projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
* config.in: Disable sanity check for kfreebsd.
[deliverable/binutils-gdb.git] / gold / sparc.cc
CommitLineData
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 62 copy_relocs_(elfcpp::R_SPARC_COPY), dynbss_(NULL),
a4d85145
DM		 63 got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL),
64 elf_machine_(sparc_info.machine_code), elf_flags_(0),
65 elf_flags_set_(false)
f5314dd5
DM		 66 {
67 }
68
2e702c99 69 // Process the relocations to determine unreferenced sections for
6d03d481
ST		 70 // garbage collection.
71 void
ad0f2072 72 gc_process_relocs(Symbol_table* symtab,
2e702c99
RM		 73 Layout* layout,
74 Sized_relobj_file<size, big_endian>* object,
75 unsigned int data_shndx,
76 unsigned int sh_type,
77 const unsigned char* prelocs,
78 size_t reloc_count,
79 Output_section* output_section,
80 bool needs_special_offset_handling,
81 size_t local_symbol_count,
82 const unsigned char* plocal_symbols);
6d03d481 83
f5314dd5
DM		 84 // Scan the relocations to look for symbol adjustments.
85 void
ad0f2072 86 scan_relocs(Symbol_table* symtab,
f5314dd5 87 Layout* layout,
6fa2a40b 88 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 89 unsigned int data_shndx,
90 unsigned int sh_type,
91 const unsigned char* prelocs,
92 size_t reloc_count,
93 Output_section* output_section,
94 bool needs_special_offset_handling,
95 size_t local_symbol_count,
96 const unsigned char* plocal_symbols);
97 // Finalize the sections.
98 void
f59f41f3 99 do_finalize_sections(Layout*, const Input_objects*, Symbol_table*);
f5314dd5
DM		 100
101 // Return the value to use for a dynamic which requires special
102 // treatment.
103 uint64_t
104 do_dynsym_value(const Symbol*) const;
105
106 // Relocate a section.
107 void
108 relocate_section(const Relocate_info<size, big_endian>*,
109 unsigned int sh_type,
110 const unsigned char* prelocs,
111 size_t reloc_count,
112 Output_section* output_section,
113 bool needs_special_offset_handling,
114 unsigned char* view,
115 typename elfcpp::Elf_types<size>::Elf_Addr view_address,
364c7fa5
ILT		 116 section_size_type view_size,
117 const Reloc_symbol_changes*);
f5314dd5
DM		 118
119 // Scan the relocs during a relocatable link.
120 void
ad0f2072 121 scan_relocatable_relocs(Symbol_table* symtab,
f5314dd5 122 Layout* layout,
6fa2a40b 123 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 124 unsigned int data_shndx,
125 unsigned int sh_type,
126 const unsigned char* prelocs,
127 size_t reloc_count,
128 Output_section* output_section,
129 bool needs_special_offset_handling,
130 size_t local_symbol_count,
131 const unsigned char* plocal_symbols,
132 Relocatable_relocs*);
133
7404fe1b 134 // Emit relocations for a section.
f5314dd5 135 void
7404fe1b
AM		 136 relocate_relocs(const Relocate_info<size, big_endian>*,
137 unsigned int sh_type,
138 const unsigned char* prelocs,
139 size_t reloc_count,
140 Output_section* output_section,
141 off_t offset_in_output_section,
142 const Relocatable_relocs*,
143 unsigned char* view,
144 typename elfcpp::Elf_types<size>::Elf_Addr view_address,
145 section_size_type view_size,
146 unsigned char* reloc_view,
147 section_size_type reloc_view_size);
148
f5314dd5
DM		 149 // Return whether SYM is defined by the ABI.
150 bool
9c2d0ef9 151 do_is_defined_by_abi(const Symbol* sym) const
f5314dd5
DM		 152 {
153 // XXX Really need to support this better...
154 if (sym->type() == elfcpp::STT_SPARC_REGISTER)
155 return 1;
156
157 return strcmp(sym->name(), "___tls_get_addr") == 0;
158 }
159
8c2bf391
DM		 160 // Return the PLT address to use for a global symbol.
161 uint64_t
162 do_plt_address_for_global(const Symbol* gsym) const
163 { return this->plt_section()->address_for_global(gsym); }
164
165 uint64_t
166 do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const
167 { return this->plt_section()->address_for_local(relobj, symndx); }
168
9efe6174
ILT		 169 // Return whether there is a GOT section.
170 bool
171 has_got_section() const
172 { return this->got_ != NULL; }
173
f5314dd5
DM		 174 // Return the size of the GOT section.
175 section_size_type
0e70b911 176 got_size() const
f5314dd5
DM		 177 {
178 gold_assert(this->got_ != NULL);
179 return this->got_->data_size();
180 }
181
0e70b911
CC		 182 // Return the number of entries in the GOT.
183 unsigned int
184 got_entry_count() const
185 {
186 if (this->got_ == NULL)
187 return 0;
188 return this->got_size() / (size / 8);
189 }
190
2a1079e8
DM		 191 // Return the address of the GOT.
192 uint64_t
193 got_address() const
194 {
195 if (this->got_ == NULL)
196 return 0;
197 return this->got_->address();
198 }
199
0e70b911
CC		 200 // Return the number of entries in the PLT.
201 unsigned int
202 plt_entry_count() const;
203
204 // Return the offset of the first non-reserved PLT entry.
205 unsigned int
206 first_plt_entry_offset() const;
207
208 // Return the size of each PLT entry.
209 unsigned int
210 plt_entry_size() const;
211
a4d85145
DM		 212 protected:
213 // Make an ELF object.
214 Object*
215 do_make_elf_object(const std::string&, Input_file*, off_t,
216 const elfcpp::Ehdr<size, big_endian>& ehdr);
217
218 void
219 do_adjust_elf_header(unsigned char* view, int len) const;
220
f5314dd5
DM		 221 private:
222
223 // The class which scans relocations.
32b769e1 224 class Scan
f5314dd5 225 {
32b769e1
DM		 226 public:
227 Scan()
228 : issued_non_pic_error_(false)
229 { }
230
95a2c8d6
RS		 231 static inline int
232 get_reference_flags(unsigned int r_type);
233
f5314dd5 234 inline void
ad0f2072 235 local(Symbol_table* symtab, Layout* layout, Target_sparc* target,
6fa2a40b 236 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 237 unsigned int data_shndx,
238 Output_section* output_section,
239 const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
240 const elfcpp::Sym<size, big_endian>& lsym);
241
242 inline void
ad0f2072 243 global(Symbol_table* symtab, Layout* layout, Target_sparc* target,
6fa2a40b 244 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 245 unsigned int data_shndx,
246 Output_section* output_section,
247 const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
248 Symbol* gsym);
249
21bb3914
ST		 250 inline bool
251 local_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
2e702c99
RM		 252 Target_sparc* ,
253 Sized_relobj_file<size, big_endian>* ,
21bb3914 254 unsigned int ,
2e702c99
RM		 255 Output_section* ,
256 const elfcpp::Rela<size, big_endian>& ,
257 unsigned int ,
258 const elfcpp::Sym<size, big_endian>&)
21bb3914
ST		 259 { return false; }
260
261 inline bool
262 global_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
2e702c99
RM		 263 Target_sparc* ,
264 Sized_relobj_file<size, big_endian>* ,
265 unsigned int ,
266 Output_section* ,
267 const elfcpp::Rela<size,
268 big_endian>& ,
269 unsigned int , Symbol*)
21bb3914
ST		 270 { return false; }
271
272
32b769e1 273 private:
f5314dd5 274 static void
6fa2a40b 275 unsupported_reloc_local(Sized_relobj_file<size, big_endian>*,
f5314dd5
DM		 276 unsigned int r_type);
277
278 static void
6fa2a40b 279 unsupported_reloc_global(Sized_relobj_file<size, big_endian>*,
f5314dd5
DM		 280 unsigned int r_type, Symbol*);
281
282 static void
283 generate_tls_call(Symbol_table* symtab, Layout* layout,
284 Target_sparc* target);
32b769e1
DM		 285
286 void
287 check_non_pic(Relobj*, unsigned int r_type);
288
8c2bf391
DM		 289 bool
290 reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*,
291 unsigned int r_type);
292
32b769e1
DM		 293 // Whether we have issued an error about a non-PIC compilation.
294 bool issued_non_pic_error_;
f5314dd5
DM		 295 };
296
297 // The class which implements relocation.
298 class Relocate
299 {
300 public:
301 Relocate()
abd242a9 302 : ignore_gd_add_(false), reloc_adjust_addr_(NULL)
f5314dd5
DM		 303 { }
304
305 ~Relocate()
306 {
307 if (this->ignore_gd_add_)
308 {
309 // FIXME: This needs to specify the location somehow.
310 gold_error(_("missing expected TLS relocation"));
311 }
312 }
313
314 // Do a relocation. Return false if the caller should not issue
315 // any warnings about this relocation.
316 inline bool
317 relocate(const Relocate_info<size, big_endian>*, Target_sparc*,
031cdbed
ILT		 318 Output_section*, size_t relnum,
319 const elfcpp::Rela<size, big_endian>&,
f5314dd5
DM		 320 unsigned int r_type, const Sized_symbol<size>*,
321 const Symbol_value<size>*,
322 unsigned char*,
323 typename elfcpp::Elf_types<size>::Elf_Addr,
324 section_size_type);
325
326 private:
327 // Do a TLS relocation.
328 inline void
329 relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target,
2e702c99 330 size_t relnum, const elfcpp::Rela<size, big_endian>&,
f5314dd5
DM		 331 unsigned int r_type, const Sized_symbol<size>*,
332 const Symbol_value<size>*,
333 unsigned char*,
334 typename elfcpp::Elf_types<size>::Elf_Addr,
335 section_size_type);
336
a5a5f7a3
DM		 337 inline void
338 relax_call(Target_sparc<size, big_endian>* target,
339 unsigned char* view,
340 const elfcpp::Rela<size, big_endian>& rela,
341 section_size_type view_size);
342
f5314dd5
DM		 343 // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD
344 bool ignore_gd_add_;
abd242a9
DM		 345
346 // If we hit a reloc at this view address, adjust it back by 4 bytes.
347 unsigned char *reloc_adjust_addr_;
f5314dd5
DM		 348 };
349
350 // A class which returns the size required for a relocation type,
351 // used while scanning relocs during a relocatable link.
352 class Relocatable_size_for_reloc
353 {
354 public:
355 unsigned int
356 get_size_for_reloc(unsigned int, Relobj*);
357 };
358
359 // Get the GOT section, creating it if necessary.
360 Output_data_got<size, big_endian>*
361 got_section(Symbol_table*, Layout*);
362
8c2bf391
DM		 363 // Create the PLT section.
364 void
365 make_plt_section(Symbol_table* symtab, Layout* layout);
366
f5314dd5
DM		 367 // Create a PLT entry for a global symbol.
368 void
369 make_plt_entry(Symbol_table*, Layout*, Symbol*);
370
8c2bf391
DM		 371 // Create a PLT entry for a local STT_GNU_IFUNC symbol.
372 void
373 make_local_ifunc_plt_entry(Symbol_table*, Layout*,
374 Sized_relobj_file<size, big_endian>* relobj,
375 unsigned int local_sym_index);
376
f5314dd5
DM		 377 // Create a GOT entry for the TLS module index.
378 unsigned int
379 got_mod_index_entry(Symbol_table* symtab, Layout* layout,
6fa2a40b 380 Sized_relobj_file<size, big_endian>* object);
f5314dd5
DM		 381
382 // Return the gsym for "__tls_get_addr". Cache if not already
383 // cached.
384 Symbol*
385 tls_get_addr_sym(Symbol_table* symtab)
386 {
387 if (!this->tls_get_addr_sym_)
388 this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL);
389 gold_assert(this->tls_get_addr_sym_);
390 return this->tls_get_addr_sym_;
391 }
392
393 // Get the PLT section.
8c2bf391 394 Output_data_plt_sparc<size, big_endian>*
f5314dd5
DM		 395 plt_section() const
396 {
397 gold_assert(this->plt_ != NULL);
398 return this->plt_;
399 }
400
401 // Get the dynamic reloc section, creating it if necessary.
402 Reloc_section*
403 rela_dyn_section(Layout*);
404
8c2bf391
DM		 405 // Get the section to use for IFUNC relocations.
406 Reloc_section*
407 rela_ifunc_section(Layout*);
408
f5314dd5
DM		 409 // Copy a relocation against a global symbol.
410 void
ef9beddf 411 copy_reloc(Symbol_table* symtab, Layout* layout,
2e702c99 412 Sized_relobj_file<size, big_endian>* object,
12c0daef
ILT		 413 unsigned int shndx, Output_section* output_section,
414 Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc)
415 {
416 this->copy_relocs_.copy_reloc(symtab, layout,
417 symtab->get_sized_symbol<size>(sym),
418 object, shndx, output_section,
419 reloc, this->rela_dyn_section(layout));
420 }
f5314dd5
DM		 421
422 // Information about this specific target which we pass to the
423 // general Target structure.
424 static Target::Target_info sparc_info;
425
426 // The types of GOT entries needed for this platform.
0e70b911
CC		 427 // These values are exposed to the ABI in an incremental link.
428 // Do not renumber existing values without changing the version
429 // number of the .gnu_incremental_inputs section.
f5314dd5
DM		 430 enum Got_type
431 {
432 GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol
433 GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset
434 GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair
435 };
436
437 // The GOT section.
438 Output_data_got<size, big_endian>* got_;
439 // The PLT section.
440 Output_data_plt_sparc<size, big_endian>* plt_;
441 // The dynamic reloc section.
442 Reloc_section* rela_dyn_;
8c2bf391
DM		 443 // The section to use for IFUNC relocs.
444 Reloc_section* rela_ifunc_;
f5314dd5 445 // Relocs saved to avoid a COPY reloc.
12c0daef 446 Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_;
f5314dd5
DM		 447 // Space for variables copied with a COPY reloc.
448 Output_data_space* dynbss_;
449 // Offset of the GOT entry for the TLS module index;
450 unsigned int got_mod_index_offset_;
451 // Cached pointer to __tls_get_addr symbol
452 Symbol* tls_get_addr_sym_;
a4d85145
DM		 453 // Accumulated elf machine type
454 elfcpp::Elf_Half elf_machine_;
455 // Accumulated elf header flags
456 elfcpp::Elf_Word elf_flags_;
457 // Whether elf_flags_ has been set for the first time yet
458 bool elf_flags_set_;
f5314dd5
DM		 459};
460
461template<>
462Target::Target_info Target_sparc<32, true>::sparc_info =
463{
464 32, // size
465 true, // is_big_endian
466 elfcpp::EM_SPARC, // 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/ld.so.1", // dynamic_linker
474 0x00010000, // default_text_segment_address
475 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
8a5e3e08 476 8 * 1024, // common_pagesize (overridable by -z common-page-size)
2e702c99
RM		 477 false, // isolate_execinstr
478 0, // rosegment_gap
8a5e3e08
ILT		 479 elfcpp::SHN_UNDEF, // small_common_shndx
480 elfcpp::SHN_UNDEF, // large_common_shndx
481 0, // small_common_section_flags
05a352e6
DK		 482 0, // large_common_section_flags
483 NULL, // attributes_section
484 NULL // attributes_vendor
f5314dd5
DM		 485};
486
487template<>
488Target::Target_info Target_sparc<64, true>::sparc_info =
489{
490 64, // size
491 true, // is_big_endian
492 elfcpp::EM_SPARCV9, // machine_code
493 false, // has_make_symbol
494 false, // has_resolve
495 false, // has_code_fill
496 true, // is_default_stack_executable
b3ce541e 497 false, // can_icf_inline_merge_sections
f5314dd5
DM		 498 '\0', // wrap_char
499 "/usr/lib/sparcv9/ld.so.1", // dynamic_linker
500 0x100000, // default_text_segment_address
501 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
8a5e3e08 502 8 * 1024, // common_pagesize (overridable by -z common-page-size)
2e702c99
RM		 503 false, // isolate_execinstr
504 0, // rosegment_gap
8a5e3e08
ILT		 505 elfcpp::SHN_UNDEF, // small_common_shndx
506 elfcpp::SHN_UNDEF, // large_common_shndx
507 0, // small_common_section_flags
05a352e6
DK		 508 0, // large_common_section_flags
509 NULL, // attributes_section
510 NULL // attributes_vendor
f5314dd5
DM		 511};
512
513// We have to take care here, even when operating in little-endian
514// mode, sparc instructions are still big endian.
515template<int size, bool big_endian>
516class Sparc_relocate_functions
517{
518private:
519 // Do a simple relocation with the addend in the relocation.
520 template<int valsize>
521 static inline void
522 rela(unsigned char* view,
523 unsigned int right_shift,
524 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
2ea97941 525 typename elfcpp::Swap<size, big_endian>::Valtype value,
f5314dd5
DM		 526 typename elfcpp::Swap<size, big_endian>::Valtype addend)
527 {
528 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
529 Valtype* wv = reinterpret_cast<Valtype*>(view);
530 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
2ea97941 531 Valtype reloc = ((value + addend) >> right_shift);
f5314dd5
DM		 532
533 val &= ~dst_mask;
534 reloc &= dst_mask;
535
536 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
537 }
538
539 // Do a simple relocation using a symbol value with the addend in
540 // the relocation.
541 template<int valsize>
542 static inline void
543 rela(unsigned char* view,
544 unsigned int right_shift,
545 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
6fa2a40b 546 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 547 const Symbol_value<size>* psymval,
548 typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
549 {
550 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
551 Valtype* wv = reinterpret_cast<Valtype*>(view);
552 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
553 Valtype reloc = (psymval->value(object, addend) >> right_shift);
554
555 val &= ~dst_mask;
556 reloc &= dst_mask;
557
558 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
559 }
560
561 // Do a simple relocation using a symbol value with the addend in
562 // the relocation, unaligned.
563 template<int valsize>
564 static inline void
565 rela_ua(unsigned char* view,
566 unsigned int right_shift, elfcpp::Elf_Xword dst_mask,
6fa2a40b 567 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 568 const Symbol_value<size>* psymval,
569 typename elfcpp::Swap<size, big_endian>::Valtype addend)
570 {
571 typedef typename elfcpp::Swap_unaligned<valsize,
572 big_endian>::Valtype Valtype;
573 unsigned char* wv = view;
574 Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv);
575 Valtype reloc = (psymval->value(object, addend) >> right_shift);
576
577 val &= ~dst_mask;
578 reloc &= dst_mask;
579
580 elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc);
581 }
582
583 // Do a simple PC relative relocation with a Symbol_value with the
584 // addend in the relocation.
