| 1 | // tilegx.cc -- tilegx target support for gold. |
| 2 | |
| 3 | // Copyright (C) 2012-2020 Free Software Foundation, Inc. |
| 4 | // Written by Jiong Wang (jiwang@tilera.com) |
| 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 <cstring> |
| 26 | |
| 27 | #include "elfcpp.h" |
| 28 | #include "dwarf.h" |
| 29 | #include "parameters.h" |
| 30 | #include "reloc.h" |
| 31 | #include "tilegx.h" |
| 32 | #include "object.h" |
| 33 | #include "symtab.h" |
| 34 | #include "layout.h" |
| 35 | #include "output.h" |
| 36 | #include "copy-relocs.h" |
| 37 | #include "target.h" |
| 38 | #include "target-reloc.h" |
| 39 | #include "target-select.h" |
| 40 | #include "tls.h" |
| 41 | #include "gc.h" |
| 42 | #include "icf.h" |
| 43 | |
| 44 | // the first got entry reserved |
| 45 | const int32_t TILEGX_GOT_RESERVE_COUNT = 1; |
| 46 | |
| 47 | // the first two .got.plt entry reserved |
| 48 | const int32_t TILEGX_GOTPLT_RESERVE_COUNT = 2; |
| 49 | |
| 50 | // 1. for both 64/32 bit mode, the instruction bundle is always 64bit. |
| 51 | // 2. thus .plt section should always be aligned to 64 bit. |
| 52 | const int32_t TILEGX_INST_BUNDLE_SIZE = 64; |
| 53 | |
| 54 | namespace |
| 55 | { |
| 56 | |
| 57 | using namespace gold; |
| 58 | |
| 59 | // A class to handle the PLT data. |
| 60 | // This is an abstract base class that handles most of the linker details |
| 61 | // but does not know the actual contents of PLT entries. The derived |
| 62 | // classes below fill in those details. |
| 63 | |
| 64 | template<int size, bool big_endian> |
| 65 | class Output_data_plt_tilegx : public Output_section_data |
| 66 | { |
| 67 | public: |
| 68 | typedef Output_data_reloc<elfcpp::SHT_RELA, true,size, big_endian> |
| 69 | Reloc_section; |
| 70 | |
| 71 | Output_data_plt_tilegx(Layout* layout, uint64_t addralign, |
| 72 | Output_data_got<size, big_endian>* got, |
| 73 | Output_data_space* got_plt, |
| 74 | Output_data_space* got_irelative) |
| 75 | : Output_section_data(addralign), layout_(layout), |
| 76 | irelative_rel_(NULL), got_(got), got_plt_(got_plt), |
| 77 | got_irelative_(got_irelative), count_(0), |
| 78 | irelative_count_(0), free_list_() |
| 79 | { this->init(layout); } |
| 80 | |
| 81 | Output_data_plt_tilegx(Layout* layout, uint64_t plt_entry_size, |
| 82 | Output_data_got<size, big_endian>* got, |
| 83 | Output_data_space* got_plt, |
| 84 | Output_data_space* got_irelative, |
| 85 | unsigned int plt_count) |
| 86 | : Output_section_data((plt_count + 1) * plt_entry_size, |
| 87 | TILEGX_INST_BUNDLE_SIZE, false), |
| 88 | layout_(layout), irelative_rel_(NULL), got_(got), |
| 89 | got_plt_(got_plt), got_irelative_(got_irelative), count_(plt_count), |
| 90 | irelative_count_(0), free_list_() |
| 91 | { |
| 92 | this->init(layout); |
| 93 | |
| 94 | // Initialize the free list and reserve the first entry. |
| 95 | this->free_list_.init((plt_count + 1) * plt_entry_size, false); |
| 96 | this->free_list_.remove(0, plt_entry_size); |
| 97 | } |
| 98 | |
| 99 | // Initialize the PLT section. |
| 100 | void |
| 101 | init(Layout* layout); |
| 102 | |
| 103 | // Add an entry to the PLT. |
| 104 | void |
| 105 | add_entry(Symbol_table*, Layout*, Symbol* gsym); |
| 106 | |
| 107 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. |
| 108 | unsigned int |
| 109 | add_local_ifunc_entry(Symbol_table*, Layout*, |
| 110 | Sized_relobj_file<size, big_endian>*, unsigned int); |
| 111 | |
| 112 | // Add the relocation for a PLT entry. |
| 113 | void |
| 114 | add_relocation(Symbol_table*, Layout*, Symbol*, unsigned int); |
| 115 | |
| 116 | // Return the .rela.plt section data. |
| 117 | Reloc_section* |
| 118 | rela_plt() |
| 119 | { return this->rel_; } |
| 120 | |
| 121 | // Return where the IRELATIVE relocations should go in the PLT |
| 122 | // relocations. |
| 123 | Reloc_section* |
| 124 | rela_irelative(Symbol_table*, Layout*); |
| 125 | |
| 126 | // Return whether we created a section for IRELATIVE relocations. |
| 127 | bool |
| 128 | has_irelative_section() const |
| 129 | { return this->irelative_rel_ != NULL; } |
| 130 | |
| 131 | // Return the number of PLT entries. |
| 132 | unsigned int |
| 133 | entry_count() const |
| 134 | { return this->count_ + this->irelative_count_; } |
| 135 | |
| 136 | // Return the offset of the first non-reserved PLT entry. |
| 137 | unsigned int |
| 138 | first_plt_entry_offset() |
| 139 | { return this->get_plt_entry_size(); } |
| 140 | |
| 141 | // Return the size of a PLT entry. |
| 142 | unsigned int |
| 143 | get_plt_entry_size() const |
| 144 | { return plt_entry_size; } |
| 145 | |
| 146 | // Reserve a slot in the PLT for an existing symbol in an incremental update. |
| 147 | void |
| 148 | reserve_slot(unsigned int plt_index) |
| 149 | { |
| 150 | this->free_list_.remove((plt_index + 1) * this->get_plt_entry_size(), |
| 151 | (plt_index + 2) * this->get_plt_entry_size()); |
| 152 | } |
| 153 | |
| 154 | // Return the PLT address to use for a global symbol. |
| 155 | uint64_t |
| 156 | address_for_global(const Symbol*); |
| 157 | |
| 158 | // Return the PLT address to use for a local symbol. |
| 159 | uint64_t |
| 160 | address_for_local(const Relobj*, unsigned int symndx); |
| 161 | |
| 162 | protected: |
| 163 | // Fill in the first PLT entry. |
| 164 | void |
| 165 | fill_first_plt_entry(unsigned char*); |
| 166 | |
| 167 | // Fill in a normal PLT entry. Returns the offset into the entry that |
| 168 | // should be the initial GOT slot value. |
| 169 | void |
| 170 | fill_plt_entry(unsigned char*, |
| 171 | typename elfcpp::Elf_types<size>::Elf_Addr, |
| 172 | unsigned int, |
| 173 | typename elfcpp::Elf_types<size>::Elf_Addr, |
| 174 | unsigned int, unsigned int); |
| 175 | |
| 176 | void |
| 177 | do_adjust_output_section(Output_section* os); |
| 178 | |
| 179 | // Write to a map file. |
| 180 | void |
| 181 | do_print_to_mapfile(Mapfile* mapfile) const |
| 182 | { mapfile->print_output_data(this, _("** PLT")); } |
| 183 | |
| 184 | private: |
| 185 | // Set the final size. |
| 186 | void |
| 187 | set_final_data_size(); |
| 188 | |
| 189 | // Write out the PLT data. |
| 190 | void |
| 191 | do_write(Output_file*); |
| 192 | |
| 193 | // A pointer to the Layout class, so that we can find the .dynamic |
| 194 | // section when we write out the GOT PLT section. |
| 195 | Layout* layout_; |
| 196 | // The reloc section. |
| 197 | Reloc_section* rel_; |
| 198 | // The IRELATIVE relocs, if necessary. These must follow the |
| 199 | // regular PLT relocations. |
| 200 | Reloc_section* irelative_rel_; |
| 201 | // The .got section. |
| 202 | Output_data_got<size, big_endian>* got_; |
| 203 | // The .got.plt section. |
| 204 | Output_data_space* got_plt_; |
| 205 | // The part of the .got.plt section used for IRELATIVE relocs. |
| 206 | Output_data_space* got_irelative_; |
| 207 | // The number of PLT entries. |
| 208 | unsigned int count_; |
| 209 | // Number of PLT entries with R_TILEGX_IRELATIVE relocs. These |
| 210 | // follow the regular PLT entries. |
| 211 | unsigned int irelative_count_; |
| 212 | // List of available regions within the section, for incremental |
| 213 | // update links. |
| 214 | Free_list free_list_; |
| 215 | // The size of an entry in the PLT. |
| 216 | static const int plt_entry_size = 40; |
| 217 | // The first entry in the PLT. |
| 218 | static const unsigned char first_plt_entry[plt_entry_size]; |
| 219 | // Other entries in the PLT for an executable. |
| 220 | static const unsigned char plt_entry[plt_entry_size]; |
| 221 | }; |
| 222 | |
| 223 | // The tilegx target class. |
| 224 | // See the ABI at |
| 225 | // http://www.tilera.com/scm |
| 226 | // TLS info comes from |
| 227 | // http://people.redhat.com/drepper/tls.pdf |
| 228 | |
| 229 | template<int size, bool big_endian> |
| 230 | class Target_tilegx : public Sized_target<size, big_endian> |
| 231 | { |
| 232 | public: |
| 233 | // TileGX use RELA |
| 234 | typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> |
| 235 | Reloc_section; |
| 236 | |
| 237 | Target_tilegx(const Target::Target_info* info = &tilegx_info) |
| 238 | : Sized_target<size, big_endian>(info), |
| 239 | got_(NULL), plt_(NULL), got_plt_(NULL), got_irelative_(NULL), |
| 240 | global_offset_table_(NULL), tilegx_dynamic_(NULL), rela_dyn_(NULL), |
| 241 | rela_irelative_(NULL), copy_relocs_(elfcpp::R_TILEGX_COPY), |
| 242 | got_mod_index_offset_(-1U), |
| 243 | tls_get_addr_sym_defined_(false) |
| 244 | { } |
| 245 | |
| 246 | // Scan the relocations to look for symbol adjustments. |
| 247 | void |
| 248 | gc_process_relocs(Symbol_table* symtab, |
| 249 | Layout* layout, |
| 250 | Sized_relobj_file<size, big_endian>* object, |
| 251 | unsigned int data_shndx, |
| 252 | unsigned int sh_type, |
| 253 | const unsigned char* prelocs, |
| 254 | size_t reloc_count, |
| 255 | Output_section* output_section, |
| 256 | bool needs_special_offset_handling, |
| 257 | size_t local_symbol_count, |
| 258 | const unsigned char* plocal_symbols); |
| 259 | |
| 260 | // Scan the relocations to look for symbol adjustments. |
| 261 | void |
| 262 | scan_relocs(Symbol_table* symtab, |
| 263 | Layout* layout, |
| 264 | Sized_relobj_file<size, big_endian>* object, |
| 265 | unsigned int data_shndx, |
| 266 | unsigned int sh_type, |
| 267 | const unsigned char* prelocs, |
| 268 | size_t reloc_count, |
| 269 | Output_section* output_section, |
| 270 | bool needs_special_offset_handling, |
| 271 | size_t local_symbol_count, |
| 272 | const unsigned char* plocal_symbols); |
| 273 | |
| 274 | // Finalize the sections. |
| 275 | void |
| 276 | do_finalize_sections(Layout*, const Input_objects*, Symbol_table*); |
| 277 | |
| 278 | // Return the value to use for a dynamic which requires special |
| 279 | // treatment. |
| 280 | uint64_t |
| 281 | do_dynsym_value(const Symbol*) const; |
| 282 | |
| 283 | // Relocate a section. |
| 284 | void |
| 285 | relocate_section(const Relocate_info<size, big_endian>*, |
| 286 | unsigned int sh_type, |
| 287 | const unsigned char* prelocs, |
| 288 | size_t reloc_count, |
| 289 | Output_section* output_section, |
| 290 | bool needs_special_offset_handling, |
| 291 | unsigned char* view, |
| 292 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, |
| 293 | section_size_type view_size, |
| 294 | const Reloc_symbol_changes*); |
| 295 | |
| 296 | // Scan the relocs during a relocatable link. |
| 297 | void |
| 298 | scan_relocatable_relocs(Symbol_table* symtab, |
| 299 | Layout* layout, |
| 300 | Sized_relobj_file<size, big_endian>* object, |
| 301 | unsigned int data_shndx, |
| 302 | unsigned int sh_type, |
| 303 | const unsigned char* prelocs, |
| 304 | size_t reloc_count, |
| 305 | Output_section* output_section, |
| 306 | bool needs_special_offset_handling, |
| 307 | size_t local_symbol_count, |
| 308 | const unsigned char* plocal_symbols, |
| 309 | Relocatable_relocs*); |
| 310 | |
| 311 | // Scan the relocs for --emit-relocs. |
| 312 | void |
| 313 | emit_relocs_scan(Symbol_table* symtab, |
| 314 | Layout* layout, |
| 315 | Sized_relobj_file<size, big_endian>* object, |
| 316 | unsigned int data_shndx, |
| 317 | unsigned int sh_type, |
| 318 | const unsigned char* prelocs, |
| 319 | size_t reloc_count, |
| 320 | Output_section* output_section, |
| 321 | bool needs_special_offset_handling, |
| 322 | size_t local_symbol_count, |
| 323 | const unsigned char* plocal_syms, |
| 324 | Relocatable_relocs* rr); |
| 325 | |
| 326 | // Relocate a section during a relocatable link. |
| 327 | void |
| 328 | relocate_relocs( |
| 329 | const Relocate_info<size, big_endian>*, |
| 330 | unsigned int sh_type, |
| 331 | const unsigned char* prelocs, |
| 332 | size_t reloc_count, |
| 333 | Output_section* output_section, |
| 334 | typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section, |
| 335 | unsigned char* view, |
| 336 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, |
| 337 | section_size_type view_size, |
| 338 | unsigned char* reloc_view, |
| 339 | section_size_type reloc_view_size); |
| 340 | |
| 341 | // Return whether SYM is defined by the ABI. |
| 342 | bool |
| 343 | do_is_defined_by_abi(const Symbol* sym) const |
| 344 | { return strcmp(sym->name(), "__tls_get_addr") == 0; } |
| 345 | |
| 346 | // define tilegx specific symbols |
| 347 | virtual void |
| 348 | do_define_standard_symbols(Symbol_table*, Layout*); |
| 349 | |
| 350 | // Return the PLT section. |
| 351 | uint64_t |
| 352 | do_plt_address_for_global(const Symbol* gsym) const |
| 353 | { return this->plt_section()->address_for_global(gsym); } |
| 354 | |
| 355 | uint64_t |
| 356 | do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const |
| 357 | { return this->plt_section()->address_for_local(relobj, symndx); } |
| 358 | |
| 359 | // This function should be defined in targets that can use relocation |
| 360 | // types to determine (implemented in local_reloc_may_be_function_pointer |
| 361 | // and global_reloc_may_be_function_pointer) |
| 362 | // if a function's pointer is taken. ICF uses this in safe mode to only |
| 363 | // fold those functions whose pointer is defintely not taken. For tilegx |
| 364 | // pie binaries, safe ICF cannot be done by looking at relocation types. |
| 365 | bool |
| 366 | do_can_check_for_function_pointers() const |
| 367 | { return true; } |
| 368 | |
| 369 | // Return the base for a DW_EH_PE_datarel encoding. |
| 370 | uint64_t |
| 371 | do_ehframe_datarel_base() const; |
| 372 | |
| 373 | // Return whether there is a GOT section. |
| 374 | bool |
| 375 | has_got_section() const |
| 376 | { return this->got_ != NULL; } |
| 377 | |
| 378 | // Return the size of the GOT section. |
| 379 | section_size_type |
| 380 | got_size() const |
| 381 | { |
| 382 | gold_assert(this->got_ != NULL); |
| 383 | return this->got_->data_size(); |
| 384 | } |
| 385 | |
| 386 | // Return the number of entries in the GOT. |
| 387 | unsigned int |
| 388 | got_entry_count() const |
| 389 | { |
| 390 | if (this->got_ == NULL) |
| 391 | return 0; |
| 392 | return this->got_size() / (size / 8); |
| 393 | } |
| 394 | |
| 395 | // Return the number of entries in the PLT. |
| 396 | unsigned int |
| 397 | plt_entry_count() const; |
| 398 | |
| 399 | // Return the offset of the first non-reserved PLT entry. |
| 400 | unsigned int |
| 401 | first_plt_entry_offset() const; |
| 402 | |
| 403 | // Return the size of each PLT entry. |
| 404 | unsigned int |
| 405 | plt_entry_size() const; |
| 406 | |
| 407 | // Create the GOT section for an incremental update. |
| 408 | Output_data_got_base* |
| 409 | init_got_plt_for_update(Symbol_table* symtab, |
| 410 | Layout* layout, |
