gold/sparc.cc

   1 // sparc.cc -- sparc target support for gold.
   2
   3 // Copyright 2008 Free Software Foundation, Inc.
   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"
  37 #include "target.h"
  38 #include "target-reloc.h"
  39 #include "target-select.h"
  40 #include "tls.h"
  41 #include "errors.h"
  42
  43 namespace
  44 {
  45
  46 using namespace gold;
  47
  48 template<int size, bool big_endian>
  49 class Output_data_plt_sparc;
  50
  51 template<int size, bool big_endian>
  52 class Target_sparc : public Sized_target<size, big_endian>
  53 {
  54  public:
  55   typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> Reloc_section;
  56
  57   Target_sparc()
  58     : Sized_target<size, big_endian>(&sparc_info),
  59       got_(NULL), plt_(NULL), rela_dyn_(NULL),
  60       copy_relocs_(NULL), dynbss_(NULL), got_mod_index_offset_(-1U),
  61       tls_get_addr_sym_(NULL)
  62   {
  63   }
  64
  65   // Scan the relocations to look for symbol adjustments.
  66   void
  67   scan_relocs(const General_options& options,
  68               Symbol_table* symtab,
  69               Layout* layout,
  70               Sized_relobj<size, big_endian>* object,
  71               unsigned int data_shndx,
  72               unsigned int sh_type,
  73               const unsigned char* prelocs,
  74               size_t reloc_count,
  75               Output_section* output_section,
  76               bool needs_special_offset_handling,
  77               size_t local_symbol_count,
  78               const unsigned char* plocal_symbols);
  79   // Finalize the sections.
  80   void
  81   do_finalize_sections(Layout*);
  82
  83   // Return the value to use for a dynamic which requires special
  84   // treatment.
  85   uint64_t
  86   do_dynsym_value(const Symbol*) const;
  87
  88   // Relocate a section.
  89   void
  90   relocate_section(const Relocate_info<size, big_endian>*,
  91                    unsigned int sh_type,
  92                    const unsigned char* prelocs,
  93                    size_t reloc_count,
  94                    Output_section* output_section,
  95                    bool needs_special_offset_handling,
  96                    unsigned char* view,
  97                    typename elfcpp::Elf_types<size>::Elf_Addr view_address,
  98                    section_size_type view_size);
  99
 100   // Scan the relocs during a relocatable link.
 101   void
 102   scan_relocatable_relocs(const General_options& options,
 103                           Symbol_table* symtab,
 104                           Layout* layout,
 105                           Sized_relobj<size, big_endian>* object,
 106                           unsigned int data_shndx,
 107                           unsigned int sh_type,
 108                           const unsigned char* prelocs,
 109                           size_t reloc_count,
 110                           Output_section* output_section,
 111                           bool needs_special_offset_handling,
 112                           size_t local_symbol_count,
 113                           const unsigned char* plocal_symbols,
 114                           Relocatable_relocs*);
 115
 116   // Relocate a section during a relocatable link.
 117   void
 118   relocate_for_relocatable(const Relocate_info<size, big_endian>*,
 119                            unsigned int sh_type,
 120                            const unsigned char* prelocs,
 121                            size_t reloc_count,
 122                            Output_section* output_section,
 123                            off_t offset_in_output_section,
 124                            const Relocatable_relocs*,
 125                            unsigned char* view,
 126                            typename elfcpp::Elf_types<size>::Elf_Addr view_address,
 127                            section_size_type view_size,
 128                            unsigned char* reloc_view,
 129                            section_size_type reloc_view_size);
 130   // Return whether SYM is defined by the ABI.
 131   bool
 132   do_is_defined_by_abi(Symbol* sym) const
 133   {
 134     // XXX Really need to support this better...
 135     if (sym->type() == elfcpp::STT_SPARC_REGISTER)
 136       return 1;
 137
 138     return strcmp(sym->name(), "___tls_get_addr") == 0;
 139   }
 140
 141   // Return the size of the GOT section.
 142   section_size_type
 143   got_size()
 144   {
 145     gold_assert(this->got_ != NULL);
 146     return this->got_->data_size();
 147   }
 148
 149  private:
 150
 151   // The class which scans relocations.
 152   struct Scan
 153   {
 154     inline void
 155     local(const General_options& options, Symbol_table* symtab,
 156           Layout* layout, Target_sparc* target,
 157           Sized_relobj<size, big_endian>* object,
 158           unsigned int data_shndx,
 159           Output_section* output_section,
 160           const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
 161           const elfcpp::Sym<size, big_endian>& lsym);
 162
 163     inline void
 164     global(const General_options& options, Symbol_table* symtab,
 165            Layout* layout, Target_sparc* target,
 166            Sized_relobj<size, big_endian>* object,
 167            unsigned int data_shndx,
 168            Output_section* output_section,
 169            const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
 170            Symbol* gsym);
 171
 172     static void
 173     unsupported_reloc_local(Sized_relobj<size, big_endian>*,
 174                             unsigned int r_type);
 175
 176     static void
 177     unsupported_reloc_global(Sized_relobj<size, big_endian>*,
 178                              unsigned int r_type, Symbol*);
 179
 180     static void
 181     generate_tls_call(Symbol_table* symtab, Layout* layout,
 182                       Target_sparc* target);
 183   };
 184
 185   // The class which implements relocation.
 186   class Relocate
 187   {
 188    public:
 189     Relocate()
 190       : ignore_gd_add_(false)
 191     { }
 192
 193     ~Relocate()
 194     {
 195       if (this->ignore_gd_add_)
 196         {
 197           // FIXME: This needs to specify the location somehow.
 198           gold_error(_("missing expected TLS relocation"));
 199         }
 200     }
 201
 202     // Do a relocation.  Return false if the caller should not issue
 203     // any warnings about this relocation.
 204     inline bool
 205     relocate(const Relocate_info<size, big_endian>*, Target_sparc*,
 206              size_t relnum, const elfcpp::Rela<size, big_endian>&,
 207              unsigned int r_type, const Sized_symbol<size>*,
 208              const Symbol_value<size>*,
 209              unsigned char*,
 210              typename elfcpp::Elf_types<size>::Elf_Addr,
 211              section_size_type);
 212
 213    private:
 214     // Do a TLS relocation.
 215     inline void
 216     relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target,
 217                  size_t relnum, const elfcpp::Rela<size, big_endian>&,
 218                  unsigned int r_type, const Sized_symbol<size>*,
 219                  const Symbol_value<size>*,
 220                  unsigned char*,
 221                  typename elfcpp::Elf_types<size>::Elf_Addr,
 222                  section_size_type);
 223
 224     // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD
 225     bool ignore_gd_add_;
 226   };
 227
 228   // A class which returns the size required for a relocation type,
 229   // used while scanning relocs during a relocatable link.
 230   class Relocatable_size_for_reloc
 231   {
 232    public:
 233     unsigned int
 234     get_size_for_reloc(unsigned int, Relobj*);
 235   };
 236
 237   // Get the GOT section, creating it if necessary.
 238   Output_data_got<size, big_endian>*
 239   got_section(Symbol_table*, Layout*);
 240
 241   // Create a PLT entry for a global symbol.
 242   void
 243   make_plt_entry(Symbol_table*, Layout*, Symbol*);
 244
 245   // Create a GOT entry for the TLS module index.
 246   unsigned int
 247   got_mod_index_entry(Symbol_table* symtab, Layout* layout,
 248                       Sized_relobj<size, big_endian>* object);
 249
 250   // Return the gsym for "__tls_get_addr".  Cache if not already
 251   // cached.
 252   Symbol*
 253   tls_get_addr_sym(Symbol_table* symtab)
 254   {
 255     if (!this->tls_get_addr_sym_)
 256       this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL);
 257     gold_assert(this->tls_get_addr_sym_);
 258     return this->tls_get_addr_sym_;
 259   }
 260
 261   // Get the PLT section.
 262   const Output_data_plt_sparc<size, big_endian>*
 263   plt_section() const
 264   {
 265     gold_assert(this->plt_ != NULL);
 266     return this->plt_;
 267   }
 268
 269   // Get the dynamic reloc section, creating it if necessary.
 270   Reloc_section*
 271   rela_dyn_section(Layout*);
 272
 273   // Return true if the symbol may need a COPY relocation.
 274   // References from an executable object to non-function symbols
 275   // defined in a dynamic object may need a COPY relocation.
 276   bool
 277   may_need_copy_reloc(Symbol* gsym)
 278   {
 279     return (!parameters->options().shared()
 280             && gsym->is_from_dynobj()
 281             && gsym->type() != elfcpp::STT_FUNC);
 282   }
 283
 284   // Copy a relocation against a global symbol.
 285   void
 286   copy_reloc(const General_options*, Symbol_table*, Layout*,
 287              Sized_relobj<size, big_endian>*, unsigned int,
 288              Output_section*, Symbol*, const elfcpp::Rela<size, big_endian>&);
 289
 290   // Information about this specific target which we pass to the
 291   // general Target structure.
 292   static Target::Target_info sparc_info;
 293
 294   // The types of GOT entries needed for this platform.
 295   enum Got_type
 296   {
 297     GOT_TYPE_STANDARD = 0,      // GOT entry for a regular symbol
 298     GOT_TYPE_TLS_OFFSET = 1,    // GOT entry for TLS offset
 299     GOT_TYPE_TLS_PAIR = 2,      // GOT entry for TLS module/offset pair
 300   };
 301
 302   // The GOT section.
 303   Output_data_got<size, big_endian>* got_;
 304   // The PLT section.
 305   Output_data_plt_sparc<size, big_endian>* plt_;
 306   // The dynamic reloc section.
 307   Reloc_section* rela_dyn_;
 308   // Relocs saved to avoid a COPY reloc.
 309   Copy_relocs<size, big_endian>* copy_relocs_;
 310   // Space for variables copied with a COPY reloc.
 311   Output_data_space* dynbss_;
 312   // Offset of the GOT entry for the TLS module index;
 313   unsigned int got_mod_index_offset_;
 314   // Cached pointer to __tls_get_addr symbol
 315   Symbol* tls_get_addr_sym_;
 316 };
 317
 318 template<>
 319 Target::Target_info Target_sparc<32, true>::sparc_info =
 320 {
 321   32,                   // size
 322   true,                 // is_big_endian
 323   elfcpp::EM_SPARC,     // machine_code
 324   false,                // has_make_symbol
 325   false,                // has_resolve
 326   false,                // has_code_fill
 327   true,                 // is_default_stack_executable
 328   '\0',                 // wrap_char
 329   "/usr/lib/ld.so.1",   // dynamic_linker
 330   0x00010000,           // default_text_segment_address
 331   64 * 1024,            // abi_pagesize (overridable by -z max-page-size)
 332   8 * 1024              // common_pagesize (overridable by -z common-page-size)
 333 };
 334
 335 template<>
 336 Target::Target_info Target_sparc<64, true>::sparc_info =
 337 {
 338   64,                   // size
 339   true,                 // is_big_endian
 340   elfcpp::EM_SPARCV9,   // machine_code
 341   false,                // has_make_symbol
 342   false,                // has_resolve
 343   false,                // has_code_fill
 344   true,                 // is_default_stack_executable
 345   '\0',                 // wrap_char
 346   "/usr/lib/sparcv9/ld.so.1",   // dynamic_linker
 347   0x100000,             // default_text_segment_address
 348   64 * 1024,            // abi_pagesize (overridable by -z max-page-size)
 349   8 * 1024              // common_pagesize (overridable by -z common-page-size)
 350 };
 351
 352 // We have to take care here, even when operating in little-endian
 353 // mode, sparc instructions are still big endian.
 354 template<int size, bool big_endian>
 355 class Sparc_relocate_functions
 356 {
 357 private:
 358   // Do a simple relocation with the addend in the relocation.
 359   template<int valsize>
 360   static inline void
 361   rela(unsigned char* view,
 362        unsigned int right_shift,
 363        typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
 364        typename elfcpp::Swap<size, big_endian>::Valtype value,
 365        typename elfcpp::Swap<size, big_endian>::Valtype addend)
 366   {
 367     typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
 368     Valtype* wv = reinterpret_cast<Valtype*>(view);
 369     Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
 370     Valtype reloc = ((value + addend) >> right_shift);
 371
 372     val &= ~dst_mask;
 373     reloc &= dst_mask;
 374
 375     elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
 376   }
 377
 378   // Do a simple relocation using a symbol value with the addend in
 379   // the relocation.
 380   template<int valsize>
 381   static inline void
 382   rela(unsigned char* view,
 383        unsigned int right_shift,
 384        typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
 385        const Sized_relobj<size, big_endian>* object,
 386        const Symbol_value<size>* psymval,
 387        typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
 388   {
 389     typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
 390     Valtype* wv = reinterpret_cast<Valtype*>(view);
 391     Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
 392     Valtype reloc = (psymval->value(object, addend) >> right_shift);
 393
 394     val &= ~dst_mask;
 395     reloc &= dst_mask;
 396
 397     elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
 398   }
 399
 400   // Do a simple relocation using a symbol value with the addend in
 401   // the relocation, unaligned.
 402   template<int valsize>
 403   static inline void
 404   rela_ua(unsigned char* view,
 405           unsigned int right_shift, elfcpp::Elf_Xword dst_mask,
 406           const Sized_relobj<size, big_endian>* object,
 407           const Symbol_value<size>* psymval,
 408           typename elfcpp::Swap<size, big_endian>::Valtype addend)
 409   {
 410     typedef typename elfcpp::Swap_unaligned<valsize,
 411             big_endian>::Valtype Valtype;
 412     unsigned char* wv = view;
 413     Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv);
 414     Valtype reloc = (psymval->value(object, addend) >> right_shift);
 415
 416     val &= ~dst_mask;
 417     reloc &= dst_mask;
 418
 419     elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc);
 420   }
 421
 422   // Do a simple PC relative relocation with a Symbol_value with the
 423   // addend in the relocation.