585 template<int valsize>
586 static inline void
587 pcrela(unsigned char* view,
588 unsigned int right_shift,
589 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
6fa2a40b 590 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 591 const Symbol_value<size>* psymval,
592 typename elfcpp::Swap<size, big_endian>::Valtype addend,
593 typename elfcpp::Elf_types<size>::Elf_Addr address)
594 {
595 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
596 Valtype* wv = reinterpret_cast<Valtype*>(view);
597 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
598 Valtype reloc = ((psymval->value(object, addend) - address)
599 >> right_shift);
600
601 val &= ~dst_mask;
602 reloc &= dst_mask;
603
604 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
605 }
606
607 template<int valsize>
608 static inline void
609 pcrela_unaligned(unsigned char* view,
6fa2a40b 610 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 611 const Symbol_value<size>* psymval,
612 typename elfcpp::Swap<size, big_endian>::Valtype addend,
613 typename elfcpp::Elf_types<size>::Elf_Addr address)
614 {
615 typedef typename elfcpp::Swap_unaligned<valsize,
616 big_endian>::Valtype Valtype;
617 unsigned char* wv = view;
618 Valtype reloc = (psymval->value(object, addend) - address);
619
620 elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc);
621 }
622
623 typedef Sparc_relocate_functions<size, big_endian> This;
624 typedef Sparc_relocate_functions<size, true> This_insn;
625
626public:
627 // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2
628 static inline void
629 wdisp30(unsigned char* view,
6fa2a40b 630 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 631 const Symbol_value<size>* psymval,
632 typename elfcpp::Elf_types<size>::Elf_Addr addend,
633 typename elfcpp::Elf_types<size>::Elf_Addr address)
634 {
635 This_insn::template pcrela<32>(view, 2, 0x3fffffff, object,
636 psymval, addend, address);
637 }
638
639 // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2
640 static inline void
641 wdisp22(unsigned char* view,
6fa2a40b 642 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 643 const Symbol_value<size>* psymval,
644 typename elfcpp::Elf_types<size>::Elf_Addr addend,
645 typename elfcpp::Elf_types<size>::Elf_Addr address)
646 {
647 This_insn::template pcrela<32>(view, 2, 0x003fffff, object,
648 psymval, addend, address);
649 }
650
651 // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2
652 static inline void
653 wdisp19(unsigned char* view,
6fa2a40b 654 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 655 const Symbol_value<size>* psymval,
656 typename elfcpp::Elf_types<size>::Elf_Addr addend,
657 typename elfcpp::Elf_types<size>::Elf_Addr address)
658 {
659 This_insn::template pcrela<32>(view, 2, 0x0007ffff, object,
660 psymval, addend, address);
661 }
662
663 // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2
664 static inline void
665 wdisp16(unsigned char* view,
6fa2a40b 666 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 667 const Symbol_value<size>* psymval,
668 typename elfcpp::Elf_types<size>::Elf_Addr addend,
669 typename elfcpp::Elf_types<size>::Elf_Addr address)
670 {
671 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
672 Valtype* wv = reinterpret_cast<Valtype*>(view);
673 Valtype val = elfcpp::Swap<32, true>::readval(wv);
674 Valtype reloc = ((psymval->value(object, addend) - address)
675 >> 2);
676
677 // The relocation value is split between the low 14 bits,
678 // and bits 20-21.
679 val &= ~((0x3 << 20) | 0x3fff);
680 reloc = (((reloc & 0xc000) << (20 - 14))
681 | (reloc & 0x3ffff));
682
683 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
684 }
685
2615994e
DM		 686 // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2
687 static inline void
688 wdisp10(unsigned char* view,
689 const Sized_relobj_file<size, big_endian>* object,
690 const Symbol_value<size>* psymval,
691 typename elfcpp::Elf_types<size>::Elf_Addr addend,
692 typename elfcpp::Elf_types<size>::Elf_Addr address)
693 {
694 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
695 Valtype* wv = reinterpret_cast<Valtype*>(view);
696 Valtype val = elfcpp::Swap<32, true>::readval(wv);
697 Valtype reloc = ((psymval->value(object, addend) - address)
698 >> 2);
699
700 // The relocation value is split between the low bits 5-12,
701 // and high bits 19-20.
702 val &= ~((0x3 << 19) | (0xff << 5));
703 reloc = (((reloc & 0x300) << (19 - 8))
704 | ((reloc & 0xff) << (5 - 0)));
705
706 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
707 }
708
f5314dd5
DM		 709 // R_SPARC_PC22: (Symbol + Addend - Address) >> 10
710 static inline void
711 pc22(unsigned char* view,
6fa2a40b 712 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 713 const Symbol_value<size>* psymval,
714 typename elfcpp::Elf_types<size>::Elf_Addr addend,
715 typename elfcpp::Elf_types<size>::Elf_Addr address)
716 {
717 This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
718 psymval, addend, address);
719 }
720
721 // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff
722 static inline void
723 pc10(unsigned char* view,
6fa2a40b 724 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 725 const Symbol_value<size>* psymval,
726 typename elfcpp::Elf_types<size>::Elf_Addr addend,
727 typename elfcpp::Elf_types<size>::Elf_Addr address)
728 {
729 This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
730 psymval, addend, address);
731 }
732
733 // R_SPARC_HI22: (Symbol + Addend) >> 10
734 static inline void
735 hi22(unsigned char* view,
2ea97941 736 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 737 typename elfcpp::Elf_types<size>::Elf_Addr addend)
738 {
2ea97941 739 This_insn::template rela<32>(view, 10, 0x003fffff, value, addend);
f5314dd5
DM		 740 }
741
742 // R_SPARC_HI22: (Symbol + Addend) >> 10
743 static inline void
744 hi22(unsigned char* view,
6fa2a40b 745 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 746 const Symbol_value<size>* psymval,
747 typename elfcpp::Elf_types<size>::Elf_Addr addend)
748 {
749 This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend);
750 }
751
752 // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10
753 static inline void
754 pcplt22(unsigned char* view,
6fa2a40b 755 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 756 const Symbol_value<size>* psymval,
757 typename elfcpp::Elf_types<size>::Elf_Addr addend,
758 typename elfcpp::Elf_types<size>::Elf_Addr address)
759 {
760 This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
761 psymval, addend, address);
762 }
763
764 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
765 static inline void
766 lo10(unsigned char* view,
2ea97941 767 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 768 typename elfcpp::Elf_types<size>::Elf_Addr addend)
769 {
2ea97941 770 This_insn::template rela<32>(view, 0, 0x000003ff, value, addend);
f5314dd5
DM		 771 }
772
773 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
774 static inline void
775 lo10(unsigned char* view,
6fa2a40b 776 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 777 const Symbol_value<size>* psymval,
778 typename elfcpp::Elf_types<size>::Elf_Addr addend)
779 {
780 This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
781 }
782
783 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
784 static inline void
785 lo10(unsigned char* view,
6fa2a40b 786 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 787 const Symbol_value<size>* psymval,
788 typename elfcpp::Elf_types<size>::Elf_Addr addend,
789 typename elfcpp::Elf_types<size>::Elf_Addr address)
790 {
791 This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
792 psymval, addend, address);
793 }
794
795 // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2
796 static inline void
797 olo10(unsigned char* view,
6fa2a40b 798 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 799 const Symbol_value<size>* psymval,
800 typename elfcpp::Elf_types<size>::Elf_Addr addend,
801 typename elfcpp::Elf_types<size>::Elf_Addr addend2)
802 {
803 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
804 Valtype* wv = reinterpret_cast<Valtype*>(view);
805 Valtype val = elfcpp::Swap<32, true>::readval(wv);
806 Valtype reloc = psymval->value(object, addend);
807
808 val &= ~0x1fff;
809 reloc &= 0x3ff;
810 reloc += addend2;
811 reloc &= 0x1fff;
812
813 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
814 }
815
816 // R_SPARC_22: (Symbol + Addend)
817 static inline void
818 rela32_22(unsigned char* view,
6fa2a40b 819 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 820 const Symbol_value<size>* psymval,
821 typename elfcpp::Elf_types<size>::Elf_Addr addend)
822 {
823 This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend);
824 }
825
826 // R_SPARC_13: (Symbol + Addend)
827 static inline void
828 rela32_13(unsigned char* view,
2ea97941 829 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 830 typename elfcpp::Elf_types<size>::Elf_Addr addend)
831 {
2ea97941 832 This_insn::template rela<32>(view, 0, 0x00001fff, value, addend);
f5314dd5
DM		 833 }
834
835 // R_SPARC_13: (Symbol + Addend)
836 static inline void
837 rela32_13(unsigned char* view,
6fa2a40b 838 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 839 const Symbol_value<size>* psymval,
840 typename elfcpp::Elf_types<size>::Elf_Addr addend)
841 {
842 This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend);
843 }
844
845 // R_SPARC_UA16: (Symbol + Addend)
846 static inline void
847 ua16(unsigned char* view,
6fa2a40b 848 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 849 const Symbol_value<size>* psymval,
850 typename elfcpp::Elf_types<size>::Elf_Addr addend)
851 {
852 This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend);
853 }
854
855 // R_SPARC_UA32: (Symbol + Addend)
856 static inline void
857 ua32(unsigned char* view,
6fa2a40b 858 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 859 const Symbol_value<size>* psymval,
860 typename elfcpp::Elf_types<size>::Elf_Addr addend)
861 {
862 This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend);
863 }
864
865 // R_SPARC_UA64: (Symbol + Addend)
866 static inline void
867 ua64(unsigned char* view,
6fa2a40b 868 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 869 const Symbol_value<size>* psymval,
870 typename elfcpp::Elf_types<size>::Elf_Addr addend)
871 {
872 This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0,
873 object, psymval, addend);
874 }
875
876 // R_SPARC_DISP8: (Symbol + Addend - Address)
877 static inline void
878 disp8(unsigned char* view,
6fa2a40b 879 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 880 const Symbol_value<size>* psymval,
881 typename elfcpp::Elf_types<size>::Elf_Addr addend,
882 typename elfcpp::Elf_types<size>::Elf_Addr address)
883 {
884 This::template pcrela_unaligned<8>(view, object, psymval,
885 addend, address);
886 }
887
888 // R_SPARC_DISP16: (Symbol + Addend - Address)
889 static inline void
890 disp16(unsigned char* view,
6fa2a40b 891 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 892 const Symbol_value<size>* psymval,
893 typename elfcpp::Elf_types<size>::Elf_Addr addend,
894 typename elfcpp::Elf_types<size>::Elf_Addr address)
895 {
896 This::template pcrela_unaligned<16>(view, object, psymval,
897 addend, address);
898 }
899
900 // R_SPARC_DISP32: (Symbol + Addend - Address)
901 static inline void
902 disp32(unsigned char* view,
6fa2a40b 903 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 904 const Symbol_value<size>* psymval,
905 typename elfcpp::Elf_types<size>::Elf_Addr addend,
906 typename elfcpp::Elf_types<size>::Elf_Addr address)
907 {
908 This::template pcrela_unaligned<32>(view, object, psymval,
909 addend, address);
910 }
911
912 // R_SPARC_DISP64: (Symbol + Addend - Address)
913 static inline void
914 disp64(unsigned char* view,
6fa2a40b 915 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 916 const Symbol_value<size>* psymval,
917 elfcpp::Elf_Xword addend,
918 typename elfcpp::Elf_types<size>::Elf_Addr address)
919 {
920 This::template pcrela_unaligned<64>(view, object, psymval,
921 addend, address);
922 }
923
2615994e
DM		 924 // R_SPARC_H34: (Symbol + Addend) >> 12
925 static inline void
926 h34(unsigned char* view,
927 const Sized_relobj_file<size, big_endian>* object,
928 const Symbol_value<size>* psymval,
929 typename elfcpp::Elf_types<size>::Elf_Addr addend)
930 {
931 This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend);
932 }
933
f5314dd5
DM		 934 // R_SPARC_H44: (Symbol + Addend) >> 22
935 static inline void
936 h44(unsigned char* view,
6fa2a40b 937 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 938 const Symbol_value<size>* psymval,
939 typename elfcpp::Elf_types<size>::Elf_Addr addend)
940 {
941 This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend);
942 }
943
944 // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff
945 static inline void
946 m44(unsigned char* view,
6fa2a40b 947 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 948 const Symbol_value<size>* psymval,
949 typename elfcpp::Elf_types<size>::Elf_Addr addend)
950 {
951 This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend);
952 }
953
954 // R_SPARC_L44: (Symbol + Addend) & 0xfff
955 static inline void
956 l44(unsigned char* view,
6fa2a40b 957 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 958 const Symbol_value<size>* psymval,
959 typename elfcpp::Elf_types<size>::Elf_Addr addend)
960 {
961 This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend);
962 }
963
964 // R_SPARC_HH22: (Symbol + Addend) >> 42
965 static inline void
966 hh22(unsigned char* view,
6fa2a40b 967 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 968 const Symbol_value<size>* psymval,
969 typename elfcpp::Elf_types<size>::Elf_Addr addend)
970 {
971 This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend);
972 }
973
974 // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42
975 static inline void
976 pc_hh22(unsigned char* view,
6fa2a40b 977 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 978 const Symbol_value<size>* psymval,
979 typename elfcpp::Elf_types<size>::Elf_Addr addend,
980 typename elfcpp::Elf_types<size>::Elf_Addr address)
981 {
982 This_insn::template pcrela<32>(view, 42, 0x003fffff, object,
983 psymval, addend, address);
984 }
985
986 // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff
987 static inline void
988 hm10(unsigned char* view,
6fa2a40b 989 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 990 const Symbol_value<size>* psymval,
991 typename elfcpp::Elf_types<size>::Elf_Addr addend)
992 {
993 This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend);
994 }
995
996 // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff
997 static inline void
998 pc_hm10(unsigned char* view,
6fa2a40b 999 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1000 const Symbol_value<size>* psymval,
1001 typename elfcpp::Elf_types<size>::Elf_Addr addend,
1002 typename elfcpp::Elf_types<size>::Elf_Addr address)
1003 {
1004 This_insn::template pcrela<32>(view, 32, 0x000003ff, object,
1005 psymval, addend, address);
1006 }
1007
1008 // R_SPARC_11: (Symbol + Addend)
1009 static inline void
1010 rela32_11(unsigned char* view,
6fa2a40b 1011 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1012 const Symbol_value<size>* psymval,
1013 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1014 {
1015 This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend);
1016 }
1017
1018 // R_SPARC_10: (Symbol + Addend)
1019 static inline void
1020 rela32_10(unsigned char* view,
6fa2a40b 1021 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1022 const Symbol_value<size>* psymval,
1023 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1024 {
1025 This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
1026 }
1027
1028 // R_SPARC_7: (Symbol + Addend)
1029 static inline void
1030 rela32_7(unsigned char* view,
6fa2a40b 1031 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1032 const Symbol_value<size>* psymval,
1033 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1034 {
1035 This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend);
1036 }
1037
1038 // R_SPARC_6: (Symbol + Addend)
1039 static inline void
1040 rela32_6(unsigned char* view,
6fa2a40b 1041 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1042 const Symbol_value<size>* psymval,
1043 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1044 {
1045 This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend);
1046 }
1047
1048 // R_SPARC_5: (Symbol + Addend)
1049 static inline void
1050 rela32_5(unsigned char* view,
6fa2a40b 1051 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1052 const Symbol_value<size>* psymval,
1053 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1054 {
1055 This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend);
1056 }
1057
1058 // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10
1059 static inline void
1060 ldo_hix22(unsigned char* view,
2ea97941 1061 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1062 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1063 {
2ea97941 1064 This_insn::hi22(view, value, addend);
f5314dd5
DM		 1065 }
1066
1067 // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff
1068 static inline void
1069 ldo_lox10(unsigned char* view,
2ea97941 1070 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1071 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1072 {
1073 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1074 Valtype* wv = reinterpret_cast<Valtype*>(view);
1075 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1076 Valtype reloc = (value + addend);
f5314dd5
DM		 1077
1078 val &= ~0x1fff;
1079 reloc &= 0x3ff;
1080
1081 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1082 }
1083
1084 // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10
1085 static inline void
1086 hix22(unsigned char* view,
2ea97941 1087 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1088 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1089 {
1090 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1091 Valtype* wv = reinterpret_cast<Valtype*>(view);
1092 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1093 Valtype reloc = (value + addend);
f5314dd5
DM		 1094
1095 val &= ~0x3fffff;
1096
1097 reloc ^= ~(Valtype)0;
1098 reloc >>= 10;
1099
1100 reloc &= 0x3fffff;
1101
1102 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1103 }
1104
2a1079e8
DM		 1105 // R_SPARC_GOTDATA_OP_HIX22: @gdopoff(Symbol + Addend) >> 10
1106 static inline void
1107 gdop_hix22(unsigned char* view,
1108 typename elfcpp::Elf_types<size>::Elf_Addr value,
1109 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1110 {
1111 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1112 Valtype* wv = reinterpret_cast<Valtype*>(view);
1113 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1114 int32_t reloc = static_cast<int32_t>(value + addend);
1115
1116 val &= ~0x3fffff;
1117
1118 if (reloc < 0)
1119 reloc ^= ~static_cast<int32_t>(0);
1120 reloc >>= 10;
1121
1122 reloc &= 0x3fffff;
1123
1124 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1125 }
1126
f5314dd5
DM		 1127 // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10
1128 static inline void
1129 hix22(unsigned char* view,
6fa2a40b 1130 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1131 const Symbol_value<size>* psymval,
1132 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1133 {
1134 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1135 Valtype* wv = reinterpret_cast<Valtype*>(view);
1136 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1137 Valtype reloc = psymval->value(object, addend);
1138
1139 val &= ~0x3fffff;
1140
1141 reloc ^= ~(Valtype)0;
1142 reloc >>= 10;
1143
1144 reloc &= 0x3fffff;
1145
1146 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1147 }
1148
1149
1150 // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00
1151 static inline void
1152 lox10(unsigned char* view,
2ea97941 1153 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1154 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1155 {
1156 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1157 Valtype* wv = reinterpret_cast<Valtype*>(view);
1158 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1159 Valtype reloc = (value + addend);
f5314dd5
DM		 1160
1161 val &= ~0x1fff;
1162 reloc &= 0x3ff;
1163 reloc |= 0x1c00;
1164
1165 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1166 }
1167
2a1079e8
DM		 1168 // R_SPARC_GOTDATA_OP_LOX10: (@gdopoff(Symbol + Addend) & 0x3ff) | 0x1c00
1169 static inline void
1170 gdop_lox10(unsigned char* view,
1171 typename elfcpp::Elf_types<size>::Elf_Addr value,
1172 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1173 {
1174 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1175 Valtype* wv = reinterpret_cast<Valtype*>(view);
1176 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1177 int32_t reloc = static_cast<int32_t>(value + addend);
1178
1179 if (reloc < 0)
1180 reloc = (reloc & 0x3ff) | 0x1c00;
1181 else
1182 reloc = (reloc & 0x3ff);
1183
1184 val &= ~0x1fff;
1185 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1186 }
1187
f5314dd5
DM		 1188 // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00
1189 static inline void
1190 lox10(unsigned char* view,
6fa2a40b 1191 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1192 const Symbol_value<size>* psymval,
1193 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1194 {
1195 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1196 Valtype* wv = reinterpret_cast<Valtype*>(view);
1197 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1198 Valtype reloc = psymval->value(object, addend);
1199
1200 val &= ~0x1fff;
1201 reloc &= 0x3ff;
1202 reloc |= 0x1c00;
1203
1204 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1205 }
1206};
1207
1208// Get the GOT section, creating it if necessary.
1209
1210template<int size, bool big_endian>
1211Output_data_got<size, big_endian>*
1212Target_sparc<size, big_endian>::got_section(Symbol_table* symtab,
1213 Layout* layout)
1214{
1215 if (this->got_ == NULL)
1216 {
1217 gold_assert(symtab != NULL && layout != NULL);
1218
1219 this->got_ = new Output_data_got<size, big_endian>();
1220
82742395
ILT		 1221 layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
1222 (elfcpp::SHF_ALLOC
1223 | elfcpp::SHF_WRITE),
22f0da72 1224 this->got_, ORDER_RELRO, true);
f5314dd5
DM		 1225
1226 // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section.
1227 symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL,
99fff23b 1228 Symbol_table::PREDEFINED,
f5314dd5
DM		 1229 this->got_,
1230 0, 0, elfcpp::STT_OBJECT,
1231 elfcpp::STB_LOCAL,
1232 elfcpp::STV_HIDDEN, 0,
1233 false, false);
1234 }
1235
1236 return this->got_;
1237}
1238
1239// Get the dynamic reloc section, creating it if necessary.
1240
1241template<int size, bool big_endian>
1242typename Target_sparc<size, big_endian>::Reloc_section*
1243Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout)
1244{
1245 if (this->rela_dyn_ == NULL)
1246 {
1247 gold_assert(layout != NULL);
d98bc257 1248 this->rela_dyn_ = new Reloc_section(parameters->options().combreloc());
f5314dd5 1249 layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
22f0da72
ILT		 1250 elfcpp::SHF_ALLOC, this->rela_dyn_,
1251 ORDER_DYNAMIC_RELOCS, false);
f5314dd5
DM		 1252 }
1253 return this->rela_dyn_;
1254}
1255
8c2bf391
DM		 1256// Get the section to use for IFUNC relocs, creating it if
1257// necessary. These go in .rela.dyn, but only after all other dynamic
1258// relocations. They need to follow the other dynamic relocations so
1259// that they can refer to global variables initialized by those
1260// relocs.