| 411 | unsigned int got_count, |
| 412 | unsigned int plt_count); |
| 413 | |
| 414 | // Reserve a GOT entry for a local symbol, and regenerate any |
| 415 | // necessary dynamic relocations. |
| 416 | void |
| 417 | reserve_local_got_entry(unsigned int got_index, |
| 418 | Sized_relobj<size, big_endian>* obj, |
| 419 | unsigned int r_sym, |
| 420 | unsigned int got_type); |
| 421 | |
| 422 | // Reserve a GOT entry for a global symbol, and regenerate any |
| 423 | // necessary dynamic relocations. |
| 424 | void |
| 425 | reserve_global_got_entry(unsigned int got_index, Symbol* gsym, |
| 426 | unsigned int got_type); |
| 427 | |
| 428 | // Register an existing PLT entry for a global symbol. |
| 429 | void |
| 430 | register_global_plt_entry(Symbol_table*, Layout*, unsigned int plt_index, |
| 431 | Symbol* gsym); |
| 432 | |
| 433 | // Force a COPY relocation for a given symbol. |
| 434 | void |
| 435 | emit_copy_reloc(Symbol_table*, Symbol*, Output_section*, off_t); |
| 436 | |
| 437 | // Apply an incremental relocation. |
| 438 | void |
| 439 | apply_relocation(const Relocate_info<size, big_endian>* relinfo, |
| 440 | typename elfcpp::Elf_types<size>::Elf_Addr r_offset, |
| 441 | unsigned int r_type, |
| 442 | typename elfcpp::Elf_types<size>::Elf_Swxword r_addend, |
| 443 | const Symbol* gsym, |
| 444 | unsigned char* view, |
| 445 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 446 | section_size_type view_size); |
| 447 | |
| 448 | private: |
| 449 | // The class which scans relocations. |
| 450 | class Scan |
| 451 | { |
| 452 | public: |
| 453 | Scan() |
| 454 | : issued_non_pic_error_(false) |
| 455 | { } |
| 456 | |
| 457 | static inline int |
| 458 | get_reference_flags(unsigned int r_type); |
| 459 | |
| 460 | inline void |
| 461 | local(Symbol_table* symtab, Layout* layout, Target_tilegx* target, |
| 462 | Sized_relobj_file<size, big_endian>* object, |
| 463 | unsigned int data_shndx, |
| 464 | Output_section* output_section, |
| 465 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, |
| 466 | const elfcpp::Sym<size, big_endian>& lsym, |
| 467 | bool is_discarded); |
| 468 | |
| 469 | inline void |
| 470 | global(Symbol_table* symtab, Layout* layout, Target_tilegx* target, |
| 471 | Sized_relobj_file<size, big_endian>* object, |
| 472 | unsigned int data_shndx, |
| 473 | Output_section* output_section, |
| 474 | const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type, |
| 475 | Symbol* gsym); |
| 476 | |
| 477 | inline bool |
| 478 | local_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout, |
| 479 | Target_tilegx* target, |
| 480 | Sized_relobj_file<size, big_endian>* object, |
| 481 | unsigned int data_shndx, |
| 482 | Output_section* output_section, |
| 483 | const elfcpp::Rela<size, big_endian>& reloc, |
| 484 | unsigned int r_type, |
| 485 | const elfcpp::Sym<size, big_endian>& lsym); |
| 486 | |
| 487 | inline bool |
| 488 | global_reloc_may_be_function_pointer(Symbol_table* symtab, Layout* layout, |
| 489 | Target_tilegx* target, |
| 490 | Sized_relobj_file<size, big_endian>* object, |
| 491 | unsigned int data_shndx, |
| 492 | Output_section* output_section, |
| 493 | const elfcpp::Rela<size, big_endian>& reloc, |
| 494 | unsigned int r_type, |
| 495 | Symbol* gsym); |
| 496 | |
| 497 | private: |
| 498 | static void |
| 499 | unsupported_reloc_local(Sized_relobj_file<size, big_endian>*, |
| 500 | unsigned int r_type); |
| 501 | |
| 502 | static void |
| 503 | unsupported_reloc_global(Sized_relobj_file<size, big_endian>*, |
| 504 | unsigned int r_type, Symbol*); |
| 505 | |
| 506 | void |
| 507 | check_non_pic(Relobj*, unsigned int r_type); |
| 508 | |
| 509 | inline bool |
| 510 | possible_function_pointer_reloc(unsigned int r_type); |
| 511 | |
| 512 | bool |
| 513 | reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*, |
| 514 | unsigned int r_type); |
| 515 | |
| 516 | // Whether we have issued an error about a non-PIC compilation. |
| 517 | bool issued_non_pic_error_; |
| 518 | }; |
| 519 | |
| 520 | // The class which implements relocation. |
| 521 | class Relocate |
| 522 | { |
| 523 | public: |
| 524 | Relocate() |
| 525 | { } |
| 526 | |
| 527 | ~Relocate() |
| 528 | { |
| 529 | } |
| 530 | |
| 531 | // Do a relocation. Return false if the caller should not issue |
| 532 | // any warnings about this relocation. |
| 533 | inline bool |
| 534 | relocate(const Relocate_info<size, big_endian>*, unsigned int, |
| 535 | Target_tilegx*, Output_section*, size_t, const unsigned char*, |
| 536 | const Sized_symbol<size>*, const Symbol_value<size>*, |
| 537 | unsigned char*, typename elfcpp::Elf_types<size>::Elf_Addr, |
| 538 | section_size_type); |
| 539 | }; |
| 540 | |
| 541 | // Adjust TLS relocation type based on the options and whether this |
| 542 | // is a local symbol. |
| 543 | static tls::Tls_optimization |
| 544 | optimize_tls_reloc(bool is_final, int r_type); |
| 545 | |
| 546 | // Get the GOT section, creating it if necessary. |
| 547 | Output_data_got<size, big_endian>* |
| 548 | got_section(Symbol_table*, Layout*); |
| 549 | |
| 550 | // Get the GOT PLT section. |
| 551 | Output_data_space* |
| 552 | got_plt_section() const |
| 553 | { |
| 554 | gold_assert(this->got_plt_ != NULL); |
| 555 | return this->got_plt_; |
| 556 | } |
| 557 | |
| 558 | // Create the PLT section. |
| 559 | void |
| 560 | make_plt_section(Symbol_table* symtab, Layout* layout); |
| 561 | |
| 562 | // Create a PLT entry for a global symbol. |
| 563 | void |
| 564 | make_plt_entry(Symbol_table*, Layout*, Symbol*); |
| 565 | |
| 566 | // Create a PLT entry for a local STT_GNU_IFUNC symbol. |
| 567 | void |
| 568 | make_local_ifunc_plt_entry(Symbol_table*, Layout*, |
| 569 | Sized_relobj_file<size, big_endian>* relobj, |
| 570 | unsigned int local_sym_index); |
| 571 | |
| 572 | // Create a GOT entry for the TLS module index. |
| 573 | unsigned int |
| 574 | got_mod_index_entry(Symbol_table* symtab, Layout* layout, |
| 575 | Sized_relobj_file<size, big_endian>* object); |
| 576 | |
| 577 | // Get the PLT section. |
| 578 | Output_data_plt_tilegx<size, big_endian>* |
| 579 | plt_section() const |
| 580 | { |
| 581 | gold_assert(this->plt_ != NULL); |
| 582 | return this->plt_; |
| 583 | } |
| 584 | |
| 585 | // Get the dynamic reloc section, creating it if necessary. |
| 586 | Reloc_section* |
| 587 | rela_dyn_section(Layout*); |
| 588 | |
| 589 | // Get the section to use for IRELATIVE relocations. |
| 590 | Reloc_section* |
| 591 | rela_irelative_section(Layout*); |
| 592 | |
| 593 | // Add a potential copy relocation. |
| 594 | void |
| 595 | copy_reloc(Symbol_table* symtab, Layout* layout, |
| 596 | Sized_relobj_file<size, big_endian>* object, |
| 597 | unsigned int shndx, Output_section* output_section, |
| 598 | Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc) |
| 599 | { |
| 600 | unsigned int r_type = elfcpp::elf_r_type<size>(reloc.get_r_info()); |
| 601 | this->copy_relocs_.copy_reloc(symtab, layout, |
| 602 | symtab->get_sized_symbol<size>(sym), |
| 603 | object, shndx, output_section, |
| 604 | r_type, reloc.get_r_offset(), |
| 605 | reloc.get_r_addend(), |
| 606 | this->rela_dyn_section(layout)); |
| 607 | } |
| 608 | |
| 609 | // Information about this specific target which we pass to the |
| 610 | // general Target structure. |
| 611 | static const Target::Target_info tilegx_info; |
| 612 | |
| 613 | // The types of GOT entries needed for this platform. |
| 614 | // These values are exposed to the ABI in an incremental link. |
| 615 | // Do not renumber existing values without changing the version |
| 616 | // number of the .gnu_incremental_inputs section. |
| 617 | enum Got_type |
| 618 | { |
| 619 | GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol |
| 620 | GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset |
| 621 | GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair |
| 622 | GOT_TYPE_TLS_DESC = 3 // GOT entry for TLS_DESC pair |
| 623 | }; |
| 624 | |
| 625 | // This type is used as the argument to the target specific |
| 626 | // relocation routines. The only target specific reloc is |
| 627 | // R_X86_64_TLSDESC against a local symbol. |
| 628 | struct Tlsdesc_info |
| 629 | { |
| 630 | Tlsdesc_info(Sized_relobj_file<size, big_endian>* a_object, |
| 631 | unsigned int a_r_sym) |
| 632 | : object(a_object), r_sym(a_r_sym) |
| 633 | { } |
| 634 | |
| 635 | // The object in which the local symbol is defined. |
| 636 | Sized_relobj_file<size, big_endian>* object; |
| 637 | // The local symbol index in the object. |
| 638 | unsigned int r_sym; |
| 639 | }; |
| 640 | |
| 641 | // The GOT section. |
| 642 | Output_data_got<size, big_endian>* got_; |
| 643 | // The PLT section. |
| 644 | Output_data_plt_tilegx<size, big_endian>* plt_; |
| 645 | // The GOT PLT section. |
| 646 | Output_data_space* got_plt_; |
| 647 | // The GOT section for IRELATIVE relocations. |
| 648 | Output_data_space* got_irelative_; |
| 649 | // The _GLOBAL_OFFSET_TABLE_ symbol. |
| 650 | Symbol* global_offset_table_; |
| 651 | // The _TILEGX_DYNAMIC_ symbol. |
| 652 | Symbol* tilegx_dynamic_; |
| 653 | // The dynamic reloc section. |
| 654 | Reloc_section* rela_dyn_; |
| 655 | // The section to use for IRELATIVE relocs. |
| 656 | Reloc_section* rela_irelative_; |
| 657 | // Relocs saved to avoid a COPY reloc. |
| 658 | Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_; |
| 659 | // Offset of the GOT entry for the TLS module index. |
| 660 | unsigned int got_mod_index_offset_; |
| 661 | // True if the _tls_get_addr symbol has been defined. |
| 662 | bool tls_get_addr_sym_defined_; |
| 663 | }; |
| 664 | |
| 665 | template<> |
| 666 | const Target::Target_info Target_tilegx<64, false>::tilegx_info = |
| 667 | { |
| 668 | 64, // size |
| 669 | false, // is_big_endian |
| 670 | elfcpp::EM_TILEGX, // machine_code |
| 671 | false, // has_make_symbol |
| 672 | false, // has_resolve |
| 673 | false, // has_code_fill |
| 674 | true, // is_default_stack_executable |
| 675 | false, // can_icf_inline_merge_sections |
| 676 | '\0', // wrap_char |
| 677 | "/lib/ld.so.1", // program interpreter |
| 678 | 0x10000, // default_text_segment_address |
| 679 | 0x10000, // abi_pagesize (overridable by -z max-page-size) |
| 680 | 0x10000, // common_pagesize (overridable by -z common-page-size) |
| 681 | false, // isolate_execinstr |
| 682 | 0, // rosegment_gap |
| 683 | elfcpp::SHN_UNDEF, // small_common_shndx |
| 684 | elfcpp::SHN_UNDEF, // large_common_shndx |
| 685 | 0, // small_common_section_flags |
| 686 | 0, // large_common_section_flags |
| 687 | NULL, // attributes_section |
| 688 | NULL, // attributes_vendor |
| 689 | "_start", // entry_symbol_name |
| 690 | 32, // hash_entry_size |
| 691 | elfcpp::SHT_PROGBITS, // unwind_section_type |
| 692 | }; |
| 693 | |
| 694 | template<> |
| 695 | const Target::Target_info Target_tilegx<32, false>::tilegx_info = |
| 696 | { |
| 697 | 32, // size |
| 698 | false, // is_big_endian |
| 699 | elfcpp::EM_TILEGX, // machine_code |
| 700 | false, // has_make_symbol |
| 701 | false, // has_resolve |
| 702 | false, // has_code_fill |
| 703 | true, // is_default_stack_executable |
| 704 | false, // can_icf_inline_merge_sections |
| 705 | '\0', // wrap_char |
| 706 | "/lib32/ld.so.1", // program interpreter |
| 707 | 0x10000, // default_text_segment_address |
| 708 | 0x10000, // abi_pagesize (overridable by -z max-page-size) |
| 709 | 0x10000, // common_pagesize (overridable by -z common-page-size) |
| 710 | false, // isolate_execinstr |
| 711 | 0, // rosegment_gap |
| 712 | elfcpp::SHN_UNDEF, // small_common_shndx |
| 713 | elfcpp::SHN_UNDEF, // large_common_shndx |
| 714 | 0, // small_common_section_flags |
| 715 | 0, // large_common_section_flags |
| 716 | NULL, // attributes_section |
| 717 | NULL, // attributes_vendor |
| 718 | "_start", // entry_symbol_name |
| 719 | 32, // hash_entry_size |
| 720 | elfcpp::SHT_PROGBITS, // unwind_section_type |
| 721 | }; |
| 722 | |
| 723 | template<> |
| 724 | const Target::Target_info Target_tilegx<64, true>::tilegx_info = |
| 725 | { |
| 726 | 64, // size |
| 727 | true, // is_big_endian |
| 728 | elfcpp::EM_TILEGX, // machine_code |
| 729 | false, // has_make_symbol |
| 730 | false, // has_resolve |
| 731 | false, // has_code_fill |
| 732 | true, // is_default_stack_executable |
| 733 | false, // can_icf_inline_merge_sections |
| 734 | '\0', // wrap_char |
| 735 | "/lib/ld.so.1", // program interpreter |
| 736 | 0x10000, // default_text_segment_address |
| 737 | 0x10000, // abi_pagesize (overridable by -z max-page-size) |
| 738 | 0x10000, // common_pagesize (overridable by -z common-page-size) |
| 739 | false, // isolate_execinstr |
| 740 | 0, // rosegment_gap |
| 741 | elfcpp::SHN_UNDEF, // small_common_shndx |
| 742 | elfcpp::SHN_UNDEF, // large_common_shndx |
| 743 | 0, // small_common_section_flags |
| 744 | 0, // large_common_section_flags |
| 745 | NULL, // attributes_section |
| 746 | NULL, // attributes_vendor |
| 747 | "_start", // entry_symbol_name |
| 748 | 32, // hash_entry_size |
| 749 | elfcpp::SHT_PROGBITS, // unwind_section_type |
| 750 | }; |
| 751 | |
| 752 | template<> |
| 753 | const Target::Target_info Target_tilegx<32, true>::tilegx_info = |
| 754 | { |
| 755 | 32, // size |
| 756 | true, // is_big_endian |
| 757 | elfcpp::EM_TILEGX, // machine_code |
| 758 | false, // has_make_symbol |
| 759 | false, // has_resolve |
| 760 | false, // has_code_fill |
| 761 | true, // is_default_stack_executable |
| 762 | false, // can_icf_inline_merge_sections |
| 763 | '\0', // wrap_char |
| 764 | "/lib32/ld.so.1", // program interpreter |
| 765 | 0x10000, // default_text_segment_address |
| 766 | 0x10000, // abi_pagesize (overridable by -z max-page-size) |
| 767 | 0x10000, // common_pagesize (overridable by -z common-page-size) |
| 768 | false, // isolate_execinstr |
| 769 | 0, // rosegment_gap |
| 770 | elfcpp::SHN_UNDEF, // small_common_shndx |
| 771 | elfcpp::SHN_UNDEF, // large_common_shndx |
| 772 | 0, // small_common_section_flags |
| 773 | 0, // large_common_section_flags |
| 774 | NULL, // attributes_section |
| 775 | NULL, // attributes_vendor |
| 776 | "_start", // entry_symbol_name |
| 777 | 32, // hash_entry_size |
| 778 | elfcpp::SHT_PROGBITS, // unwind_section_type |
| 779 | }; |
| 780 | |
| 781 | // tilegx relocation handlers |
| 782 | template<int size, bool big_endian> |
| 783 | class Tilegx_relocate_functions |
| 784 | { |
| 785 | public: |
| 786 | // overflow check will be supported later |
| 787 | typedef enum |
| 788 | { |
| 789 | STATUS_OKAY, // No error during relocation. |
| 790 | STATUS_OVERFLOW, // Relocation overflow. |