 424   template<int valsize>
 425   static inline void
 426   pcrela(unsigned char* view,
 427          unsigned int right_shift,
 428          typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
 429          const Sized_relobj<size, big_endian>* object,
 430          const Symbol_value<size>* psymval,
 431          typename elfcpp::Swap<size, big_endian>::Valtype addend,
 432          typename elfcpp::Elf_types<size>::Elf_Addr address)
 433   {
 434     typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
 435     Valtype* wv = reinterpret_cast<Valtype*>(view);
 436     Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
 437     Valtype reloc = ((psymval->value(object, addend) - address)
 438                      >> right_shift);
 439
 440     val &= ~dst_mask;
 441     reloc &= dst_mask;
 442
 443     elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
 444   }
 445
 446   template<int valsize>
 447   static inline void
 448   pcrela_unaligned(unsigned char* view,
 449                    const Sized_relobj<size, big_endian>* object,
 450                    const Symbol_value<size>* psymval,
 451                    typename elfcpp::Swap<size, big_endian>::Valtype addend,
 452                    typename elfcpp::Elf_types<size>::Elf_Addr address)
 453   {
 454     typedef typename elfcpp::Swap_unaligned<valsize,
 455             big_endian>::Valtype Valtype;
 456     unsigned char* wv = view;
 457     Valtype reloc = (psymval->value(object, addend) - address);
 458
 459     elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc);
 460   }
 461
 462   typedef Sparc_relocate_functions<size, big_endian> This;
 463   typedef Sparc_relocate_functions<size, true> This_insn;
 464
 465 public:
 466   // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2
 467   static inline void
 468   wdisp30(unsigned char* view,
 469            const Sized_relobj<size, big_endian>* object,
 470            const Symbol_value<size>* psymval,
 471            typename elfcpp::Elf_types<size>::Elf_Addr addend,
 472            typename elfcpp::Elf_types<size>::Elf_Addr address)
 473   {
 474     This_insn::template pcrela<32>(view, 2, 0x3fffffff, object,
 475                                    psymval, addend, address);
 476   }
 477
 478   // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2
 479   static inline void
 480   wdisp22(unsigned char* view,
 481            const Sized_relobj<size, big_endian>* object,
 482            const Symbol_value<size>* psymval,
 483            typename elfcpp::Elf_types<size>::Elf_Addr addend,
 484            typename elfcpp::Elf_types<size>::Elf_Addr address)
 485   {
 486     This_insn::template pcrela<32>(view, 2, 0x003fffff, object,
 487                                    psymval, addend, address);
 488   }
 489
 490   // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2
 491   static inline void
 492   wdisp19(unsigned char* view,
 493           const Sized_relobj<size, big_endian>* object,
 494           const Symbol_value<size>* psymval,
 495           typename elfcpp::Elf_types<size>::Elf_Addr addend,
 496           typename elfcpp::Elf_types<size>::Elf_Addr address)
 497   {
 498     This_insn::template pcrela<32>(view, 2, 0x0007ffff, object,
 499                                    psymval, addend, address);
 500   }
 501
 502   // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2
 503   static inline void
 504   wdisp16(unsigned char* view,
 505           const Sized_relobj<size, big_endian>* object,
 506           const Symbol_value<size>* psymval,
 507           typename elfcpp::Elf_types<size>::Elf_Addr addend,
 508           typename elfcpp::Elf_types<size>::Elf_Addr address)
 509   {
 510     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 511     Valtype* wv = reinterpret_cast<Valtype*>(view);
 512     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 513     Valtype reloc = ((psymval->value(object, addend) - address)
 514                      >> 2);
 515
 516     // The relocation value is split between the low 14 bits,
 517     // and bits 20-21.
 518     val &= ~((0x3 << 20) | 0x3fff);
 519     reloc = (((reloc & 0xc000) << (20 - 14))
 520              | (reloc & 0x3ffff));
 521
 522     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 523   }
 524
 525   // R_SPARC_PC22: (Symbol + Addend - Address) >> 10
 526   static inline void
 527   pc22(unsigned char* view,
 528        const Sized_relobj<size, big_endian>* object,
 529        const Symbol_value<size>* psymval,
 530        typename elfcpp::Elf_types<size>::Elf_Addr addend,
 531        typename elfcpp::Elf_types<size>::Elf_Addr address)
 532   {
 533     This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
 534                                    psymval, addend, address);
 535   }
 536
 537   // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff
 538   static inline void
 539   pc10(unsigned char* view,
 540        const Sized_relobj<size, big_endian>* object,
 541        const Symbol_value<size>* psymval,
 542        typename elfcpp::Elf_types<size>::Elf_Addr addend,
 543        typename elfcpp::Elf_types<size>::Elf_Addr address)
 544   {
 545     This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
 546                                    psymval, addend, address);
 547   }
 548
 549   // R_SPARC_HI22: (Symbol + Addend) >> 10
 550   static inline void
 551   hi22(unsigned char* view,
 552        typename elfcpp::Elf_types<size>::Elf_Addr value,
 553        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 554   {
 555     This_insn::template rela<32>(view, 10, 0x003fffff, value, addend);
 556   }
 557
 558   // R_SPARC_HI22: (Symbol + Addend) >> 10
 559   static inline void
 560   hi22(unsigned char* view,
 561        const Sized_relobj<size, big_endian>* object,
 562        const Symbol_value<size>* psymval,
 563        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 564   {
 565     This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend);
 566   }
 567
 568   // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10
 569   static inline void
 570   pcplt22(unsigned char* view,
 571           const Sized_relobj<size, big_endian>* object,
 572           const Symbol_value<size>* psymval,
 573           typename elfcpp::Elf_types<size>::Elf_Addr addend,
 574           typename elfcpp::Elf_types<size>::Elf_Addr address)
 575   {
 576     This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
 577                                    psymval, addend, address);
 578   }
 579
 580   // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
 581   static inline void
 582   lo10(unsigned char* view,
 583        typename elfcpp::Elf_types<size>::Elf_Addr value,
 584        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 585   {
 586     This_insn::template rela<32>(view, 0, 0x000003ff, value, addend);
 587   }
 588
 589   // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
 590   static inline void
 591   lo10(unsigned char* view,
 592        const Sized_relobj<size, big_endian>* object,
 593        const Symbol_value<size>* psymval,
 594        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 595   {
 596     This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
 597   }
 598
 599   // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
 600   static inline void
 601   lo10(unsigned char* view,
 602        const Sized_relobj<size, big_endian>* object,
 603        const Symbol_value<size>* psymval,
 604        typename elfcpp::Elf_types<size>::Elf_Addr addend,
 605        typename elfcpp::Elf_types<size>::Elf_Addr address)
 606   {
 607     This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
 608                                    psymval, addend, address);
 609   }
 610
 611   // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2
 612   static inline void
 613   olo10(unsigned char* view,
 614         const Sized_relobj<size, big_endian>* object,
 615         const Symbol_value<size>* psymval,
 616         typename elfcpp::Elf_types<size>::Elf_Addr addend,
 617         typename elfcpp::Elf_types<size>::Elf_Addr addend2)
 618   {
 619     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 620     Valtype* wv = reinterpret_cast<Valtype*>(view);
 621     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 622     Valtype reloc = psymval->value(object, addend);
 623
 624     val &= ~0x1fff;
 625     reloc &= 0x3ff;
 626     reloc += addend2;
 627     reloc &= 0x1fff;
 628
 629     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 630   }
 631
 632   // R_SPARC_22: (Symbol + Addend)
 633   static inline void
 634   rela32_22(unsigned char* view,
 635             const Sized_relobj<size, big_endian>* object,
 636             const Symbol_value<size>* psymval,
 637             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 638   {
 639     This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend);
 640   }
 641
 642   // R_SPARC_13: (Symbol + Addend)
 643   static inline void
 644   rela32_13(unsigned char* view,
 645             typename elfcpp::Elf_types<size>::Elf_Addr value,
 646             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 647   {
 648     This_insn::template rela<32>(view, 0, 0x00001fff, value, addend);
 649   }
 650
 651   // R_SPARC_13: (Symbol + Addend)
 652   static inline void
 653   rela32_13(unsigned char* view,
 654             const Sized_relobj<size, big_endian>* object,
 655             const Symbol_value<size>* psymval,
 656             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 657   {
 658     This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend);
 659   }
 660
 661   // R_SPARC_UA16: (Symbol + Addend)
 662   static inline void
 663   ua16(unsigned char* view,
 664        const Sized_relobj<size, big_endian>* object,
 665        const Symbol_value<size>* psymval,
 666        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 667   {
 668     This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend);
 669   }
 670
 671   // R_SPARC_UA32: (Symbol + Addend)
 672   static inline void
 673   ua32(unsigned char* view,
 674        const Sized_relobj<size, big_endian>* object,
 675        const Symbol_value<size>* psymval,
 676        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 677   {
 678     This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend);
 679   }
 680
 681   // R_SPARC_UA64: (Symbol + Addend)
 682   static inline void
 683   ua64(unsigned char* view,
 684        const Sized_relobj<size, big_endian>* object,
 685        const Symbol_value<size>* psymval,
 686        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 687   {
 688     This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0,
 689                                object, psymval, addend);
 690   }
 691
 692   // R_SPARC_DISP8: (Symbol + Addend - Address)
 693   static inline void
 694   disp8(unsigned char* view,
 695         const Sized_relobj<size, big_endian>* object,
 696         const Symbol_value<size>* psymval,
 697         typename elfcpp::Elf_types<size>::Elf_Addr addend,
 698         typename elfcpp::Elf_types<size>::Elf_Addr address)
 699   {
 700     This::template pcrela_unaligned<8>(view, object, psymval,
 701                                        addend, address);
 702   }
 703
 704   // R_SPARC_DISP16: (Symbol + Addend - Address)
 705   static inline void
 706   disp16(unsigned char* view,
 707          const Sized_relobj<size, big_endian>* object,
 708          const Symbol_value<size>* psymval,
 709          typename elfcpp::Elf_types<size>::Elf_Addr addend,
 710          typename elfcpp::Elf_types<size>::Elf_Addr address)
 711   {
 712     This::template pcrela_unaligned<16>(view, object, psymval,
 713                                         addend, address);
 714   }
 715
 716   // R_SPARC_DISP32: (Symbol + Addend - Address)
 717   static inline void
 718   disp32(unsigned char* view,
 719          const Sized_relobj<size, big_endian>* object,
 720          const Symbol_value<size>* psymval,
 721          typename elfcpp::Elf_types<size>::Elf_Addr addend,
 722          typename elfcpp::Elf_types<size>::Elf_Addr address)
 723   {
 724     This::template pcrela_unaligned<32>(view, object, psymval,
 725                                         addend, address);
 726   }
 727
 728   // R_SPARC_DISP64: (Symbol + Addend - Address)
 729   static inline void
 730   disp64(unsigned char* view,
 731          const Sized_relobj<size, big_endian>* object,
 732          const Symbol_value<size>* psymval,
 733          elfcpp::Elf_Xword addend,
 734          typename elfcpp::Elf_types<size>::Elf_Addr address)
 735   {
 736     This::template pcrela_unaligned<64>(view, object, psymval,
 737                                         addend, address);
 738   }
 739
 740   // R_SPARC_H44: (Symbol + Addend) >> 22
 741   static inline void
 742   h44(unsigned char* view,
 743       const Sized_relobj<size, big_endian>* object,
 744       const Symbol_value<size>* psymval,
 745       typename elfcpp::Elf_types<size>::Elf_Addr  addend)
 746   {
 747     This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend);
 748   }
 749
 750   // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff
 751   static inline void
 752   m44(unsigned char* view,
 753       const Sized_relobj<size, big_endian>* object,
 754       const Symbol_value<size>* psymval,
 755       typename elfcpp::Elf_types<size>::Elf_Addr  addend)
 756   {
 757     This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend);
 758   }
 759
 760   // R_SPARC_L44: (Symbol + Addend) & 0xfff
 761   static inline void
 762   l44(unsigned char* view,
 763       const Sized_relobj<size, big_endian>* object,
 764       const Symbol_value<size>* psymval,
 765       typename elfcpp::Elf_types<size>::Elf_Addr  addend)
 766   {
 767     This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend);
 768   }
 769
 770   // R_SPARC_HH22: (Symbol + Addend) >> 42
 771   static inline void
 772   hh22(unsigned char* view,
 773        const Sized_relobj<size, big_endian>* object,
 774        const Symbol_value<size>* psymval,
 775        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 776   {
 777     This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend);
 778   }
 779
 780   // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42
 781   static inline void
 782   pc_hh22(unsigned char* view,
 783           const Sized_relobj<size, big_endian>* object,
 784           const Symbol_value<size>* psymval,
 785           typename elfcpp::Elf_types<size>::Elf_Addr addend,
 786           typename elfcpp::Elf_types<size>::Elf_Addr address)
 787   {
 788     This_insn::template pcrela<32>(view, 42, 0x003fffff, object,
 789                                    psymval, addend, address);
 790   }
 791
 792   // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff
 793   static inline void
 794   hm10(unsigned char* view,
 795        const Sized_relobj<size, big_endian>* object,
 796        const Symbol_value<size>* psymval,
 797        typename elfcpp::Elf_types<size>::Elf_Addr addend)
 798   {
 799     This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend);
 800   }
 801
 802   // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff
 803   static inline void
 804   pc_hm10(unsigned char* view,
 805           const Sized_relobj<size, big_endian>* object,
 806           const Symbol_value<size>* psymval,
 807           typename elfcpp::Elf_types<size>::Elf_Addr addend,
 808           typename elfcpp::Elf_types<size>::Elf_Addr address)
 809   {
 810     This_insn::template pcrela<32>(view, 32, 0x000003ff, object,
 811                                    psymval, addend, address);
 812   }
 813
 814   // R_SPARC_11: (Symbol + Addend)
 815   static inline void
 816   rela32_11(unsigned char* view,
 817             const Sized_relobj<size, big_endian>* object,
 818             const Symbol_value<size>* psymval,
 819             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 820   {
 821     This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend);
 822   }
 823
 824   // R_SPARC_10: (Symbol + Addend)
 825   static inline void
 826   rela32_10(unsigned char* view,
 827             const Sized_relobj<size, big_endian>* object,
 828             const Symbol_value<size>* psymval,
 829             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 830   {
 831     This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
 832   }
 833
 834   // R_SPARC_7: (Symbol + Addend)
 835   static inline void
 836   rela32_7(unsigned char* view,
 837            const Sized_relobj<size, big_endian>* object,
 838            const Symbol_value<size>* psymval,
 839            typename elfcpp::Elf_types<size>::Elf_Addr addend)
 840   {
 841     This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend);
 842   }
 843
 844   // R_SPARC_6: (Symbol + Addend)
 845   static inline void
 846   rela32_6(unsigned char* view,
 847            const Sized_relobj<size, big_endian>* object,
 848            const Symbol_value<size>* psymval,
 849            typename elfcpp::Elf_types<size>::Elf_Addr addend)
 850   {
 851     This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend);
 852   }
 853
 854   // R_SPARC_5: (Symbol + Addend)
 855   static inline void
 856   rela32_5(unsigned char* view,
 857            const Sized_relobj<size, big_endian>* object,
 858            const Symbol_value<size>* psymval,
 859            typename elfcpp::Elf_types<size>::Elf_Addr addend)
 860   {
 861     This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend);
 862   }
 863
 864   // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10
 865   static inline void
 866   ldo_hix22(unsigned char* view,
 867             typename elfcpp::Elf_types<size>::Elf_Addr value,
 868             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 869   {
 870     This_insn::hi22(view, value, addend);
 871   }
 872
 873   // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff
 874   static inline void
 875   ldo_lox10(unsigned char* view,
 876             typename elfcpp::Elf_types<size>::Elf_Addr value,
 877             typename elfcpp::Elf_types<size>::Elf_Addr addend)
 878   {
 879     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 880     Valtype* wv = reinterpret_cast<Valtype*>(view);
 881     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 882     Valtype reloc = (value + addend);
 883
 884     val &= ~0x1fff;
 885     reloc &= 0x3ff;
 886
 887     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 888   }
 889
 890   // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10
 891   static inline void
 892   hix22(unsigned char* view,
 893         typename elfcpp::Elf_types<size>::Elf_Addr value,
 894         typename elfcpp::Elf_types<size>::Elf_Addr addend)
 895   {
 896     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 897     Valtype* wv = reinterpret_cast<Valtype*>(view);
 898     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 899     Valtype reloc = (value + addend);
 900
 901     val &= ~0x3fffff;
 902
 903     reloc ^= ~(Valtype)0;
 904     reloc >>= 10;
 905
 906     reloc &= 0x3fffff;
 907
 908     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 909   }
 910
 911   // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10
 912   static inline void
 913   hix22(unsigned char* view,
 914         const Sized_relobj<size, big_endian>* object,
 915         const Symbol_value<size>* psymval,
 916         typename elfcpp::Elf_types<size>::Elf_Addr addend)
 917   {
 918     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 919     Valtype* wv = reinterpret_cast<Valtype*>(view);
 920     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 921     Valtype reloc = psymval->value(object, addend);
 922
 923     val &= ~0x3fffff;
 924
 925     reloc ^= ~(Valtype)0;
 926     reloc >>= 10;
 927
 928     reloc &= 0x3fffff;
 929
 930     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 931   }
 932
 933
 934   // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00
 935   static inline void
 936   lox10(unsigned char* view,
 937         typename elfcpp::Elf_types<size>::Elf_Addr value,
 938         typename elfcpp::Elf_types<size>::Elf_Addr addend)
 939   {
 940     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 941     Valtype* wv = reinterpret_cast<Valtype*>(view);
 942     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 943     Valtype reloc = (value + addend);
 944
 945     val &= ~0x1fff;
 946     reloc &= 0x3ff;
 947     reloc |= 0x1c00;
 948
 949     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 950   }
 951
 952   // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00
 953   static inline void
 954   lox10(unsigned char* view,
 955         const Sized_relobj<size, big_endian>* object,
 956         const Symbol_value<size>* psymval,
 957         typename elfcpp::Elf_types<size>::Elf_Addr addend)
 958   {
 959     typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
 960     Valtype* wv = reinterpret_cast<Valtype*>(view);
 961     Valtype val = elfcpp::Swap<32, true>::readval(wv);
 962     Valtype reloc = psymval->value(object, addend);
 963
 964     val &= ~0x1fff;
 965     reloc &= 0x3ff;
 966     reloc |= 0x1c00;
 967
 968     elfcpp::Swap<32, true>::writeval(wv, val | reloc);
 969   }
 970 };
 971
 972 // Get the GOT section, creating it if necessary.