1261
1262template<int size, bool big_endian>
1263typename Target_sparc<size, big_endian>::Reloc_section*
1264Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout)
1265{
1266 if (this->rela_ifunc_ == NULL)
1267 {
1268 // Make sure we have already created the dynamic reloc section.
1269 this->rela_dyn_section(layout);
1270 this->rela_ifunc_ = new Reloc_section(false);
1271 layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
1272 elfcpp::SHF_ALLOC, this->rela_ifunc_,
1273 ORDER_DYNAMIC_RELOCS, false);
1274 gold_assert(this->rela_dyn_->output_section()
1275 == this->rela_ifunc_->output_section());
1276 }
1277 return this->rela_ifunc_;
1278}
1279
f5314dd5
DM		 1280// A class to handle the PLT data.
1281
1282template<int size, bool big_endian>
1283class Output_data_plt_sparc : public Output_section_data
1284{
1285 public:
1286 typedef Output_data_reloc<elfcpp::SHT_RELA, true,
1287 size, big_endian> Reloc_section;
1288
1289 Output_data_plt_sparc(Layout*);
1290
1291 // Add an entry to the PLT.
8c2bf391
DM		 1292 void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym);
1293
1294 // Add an entry to the PLT for a local STT_GNU_IFUNC symbol.
1295 unsigned int
1296 add_local_ifunc_entry(Symbol_table*, Layout*,
1297 Sized_relobj_file<size, big_endian>* relobj,
1298 unsigned int local_sym_index);
f5314dd5
DM		 1299
1300 // Return the .rela.plt section data.
1301 const Reloc_section* rel_plt() const
1302 {
1303 return this->rel_;
1304 }
1305
8c2bf391
DM		 1306 // Return where the IFUNC relocations should go.
1307 Reloc_section*
1308 rela_ifunc(Symbol_table*, Layout*);
1309
1310 void
1311 emit_pending_ifunc_relocs();
1312
1313 // Return whether we created a section for IFUNC relocations.
1314 bool
1315 has_ifunc_section() const
1316 { return this->ifunc_rel_ != NULL; }
1317
0e70b911
CC		 1318 // Return the number of PLT entries.
1319 unsigned int
1320 entry_count() const
8c2bf391 1321 { return this->count_ + this->ifunc_count_; }
0e70b911
CC		 1322
1323 // Return the offset of the first non-reserved PLT entry.
1324 static unsigned int
1325 first_plt_entry_offset()
1326 { return 4 * base_plt_entry_size; }
1327
1328 // Return the size of a PLT entry.
1329 static unsigned int
1330 get_plt_entry_size()
1331 { return base_plt_entry_size; }
1332
8c2bf391
DM		 1333 // Return the PLT address to use for a global symbol.
1334 uint64_t
1335 address_for_global(const Symbol*);
1336
1337 // Return the PLT address to use for a local symbol.
1338 uint64_t
1339 address_for_local(const Relobj*, unsigned int symndx);
1340
f5314dd5
DM		 1341 protected:
1342 void do_adjust_output_section(Output_section* os);
1343
7d9e3d98
ILT		 1344 // Write to a map file.
1345 void
1346 do_print_to_mapfile(Mapfile* mapfile) const
1347 { mapfile->print_output_data(this, _("** PLT")); }
1348
f5314dd5
DM		 1349 private:
1350 // The size of an entry in the PLT.
1351 static const int base_plt_entry_size = (size == 32 ? 12 : 32);
1352
1353 static const unsigned int plt_entries_per_block = 160;
1354 static const unsigned int plt_insn_chunk_size = 24;
1355 static const unsigned int plt_pointer_chunk_size = 8;
1356 static const unsigned int plt_block_size =
1357 (plt_entries_per_block
1358 * (plt_insn_chunk_size + plt_pointer_chunk_size));
1359
8c2bf391
DM		 1360 section_offset_type
1361 plt_index_to_offset(unsigned int index)
f5314dd5 1362 {
8c2bf391 1363 section_offset_type offset;
f5314dd5 1364
8c2bf391
DM		 1365 if (size == 32 || index < 32768)
1366 offset = index * base_plt_entry_size;
f5314dd5
DM		 1367 else
1368 {
8c2bf391 1369 unsigned int ext_index = index - 32768;
f5314dd5 1370
8c2bf391
DM		 1371 offset = (32768 * base_plt_entry_size)
1372 + ((ext_index / plt_entries_per_block)
1373 * plt_block_size)
1374 + ((ext_index % plt_entries_per_block)
1375 * plt_insn_chunk_size);
f5314dd5 1376 }
8c2bf391
DM		 1377 return offset;
1378 }
1379
1380 // Set the final size.
1381 void
1382 set_final_data_size()
1383 {
1384 unsigned int full_count = this->entry_count() + 4;
1385 unsigned int extra = (size == 32 ? 4 : 0);
1386 section_offset_type sz = plt_index_to_offset(full_count) + extra;
1387
1388 return this->set_data_size(sz);
f5314dd5
DM		 1389 }
1390
1391 // Write out the PLT data.
1392 void
1393 do_write(Output_file*);
1394
8c2bf391
DM		 1395 struct Global_ifunc
1396 {
1397 Reloc_section* rel;
1398 Symbol* gsym;
1399 unsigned int plt_index;
1400 };
1401
1402 struct Local_ifunc
1403 {
1404 Reloc_section* rel;
1405 Sized_relobj_file<size, big_endian>* object;
1406 unsigned int local_sym_index;
1407 unsigned int plt_index;
1408 };
1409
f5314dd5
DM		 1410 // The reloc section.
1411 Reloc_section* rel_;
8c2bf391
DM		 1412 // The IFUNC relocations, if necessary. These must follow the
1413 // regular relocations.
1414 Reloc_section* ifunc_rel_;
f5314dd5
DM		 1415 // The number of PLT entries.
1416 unsigned int count_;
8c2bf391
DM		 1417 // The number of PLT entries for IFUNC symbols.
1418 unsigned int ifunc_count_;
1419 // Global STT_GNU_IFUNC symbols.
1420 std::vector<Global_ifunc> global_ifuncs_;
1421 // Local STT_GNU_IFUNC symbols.
1422 std::vector<Local_ifunc> local_ifuncs_;
f5314dd5
DM		 1423};
1424
4f2a9edd
ILT		 1425// Define the constants as required by C++ standard.
1426
1427template<int size, bool big_endian>
1428const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size;
1429
1430template<int size, bool big_endian>
1431const unsigned int
1432Output_data_plt_sparc<size, big_endian>::plt_entries_per_block;
1433
1434template<int size, bool big_endian>
1435const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size;
1436
1437template<int size, bool big_endian>
1438const unsigned int
1439Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size;
1440
1441template<int size, bool big_endian>
1442const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size;
1443
f5314dd5
DM		 1444// Create the PLT section. The ordinary .got section is an argument,
1445// since we need to refer to the start.
1446
1447template<int size, bool big_endian>
1448Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout)
8c2bf391
DM		 1449 : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL),
1450 count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_()
f5314dd5 1451{
d98bc257 1452 this->rel_ = new Reloc_section(false);
f5314dd5 1453 layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
22f0da72
ILT		 1454 elfcpp::SHF_ALLOC, this->rel_,
1455 ORDER_DYNAMIC_PLT_RELOCS, false);
f5314dd5
DM		 1456}
1457
1458template<int size, bool big_endian>
1459void
1460Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os)
1461{
1462 os->set_entsize(0);
1463}
1464
1465// Add an entry to the PLT.
1466
1467template<int size, bool big_endian>
1468void
8c2bf391
DM		 1469Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab,
1470 Layout* layout,
1471 Symbol* gsym)
f5314dd5
DM		 1472{
1473 gold_assert(!gsym->has_plt_offset());
1474
f5314dd5 1475 section_offset_type plt_offset;
8c2bf391 1476 unsigned int index;
f5314dd5 1477
8c2bf391
DM		 1478 if (gsym->type() == elfcpp::STT_GNU_IFUNC
1479 && gsym->can_use_relative_reloc(false))
1480 {
1481 index = this->ifunc_count_;
1482 plt_offset = plt_index_to_offset(index);
1483 gsym->set_plt_offset(plt_offset);
1484 ++this->ifunc_count_;
1485 Reloc_section* rel = this->rela_ifunc(symtab, layout);
1486
1487 struct Global_ifunc gi;
1488 gi.rel = rel;
1489 gi.gsym = gsym;
1490 gi.plt_index = index;
1491 this->global_ifuncs_.push_back(gi);
1492 }
f5314dd5
DM		 1493 else
1494 {
8c2bf391
DM		 1495 plt_offset = plt_index_to_offset(this->count_ + 4);
1496 gsym->set_plt_offset(plt_offset);
1497 ++this->count_;
1498 gsym->set_needs_dynsym_entry();
1499 this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this,
1500 plt_offset, 0);
1501 }
f5314dd5 1502
8c2bf391
DM		 1503 // Note that we don't need to save the symbol. The contents of the
1504 // PLT are independent of which symbols are used. The symbols only
1505 // appear in the relocations.
1506}
1507
1508template<int size, bool big_endian>
1509unsigned int
1510Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry(
1511 Symbol_table* symtab,
1512 Layout* layout,
1513 Sized_relobj_file<size, big_endian>* relobj,
1514 unsigned int local_sym_index)
1515{
1516 unsigned int index = this->ifunc_count_;
1517 section_offset_type plt_offset;
1518
1519 plt_offset = plt_index_to_offset(index);
1520 ++this->ifunc_count_;
1521
1522 Reloc_section* rel = this->rela_ifunc(symtab, layout);
1523
1524 struct Local_ifunc li;
1525 li.rel = rel;
1526 li.object = relobj;
1527 li.local_sym_index = local_sym_index;
1528 li.plt_index = index;
1529 this->local_ifuncs_.push_back(li);
1530
1531 return plt_offset;
1532}
1533
1534// Emit any pending IFUNC plt relocations.
1535
1536template<int size, bool big_endian>
1537void
1538Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs()
1539{
1540 // Emit any pending IFUNC relocs.
1541 for (typename std::vector<Global_ifunc>::const_iterator p =
1542 this->global_ifuncs_.begin();
1543 p != this->global_ifuncs_.end();
1544 ++p)
1545 {
1546 section_offset_type plt_offset;
1547 unsigned int index;
1548
1549 index = this->count_ + p->plt_index + 4;
1550 plt_offset = this->plt_index_to_offset(index);
1551 p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL,
1552 this, plt_offset, 0);
1553 }
1554
1555 for (typename std::vector<Local_ifunc>::const_iterator p =
1556 this->local_ifuncs_.begin();
1557 p != this->local_ifuncs_.end();
1558 ++p)
1559 {
1560 section_offset_type plt_offset;
1561 unsigned int index;
1562
1563 index = this->count_ + p->plt_index + 4;
1564 plt_offset = this->plt_index_to_offset(index);
1565 p->rel->add_symbolless_local_addend(p->object, p->local_sym_index,
1566 elfcpp::R_SPARC_JMP_IREL,
1567 this, plt_offset, 0);
f5314dd5 1568 }
8c2bf391 1569}
f5314dd5 1570
8c2bf391
DM		 1571// Return where the IFUNC relocations should go in the PLT. These
1572// follow the non-IFUNC relocations.
f5314dd5 1573
8c2bf391
DM		 1574template<int size, bool big_endian>
1575typename Output_data_plt_sparc<size, big_endian>::Reloc_section*
1576Output_data_plt_sparc<size, big_endian>::rela_ifunc(
1577 Symbol_table* symtab,
1578 Layout* layout)
1579{
1580 if (this->ifunc_rel_ == NULL)
1581 {
1582 this->ifunc_rel_ = new Reloc_section(false);
1583 layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
1584 elfcpp::SHF_ALLOC, this->ifunc_rel_,
1585 ORDER_DYNAMIC_PLT_RELOCS, false);
1586 gold_assert(this->ifunc_rel_->output_section()
1587 == this->rel_->output_section());
1588
1589 if (parameters->doing_static_link())
1590 {
1591 // A statically linked executable will only have a .rel.plt
1592 // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL
1593 // relocs for STT_GNU_IFUNC symbols. The library will use
1594 // these symbols to locate the IRELATIVE and JMP_IREL relocs
1595 // at program startup time.
1596 symtab->define_in_output_data("__rela_iplt_start", NULL,
1597 Symbol_table::PREDEFINED,
1598 this->ifunc_rel_, 0, 0,
1599 elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
1600 elfcpp::STV_HIDDEN, 0, false, true);
1601 symtab->define_in_output_data("__rela_iplt_end", NULL,
1602 Symbol_table::PREDEFINED,
1603 this->ifunc_rel_, 0, 0,
1604 elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
1605 elfcpp::STV_HIDDEN, 0, true, true);
1606 }
1607 }
1608 return this->ifunc_rel_;
1609}
f5314dd5 1610
8c2bf391 1611// Return the PLT address to use for a global symbol.
f5314dd5 1612
8c2bf391
DM		 1613template<int size, bool big_endian>
1614uint64_t
1615Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym)
1616{
1617 uint64_t offset = 0;
1618 if (gsym->type() == elfcpp::STT_GNU_IFUNC
1619 && gsym->can_use_relative_reloc(false))
1620 offset = plt_index_to_offset(this->count_ + 4);
1621 return this->address() + offset;
1622}
1623
1624// Return the PLT address to use for a local symbol. These are always
1625// IRELATIVE relocs.
1626
1627template<int size, bool big_endian>
1628uint64_t
1629Output_data_plt_sparc<size, big_endian>::address_for_local(
1630 const Relobj*,
1631 unsigned int)
1632{
1633 return this->address() + plt_index_to_offset(this->count_ + 4);
f5314dd5
DM		 1634}
1635
1636static const unsigned int sparc_nop = 0x01000000;
1637static const unsigned int sparc_sethi_g1 = 0x03000000;
1638static const unsigned int sparc_branch_always = 0x30800000;
1639static const unsigned int sparc_branch_always_pt = 0x30680000;
1640static const unsigned int sparc_mov = 0x80100000;
1641static const unsigned int sparc_mov_g0_o0 = 0x90100000;
1642static const unsigned int sparc_mov_o7_g5 = 0x8a10000f;
1643static const unsigned int sparc_call_plus_8 = 0x40000002;
1644static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000;
1645static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001;
1646static const unsigned int sparc_mov_g5_o7 = 0x9e100005;
1647
1648// Write out the PLT.
1649
1650template<int size, bool big_endian>
1651void
1652Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of)
1653{
2ea97941 1654 const off_t offset = this->offset();
f5314dd5
DM		 1655 const section_size_type oview_size =
1656 convert_to_section_size_type(this->data_size());
2ea97941 1657 unsigned char* const oview = of->get_output_view(offset, oview_size);
f5314dd5
DM		 1658 unsigned char* pov = oview;
1659
1660 memset(pov, 0, base_plt_entry_size * 4);
8c2bf391 1661 pov += this->first_plt_entry_offset();
f5314dd5
DM		 1662
1663 unsigned int plt_offset = base_plt_entry_size * 4;
8c2bf391 1664 const unsigned int count = this->entry_count();
f5314dd5
DM		 1665
1666 if (size == 64)
1667 {
1668 unsigned int limit;
1669
1670 limit = (count > 32768 ? 32768 : count);
1671
1672 for (unsigned int i = 0; i < limit; ++i)
1673 {
1674 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1675 sparc_sethi_g1 + plt_offset);
1676 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1677 sparc_branch_always_pt +
1678 (((base_plt_entry_size -
1679 (plt_offset + 4)) >> 2) &
1680 0x7ffff));
1681 elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1682 elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop);
1683 elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop);
1684 elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop);
1685 elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop);
1686 elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop);
1687
1688 pov += base_plt_entry_size;
1689 plt_offset += base_plt_entry_size;
1690 }
1691
1692 if (count > 32768)
1693 {
1694 unsigned int ext_cnt = count - 32768;
1695 unsigned int blks = ext_cnt / plt_entries_per_block;
1696
1697 for (unsigned int i = 0; i < blks; ++i)
1698 {
1699 unsigned int data_off = (plt_entries_per_block
1700 * plt_insn_chunk_size) - 4;
1701
1702 for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1703 {
1704 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1705 sparc_mov_o7_g5);
1706 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1707 sparc_call_plus_8);
1708 elfcpp::Swap<32, true>::writeval(pov + 0x08,
1709 sparc_nop);
1710 elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1711 sparc_ldx_o7_imm_g1 +
1712 (data_off & 0x1fff));
1713 elfcpp::Swap<32, true>::writeval(pov + 0x10,
1714 sparc_jmpl_o7_g1_g1);
1715 elfcpp::Swap<32, true>::writeval(pov + 0x14,
1716 sparc_mov_g5_o7);
1717
1718 elfcpp::Swap<64, big_endian>::writeval(
1719 pov + 0x4 + data_off,
1720 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1721
1722 pov += plt_insn_chunk_size;
1723 data_off -= 16;
1724 }
1725 }
1726
1727 unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block;
1728 for (unsigned int i = 0; i < sub_blk_cnt; ++i)
1729 {
1730 unsigned int data_off = (sub_blk_cnt
1731 * plt_insn_chunk_size) - 4;
1732
1733 for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1734 {
1735 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1736 sparc_mov_o7_g5);
1737 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1738 sparc_call_plus_8);
1739 elfcpp::Swap<32, true>::writeval(pov + 0x08,
1740 sparc_nop);
1741 elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1742 sparc_ldx_o7_imm_g1 +
1743 (data_off & 0x1fff));
1744 elfcpp::Swap<32, true>::writeval(pov + 0x10,
1745 sparc_jmpl_o7_g1_g1);
1746 elfcpp::Swap<32, true>::writeval(pov + 0x14,
1747 sparc_mov_g5_o7);
1748
1749 elfcpp::Swap<64, big_endian>::writeval(
1750 pov + 0x4 + data_off,
1751 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1752
1753 pov += plt_insn_chunk_size;
1754 data_off -= 16;
1755 }
1756 }
1757 }
1758 }
1759 else
1760 {
1761 for (unsigned int i = 0; i < count; ++i)
1762 {
1763 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1764 sparc_sethi_g1 + plt_offset);
1765 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1766 sparc_branch_always +
1767 (((- (plt_offset + 4)) >> 2) &
1768 0x003fffff));
1769 elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1770
1771 pov += base_plt_entry_size;
1772 plt_offset += base_plt_entry_size;
1773 }
1774
1775 elfcpp::Swap<32, true>::writeval(pov, sparc_nop);
1776 pov += 4;
1777 }
1778
1779 gold_assert(static_cast<section_size_type>(pov - oview) == oview_size);
1780
2ea97941 1781 of->write_output_view(offset, oview_size, oview);
f5314dd5
DM		 1782}
1783
8c2bf391
DM		 1784// Create the PLT section.
1785
1786template<int size, bool big_endian>
1787void
1788Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab,
1789 Layout* layout)
1790{
1791 // Create the GOT sections first.
1792 this->got_section(symtab, layout);
1793
1794 // Ensure that .rela.dyn always appears before .rela.plt This is
1795 // necessary due to how, on Sparc and some other targets, .rela.dyn
1796 // needs to include .rela.plt in it's range.
1797 this->rela_dyn_section(layout);
1798
1799 this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout);
1800 layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS,
1801 (elfcpp::SHF_ALLOC
1802 | elfcpp::SHF_EXECINSTR
1803 | elfcpp::SHF_WRITE),
1804 this->plt_, ORDER_NON_RELRO_FIRST, false);
1805
1806 // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section.
1807 symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL,
1808 Symbol_table::PREDEFINED,
1809 this->plt_,
1810 0, 0, elfcpp::STT_OBJECT,
1811 elfcpp::STB_LOCAL,
1812 elfcpp::STV_HIDDEN, 0,
1813 false, false);
1814}
1815
f5314dd5
DM		 1816// Create a PLT entry for a global symbol.