| 791 | STATUS_BAD_RELOC // Relocation cannot be applied. |
| 792 | } Status; |
| 793 | |
| 794 | struct Tilegx_howto |
| 795 | { |
| 796 | // right shift operand by this number of bits. |
| 797 | unsigned char srshift; |
| 798 | |
| 799 | // the offset to apply relocation. |
| 800 | unsigned char doffset; |
| 801 | |
| 802 | // set to 1 for pc-relative relocation. |
| 803 | unsigned char is_pcrel; |
| 804 | |
| 805 | // size in bits, or 0 if this table entry should be ignored. |
| 806 | unsigned char bsize; |
| 807 | |
| 808 | // whether we need to check overflow. |
| 809 | unsigned char overflow; |
| 810 | }; |
| 811 | |
| 812 | static const Tilegx_howto howto[elfcpp::R_TILEGX_NUM]; |
| 813 | |
| 814 | private: |
| 815 | |
| 816 | // Do a simple rela relocation |
| 817 | template<int valsize> |
| 818 | static inline void |
| 819 | rela(unsigned char* view, |
| 820 | const Sized_relobj_file<size, big_endian>* object, |
| 821 | const Symbol_value<size>* psymval, |
| 822 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 823 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, |
| 824 | elfcpp::Elf_Xword bitmask) |
| 825 | { |
| 826 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; |
| 827 | Valtype* wv = reinterpret_cast<Valtype*>(view); |
| 828 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); |
| 829 | Valtype reloc = 0; |
| 830 | if (size == 32) |
| 831 | reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; |
| 832 | else |
| 833 | reloc = psymval->value(object, addend) >> srshift; |
| 834 | |
| 835 | elfcpp::Elf_Xword dst_mask = bitmask << doffset; |
| 836 | |
| 837 | val &= ~dst_mask; |
| 838 | reloc &= bitmask; |
| 839 | |
| 840 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset)); |
| 841 | } |
| 842 | |
| 843 | // Do a simple rela relocation |
| 844 | template<int valsize> |
| 845 | static inline void |
| 846 | rela_ua(unsigned char* view, |
| 847 | const Sized_relobj_file<size, big_endian>* object, |
| 848 | const Symbol_value<size>* psymval, |
| 849 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 850 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, |
| 851 | elfcpp::Elf_Xword bitmask) |
| 852 | { |
| 853 | typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype |
| 854 | Valtype; |
| 855 | unsigned char* wv = view; |
| 856 | Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv); |
| 857 | Valtype reloc = 0; |
| 858 | if (size == 32) |
| 859 | reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; |
| 860 | else |
| 861 | reloc = psymval->value(object, addend) >> srshift; |
| 862 | |
| 863 | elfcpp::Elf_Xword dst_mask = bitmask << doffset; |
| 864 | |
| 865 | val &= ~dst_mask; |
| 866 | reloc &= bitmask; |
| 867 | |
| 868 | elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, |
| 869 | val | (reloc<<doffset)); |
| 870 | } |
| 871 | |
| 872 | template<int valsize> |
| 873 | static inline void |
| 874 | rela(unsigned char* view, |
| 875 | const Sized_relobj_file<size, big_endian>* object, |
| 876 | const Symbol_value<size>* psymval, |
| 877 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 878 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1, |
| 879 | elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2, |
| 880 | elfcpp::Elf_Xword bitmask2) |
| 881 | { |
| 882 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; |
| 883 | Valtype* wv = reinterpret_cast<Valtype*>(view); |
| 884 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); |
| 885 | Valtype reloc = 0; |
| 886 | if (size == 32) |
| 887 | reloc = Bits<32>::sign_extend(psymval->value(object, addend)) >> srshift; |
| 888 | else |
| 889 | reloc = psymval->value(object, addend) >> srshift; |
| 890 | |
| 891 | elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1) |
| 892 | | (bitmask2 << doffset2); |
| 893 | val &= ~dst_mask; |
| 894 | reloc = ((reloc & bitmask1) << doffset1) |
| 895 | | ((reloc & bitmask2) << doffset2); |
| 896 | |
| 897 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); |
| 898 | |
| 899 | } |
| 900 | |
| 901 | // Do a simple PC relative relocation with a Symbol_value with the |
| 902 | // addend in the relocation. |
| 903 | template<int valsize> |
| 904 | static inline void |
| 905 | pcrela(unsigned char* view, |
| 906 | const Sized_relobj_file<size, big_endian>* object, |
| 907 | const Symbol_value<size>* psymval, |
| 908 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 909 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 910 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, |
| 911 | elfcpp::Elf_Xword bitmask) |
| 912 | |
| 913 | { |
| 914 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; |
| 915 | Valtype* wv = reinterpret_cast<Valtype*>(view); |
| 916 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); |
| 917 | Valtype reloc = 0; |
| 918 | if (size == 32) |
| 919 | reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) |
| 920 | >> srshift; |
| 921 | else |
| 922 | reloc = (psymval->value(object, addend) - address) >> srshift; |
| 923 | |
| 924 | elfcpp::Elf_Xword dst_mask = bitmask << doffset; |
| 925 | val &= ~dst_mask; |
| 926 | reloc &= bitmask; |
| 927 | |
| 928 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | (reloc<<doffset)); |
| 929 | } |
| 930 | |
| 931 | template<int valsize> |
| 932 | static inline void |
| 933 | pcrela_ua(unsigned char* view, |
| 934 | const Sized_relobj_file<size, big_endian>* object, |
| 935 | const Symbol_value<size>* psymval, |
| 936 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 937 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 938 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset, |
| 939 | elfcpp::Elf_Xword bitmask) |
| 940 | |
| 941 | { |
| 942 | typedef typename elfcpp::Swap_unaligned<valsize, big_endian>::Valtype |
| 943 | Valtype; |
| 944 | unsigned char* wv = view; |
| 945 | Valtype reloc = 0; |
| 946 | if (size == 32) |
| 947 | reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) |
| 948 | >> srshift; |
| 949 | else |
| 950 | reloc = (psymval->value(object, addend) - address) >> srshift; |
| 951 | |
| 952 | reloc &= bitmask; |
| 953 | |
| 954 | elfcpp::Swap<valsize, big_endian>::writeval(wv, reloc << doffset); |
| 955 | } |
| 956 | |
| 957 | template<int valsize> |
| 958 | static inline void |
| 959 | pcrela(unsigned char* view, |
| 960 | const Sized_relobj_file<size, big_endian>* object, |
| 961 | const Symbol_value<size>* psymval, |
| 962 | typename elfcpp::Swap<size, big_endian>::Valtype addend, |
| 963 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 964 | elfcpp::Elf_Xword srshift, elfcpp::Elf_Xword doffset1, |
| 965 | elfcpp::Elf_Xword bitmask1, elfcpp::Elf_Xword doffset2, |
| 966 | elfcpp::Elf_Xword bitmask2) |
| 967 | |
| 968 | { |
| 969 | typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype; |
| 970 | Valtype* wv = reinterpret_cast<Valtype*>(view); |
| 971 | Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv); |
| 972 | Valtype reloc = 0; |
| 973 | if (size == 32) |
| 974 | reloc = Bits<32>::sign_extend(psymval->value(object, addend) - address) |
| 975 | >> srshift; |
| 976 | else |
| 977 | reloc = (psymval->value(object, addend) - address) >> srshift; |
| 978 | |
| 979 | elfcpp::Elf_Xword dst_mask = (bitmask1 << doffset1) |
| 980 | | (bitmask2 << doffset2); |
| 981 | val &= ~dst_mask; |
| 982 | reloc = ((reloc & bitmask1) << doffset1) |
| 983 | | ((reloc & bitmask2) << doffset2); |
| 984 | |
| 985 | elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc); |
| 986 | } |
| 987 | |
| 988 | typedef Tilegx_relocate_functions<size, big_endian> This; |
| 989 | typedef Relocate_functions<size, big_endian> Base; |
| 990 | |
| 991 | public: |
| 992 | |
| 993 | static inline void |
| 994 | abs64(unsigned char* view, |
| 995 | const Sized_relobj_file<size, big_endian>* object, |
| 996 | const Symbol_value<size>* psymval, |
| 997 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
| 998 | { |
| 999 | This::template rela_ua<64>(view, object, psymval, addend, 0, 0, |
| 1000 | 0xffffffffffffffffllu); |
| 1001 | } |
| 1002 | |
| 1003 | static inline void |
| 1004 | abs32(unsigned char* view, |
| 1005 | const Sized_relobj_file<size, big_endian>* object, |
| 1006 | const Symbol_value<size>* psymval, |
| 1007 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
| 1008 | { |
| 1009 | This::template rela_ua<32>(view, object, psymval, addend, 0, 0, |
| 1010 | 0xffffffff); |
| 1011 | } |
| 1012 | |
| 1013 | static inline void |
| 1014 | abs16(unsigned char* view, |
| 1015 | const Sized_relobj_file<size, big_endian>* object, |
| 1016 | const Symbol_value<size>* psymval, |
| 1017 | typename elfcpp::Elf_types<size>::Elf_Addr addend) |
| 1018 | { |
| 1019 | This::template rela_ua<16>(view, object, psymval, addend, 0, 0, |
| 1020 | 0xffff); |
| 1021 | } |
| 1022 | |
| 1023 | static inline void |
| 1024 | pc_abs64(unsigned char* view, |
| 1025 | const Sized_relobj_file<size, big_endian>* object, |
| 1026 | const Symbol_value<size>* psymval, |
| 1027 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1028 | typename elfcpp::Elf_types<size>::Elf_Addr address) |
| 1029 | { |
| 1030 | This::template pcrela_ua<64>(view, object, psymval, addend, address, 0, 0, |
| 1031 | 0xffffffffffffffffllu); |
| 1032 | } |
| 1033 | |
| 1034 | static inline void |
| 1035 | pc_abs32(unsigned char* view, |
| 1036 | const Sized_relobj_file<size, big_endian>* object, |
| 1037 | const Symbol_value<size>* psymval, |
| 1038 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1039 | typename elfcpp::Elf_types<size>::Elf_Addr address) |
| 1040 | { |
| 1041 | This::template pcrela_ua<32>(view, object, psymval, addend, address, 0, 0, |
| 1042 | 0xffffffff); |
| 1043 | } |
| 1044 | |
| 1045 | static inline void |
| 1046 | pc_abs16(unsigned char* view, |
| 1047 | const Sized_relobj_file<size, big_endian>* object, |
| 1048 | const Symbol_value<size>* psymval, |
| 1049 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1050 | typename elfcpp::Elf_types<size>::Elf_Addr address) |
| 1051 | { |
| 1052 | This::template pcrela_ua<16>(view, object, psymval, addend, address, 0, 0, |
| 1053 | 0xffff); |
| 1054 | } |
| 1055 | |
| 1056 | static inline void |
| 1057 | imm_x_general(unsigned char* view, |
| 1058 | const Sized_relobj_file<size, big_endian>* object, |
| 1059 | const Symbol_value<size>* psymval, |
| 1060 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1061 | Tilegx_howto &r_howto) |
| 1062 | { |
| 1063 | This::template rela<64>(view, object, psymval, addend, |
| 1064 | (elfcpp::Elf_Xword)(r_howto.srshift), |
| 1065 | (elfcpp::Elf_Xword)(r_howto.doffset), |
| 1066 | (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1)); |
| 1067 | } |
| 1068 | |
| 1069 | static inline void |
| 1070 | imm_x_pcrel_general(unsigned char* view, |
| 1071 | const Sized_relobj_file<size, big_endian>* object, |
| 1072 | const Symbol_value<size>* psymval, |
| 1073 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1074 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 1075 | Tilegx_howto &r_howto) |
| 1076 | { |
| 1077 | This::template pcrela<64>(view, object, psymval, addend, address, |
| 1078 | (elfcpp::Elf_Xword)(r_howto.srshift), |
| 1079 | (elfcpp::Elf_Xword)(r_howto.doffset), |
| 1080 | (elfcpp::Elf_Xword)((1 << r_howto.bsize) - 1)); |
| 1081 | } |
| 1082 | |
| 1083 | static inline void |
| 1084 | imm_x_two_part_general(unsigned char* view, |
| 1085 | const Sized_relobj_file<size, big_endian>* object, |
| 1086 | const Symbol_value<size>* psymval, |
| 1087 | typename elfcpp::Elf_types<size>::Elf_Addr addend, |
| 1088 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 1089 | unsigned int r_type) |
| 1090 | { |
| 1091 | |
| 1092 | elfcpp::Elf_Xword doffset1 = 0llu; |
| 1093 | elfcpp::Elf_Xword doffset2 = 0llu; |
| 1094 | elfcpp::Elf_Xword dmask1 = 0llu; |
| 1095 | elfcpp::Elf_Xword dmask2 = 0llu; |
| 1096 | elfcpp::Elf_Xword rshift = 0llu; |
| 1097 | unsigned int pc_rel = 0; |
| 1098 | |
| 1099 | switch (r_type) |
| 1100 | { |
| 1101 | case elfcpp::R_TILEGX_BROFF_X1: |
| 1102 | doffset1 = 31llu; |
| 1103 | doffset2 = 37llu; |
| 1104 | dmask1 = 0x3fllu; |
| 1105 | dmask2 = 0x1ffc0llu; |
| 1106 | rshift = 3llu; |
| 1107 | pc_rel = 1; |
| 1108 | break; |
| 1109 | case elfcpp::R_TILEGX_DEST_IMM8_X1: |
| 1110 | doffset1 = 31llu; |
| 1111 | doffset2 = 43llu; |
| 1112 | dmask1 = 0x3fllu; |
| 1113 | dmask2 = 0xc0llu; |
| 1114 | rshift = 0llu; |
| 1115 | break; |
| 1116 | } |
| 1117 | |
| 1118 | if (pc_rel) |
| 1119 | This::template pcrela<64>(view, object, psymval, addend, address, |
| 1120 | rshift, doffset1, dmask1, doffset2, dmask2); |
| 1121 | else |
| 1122 | This::template rela<64>(view, object, psymval, addend, rshift, |
| 1123 | doffset1, dmask1, doffset2, dmask2); |
| 1124 | |
| 1125 | } |
| 1126 | |
| 1127 | static inline void |
| 1128 | tls_relax(unsigned char* view, unsigned int r_type, |
| 1129 | tls::Tls_optimization opt_t) |
| 1130 | { |
| 1131 | |
| 1132 | const uint64_t TILEGX_X_MOVE_R0_R0 = 0x283bf8005107f000llu; |
| 1133 | const uint64_t TILEGX_Y_MOVE_R0_R0 = 0xae05f800540bf000llu; |
| 1134 | const uint64_t TILEGX_X_LD = 0x286ae80000000000llu; |
| 1135 | const uint64_t TILEGX_X_LD4S = 0x286a980000000000llu; |
| 1136 | const uint64_t TILEGX_X1_FULL_MASK = 0x3fffffff80000000llu; |
| 1137 | const uint64_t TILEGX_X0_RRR_MASK = 0x000000007ffc0000llu; |
| 1138 | const uint64_t TILEGX_X1_RRR_MASK = 0x3ffe000000000000llu; |
| 1139 | const uint64_t TILEGX_Y0_RRR_MASK = 0x00000000780c0000llu; |
| 1140 | const uint64_t TILEGX_Y1_RRR_MASK = 0x3c06000000000000llu; |
| 1141 | const uint64_t TILEGX_X0_RRR_SRCB_MASK = 0x000000007ffff000llu; |
| 1142 | const uint64_t TILEGX_X1_RRR_SRCB_MASK = 0x3ffff80000000000llu; |
| 1143 | const uint64_t TILEGX_Y0_RRR_SRCB_MASK = 0x00000000780ff000llu; |
| 1144 | const uint64_t TILEGX_Y1_RRR_SRCB_MASK = 0x3c07f80000000000llu; |
| 1145 | const uint64_t TILEGX_X_ADD_R0_R0_TP = 0x2807a800500f5000llu; |
| 1146 | const uint64_t TILEGX_Y_ADD_R0_R0_TP = 0x9a13a8002c275000llu; |
| 1147 | const uint64_t TILEGX_X_ADDX_R0_R0_TP = 0x2805a800500b5000llu; |
| 1148 | const uint64_t TILEGX_Y_ADDX_R0_R0_TP = 0x9a01a8002c035000llu; |
| 1149 | |
| 1150 | const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_MASK = |
| 1151 | (TILEGX_X0_RRR_MASK | (0x3Fllu << 12)); |
| 1152 | |
| 1153 | const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_MASK = |
| 1154 | (TILEGX_X1_RRR_MASK | (0x3Fllu << 43)); |
| 1155 | |
| 1156 | const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_MASK = |
| 1157 | (TILEGX_Y0_RRR_MASK | (0x3Fllu << 12)); |
| 1158 | |
| 1159 | const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_MASK = |