 973
 974 template<int size, bool big_endian>
 975 Output_data_got<size, big_endian>*
 976 Target_sparc<size, big_endian>::got_section(Symbol_table* symtab,
 977                                             Layout* layout)
 978 {
 979   if (this->got_ == NULL)
 980     {
 981       gold_assert(symtab != NULL && layout != NULL);
 982
 983       this->got_ = new Output_data_got<size, big_endian>();
 984
 985       layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
 986                                       elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE,
 987                                       this->got_);
 988
 989       // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section.
 990       symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL,
 991                                     this->got_,
 992                                     0, 0, elfcpp::STT_OBJECT,
 993                                     elfcpp::STB_LOCAL,
 994                                     elfcpp::STV_HIDDEN, 0,
 995                                     false, false);
 996     }
 997
 998   return this->got_;
 999 }
1000
1001 // Get the dynamic reloc section, creating it if necessary.
1002
1003 template<int size, bool big_endian>
1004 typename Target_sparc<size, big_endian>::Reloc_section*
1005 Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout)
1006 {
1007   if (this->rela_dyn_ == NULL)
1008     {
1009       gold_assert(layout != NULL);
1010       this->rela_dyn_ = new Reloc_section();
1011       layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
1012                                       elfcpp::SHF_ALLOC, this->rela_dyn_);
1013     }
1014   return this->rela_dyn_;
1015 }
1016
1017 // A class to handle the PLT data.
1018
1019 template<int size, bool big_endian>
1020 class Output_data_plt_sparc : public Output_section_data
1021 {
1022  public:
1023   typedef Output_data_reloc<elfcpp::SHT_RELA, true,
1024                             size, big_endian> Reloc_section;
1025
1026   Output_data_plt_sparc(Layout*);
1027
1028   // Add an entry to the PLT.
1029   void add_entry(Symbol* gsym);
1030
1031   // Return the .rela.plt section data.
1032   const Reloc_section* rel_plt() const
1033   {
1034     return this->rel_;
1035   }
1036
1037  protected:
1038   void do_adjust_output_section(Output_section* os);
1039
1040  private:
1041   // The size of an entry in the PLT.
1042   static const int base_plt_entry_size = (size == 32 ? 12 : 32);
1043
1044   static const unsigned int plt_entries_per_block = 160;
1045   static const unsigned int plt_insn_chunk_size = 24;
1046   static const unsigned int plt_pointer_chunk_size = 8;
1047   static const unsigned int plt_block_size =
1048     (plt_entries_per_block
1049      * (plt_insn_chunk_size + plt_pointer_chunk_size));
1050
1051   // Set the final size.
1052   void
1053   set_final_data_size()
1054   {
1055     unsigned int full_count = this->count_ + 4;
1056     unsigned int extra = (size == 32 ? 4 : 0);
1057
1058     if (size == 32 || full_count < 32768)
1059       this->set_data_size((full_count * base_plt_entry_size) + extra);
1060     else
1061       {
1062         unsigned int ext_cnt = full_count - 32768;
1063
1064         this->set_data_size((32768 * base_plt_entry_size)
1065                             + (ext_cnt
1066                                * (plt_insn_chunk_size
1067                                   + plt_pointer_chunk_size)));
1068       }
1069   }
1070
1071   // Write out the PLT data.
1072   void
1073   do_write(Output_file*);
1074
1075   // The reloc section.
1076   Reloc_section* rel_;
1077   // The number of PLT entries.
1078   unsigned int count_;
1079 };
1080
1081 // Create the PLT section.  The ordinary .got section is an argument,
1082 // since we need to refer to the start.
1083
1084 template<int size, bool big_endian>
1085 Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout)
1086   : Output_section_data(size == 32 ? 4 : 8), count_(0)
1087 {
1088   this->rel_ = new Reloc_section();
1089   layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
1090                                   elfcpp::SHF_ALLOC, this->rel_);
1091 }
1092
1093 template<int size, bool big_endian>
1094 void
1095 Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os)
1096 {
1097   os->set_entsize(0);
1098 }
1099
1100 // Add an entry to the PLT.
1101
1102 template<int size, bool big_endian>
1103 void
1104 Output_data_plt_sparc<size, big_endian>::add_entry(Symbol* gsym)
1105 {
1106   gold_assert(!gsym->has_plt_offset());
1107
1108   unsigned int index = this->count_ + 4;
1109   section_offset_type plt_offset;
1110
1111   if (size == 32 || index < 32768)
1112     plt_offset = index * base_plt_entry_size;
1113   else
1114     {
1115         unsigned int ext_index = index - 32768;
1116
1117         plt_offset = (32768 * base_plt_entry_size)
1118           + ((ext_index / plt_entries_per_block)
1119              * plt_block_size)
1120           + ((ext_index % plt_entries_per_block)
1121              * plt_insn_chunk_size);
1122     }
1123
1124   gsym->set_plt_offset(plt_offset);
1125
1126   ++this->count_;
1127
1128   // Every PLT entry needs a reloc.
1129   gsym->set_needs_dynsym_entry();
1130   this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this,
1131                          plt_offset, 0);
1132
1133   // Note that we don't need to save the symbol.  The contents of the
1134   // PLT are independent of which symbols are used.  The symbols only
1135   // appear in the relocations.
1136 }
1137
1138 static const unsigned int sparc_nop = 0x01000000;
1139 static const unsigned int sparc_sethi_g1 = 0x03000000;
1140 static const unsigned int sparc_branch_always = 0x30800000;
1141 static const unsigned int sparc_branch_always_pt = 0x30680000;
1142 static const unsigned int sparc_mov = 0x80100000;
1143 static const unsigned int sparc_mov_g0_o0 = 0x90100000;
1144 static const unsigned int sparc_mov_o7_g5 = 0x8a10000f;
1145 static const unsigned int sparc_call_plus_8 = 0x40000002;
1146 static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000;
1147 static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001;
1148 static const unsigned int sparc_mov_g5_o7 = 0x9e100005;
1149
1150 // Write out the PLT.
1151
1152 template<int size, bool big_endian>
1153 void
1154 Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of)
1155 {
1156   const off_t offset = this->offset();
1157   const section_size_type oview_size =
1158     convert_to_section_size_type(this->data_size());
1159   unsigned char* const oview = of->get_output_view(offset, oview_size);
1160   unsigned char* pov = oview;
1161
1162   memset(pov, 0, base_plt_entry_size * 4);
1163   pov += base_plt_entry_size * 4;
1164
1165   unsigned int plt_offset = base_plt_entry_size * 4;
1166   const unsigned int count = this->count_;
1167
1168   if (size == 64)
1169     {
1170       unsigned int limit;
1171
1172       limit = (count > 32768 ? 32768 : count);
1173
1174       for (unsigned int i = 0; i < limit; ++i)
1175         {
1176           elfcpp::Swap<32, true>::writeval(pov + 0x00,
1177                                            sparc_sethi_g1 + plt_offset);
1178           elfcpp::Swap<32, true>::writeval(pov + 0x04,
1179                                            sparc_branch_always_pt +
1180                                            (((base_plt_entry_size -
1181                                               (plt_offset + 4)) >> 2) &
1182                                             0x7ffff));
1183           elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1184           elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop);
1185           elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop);
1186           elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop);
1187           elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop);
1188           elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop);
1189
1190           pov += base_plt_entry_size;
1191           plt_offset += base_plt_entry_size;
1192         }
1193
1194       if (count > 32768)
1195         {
1196           unsigned int ext_cnt = count - 32768;
1197           unsigned int blks = ext_cnt / plt_entries_per_block;
1198
1199           for (unsigned int i = 0; i < blks; ++i)
1200             {
1201               unsigned int data_off = (plt_entries_per_block
1202                                        * plt_insn_chunk_size) - 4;
1203
1204               for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1205                 {
1206                   elfcpp::Swap<32, true>::writeval(pov + 0x00,
1207                                                    sparc_mov_o7_g5);
1208                   elfcpp::Swap<32, true>::writeval(pov + 0x04,
1209                                                    sparc_call_plus_8);
1210                   elfcpp::Swap<32, true>::writeval(pov + 0x08,
1211                                                    sparc_nop);
1212                   elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1213                                                    sparc_ldx_o7_imm_g1 +
1214                                                    (data_off & 0x1fff));
1215                   elfcpp::Swap<32, true>::writeval(pov + 0x10,
1216                                                    sparc_jmpl_o7_g1_g1);
1217                   elfcpp::Swap<32, true>::writeval(pov + 0x14,
1218                                                    sparc_mov_g5_o7);
1219
1220                   elfcpp::Swap<64, big_endian>::writeval(
1221                                 pov + 0x4 + data_off,
1222                                 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1223
1224                   pov += plt_insn_chunk_size;
1225                   data_off -= 16;
1226                 }
1227             }
1228
1229           unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block;
1230           for (unsigned int i = 0; i < sub_blk_cnt; ++i)
1231             {
1232               unsigned int data_off = (sub_blk_cnt
1233                                        * plt_insn_chunk_size) - 4;
1234
1235               for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1236                 {
1237                   elfcpp::Swap<32, true>::writeval(pov + 0x00,
1238                                                    sparc_mov_o7_g5);
1239                   elfcpp::Swap<32, true>::writeval(pov + 0x04,
1240                                                    sparc_call_plus_8);
1241                   elfcpp::Swap<32, true>::writeval(pov + 0x08,
1242                                                    sparc_nop);
1243                   elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1244                                                    sparc_ldx_o7_imm_g1 +
1245                                                    (data_off & 0x1fff));
1246                   elfcpp::Swap<32, true>::writeval(pov + 0x10,
1247                                                    sparc_jmpl_o7_g1_g1);
1248                   elfcpp::Swap<32, true>::writeval(pov + 0x14,
1249                                                    sparc_mov_g5_o7);
1250
1251                   elfcpp::Swap<64, big_endian>::writeval(
1252                                 pov + 0x4 + data_off,
1253                                 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1254
1255                   pov += plt_insn_chunk_size;
1256                   data_off -= 16;
1257                 }
1258             }
1259         }
1260     }
1261   else
1262     {
1263       for (unsigned int i = 0; i < count; ++i)
1264         {
1265           elfcpp::Swap<32, true>::writeval(pov + 0x00,
1266                                            sparc_sethi_g1 + plt_offset);
1267           elfcpp::Swap<32, true>::writeval(pov + 0x04,
1268                                            sparc_branch_always +
1269                                            (((- (plt_offset + 4)) >> 2) &
1270                                             0x003fffff));
1271           elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1272
1273           pov += base_plt_entry_size;
1274           plt_offset += base_plt_entry_size;
1275         }
1276
1277       elfcpp::Swap<32, true>::writeval(pov, sparc_nop);
1278       pov += 4;
1279     }
1280
1281   gold_assert(static_cast<section_size_type>(pov - oview) == oview_size);
1282
1283   of->write_output_view(offset, oview_size, oview);
1284 }
1285
1286 // Create a PLT entry for a global symbol.