1817
1818template<int size, bool big_endian>
1819void
1820Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab,
1821 Layout* layout,
1822 Symbol* gsym)
1823{
1824 if (gsym->has_plt_offset())
1825 return;
1826
1827 if (this->plt_ == NULL)
8c2bf391 1828 this->make_plt_section(symtab, layout);
f5314dd5 1829
8c2bf391
DM		 1830 this->plt_->add_entry(symtab, layout, gsym);
1831}
f5314dd5 1832
8c2bf391 1833// Make a PLT entry for a local STT_GNU_IFUNC symbol.
f5314dd5 1834
8c2bf391
DM		 1835template<int size, bool big_endian>
1836void
1837Target_sparc<size, big_endian>::make_local_ifunc_plt_entry(
1838 Symbol_table* symtab,
1839 Layout* layout,
1840 Sized_relobj_file<size, big_endian>* relobj,
1841 unsigned int local_sym_index)
1842{
1843 if (relobj->local_has_plt_offset(local_sym_index))
1844 return;
1845 if (this->plt_ == NULL)
1846 this->make_plt_section(symtab, layout);
1847 unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout,
1848 relobj,
1849 local_sym_index);
1850 relobj->set_local_plt_offset(local_sym_index, plt_offset);
f5314dd5
DM		 1851}
1852
0e70b911
CC		 1853// Return the number of entries in the PLT.
1854
1855template<int size, bool big_endian>
1856unsigned int
1857Target_sparc<size, big_endian>::plt_entry_count() const
1858{
1859 if (this->plt_ == NULL)
1860 return 0;
1861 return this->plt_->entry_count();
1862}
1863
1864// Return the offset of the first non-reserved PLT entry.
1865
1866template<int size, bool big_endian>
1867unsigned int
1868Target_sparc<size, big_endian>::first_plt_entry_offset() const
1869{
1870 return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset();
1871}
1872
1873// Return the size of each PLT entry.
1874
1875template<int size, bool big_endian>
1876unsigned int
1877Target_sparc<size, big_endian>::plt_entry_size() const
1878{
1879 return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size();
1880}
1881
f5314dd5
DM		 1882// Create a GOT entry for the TLS module index.
1883
1884template<int size, bool big_endian>
1885unsigned int
6fa2a40b
CC		 1886Target_sparc<size, big_endian>::got_mod_index_entry(
1887 Symbol_table* symtab,
1888 Layout* layout,
1889 Sized_relobj_file<size, big_endian>* object)
f5314dd5
DM		 1890{
1891 if (this->got_mod_index_offset_ == -1U)
1892 {
1893 gold_assert(symtab != NULL && layout != NULL && object != NULL);
1894 Reloc_section* rela_dyn = this->rela_dyn_section(layout);
1895 Output_data_got<size, big_endian>* got;
1896 unsigned int got_offset;
1897
1898 got = this->got_section(symtab, layout);
1899 got_offset = got->add_constant(0);
1900 rela_dyn->add_local(object, 0,
1901 (size == 64 ?
1902 elfcpp::R_SPARC_TLS_DTPMOD64 :
1903 elfcpp::R_SPARC_TLS_DTPMOD32), got,
1904 got_offset, 0);
1905 got->add_constant(0);
1906 this->got_mod_index_offset_ = got_offset;
1907 }
1908 return this->got_mod_index_offset_;
1909}
1910
f5314dd5
DM		 1911// Optimize the TLS relocation type based on what we know about the
1912// symbol. IS_FINAL is true if the final address of this symbol is
1913// known at link time.
1914
1915static tls::Tls_optimization
1916optimize_tls_reloc(bool is_final, int r_type)
1917{
1918 // If we are generating a shared library, then we can't do anything
1919 // in the linker.
1920 if (parameters->options().shared())
1921 return tls::TLSOPT_NONE;
1922
1923 switch (r_type)
1924 {
1925 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
1926 case elfcpp::R_SPARC_TLS_GD_LO10:
1927 case elfcpp::R_SPARC_TLS_GD_ADD:
1928 case elfcpp::R_SPARC_TLS_GD_CALL:
1929 // These are General-Dynamic which permits fully general TLS
1930 // access. Since we know that we are generating an executable,
1931 // we can convert this to Initial-Exec. If we also know that
1932 // this is a local symbol, we can further switch to Local-Exec.
1933 if (is_final)
1934 return tls::TLSOPT_TO_LE;
1935 return tls::TLSOPT_TO_IE;
1936
1937 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
1938 case elfcpp::R_SPARC_TLS_LDM_LO10:
1939 case elfcpp::R_SPARC_TLS_LDM_ADD:
1940 case elfcpp::R_SPARC_TLS_LDM_CALL:
1941 // This is Local-Dynamic, which refers to a local symbol in the
1942 // dynamic TLS block. Since we know that we generating an
1943 // executable, we can switch to Local-Exec.
1944 return tls::TLSOPT_TO_LE;
1945
1946 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
1947 case elfcpp::R_SPARC_TLS_LDO_LOX10:
1948 case elfcpp::R_SPARC_TLS_LDO_ADD:
1949 // Another type of Local-Dynamic relocation.
1950 return tls::TLSOPT_TO_LE;
1951
1952 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
1953 case elfcpp::R_SPARC_TLS_IE_LO10:
1954 case elfcpp::R_SPARC_TLS_IE_LD:
1955 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 1956 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 1957 // These are Initial-Exec relocs which get the thread offset
1958 // from the GOT. If we know that we are linking against the
1959 // local symbol, we can switch to Local-Exec, which links the
1960 // thread offset into the instruction.
1961 if (is_final)
1962 return tls::TLSOPT_TO_LE;
1963 return tls::TLSOPT_NONE;
1964
1965 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
1966 case elfcpp::R_SPARC_TLS_LE_LOX10:
1967 // When we already have Local-Exec, there is nothing further we
1968 // can do.
1969 return tls::TLSOPT_NONE;
1970
1971 default:
1972 gold_unreachable();
1973 }
1974}
1975
95a2c8d6
RS		 1976// Get the Reference_flags for a particular relocation.
1977
1978template<int size, bool big_endian>
1979int
1980Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type)
1981{
1982 r_type &= 0xff;
1983 switch (r_type)
1984 {
1985 case elfcpp::R_SPARC_NONE:
1986 case elfcpp::R_SPARC_REGISTER:
1987 case elfcpp::R_SPARC_GNU_VTINHERIT:
1988 case elfcpp::R_SPARC_GNU_VTENTRY:
1989 // No symbol reference.
1990 return 0;
1991
1992 case elfcpp::R_SPARC_UA64:
1993 case elfcpp::R_SPARC_64:
1994 case elfcpp::R_SPARC_HIX22:
1995 case elfcpp::R_SPARC_LOX10:
2615994e 1996 case elfcpp::R_SPARC_H34:
95a2c8d6
RS		 1997 case elfcpp::R_SPARC_H44:
1998 case elfcpp::R_SPARC_M44:
1999 case elfcpp::R_SPARC_L44:
2000 case elfcpp::R_SPARC_HH22:
2001 case elfcpp::R_SPARC_HM10:
2002 case elfcpp::R_SPARC_LM22:
2003 case elfcpp::R_SPARC_HI22:
2004 case elfcpp::R_SPARC_LO10:
2005 case elfcpp::R_SPARC_OLO10:
2006 case elfcpp::R_SPARC_UA32:
2007 case elfcpp::R_SPARC_32:
2008 case elfcpp::R_SPARC_UA16:
2009 case elfcpp::R_SPARC_16:
2010 case elfcpp::R_SPARC_11:
2011 case elfcpp::R_SPARC_10:
2012 case elfcpp::R_SPARC_8:
2013 case elfcpp::R_SPARC_7:
2014 case elfcpp::R_SPARC_6:
2015 case elfcpp::R_SPARC_5:
2016 return Symbol::ABSOLUTE_REF;
2017
2018 case elfcpp::R_SPARC_DISP8:
2019 case elfcpp::R_SPARC_DISP16:
2020 case elfcpp::R_SPARC_DISP32:
2021 case elfcpp::R_SPARC_DISP64:
2022 case elfcpp::R_SPARC_PC_HH22:
2023 case elfcpp::R_SPARC_PC_HM10:
2024 case elfcpp::R_SPARC_PC_LM22:
2025 case elfcpp::R_SPARC_PC10:
2026 case elfcpp::R_SPARC_PC22:
2027 case elfcpp::R_SPARC_WDISP30:
2028 case elfcpp::R_SPARC_WDISP22:
2029 case elfcpp::R_SPARC_WDISP19:
2030 case elfcpp::R_SPARC_WDISP16:
2615994e 2031 case elfcpp::R_SPARC_WDISP10:
95a2c8d6
RS		 2032 return Symbol::RELATIVE_REF;
2033
2034 case elfcpp::R_SPARC_PLT64:
2035 case elfcpp::R_SPARC_PLT32:
2036 case elfcpp::R_SPARC_HIPLT22:
2037 case elfcpp::R_SPARC_LOPLT10:
2038 case elfcpp::R_SPARC_PCPLT10:
2039 return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF;
2040
2041 case elfcpp::R_SPARC_PCPLT32:
2042 case elfcpp::R_SPARC_PCPLT22:
2043 case elfcpp::R_SPARC_WPLT30:
2044 return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
2045
2046 case elfcpp::R_SPARC_GOTDATA_OP:
2047 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2048 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2049 case elfcpp::R_SPARC_GOT10:
2050 case elfcpp::R_SPARC_GOT13:
2051 case elfcpp::R_SPARC_GOT22:
2052 // Absolute in GOT.
2053 return Symbol::ABSOLUTE_REF;
2054
2055 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2056 case elfcpp::R_SPARC_TLS_GD_LO10:
2057 case elfcpp::R_SPARC_TLS_GD_ADD:
2058 case elfcpp::R_SPARC_TLS_GD_CALL:
2059 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2060 case elfcpp::R_SPARC_TLS_LDM_LO10:
2061 case elfcpp::R_SPARC_TLS_LDM_ADD:
2062 case elfcpp::R_SPARC_TLS_LDM_CALL:
2063 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2064 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2065 case elfcpp::R_SPARC_TLS_LDO_ADD:
2066 case elfcpp::R_SPARC_TLS_LE_HIX22:
2067 case elfcpp::R_SPARC_TLS_LE_LOX10:
2068 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2069 case elfcpp::R_SPARC_TLS_IE_LO10:
2070 case elfcpp::R_SPARC_TLS_IE_LD:
2071 case elfcpp::R_SPARC_TLS_IE_LDX:
2072 case elfcpp::R_SPARC_TLS_IE_ADD:
2073 return Symbol::TLS_REF;
2074
2075 case elfcpp::R_SPARC_COPY:
2076 case elfcpp::R_SPARC_GLOB_DAT:
2077 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2078 case elfcpp::R_SPARC_JMP_IREL:
95a2c8d6 2079 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2080 case elfcpp::R_SPARC_IRELATIVE:
95a2c8d6
RS		 2081 case elfcpp::R_SPARC_TLS_DTPMOD64:
2082 case elfcpp::R_SPARC_TLS_DTPMOD32:
2083 case elfcpp::R_SPARC_TLS_DTPOFF64:
2084 case elfcpp::R_SPARC_TLS_DTPOFF32:
2085 case elfcpp::R_SPARC_TLS_TPOFF64:
2086 case elfcpp::R_SPARC_TLS_TPOFF32:
2087 default:
2088 // Not expected. We will give an error later.
2089 return 0;
2090 }
2091}
2092
f5314dd5
DM		 2093// Generate a PLT entry slot for a call to __tls_get_addr
2094template<int size, bool big_endian>
2095void
2096Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab,
2097 Layout* layout,
2098 Target_sparc<size, big_endian>* target)
2099{
2100 Symbol* gsym = target->tls_get_addr_sym(symtab);
2101
2102 target->make_plt_entry(symtab, layout, gsym);
2103}
2104
2105// Report an unsupported relocation against a local symbol.
2106
2107template<int size, bool big_endian>
2108void
2109Target_sparc<size, big_endian>::Scan::unsupported_reloc_local(
6fa2a40b 2110 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2111 unsigned int r_type)
2112{
2113 gold_error(_("%s: unsupported reloc %u against local symbol"),
2114 object->name().c_str(), r_type);
2115}
2116
32b769e1
DM		 2117// We are about to emit a dynamic relocation of type R_TYPE. If the
2118// dynamic linker does not support it, issue an error.
2119
2120template<int size, bool big_endian>
2121void
2122Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type)
2123{
2124 gold_assert(r_type != elfcpp::R_SPARC_NONE);
2125
2126 if (size == 64)
2127 {
2128 switch (r_type)
2129 {
2130 // These are the relocation types supported by glibc for sparc 64-bit.
2131 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2132 case elfcpp::R_SPARC_IRELATIVE:
32b769e1
DM		 2133 case elfcpp::R_SPARC_COPY:
2134 case elfcpp::R_SPARC_64:
2135 case elfcpp::R_SPARC_GLOB_DAT:
2136 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2137 case elfcpp::R_SPARC_JMP_IREL:
32b769e1
DM		 2138 case elfcpp::R_SPARC_TLS_DTPMOD64:
2139 case elfcpp::R_SPARC_TLS_DTPOFF64:
2140 case elfcpp::R_SPARC_TLS_TPOFF64:
2141 case elfcpp::R_SPARC_TLS_LE_HIX22:
2142 case elfcpp::R_SPARC_TLS_LE_LOX10:
2143 case elfcpp::R_SPARC_8:
2144 case elfcpp::R_SPARC_16:
2145 case elfcpp::R_SPARC_DISP8:
2146 case elfcpp::R_SPARC_DISP16:
2147 case elfcpp::R_SPARC_DISP32:
2148 case elfcpp::R_SPARC_WDISP30:
2149 case elfcpp::R_SPARC_LO10:
2150 case elfcpp::R_SPARC_HI22:
2151 case elfcpp::R_SPARC_OLO10:
2615994e 2152 case elfcpp::R_SPARC_H34:
32b769e1
DM		 2153 case elfcpp::R_SPARC_H44:
2154 case elfcpp::R_SPARC_M44:
2155 case elfcpp::R_SPARC_L44:
2156 case elfcpp::R_SPARC_HH22:
2157 case elfcpp::R_SPARC_HM10:
2158 case elfcpp::R_SPARC_LM22:
2159 case elfcpp::R_SPARC_UA16:
2160 case elfcpp::R_SPARC_UA32:
2161 case elfcpp::R_SPARC_UA64:
2162 return;
2163
2164 default:
2165 break;
2166 }
2167 }
2168 else
2169 {
2170 switch (r_type)
2171 {
2172 // These are the relocation types supported by glibc for sparc 32-bit.
2173 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2174 case elfcpp::R_SPARC_IRELATIVE:
32b769e1
DM		 2175 case elfcpp::R_SPARC_COPY:
2176 case elfcpp::R_SPARC_GLOB_DAT:
2177 case elfcpp::R_SPARC_32:
2178 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2179 case elfcpp::R_SPARC_JMP_IREL:
32b769e1
DM		 2180 case elfcpp::R_SPARC_TLS_DTPMOD32:
2181 case elfcpp::R_SPARC_TLS_DTPOFF32:
2182 case elfcpp::R_SPARC_TLS_TPOFF32:
2183 case elfcpp::R_SPARC_TLS_LE_HIX22:
2184 case elfcpp::R_SPARC_TLS_LE_LOX10:
2185 case elfcpp::R_SPARC_8:
2186 case elfcpp::R_SPARC_16:
2187 case elfcpp::R_SPARC_DISP8:
2188 case elfcpp::R_SPARC_DISP16:
2189 case elfcpp::R_SPARC_DISP32:
2190 case elfcpp::R_SPARC_LO10:
2191 case elfcpp::R_SPARC_WDISP30:
2192 case elfcpp::R_SPARC_HI22:
2193 case elfcpp::R_SPARC_UA16:
2194 case elfcpp::R_SPARC_UA32:
2195 return;
2196
2197 default:
2198 break;
2199 }
2200 }
2201
2202 // This prevents us from issuing more than one error per reloc
2203 // section. But we can still wind up issuing more than one
2204 // error per object file.
2205 if (this->issued_non_pic_error_)
2206 return;
33aea2fd 2207 gold_assert(parameters->options().output_is_position_independent());
32b769e1
DM		 2208 object->error(_("requires unsupported dynamic reloc; "
2209 "recompile with -fPIC"));
2210 this->issued_non_pic_error_ = true;
2211 return;
2212}
2213
8c2bf391
DM		 2214// Return whether we need to make a PLT entry for a relocation of the
2215// given type against a STT_GNU_IFUNC symbol.
2216
2217template<int size, bool big_endian>
2218bool
2219Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc(
2220 Sized_relobj_file<size, big_endian>* object,
2221 unsigned int r_type)
2222{
2223 int flags = Scan::get_reference_flags(r_type);
2224 if (flags & Symbol::TLS_REF)
2225 gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"),
2e702c99 2226 object->name().c_str(), r_type);
8c2bf391
DM		 2227 return flags != 0;
2228}
2229
f5314dd5
DM		 2230// Scan a relocation for a local symbol.
2231
2232template<int size, bool big_endian>
2233inline void
2234Target_sparc<size, big_endian>::Scan::local(
f5314dd5
DM		 2235 Symbol_table* symtab,
2236 Layout* layout,
2237 Target_sparc<size, big_endian>* target,
6fa2a40b 2238 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2239 unsigned int data_shndx,
2240 Output_section* output_section,
2241 const elfcpp::Rela<size, big_endian>& reloc,
2242 unsigned int r_type,
2243 const elfcpp::Sym<size, big_endian>& lsym)
2244{
8c2bf391 2245 bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC;
f5314dd5 2246 unsigned int orig_r_type = r_type;
f5314dd5 2247 r_type &= 0xff;
8c2bf391
DM		 2248
2249 if (is_ifunc
2250 && this->reloc_needs_plt_for_ifunc(object, r_type))
2251 {
2252 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2253 target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym);
2254 }
2255
f5314dd5
DM		 2256 switch (r_type)
2257 {
2258 case elfcpp::R_SPARC_NONE:
2259 case elfcpp::R_SPARC_REGISTER:
2260 case elfcpp::R_SPARC_GNU_VTINHERIT:
2261 case elfcpp::R_SPARC_GNU_VTENTRY:
2262 break;
2263
2264 case elfcpp::R_SPARC_64:
2265 case elfcpp::R_SPARC_32:
2266 // If building a shared library (or a position-independent
2267 // executable), we need to create a dynamic relocation for
2268 // this location. The relocation applied at link time will
2269 // apply the link-time value, so we flag the location with
2270 // an R_SPARC_RELATIVE relocation so the dynamic loader can
2271 // relocate it easily.
2272 if (parameters->options().output_is_position_independent())
2e702c99
RM		 2273 {
2274 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2275 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2276 rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE,
f5314dd5
DM		 2277 output_section, data_shndx,
2278 reloc.get_r_offset(),
8c2bf391 2279 reloc.get_r_addend(), is_ifunc);
2e702c99 2280 }
f5314dd5
DM		 2281 break;
2282
2283 case elfcpp::R_SPARC_HIX22:
2284 case elfcpp::R_SPARC_LOX10:
2615994e 2285 case elfcpp::R_SPARC_H34:
f5314dd5
DM		 2286 case elfcpp::R_SPARC_H44:
2287 case elfcpp::R_SPARC_M44:
2288 case elfcpp::R_SPARC_L44:
2289 case elfcpp::R_SPARC_HH22:
2290 case elfcpp::R_SPARC_HM10:
2291 case elfcpp::R_SPARC_LM22:
2292 case elfcpp::R_SPARC_UA64:
2293 case elfcpp::R_SPARC_UA32:
2294 case elfcpp::R_SPARC_UA16:
2295 case elfcpp::R_SPARC_HI22:
2296 case elfcpp::R_SPARC_LO10:
2297 case elfcpp::R_SPARC_OLO10:
2298 case elfcpp::R_SPARC_16:
2299 case elfcpp::R_SPARC_11:
2300 case elfcpp::R_SPARC_10:
2301 case elfcpp::R_SPARC_8:
2302 case elfcpp::R_SPARC_7:
2303 case elfcpp::R_SPARC_6:
2304 case elfcpp::R_SPARC_5:
2305 // If building a shared library (or a position-independent
2306 // executable), we need to create a dynamic relocation for
2307 // this location.