| 1160 | (TILEGX_Y1_RRR_MASK | (0x3Fllu << 43)); |
| 1161 | |
| 1162 | const uint64_t R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK = |
| 1163 | (TILEGX_X0_RRR_SRCB_MASK | (0x3Fllu << 6)); |
| 1164 | |
| 1165 | const uint64_t R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK = |
| 1166 | (TILEGX_X1_RRR_SRCB_MASK | (0x3Fllu << 37)); |
| 1167 | |
| 1168 | const uint64_t R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK = |
| 1169 | (TILEGX_Y0_RRR_SRCB_MASK | (0x3Fllu << 6)); |
| 1170 | |
| 1171 | const uint64_t R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK = |
| 1172 | (TILEGX_Y1_RRR_SRCB_MASK | (0x3Fllu << 37)); |
| 1173 | |
| 1174 | typedef typename elfcpp::Swap<64, big_endian>::Valtype Valtype; |
| 1175 | Valtype* wv = reinterpret_cast<Valtype*>(view); |
| 1176 | Valtype val = elfcpp::Swap<64, big_endian>::readval(wv); |
| 1177 | Valtype reloc = 0; |
| 1178 | |
| 1179 | switch (r_type) |
| 1180 | { |
| 1181 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 1182 | if (opt_t == tls::TLSOPT_NONE) { |
| 1183 | // GD/IE: 1. copy dest operand into the second source operand |
| 1184 | // 2. change the opcode to "add" |
| 1185 | reloc = (val & 0x3Fllu) << 12; // featch the dest reg |
| 1186 | reloc |= ((size == 32 |
| 1187 | ? TILEGX_X_ADDX_R0_R0_TP |
| 1188 | : TILEGX_X_ADD_R0_R0_TP) |
| 1189 | & TILEGX_X0_RRR_MASK); // change opcode |
| 1190 | val &= ~R_TILEGX_IMM8_X0_TLS_ADD_MASK; |
| 1191 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1192 | // LE: 1. copy dest operand into the first source operand |
| 1193 | // 2. change the opcode to "move" |
| 1194 | reloc = (val & 0x3Fllu) << 6; |
| 1195 | reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK); |
| 1196 | val &= ~R_TILEGX_IMM8_X0_TLS_ADD_LE_MASK; |
| 1197 | } else |
| 1198 | gold_unreachable(); |
| 1199 | break; |
| 1200 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 1201 | if (opt_t == tls::TLSOPT_NONE) { |
| 1202 | reloc = (val & (0x3Fllu << 31)) << 12; |
| 1203 | reloc |= ((size == 32 |
| 1204 | ? TILEGX_X_ADDX_R0_R0_TP |
| 1205 | : TILEGX_X_ADD_R0_R0_TP) |
| 1206 | & TILEGX_X1_RRR_MASK); |
| 1207 | val &= ~R_TILEGX_IMM8_X1_TLS_ADD_MASK; |
| 1208 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1209 | reloc = (val & (0x3Fllu << 31)) << 6; |
| 1210 | reloc |= (TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK); |
| 1211 | val &= ~R_TILEGX_IMM8_X1_TLS_ADD_LE_MASK; |
| 1212 | } else |
| 1213 | gold_unreachable(); |
| 1214 | break; |
| 1215 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 1216 | if (opt_t == tls::TLSOPT_NONE) { |
| 1217 | reloc = (val & 0x3Fllu) << 12; |
| 1218 | reloc |= ((size == 32 |
| 1219 | ? TILEGX_Y_ADDX_R0_R0_TP |
| 1220 | : TILEGX_Y_ADD_R0_R0_TP) |
| 1221 | & TILEGX_Y0_RRR_MASK); |
| 1222 | val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_MASK; |
| 1223 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1224 | reloc = (val & 0x3Fllu) << 6; |
| 1225 | reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK); |
| 1226 | val &= ~R_TILEGX_IMM8_Y0_TLS_ADD_LE_MASK; |
| 1227 | } else |
| 1228 | gold_unreachable(); |
| 1229 | break; |
| 1230 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 1231 | if (opt_t == tls::TLSOPT_NONE) { |
| 1232 | reloc = (val & (0x3Fllu << 31)) << 12; |
| 1233 | reloc |= ((size == 32 |
| 1234 | ? TILEGX_Y_ADDX_R0_R0_TP |
| 1235 | : TILEGX_Y_ADD_R0_R0_TP) |
| 1236 | & TILEGX_Y1_RRR_MASK); |
| 1237 | val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_MASK; |
| 1238 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1239 | reloc = (val & (0x3Fllu << 31)) << 6; |
| 1240 | reloc |= (TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK); |
| 1241 | val &= ~R_TILEGX_IMM8_Y1_TLS_ADD_LE_MASK; |
| 1242 | } else |
| 1243 | gold_unreachable(); |
| 1244 | break; |
| 1245 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 1246 | if (opt_t == tls::TLSOPT_NONE) { |
| 1247 | // GD see comments for optimize_tls_reloc |
| 1248 | reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X0_RRR_SRCB_MASK; |
| 1249 | val &= ~TILEGX_X0_RRR_SRCB_MASK; |
| 1250 | } else if (opt_t == tls::TLSOPT_TO_IE |
| 1251 | || opt_t == tls::TLSOPT_TO_LE) { |
| 1252 | // IE/LE |
| 1253 | reloc = (size == 32 |
| 1254 | ? TILEGX_X_ADDX_R0_R0_TP |
| 1255 | : TILEGX_X_ADD_R0_R0_TP) |
| 1256 | & TILEGX_X0_RRR_SRCB_MASK; |
| 1257 | val &= ~TILEGX_X0_RRR_SRCB_MASK; |
| 1258 | } |
| 1259 | break; |
| 1260 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 1261 | if (opt_t == tls::TLSOPT_NONE) { |
| 1262 | reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK; |
| 1263 | val &= ~TILEGX_X1_RRR_SRCB_MASK; |
| 1264 | } else if (opt_t == tls::TLSOPT_TO_IE |
| 1265 | || opt_t == tls::TLSOPT_TO_LE) { |
| 1266 | reloc = (size == 32 |
| 1267 | ? TILEGX_X_ADDX_R0_R0_TP |
| 1268 | : TILEGX_X_ADD_R0_R0_TP) |
| 1269 | & TILEGX_X1_RRR_SRCB_MASK; |
| 1270 | val &= ~TILEGX_X1_RRR_SRCB_MASK; |
| 1271 | } |
| 1272 | break; |
| 1273 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 1274 | if (opt_t == tls::TLSOPT_NONE) { |
| 1275 | reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y0_RRR_SRCB_MASK; |
| 1276 | val &= ~TILEGX_Y0_RRR_SRCB_MASK; |
| 1277 | } else if (opt_t == tls::TLSOPT_TO_IE |
| 1278 | || opt_t == tls::TLSOPT_TO_LE) { |
| 1279 | reloc = (size == 32 |
| 1280 | ? TILEGX_Y_ADDX_R0_R0_TP |
| 1281 | : TILEGX_Y_ADD_R0_R0_TP) |
| 1282 | & TILEGX_Y0_RRR_SRCB_MASK; |
| 1283 | val &= ~TILEGX_Y0_RRR_SRCB_MASK; |
| 1284 | } |
| 1285 | break; |
| 1286 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 1287 | if (opt_t == tls::TLSOPT_NONE) { |
| 1288 | reloc = TILEGX_Y_MOVE_R0_R0 & TILEGX_Y1_RRR_SRCB_MASK; |
| 1289 | val &= ~TILEGX_Y1_RRR_SRCB_MASK; |
| 1290 | } else if (opt_t == tls::TLSOPT_TO_IE |
| 1291 | || opt_t == tls::TLSOPT_TO_LE) { |
| 1292 | reloc = (size == 32 |
| 1293 | ? TILEGX_Y_ADDX_R0_R0_TP |
| 1294 | : TILEGX_Y_ADD_R0_R0_TP) |
| 1295 | & TILEGX_Y1_RRR_SRCB_MASK; |
| 1296 | val &= ~TILEGX_Y1_RRR_SRCB_MASK; |
| 1297 | } |
| 1298 | break; |
| 1299 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 1300 | if (opt_t == tls::TLSOPT_NONE) { |
| 1301 | // IE |
| 1302 | reloc = (size == 32 |
| 1303 | ? TILEGX_X_LD4S |
| 1304 | : TILEGX_X_LD) |
| 1305 | & TILEGX_X1_RRR_SRCB_MASK; |
| 1306 | val &= ~TILEGX_X1_RRR_SRCB_MASK; |
| 1307 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1308 | // LE |
| 1309 | reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_RRR_SRCB_MASK; |
| 1310 | val &= ~TILEGX_X1_RRR_SRCB_MASK; |
| 1311 | } else |
| 1312 | gold_unreachable(); |
| 1313 | break; |
| 1314 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 1315 | if (opt_t == tls::TLSOPT_TO_IE) { |
| 1316 | // ld/ld4s r0, r0 |
| 1317 | reloc = (size == 32 |
| 1318 | ? TILEGX_X_LD4S |
| 1319 | : TILEGX_X_LD) & TILEGX_X1_FULL_MASK; |
| 1320 | val &= ~TILEGX_X1_FULL_MASK; |
| 1321 | } else if (opt_t == tls::TLSOPT_TO_LE) { |
| 1322 | // move r0, r0 |
| 1323 | reloc = TILEGX_X_MOVE_R0_R0 & TILEGX_X1_FULL_MASK; |
| 1324 | val &= ~TILEGX_X1_FULL_MASK; |
| 1325 | } else |
| 1326 | // should be handled in ::relocate |
| 1327 | gold_unreachable(); |
| 1328 | break; |
| 1329 | default: |
| 1330 | gold_unreachable(); |
| 1331 | break; |
| 1332 | } |
| 1333 | elfcpp::Swap<64, big_endian>::writeval(wv, val | reloc); |
| 1334 | } |
| 1335 | }; |
| 1336 | |
| 1337 | template<> |
| 1338 | const Tilegx_relocate_functions<64, false>::Tilegx_howto |
| 1339 | Tilegx_relocate_functions<64, false>::howto[elfcpp::R_TILEGX_NUM] = |
| 1340 | { |
| 1341 | { 0, 0, 0, 0, 0}, // R_TILEGX_NONE |
| 1342 | { 0, 0, 0, 64, 0}, // R_TILEGX_64 |
| 1343 | { 0, 0, 0, 32, 0}, // R_TILEGX_32 |
| 1344 | { 0, 0, 0, 16, 0}, // R_TILEGX_16 |
| 1345 | { 0, 0, 0, 8, 0}, // R_TILEGX_8 |
| 1346 | { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL |
| 1347 | { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL |
| 1348 | { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL |
| 1349 | { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL |
| 1350 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 |
| 1351 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 |
| 1352 | { 32, 0, 0, 0, 0}, // R_TILEGX_HW2 |
| 1353 | { 48, 0, 0, 0, 0}, // R_TILEGX_HW3 |
| 1354 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST |
| 1355 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST |
| 1356 | { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST |
| 1357 | { 0, 0, 0, 0, 0}, // R_TILEGX_COPY |
| 1358 | { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT |
| 1359 | { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT |
| 1360 | { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE |
| 1361 | { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 |
| 1362 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 |
| 1363 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT |
| 1364 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 |
| 1365 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 |
| 1366 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 |
| 1367 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 |
| 1368 | { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 |
| 1369 | { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 |
| 1370 | { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 |
| 1371 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 |
| 1372 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 |
| 1373 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 |
| 1374 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 |
| 1375 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 |
| 1376 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 |
| 1377 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 |
| 1378 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 |
| 1379 | { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 |
| 1380 | { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 |
| 1381 | { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 |
| 1382 | { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 |
| 1383 | { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 |
| 1384 | { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 |
| 1385 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST |
| 1386 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST |
| 1387 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST |
| 1388 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST |
| 1389 | { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST |
| 1390 | { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST |
| 1391 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL |
| 1392 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL |
| 1393 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL |
| 1394 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL |
| 1395 | { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL |
| 1396 | { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL |
| 1397 | { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL |
| 1398 | { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL |
| 1399 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL |
| 1400 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL |
| 1401 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL |
| 1402 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL |
| 1403 | { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL |
| 1404 | { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL |
| 1405 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT |
| 1406 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT |
| 1407 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL |
| 1408 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL |
| 1409 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL |
| 1410 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL |
| 1411 | { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL |
| 1412 | { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL |
| 1413 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT |
| 1414 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT |
| 1415 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT |
| 1416 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT |
| 1417 | { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT |
| 1418 | { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT |
| 1419 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD |
| 1420 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD |
| 1421 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE |
| 1422 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE |
| 1423 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE |
| 1424 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE |
| 1425 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE |
| 1426 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE |
| 1427 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD |
| 1428 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD |
| 1429 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD |
| 1430 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD |
| 1431 | { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE |
| 1432 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1433 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE |
| 1434 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE |
| 1435 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL |
| 1436 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL |
| 1437 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL |
| 1438 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL |
| 1439 | { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL |
| 1440 | { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL |
| 1441 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE |
| 1442 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE |
| 1443 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE |
| 1444 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE |
| 1445 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1446 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1447 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 |
| 1448 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 |
| 1449 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 |
| 1450 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 |
| 1451 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 |
| 1452 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 |
| 1453 | { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL |
| 1454 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD |
| 1455 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD |
| 1456 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD |
| 1457 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD |
| 1458 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD |
| 1459 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD |
| 1460 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD |
| 1461 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD |
| 1462 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD |
| 1463 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT |
| 1464 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY |
| 1465 | }; |
| 1466 | |
| 1467 | template<> |
| 1468 | const Tilegx_relocate_functions<32, false>::Tilegx_howto |
| 1469 | Tilegx_relocate_functions<32, false>::howto[elfcpp::R_TILEGX_NUM] = |
| 1470 | { |
| 1471 | { 0, 0, 0, 0, 0}, // R_TILEGX_NONE |
| 1472 | { 0, 0, 0, 64, 0}, // R_TILEGX_64 |
| 1473 | { 0, 0, 0, 32, 0}, // R_TILEGX_32 |
| 1474 | { 0, 0, 0, 16, 0}, // R_TILEGX_16 |
| 1475 | { 0, 0, 0, 8, 0}, // R_TILEGX_8 |
| 1476 | { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL |
| 1477 | { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL |
| 1478 | { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL |
| 1479 | { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL |
| 1480 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 |
| 1481 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 |
| 1482 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW2 |
| 1483 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW3 |
| 1484 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST |
| 1485 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST |
| 1486 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST |
| 1487 | { 0, 0, 0, 0, 0}, // R_TILEGX_COPY |
| 1488 | { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT |
| 1489 | { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT |
| 1490 | { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE |
| 1491 | { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 |
| 1492 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 |
| 1493 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT |
| 1494 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 |
| 1495 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 |
| 1496 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 |
| 1497 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 |
| 1498 | { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 |
| 1499 | { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 |
| 1500 | { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 |
| 1501 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 |
| 1502 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 |
| 1503 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 |
| 1504 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 |
| 1505 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 |
| 1506 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 |
| 1507 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 |
| 1508 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 |
| 1509 | { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 |
| 1510 | { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 |
| 1511 | { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 |
| 1512 | { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 |
| 1513 | { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 |
| 1514 | { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 |
| 1515 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST |
| 1516 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST |
| 1517 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST |
| 1518 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST |
| 1519 | { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST |
| 1520 | { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST |
| 1521 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL |
| 1522 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL |
| 1523 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL |
| 1524 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL |
| 1525 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL |
| 1526 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL |
| 1527 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL |
| 1528 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL |
| 1529 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL |
| 1530 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL |
| 1531 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL |
| 1532 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL |
| 1533 | { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL |
| 1534 | { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL |
| 1535 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT |
| 1536 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT |
| 1537 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL |
| 1538 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL |
| 1539 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL |
| 1540 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL |
| 1541 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL |
| 1542 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL |
| 1543 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT |
| 1544 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT |
| 1545 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT |
| 1546 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT |
| 1547 | { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT |
| 1548 | { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT |
| 1549 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD |
| 1550 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD |
| 1551 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE |
| 1552 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE |
| 1553 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE |
| 1554 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE |
| 1555 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE |
| 1556 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE |
| 1557 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD |
| 1558 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD |
| 1559 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD |
| 1560 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD |
| 1561 | { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE |
| 1562 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1563 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE |
| 1564 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE |
| 1565 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL |
| 1566 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL |
| 1567 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL |
| 1568 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL |
| 1569 | { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL |
| 1570 | { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL |
| 1571 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE |
| 1572 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE |
| 1573 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE |
| 1574 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE |
| 1575 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1576 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1577 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 |
| 1578 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 |
| 1579 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 |
| 1580 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 |
| 1581 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 |
| 1582 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 |
| 1583 | { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL |
| 1584 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD |
| 1585 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD |
| 1586 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD |
| 1587 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD |
| 1588 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD |
| 1589 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD |
| 1590 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD |
| 1591 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD |
| 1592 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD |
| 1593 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT |
| 1594 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY |
| 1595 | }; |
| 1596 | |
| 1597 | template<> |
| 1598 | const Tilegx_relocate_functions<64, true>::Tilegx_howto |
| 1599 | Tilegx_relocate_functions<64, true>::howto[elfcpp::R_TILEGX_NUM] = |
| 1600 | { |
| 1601 | { 0, 0, 0, 0, 0}, // R_TILEGX_NONE |
| 1602 | { 0, 0, 0, 64, 0}, // R_TILEGX_64 |
| 1603 | { 0, 0, 0, 32, 0}, // R_TILEGX_32 |
| 1604 | { 0, 0, 0, 16, 0}, // R_TILEGX_16 |
| 1605 | { 0, 0, 0, 8, 0}, // R_TILEGX_8 |
| 1606 | { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL |
| 1607 | { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL |
| 1608 | { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL |
| 1609 | { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL |
| 1610 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 |
| 1611 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 |
| 1612 | { 32, 0, 0, 0, 0}, // R_TILEGX_HW2 |
| 1613 | { 48, 0, 0, 0, 0}, // R_TILEGX_HW3 |
| 1614 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST |
| 1615 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST |
| 1616 | { 32, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST |
| 1617 | { 0, 0, 0, 0, 0}, // R_TILEGX_COPY |
| 1618 | { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT |
| 1619 | { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT |
| 1620 | { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE |
| 1621 | { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 |
| 1622 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 |
| 1623 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT |
| 1624 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 |
| 1625 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 |
| 1626 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 |
| 1627 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 |
| 1628 | { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 |
| 1629 | { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 |
| 1630 | { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 |
| 1631 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 |
| 1632 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 |
| 1633 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 |
| 1634 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 |
| 1635 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 |
| 1636 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 |
| 1637 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 |
| 1638 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 |
| 1639 | { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 |
| 1640 | { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 |
| 1641 | { 32, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 |
| 1642 | { 32, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 |
| 1643 | { 48, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 |
| 1644 | { 48, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 |
| 1645 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST |
| 1646 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST |
| 1647 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST |
| 1648 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST |
| 1649 | { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST |
| 1650 | { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST |
| 1651 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL |
| 1652 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL |
| 1653 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL |
| 1654 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL |
| 1655 | { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL |
| 1656 | { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL |
| 1657 | { 48, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL |
| 1658 | { 48, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL |
| 1659 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL |
| 1660 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL |
| 1661 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL |
| 1662 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL |
| 1663 | { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL |
| 1664 | { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL |
| 1665 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT |
| 1666 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT |
| 1667 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL |
| 1668 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL |
| 1669 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL |
| 1670 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL |
| 1671 | { 32, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL |
| 1672 | { 32, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL |
| 1673 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT |
| 1674 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT |
| 1675 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT |
| 1676 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT |
| 1677 | { 32, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT |
| 1678 | { 32, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT |
| 1679 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD |
| 1680 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD |
| 1681 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE |
| 1682 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE |
| 1683 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE |
| 1684 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE |
| 1685 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE |
| 1686 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE |
| 1687 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD |
| 1688 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD |
| 1689 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD |
| 1690 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD |
| 1691 | { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE |
| 1692 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1693 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE |
| 1694 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE |
| 1695 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL |
| 1696 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL |
| 1697 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL |
| 1698 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL |
| 1699 | { 32, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL |
| 1700 | { 32, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL |
| 1701 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE |
| 1702 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE |
| 1703 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE |
| 1704 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE |
| 1705 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1706 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1707 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 |
| 1708 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 |
| 1709 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 |
| 1710 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 |
| 1711 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 |
| 1712 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 |
| 1713 | { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL |
| 1714 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD |
| 1715 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD |
| 1716 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD |
| 1717 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD |
| 1718 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD |
| 1719 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD |
| 1720 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD |
| 1721 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD |
| 1722 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD |
| 1723 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT |
| 1724 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY |
| 1725 | }; |
| 1726 | |
| 1727 | template<> |
| 1728 | const Tilegx_relocate_functions<32, true>::Tilegx_howto |
| 1729 | Tilegx_relocate_functions<32, true>::howto[elfcpp::R_TILEGX_NUM] = |
| 1730 | { |
| 1731 | { 0, 0, 0, 0, 0}, // R_TILEGX_NONE |
| 1732 | { 0, 0, 0, 64, 0}, // R_TILEGX_64 |
| 1733 | { 0, 0, 0, 32, 0}, // R_TILEGX_32 |
| 1734 | { 0, 0, 0, 16, 0}, // R_TILEGX_16 |
| 1735 | { 0, 0, 0, 8, 0}, // R_TILEGX_8 |
| 1736 | { 0, 0, 1, 64, 0}, // R_TILEGX_64_PCREL |
| 1737 | { 0, 0, 1, 32, 0}, // R_TILEGX_32_PCREL |
| 1738 | { 0, 0, 1, 16, 0}, // R_TILEGX_16_PCREL |
| 1739 | { 0, 0, 1, 8, 0}, // R_TILEGX_8_PCREL |
| 1740 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0 |
| 1741 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1 |
| 1742 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW2 |
| 1743 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW3 |
| 1744 | { 0, 0, 0, 0, 0}, // R_TILEGX_HW0_LAST |
| 1745 | { 16, 0, 0, 0, 0}, // R_TILEGX_HW1_LAST |
| 1746 | { 31, 0, 0, 0, 0}, // R_TILEGX_HW2_LAST |
| 1747 | { 0, 0, 0, 0, 0}, // R_TILEGX_COPY |
| 1748 | { 0, 0, 0, 8, 0}, // R_TILEGX_GLOB_DAT |
| 1749 | { 0, 0, 0, 0, 0}, // R_TILEGX_JMP_SLOT |
| 1750 | { 0, 0, 0, 0, 0}, // R_TILEGX_RELATIVE |
| 1751 | { 3, 1, 1, 0, 0}, // R_TILEGX_BROFF_X1 |
| 1752 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1 |
| 1753 | { 3, 31, 1, 27, 0}, // R_TILEGX_JUMPOFF_X1_PLT |
| 1754 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X0 |
| 1755 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y0 |
| 1756 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_X1 |
| 1757 | { 0, 1, 0, 8, 0}, // R_TILEGX_IMM8_Y1 |
| 1758 | { 0, 1, 0, 8, 0}, // R_TILEGX_DEST_IMM8_X1 |
| 1759 | { 0, 1, 0, 8, 0}, // R_TILEGX_MT_IMM14_X1 |
| 1760 | { 0, 1, 0, 8, 0}, // R_TILEGX_MF_IMM14_X1 |
| 1761 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMSTART_X0 |
| 1762 | { 0, 1, 0, 8, 0}, // R_TILEGX_MMEND_X0 |
| 1763 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X0 |
| 1764 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_X1 |
| 1765 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y0 |
| 1766 | { 0, 1, 0, 8, 0}, // R_TILEGX_SHAMT_Y1 |
| 1767 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0 |
| 1768 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0 |
| 1769 | { 16, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW1 |
| 1770 | { 16, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW1 |
| 1771 | { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW2 |
| 1772 | { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW2 |
| 1773 | { 31, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW3 |
| 1774 | { 31, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW3 |
| 1775 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST |
| 1776 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST |
| 1777 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST |
| 1778 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST |
| 1779 | { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST |
| 1780 | { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST |
| 1781 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PCREL |
| 1782 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PCREL |
| 1783 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PCREL |
| 1784 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PCREL |
| 1785 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PCREL |
| 1786 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PCREL |
| 1787 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW3_PCREL |
| 1788 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW3_PCREL |
| 1789 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PCREL |
| 1790 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PCREL |
| 1791 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PCREL |
| 1792 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PCREL |
| 1793 | { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PCREL |
| 1794 | { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PCREL |
| 1795 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_GOT |
| 1796 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_GOT |
| 1797 | { 0, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW0_PLT_PCREL |
| 1798 | { 0, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW0_PLT_PCREL |
| 1799 | { 16, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW1_PLT_PCREL |
| 1800 | { 16, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW1_PLT_PCREL |
| 1801 | { 31, 12, 1, 16, 0}, // R_TILEGX_IMM16_X0_HW2_PLT_PCREL |
| 1802 | { 31, 43, 1, 16, 0}, // R_TILEGX_IMM16_X1_HW2_PLT_PCREL |
| 1803 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_GOT |
| 1804 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_GOT |
| 1805 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_GOT |
| 1806 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_GOT |
| 1807 | { 31, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_GOT |
| 1808 | { 31, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_GOT |
| 1809 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_GD |
| 1810 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_GD |
| 1811 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_LE |
| 1812 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_LE |
| 1813 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE |
| 1814 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE |
| 1815 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE |
| 1816 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE |
| 1817 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD |
| 1818 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD |
| 1819 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD |
| 1820 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD |
| 1821 | { 0, 0, 0, 0, 0}, // R_TILEGX_IRELATIVE |
| 1822 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1823 | { 0, 12, 0, 16, 0}, // R_TILEGX_IMM16_X0_HW0_TLS_IE |
| 1824 | { 0, 43, 0, 16, 0}, // R_TILEGX_IMM16_X1_HW0_TLS_IE |
| 1825 | { 0, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL |
| 1826 | { 0, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL |
| 1827 | { 16, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL |
| 1828 | { 16, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL |
| 1829 | { 31, 12, 1, 16, 1}, // R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL |
| 1830 | { 31, 43, 1, 16, 1}, // R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL |
| 1831 | { 0, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE |
| 1832 | { 0, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE |
| 1833 | { 16, 12, 0, 16, 1}, // R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE |
| 1834 | { 16, 43, 0, 16, 1}, // R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE |
| 1835 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1836 | { 0, 0, 0, 0, 0}, // R_TILEGX_INVALID |
| 1837 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD64 |
| 1838 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF64 |
| 1839 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF64 |
| 1840 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPMOD32 |
| 1841 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_DTPOFF32 |
| 1842 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_TPOFF32 |
| 1843 | { 3, 31, 1, 27, 0}, // R_TILEGX_TLS_GD_CALL |
| 1844 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_GD_ADD |
| 1845 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_GD_ADD |
| 1846 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_GD_ADD |
| 1847 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_GD_ADD |
| 1848 | { 0, 0, 0, 0, 0}, // R_TILEGX_TLS_IE_LOAD |
| 1849 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X0_TLS_ADD |
| 1850 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_X1_TLS_ADD |
| 1851 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y0_TLS_ADD |
| 1852 | { 0, 0, 0, 0, 0}, // R_TILEGX_IMM8_Y1_TLS_ADD |
| 1853 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTINHERIT |
| 1854 | { 0, 0, 0, 0, 0}, // R_TILEGX_GNU_VTENTRY |
| 1855 | }; |
| 1856 | |
| 1857 | // Get the GOT section, creating it if necessary. |
| 1858 | |
| 1859 | template<int size, bool big_endian> |
| 1860 | Output_data_got<size, big_endian>* |
| 1861 | Target_tilegx<size, big_endian>::got_section(Symbol_table* symtab, |
| 1862 | Layout* layout) |
| 1863 | { |
| 1864 | if (this->got_ == NULL) |
| 1865 | { |
| 1866 | gold_assert(symtab != NULL && layout != NULL); |
| 1867 | |
| 1868 | // When using -z now, we can treat .got.plt as a relro section. |
| 1869 | // Without -z now, it is modified after program startup by lazy |
| 1870 | // PLT relocations. |
| 1871 | bool is_got_plt_relro = parameters->options().now(); |
| 1872 | Output_section_order got_order = (is_got_plt_relro |
| 1873 | ? ORDER_RELRO |
| 1874 | : ORDER_RELRO_LAST); |
| 1875 | Output_section_order got_plt_order = (is_got_plt_relro |
| 1876 | ? ORDER_RELRO |
| 1877 | : ORDER_NON_RELRO_FIRST); |
| 1878 | |
| 1879 | this->got_ = new Output_data_got<size, big_endian>(); |
| 1880 | |
| 1881 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
| 1882 | (elfcpp::SHF_ALLOC |
| 1883 | | elfcpp::SHF_WRITE), |
| 1884 | this->got_, got_order, true); |
| 1885 | |
| 1886 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the PLT. |
| 1887 | this->global_offset_table_ = |
| 1888 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, |
| 1889 | Symbol_table::PREDEFINED, |
| 1890 | this->got_, |
| 1891 | 0, 0, elfcpp::STT_OBJECT, |
| 1892 | elfcpp::STB_LOCAL, |
| 1893 | elfcpp::STV_HIDDEN, 0, |
| 1894 | false, false); |
| 1895 | |
| 1896 | if (parameters->options().shared()) { |
| 1897 | // we need to keep the address of .dynamic section in the |
| 1898 | // first got entry for .so |
| 1899 | this->tilegx_dynamic_ = |
| 1900 | symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL, |
| 1901 | Symbol_table::PREDEFINED, |
| 1902 | layout->dynamic_section(), |
| 1903 | 0, 0, elfcpp::STT_OBJECT, |
| 1904 | elfcpp::STB_LOCAL, |
| 1905 | elfcpp::STV_HIDDEN, 0, |
| 1906 | false, false); |
| 1907 | |
| 1908 | this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD); |
| 1909 | } else |
| 1910 | // for executable, just set the first entry to zero. |
| 1911 | this->got_->set_current_data_size(size / 8); |
| 1912 | |
| 1913 | this->got_plt_ = new Output_data_space(size / 8, "** GOT PLT"); |
| 1914 | layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, |
| 1915 | (elfcpp::SHF_ALLOC |
| 1916 | | elfcpp::SHF_WRITE), |
| 1917 | this->got_plt_, got_plt_order, |
| 1918 | is_got_plt_relro); |
| 1919 | |
| 1920 | // The first two entries are reserved. |
| 1921 | this->got_plt_->set_current_data_size |
| 1922 | (TILEGX_GOTPLT_RESERVE_COUNT * (size / 8)); |
| 1923 | |
| 1924 | if (!is_got_plt_relro) |
| 1925 | { |
| 1926 | // Those bytes can go into the relro segment. |
| 1927 | layout->increase_relro(size / 8); |
| 1928 | } |
| 1929 | |
| 1930 | |
| 1931 | // If there are any IRELATIVE relocations, they get GOT entries |
| 1932 | // in .got.plt after the jump slot entries. |
| 1933 | this->got_irelative_ |
| 1934 | = new Output_data_space(size / 8, "** GOT IRELATIVE PLT"); |
| 1935 | layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, |
| 1936 | (elfcpp::SHF_ALLOC |
| 1937 | | elfcpp::SHF_WRITE), |
| 1938 | this->got_irelative_, |
| 1939 | got_plt_order, is_got_plt_relro); |
| 1940 | } |
| 1941 | |
| 1942 | return this->got_; |
| 1943 | } |
| 1944 | |
| 1945 | // Get the dynamic reloc section, creating it if necessary. |
| 1946 | |
| 1947 | template<int size, bool big_endian> |
| 1948 | typename Target_tilegx<size, big_endian>::Reloc_section* |
| 1949 | Target_tilegx<size, big_endian>::rela_dyn_section(Layout* layout) |
| 1950 | { |
| 1951 | if (this->rela_dyn_ == NULL) |
| 1952 | { |
| 1953 | gold_assert(layout != NULL); |
| 1954 | this->rela_dyn_ = new Reloc_section(parameters->options().combreloc()); |
| 1955 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
| 1956 | elfcpp::SHF_ALLOC, this->rela_dyn_, |
| 1957 | ORDER_DYNAMIC_RELOCS, false); |
| 1958 | } |
| 1959 | return this->rela_dyn_; |
| 1960 | } |
| 1961 | |
| 1962 | // Get the section to use for IRELATIVE relocs, creating it if |