1287
1288 template<int size, bool big_endian>
1289 void
1290 Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab,
1291                                                Layout* layout,
1292                                                Symbol* gsym)
1293 {
1294   if (gsym->has_plt_offset())
1295     return;
1296
1297   if (this->plt_ == NULL)
1298     {
1299       // Create the GOT sections first.
1300       this->got_section(symtab, layout);
1301
1302       this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout);
1303       layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS,
1304                                       (elfcpp::SHF_ALLOC
1305                                        | elfcpp::SHF_EXECINSTR
1306                                        | elfcpp::SHF_WRITE),
1307                                       this->plt_);
1308
1309       // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section.
1310       symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL,
1311                                     this->plt_,
1312                                     0, 0, elfcpp::STT_OBJECT,
1313                                     elfcpp::STB_LOCAL,
1314                                     elfcpp::STV_HIDDEN, 0,
1315                                     false, false);
1316     }
1317
1318   this->plt_->add_entry(gsym);
1319 }
1320
1321 // Create a GOT entry for the TLS module index.
1322
1323 template<int size, bool big_endian>
1324 unsigned int
1325 Target_sparc<size, big_endian>::got_mod_index_entry(Symbol_table* symtab,
1326                                                     Layout* layout,
1327                                                     Sized_relobj<size, big_endian>* object)
1328 {
1329   if (this->got_mod_index_offset_ == -1U)
1330     {
1331       gold_assert(symtab != NULL && layout != NULL && object != NULL);
1332       Reloc_section* rela_dyn = this->rela_dyn_section(layout);
1333       Output_data_got<size, big_endian>* got;
1334       unsigned int got_offset;
1335
1336       got = this->got_section(symtab, layout);
1337       got_offset = got->add_constant(0);
1338       rela_dyn->add_local(object, 0,
1339                           (size == 64 ?
1340                            elfcpp::R_SPARC_TLS_DTPMOD64 :
1341                            elfcpp::R_SPARC_TLS_DTPMOD32), got,
1342                           got_offset, 0);
1343       got->add_constant(0);
1344       this->got_mod_index_offset_ = got_offset;
1345     }
1346   return this->got_mod_index_offset_;
1347 }
1348
1349 // Handle a relocation against a non-function symbol defined in a
1350 // dynamic object.  The traditional way to handle this is to generate
1351 // a COPY relocation to copy the variable at runtime from the shared
1352 // object into the executable's data segment.  However, this is
1353 // undesirable in general, as if the size of the object changes in the
1354 // dynamic object, the executable will no longer work correctly.  If
1355 // this relocation is in a writable section, then we can create a
1356 // dynamic reloc and the dynamic linker will resolve it to the correct
1357 // address at runtime.  However, we do not want do that if the
1358 // relocation is in a read-only section, as it would prevent the
1359 // readonly segment from being shared.  And if we have to eventually
1360 // generate a COPY reloc, then any dynamic relocations will be
1361 // useless.  So this means that if this is a writable section, we need
1362 // to save the relocation until we see whether we have to create a
1363 // COPY relocation for this symbol for any other relocation.
1364
1365 template<int size, bool big_endian>
1366 void
1367 Target_sparc<size, big_endian>::copy_reloc(const General_options* options,
1368                                            Symbol_table* symtab,
1369                                            Layout* layout,
1370                                            Sized_relobj<size, big_endian>* object,
1371                                            unsigned int data_shndx,
1372                                            Output_section* output_section,
1373                                            Symbol* gsym,
1374                                            const elfcpp::Rela<size, big_endian>& rel)
1375 {
1376   Sized_symbol<size>* ssym = symtab->get_sized_symbol<size>(gsym);
1377
1378   if (!Copy_relocs<size, big_endian>::need_copy_reloc(options, object,
1379                                                       data_shndx, ssym))
1380     {
1381       // So far we do not need a COPY reloc.  Save this relocation.
1382       // If it turns out that we never need a COPY reloc for this
1383       // symbol, then we will emit the relocation.
1384       if (this->copy_relocs_ == NULL)
1385         this->copy_relocs_ = new Copy_relocs<size, big_endian>();
1386       this->copy_relocs_->save(ssym, object, data_shndx, output_section, rel);
1387     }
1388   else
1389     {
1390       // Allocate space for this symbol in the .bss section.
1391
1392       typename elfcpp::Elf_types<size>::Elf_WXword symsize = ssym->symsize();
1393
1394       // There is no defined way to determine the required alignment
1395       // of the symbol.  We pick the alignment based on the size.  We
1396       // set an arbitrary maximum of 256.
1397       unsigned int align;
1398       // XXX remove this when bss alignment issue is fixed...
1399       for (align = (size == 32 ? 4 : 8); align < 512; align <<= 1)
1400         if ((symsize & align) != 0)
1401           break;
1402
1403       if (this->dynbss_ == NULL)
1404         {
1405           this->dynbss_ = new Output_data_space(align);
1406           layout->add_output_section_data(".bss",
1407                                           elfcpp::SHT_NOBITS,
1408                                           (elfcpp::SHF_ALLOC
1409                                            | elfcpp::SHF_WRITE),
1410                                           this->dynbss_);
1411         }
1412
1413       Output_data_space* dynbss = this->dynbss_;
1414
1415       if (align > dynbss->addralign())
1416         dynbss->set_space_alignment(align);
1417
1418       section_size_type dynbss_size =
1419         convert_to_section_size_type(dynbss->current_data_size());
1420       dynbss_size = align_address(dynbss_size, align);
1421       section_size_type offset = dynbss_size;
1422       dynbss->set_current_data_size(dynbss_size + symsize);
1423
1424       symtab->define_with_copy_reloc(ssym, dynbss, offset);
1425
1426       // Add the COPY reloc.
1427       Reloc_section* rela_dyn = this->rela_dyn_section(layout);
1428       rela_dyn->add_global(ssym, elfcpp::R_SPARC_COPY, dynbss, offset, 0);
1429     }
1430 }
1431
1432 // Optimize the TLS relocation type based on what we know about the
1433 // symbol.  IS_FINAL is true if the final address of this symbol is
1434 // known at link time.
1435
1436 static tls::Tls_optimization
1437 optimize_tls_reloc(bool is_final, int r_type)
1438 {
1439   // If we are generating a shared library, then we can't do anything
1440   // in the linker.
1441   if (parameters->options().shared())
1442     return tls::TLSOPT_NONE;
1443
1444   switch (r_type)
1445     {
1446     case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
1447     case elfcpp::R_SPARC_TLS_GD_LO10:
1448     case elfcpp::R_SPARC_TLS_GD_ADD:
1449     case elfcpp::R_SPARC_TLS_GD_CALL:
1450       // These are General-Dynamic which permits fully general TLS
1451       // access.  Since we know that we are generating an executable,
1452       // we can convert this to Initial-Exec.  If we also know that
1453       // this is a local symbol, we can further switch to Local-Exec.
1454       if (is_final)
1455         return tls::TLSOPT_TO_LE;
1456       return tls::TLSOPT_TO_IE;
1457
1458     case elfcpp::R_SPARC_TLS_LDM_HI22:  // Local-dynamic
1459     case elfcpp::R_SPARC_TLS_LDM_LO10:
1460     case elfcpp::R_SPARC_TLS_LDM_ADD:
1461     case elfcpp::R_SPARC_TLS_LDM_CALL:
1462       // This is Local-Dynamic, which refers to a local symbol in the
1463       // dynamic TLS block.  Since we know that we generating an
1464       // executable, we can switch to Local-Exec.
1465       return tls::TLSOPT_TO_LE;
1466
1467     case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
1468     case elfcpp::R_SPARC_TLS_LDO_LOX10:
1469     case elfcpp::R_SPARC_TLS_LDO_ADD:
1470       // Another type of Local-Dynamic relocation.
1471       return tls::TLSOPT_TO_LE;
1472
1473     case elfcpp::R_SPARC_TLS_IE_HI22:   // Initial-exec
1474     case elfcpp::R_SPARC_TLS_IE_LO10:
1475     case elfcpp::R_SPARC_TLS_IE_LD:
1476     case elfcpp::R_SPARC_TLS_IE_LDX:
1477       // These are Initial-Exec relocs which get the thread offset
1478       // from the GOT.  If we know that we are linking against the
1479       // local symbol, we can switch to Local-Exec, which links the
1480       // thread offset into the instruction.
1481       if (is_final)
1482         return tls::TLSOPT_TO_LE;
1483       return tls::TLSOPT_NONE;
1484
1485     case elfcpp::R_SPARC_TLS_LE_HIX22:  // Local-exec
1486     case elfcpp::R_SPARC_TLS_LE_LOX10:
1487       // When we already have Local-Exec, there is nothing further we
1488       // can do.
1489       return tls::TLSOPT_NONE;
1490
1491     default:
1492       gold_unreachable();
1493     }
1494 }
1495
1496 // Generate a PLT entry slot for a call to __tls_get_addr
1497 template<int size, bool big_endian>
1498 void
1499 Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab,
1500                                                         Layout* layout,
1501                                                         Target_sparc<size, big_endian>* target)
1502 {
1503   Symbol* gsym = target->tls_get_addr_sym(symtab);
1504
1505   target->make_plt_entry(symtab, layout, gsym);
1506 }
1507
1508 // Report an unsupported relocation against a local symbol.
1509
1510 template<int size, bool big_endian>
1511 void
1512 Target_sparc<size, big_endian>::Scan::unsupported_reloc_local(
1513                         Sized_relobj<size, big_endian>* object,
1514                         unsigned int r_type)
1515 {
1516   gold_error(_("%s: unsupported reloc %u against local symbol"),
1517              object->name().c_str(), r_type);
1518 }
1519
1520 // Scan a relocation for a local symbol.
1521
1522 template<int size, bool big_endian>
1523 inline void
1524 Target_sparc<size, big_endian>::Scan::local(
1525                         const General_options&,
1526                         Symbol_table* symtab,
1527                         Layout* layout,
1528                         Target_sparc<size, big_endian>* target,
1529                         Sized_relobj<size, big_endian>* object,
1530                         unsigned int data_shndx,
1531                         Output_section* output_section,
1532                         const elfcpp::Rela<size, big_endian>& reloc,
1533                         unsigned int r_type,
1534                         const elfcpp::Sym<size, big_endian>& lsym)
1535 {
1536   unsigned int orig_r_type = r_type;
1537
1538   r_type &= 0xff;
1539   switch (r_type)
1540     {
1541     case elfcpp::R_SPARC_NONE:
1542     case elfcpp::R_SPARC_REGISTER:
1543     case elfcpp::R_SPARC_GNU_VTINHERIT:
1544     case elfcpp::R_SPARC_GNU_VTENTRY:
1545       break;
1546
1547     case elfcpp::R_SPARC_64:
1548     case elfcpp::R_SPARC_32:
1549       // If building a shared library (or a position-independent
1550       // executable), we need to create a dynamic relocation for
1551       // this location. The relocation applied at link time will
1552       // apply the link-time value, so we flag the location with
1553       // an R_SPARC_RELATIVE relocation so the dynamic loader can
1554       // relocate it easily.
1555       if (parameters->options().output_is_position_independent())
1556         {
1557           Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1558           unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1559           rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE,
1560                                        output_section, data_shndx,
1561                                        reloc.get_r_offset(),
1562                                        reloc.get_r_addend());
1563         }
1564       break;
1565
1566     case elfcpp::R_SPARC_HIX22:
1567     case elfcpp::R_SPARC_LOX10:
1568     case elfcpp::R_SPARC_H44:
1569     case elfcpp::R_SPARC_M44:
1570     case elfcpp::R_SPARC_L44:
1571     case elfcpp::R_SPARC_HH22:
1572     case elfcpp::R_SPARC_HM10:
1573     case elfcpp::R_SPARC_LM22:
1574     case elfcpp::R_SPARC_UA64:
1575     case elfcpp::R_SPARC_UA32:
1576     case elfcpp::R_SPARC_UA16:
1577     case elfcpp::R_SPARC_HI22:
1578     case elfcpp::R_SPARC_LO10:
1579     case elfcpp::R_SPARC_OLO10:
1580     case elfcpp::R_SPARC_16:
1581     case elfcpp::R_SPARC_11:
1582     case elfcpp::R_SPARC_10:
1583     case elfcpp::R_SPARC_8:
1584     case elfcpp::R_SPARC_7:
1585     case elfcpp::R_SPARC_6:
1586     case elfcpp::R_SPARC_5:
1587       // If building a shared library (or a position-independent
1588       // executable), we need to create a dynamic relocation for
1589       // this location.
1590       if (parameters->options().output_is_position_independent())
1591         {
1592           Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1593           if (lsym.get_st_type() != elfcpp::STT_SECTION)
1594             {
1595               unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1596               rela_dyn->add_local(object, r_sym, orig_r_type, output_section,
1597                                   data_shndx, reloc.get_r_offset(),
1598                                   reloc.get_r_addend());
1599             }
1600           else
1601             {
1602               unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1603               gold_assert(lsym.get_st_value() == 0);
1604               rela_dyn->add_local_relative(object, r_sym, orig_r_type,
1605                                            output_section, data_shndx,
1606                                            reloc.get_r_offset(),
1607                                            reloc.get_r_addend());
1608             }
1609         }
1610       break;
1611
1612     case elfcpp::R_SPARC_WDISP30:
1613     case elfcpp::R_SPARC_WDISP22:
1614     case elfcpp::R_SPARC_WDISP19:
1615     case elfcpp::R_SPARC_WDISP16:
1616     case elfcpp::R_SPARC_DISP8:
1617     case elfcpp::R_SPARC_DISP16:
1618     case elfcpp::R_SPARC_DISP32:
1619     case elfcpp::R_SPARC_DISP64:
1620     case elfcpp::R_SPARC_PC10:
1621     case elfcpp::R_SPARC_PC22:
1622       break;
1623
1624     case elfcpp::R_SPARC_GOT10:
1625     case elfcpp::R_SPARC_GOT13:
1626     case elfcpp::R_SPARC_GOT22:
1627       {
1628         // The symbol requires a GOT entry.