2308 if (parameters->options().output_is_position_independent())
2e702c99
RM		 2309 {
2310 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2311 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
32b769e1
DM		 2312
2313 check_non_pic(object, r_type);
2e702c99
RM		 2314 if (lsym.get_st_type() != elfcpp::STT_SECTION)
2315 {
2316 rela_dyn->add_local(object, r_sym, orig_r_type, output_section,
f5314dd5
DM		 2317 data_shndx, reloc.get_r_offset(),
2318 reloc.get_r_addend());
2e702c99
RM		 2319 }
2320 else
2321 {
2322 gold_assert(lsym.get_st_value() == 0);
0da6fa6c
DM		 2323 rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type,
2324 output_section, data_shndx,
2325 reloc.get_r_offset(),
2326 reloc.get_r_addend());
2e702c99
RM		 2327 }
2328 }
f5314dd5
DM		 2329 break;
2330
2331 case elfcpp::R_SPARC_WDISP30:
8861f32b 2332 case elfcpp::R_SPARC_WPLT30:
f5314dd5
DM		 2333 case elfcpp::R_SPARC_WDISP22:
2334 case elfcpp::R_SPARC_WDISP19:
2335 case elfcpp::R_SPARC_WDISP16:
2615994e 2336 case elfcpp::R_SPARC_WDISP10:
f5314dd5
DM		 2337 case elfcpp::R_SPARC_DISP8:
2338 case elfcpp::R_SPARC_DISP16:
2339 case elfcpp::R_SPARC_DISP32:
2340 case elfcpp::R_SPARC_DISP64:
2341 case elfcpp::R_SPARC_PC10:
2342 case elfcpp::R_SPARC_PC22:
2343 break;
2344
024c4466
DM		 2345 case elfcpp::R_SPARC_GOTDATA_OP:
2346 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2347 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 2348 // We will optimize this into a GOT relative relocation
2349 // and code transform the GOT load into an addition.
2350 break;
2351
f5314dd5
DM		 2352 case elfcpp::R_SPARC_GOT10:
2353 case elfcpp::R_SPARC_GOT13:
2354 case elfcpp::R_SPARC_GOT22:
2355 {
2e702c99
RM		 2356 // The symbol requires a GOT entry.
2357 Output_data_got<size, big_endian>* got;
2358 unsigned int r_sym;
f5314dd5
DM		 2359
2360 got = target->got_section(symtab, layout);
2361 r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2362
2363 // If we are generating a shared object, we need to add a
2364 // dynamic relocation for this symbol's GOT entry.
2365 if (parameters->options().output_is_position_independent())
2366 {
2367 if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD))
2368 {
2369 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
8c2bf391 2370 unsigned int off = got->add_constant(0);
f5314dd5
DM		 2371 object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off);
2372 rela_dyn->add_local_relative(object, r_sym,
2373 elfcpp::R_SPARC_RELATIVE,
8c2bf391 2374 got, off, 0, is_ifunc);
f5314dd5
DM		 2375 }
2376 }
2377 else
2378 got->add_local(object, r_sym, GOT_TYPE_STANDARD);
2379 }
2380 break;
2381
2382 // These are initial TLS relocs, which are expected when
2383 // linking.
2384 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2385 case elfcpp::R_SPARC_TLS_GD_LO10:
2386 case elfcpp::R_SPARC_TLS_GD_ADD:
2387 case elfcpp::R_SPARC_TLS_GD_CALL:
2388 case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic
2389 case elfcpp::R_SPARC_TLS_LDM_LO10:
2390 case elfcpp::R_SPARC_TLS_LDM_ADD:
2391 case elfcpp::R_SPARC_TLS_LDM_CALL:
2392 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2393 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2394 case elfcpp::R_SPARC_TLS_LDO_ADD:
2395 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2396 case elfcpp::R_SPARC_TLS_IE_LO10:
2397 case elfcpp::R_SPARC_TLS_IE_LD:
2398 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2399 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2400 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
2401 case elfcpp::R_SPARC_TLS_LE_LOX10:
2402 {
2403 bool output_is_shared = parameters->options().shared();
2404 const tls::Tls_optimization optimized_type
2e702c99 2405 = optimize_tls_reloc(!output_is_shared, r_type);
f5314dd5
DM		 2406 switch (r_type)
2407 {
2408 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2409 case elfcpp::R_SPARC_TLS_GD_LO10:
2410 case elfcpp::R_SPARC_TLS_GD_ADD:
2411 case elfcpp::R_SPARC_TLS_GD_CALL:
2412 if (optimized_type == tls::TLSOPT_NONE)
2413 {
2e702c99
RM		 2414 // Create a pair of GOT entries for the module index and
2415 // dtv-relative offset.
2416 Output_data_got<size, big_endian>* got
2417 = target->got_section(symtab, layout);
2418 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
d491d34e
ILT		 2419 unsigned int shndx = lsym.get_st_shndx();
2420 bool is_ordinary;
2421 shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary);
2422 if (!is_ordinary)
2423 object->error(_("local symbol %u has bad shndx %u"),
2424 r_sym, shndx);
2425 else
2e702c99 2426 got->add_local_pair_with_rel(object, r_sym,
83896202
ILT		 2427 lsym.get_st_shndx(),
2428 GOT_TYPE_TLS_PAIR,
2429 target->rela_dyn_section(layout),
2430 (size == 64
2431 ? elfcpp::R_SPARC_TLS_DTPMOD64
2432 : elfcpp::R_SPARC_TLS_DTPMOD32),
2433 0);
f5314dd5
DM		 2434 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
2435 generate_tls_call(symtab, layout, target);
2436 }
2437 else if (optimized_type != tls::TLSOPT_TO_LE)
2438 unsupported_reloc_local(object, r_type);
2439 break;
2440
2441 case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic
2442 case elfcpp::R_SPARC_TLS_LDM_LO10:
2443 case elfcpp::R_SPARC_TLS_LDM_ADD:
2444 case elfcpp::R_SPARC_TLS_LDM_CALL:
2445 if (optimized_type == tls::TLSOPT_NONE)
2446 {
2447 // Create a GOT entry for the module index.
2448 target->got_mod_index_entry(symtab, layout, object);
2449
2450 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
2451 generate_tls_call(symtab, layout, target);
2452 }
2453 else if (optimized_type != tls::TLSOPT_TO_LE)
2454 unsupported_reloc_local(object, r_type);
2455 break;
2456
2457 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2458 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2459 case elfcpp::R_SPARC_TLS_LDO_ADD:
2460 break;
2461
2462 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2463 case elfcpp::R_SPARC_TLS_IE_LO10:
2464 case elfcpp::R_SPARC_TLS_IE_LD:
2465 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2466 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2467 layout->set_has_static_tls();
2468 if (optimized_type == tls::TLSOPT_NONE)
2469 {
2470 // Create a GOT entry for the tp-relative offset.
2471 Output_data_got<size, big_endian>* got
2472 = target->got_section(symtab, layout);
2473 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2474
2475 if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET))
2476 {
2477 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
0da6fa6c
DM		 2478 unsigned int off = got->add_constant(0);
2479
2480 object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off);
684b268a 2481
0da6fa6c
DM		 2482 rela_dyn->add_symbolless_local_addend(object, r_sym,
2483 (size == 64 ?
2484 elfcpp::R_SPARC_TLS_TPOFF64 :
2485 elfcpp::R_SPARC_TLS_TPOFF32),
2486 got, off, 0);
f5314dd5
DM		 2487 }
2488 }
2489 else if (optimized_type != tls::TLSOPT_TO_LE)
2490 unsupported_reloc_local(object, r_type);
2491 break;
2492
2493 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
2494 case elfcpp::R_SPARC_TLS_LE_LOX10:
2495 layout->set_has_static_tls();
2496 if (output_is_shared)
2497 {
2e702c99
RM		 2498 // We need to create a dynamic relocation.
2499 gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION);
2500 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2501 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2502 rela_dyn->add_symbolless_local_addend(object, r_sym, r_type,
0da6fa6c
DM		 2503 output_section, data_shndx,
2504 reloc.get_r_offset(), 0);
f5314dd5
DM		 2505 }
2506 break;
2507 }
2508 }
2509 break;
2510
2511 // These are relocations which should only be seen by the
2512 // dynamic linker, and should never be seen here.
2513 case elfcpp::R_SPARC_COPY:
2514 case elfcpp::R_SPARC_GLOB_DAT:
2515 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2516 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 2517 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2518 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 2519 case elfcpp::R_SPARC_TLS_DTPMOD64:
2520 case elfcpp::R_SPARC_TLS_DTPMOD32:
2521 case elfcpp::R_SPARC_TLS_DTPOFF64:
2522 case elfcpp::R_SPARC_TLS_DTPOFF32:
2523 case elfcpp::R_SPARC_TLS_TPOFF64:
2524 case elfcpp::R_SPARC_TLS_TPOFF32:
2525 gold_error(_("%s: unexpected reloc %u in object file"),
2526 object->name().c_str(), r_type);
2527 break;
2528
2529 default:
2530 unsupported_reloc_local(object, r_type);
2531 break;
2532 }
2533}
2534
2535// Report an unsupported relocation against a global symbol.
2536
2537template<int size, bool big_endian>
2538void
2539Target_sparc<size, big_endian>::Scan::unsupported_reloc_global(
6fa2a40b 2540 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2541 unsigned int r_type,
2542 Symbol* gsym)
2543{
2544 gold_error(_("%s: unsupported reloc %u against global symbol %s"),
2545 object->name().c_str(), r_type, gsym->demangled_name().c_str());
2546}
2547
2548// Scan a relocation for a global symbol.
2549
2550template<int size, bool big_endian>
2551inline void
2552Target_sparc<size, big_endian>::Scan::global(
f5314dd5
DM		 2553 Symbol_table* symtab,
2554 Layout* layout,
2555 Target_sparc<size, big_endian>* target,
6fa2a40b 2556 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2557 unsigned int data_shndx,
2558 Output_section* output_section,
2559 const elfcpp::Rela<size, big_endian>& reloc,
2560 unsigned int r_type,
2561 Symbol* gsym)
2562{
2563 unsigned int orig_r_type = r_type;
8c2bf391 2564 bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC;
f5314dd5 2565
9efe6174
ILT		 2566 // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got
2567 // section. We check here to avoid creating a dynamic reloc against
2568 // _GLOBAL_OFFSET_TABLE_.
2569 if (!target->has_got_section()
2570 && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
2571 target->got_section(symtab, layout);
2572
f5314dd5 2573 r_type &= 0xff;
8c2bf391
DM		 2574
2575 // A STT_GNU_IFUNC symbol may require a PLT entry.
2576 if (is_ifunc
2577 && this->reloc_needs_plt_for_ifunc(object, r_type))
2578 target->make_plt_entry(symtab, layout, gsym);
2579
f5314dd5
DM		 2580 switch (r_type)
2581 {
2582 case elfcpp::R_SPARC_NONE:
2583 case elfcpp::R_SPARC_REGISTER:
2584 case elfcpp::R_SPARC_GNU_VTINHERIT:
2585 case elfcpp::R_SPARC_GNU_VTENTRY:
2586 break;
2587
2588 case elfcpp::R_SPARC_PLT64:
2589 case elfcpp::R_SPARC_PLT32:
2590 case elfcpp::R_SPARC_HIPLT22:
2591 case elfcpp::R_SPARC_LOPLT10:
2592 case elfcpp::R_SPARC_PCPLT32:
2593 case elfcpp::R_SPARC_PCPLT22:
2594 case elfcpp::R_SPARC_PCPLT10:
2595 case elfcpp::R_SPARC_WPLT30:
2596 // If the symbol is fully resolved, this is just a PC32 reloc.
2597 // Otherwise we need a PLT entry.
2598 if (gsym->final_value_is_known())
2599 break;
2600 // If building a shared library, we can also skip the PLT entry
2601 // if the symbol is defined in the output file and is protected
2602 // or hidden.
2603 if (gsym->is_defined()
2e702c99
RM		 2604 && !gsym->is_from_dynobj()
2605 && !gsym->is_preemptible())
f5314dd5
DM		 2606 break;
2607 target->make_plt_entry(symtab, layout, gsym);
2608 break;
2609
2610 case elfcpp::R_SPARC_DISP8:
2611 case elfcpp::R_SPARC_DISP16:
2612 case elfcpp::R_SPARC_DISP32:
2613 case elfcpp::R_SPARC_DISP64:
2614 case elfcpp::R_SPARC_PC_HH22:
2615 case elfcpp::R_SPARC_PC_HM10:
2616 case elfcpp::R_SPARC_PC_LM22:
2617 case elfcpp::R_SPARC_PC10:
2618 case elfcpp::R_SPARC_PC22:
2619 case elfcpp::R_SPARC_WDISP30:
2620 case elfcpp::R_SPARC_WDISP22:
2621 case elfcpp::R_SPARC_WDISP19:
2622 case elfcpp::R_SPARC_WDISP16:
2615994e 2623 case elfcpp::R_SPARC_WDISP10:
f5314dd5
DM		 2624 {
2625 if (gsym->needs_plt_entry())
2626 target->make_plt_entry(symtab, layout, gsym);
2627 // Make a dynamic relocation if necessary.
95a2c8d6 2628 if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
f5314dd5 2629 {
966d4097 2630 if (gsym->may_need_copy_reloc())
f5314dd5 2631 {
12c0daef 2632 target->copy_reloc(symtab, layout, object,
f5314dd5
DM		 2633 data_shndx, output_section, gsym,
2634 reloc);
2635 }
2636 else
2637 {
2638 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
32b769e1 2639 check_non_pic(object, r_type);
f5314dd5
DM		 2640 rela_dyn->add_global(gsym, orig_r_type, output_section, object,
2641 data_shndx, reloc.get_r_offset(),
2642 reloc.get_r_addend());
2643 }
2644 }
2645 }
2646 break;
2647
2648 case elfcpp::R_SPARC_UA64:
2649 case elfcpp::R_SPARC_64:
2650 case elfcpp::R_SPARC_HIX22:
2651 case elfcpp::R_SPARC_LOX10:
2615994e 2652 case elfcpp::R_SPARC_H34:
f5314dd5
DM		 2653 case elfcpp::R_SPARC_H44:
2654 case elfcpp::R_SPARC_M44:
2655 case elfcpp::R_SPARC_L44:
2656 case elfcpp::R_SPARC_HH22:
2657 case elfcpp::R_SPARC_HM10:
2658 case elfcpp::R_SPARC_LM22:
2659 case elfcpp::R_SPARC_HI22:
2660 case elfcpp::R_SPARC_LO10:
2661 case elfcpp::R_SPARC_OLO10:
2662 case elfcpp::R_SPARC_UA32:
2663 case elfcpp::R_SPARC_32:
2664 case elfcpp::R_SPARC_UA16:
2665 case elfcpp::R_SPARC_16:
2666 case elfcpp::R_SPARC_11:
2667 case elfcpp::R_SPARC_10:
2668 case elfcpp::R_SPARC_8:
2669 case elfcpp::R_SPARC_7:
2670 case elfcpp::R_SPARC_6:
2671 case elfcpp::R_SPARC_5:
2672 {
2e702c99
RM		 2673 // Make a PLT entry if necessary.
2674 if (gsym->needs_plt_entry())
2675 {
2676 target->make_plt_entry(symtab, layout, gsym);
2677 // Since this is not a PC-relative relocation, we may be
2678 // taking the address of a function. In that case we need to
2679 // set the entry in the dynamic symbol table to the address of
2680 // the PLT entry.
2681 if (gsym->is_from_dynobj() && !parameters->options().shared())
2682 gsym->set_needs_dynsym_value();
2683 }
2684 // Make a dynamic relocation if necessary.
2685 if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
2686 {
0da6fa6c
DM		 2687 unsigned int r_off = reloc.get_r_offset();
2688
2689 // The assembler can sometimes emit unaligned relocations
2e702c99 2690 // for dwarf2 cfi directives.
0da6fa6c
DM		 2691 switch (r_type)
2692 {
2693 case elfcpp::R_SPARC_16:
2694 if (r_off & 0x1)
2695 orig_r_type = r_type = elfcpp::R_SPARC_UA16;
2696 break;
2697 case elfcpp::R_SPARC_32:
2698 if (r_off & 0x3)
2699 orig_r_type = r_type = elfcpp::R_SPARC_UA32;
2700 break;
2701 case elfcpp::R_SPARC_64:
2702 if (r_off & 0x7)
2703 orig_r_type = r_type = elfcpp::R_SPARC_UA64;
2704 break;
2705 case elfcpp::R_SPARC_UA16:
2706 if (!(r_off & 0x1))
2707 orig_r_type = r_type = elfcpp::R_SPARC_16;
2708 break;
2709 case elfcpp::R_SPARC_UA32:
2710 if (!(r_off & 0x3))
2711 orig_r_type = r_type = elfcpp::R_SPARC_32;
2712 break;
2713 case elfcpp::R_SPARC_UA64:
2714 if (!(r_off & 0x7))
2715 orig_r_type = r_type = elfcpp::R_SPARC_64;
2716 break;
2717 }
2718
2e702c99
RM		 2719 if (gsym->may_need_copy_reloc())
2720 {
2721 target->copy_reloc(symtab, layout, object,
2722 data_shndx, output_section, gsym, reloc);
2723 }
8c2bf391
DM		 2724 else if (((size == 64 && r_type == elfcpp::R_SPARC_64)
2725 || (size == 32 && r_type == elfcpp::R_SPARC_32))
2726 && gsym->type() == elfcpp::STT_GNU_IFUNC
2727 && gsym->can_use_relative_reloc(false)
2728 && !gsym->is_from_dynobj()
2729 && !gsym->is_undefined()
2730 && !gsym->is_preemptible())
2731 {
2732 // Use an IRELATIVE reloc for a locally defined
2733 // STT_GNU_IFUNC symbol. This makes a function
2734 // address in a PIE executable match the address in a
2735 // shared library that it links against.
2736 Reloc_section* rela_dyn =
2737 target->rela_ifunc_section(layout);
2738 unsigned int r_type = elfcpp::R_SPARC_IRELATIVE;
2739 rela_dyn->add_symbolless_global_addend(gsym, r_type,
2740 output_section, object,
2741 data_shndx,
2742 reloc.get_r_offset(),
2743 reloc.get_r_addend());
2744 }
2e702c99 2745 else if ((r_type == elfcpp::R_SPARC_32
f5314dd5 2746 || r_type == elfcpp::R_SPARC_64)
2e702c99
RM		 2747 && gsym->can_use_relative_reloc(false))
2748 {
2749 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2750 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
f5314dd5
DM		 2751 output_section, object,
2752 data_shndx, reloc.get_r_offset(),
8c2bf391 2753 reloc.get_r_addend(), is_ifunc);
2e702c99
RM		 2754 }
2755 else
2756 {
2757 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
f5314dd5 2758
32b769e1 2759 check_non_pic(object, r_type);
0da6fa6c
DM		 2760 if (gsym->is_from_dynobj()
2761 || gsym->is_undefined()
2762 || gsym->is_preemptible())
2763 rela_dyn->add_global(gsym, orig_r_type, output_section,
2764 object, data_shndx,
2765 reloc.get_r_offset(),
2766 reloc.get_r_addend());
2767 else
2768 rela_dyn->add_symbolless_global_addend(gsym, orig_r_type,
2769 output_section,
2770 object, data_shndx,
2771 reloc.get_r_offset(),
2772 reloc.get_r_addend());
2e702c99
RM		 2773 }
2774 }
f5314dd5
DM		 2775 }
2776 break;
2777
024c4466
DM		 2778 case elfcpp::R_SPARC_GOTDATA_OP:
2779 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2780 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8 2781 if (gsym->is_defined()
2e702c99
RM		 2782 && !gsym->is_from_dynobj()
2783 && !gsym->is_preemptible()
2a1079e8
DM		 2784 && !is_ifunc)
2785 {
2786 // We will optimize this into a GOT relative relocation
2787 // and code transform the GOT load into an addition.
2788 break;
2789 }
f5314dd5
DM		 2790 case elfcpp::R_SPARC_GOT10:
2791 case elfcpp::R_SPARC_GOT13:
2792 case elfcpp::R_SPARC_GOT22:
2793 {
2e702c99
RM		 2794 // The symbol requires a GOT entry.