1629         Output_data_got<size, big_endian>* got;
1630         unsigned int r_sym;
1631
1632         got = target->got_section(symtab, layout);
1633         r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1634
1635         // If we are generating a shared object, we need to add a
1636         // dynamic relocation for this symbol's GOT entry.
1637         if (parameters->options().output_is_position_independent())
1638           {
1639             if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD))
1640               {
1641                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1642                 unsigned int off;
1643
1644                 off = got->add_constant(0);
1645                 object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off);
1646                 rela_dyn->add_local_relative(object, r_sym,
1647                                              elfcpp::R_SPARC_RELATIVE,
1648                                              got, off, 0);
1649               }
1650           }
1651         else
1652           got->add_local(object, r_sym, GOT_TYPE_STANDARD);
1653       }
1654       break;
1655
1656       // These are initial TLS relocs, which are expected when
1657       // linking.
1658     case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
1659     case elfcpp::R_SPARC_TLS_GD_LO10:
1660     case elfcpp::R_SPARC_TLS_GD_ADD:
1661     case elfcpp::R_SPARC_TLS_GD_CALL:
1662     case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic
1663     case elfcpp::R_SPARC_TLS_LDM_LO10:
1664     case elfcpp::R_SPARC_TLS_LDM_ADD:
1665     case elfcpp::R_SPARC_TLS_LDM_CALL:
1666     case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
1667     case elfcpp::R_SPARC_TLS_LDO_LOX10:
1668     case elfcpp::R_SPARC_TLS_LDO_ADD:
1669     case elfcpp::R_SPARC_TLS_IE_HI22:   // Initial-exec
1670     case elfcpp::R_SPARC_TLS_IE_LO10:
1671     case elfcpp::R_SPARC_TLS_IE_LD:
1672     case elfcpp::R_SPARC_TLS_IE_LDX:
1673     case elfcpp::R_SPARC_TLS_LE_HIX22:  // Local-exec
1674     case elfcpp::R_SPARC_TLS_LE_LOX10:
1675       {
1676         bool output_is_shared = parameters->options().shared();
1677         const tls::Tls_optimization optimized_type
1678             = optimize_tls_reloc(!output_is_shared, r_type);
1679         switch (r_type)
1680           {
1681           case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
1682           case elfcpp::R_SPARC_TLS_GD_LO10:
1683           case elfcpp::R_SPARC_TLS_GD_ADD:
1684           case elfcpp::R_SPARC_TLS_GD_CALL:
1685             if (optimized_type == tls::TLSOPT_NONE)
1686               {
1687                 // Create a pair of GOT entries for the module index and
1688                 // dtv-relative offset.
1689                 Output_data_got<size, big_endian>* got
1690                     = target->got_section(symtab, layout);
1691                 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1692                 got->add_local_pair_with_rela(object, r_sym,
1693                                               lsym.get_st_shndx(),
1694                                               GOT_TYPE_TLS_PAIR,
1695                                               target->rela_dyn_section(layout),
1696                                               (size == 64 ?
1697                                                elfcpp::R_SPARC_TLS_DTPMOD64 :
1698                                                elfcpp::R_SPARC_TLS_DTPMOD32), 0);
1699                 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
1700                   generate_tls_call(symtab, layout, target);
1701               }
1702             else if (optimized_type != tls::TLSOPT_TO_LE)
1703               unsupported_reloc_local(object, r_type);
1704             break;
1705
1706           case elfcpp::R_SPARC_TLS_LDM_HI22 :   // Local-dynamic
1707           case elfcpp::R_SPARC_TLS_LDM_LO10:
1708           case elfcpp::R_SPARC_TLS_LDM_ADD:
1709           case elfcpp::R_SPARC_TLS_LDM_CALL:
1710             if (optimized_type == tls::TLSOPT_NONE)
1711               {
1712                 // Create a GOT entry for the module index.
1713                 target->got_mod_index_entry(symtab, layout, object);
1714
1715                 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
1716                   generate_tls_call(symtab, layout, target);
1717               }
1718             else if (optimized_type != tls::TLSOPT_TO_LE)
1719               unsupported_reloc_local(object, r_type);
1720             break;
1721
1722           case elfcpp::R_SPARC_TLS_LDO_HIX22:   // Alternate local-dynamic
1723           case elfcpp::R_SPARC_TLS_LDO_LOX10:
1724           case elfcpp::R_SPARC_TLS_LDO_ADD:
1725             break;
1726
1727           case elfcpp::R_SPARC_TLS_IE_HI22:     // Initial-exec
1728           case elfcpp::R_SPARC_TLS_IE_LO10:
1729           case elfcpp::R_SPARC_TLS_IE_LD:
1730           case elfcpp::R_SPARC_TLS_IE_LDX:
1731             layout->set_has_static_tls();
1732             if (optimized_type == tls::TLSOPT_NONE)
1733               {
1734                 // Create a GOT entry for the tp-relative offset.
1735                 Output_data_got<size, big_endian>* got
1736                   = target->got_section(symtab, layout);
1737                 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1738
1739                 if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET))
1740                   {
1741                     Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1742                     unsigned int off = got->add_constant(0);
1743
1744                     object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET,
1745                                                  off);
1746                     rela_dyn->add_local_relative(object, r_sym,
1747                                                  (size == 64 ?
1748                                                   elfcpp::R_SPARC_TLS_TPOFF64 :
1749                                                   elfcpp::R_SPARC_TLS_TPOFF32),
1750                                                  got, off, 0);
1751                   }
1752               }
1753             else if (optimized_type != tls::TLSOPT_TO_LE)
1754               unsupported_reloc_local(object, r_type);
1755             break;
1756
1757           case elfcpp::R_SPARC_TLS_LE_HIX22:    // Local-exec
1758           case elfcpp::R_SPARC_TLS_LE_LOX10:
1759             layout->set_has_static_tls();
1760             if (output_is_shared)
1761               {
1762                 // We need to create a dynamic relocation.
1763                 gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION);
1764                 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
1765                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1766                 rela_dyn->add_local_relative(object, r_sym, r_type,
1767                                              output_section, data_shndx,
1768                                              reloc.get_r_offset(), 0);
1769               }
1770             break;
1771           }
1772       }
1773       break;
1774
1775       // These are relocations which should only be seen by the
1776       // dynamic linker, and should never be seen here.
1777     case elfcpp::R_SPARC_COPY:
1778     case elfcpp::R_SPARC_GLOB_DAT:
1779     case elfcpp::R_SPARC_JMP_SLOT:
1780     case elfcpp::R_SPARC_RELATIVE:
1781     case elfcpp::R_SPARC_TLS_DTPMOD64:
1782     case elfcpp::R_SPARC_TLS_DTPMOD32:
1783     case elfcpp::R_SPARC_TLS_DTPOFF64:
1784     case elfcpp::R_SPARC_TLS_DTPOFF32:
1785     case elfcpp::R_SPARC_TLS_TPOFF64:
1786     case elfcpp::R_SPARC_TLS_TPOFF32:
1787       gold_error(_("%s: unexpected reloc %u in object file"),
1788                  object->name().c_str(), r_type);
1789       break;
1790
1791     default:
1792       unsupported_reloc_local(object, r_type);
1793       break;
1794     }
1795 }
1796
1797 // Report an unsupported relocation against a global symbol.
1798
1799 template<int size, bool big_endian>
1800 void
1801 Target_sparc<size, big_endian>::Scan::unsupported_reloc_global(
1802                         Sized_relobj<size, big_endian>* object,
1803                         unsigned int r_type,
1804                         Symbol* gsym)
1805 {
1806   gold_error(_("%s: unsupported reloc %u against global symbol %s"),
1807              object->name().c_str(), r_type, gsym->demangled_name().c_str());
1808 }
1809
1810 // Scan a relocation for a global symbol.
1811
1812 template<int size, bool big_endian>
1813 inline void
1814 Target_sparc<size, big_endian>::Scan::global(
1815                                 const General_options& options,
1816                                 Symbol_table* symtab,
1817                                 Layout* layout,
1818                                 Target_sparc<size, big_endian>* target,
1819                                 Sized_relobj<size, big_endian>* object,
1820                                 unsigned int data_shndx,
1821                                 Output_section* output_section,
1822                                 const elfcpp::Rela<size, big_endian>& reloc,
1823                                 unsigned int r_type,
1824                                 Symbol* gsym)
1825 {
1826   unsigned int orig_r_type = r_type;
1827
1828   r_type &= 0xff;
1829   switch (r_type)
1830     {
1831     case elfcpp::R_SPARC_NONE:
1832     case elfcpp::R_SPARC_REGISTER:
1833     case elfcpp::R_SPARC_GNU_VTINHERIT:
1834     case elfcpp::R_SPARC_GNU_VTENTRY:
1835       break;
1836
1837     case elfcpp::R_SPARC_PLT64:
1838     case elfcpp::R_SPARC_PLT32:
1839     case elfcpp::R_SPARC_HIPLT22:
1840     case elfcpp::R_SPARC_LOPLT10:
1841     case elfcpp::R_SPARC_PCPLT32:
1842     case elfcpp::R_SPARC_PCPLT22:
1843     case elfcpp::R_SPARC_PCPLT10:
1844     case elfcpp::R_SPARC_WPLT30:
1845       // If the symbol is fully resolved, this is just a PC32 reloc.
1846       // Otherwise we need a PLT entry.
1847       if (gsym->final_value_is_known())
1848         break;
1849       // If building a shared library, we can also skip the PLT entry
1850       // if the symbol is defined in the output file and is protected
1851       // or hidden.
1852       if (gsym->is_defined()
1853           && !gsym->is_from_dynobj()
1854           && !gsym->is_preemptible())
1855         break;
1856       target->make_plt_entry(symtab, layout, gsym);
1857       break;
1858
1859     case elfcpp::R_SPARC_DISP8:
1860     case elfcpp::R_SPARC_DISP16:
1861     case elfcpp::R_SPARC_DISP32:
1862     case elfcpp::R_SPARC_DISP64:
1863     case elfcpp::R_SPARC_PC_HH22:
1864     case elfcpp::R_SPARC_PC_HM10:
1865     case elfcpp::R_SPARC_PC_LM22:
1866     case elfcpp::R_SPARC_PC10:
1867     case elfcpp::R_SPARC_PC22:
1868     case elfcpp::R_SPARC_WDISP30:
1869     case elfcpp::R_SPARC_WDISP22:
1870     case elfcpp::R_SPARC_WDISP19:
1871     case elfcpp::R_SPARC_WDISP16:
1872       {
1873         if (gsym->needs_plt_entry())
1874           target->make_plt_entry(symtab, layout, gsym);
1875         // Make a dynamic relocation if necessary.
1876         int flags = Symbol::NON_PIC_REF;
1877         if (gsym->type() == elfcpp::STT_FUNC)
1878           flags |= Symbol::FUNCTION_CALL;
1879         if (gsym->needs_dynamic_reloc(flags))
1880           {
1881             if (target->may_need_copy_reloc(gsym))
1882               {
1883                 target->copy_reloc(&options, symtab, layout, object,
1884                                    data_shndx, output_section, gsym,
1885                                    reloc);
1886               }
1887             else
1888               {
1889                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1890                 rela_dyn->add_global(gsym, orig_r_type, output_section, object,
1891                                      data_shndx, reloc.get_r_offset(),
1892                                      reloc.get_r_addend());
1893               }
1894           }
1895       }
1896       break;
1897
1898     case elfcpp::R_SPARC_UA64:
1899     case elfcpp::R_SPARC_64:
1900     case elfcpp::R_SPARC_HIX22:
1901     case elfcpp::R_SPARC_LOX10:
1902     case elfcpp::R_SPARC_H44:
1903     case elfcpp::R_SPARC_M44:
1904     case elfcpp::R_SPARC_L44:
1905     case elfcpp::R_SPARC_HH22:
1906     case elfcpp::R_SPARC_HM10:
1907     case elfcpp::R_SPARC_LM22:
1908     case elfcpp::R_SPARC_HI22:
1909     case elfcpp::R_SPARC_LO10:
1910     case elfcpp::R_SPARC_OLO10:
1911     case elfcpp::R_SPARC_UA32:
1912     case elfcpp::R_SPARC_32:
1913     case elfcpp::R_SPARC_UA16:
1914     case elfcpp::R_SPARC_16:
1915     case elfcpp::R_SPARC_11:
1916     case elfcpp::R_SPARC_10:
1917     case elfcpp::R_SPARC_8:
1918     case elfcpp::R_SPARC_7:
1919     case elfcpp::R_SPARC_6:
1920     case elfcpp::R_SPARC_5:
1921       {
1922         // Make a PLT entry if necessary.
1923         if (gsym->needs_plt_entry())
1924           {
1925             target->make_plt_entry(symtab, layout, gsym);
1926             // Since this is not a PC-relative relocation, we may be
1927             // taking the address of a function. In that case we need to
1928             // set the entry in the dynamic symbol table to the address of
1929             // the PLT entry.
1930             if (gsym->is_from_dynobj() && !parameters->options().shared())
1931               gsym->set_needs_dynsym_value();
1932           }
1933         // Make a dynamic relocation if necessary.
1934         if (gsym->needs_dynamic_reloc(Symbol::ABSOLUTE_REF))
1935           {
1936             if (target->may_need_copy_reloc(gsym))
1937               {
1938                 target->copy_reloc(&options, symtab, layout, object,
1939                                    data_shndx, output_section, gsym, reloc);
1940               }
1941             else if ((r_type == elfcpp::R_SPARC_32
1942                       || r_type == elfcpp::R_SPARC_64)
1943                      && gsym->can_use_relative_reloc(false))
1944               {
1945                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1946                 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
1947                                               output_section, object,
1948                                               data_shndx, reloc.get_r_offset(),
1949                                               reloc.get_r_addend());
1950               }
1951             else
1952               {
1953                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1954
1955                 if (gsym->is_from_dynobj()
1956                     || gsym->is_undefined()
1957                     || gsym->is_preemptible())
1958                   rela_dyn->add_global(gsym, orig_r_type, output_section,
1959                                        object, data_shndx,
1960                                        reloc.get_r_offset(),
1961                                        reloc.get_r_addend());
1962                 else
1963                   rela_dyn->add_global_relative(gsym, orig_r_type,
1964                                                 output_section, object,
1965                                                 data_shndx,
1966                                                 reloc.get_r_offset(),
1967                                                 reloc.get_r_addend());
1968               }
1969           }
1970       }
1971       break;
1972
1973     case elfcpp::R_SPARC_GOT10:
1974     case elfcpp::R_SPARC_GOT13:
1975     case elfcpp::R_SPARC_GOT22:
1976       {
1977         // The symbol requires a GOT entry.
1978         Output_data_got<size, big_endian>* got;
1979
1980         got = target->got_section(symtab, layout);
1981         if (gsym->final_value_is_known())
1982           got->add_global(gsym, GOT_TYPE_STANDARD);
1983         else
1984           {
1985             // If this symbol is not fully resolved, we need to add a
1986             // dynamic relocation for it.
1987             Reloc_section* rela_dyn = target->rela_dyn_section(layout);
1988             if (gsym->is_from_dynobj()
1989                 || gsym->is_undefined()
1990                 || gsym->is_preemptible())
1991               got->add_global_with_rela(gsym, GOT_TYPE_STANDARD, rela_dyn,
1992                                         elfcpp::R_SPARC_GLOB_DAT);
1993             else if (!gsym->has_got_offset(GOT_TYPE_STANDARD))
1994               {
1995                 unsigned int off = got->add_constant(0);
1996
1997                 gsym->set_got_offset(GOT_TYPE_STANDARD, off);
1998                 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
1999                                               got, off, 0);
2000               }
2001           }
2002       }
2003       break;
2004
2005       // These are initial tls relocs, which are expected when
2006       // linking.
2007     case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2008     case elfcpp::R_SPARC_TLS_GD_LO10:
2009     case elfcpp::R_SPARC_TLS_GD_ADD:
2010     case elfcpp::R_SPARC_TLS_GD_CALL:
2011     case elfcpp::R_SPARC_TLS_LDM_HI22:  // Local-dynamic
2012     case elfcpp::R_SPARC_TLS_LDM_LO10:
2013     case elfcpp::R_SPARC_TLS_LDM_ADD:
2014     case elfcpp::R_SPARC_TLS_LDM_CALL:
2015     case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2016     case elfcpp::R_SPARC_TLS_LDO_LOX10:
2017     case elfcpp::R_SPARC_TLS_LDO_ADD:
2018     case elfcpp::R_SPARC_TLS_LE_HIX22:
2019     case elfcpp::R_SPARC_TLS_LE_LOX10:
2020     case elfcpp::R_SPARC_TLS_IE_HI22:   // Initial-exec
2021     case elfcpp::R_SPARC_TLS_IE_LO10:
2022     case elfcpp::R_SPARC_TLS_IE_LD:
2023     case elfcpp::R_SPARC_TLS_IE_LDX:
2024       {
2025         const bool is_final = gsym->final_value_is_known();
2026         const tls::Tls_optimization optimized_type
2027             = optimize_tls_reloc(is_final, r_type);
2028         switch (r_type)
2029           {
2030           case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2031           case elfcpp::R_SPARC_TLS_GD_LO10:
2032           case elfcpp::R_SPARC_TLS_GD_ADD:
2033           case elfcpp::R_SPARC_TLS_GD_CALL:
2034             if (optimized_type == tls::TLSOPT_NONE)
2035               {
2036                 // Create a pair of GOT entries for the module index and
2037                 // dtv-relative offset.
2038                 Output_data_got<size, big_endian>* got
2039                     = target->got_section(symtab, layout);
2040                 got->add_global_pair_with_rela(gsym, GOT_TYPE_TLS_PAIR,
2041                                                target->rela_dyn_section(layout),
2042                                                (size == 64 ?
2043                                                 elfcpp::R_SPARC_TLS_DTPMOD64 :
2044                                                 elfcpp::R_SPARC_TLS_DTPMOD32),
2045                                                (size == 64 ?
2046                                                 elfcpp::R_SPARC_TLS_DTPOFF64 :
2047                                                 elfcpp::R_SPARC_TLS_DTPOFF32));
2048
2049                 // Emit R_SPARC_WPLT30 against "__tls_get_addr"
2050                 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
2051                   generate_tls_call(symtab, layout, target);
2052               }
2053             else if (optimized_type == tls::TLSOPT_TO_IE)
2054               {
2055                 // Create a GOT entry for the tp-relative offset.
2056                 Output_data_got<size, big_endian>* got
2057                     = target->got_section(symtab, layout);
2058                 got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET,
2059                                           target->rela_dyn_section(layout),
2060                                           (size == 64 ?
2061                                            elfcpp::R_SPARC_TLS_TPOFF64 :
2062                                            elfcpp::R_SPARC_TLS_TPOFF32));
2063               }
2064             else if (optimized_type != tls::TLSOPT_TO_LE)
2065               unsupported_reloc_global(object, r_type, gsym);
2066             break;
2067
2068           case elfcpp::R_SPARC_TLS_LDM_HI22:    // Local-dynamic
2069           case elfcpp::R_SPARC_TLS_LDM_LO10:
2070           case elfcpp::R_SPARC_TLS_LDM_ADD:
2071           case elfcpp::R_SPARC_TLS_LDM_CALL:
2072             if (optimized_type == tls::TLSOPT_NONE)
2073               {
2074                 // Create a GOT entry for the module index.
2075                 target->got_mod_index_entry(symtab, layout, object);
2076
2077                 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
2078                   generate_tls_call(symtab, layout, target);
2079               }
2080             else if (optimized_type != tls::TLSOPT_TO_LE)
2081               unsupported_reloc_global(object, r_type, gsym);
2082             break;
2083
2084           case elfcpp::R_SPARC_TLS_LDO_HIX22:   // Alternate local-dynamic
2085           case elfcpp::R_SPARC_TLS_LDO_LOX10:
2086           case elfcpp::R_SPARC_TLS_LDO_ADD:
2087             break;
2088
2089           case elfcpp::R_SPARC_TLS_LE_HIX22:
2090           case elfcpp::R_SPARC_TLS_LE_LOX10:
2091             layout->set_has_static_tls();
2092             if (parameters->options().shared())
2093               {
2094                 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2095                 rela_dyn->add_global_relative(gsym, orig_r_type,
2096                                               output_section, object,
2097                                               data_shndx, reloc.get_r_offset(),
2098                                               0);
2099               }
2100             break;
2101
2102           case elfcpp::R_SPARC_TLS_IE_HI22:     // Initial-exec
2103           case elfcpp::R_SPARC_TLS_IE_LO10:
2104           case elfcpp::R_SPARC_TLS_IE_LD:
2105           case elfcpp::R_SPARC_TLS_IE_LDX:
2106             layout->set_has_static_tls();
2107             if (optimized_type == tls::TLSOPT_NONE)
2108               {
2109                 // Create a GOT entry for the tp-relative offset.
2110                 Output_data_got<size, big_endian>* got
2111                   = target->got_section(symtab, layout);
2112                 got->add_global_with_rela(gsym, GOT_TYPE_TLS_OFFSET,
2113                                           target->rela_dyn_section(layout),
2114                                           (size == 64 ?
2115                                            elfcpp::R_SPARC_TLS_TPOFF64 :
2116                                            elfcpp::R_SPARC_TLS_TPOFF32));
2117               }
2118             else if (optimized_type != tls::TLSOPT_TO_LE)
2119               unsupported_reloc_global(object, r_type, gsym);
2120             break;
2121           }
2122       }
2123       break;
2124
2125       // These are relocations which should only be seen by the
2126       // dynamic linker, and should never be seen here.
2127     case elfcpp::R_SPARC_COPY:
2128     case elfcpp::R_SPARC_GLOB_DAT:
2129     case elfcpp::R_SPARC_JMP_SLOT:
2130     case elfcpp::R_SPARC_RELATIVE:
2131     case elfcpp::R_SPARC_TLS_DTPMOD64:
2132     case elfcpp::R_SPARC_TLS_DTPMOD32:
2133     case elfcpp::R_SPARC_TLS_DTPOFF64:
2134     case elfcpp::R_SPARC_TLS_DTPOFF32:
2135     case elfcpp::R_SPARC_TLS_TPOFF64:
2136     case elfcpp::R_SPARC_TLS_TPOFF32:
2137       gold_error(_("%s: unexpected reloc %u in object file"),
2138                  object->name().c_str(), r_type);
2139       break;
2140
2141     default:
2142       unsupported_reloc_global(object, r_type, gsym);
2143       break;
2144     }
2145 }
2146
2147 // Scan relocations for a section.
2148
2149 template<int size, bool big_endian>
2150 void
2151 Target_sparc<size, big_endian>::scan_relocs(
2152                         const General_options& options,
2153                         Symbol_table* symtab,
2154                         Layout* layout,
2155                         Sized_relobj<size, big_endian>* object,
2156                         unsigned int data_shndx,
2157                         unsigned int sh_type,
2158                         const unsigned char* prelocs,
2159                         size_t reloc_count,
2160                         Output_section* output_section,
2161                         bool needs_special_offset_handling,
2162                         size_t local_symbol_count,
2163                         const unsigned char* plocal_symbols)
2164 {
2165   typedef Target_sparc<size, big_endian> Sparc;
2166   typedef typename Target_sparc<size, big_endian>::Scan Scan;
2167
2168   if (sh_type == elfcpp::SHT_REL)
2169     {
2170       gold_error(_("%s: unsupported REL reloc section"),
2171                  object->name().c_str());
2172       return;
2173     }
2174
2175   gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>(
2176     options,
2177     symtab,
2178     layout,
2179     this,
2180     object,
2181     data_shndx,
2182     prelocs,
2183     reloc_count,
2184     output_section,
2185     needs_special_offset_handling,
2186     local_symbol_count,
2187     plocal_symbols);
2188 }
2189
2190 // Finalize the sections.
2191
2192 template<int size, bool big_endian>
2193 void
2194 Target_sparc<size, big_endian>::do_finalize_sections(Layout* layout)
2195 {
2196   // Fill in some more dynamic tags.
2197   Output_data_dynamic* const odyn = layout->dynamic_data();
2198   if (odyn != NULL)
2199     {
2200       if (this->plt_ != NULL)
2201         {
2202           const Output_data* od = this->plt_->rel_plt();
2203           odyn->add_section_size(elfcpp::DT_PLTRELSZ, od);
2204           odyn->add_section_address(elfcpp::DT_JMPREL, od);
2205           odyn->add_constant(elfcpp::DT_PLTREL, elfcpp::DT_RELA);
2206
2207           odyn->add_section_address(elfcpp::DT_PLTGOT, this->plt_);
2208         }
2209
2210       if (this->rela_dyn_ != NULL)
2211         {
2212           const Output_data* od = this->rela_dyn_;
2213           odyn->add_section_address(elfcpp::DT_RELA, od);
2214           odyn->add_section_size(elfcpp::DT_RELASZ, od);
2215           odyn->add_constant(elfcpp::DT_RELAENT,
2216                              elfcpp::Elf_sizes<size>::rela_size);
2217         }
2218
2219       if (!parameters->options().shared())
2220         {
2221           // The value of the DT_DEBUG tag is filled in by the dynamic
2222           // linker at run time, and used by the debugger.
2223           odyn->add_constant(elfcpp::DT_DEBUG, 0);
2224         }
2225     }
2226
2227   // Emit any relocs we saved in an attempt to avoid generating COPY
2228   // relocs.
2229   if (this->copy_relocs_ == NULL)
2230     return;
2231   if (this->copy_relocs_->any_to_emit())
2232     {
2233       Reloc_section* rela_dyn = this->rela_dyn_section(layout);
2234       this->copy_relocs_->emit(rela_dyn);
2235     }
2236   delete this->copy_relocs_;
2237   this->copy_relocs_ = NULL;
2238 }
2239
2240 // Perform a relocation.
2241
2242 template<int size, bool big_endian>
2243 inline bool
2244 Target_sparc<size, big_endian>::Relocate::relocate(
2245                         const Relocate_info<size, big_endian>* relinfo,
2246                         Target_sparc* target,
2247                         size_t relnum,
2248                         const elfcpp::Rela<size, big_endian>& rela,
2249                         unsigned int r_type,
2250                         const Sized_symbol<size>* gsym,
2251                         const Symbol_value<size>* psymval,
2252                         unsigned char* view,
2253                         typename elfcpp::Elf_types<size>::Elf_Addr address,
2254                         section_size_type view_size)
2255 {
2256   r_type &= 0xff;
2257
2258   if (this->ignore_gd_add_)
2259     {
2260       if (r_type != elfcpp::R_SPARC_TLS_GD_ADD)
2261         gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2262                                _("missing expected TLS relocation"));
2263       else
2264         {
2265           this->ignore_gd_add_ = false;
2266           return false;
2267         }
2268     }
2269
2270   typedef Sparc_relocate_functions<size, big_endian> Reloc;
2271
2272   // Pick the value to use for symbols defined in shared objects.
2273   Symbol_value<size> symval;
2274   if (gsym != NULL
2275       && (gsym->is_from_dynobj()
2276           || (parameters->options().shared()
2277               && (gsym->is_undefined() || gsym->is_preemptible())))
2278       && gsym->has_plt_offset())
2279     {
2280       elfcpp::Elf_Xword value;
2281
2282       value = target->plt_section()->address() + gsym->plt_offset();
2283
2284       symval.set_output_value(value);
2285
2286       psymval = &symval;
2287     }
2288
2289   const Sized_relobj<size, big_endian>* object = relinfo->object;
2290   const elfcpp::Elf_Xword addend = rela.get_r_addend();
2291
2292   // Get the GOT offset if needed.  Unlike i386 and x86_64, our GOT
2293   // pointer points to the beginning, not the end, of the table.
2294   // So we just use the plain offset.