2795 Output_data_got<size, big_endian>* got;
f5314dd5
DM		 2796
2797 got = target->got_section(symtab, layout);
2e702c99 2798 if (gsym->final_value_is_known())
8c2bf391
DM		 2799 {
2800 // For a STT_GNU_IFUNC symbol we want the PLT address.
2801 if (gsym->type() == elfcpp::STT_GNU_IFUNC)
2802 got->add_global_plt(gsym, GOT_TYPE_STANDARD);
2803 else
2804 got->add_global(gsym, GOT_TYPE_STANDARD);
2805 }
2e702c99
RM		 2806 else
2807 {
2808 // If this symbol is not fully resolved, we need to add a
2809 // GOT entry with a dynamic relocation.
8c2bf391
DM		 2810 bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC;
2811
2812 // Use a GLOB_DAT rather than a RELATIVE reloc if:
2813 //
2814 // 1) The symbol may be defined in some other module.
2815 //
2816 // 2) We are building a shared library and this is a
2817 // protected symbol; using GLOB_DAT means that the dynamic
2818 // linker can use the address of the PLT in the main
2819 // executable when appropriate so that function address
2820 // comparisons work.
2821 //
2822 // 3) This is a STT_GNU_IFUNC symbol in position dependent
2823 // code, again so that function address comparisons work.
2e702c99
RM		 2824 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2825 if (gsym->is_from_dynobj()
2826 || gsym->is_undefined()
2827 || gsym->is_preemptible()
8c2bf391
DM		 2828 || (gsym->visibility() == elfcpp::STV_PROTECTED
2829 && parameters->options().shared())
2830 || (gsym->type() == elfcpp::STT_GNU_IFUNC
2831 && parameters->options().output_is_position_independent()
2832 && !gsym->is_forced_local()))
2833 {
2834 unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT;
2835
2836 // If this symbol is forced local, this relocation will
2837 // not work properly. That's because ld.so on sparc
2838 // (and 32-bit powerpc) expects st_value in the r_addend
2839 // of relocations for STB_LOCAL symbols. Curiously the
2840 // BFD linker does not promote global hidden symbols to be
2841 // STB_LOCAL in the dynamic symbol table like Gold does.
2842 gold_assert(!gsym->is_forced_local());
2843 got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn,
2844 r_type);
2845 }
2e702c99
RM		 2846 else if (!gsym->has_got_offset(GOT_TYPE_STANDARD))
2847 {
f5314dd5
DM		 2848 unsigned int off = got->add_constant(0);
2849
2850 gsym->set_got_offset(GOT_TYPE_STANDARD, off);
8c2bf391
DM		 2851 if (is_ifunc)
2852 {
2853 // Tell the dynamic linker to use the PLT address
2854 // when resolving relocations.
2855 if (gsym->is_from_dynobj()
2856 && !parameters->options().shared())
2857 gsym->set_needs_dynsym_value();
2858 }
f5314dd5 2859 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
8c2bf391 2860 got, off, 0, is_ifunc);
f5314dd5 2861 }
2e702c99 2862 }
f5314dd5
DM		 2863 }
2864 break;
2865
2866 // These are initial tls relocs, which are expected when
2867 // linking.
2868 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2869 case elfcpp::R_SPARC_TLS_GD_LO10:
2870 case elfcpp::R_SPARC_TLS_GD_ADD:
2871 case elfcpp::R_SPARC_TLS_GD_CALL:
2872 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2873 case elfcpp::R_SPARC_TLS_LDM_LO10:
2874 case elfcpp::R_SPARC_TLS_LDM_ADD:
2875 case elfcpp::R_SPARC_TLS_LDM_CALL:
2876 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2877 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2878 case elfcpp::R_SPARC_TLS_LDO_ADD:
2879 case elfcpp::R_SPARC_TLS_LE_HIX22:
2880 case elfcpp::R_SPARC_TLS_LE_LOX10:
2881 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2882 case elfcpp::R_SPARC_TLS_IE_LO10:
2883 case elfcpp::R_SPARC_TLS_IE_LD:
2884 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2885 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2886 {
2887 const bool is_final = gsym->final_value_is_known();
2888 const tls::Tls_optimization optimized_type
2e702c99 2889 = optimize_tls_reloc(is_final, r_type);
f5314dd5
DM		 2890 switch (r_type)
2891 {
2892 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2893 case elfcpp::R_SPARC_TLS_GD_LO10:
2894 case elfcpp::R_SPARC_TLS_GD_ADD:
2895 case elfcpp::R_SPARC_TLS_GD_CALL:
2896 if (optimized_type == tls::TLSOPT_NONE)
2897 {
2e702c99
RM		 2898 // Create a pair of GOT entries for the module index and
2899 // dtv-relative offset.
2900 Output_data_got<size, big_endian>* got
2901 = target->got_section(symtab, layout);
2902 got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR,
83896202
ILT		 2903 target->rela_dyn_section(layout),
2904 (size == 64
2905 ? elfcpp::R_SPARC_TLS_DTPMOD64
2906 : elfcpp::R_SPARC_TLS_DTPMOD32),
2907 (size == 64
2908 ? elfcpp::R_SPARC_TLS_DTPOFF64
2909 : elfcpp::R_SPARC_TLS_DTPOFF32));
f5314dd5
DM		 2910
2911 // Emit R_SPARC_WPLT30 against "__tls_get_addr"
2912 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
2913 generate_tls_call(symtab, layout, target);
2914 }
2915 else if (optimized_type == tls::TLSOPT_TO_IE)
2916 {
2e702c99
RM		 2917 // Create a GOT entry for the tp-relative offset.
2918 Output_data_got<size, big_endian>* got
2919 = target->got_section(symtab, layout);
2920 got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
83896202
ILT		 2921 target->rela_dyn_section(layout),
2922 (size == 64 ?
2923 elfcpp::R_SPARC_TLS_TPOFF64 :
2924 elfcpp::R_SPARC_TLS_TPOFF32));
f5314dd5
DM		 2925 }
2926 else if (optimized_type != tls::TLSOPT_TO_LE)
2927 unsupported_reloc_global(object, r_type, gsym);
2928 break;
2929
2930 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2931 case elfcpp::R_SPARC_TLS_LDM_LO10:
2932 case elfcpp::R_SPARC_TLS_LDM_ADD:
2933 case elfcpp::R_SPARC_TLS_LDM_CALL:
2934 if (optimized_type == tls::TLSOPT_NONE)
2935 {
2936 // Create a GOT entry for the module index.
2937 target->got_mod_index_entry(symtab, layout, object);
2938
2939 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
2940 generate_tls_call(symtab, layout, target);
2941 }
2942 else if (optimized_type != tls::TLSOPT_TO_LE)
2943 unsupported_reloc_global(object, r_type, gsym);
2944 break;
2945
2946 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2947 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2948 case elfcpp::R_SPARC_TLS_LDO_ADD:
2949 break;
2950
2951 case elfcpp::R_SPARC_TLS_LE_HIX22:
2952 case elfcpp::R_SPARC_TLS_LE_LOX10:
2953 layout->set_has_static_tls();
2954 if (parameters->options().shared())
2955 {
2956 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
0da6fa6c
DM		 2957 rela_dyn->add_symbolless_global_addend(gsym, orig_r_type,
2958 output_section, object,
2959 data_shndx, reloc.get_r_offset(),
2960 0);
f5314dd5
DM		 2961 }
2962 break;
2963
2964 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2965 case elfcpp::R_SPARC_TLS_IE_LO10:
2966 case elfcpp::R_SPARC_TLS_IE_LD:
2967 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2968 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2969 layout->set_has_static_tls();
2970 if (optimized_type == tls::TLSOPT_NONE)
2971 {
2972 // Create a GOT entry for the tp-relative offset.
2973 Output_data_got<size, big_endian>* got
2974 = target->got_section(symtab, layout);
83896202
ILT		 2975 got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
2976 target->rela_dyn_section(layout),
2977 (size == 64
2978 ? elfcpp::R_SPARC_TLS_TPOFF64
2979 : elfcpp::R_SPARC_TLS_TPOFF32));
f5314dd5
DM		 2980 }
2981 else if (optimized_type != tls::TLSOPT_TO_LE)
2982 unsupported_reloc_global(object, r_type, gsym);
2983 break;
2984 }
2985 }
2986 break;
2987
2988 // These are relocations which should only be seen by the
2989 // dynamic linker, and should never be seen here.
2990 case elfcpp::R_SPARC_COPY:
2991 case elfcpp::R_SPARC_GLOB_DAT:
2992 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2993 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 2994 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2995 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 2996 case elfcpp::R_SPARC_TLS_DTPMOD64:
2997 case elfcpp::R_SPARC_TLS_DTPMOD32:
2998 case elfcpp::R_SPARC_TLS_DTPOFF64:
2999 case elfcpp::R_SPARC_TLS_DTPOFF32:
3000 case elfcpp::R_SPARC_TLS_TPOFF64:
3001 case elfcpp::R_SPARC_TLS_TPOFF32:
3002 gold_error(_("%s: unexpected reloc %u in object file"),
3003 object->name().c_str(), r_type);
3004 break;
3005
3006 default:
3007 unsupported_reloc_global(object, r_type, gsym);
3008 break;
3009 }
3010}
3011
6d03d481
ST		 3012// Process relocations for gc.
3013
3014template<int size, bool big_endian>
3015void
3016Target_sparc<size, big_endian>::gc_process_relocs(
6d03d481
ST		 3017 Symbol_table* symtab,
3018 Layout* layout,
6fa2a40b 3019 Sized_relobj_file<size, big_endian>* object,
6d03d481
ST		 3020 unsigned int data_shndx,
3021 unsigned int,
3022 const unsigned char* prelocs,
3023 size_t reloc_count,
3024 Output_section* output_section,
3025 bool needs_special_offset_handling,
3026 size_t local_symbol_count,
3027 const unsigned char* plocal_symbols)
3028{
3029 typedef Target_sparc<size, big_endian> Sparc;
2ea97941 3030 typedef typename Target_sparc<size, big_endian>::Scan Scan;
6d03d481 3031
41cbeecc 3032 gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan,
3ff2ccb0 3033 typename Target_sparc::Relocatable_size_for_reloc>(
6d03d481
ST		 3034 symtab,
3035 layout,
3036 this,
3037 object,
3038 data_shndx,
3039 prelocs,
3040 reloc_count,
3041 output_section,
3042 needs_special_offset_handling,
3043 local_symbol_count,
3044 plocal_symbols);
3045}
3046
f5314dd5
DM		 3047// Scan relocations for a section.
3048
3049template<int size, bool big_endian>
3050void
3051Target_sparc<size, big_endian>::scan_relocs(
f5314dd5
DM		 3052 Symbol_table* symtab,
3053 Layout* layout,
6fa2a40b 3054 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 3055 unsigned int data_shndx,
3056 unsigned int sh_type,
3057 const unsigned char* prelocs,
3058 size_t reloc_count,
3059 Output_section* output_section,
3060 bool needs_special_offset_handling,
3061 size_t local_symbol_count,
3062 const unsigned char* plocal_symbols)
3063{
3064 typedef Target_sparc<size, big_endian> Sparc;
2ea97941 3065 typedef typename Target_sparc<size, big_endian>::Scan Scan;
f5314dd5
DM		 3066
3067 if (sh_type == elfcpp::SHT_REL)
3068 {
3069 gold_error(_("%s: unsupported REL reloc section"),
3070 object->name().c_str());
3071 return;
3072 }
3073
2ea97941 3074 gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>(
f5314dd5
DM		 3075 symtab,
3076 layout,
3077 this,
3078 object,
3079 data_shndx,
3080 prelocs,
3081 reloc_count,
3082 output_section,
3083 needs_special_offset_handling,
3084 local_symbol_count,
3085 plocal_symbols);
3086}
3087
3088// Finalize the sections.
3089
3090template<int size, bool big_endian>
3091void
d5b40221
DK		 3092Target_sparc<size, big_endian>::do_finalize_sections(
3093 Layout* layout,
f59f41f3 3094 const Input_objects*,
8c2bf391 3095 Symbol_table* symtab)
f5314dd5 3096{
8c2bf391
DM		 3097 if (this->plt_)
3098 this->plt_->emit_pending_ifunc_relocs();
3099
f5314dd5 3100 // Fill in some more dynamic tags.
ea715a34
ILT		 3101 const Reloc_section* rel_plt = (this->plt_ == NULL
3102 ? NULL
3103 : this->plt_->rel_plt());
3104 layout->add_target_dynamic_tags(false, this->plt_, rel_plt,
612a8d3d 3105 this->rela_dyn_, true, true);
f5314dd5
DM		 3106
3107 // Emit any relocs we saved in an attempt to avoid generating COPY
3108 // relocs.
12c0daef
ILT		 3109 if (this->copy_relocs_.any_saved_relocs())
3110 this->copy_relocs_.emit(this->rela_dyn_section(layout));
8c2bf391
DM		 3111
3112 if (parameters->doing_static_link()
3113 && (this->plt_ == NULL || !this->plt_->has_ifunc_section()))
3114 {
3115 // If linking statically, make sure that the __rela_iplt symbols
3116 // were defined if necessary, even if we didn't create a PLT.
3117 static const Define_symbol_in_segment syms[] =
3118 {
3119 {
3120 "__rela_iplt_start", // name
3121 elfcpp::PT_LOAD, // segment_type
3122 elfcpp::PF_W, // segment_flags_set
3123 elfcpp::PF(0), // segment_flags_clear
3124 0, // value
3125 0, // size
3126 elfcpp::STT_NOTYPE, // type
3127 elfcpp::STB_GLOBAL, // binding
3128 elfcpp::STV_HIDDEN, // visibility
3129 0, // nonvis
3130 Symbol::SEGMENT_START, // offset_from_base
3131 true // only_if_ref
3132 },
3133 {
3134 "__rela_iplt_end", // name
3135 elfcpp::PT_LOAD, // segment_type
3136 elfcpp::PF_W, // segment_flags_set
3137 elfcpp::PF(0), // segment_flags_clear
3138 0, // value
3139 0, // size
3140 elfcpp::STT_NOTYPE, // type
3141 elfcpp::STB_GLOBAL, // binding
3142 elfcpp::STV_HIDDEN, // visibility
3143 0, // nonvis
3144 Symbol::SEGMENT_START, // offset_from_base
3145 true // only_if_ref
3146 }
3147 };
3148
3149 symtab->define_symbols(layout, 2, syms,
3150 layout->script_options()->saw_sections_clause());
3151 }
f5314dd5
DM		 3152}
3153
3154// Perform a relocation.
3155
3156template<int size, bool big_endian>
3157inline bool
3158Target_sparc<size, big_endian>::Relocate::relocate(
3159 const Relocate_info<size, big_endian>* relinfo,
3160 Target_sparc* target,
031cdbed 3161 Output_section*,
f5314dd5
DM		 3162 size_t relnum,
3163 const elfcpp::Rela<size, big_endian>& rela,
3164 unsigned int r_type,
3165 const Sized_symbol<size>* gsym,
3166 const Symbol_value<size>* psymval,
3167 unsigned char* view,
3168 typename elfcpp::Elf_types<size>::Elf_Addr address,
3169 section_size_type view_size)
3170{
2a1079e8 3171 bool orig_is_ifunc = psymval->is_ifunc_symbol();
f5314dd5
DM		 3172 r_type &= 0xff;
3173
3174 if (this->ignore_gd_add_)
3175 {
3176 if (r_type != elfcpp::R_SPARC_TLS_GD_ADD)
3177 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3178 _("missing expected TLS relocation"));
3179 else
3180 {
3181 this->ignore_gd_add_ = false;
3182 return false;
3183 }
3184 }
abd242a9
DM		 3185 if (this->reloc_adjust_addr_ == view)
3186 view -= 4;
f5314dd5
DM		 3187
3188 typedef Sparc_relocate_functions<size, big_endian> Reloc;
8c2bf391 3189 const Sized_relobj_file<size, big_endian>* object = relinfo->object;
f5314dd5
DM		 3190
3191 // Pick the value to use for symbols defined in shared objects.
3192 Symbol_value<size> symval;
3193 if (gsym != NULL
95a2c8d6 3194 && gsym->use_plt_offset(Scan::get_reference_flags(r_type)))
f5314dd5 3195 {
2ea97941 3196 elfcpp::Elf_Xword value;
f5314dd5 3197
8c2bf391 3198 value = target->plt_address_for_global(gsym) + gsym->plt_offset();
f5314dd5 3199
2ea97941 3200 symval.set_output_value(value);
f5314dd5
DM		 3201
3202 psymval = &symval;
3203 }
2a1079e8 3204 else if (gsym == NULL && orig_is_ifunc)
8c2bf391
DM		 3205 {
3206 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3207 if (object->local_has_plt_offset(r_sym))
3208 {
3209 symval.set_output_value(target->plt_address_for_local(object, r_sym)
3210 + object->local_plt_offset(r_sym));
3211 psymval = &symval;
3212 }
3213 }
f5314dd5 3214
f5314dd5
DM		 3215 const elfcpp::Elf_Xword addend = rela.get_r_addend();
3216
3217 // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT
3218 // pointer points to the beginning, not the end, of the table.
3219 // So we just use the plain offset.
f5314dd5 3220 unsigned int got_offset = 0;
2a1079e8 3221 bool gdop_valid = false;
f5314dd5
DM		 3222 switch (r_type)
3223 {
024c4466
DM		 3224 case elfcpp::R_SPARC_GOTDATA_OP:
3225 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
3226 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 3227 // If this is local, we did not create a GOT entry because we
3228 // intend to transform this into a GOT relative relocation.
3229 if (gsym == NULL
3230 || (gsym->is_defined()
3231 && !gsym->is_from_dynobj()
3232 && !gsym->is_preemptible()
3233 && !orig_is_ifunc))
3234 {
3235 got_offset = psymval->value(object, 0) - target->got_address();
3236 gdop_valid = true;
3237 break;
3238 }
f5314dd5
DM		 3239 case elfcpp::R_SPARC_GOT10:
3240 case elfcpp::R_SPARC_GOT13:
3241 case elfcpp::R_SPARC_GOT22:
3242 if (gsym != NULL)
2e702c99
RM		 3243 {
3244 gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD));
3245 got_offset = gsym->got_offset(GOT_TYPE_STANDARD);
3246 }
f5314dd5 3247 else
2e702c99
RM		 3248 {
3249 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3250 gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD));
3251 got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD);
3252 }
f5314dd5
DM		 3253 break;
3254
3255 default:
3256 break;
3257 }
3258
3259 switch (r_type)
3260 {
3261 case elfcpp::R_SPARC_NONE:
3262 case elfcpp::R_SPARC_REGISTER:
3263 case elfcpp::R_SPARC_GNU_VTINHERIT:
3264 case elfcpp::R_SPARC_GNU_VTENTRY:
3265 break;
3266
3267 case elfcpp::R_SPARC_8:
3268 Relocate_functions<size, big_endian>::rela8(view, object,
3269 psymval, addend);
3270 break;
3271
3272 case elfcpp::R_SPARC_16:
705b5121
DM		 3273 if (rela.get_r_offset() & 0x1)
3274 {
3275 // The assembler can sometimes emit unaligned relocations
2e702c99 3276 // for dwarf2 cfi directives.
705b5121
DM		 3277 Reloc::ua16(view, object, psymval, addend);
3278 }
3279 else
3280 Relocate_functions<size, big_endian>::rela16(view, object,
3281 psymval, addend);
f5314dd5
DM		 3282 break;
3283
3284 case elfcpp::R_SPARC_32:
3285 if (!parameters->options().output_is_position_independent())
705b5121
DM		 3286 {
3287 if (rela.get_r_offset() & 0x3)
3288 {
3289 // The assembler can sometimes emit unaligned relocations
2e702c99 3290 // for dwarf2 cfi directives.