2295   bool have_got_offset = false;
2296   unsigned int got_offset = 0;
2297   switch (r_type)
2298     {
2299     case elfcpp::R_SPARC_GOT10:
2300     case elfcpp::R_SPARC_GOT13:
2301     case elfcpp::R_SPARC_GOT22:
2302       if (gsym != NULL)
2303         {
2304           gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD));
2305           got_offset = gsym->got_offset(GOT_TYPE_STANDARD);
2306         }
2307       else
2308         {
2309           unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
2310           gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD));
2311           got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD);
2312         }
2313       have_got_offset = true;
2314       break;
2315
2316     default:
2317       break;
2318     }
2319
2320   switch (r_type)
2321     {
2322     case elfcpp::R_SPARC_NONE:
2323     case elfcpp::R_SPARC_REGISTER:
2324     case elfcpp::R_SPARC_GNU_VTINHERIT:
2325     case elfcpp::R_SPARC_GNU_VTENTRY:
2326       break;
2327
2328     case elfcpp::R_SPARC_8:
2329       Relocate_functions<size, big_endian>::rela8(view, object,
2330                                                   psymval, addend);
2331       break;
2332
2333     case elfcpp::R_SPARC_16:
2334       Relocate_functions<size, big_endian>::rela16(view, object,
2335                                                    psymval, addend);
2336       break;
2337
2338     case elfcpp::R_SPARC_32:
2339       if (!parameters->options().output_is_position_independent())
2340               Relocate_functions<size, big_endian>::rela32(view, object,
2341                                                            psymval, addend);
2342       break;
2343
2344     case elfcpp::R_SPARC_DISP8:
2345       Reloc::disp8(view, object, psymval, addend, address);
2346       break;
2347
2348     case elfcpp::R_SPARC_DISP16:
2349       Reloc::disp16(view, object, psymval, addend, address);
2350       break;
2351
2352     case elfcpp::R_SPARC_DISP32:
2353       Reloc::disp32(view, object, psymval, addend, address);
2354       break;
2355
2356     case elfcpp::R_SPARC_DISP64:
2357       Reloc::disp64(view, object, psymval, addend, address);
2358       break;
2359
2360     case elfcpp::R_SPARC_WDISP30:
2361     case elfcpp::R_SPARC_WPLT30:
2362       Reloc::wdisp30(view, object, psymval, addend, address);
2363       break;
2364
2365     case elfcpp::R_SPARC_WDISP22:
2366       Reloc::wdisp22(view, object, psymval, addend, address);
2367       break;
2368
2369     case elfcpp::R_SPARC_WDISP19:
2370       Reloc::wdisp19(view, object, psymval, addend, address);
2371       break;
2372
2373     case elfcpp::R_SPARC_WDISP16:
2374       Reloc::wdisp16(view, object, psymval, addend, address);
2375       break;
2376
2377     case elfcpp::R_SPARC_HI22:
2378       Reloc::hi22(view, object, psymval, addend);
2379       break;
2380
2381     case elfcpp::R_SPARC_22:
2382       Reloc::rela32_22(view, object, psymval, addend);
2383       break;
2384
2385     case elfcpp::R_SPARC_13:
2386       Reloc::rela32_13(view, object, psymval, addend);
2387       break;
2388
2389     case elfcpp::R_SPARC_LO10:
2390       Reloc::lo10(view, object, psymval, addend);
2391       break;
2392
2393     case elfcpp::R_SPARC_GOT10:
2394       Reloc::lo10(view, got_offset, addend);
2395       break;
2396
2397     case elfcpp::R_SPARC_GOT13:
2398       Reloc::rela32_13(view, got_offset, addend);
2399       break;
2400
2401     case elfcpp::R_SPARC_GOT22:
2402       Reloc::hi22(view, got_offset, addend);
2403       break;
2404
2405     case elfcpp::R_SPARC_PC10:
2406       Reloc::pc10(view, object, psymval, addend, address);
2407       break;
2408
2409     case elfcpp::R_SPARC_PC22:
2410       Reloc::pc22(view, object, psymval, addend, address);
2411       break;
2412
2413     case elfcpp::R_SPARC_TLS_DTPOFF32:
2414     case elfcpp::R_SPARC_UA32:
2415       Reloc::ua32(view, object, psymval, addend);
2416       break;
2417
2418     case elfcpp::R_SPARC_PLT64:
2419       Relocate_functions<size, big_endian>::rela64(view, object,
2420                                                    psymval, addend);
2421       break;
2422
2423     case elfcpp::R_SPARC_PLT32:
2424       Relocate_functions<size, big_endian>::rela32(view, object,
2425                                                    psymval, addend);
2426       break;
2427
2428     case elfcpp::R_SPARC_HIPLT22:
2429       Reloc::hi22(view, object, psymval, addend);
2430       break;
2431
2432     case elfcpp::R_SPARC_LOPLT10:
2433       Reloc::lo10(view, object, psymval, addend);
2434       break;
2435
2436     case elfcpp::R_SPARC_PCPLT32:
2437       Reloc::disp32(view, object, psymval, addend, address);
2438       break;
2439
2440     case elfcpp::R_SPARC_PCPLT22:
2441       Reloc::pcplt22(view, object, psymval, addend, address);
2442       break;
2443
2444     case elfcpp::R_SPARC_PCPLT10:
2445       Reloc::lo10(view, object, psymval, addend, address);
2446       break;
2447
2448     case elfcpp::R_SPARC_64:
2449       if (!parameters->options().output_is_position_independent())
2450               Relocate_functions<size, big_endian>::rela64(view, object,
2451                                                            psymval, addend);
2452       break;
2453
2454     case elfcpp::R_SPARC_OLO10:
2455       {
2456         unsigned int addend2 = rela.get_r_info() & 0xffffffff;
2457         addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000;
2458         Reloc::olo10(view, object, psymval, addend, addend2);
2459       }
2460       break;
2461
2462     case elfcpp::R_SPARC_HH22:
2463       Reloc::hh22(view, object, psymval, addend);
2464       break;
2465
2466     case elfcpp::R_SPARC_PC_HH22:
2467       Reloc::pc_hh22(view, object, psymval, addend, address);
2468       break;
2469
2470     case elfcpp::R_SPARC_HM10:
2471       Reloc::hm10(view, object, psymval, addend);
2472       break;
2473
2474     case elfcpp::R_SPARC_PC_HM10:
2475       Reloc::pc_hm10(view, object, psymval, addend, address);
2476       break;
2477
2478     case elfcpp::R_SPARC_LM22:
2479       Reloc::hi22(view, object, psymval, addend);
2480       break;
2481
2482     case elfcpp::R_SPARC_PC_LM22:
2483       Reloc::pcplt22(view, object, psymval, addend, address);
2484       break;
2485
2486     case elfcpp::R_SPARC_11:
2487       Reloc::rela32_11(view, object, psymval, addend);
2488       break;
2489
2490     case elfcpp::R_SPARC_10:
2491       Reloc::rela32_10(view, object, psymval, addend);
2492       break;
2493
2494     case elfcpp::R_SPARC_7:
2495       Reloc::rela32_7(view, object, psymval, addend);
2496       break;
2497
2498     case elfcpp::R_SPARC_6:
2499       Reloc::rela32_6(view, object, psymval, addend);
2500       break;
2501
2502     case elfcpp::R_SPARC_5:
2503       Reloc::rela32_5(view, object, psymval, addend);
2504       break;
2505
2506     case elfcpp::R_SPARC_HIX22:
2507       Reloc::hix22(view, object, psymval, addend);
2508       break;
2509
2510     case elfcpp::R_SPARC_LOX10:
2511       Reloc::lox10(view, object, psymval, addend);
2512       break;
2513
2514     case elfcpp::R_SPARC_H44:
2515       Reloc::h44(view, object, psymval, addend);
2516       break;
2517
2518     case elfcpp::R_SPARC_M44:
2519       Reloc::m44(view, object, psymval, addend);
2520       break;
2521
2522     case elfcpp::R_SPARC_L44:
2523       Reloc::l44(view, object, psymval, addend);
2524       break;
2525
2526     case elfcpp::R_SPARC_TLS_DTPOFF64:
2527     case elfcpp::R_SPARC_UA64:
2528       Reloc::ua64(view, object, psymval, addend);
2529       break;
2530
2531     case elfcpp::R_SPARC_UA16:
2532       Reloc::ua16(view, object, psymval, addend);
2533       break;
2534
2535     case elfcpp::R_SPARC_TLS_GD_HI22:
2536     case elfcpp::R_SPARC_TLS_GD_LO10:
2537     case elfcpp::R_SPARC_TLS_GD_ADD:
2538     case elfcpp::R_SPARC_TLS_GD_CALL:
2539     case elfcpp::R_SPARC_TLS_LDM_HI22:
2540     case elfcpp::R_SPARC_TLS_LDM_LO10:
2541     case elfcpp::R_SPARC_TLS_LDM_ADD:
2542     case elfcpp::R_SPARC_TLS_LDM_CALL:
2543     case elfcpp::R_SPARC_TLS_LDO_HIX22:
2544     case elfcpp::R_SPARC_TLS_LDO_LOX10:
2545     case elfcpp::R_SPARC_TLS_LDO_ADD:
2546     case elfcpp::R_SPARC_TLS_IE_HI22:
2547     case elfcpp::R_SPARC_TLS_IE_LO10:
2548     case elfcpp::R_SPARC_TLS_IE_LD:
2549     case elfcpp::R_SPARC_TLS_IE_LDX:
2550     case elfcpp::R_SPARC_TLS_LE_HIX22:
2551     case elfcpp::R_SPARC_TLS_LE_LOX10:
2552       this->relocate_tls(relinfo, target, relnum, rela,
2553                          r_type, gsym, psymval, view,
2554                          address, view_size);
2555       break;
2556
2557     case elfcpp::R_SPARC_COPY:
2558     case elfcpp::R_SPARC_GLOB_DAT:
2559     case elfcpp::R_SPARC_JMP_SLOT:
2560     case elfcpp::R_SPARC_RELATIVE:
2561       // These are outstanding tls relocs, which are unexpected when
2562       // linking.
2563     case elfcpp::R_SPARC_TLS_DTPMOD64:
2564     case elfcpp::R_SPARC_TLS_DTPMOD32:
2565     case elfcpp::R_SPARC_TLS_TPOFF64:
2566     case elfcpp::R_SPARC_TLS_TPOFF32:
2567       gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2568                              _("unexpected reloc %u in object file"),
2569                              r_type);
2570       break;
2571
2572     default:
2573       gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2574                              _("unsupported reloc %u"),
2575                              r_type);
2576       break;
2577     }
2578
2579   return true;
2580 }
2581
2582 // Perform a TLS relocation.
2583
2584 template<int size, bool big_endian>
2585 inline void
2586 Target_sparc<size, big_endian>::Relocate::relocate_tls(
2587                         const Relocate_info<size, big_endian>* relinfo,
2588                         Target_sparc<size, big_endian>* target,
2589                         size_t relnum,
2590                         const elfcpp::Rela<size, big_endian>& rela,
2591                         unsigned int r_type,
2592                         const Sized_symbol<size>* gsym,
2593                         const Symbol_value<size>* psymval,
2594                         unsigned char* view,
2595                         typename elfcpp::Elf_types<size>::Elf_Addr address,
2596                         section_size_type)
2597 {
2598   Output_segment* tls_segment = relinfo->layout->tls_segment();
2599   typedef Sparc_relocate_functions<size, big_endian> Reloc;
2600   const Sized_relobj<size, big_endian>* object = relinfo->object;
2601   typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
2602
2603   const elfcpp::Elf_Xword addend = rela.get_r_addend();
2604   typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0);
2605
2606   const bool is_final =
2607     (gsym == NULL
2608      ? !parameters->options().output_is_position_independent()
2609      : gsym->final_value_is_known());
2610   const tls::Tls_optimization optimized_type
2611       = optimize_tls_reloc(is_final, r_type);
2612
2613   switch (r_type)
2614     {
2615     case elfcpp::R_SPARC_TLS_GD_HI22:
2616     case elfcpp::R_SPARC_TLS_GD_LO10:
2617     case elfcpp::R_SPARC_TLS_GD_ADD:
2618     case elfcpp::R_SPARC_TLS_GD_CALL:
2619       if (optimized_type == tls::TLSOPT_TO_LE)
2620         {
2621           Insntype* wv = reinterpret_cast<Insntype*>(view);
2622           Insntype val;
2623
2624           value -= tls_segment->memsz();
2625
2626           switch (r_type)
2627             {
2628             case elfcpp::R_SPARC_TLS_GD_HI22:
2629               // TLS_GD_HI22 --> TLS_LE_HIX22
2630               Reloc::hix22(view, value, addend);
2631               break;
2632
2633             case elfcpp::R_SPARC_TLS_GD_LO10:
2634               // TLS_GD_LO10 --> TLS_LE_LOX10
2635               Reloc::lox10(view, value, addend);
2636               break;
2637
2638             case elfcpp::R_SPARC_TLS_GD_ADD:
2639               // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3
2640               val = elfcpp::Swap<32, true>::readval(wv);
2641               val = (val & ~0x7c000) | 0x1c000;
2642               elfcpp::Swap<32, true>::writeval(wv, val);
2643               break;
2644             case elfcpp::R_SPARC_TLS_GD_CALL:
2645               // call __tls_get_addr --> nop
2646               elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
2647               break;
2648             }
2649           break;
2650         }
2651       else
2652         {
2653           unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE
2654                                    ? GOT_TYPE_TLS_OFFSET
2655                                    : GOT_TYPE_TLS_PAIR);
2656           if (gsym != NULL)
2657             {
2658               gold_assert(gsym->has_got_offset(got_type));
2659               value = gsym->got_offset(got_type);
2660             }
2661           else
2662             {
2663               unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
2664               gold_assert(object->local_has_got_offset(r_sym, got_type));
2665               value = object->local_got_offset(r_sym, got_type);
2666             }
2667           if (optimized_type == tls::TLSOPT_TO_IE)
2668             {
2669               Insntype* wv = reinterpret_cast<Insntype*>(view);
2670               Insntype val;
2671
2672               switch (r_type)
2673                 {
2674                 case elfcpp::R_SPARC_TLS_GD_HI22:
2675                   // TLS_GD_HI22 --> TLS_IE_HI22
2676                   Reloc::hi22(view, value, addend);
2677                   break;
2678
2679                 case elfcpp::R_SPARC_TLS_GD_LO10:
2680                   // TLS_GD_LO10 --> TLS_IE_LO10
2681                   Reloc::lo10(view, value, addend);
2682                   break;
2683
2684                 case elfcpp::R_SPARC_TLS_GD_ADD:
2685                   // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3
2686                   val = elfcpp::Swap<32, true>::readval(wv);
2687
2688                   if (size == 64)
2689                     val |= 0xc0580000;
2690                   else
2691                     val |= 0xc0000000;
2692
2693                   elfcpp::Swap<32, true>::writeval(wv, val);
2694                   break;
2695
2696                 case elfcpp::R_SPARC_TLS_GD_CALL:
2697                   // The compiler can put the TLS_GD_ADD instruction
2698                   // into the delay slot of the call.  If so, we need
2699                   // to transpose the two instructions so that the
2700                   // the new sequence works properly.
2701                   //
2702                   // The test we use is if the instruction in the
2703                   // delay slot is an add with destination register
2704                   // equal to %o0
2705                   val = elfcpp::Swap<32, true>::readval(wv + 1);
2706                   if ((val & 0x81f80000) == 0x80000000
2707                       && ((val >> 25) & 0x1f) == 0x8)
2708                     {
2709                       if (size == 64)
2710                         val |= 0xc0580000;
2711                       else
2712                         val |= 0xc0000000;
2713
2714                       elfcpp::Swap<32, true>::writeval(wv, val);
2715
2716                       wv += 1;
2717                       this->ignore_gd_add_ = true;
2718                     }
2719
2720                   // call __tls_get_addr --> add %g7, %o0, %o0
2721                   elfcpp::Swap<32, true>::writeval(wv, 0x9001c008);
2722                   break;
2723                 }
2724               break;
2725             }
2726           else if (optimized_type == tls::TLSOPT_NONE)
2727             {
2728               switch (r_type)
2729                 {
2730                 case elfcpp::R_SPARC_TLS_GD_HI22:
2731                   Reloc::hi22(view, value, addend);
2732                   break;
2733                 case elfcpp::R_SPARC_TLS_GD_LO10:
2734                   Reloc::lo10(view, value, addend);
2735                   break;
2736                 case elfcpp::R_SPARC_TLS_GD_ADD:
2737                   break;
2738                 case elfcpp::R_SPARC_TLS_GD_CALL:
2739                   {
2740                     Symbol_value<size> symval;
2741                     elfcpp::Elf_Xword value;
2742                     Symbol* tsym;
2743
2744                     tsym = target->tls_get_addr_sym_;
2745                     gold_assert(tsym);
2746                     value = (target->plt_section()->address() +
2747                              tsym->plt_offset());
2748                     symval.set_output_value(value);
2749                     Reloc::wdisp30(view, object, &symval, addend, address);
2750                   }
2751                   break;
2752                 }
2753               break;
2754             }
2755         }
2756       gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2757                              _("unsupported reloc %u"),
2758                              r_type);
2759       break;
2760
2761     case elfcpp::R_SPARC_TLS_LDM_HI22:
2762     case elfcpp::R_SPARC_TLS_LDM_LO10:
2763     case elfcpp::R_SPARC_TLS_LDM_ADD:
2764     case elfcpp::R_SPARC_TLS_LDM_CALL:
2765       if (optimized_type == tls::TLSOPT_TO_LE)
2766         {
2767           Insntype* wv = reinterpret_cast<Insntype*>(view);
2768
2769           switch (r_type)
2770             {
2771             case elfcpp::R_SPARC_TLS_LDM_HI22:
2772             case elfcpp::R_SPARC_TLS_LDM_LO10:
2773             case elfcpp::R_SPARC_TLS_LDM_ADD:
2774               elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
2775               break;
2776
2777             case elfcpp::R_SPARC_TLS_LDM_CALL:
2778               elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0);
2779               break;
2780             }
2781           break;
2782         }
2783       else if (optimized_type == tls::TLSOPT_NONE)
2784         {
2785           // Relocate the field with the offset of the GOT entry for
2786           // the module index.
2787           unsigned int got_offset;
2788
2789           got_offset = target->got_mod_index_entry(NULL, NULL, NULL);
2790           switch (r_type)
2791             {
2792             case elfcpp::R_SPARC_TLS_LDM_HI22:
2793               Reloc::hi22(view, got_offset, addend);
2794               break;
2795             case elfcpp::R_SPARC_TLS_LDM_LO10:
2796               Reloc::lo10(view, got_offset, addend);
2797               break;
2798             case elfcpp::R_SPARC_TLS_LDM_ADD:
2799               break;
2800             case elfcpp::R_SPARC_TLS_LDM_CALL:
2801               {
2802                 Symbol_value<size> symval;
2803                 elfcpp::Elf_Xword value;
2804                 Symbol* tsym;
2805
2806                 tsym = target->tls_get_addr_sym_;
2807                 gold_assert(tsym);
2808                 value = (target->plt_section()->address() +
2809                          tsym->plt_offset());
2810                 symval.set_output_value(value);
2811                 Reloc::wdisp30(view, object, &symval, addend, address);
2812               }
2813               break;
2814             }
2815           break;
2816         }
2817       gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2818                              _("unsupported reloc %u"),
2819                              r_type);
2820       break;
2821
2822       // These relocs can appear in debugging sections, in which case
2823       // we won't see the TLS_LDM relocs.  The local_dynamic_type
2824       // field tells us this.
2825     case elfcpp::R_SPARC_TLS_LDO_HIX22:
2826       if (optimized_type == tls::TLSOPT_TO_LE)
2827         {
2828           value -= tls_segment->memsz();
2829           Reloc::hix22(view, value, addend);
2830         }
2831       else
2832         Reloc::ldo_hix22(view, value, addend);
2833       break;
2834     case elfcpp::R_SPARC_TLS_LDO_LOX10:
2835       if (optimized_type == tls::TLSOPT_TO_LE)
2836         {
2837           value -= tls_segment->memsz();
2838           Reloc::lox10(view, value, addend);
2839         }
2840       else
2841         Reloc::ldo_lox10(view, value, addend);
2842       break;
2843     case elfcpp::R_SPARC_TLS_LDO_ADD:
2844       if (optimized_type == tls::TLSOPT_TO_LE)
2845         {
2846           Insntype* wv = reinterpret_cast<Insntype*>(view);
2847           Insntype val;
2848
2849           // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3
2850           val = elfcpp::Swap<32, true>::readval(wv);
2851           val = (val & ~0x7c000) | 0x1c000;
2852           elfcpp::Swap<32, true>::writeval(wv, val);
2853         }
2854       break;
2855
2856       // When optimizing IE --> LE, the only relocation that is handled
2857       // differently is R_SPARC_TLS_IE_LD, it is rewritten from
2858       // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is
2859       // rs2 and rd are the same.
2860     case elfcpp::R_SPARC_TLS_IE_LD:
2861     case elfcpp::R_SPARC_TLS_IE_LDX:
2862       if (optimized_type == tls::TLSOPT_TO_LE)
2863         {
2864           Insntype* wv = reinterpret_cast<Insntype*>(view);
2865           Insntype val = elfcpp::Swap<32, true>::readval(wv);
2866           Insntype rs2 = val & 0x1f;
2867           Insntype rd = (val >> 25) & 0x1f;
2868
2869           if (rs2 == rd)
2870             val = sparc_nop;
2871           else
2872             val = sparc_mov | (val & 0x3e00001f);
2873
2874           elfcpp::Swap<32, true>::writeval(wv, val);
2875         }
2876       break;
2877
2878     case elfcpp::R_SPARC_TLS_IE_HI22:
2879     case elfcpp::R_SPARC_TLS_IE_LO10:
2880       if (optimized_type == tls::TLSOPT_TO_LE)
2881         {
2882           value -= tls_segment->memsz();
2883           switch (r_type)
2884             {
2885             case elfcpp::R_SPARC_TLS_IE_HI22:
2886               // IE_HI22 --> LE_HIX22
2887               Reloc::hix22(view, value, addend);
2888               break;
2889             case elfcpp::R_SPARC_TLS_IE_LO10:
2890               // IE_LO10 --> LE_LOX10
2891               Reloc::lox10(view, value, addend);
2892               break;
2893             }
2894           break;
2895         }
2896       else if (optimized_type == tls::TLSOPT_NONE)
2897         {
2898           // Relocate the field with the offset of the GOT entry for
2899           // the tp-relative offset of the symbol.
2900           if (gsym != NULL)
2901             {
2902               gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET));
2903               value = gsym->got_offset(GOT_TYPE_TLS_OFFSET);
2904             }
2905           else
2906             {
2907               unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
2908               gold_assert(object->local_has_got_offset(r_sym,
2909                                                        GOT_TYPE_TLS_OFFSET));
2910               value = object->local_got_offset(r_sym,
2911                                                GOT_TYPE_TLS_OFFSET);
2912             }
2913           switch (r_type)
2914             {
2915             case elfcpp::R_SPARC_TLS_IE_HI22:
2916               Reloc::hi22(view, value, addend);
2917               break;
2918             case elfcpp::R_SPARC_TLS_IE_LO10:
2919               Reloc::lo10(view, value, addend);
2920               break;
2921             }
2922           break;
2923         }
2924       gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
2925                              _("unsupported reloc %u"),
2926                              r_type);
2927       break;
2928
2929     case elfcpp::R_SPARC_TLS_LE_HIX22:
2930       // If we're creating a shared library, a dynamic relocation will
2931       // have been created for this location, so do not apply it now.
2932       if (!parameters->options().shared())
2933         {
2934           value -= tls_segment->memsz();
2935           Reloc::hix22(view, value, addend);
2936         }
2937       break;
2938
2939     case elfcpp::R_SPARC_TLS_LE_LOX10:
2940       // If we're creating a shared library, a dynamic relocation will
2941       // have been created for this location, so do not apply it now.
2942       if (!parameters->options().shared())
2943         {
2944           value -= tls_segment->memsz();
2945           Reloc::lox10(view, value, addend);
2946         }
2947       break;
2948     }
2949 }
2950
2951 // Relocate section data.
2952
2953 template<int size, bool big_endian>
2954 void
2955 Target_sparc<size, big_endian>::relocate_section(
2956                         const Relocate_info<size, big_endian>* relinfo,
2957                         unsigned int sh_type,
2958                         const unsigned char* prelocs,
2959                         size_t reloc_count,
2960                         Output_section* output_section,
2961                         bool needs_special_offset_handling,
2962                         unsigned char* view,
2963                         typename elfcpp::Elf_types<size>::Elf_Addr address,
2964                         section_size_type view_size)
2965 {
2966   typedef Target_sparc<size, big_endian> Sparc;
2967   typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate;
2968
2969   gold_assert(sh_type == elfcpp::SHT_RELA);
2970
2971   gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA,
2972     Sparc_relocate>(
2973     relinfo,
2974     this,
2975     prelocs,
2976     reloc_count,
2977     output_section,
2978     needs_special_offset_handling,
2979     view,
2980     address,
2981     view_size);
2982 }
2983
2984 // Return the size of a relocation while scanning during a relocatable
2985 // link.
2986
2987 template<int size, bool big_endian>
2988 unsigned int
2989 Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc(
2990     unsigned int,
2991     Relobj*)
2992 {
2993   // We are always SHT_RELA, so we should never get here.
2994   gold_unreachable();
2995   return 0;
2996 }
2997
2998 // Scan the relocs during a relocatable link.
2999
3000 template<int size, bool big_endian>
3001 void
3002 Target_sparc<size, big_endian>::scan_relocatable_relocs(
3003                         const General_options& options,
3004                         Symbol_table* symtab,
3005                         Layout* layout,
3006                         Sized_relobj<size, big_endian>* object,
3007                         unsigned int data_shndx,
3008                         unsigned int sh_type,
3009                         const unsigned char* prelocs,
3010                         size_t reloc_count,
3011                         Output_section* output_section,
3012                         bool needs_special_offset_handling,
3013                         size_t local_symbol_count,
3014                         const unsigned char* plocal_symbols,
3015                         Relocatable_relocs* rr)
3016 {
3017   gold_assert(sh_type == elfcpp::SHT_RELA);
3018
3019   typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA,
3020     Relocatable_size_for_reloc> Scan_relocatable_relocs;
3021
3022   gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
3023       Scan_relocatable_relocs>(
3024     options,
3025     symtab,
3026     layout,
3027     object,
3028     data_shndx,
3029     prelocs,
3030     reloc_count,
3031     output_section,
3032     needs_special_offset_handling,
3033     local_symbol_count,
3034     plocal_symbols,
3035     rr);
3036 }
3037
3038 // Relocate a section during a relocatable link.
3039
3040 template<int size, bool big_endian>
3041 void
3042 Target_sparc<size, big_endian>::relocate_for_relocatable(
3043     const Relocate_info<size, big_endian>* relinfo,
3044     unsigned int sh_type,
3045     const unsigned char* prelocs,
3046     size_t reloc_count,
3047     Output_section* output_section,
3048     off_t offset_in_output_section,
3049     const Relocatable_relocs* rr,
3050     unsigned char* view,
3051     typename elfcpp::Elf_types<size>::Elf_Addr view_address,
3052     section_size_type view_size,
3053     unsigned char* reloc_view,
3054     section_size_type reloc_view_size)
3055 {
3056   gold_assert(sh_type == elfcpp::SHT_RELA);
3057
3058   gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>(
3059     relinfo,
3060     prelocs,
3061     reloc_count,
3062     output_section,
3063     offset_in_output_section,
3064     rr,
3065     view,
3066     view_address,
3067     view_size,
3068     reloc_view,
3069     reloc_view_size);
3070 }
3071
3072 // Return the value to use for a dynamic which requires special
3073 // treatment.  This is how we support equality comparisons of function
3074 // pointers across shared library boundaries, as described in the
3075 // processor specific ABI supplement.
3076
3077 template<int size, bool big_endian>
3078 uint64_t
3079 Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const
3080 {
3081   gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset());
3082   return this->plt_section()->address() + gsym->plt_offset();
3083 }
3084
3085 // The selector for sparc object files.
3086
3087 template<int size, bool big_endian>
3088 class Target_selector_sparc : public Target_selector
3089 {
3090 public:
3091   Target_selector_sparc()
3092     : Target_selector(elfcpp::EM_NONE, size, big_endian,
3093                       (size == 64 ? "elf64-sparc" : "elf32-sparc"))
3094   { }
3095
3096   Target* instantiated_target_;
3097
3098   Target* do_recognize(int machine, int, int)
3099   {
3100     switch (size)
3101       {
3102       case 64:
3103         if (machine != elfcpp::EM_SPARCV9)
3104           return NULL;
3105         break;
3106
3107       case 32:
3108         if (machine != elfcpp::EM_SPARC
3109             && machine != elfcpp::EM_SPARC32PLUS)
3110           return NULL;
3111         break;
3112
3113       default:
3114         return NULL;
3115       }
3116
3117     return do_instantiate_target();
3118   }
3119
3120   Target* do_instantiate_target()
3121   {
3122     if (this->instantiated_target_ == NULL)
3123       this->instantiated_target_ = new Target_sparc<size, big_endian>();
3124     return this->instantiated_target_;
3125   }
3126 };
3127
3128 Target_selector_sparc<32, true> target_selector_sparc32;
3129 Target_selector_sparc<64, true> target_selector_sparc64;
3130
3131 } // End anonymous namespace.