705b5121
DM		 3291 Reloc::ua32(view, object, psymval, addend);
3292 }
3293 else
3294 Relocate_functions<size, big_endian>::rela32(view, object,
3295 psymval, addend);
3296 }
f5314dd5
DM		 3297 break;
3298
3299 case elfcpp::R_SPARC_DISP8:
3300 Reloc::disp8(view, object, psymval, addend, address);
3301 break;
3302
3303 case elfcpp::R_SPARC_DISP16:
3304 Reloc::disp16(view, object, psymval, addend, address);
3305 break;
3306
3307 case elfcpp::R_SPARC_DISP32:
3308 Reloc::disp32(view, object, psymval, addend, address);
3309 break;
3310
3311 case elfcpp::R_SPARC_DISP64:
3312 Reloc::disp64(view, object, psymval, addend, address);
3313 break;
3314
3315 case elfcpp::R_SPARC_WDISP30:
3316 case elfcpp::R_SPARC_WPLT30:
3317 Reloc::wdisp30(view, object, psymval, addend, address);
a5a5f7a3
DM		 3318 if (target->may_relax())
3319 relax_call(target, view, rela, view_size);
f5314dd5
DM		 3320 break;
3321
3322 case elfcpp::R_SPARC_WDISP22:
3323 Reloc::wdisp22(view, object, psymval, addend, address);
3324 break;
3325
3326 case elfcpp::R_SPARC_WDISP19:
3327 Reloc::wdisp19(view, object, psymval, addend, address);
3328 break;
3329
3330 case elfcpp::R_SPARC_WDISP16:
3331 Reloc::wdisp16(view, object, psymval, addend, address);
3332 break;
3333
2615994e
DM		 3334 case elfcpp::R_SPARC_WDISP10:
3335 Reloc::wdisp10(view, object, psymval, addend, address);
3336 break;
3337
f5314dd5
DM		 3338 case elfcpp::R_SPARC_HI22:
3339 Reloc::hi22(view, object, psymval, addend);
3340 break;
3341
3342 case elfcpp::R_SPARC_22:
3343 Reloc::rela32_22(view, object, psymval, addend);
3344 break;
3345
3346 case elfcpp::R_SPARC_13:
3347 Reloc::rela32_13(view, object, psymval, addend);
3348 break;
3349
3350 case elfcpp::R_SPARC_LO10:
3351 Reloc::lo10(view, object, psymval, addend);
3352 break;
3353
3354 case elfcpp::R_SPARC_GOT10:
3355 Reloc::lo10(view, got_offset, addend);
3356 break;
3357
024c4466 3358 case elfcpp::R_SPARC_GOTDATA_OP:
2a1079e8
DM		 3359 if (gdop_valid)
3360 {
3361 typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
3362 Insntype* wv = reinterpret_cast<Insntype*>(view);
3363 Insntype val;
3364
3365 // {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd
3366 val = elfcpp::Swap<32, true>::readval(wv);
3367 val = 0x80000000 | (val & 0x3e07c01f);
3368 elfcpp::Swap<32, true>::writeval(wv, val);
3369 }
024c4466
DM		 3370 break;
3371
3372 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 3373 if (gdop_valid)
3374 {
3375 Reloc::gdop_lox10(view, got_offset, addend);
3376 break;
3377 }
3378 /* Fall through. */
f5314dd5
DM		 3379 case elfcpp::R_SPARC_GOT13:
3380 Reloc::rela32_13(view, got_offset, addend);
3381 break;
3382
024c4466 3383 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2a1079e8
DM		 3384 if (gdop_valid)
3385 {
3386 Reloc::gdop_hix22(view, got_offset, addend);
3387 break;
3388 }
3389 /* Fall through. */
f5314dd5
DM		 3390 case elfcpp::R_SPARC_GOT22:
3391 Reloc::hi22(view, got_offset, addend);
3392 break;
3393
3394 case elfcpp::R_SPARC_PC10:
3395 Reloc::pc10(view, object, psymval, addend, address);
3396 break;
3397
3398 case elfcpp::R_SPARC_PC22:
3399 Reloc::pc22(view, object, psymval, addend, address);
3400 break;
3401
3402 case elfcpp::R_SPARC_TLS_DTPOFF32:
3403 case elfcpp::R_SPARC_UA32:
3404 Reloc::ua32(view, object, psymval, addend);
3405 break;
3406
3407 case elfcpp::R_SPARC_PLT64:
3408 Relocate_functions<size, big_endian>::rela64(view, object,
3409 psymval, addend);
3410 break;
3411
3412 case elfcpp::R_SPARC_PLT32:
3413 Relocate_functions<size, big_endian>::rela32(view, object,
3414 psymval, addend);
3415 break;
3416
3417 case elfcpp::R_SPARC_HIPLT22:
3418 Reloc::hi22(view, object, psymval, addend);
3419 break;
3420
3421 case elfcpp::R_SPARC_LOPLT10:
3422 Reloc::lo10(view, object, psymval, addend);
3423 break;
3424
3425 case elfcpp::R_SPARC_PCPLT32:
3426 Reloc::disp32(view, object, psymval, addend, address);
3427 break;
3428
3429 case elfcpp::R_SPARC_PCPLT22:
3430 Reloc::pcplt22(view, object, psymval, addend, address);
3431 break;
3432
3433 case elfcpp::R_SPARC_PCPLT10:
3434 Reloc::lo10(view, object, psymval, addend, address);
3435 break;
3436
3437 case elfcpp::R_SPARC_64:
3438 if (!parameters->options().output_is_position_independent())
705b5121
DM		 3439 {
3440 if (rela.get_r_offset() & 0x7)
3441 {
3442 // The assembler can sometimes emit unaligned relocations
2e702c99 3443 // for dwarf2 cfi directives.
705b5121
DM		 3444 Reloc::ua64(view, object, psymval, addend);
3445 }
3446 else
3447 Relocate_functions<size, big_endian>::rela64(view, object,
3448 psymval, addend);
3449 }
f5314dd5
DM		 3450 break;
3451
3452 case elfcpp::R_SPARC_OLO10:
3453 {
3454 unsigned int addend2 = rela.get_r_info() & 0xffffffff;
3455 addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000;
3456 Reloc::olo10(view, object, psymval, addend, addend2);
3457 }
3458 break;
3459
3460 case elfcpp::R_SPARC_HH22:
3461 Reloc::hh22(view, object, psymval, addend);
3462 break;
3463
3464 case elfcpp::R_SPARC_PC_HH22:
3465 Reloc::pc_hh22(view, object, psymval, addend, address);
3466 break;
3467
3468 case elfcpp::R_SPARC_HM10:
3469 Reloc::hm10(view, object, psymval, addend);
3470 break;
3471
3472 case elfcpp::R_SPARC_PC_HM10:
3473 Reloc::pc_hm10(view, object, psymval, addend, address);
3474 break;
3475
3476 case elfcpp::R_SPARC_LM22:
3477 Reloc::hi22(view, object, psymval, addend);
3478 break;
3479
3480 case elfcpp::R_SPARC_PC_LM22:
3481 Reloc::pcplt22(view, object, psymval, addend, address);
3482 break;
3483
3484 case elfcpp::R_SPARC_11:
3485 Reloc::rela32_11(view, object, psymval, addend);
3486 break;
3487
3488 case elfcpp::R_SPARC_10:
3489 Reloc::rela32_10(view, object, psymval, addend);
3490 break;
3491
3492 case elfcpp::R_SPARC_7:
3493 Reloc::rela32_7(view, object, psymval, addend);
3494 break;
3495
3496 case elfcpp::R_SPARC_6:
3497 Reloc::rela32_6(view, object, psymval, addend);
3498 break;
3499
3500 case elfcpp::R_SPARC_5:
3501 Reloc::rela32_5(view, object, psymval, addend);
3502 break;
3503
3504 case elfcpp::R_SPARC_HIX22:
3505 Reloc::hix22(view, object, psymval, addend);
3506 break;
3507
3508 case elfcpp::R_SPARC_LOX10:
3509 Reloc::lox10(view, object, psymval, addend);
3510 break;
3511
2615994e
DM		 3512 case elfcpp::R_SPARC_H34:
3513 Reloc::h34(view, object, psymval, addend);
3514 break;
3515
f5314dd5
DM		 3516 case elfcpp::R_SPARC_H44:
3517 Reloc::h44(view, object, psymval, addend);
3518 break;
3519
3520 case elfcpp::R_SPARC_M44:
3521 Reloc::m44(view, object, psymval, addend);
3522 break;
3523
3524 case elfcpp::R_SPARC_L44:
3525 Reloc::l44(view, object, psymval, addend);
3526 break;
3527
3528 case elfcpp::R_SPARC_TLS_DTPOFF64:
3529 case elfcpp::R_SPARC_UA64:
3530 Reloc::ua64(view, object, psymval, addend);
3531 break;
3532
3533 case elfcpp::R_SPARC_UA16:
3534 Reloc::ua16(view, object, psymval, addend);
3535 break;
3536
3537 case elfcpp::R_SPARC_TLS_GD_HI22:
3538 case elfcpp::R_SPARC_TLS_GD_LO10:
3539 case elfcpp::R_SPARC_TLS_GD_ADD:
3540 case elfcpp::R_SPARC_TLS_GD_CALL:
3541 case elfcpp::R_SPARC_TLS_LDM_HI22:
3542 case elfcpp::R_SPARC_TLS_LDM_LO10:
3543 case elfcpp::R_SPARC_TLS_LDM_ADD:
3544 case elfcpp::R_SPARC_TLS_LDM_CALL:
3545 case elfcpp::R_SPARC_TLS_LDO_HIX22:
3546 case elfcpp::R_SPARC_TLS_LDO_LOX10:
3547 case elfcpp::R_SPARC_TLS_LDO_ADD:
3548 case elfcpp::R_SPARC_TLS_IE_HI22:
3549 case elfcpp::R_SPARC_TLS_IE_LO10:
3550 case elfcpp::R_SPARC_TLS_IE_LD:
3551 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 3552 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 3553 case elfcpp::R_SPARC_TLS_LE_HIX22:
3554 case elfcpp::R_SPARC_TLS_LE_LOX10:
3555 this->relocate_tls(relinfo, target, relnum, rela,
3556 r_type, gsym, psymval, view,
3557 address, view_size);
3558 break;
3559
3560 case elfcpp::R_SPARC_COPY:
3561 case elfcpp::R_SPARC_GLOB_DAT:
3562 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 3563 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 3564 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 3565 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 3566 // These are outstanding tls relocs, which are unexpected when
3567 // linking.
3568 case elfcpp::R_SPARC_TLS_DTPMOD64:
3569 case elfcpp::R_SPARC_TLS_DTPMOD32:
3570 case elfcpp::R_SPARC_TLS_TPOFF64:
3571 case elfcpp::R_SPARC_TLS_TPOFF32:
3572 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3573 _("unexpected reloc %u in object file"),
3574 r_type);
3575 break;
3576
3577 default:
3578 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3579 _("unsupported reloc %u"),
3580 r_type);
3581 break;
3582 }
3583
3584 return true;
3585}
3586
3587// Perform a TLS relocation.
3588
3589template<int size, bool big_endian>
3590inline void
3591Target_sparc<size, big_endian>::Relocate::relocate_tls(
3592 const Relocate_info<size, big_endian>* relinfo,
3593 Target_sparc<size, big_endian>* target,
3594 size_t relnum,
3595 const elfcpp::Rela<size, big_endian>& rela,
3596 unsigned int r_type,
3597 const Sized_symbol<size>* gsym,
3598 const Symbol_value<size>* psymval,
3599 unsigned char* view,
3600 typename elfcpp::Elf_types<size>::Elf_Addr address,
3601 section_size_type)
3602{
3603 Output_segment* tls_segment = relinfo->layout->tls_segment();
3604 typedef Sparc_relocate_functions<size, big_endian> Reloc;
6fa2a40b 3605 const Sized_relobj_file<size, big_endian>* object = relinfo->object;
f5314dd5
DM		 3606 typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
3607
3608 const elfcpp::Elf_Xword addend = rela.get_r_addend();
2ea97941 3609 typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0);
f5314dd5
DM		 3610
3611 const bool is_final =
3612 (gsym == NULL
3613 ? !parameters->options().output_is_position_independent()
3614 : gsym->final_value_is_known());
3615 const tls::Tls_optimization optimized_type
3616 = optimize_tls_reloc(is_final, r_type);
3617
3618 switch (r_type)
3619 {
3620 case elfcpp::R_SPARC_TLS_GD_HI22:
3621 case elfcpp::R_SPARC_TLS_GD_LO10:
3622 case elfcpp::R_SPARC_TLS_GD_ADD:
3623 case elfcpp::R_SPARC_TLS_GD_CALL:
3624 if (optimized_type == tls::TLSOPT_TO_LE)
3625 {
3626 Insntype* wv = reinterpret_cast<Insntype*>(view);
3627 Insntype val;
3628
2ea97941 3629 value -= tls_segment->memsz();
f5314dd5
DM		 3630
3631 switch (r_type)
3632 {
3633 case elfcpp::R_SPARC_TLS_GD_HI22:
3634 // TLS_GD_HI22 --> TLS_LE_HIX22
2ea97941 3635 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3636 break;
3637
3638 case elfcpp::R_SPARC_TLS_GD_LO10:
3639 // TLS_GD_LO10 --> TLS_LE_LOX10
2ea97941 3640 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3641 break;
3642
3643 case elfcpp::R_SPARC_TLS_GD_ADD:
3644 // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3
3645 val = elfcpp::Swap<32, true>::readval(wv);
3646 val = (val & ~0x7c000) | 0x1c000;
3647 elfcpp::Swap<32, true>::writeval(wv, val);
3648 break;
3649 case elfcpp::R_SPARC_TLS_GD_CALL:
3650 // call __tls_get_addr --> nop
3651 elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
3652 break;
3653 }
3654 break;
3655 }
3656 else
2e702c99
RM		 3657 {
3658 unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE
3659 ? GOT_TYPE_TLS_OFFSET
3660 : GOT_TYPE_TLS_PAIR);
3661 if (gsym != NULL)
3662 {
3663 gold_assert(gsym->has_got_offset(got_type));
3664 value = gsym->got_offset(got_type);
3665 }
3666 else
3667 {
3668 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3669 gold_assert(object->local_has_got_offset(r_sym, got_type));
3670 value = object->local_got_offset(r_sym, got_type);
3671 }
3672 if (optimized_type == tls::TLSOPT_TO_IE)
f5314dd5
DM		 3673 {
3674 Insntype* wv = reinterpret_cast<Insntype*>(view);
3675 Insntype val;
3676
3677 switch (r_type)
3678 {
3679 case elfcpp::R_SPARC_TLS_GD_HI22:
3680 // TLS_GD_HI22 --> TLS_IE_HI22
2ea97941 3681 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3682 break;
3683
3684 case elfcpp::R_SPARC_TLS_GD_LO10:
3685 // TLS_GD_LO10 --> TLS_IE_LO10
2ea97941 3686 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3687 break;
3688
3689 case elfcpp::R_SPARC_TLS_GD_ADD:
3690 // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3
3691 val = elfcpp::Swap<32, true>::readval(wv);
3692
3693 if (size == 64)
3694 val |= 0xc0580000;
3695 else
3696 val |= 0xc0000000;
3697
3698 elfcpp::Swap<32, true>::writeval(wv, val);
3699 break;
3700
3701 case elfcpp::R_SPARC_TLS_GD_CALL:
3702 // The compiler can put the TLS_GD_ADD instruction
3703 // into the delay slot of the call. If so, we need
3704 // to transpose the two instructions so that the
9b547ce6 3705 // new sequence works properly.
f5314dd5
DM		 3706 //
3707 // The test we use is if the instruction in the
3708 // delay slot is an add with destination register
3709 // equal to %o0
3710 val = elfcpp::Swap<32, true>::readval(wv + 1);
3711 if ((val & 0x81f80000) == 0x80000000
3712 && ((val >> 25) & 0x1f) == 0x8)
3713 {
3714 if (size == 64)
3715 val |= 0xc0580000;
3716 else
3717 val |= 0xc0000000;
3718
3719 elfcpp::Swap<32, true>::writeval(wv, val);
3720
3721 wv += 1;
3722 this->ignore_gd_add_ = true;
3723 }
abd242a9
DM		 3724 else
3725 {
3726 // Even if the delay slot isn't the TLS_GD_ADD
3727 // instruction, we still have to handle the case
3728 // where it sets up %o0 in some other way.
3729 elfcpp::Swap<32, true>::writeval(wv, val);
3730 wv += 1;
3731 this->reloc_adjust_addr_ = view + 4;
3732 }
f5314dd5
DM		 3733 // call __tls_get_addr --> add %g7, %o0, %o0
3734 elfcpp::Swap<32, true>::writeval(wv, 0x9001c008);
3735 break;
3736 }
2e702c99 3737 break;
f5314dd5 3738 }
2e702c99
RM		 3739 else if (optimized_type == tls::TLSOPT_NONE)
3740 {
f5314dd5
DM		 3741 switch (r_type)
3742 {
3743 case elfcpp::R_SPARC_TLS_GD_HI22:
2ea97941 3744 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3745 break;
3746 case elfcpp::R_SPARC_TLS_GD_LO10:
2ea97941 3747 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3748 break;
3749 case elfcpp::R_SPARC_TLS_GD_ADD:
3750 break;
3751 case elfcpp::R_SPARC_TLS_GD_CALL:
3752 {
3753 Symbol_value<size> symval;
2ea97941 3754 elfcpp::Elf_Xword value;
f5314dd5
DM		 3755 Symbol* tsym;
3756
3757 tsym = target->tls_get_addr_sym_;
3758 gold_assert(tsym);
2ea97941
ILT		 3759 value = (target->plt_section()->address() +
3760 tsym->plt_offset());
3761 symval.set_output_value(value);
f5314dd5
DM		 3762 Reloc::wdisp30(view, object, &symval, addend, address);
3763 }
3764 break;
3765 }
3766 break;
2e702c99
RM		 3767 }
3768 }
f5314dd5
DM		 3769 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3770 _("unsupported reloc %u"),
3771 r_type);
3772 break;
3773
3774 case elfcpp::R_SPARC_TLS_LDM_HI22:
3775 case elfcpp::R_SPARC_TLS_LDM_LO10:
3776 case elfcpp::R_SPARC_TLS_LDM_ADD:
3777 case elfcpp::R_SPARC_TLS_LDM_CALL:
3778 if (optimized_type == tls::TLSOPT_TO_LE)
3779 {
3780 Insntype* wv = reinterpret_cast<Insntype*>(view);
3781
3782 switch (r_type)
3783 {
3784 case elfcpp::R_SPARC_TLS_LDM_HI22:
3785 case elfcpp::R_SPARC_TLS_LDM_LO10:
3786 case elfcpp::R_SPARC_TLS_LDM_ADD:
3787 elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
3788 break;
3789
3790 case elfcpp::R_SPARC_TLS_LDM_CALL:
3791 elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0);
3792 break;
3793 }
3794 break;
3795 }
3796 else if (optimized_type == tls::TLSOPT_NONE)
2e702c99
RM		 3797 {
3798 // Relocate the field with the offset of the GOT entry for
3799 // the module index.
3800 unsigned int got_offset;
f5314dd5
DM		 3801
3802 got_offset = target->got_mod_index_entry(NULL, NULL, NULL);
3803 switch (r_type)
3804 {
3805 case elfcpp::R_SPARC_TLS_LDM_HI22:
3806 Reloc::hi22(view, got_offset, addend);
3807 break;
3808 case elfcpp::R_SPARC_TLS_LDM_LO10:
3809 Reloc::lo10(view, got_offset, addend);
3810 break;
3811 case elfcpp::R_SPARC_TLS_LDM_ADD:
3812 break;
3813 case elfcpp::R_SPARC_TLS_LDM_CALL:
3814 {
3815 Symbol_value<size> symval;
2ea97941 3816 elfcpp::Elf_Xword value;
f5314dd5
DM		 3817 Symbol* tsym;
3818
3819 tsym = target->tls_get_addr_sym_;
3820 gold_assert(tsym);
2ea97941
ILT		 3821 value = (target->plt_section()->address() +
3822 tsym->plt_offset());
3823 symval.set_output_value(value);
f5314dd5
DM		 3824 Reloc::wdisp30(view, object, &symval, addend, address);
3825 }
3826 break;
3827 }
2e702c99
RM		 3828 break;
3829 }
f5314dd5
DM		 3830 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3831 _("unsupported reloc %u"),
3832 r_type);
3833 break;
3834
3835 // These relocs can appear in debugging sections, in which case
3836 // we won't see the TLS_LDM relocs. The local_dynamic_type
3837 // field tells us this.
3838 case elfcpp::R_SPARC_TLS_LDO_HIX22:
3839 if (optimized_type == tls::TLSOPT_TO_LE)
3840 {
2ea97941
ILT		 3841 value -= tls_segment->memsz();
3842 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3843 }
3844 else
2ea97941 3845 Reloc::ldo_hix22(view, value, addend);
f5314dd5
DM		 3846 break;
3847 case elfcpp::R_SPARC_TLS_LDO_LOX10:
3848 if (optimized_type == tls::TLSOPT_TO_LE)
3849 {
2ea97941
ILT		 3850 value -= tls_segment->memsz();
3851 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3852 }
3853 else
2ea97941 3854 Reloc::ldo_lox10(view, value, addend);
f5314dd5
DM		 3855 break;
3856 case elfcpp::R_SPARC_TLS_LDO_ADD:
3857 if (optimized_type == tls::TLSOPT_TO_LE)
3858 {
3859 Insntype* wv = reinterpret_cast<Insntype*>(view);
3860 Insntype val;
3861
3862 // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3
3863 val = elfcpp::Swap<32, true>::readval(wv);
3864 val = (val & ~0x7c000) | 0x1c000;
3865 elfcpp::Swap<32, true>::writeval(wv, val);
3866 }
3867 break;
3868
3869 // When optimizing IE --> LE, the only relocation that is handled
3870 // differently is R_SPARC_TLS_IE_LD, it is rewritten from
3871 // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is
3872 // rs2 and rd are the same.
3873 case elfcpp::R_SPARC_TLS_IE_LD:
3874 case elfcpp::R_SPARC_TLS_IE_LDX:
3875 if (optimized_type == tls::TLSOPT_TO_LE)
3876 {
3877 Insntype* wv = reinterpret_cast<Insntype*>(view);
3878 Insntype val = elfcpp::Swap<32, true>::readval(wv);
3879 Insntype rs2 = val & 0x1f;
3880 Insntype rd = (val >> 25) & 0x1f;
3881
3882 if (rs2 == rd)
3883 val = sparc_nop;
3884 else
3885 val = sparc_mov | (val & 0x3e00001f);
3886
3887 elfcpp::Swap<32, true>::writeval(wv, val);
3888 }
3889 break;
3890
3891 case elfcpp::R_SPARC_TLS_IE_HI22:
3892 case elfcpp::R_SPARC_TLS_IE_LO10:
3893 if (optimized_type == tls::TLSOPT_TO_LE)
3894 {
2ea97941 3895 value -= tls_segment->memsz();
f5314dd5
DM		 3896 switch (r_type)
3897 {
3898 case elfcpp::R_SPARC_TLS_IE_HI22:
3899 // IE_HI22 --> LE_HIX22
2ea97941 3900 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3901 break;
3902 case elfcpp::R_SPARC_TLS_IE_LO10:
3903 // IE_LO10 --> LE_LOX10
2ea97941 3904 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3905 break;
3906 }
3907 break;
3908 }
3909 else if (optimized_type == tls::TLSOPT_NONE)
3910 {
3911 // Relocate the field with the offset of the GOT entry for
3912 // the tp-relative offset of the symbol.
3913 if (gsym != NULL)
3914 {
3915 gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET));
2ea97941 3916 value = gsym->got_offset(GOT_TYPE_TLS_OFFSET);
f5314dd5
DM		 3917 }
3918 else
3919 {
3920 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3921 gold_assert(object->local_has_got_offset(r_sym,
3922 GOT_TYPE_TLS_OFFSET));
2ea97941
ILT		 3923 value = object->local_got_offset(r_sym,
3924 GOT_TYPE_TLS_OFFSET);
f5314dd5
DM		 3925 }
3926 switch (r_type)
3927 {
3928 case elfcpp::R_SPARC_TLS_IE_HI22:
2ea97941 3929 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3930 break;
3931 case elfcpp::R_SPARC_TLS_IE_LO10:
2ea97941 3932 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3933 break;
3934 }
3935 break;
3936 }
3937 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3938 _("unsupported reloc %u"),
3939 r_type);
3940 break;
3941
9efe6174
ILT		 3942 case elfcpp::R_SPARC_TLS_IE_ADD:
3943 // This seems to be mainly so that we can find the addition
3944 // instruction if there is one. There doesn't seem to be any
3945 // actual relocation to apply.
3946 break;
3947
f5314dd5
DM		 3948 case elfcpp::R_SPARC_TLS_LE_HIX22:
3949 // If we're creating a shared library, a dynamic relocation will
3950 // have been created for this location, so do not apply it now.
3951 if (!parameters->options().shared())
3952 {
2ea97941
ILT		 3953 value -= tls_segment->memsz();
3954 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3955 }
3956 break;
3957
3958 case elfcpp::R_SPARC_TLS_LE_LOX10:
3959 // If we're creating a shared library, a dynamic relocation will
3960 // have been created for this location, so do not apply it now.
3961 if (!parameters->options().shared())
3962 {
2ea97941
ILT		 3963 value -= tls_segment->memsz();
3964 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3965 }
3966 break;
3967 }
3968}
3969
a5a5f7a3
DM		 3970// Relax a call instruction.
3971
3972template<int size, bool big_endian>
3973inline void
3974Target_sparc<size, big_endian>::Relocate::relax_call(
3975 Target_sparc<size, big_endian>* target,
3976 unsigned char* view,
3977 const elfcpp::Rela<size, big_endian>& rela,
3978 section_size_type view_size)
3979{
3980 typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
3981 Insntype *wv = reinterpret_cast<Insntype*>(view);
3982 Insntype call_insn, delay_insn, set_insn;
3983 uint32_t op3, reg, off;
3984
3985 // This code tries to relax call instructions that meet
3986 // certain criteria.
3987 //
3988 // The first criteria is that the call must be such that the return
3989 // address which the call writes into %o7 is unused. Two sequences
3990 // meet this criteria, and are used to implement tail calls.
3991 //
3992 // Leaf function tail call:
3993 //
3994 // or %o7, %g0, %ANY_REG
3995 // call FUNC
3996 // or %ANY_REG, %g0, %o7
3997 //
3998 // Non-leaf function tail call:
3999 //
4000 // call FUNC
4001 // restore
4002 //
4003 // The second criteria is that the call destination is close. If
4004 // the displacement can fit in a signed 22-bit immediate field of a
4005 // pre-V9 branch, we can do it. If we are generating a 64-bit
4006 // object or a 32-bit object with ELF machine type EF_SPARC32PLUS,
4007 // and the displacement fits in a signed 19-bit immediate field,
4008 // then we can use a V9 branch.
4009
4010 // Make sure the delay instruction can be safely accessed.
4011 if (rela.get_r_offset() + 8 > view_size)
4012 return;
4013
4014 call_insn = elfcpp::Swap<32, true>::readval(wv);
4015 delay_insn = elfcpp::Swap<32, true>::readval(wv + 1);
4016
4017 // Make sure it is really a call instruction.
4018 if (((call_insn >> 30) & 0x3) != 1)
4019 return;
4020
4021 if (((delay_insn >> 30) & 0x3) != 2)
4022 return;
4023
4024 // Accept only a restore or an integer arithmetic operation whose
4025 // sole side effect is to write the %o7 register (and perhaps set
4026 // the condition codes, which are considered clobbered across
4027 // function calls).
4028 //
4029 // For example, we don't want to match a tagged addition or
4030 // subtraction. We also don't want to match something like a
4031 // divide.
4032 //
4033 // Specifically we accept add{,cc}, and{,cc}, or{,cc},
4034 // xor{,cc}, sub{,cc}, andn{,cc}, orn{,cc}, and xnor{,cc}.
4035
4036 op3 = (delay_insn >> 19) & 0x3f;
4037 reg = (delay_insn >> 25) & 0x1f;
4038 if (op3 != 0x3d
4039 && ((op3 & 0x28) != 0 || reg != 15))
4040 return;
4041
4042 // For non-restore instructions, make sure %o7 isn't
4043 // an input.
4044 if (op3 != 0x3d)
4045 {
4046 // First check RS1
4047 reg = (delay_insn >> 14) & 0x15;
4048 if (reg == 15)
4049 return;
4050
4051 // And if non-immediate, check RS2
4052 if (((delay_insn >> 13) & 1) == 0)
4053 {
4054 reg = (delay_insn & 0x1f);
4055 if (reg == 15)
4056 return;
4057 }
4058 }
4059
4060 // Now check the branch distance. We are called after the
4061 // call has been relocated, so we just have to peek at the
4062 // offset contained in the instruction.
4063 off = call_insn & 0x3fffffff;
4064 if ((off & 0x3fe00000) != 0
4065 && (off & 0x3fe00000) != 0x3fe00000)
4066 return;
4067
4068 if ((size == 64 || target->elf_machine_ == elfcpp::EM_SPARC32PLUS)
4069 && ((off & 0x3c0000) == 0
4070 || (off & 0x3c0000) == 0x3c0000))
4071 {
4072 // ba,pt %xcc, FUNC
4073 call_insn = 0x10680000 | (off & 0x07ffff);
4074 }
4075 else
4076 {
4077 // ba FUNC
4078 call_insn = 0x10800000 | (off & 0x3fffff);
4079 }
4080 elfcpp::Swap<32, true>::writeval(wv, call_insn);
4081
4082 // See if we can NOP out the delay slot instruction. We peek
4083 // at the instruction before the call to make sure we're dealing
4084 // with exactly the:
4085 //
4086 // or %o7, %g0, %ANY_REG
4087 // call
4088 // or %ANY_REG, %g0, %o7
4089 //
4090 // case. Otherwise this might be a tricky piece of hand written
4091 // assembler calculating %o7 in some non-trivial way, and therefore
4092 // we can't be sure that NOP'ing out the delay slot is safe.
4093 if (op3 == 0x02
4094 && rela.get_r_offset() >= 4)
4095 {
4096 if ((delay_insn & ~(0x1f << 14)) != 0x9e100000)
4097 return;
4098
4099 set_insn = elfcpp::Swap<32, true>::readval(wv - 1);
4100 if ((set_insn & ~(0x1f << 25)) != 0x8013c000)
4101 return;
4102
4103 reg = (set_insn >> 25) & 0x1f;
4104 if (reg == 0 || reg == 15)
4105 return;
4106 if (reg != ((delay_insn >> 14) & 0x1f))
4107 return;
4108
4109 // All tests pass, nop it out.
4110 elfcpp::Swap<32, true>::writeval(wv + 1, sparc_nop);
4111 }
4112}
4113
f5314dd5
DM		 4114// Relocate section data.
4115
4116template<int size, bool big_endian>
4117void
4118Target_sparc<size, big_endian>::relocate_section(
4119 const Relocate_info<size, big_endian>* relinfo,
4120 unsigned int sh_type,
4121 const unsigned char* prelocs,
4122 size_t reloc_count,
4123 Output_section* output_section,
4124 bool needs_special_offset_handling,
4125 unsigned char* view,
4126 typename elfcpp::Elf_types<size>::Elf_Addr address,
364c7fa5
ILT		 4127 section_size_type view_size,
4128 const Reloc_symbol_changes* reloc_symbol_changes)
f5314dd5
DM		 4129{
4130 typedef Target_sparc<size, big_endian> Sparc;
4131 typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate;
4132
4133 gold_assert(sh_type == elfcpp::SHT_RELA);
4134
4135 gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA,
4136 Sparc_relocate>(
4137 relinfo,
4138 this,
4139 prelocs,
4140 reloc_count,
4141 output_section,
4142 needs_special_offset_handling,
4143 view,
4144 address,
364c7fa5
ILT		 4145 view_size,
4146 reloc_symbol_changes);
f5314dd5
DM		 4147}
4148
4149// Return the size of a relocation while scanning during a relocatable
4150// link.
4151
4152template<int size, bool big_endian>
4153unsigned int
4154Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc(
4155 unsigned int,
4156 Relobj*)
4157{
4158 // We are always SHT_RELA, so we should never get here.
4159 gold_unreachable();
4160 return 0;
4161}
4162
4163// Scan the relocs during a relocatable link.
4164
4165template<int size, bool big_endian>
4166void
4167Target_sparc<size, big_endian>::scan_relocatable_relocs(
f5314dd5
DM		 4168 Symbol_table* symtab,
4169 Layout* layout,
6fa2a40b 4170 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 4171 unsigned int data_shndx,
4172 unsigned int sh_type,
4173 const unsigned char* prelocs,
4174 size_t reloc_count,
4175 Output_section* output_section,
4176 bool needs_special_offset_handling,
4177 size_t local_symbol_count,
4178 const unsigned char* plocal_symbols,
4179 Relocatable_relocs* rr)
4180{
4181 gold_assert(sh_type == elfcpp::SHT_RELA);
4182
4183 typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA,
4184 Relocatable_size_for_reloc> Scan_relocatable_relocs;
4185
4186 gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
4187 Scan_relocatable_relocs>(
f5314dd5
DM		 4188 symtab,
4189 layout,
4190 object,
4191 data_shndx,
4192 prelocs,
4193 reloc_count,
4194 output_section,
4195 needs_special_offset_handling,
4196 local_symbol_count,
4197 plocal_symbols,
4198 rr);
4199}
4200
7404fe1b 4201// Emit relocations for a section.
f5314dd5
DM		 4202
4203template<int size, bool big_endian>
4204void
7404fe1b 4205Target_sparc<size, big_endian>::relocate_relocs(
f5314dd5
DM		 4206 const Relocate_info<size, big_endian>* relinfo,
4207 unsigned int sh_type,
4208 const unsigned char* prelocs,
4209 size_t reloc_count,
4210 Output_section* output_section,
4211 off_t offset_in_output_section,
4212 const Relocatable_relocs* rr,
4213 unsigned char* view,
4214 typename elfcpp::Elf_types<size>::Elf_Addr view_address,
4215 section_size_type view_size,
4216 unsigned char* reloc_view,
4217 section_size_type reloc_view_size)
4218{
4219 gold_assert(sh_type == elfcpp::SHT_RELA);
4220
7404fe1b 4221 gold::relocate_relocs<size, big_endian, elfcpp::SHT_RELA>(
f5314dd5
DM		 4222 relinfo,
4223 prelocs,
4224 reloc_count,
4225 output_section,
4226 offset_in_output_section,
4227 rr,
4228 view,
4229 view_address,
4230 view_size,
4231 reloc_view,
4232 reloc_view_size);
4233}
4234
4235// Return the value to use for a dynamic which requires special
4236// treatment. This is how we support equality comparisons of function
4237// pointers across shared library boundaries, as described in the
4238// processor specific ABI supplement.
4239
4240template<int size, bool big_endian>
4241uint64_t
4242Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const
4243{
4244 gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset());
4245 return this->plt_section()->address() + gsym->plt_offset();
4246}
4247
a4d85145
DM		 4248// do_make_elf_object to override the same function in the base class.
4249// We need to use a target-specific sub-class of
4250// Sized_relobj_file<size, big_endian> to process SPARC specific bits
4251// of the ELF headers. Hence we need to have our own ELF object creation.
4252
4253template<int size, bool big_endian>
4254Object*
4255Target_sparc<size, big_endian>::do_make_elf_object(
4256 const std::string& name,
4257 Input_file* input_file,
4258 off_t offset, const elfcpp::Ehdr<size, big_endian>& ehdr)
4259{
4260 elfcpp::Elf_Half machine = ehdr.get_e_machine();
4261 elfcpp::Elf_Word flags = ehdr.get_e_flags();
4262 elfcpp::Elf_Word omm, mm;
2e702c99 4263
a4d85145
DM		 4264 switch (machine)
4265 {
4266 case elfcpp::EM_SPARC32PLUS:
4267 this->elf_machine_ = elfcpp::EM_SPARC32PLUS;
4268 break;
4269
4270 case elfcpp::EM_SPARC:
4271 case elfcpp::EM_SPARCV9:
4272 break;
4273
4274 default:
4275 break;
4276 }
4277
4278 if (!this->elf_flags_set_)
4279 {
4280 this->elf_flags_ = flags;
4281 this->elf_flags_set_ = true;
4282 }
4283 else
4284 {
4285 // Accumulate cpu feature bits.
4286 this->elf_flags_ |= (flags & (elfcpp::EF_SPARC_32PLUS
4287 | elfcpp::EF_SPARC_SUN_US1
4288 | elfcpp::EF_SPARC_HAL_R1
4289 | elfcpp::EF_SPARC_SUN_US3));
4290
4291 // Bump the memory model setting to the most restrictive
4292 // one we encounter.
4293 omm = (this->elf_flags_ & elfcpp::EF_SPARCV9_MM);
4294 mm = (flags & elfcpp::EF_SPARCV9_MM);
4295 if (omm != mm)
4296 {
4297 if (mm == elfcpp::EF_SPARCV9_TSO)
4298 {
4299 this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM;
4300 this->elf_flags_ |= elfcpp::EF_SPARCV9_TSO;
4301 }
4302 else if (mm == elfcpp::EF_SPARCV9_PSO
4303 && omm == elfcpp::EF_SPARCV9_RMO)
4304 {
4305 this->elf_flags_ &= ~elfcpp::EF_SPARCV9_MM;
4306 this->elf_flags_ |= elfcpp::EF_SPARCV9_PSO;
4307 }
4308 }
4309 }
4310
4311 // Validate that the little-endian flag matches how we've
4312 // been instantiated.
4313 if (!(flags & elfcpp::EF_SPARC_LEDATA) != big_endian)
4314 {
4315 if (big_endian)
4316 gold_error(_("%s: little endian elf flag set on BE object"),
4317 name.c_str());
4318 else
4319 gold_error(_("%s: little endian elf flag clear on LE object"),
4320 name.c_str());
4321 }
4322
4323 return Target::do_make_elf_object(name, input_file, offset, ehdr);
4324}
4325
4326// Adjust ELF file header.
4327
4328template<int size, bool big_endian>
4329void
4330Target_sparc<size, big_endian>::do_adjust_elf_header(
4331 unsigned char* view,
4332 int len) const
4333{
4334 elfcpp::Ehdr_write<size, big_endian> oehdr(view);
4335
4336 oehdr.put_e_machine(this->elf_machine_);
4337 oehdr.put_e_flags(this->elf_flags_);
4338
4339 Sized_target<size, big_endian>::do_adjust_elf_header(view, len);
4340}
4341
f5314dd5
DM		 4342// The selector for sparc object files.
4343
4344template<int size, bool big_endian>
4345class Target_selector_sparc : public Target_selector
4346{
4347public:
4348 Target_selector_sparc()
4349 : Target_selector(elfcpp::EM_NONE, size, big_endian,
03ef7571
ILT		 4350 (size == 64 ? "elf64-sparc" : "elf32-sparc"),
4351 (size == 64 ? "elf64_sparc" : "elf32_sparc"))
f5314dd5
DM		 4352 { }
4353
2e702c99
RM		 4354 virtual Target*
4355 do_recognize(Input_file*, off_t, int machine, int, int)
f5314dd5
DM		 4356 {
4357 switch (size)
4358 {
4359 case 64:
2ea97941 4360 if (machine != elfcpp::EM_SPARCV9)
f5314dd5
DM		 4361 return NULL;
4362 break;
4363
4364 case 32:
2ea97941
ILT		 4365 if (machine != elfcpp::EM_SPARC
4366 && machine != elfcpp::EM_SPARC32PLUS)
f5314dd5
DM		 4367 return NULL;
4368 break;
4369
4370 default:
4371 return NULL;
4372 }
4373
7f055c20 4374 return this->instantiate_target();
f5314dd5
DM		 4375 }
4376
2e702c99
RM		 4377 virtual Target*
4378 do_instantiate_target()
7f055c20 4379 { return new Target_sparc<size, big_endian>(); }
f5314dd5
DM		 4380};
4381
4382Target_selector_sparc<32, true> target_selector_sparc32;
4383Target_selector_sparc<64, true> target_selector_sparc64;
4384
4385} // End anonymous namespace.
GDB Binutils - Deliverables
This page took 0.407356 seconds and 4 git commands to generate.