| 1963 | // necessary. These go in .rela.dyn, but only after all other dynamic |
| 1964 | // relocations. They need to follow the other dynamic relocations so |
| 1965 | // that they can refer to global variables initialized by those |
| 1966 | // relocs. |
| 1967 | |
| 1968 | template<int size, bool big_endian> |
| 1969 | typename Target_tilegx<size, big_endian>::Reloc_section* |
| 1970 | Target_tilegx<size, big_endian>::rela_irelative_section(Layout* layout) |
| 1971 | { |
| 1972 | if (this->rela_irelative_ == NULL) |
| 1973 | { |
| 1974 | // Make sure we have already created the dynamic reloc section. |
| 1975 | this->rela_dyn_section(layout); |
| 1976 | this->rela_irelative_ = new Reloc_section(false); |
| 1977 | layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA, |
| 1978 | elfcpp::SHF_ALLOC, this->rela_irelative_, |
| 1979 | ORDER_DYNAMIC_RELOCS, false); |
| 1980 | gold_assert(this->rela_dyn_->output_section() |
| 1981 | == this->rela_irelative_->output_section()); |
| 1982 | } |
| 1983 | return this->rela_irelative_; |
| 1984 | } |
| 1985 | |
| 1986 | // Initialize the PLT section. |
| 1987 | |
| 1988 | template<int size, bool big_endian> |
| 1989 | void |
| 1990 | Output_data_plt_tilegx<size, big_endian>::init(Layout* layout) |
| 1991 | { |
| 1992 | this->rel_ = new Reloc_section(false); |
| 1993 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
| 1994 | elfcpp::SHF_ALLOC, this->rel_, |
| 1995 | ORDER_DYNAMIC_PLT_RELOCS, false); |
| 1996 | } |
| 1997 | |
| 1998 | template<int size, bool big_endian> |
| 1999 | void |
| 2000 | Output_data_plt_tilegx<size, big_endian>::do_adjust_output_section( |
| 2001 | Output_section* os) |
| 2002 | { |
| 2003 | os->set_entsize(this->get_plt_entry_size()); |
| 2004 | } |
| 2005 | |
| 2006 | // Add an entry to the PLT. |
| 2007 | |
| 2008 | template<int size, bool big_endian> |
| 2009 | void |
| 2010 | Output_data_plt_tilegx<size, big_endian>::add_entry(Symbol_table* symtab, |
| 2011 | Layout* layout, Symbol* gsym) |
| 2012 | { |
| 2013 | gold_assert(!gsym->has_plt_offset()); |
| 2014 | |
| 2015 | unsigned int plt_index; |
| 2016 | off_t plt_offset; |
| 2017 | section_offset_type got_offset; |
| 2018 | |
| 2019 | unsigned int* pcount; |
| 2020 | unsigned int reserved; |
| 2021 | Output_data_space* got; |
| 2022 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
| 2023 | && gsym->can_use_relative_reloc(false)) |
| 2024 | { |
| 2025 | pcount = &this->irelative_count_; |
| 2026 | reserved = 0; |
| 2027 | got = this->got_irelative_; |
| 2028 | } |
| 2029 | else |
| 2030 | { |
| 2031 | pcount = &this->count_; |
| 2032 | reserved = TILEGX_GOTPLT_RESERVE_COUNT; |
| 2033 | got = this->got_plt_; |
| 2034 | } |
| 2035 | |
| 2036 | if (!this->is_data_size_valid()) |
| 2037 | { |
| 2038 | plt_index = *pcount; |
| 2039 | |
| 2040 | // TILEGX .plt section layout |
| 2041 | // |
| 2042 | // ---- |
| 2043 | // plt_header |
| 2044 | // ---- |
| 2045 | // plt stub |
| 2046 | // ---- |
| 2047 | // ... |
| 2048 | // ---- |
| 2049 | // |
| 2050 | // TILEGX .got.plt section layout |
| 2051 | // |
| 2052 | // ---- |
| 2053 | // reserv1 |
| 2054 | // ---- |
| 2055 | // reserv2 |
| 2056 | // ---- |
| 2057 | // entries for normal function |
| 2058 | // ---- |
| 2059 | // ... |
| 2060 | // ---- |
| 2061 | // entries for ifunc |
| 2062 | // ---- |
| 2063 | // ... |
| 2064 | // ---- |
| 2065 | if (got == this->got_irelative_) |
| 2066 | plt_offset = plt_index * this->get_plt_entry_size(); |
| 2067 | else |
| 2068 | plt_offset = (plt_index + 1) * this->get_plt_entry_size(); |
| 2069 | |
| 2070 | ++*pcount; |
| 2071 | |
| 2072 | got_offset = (plt_index + reserved) * (size / 8); |
| 2073 | gold_assert(got_offset == got->current_data_size()); |
| 2074 | |
| 2075 | // Every PLT entry needs a GOT entry which points back to the PLT |
| 2076 | // entry (this will be changed by the dynamic linker, normally |
| 2077 | // lazily when the function is called). |
| 2078 | got->set_current_data_size(got_offset + size / 8); |
| 2079 | } |
| 2080 | else |
| 2081 | { |
| 2082 | // FIXME: This is probably not correct for IRELATIVE relocs. |
| 2083 | |
| 2084 | // For incremental updates, find an available slot. |
| 2085 | plt_offset = this->free_list_.allocate(this->get_plt_entry_size(), |
| 2086 | this->get_plt_entry_size(), 0); |
| 2087 | if (plt_offset == -1) |
| 2088 | gold_fallback(_("out of patch space (PLT);" |
| 2089 | " relink with --incremental-full")); |
| 2090 | |
| 2091 | // The GOT and PLT entries have a 1-1 correspondance, so the GOT offset |
| 2092 | // can be calculated from the PLT index, adjusting for the three |
| 2093 | // reserved entries at the beginning of the GOT. |
| 2094 | plt_index = plt_offset / this->get_plt_entry_size() - 1; |
| 2095 | got_offset = (plt_index + reserved) * (size / 8); |
| 2096 | } |
| 2097 | |
| 2098 | gsym->set_plt_offset(plt_offset); |
| 2099 | |
| 2100 | // Every PLT entry needs a reloc. |
| 2101 | this->add_relocation(symtab, layout, gsym, got_offset); |
| 2102 | |
| 2103 | // Note that we don't need to save the symbol. The contents of the |
| 2104 | // PLT are independent of which symbols are used. The symbols only |
| 2105 | // appear in the relocations. |
| 2106 | } |
| 2107 | |
| 2108 | // Add an entry to the PLT for a local STT_GNU_IFUNC symbol. Return |
| 2109 | // the PLT offset. |
| 2110 | |
| 2111 | template<int size, bool big_endian> |
| 2112 | unsigned int |
| 2113 | Output_data_plt_tilegx<size, big_endian>::add_local_ifunc_entry( |
| 2114 | Symbol_table* symtab, |
| 2115 | Layout* layout, |
| 2116 | Sized_relobj_file<size, big_endian>* relobj, |
| 2117 | unsigned int local_sym_index) |
| 2118 | { |
| 2119 | unsigned int plt_offset = |
| 2120 | this->irelative_count_ * this->get_plt_entry_size(); |
| 2121 | ++this->irelative_count_; |
| 2122 | |
| 2123 | section_offset_type got_offset = this->got_irelative_->current_data_size(); |
| 2124 | |
| 2125 | // Every PLT entry needs a GOT entry which points back to the PLT |
| 2126 | // entry. |
| 2127 | this->got_irelative_->set_current_data_size(got_offset + size / 8); |
| 2128 | |
| 2129 | // Every PLT entry needs a reloc. |
| 2130 | Reloc_section* rela = this->rela_irelative(symtab, layout); |
| 2131 | rela->add_symbolless_local_addend(relobj, local_sym_index, |
| 2132 | elfcpp::R_TILEGX_IRELATIVE, |
| 2133 | this->got_irelative_, got_offset, 0); |
| 2134 | |
| 2135 | return plt_offset; |
| 2136 | } |
| 2137 | |
| 2138 | // Add the relocation for a PLT entry. |
| 2139 | |
| 2140 | template<int size, bool big_endian> |
| 2141 | void |
| 2142 | Output_data_plt_tilegx<size, big_endian>::add_relocation(Symbol_table* symtab, |
| 2143 | Layout* layout, |
| 2144 | Symbol* gsym, |
| 2145 | unsigned int got_offset) |
| 2146 | { |
| 2147 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
| 2148 | && gsym->can_use_relative_reloc(false)) |
| 2149 | { |
| 2150 | Reloc_section* rela = this->rela_irelative(symtab, layout); |
| 2151 | rela->add_symbolless_global_addend(gsym, elfcpp::R_TILEGX_IRELATIVE, |
| 2152 | this->got_irelative_, got_offset, 0); |
| 2153 | } |
| 2154 | else |
| 2155 | { |
| 2156 | gsym->set_needs_dynsym_entry(); |
| 2157 | this->rel_->add_global(gsym, elfcpp::R_TILEGX_JMP_SLOT, this->got_plt_, |
| 2158 | got_offset, 0); |
| 2159 | } |
| 2160 | } |
| 2161 | |
| 2162 | // Return where the IRELATIVE relocations should go in the PLT. These |
| 2163 | // follow the JUMP_SLOT and the TLSDESC relocations. |
| 2164 | |
| 2165 | template<int size, bool big_endian> |
| 2166 | typename Output_data_plt_tilegx<size, big_endian>::Reloc_section* |
| 2167 | Output_data_plt_tilegx<size, big_endian>::rela_irelative(Symbol_table* symtab, |
| 2168 | Layout* layout) |
| 2169 | { |
| 2170 | if (this->irelative_rel_ == NULL) |
| 2171 | { |
| 2172 | // case we see any later on. |
| 2173 | this->irelative_rel_ = new Reloc_section(false); |
| 2174 | layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA, |
| 2175 | elfcpp::SHF_ALLOC, this->irelative_rel_, |
| 2176 | ORDER_DYNAMIC_PLT_RELOCS, false); |
| 2177 | gold_assert(this->irelative_rel_->output_section() |
| 2178 | == this->rel_->output_section()); |
| 2179 | |
| 2180 | if (parameters->doing_static_link()) |
| 2181 | { |
| 2182 | // A statically linked executable will only have a .rela.plt |
| 2183 | // section to hold R_TILEGX_IRELATIVE relocs for |
| 2184 | // STT_GNU_IFUNC symbols. The library will use these |
| 2185 | // symbols to locate the IRELATIVE relocs at program startup |
| 2186 | // time. |
| 2187 | symtab->define_in_output_data("__rela_iplt_start", NULL, |
| 2188 | Symbol_table::PREDEFINED, |
| 2189 | this->irelative_rel_, 0, 0, |
| 2190 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, |
| 2191 | elfcpp::STV_HIDDEN, 0, false, true); |
| 2192 | symtab->define_in_output_data("__rela_iplt_end", NULL, |
| 2193 | Symbol_table::PREDEFINED, |
| 2194 | this->irelative_rel_, 0, 0, |
| 2195 | elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL, |
| 2196 | elfcpp::STV_HIDDEN, 0, true, true); |
| 2197 | } |
| 2198 | } |
| 2199 | return this->irelative_rel_; |
| 2200 | } |
| 2201 | |
| 2202 | // Return the PLT address to use for a global symbol. |
| 2203 | |
| 2204 | template<int size, bool big_endian> |
| 2205 | uint64_t |
| 2206 | Output_data_plt_tilegx<size, big_endian>::address_for_global( |
| 2207 | const Symbol* gsym) |
| 2208 | { |
| 2209 | uint64_t offset = 0; |
| 2210 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
| 2211 | && gsym->can_use_relative_reloc(false)) |
| 2212 | offset = (this->count_ + 1) * this->get_plt_entry_size(); |
| 2213 | return this->address() + offset + gsym->plt_offset(); |
| 2214 | } |
| 2215 | |
| 2216 | // Return the PLT address to use for a local symbol. These are always |
| 2217 | // IRELATIVE relocs. |
| 2218 | |
| 2219 | template<int size, bool big_endian> |
| 2220 | uint64_t |
| 2221 | Output_data_plt_tilegx<size, big_endian>::address_for_local( |
| 2222 | const Relobj* object, |
| 2223 | unsigned int r_sym) |
| 2224 | { |
| 2225 | return (this->address() |
| 2226 | + (this->count_ + 1) * this->get_plt_entry_size() |
| 2227 | + object->local_plt_offset(r_sym)); |
| 2228 | } |
| 2229 | |
| 2230 | // Set the final size. |
| 2231 | template<int size, bool big_endian> |
| 2232 | void |
| 2233 | Output_data_plt_tilegx<size, big_endian>::set_final_data_size() |
| 2234 | { |
| 2235 | unsigned int count = this->count_ + this->irelative_count_; |
| 2236 | this->set_data_size((count + 1) * this->get_plt_entry_size()); |
| 2237 | } |
| 2238 | |
| 2239 | // The first entry in the PLT for an executable. |
| 2240 | template<> |
| 2241 | const unsigned char |
| 2242 | Output_data_plt_tilegx<64, false>::first_plt_entry[plt_entry_size] = |
| 2243 | { |
| 2244 | 0x00, 0x30, 0x48, 0x51, |
| 2245 | 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 } |
| 2246 | 0x00, 0x30, 0xbc, 0x35, |
| 2247 | 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 } |
| 2248 | 0xff, 0xaf, 0x30, 0x40, |
| 2249 | 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } |
| 2250 | // padding |
| 2251 | 0x00, 0x00, 0x00, 0x00, |
| 2252 | 0x00, 0x00, 0x00, 0x00, |
| 2253 | 0x00, 0x00, 0x00, 0x00, |
| 2254 | 0x00, 0x00, 0x00, 0x00 |
| 2255 | }; |
| 2256 | |
| 2257 | template<> |
| 2258 | const unsigned char |
| 2259 | Output_data_plt_tilegx<32, false>::first_plt_entry[plt_entry_size] = |
| 2260 | { |
| 2261 | 0x00, 0x30, 0x48, 0x51, |
| 2262 | 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 } |
| 2263 | 0x00, 0x30, 0xbc, 0x35, |
| 2264 | 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 } |
| 2265 | 0xff, 0xaf, 0x30, 0x40, |
| 2266 | 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } |
| 2267 | // padding |
| 2268 | 0x00, 0x00, 0x00, 0x00, |
| 2269 | 0x00, 0x00, 0x00, 0x00, |
| 2270 | 0x00, 0x00, 0x00, 0x00, |
| 2271 | 0x00, 0x00, 0x00, 0x00 |
| 2272 | }; |
| 2273 | |
| 2274 | template<> |
| 2275 | const unsigned char |
| 2276 | Output_data_plt_tilegx<64, true>::first_plt_entry[plt_entry_size] = |
| 2277 | { |
| 2278 | 0x00, 0x30, 0x48, 0x51, |
| 2279 | 0x6e, 0x43, 0xa0, 0x18, // { ld_add r28, r27, 8 } |
| 2280 | 0x00, 0x30, 0xbc, 0x35, |
| 2281 | 0x00, 0x40, 0xde, 0x9e, // { ld r27, r27 } |
| 2282 | 0xff, 0xaf, 0x30, 0x40, |
| 2283 | 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } |
| 2284 | // padding |
| 2285 | 0x00, 0x00, 0x00, 0x00, |
| 2286 | 0x00, 0x00, 0x00, 0x00, |
| 2287 | 0x00, 0x00, 0x00, 0x00, |
| 2288 | 0x00, 0x00, 0x00, 0x00 |
| 2289 | }; |
| 2290 | |
| 2291 | template<> |
| 2292 | const unsigned char |
| 2293 | Output_data_plt_tilegx<32, true>::first_plt_entry[plt_entry_size] = |
| 2294 | { |
| 2295 | 0x00, 0x30, 0x48, 0x51, |
| 2296 | 0x6e, 0x23, 0x58, 0x18, // { ld4s_add r28, r27, 4 } |
| 2297 | 0x00, 0x30, 0xbc, 0x35, |
| 2298 | 0x00, 0x40, 0xde, 0x9c, // { ld4s r27, r27 } |
| 2299 | 0xff, 0xaf, 0x30, 0x40, |
| 2300 | 0x60, 0x73, 0x6a, 0x28, // { info 10 ; jr r27 } |
| 2301 | // padding |
| 2302 | 0x00, 0x00, 0x00, 0x00, |
| 2303 | 0x00, 0x00, 0x00, 0x00, |
| 2304 | 0x00, 0x00, 0x00, 0x00, |
| 2305 | 0x00, 0x00, 0x00, 0x00 |
| 2306 | }; |
| 2307 | |
| 2308 | template<int size, bool big_endian> |
| 2309 | void |
| 2310 | Output_data_plt_tilegx<size, big_endian>::fill_first_plt_entry( |
| 2311 | unsigned char* pov) |
| 2312 | { |
| 2313 | memcpy(pov, first_plt_entry, plt_entry_size); |
| 2314 | } |
| 2315 | |
| 2316 | // Subsequent entries in the PLT for an executable. |
| 2317 | |
| 2318 | template<> |
| 2319 | const unsigned char |
| 2320 | Output_data_plt_tilegx<64, false>::plt_entry[plt_entry_size] = |
| 2321 | { |
| 2322 | 0xdc, 0x0f, 0x00, 0x10, |
| 2323 | 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } |
| 2324 | 0xdb, 0x0f, 0x00, 0x10, |
| 2325 | 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } |
| 2326 | 0x9c, 0xc6, 0x0d, 0xd0, |
| 2327 | 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } |
| 2328 | 0x9b, 0xb6, 0xc5, 0xad, |
| 2329 | 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 } |
| 2330 | 0xdd, 0x0f, 0x00, 0x70, |
| 2331 | 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } |
| 2332 | |
| 2333 | }; |
| 2334 | |
| 2335 | template<> |
| 2336 | const unsigned char |
| 2337 | Output_data_plt_tilegx<32, false>::plt_entry[plt_entry_size] = |
| 2338 | { |
| 2339 | 0xdc, 0x0f, 0x00, 0x10, |
| 2340 | 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } |
| 2341 | 0xdb, 0x0f, 0x00, 0x10, |
| 2342 | 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } |
| 2343 | 0x9c, 0xc6, 0x0d, 0xd0, |
| 2344 | 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } |
| 2345 | 0x9b, 0xb6, 0xc5, 0xad, |
| 2346 | 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } |
| 2347 | 0xdd, 0x0f, 0x00, 0x70, |
| 2348 | 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } |
| 2349 | }; |
| 2350 | |
| 2351 | template<> |
| 2352 | const unsigned char |
| 2353 | Output_data_plt_tilegx<64, true>::plt_entry[plt_entry_size] = |
| 2354 | { |
| 2355 | 0xdc, 0x0f, 0x00, 0x10, |
| 2356 | 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } |
| 2357 | 0xdb, 0x0f, 0x00, 0x10, |
| 2358 | 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } |
| 2359 | 0x9c, 0xc6, 0x0d, 0xd0, |
| 2360 | 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } |
| 2361 | 0x9b, 0xb6, 0xc5, 0xad, |
| 2362 | 0xff, 0x57, 0xe0, 0x8e, // { add r27, r26, r27 ; info 10 ; ld r28, r28 } |
| 2363 | 0xdd, 0x0f, 0x00, 0x70, |
| 2364 | 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } |
| 2365 | |
| 2366 | }; |
| 2367 | |
| 2368 | template<> |
| 2369 | const unsigned char |
| 2370 | Output_data_plt_tilegx<32, true>::plt_entry[plt_entry_size] = |
| 2371 | { |
| 2372 | 0xdc, 0x0f, 0x00, 0x10, |
| 2373 | 0x0d, 0xf0, 0x6a, 0x28, // { moveli r28, 0 ; lnk r26 } |
| 2374 | 0xdb, 0x0f, 0x00, 0x10, |
| 2375 | 0x8e, 0x03, 0x00, 0x38, // { moveli r27, 0 ; shl16insli r28, r28, 0 } |
| 2376 | 0x9c, 0xc6, 0x0d, 0xd0, |
| 2377 | 0x6d, 0x03, 0x00, 0x38, // { add r28, r26, r28 ; shl16insli r27, r27, 0 } |
| 2378 | 0x9b, 0xb6, 0xc5, 0xad, |
| 2379 | 0xff, 0x57, 0xe0, 0x8c, // { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } |
| 2380 | 0xdd, 0x0f, 0x00, 0x70, |
| 2381 | 0x80, 0x73, 0x6a, 0x28, // { shl16insli r29, zero, 0 ; jr r28 } |
| 2382 | }; |
| 2383 | |
| 2384 | template<int size, bool big_endian> |
| 2385 | void |
| 2386 | Output_data_plt_tilegx<size, big_endian>::fill_plt_entry( |
| 2387 | unsigned char* pov, |
| 2388 | typename elfcpp::Elf_types<size>::Elf_Addr gotplt_base, |
| 2389 | unsigned int got_offset, |
| 2390 | typename elfcpp::Elf_types<size>::Elf_Addr plt_base, |
| 2391 | unsigned int plt_offset, unsigned int plt_index) |
| 2392 | { |
| 2393 | |
| 2394 | const uint32_t TILEGX_IMM16_MASK = 0xFFFF; |
| 2395 | const uint32_t TILEGX_X0_IMM16_BITOFF = 12; |
| 2396 | const uint32_t TILEGX_X1_IMM16_BITOFF = 43; |
| 2397 | |
| 2398 | typedef typename elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::Valtype |
| 2399 | Valtype; |
| 2400 | memcpy(pov, plt_entry, plt_entry_size); |
| 2401 | |
| 2402 | // first bundle in plt stub - x0 |
| 2403 | Valtype* wv = reinterpret_cast<Valtype*>(pov); |
| 2404 | Valtype val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); |
| 2405 | Valtype reloc = |
| 2406 | ((gotplt_base + got_offset) - (plt_base + plt_offset + 8)) >> 16; |
| 2407 | elfcpp::Elf_Xword dst_mask = |
| 2408 | (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; |
| 2409 | val &= ~dst_mask; |
| 2410 | reloc &= TILEGX_IMM16_MASK; |
| 2411 | elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, |
| 2412 | val | (reloc<<TILEGX_X0_IMM16_BITOFF)); |
| 2413 | |
| 2414 | // second bundle in plt stub - x1 |
| 2415 | wv = reinterpret_cast<Valtype*>(pov + 8); |
| 2416 | val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); |
| 2417 | reloc = (gotplt_base + got_offset) - (plt_base + plt_offset + 8); |
| 2418 | dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF; |
| 2419 | val &= ~dst_mask; |
| 2420 | reloc &= TILEGX_IMM16_MASK; |
| 2421 | elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, |
| 2422 | val | (reloc<<TILEGX_X1_IMM16_BITOFF)); |
| 2423 | |
| 2424 | // second bundle in plt stub - x0 |
| 2425 | wv = reinterpret_cast<Valtype*>(pov + 8); |
| 2426 | val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); |
| 2427 | reloc = (gotplt_base - (plt_base + plt_offset + 8)) >> 16; |
| 2428 | dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; |
| 2429 | val &= ~dst_mask; |
| 2430 | reloc &= TILEGX_IMM16_MASK; |
| 2431 | elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, |
| 2432 | val | (reloc<<TILEGX_X0_IMM16_BITOFF)); |
| 2433 | |
| 2434 | // third bundle in plt stub - x1 |
| 2435 | wv = reinterpret_cast<Valtype*>(pov + 16); |
| 2436 | val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); |
| 2437 | reloc = gotplt_base - (plt_base + plt_offset + 8); |
| 2438 | dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X1_IMM16_BITOFF; |
| 2439 | val &= ~dst_mask; |
| 2440 | reloc &= TILEGX_IMM16_MASK; |
| 2441 | elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, |
| 2442 | val | (reloc<<TILEGX_X1_IMM16_BITOFF)); |
| 2443 | |
| 2444 | // fifth bundle in plt stub - carry plt_index x0 |
| 2445 | wv = reinterpret_cast<Valtype*>(pov + 32); |
| 2446 | val = elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::readval(wv); |
| 2447 | dst_mask = (elfcpp::Elf_Xword)(TILEGX_IMM16_MASK) << TILEGX_X0_IMM16_BITOFF; |
| 2448 | val &= ~dst_mask; |
| 2449 | plt_index &= TILEGX_IMM16_MASK; |
| 2450 | elfcpp::Swap<TILEGX_INST_BUNDLE_SIZE, big_endian>::writeval(wv, |
| 2451 | val | (plt_index<<TILEGX_X0_IMM16_BITOFF)); |
| 2452 | |
| 2453 | } |
| 2454 | |
| 2455 | // Write out the PLT. This uses the hand-coded instructions above. |
| 2456 | |
| 2457 | template<int size, bool big_endian> |
| 2458 | void |
| 2459 | Output_data_plt_tilegx<size, big_endian>::do_write(Output_file* of) |
| 2460 | { |
| 2461 | const off_t offset = this->offset(); |
| 2462 | const section_size_type oview_size = |
| 2463 | convert_to_section_size_type(this->data_size()); |
| 2464 | unsigned char* const oview = of->get_output_view(offset, oview_size); |
| 2465 | |
| 2466 | const off_t got_file_offset = this->got_plt_->offset(); |
| 2467 | gold_assert(parameters->incremental_update() |
| 2468 | || (got_file_offset + this->got_plt_->data_size() |
| 2469 | == this->got_irelative_->offset())); |
| 2470 | const section_size_type got_size = |
| 2471 | convert_to_section_size_type(this->got_plt_->data_size() |
| 2472 | + this->got_irelative_->data_size()); |
| 2473 | unsigned char* const got_view = of->get_output_view(got_file_offset, |
| 2474 | got_size); |
| 2475 | |
| 2476 | unsigned char* pov = oview; |
| 2477 | |
| 2478 | // The base address of the .plt section. |
| 2479 | typename elfcpp::Elf_types<size>::Elf_Addr plt_address = this->address(); |
| 2480 | typename elfcpp::Elf_types<size>::Elf_Addr got_address = |
| 2481 | this->got_plt_->address(); |
| 2482 | |
| 2483 | this->fill_first_plt_entry(pov); |
| 2484 | pov += this->get_plt_entry_size(); |
| 2485 | |
| 2486 | unsigned char* got_pov = got_view; |
| 2487 | |
| 2488 | // first entry of .got.plt are set to -1 |
| 2489 | // second entry of .got.plt are set to 0 |
| 2490 | memset(got_pov, 0xff, size / 8); |
| 2491 | got_pov += size / 8; |
| 2492 | memset(got_pov, 0x0, size / 8); |
| 2493 | got_pov += size / 8; |
| 2494 | |
| 2495 | unsigned int plt_offset = this->get_plt_entry_size(); |
| 2496 | const unsigned int count = this->count_ + this->irelative_count_; |
| 2497 | unsigned int got_offset = (size / 8) * TILEGX_GOTPLT_RESERVE_COUNT; |
| 2498 | for (unsigned int plt_index = 0; |
| 2499 | plt_index < count; |
| 2500 | ++plt_index, |
| 2501 | pov += this->get_plt_entry_size(), |
| 2502 | got_pov += size / 8, |
| 2503 | plt_offset += this->get_plt_entry_size(), |
| 2504 | got_offset += size / 8) |
| 2505 | { |
| 2506 | // Set and adjust the PLT entry itself. |
| 2507 | this->fill_plt_entry(pov, got_address, got_offset, |
| 2508 | plt_address, plt_offset, plt_index); |
| 2509 | |
| 2510 | // Initialize entry in .got.plt to plt start address |
| 2511 | elfcpp::Swap<size, big_endian>::writeval(got_pov, plt_address); |
| 2512 | } |
| 2513 | |
| 2514 | gold_assert(static_cast<section_size_type>(pov - oview) == oview_size); |
| 2515 | gold_assert(static_cast<section_size_type>(got_pov - got_view) == got_size); |
| 2516 | |
| 2517 | of->write_output_view(offset, oview_size, oview); |
| 2518 | of->write_output_view(got_file_offset, got_size, got_view); |
| 2519 | } |
| 2520 | |
| 2521 | // Create the PLT section. |
| 2522 | |
| 2523 | template<int size, bool big_endian> |
| 2524 | void |
| 2525 | Target_tilegx<size, big_endian>::make_plt_section(Symbol_table* symtab, |
| 2526 | Layout* layout) |
| 2527 | { |
| 2528 | if (this->plt_ == NULL) |
| 2529 | { |
| 2530 | // Create the GOT sections first. |
| 2531 | this->got_section(symtab, layout); |
| 2532 | |
| 2533 | // Ensure that .rela.dyn always appears before .rela.plt, |
| 2534 | // because on TILE-Gx, .rela.dyn needs to include .rela.plt |
| 2535 | // in it's range. |
| 2536 | this->rela_dyn_section(layout); |
| 2537 | |
| 2538 | this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout, |
| 2539 | TILEGX_INST_BUNDLE_SIZE, this->got_, this->got_plt_, |
| 2540 | this->got_irelative_); |
| 2541 | |
| 2542 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, |
| 2543 | (elfcpp::SHF_ALLOC |
| 2544 | | elfcpp::SHF_EXECINSTR), |
| 2545 | this->plt_, ORDER_NON_RELRO_FIRST, |
| 2546 | false); |
| 2547 | |
| 2548 | // Make the sh_info field of .rela.plt point to .plt. |
| 2549 | Output_section* rela_plt_os = this->plt_->rela_plt()->output_section(); |
| 2550 | rela_plt_os->set_info_section(this->plt_->output_section()); |
| 2551 | } |
| 2552 | } |
| 2553 | |
| 2554 | // Create a PLT entry for a global symbol. |
| 2555 | |
| 2556 | template<int size, bool big_endian> |
| 2557 | void |
| 2558 | Target_tilegx<size, big_endian>::make_plt_entry(Symbol_table* symtab, |
| 2559 | Layout* layout, Symbol* gsym) |
| 2560 | { |
| 2561 | if (gsym->has_plt_offset()) |
| 2562 | return; |
| 2563 | |
| 2564 | if (this->plt_ == NULL) |
| 2565 | this->make_plt_section(symtab, layout); |
| 2566 | |
| 2567 | this->plt_->add_entry(symtab, layout, gsym); |
| 2568 | } |
| 2569 | |
| 2570 | // Make a PLT entry for a local STT_GNU_IFUNC symbol. |
| 2571 | |
| 2572 | template<int size, bool big_endian> |
| 2573 | void |
| 2574 | Target_tilegx<size, big_endian>::make_local_ifunc_plt_entry( |
| 2575 | Symbol_table* symtab, Layout* layout, |
| 2576 | Sized_relobj_file<size, big_endian>* relobj, |
| 2577 | unsigned int local_sym_index) |
| 2578 | { |
| 2579 | if (relobj->local_has_plt_offset(local_sym_index)) |
| 2580 | return; |
| 2581 | if (this->plt_ == NULL) |
| 2582 | this->make_plt_section(symtab, layout); |
| 2583 | unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout, |
| 2584 | relobj, |
| 2585 | local_sym_index); |
| 2586 | relobj->set_local_plt_offset(local_sym_index, plt_offset); |
| 2587 | } |
| 2588 | |
| 2589 | // Return the number of entries in the PLT. |
| 2590 | |
| 2591 | template<int size, bool big_endian> |
| 2592 | unsigned int |
| 2593 | Target_tilegx<size, big_endian>::plt_entry_count() const |
| 2594 | { |
| 2595 | if (this->plt_ == NULL) |
| 2596 | return 0; |
| 2597 | return this->plt_->entry_count(); |
| 2598 | } |
| 2599 | |
| 2600 | // Return the offset of the first non-reserved PLT entry. |
| 2601 | |
| 2602 | template<int size, bool big_endian> |
| 2603 | unsigned int |
| 2604 | Target_tilegx<size, big_endian>::first_plt_entry_offset() const |
| 2605 | { |
| 2606 | return this->plt_->first_plt_entry_offset(); |
| 2607 | } |
| 2608 | |
| 2609 | // Return the size of each PLT entry. |
| 2610 | |
| 2611 | template<int size, bool big_endian> |
| 2612 | unsigned int |
| 2613 | Target_tilegx<size, big_endian>::plt_entry_size() const |
| 2614 | { |
| 2615 | return this->plt_->get_plt_entry_size(); |
| 2616 | } |
| 2617 | |
| 2618 | // Create the GOT and PLT sections for an incremental update. |
| 2619 | |
| 2620 | template<int size, bool big_endian> |
| 2621 | Output_data_got_base* |
| 2622 | Target_tilegx<size, big_endian>::init_got_plt_for_update(Symbol_table* symtab, |
| 2623 | Layout* layout, |
| 2624 | unsigned int got_count, |
| 2625 | unsigned int plt_count) |
| 2626 | { |
| 2627 | gold_assert(this->got_ == NULL); |
| 2628 | |
| 2629 | this->got_ = |
| 2630 | new Output_data_got<size, big_endian>((got_count |
| 2631 | + TILEGX_GOT_RESERVE_COUNT) |
| 2632 | * (size / 8)); |
| 2633 | layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS, |
| 2634 | (elfcpp::SHF_ALLOC |
| 2635 | | elfcpp::SHF_WRITE), |
| 2636 | this->got_, ORDER_RELRO_LAST, |
| 2637 | true); |
| 2638 | |
| 2639 | // Define _GLOBAL_OFFSET_TABLE_ at the start of the GOT. |
| 2640 | this->global_offset_table_ = |
| 2641 | symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL, |
| 2642 | Symbol_table::PREDEFINED, |
| 2643 | this->got_, |
| 2644 | 0, 0, elfcpp::STT_OBJECT, |
| 2645 | elfcpp::STB_LOCAL, |
| 2646 | elfcpp::STV_HIDDEN, 0, |
| 2647 | false, false); |
| 2648 | |
| 2649 | if (parameters->options().shared()) { |
| 2650 | this->tilegx_dynamic_ = |
| 2651 | symtab->define_in_output_data("_TILEGX_DYNAMIC_", NULL, |
| 2652 | Symbol_table::PREDEFINED, |
| 2653 | layout->dynamic_section(), |
| 2654 | 0, 0, elfcpp::STT_OBJECT, |
| 2655 | elfcpp::STB_LOCAL, |
| 2656 | elfcpp::STV_HIDDEN, 0, |
| 2657 | false, false); |
| 2658 | |
| 2659 | this->got_->add_global(this->tilegx_dynamic_, GOT_TYPE_STANDARD); |
| 2660 | } else |
| 2661 | this->got_->set_current_data_size(size / 8); |
| 2662 | |
| 2663 | // Add the two reserved entries. |
| 2664 | this->got_plt_ |
| 2665 | = new Output_data_space((plt_count + TILEGX_GOTPLT_RESERVE_COUNT) |
| 2666 | * (size / 8), size / 8, "** GOT PLT"); |
| 2667 | layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, |
| 2668 | (elfcpp::SHF_ALLOC |
| 2669 | | elfcpp::SHF_WRITE), |
| 2670 | this->got_plt_, ORDER_NON_RELRO_FIRST, |
| 2671 | false); |
| 2672 | |
| 2673 | // If there are any IRELATIVE relocations, they get GOT entries in |
| 2674 | // .got.plt after the jump slot. |
| 2675 | this->got_irelative_ |
| 2676 | = new Output_data_space(0, size / 8, "** GOT IRELATIVE PLT"); |
| 2677 | layout->add_output_section_data(".got.plt", elfcpp::SHT_PROGBITS, |
| 2678 | elfcpp::SHF_ALLOC | elfcpp::SHF_WRITE, |
| 2679 | this->got_irelative_, |
| 2680 | ORDER_NON_RELRO_FIRST, false); |
| 2681 | |
| 2682 | // Create the PLT section. |
| 2683 | this->plt_ = new Output_data_plt_tilegx<size, big_endian>(layout, |
| 2684 | this->plt_entry_size(), this->got_, this->got_plt_, this->got_irelative_, |
| 2685 | plt_count); |
| 2686 | |
| 2687 | layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS, |
| 2688 | elfcpp::SHF_ALLOC | elfcpp::SHF_EXECINSTR, |
| 2689 | this->plt_, ORDER_PLT, false); |
| 2690 | |
| 2691 | // Make the sh_info field of .rela.plt point to .plt. |
| 2692 | Output_section* rela_plt_os = this->plt_->rela_plt()->output_section(); |
| 2693 | rela_plt_os->set_info_section(this->plt_->output_section()); |
| 2694 | |
| 2695 | // Create the rela_dyn section. |
| 2696 | this->rela_dyn_section(layout); |
| 2697 | |
| 2698 | return this->got_; |
| 2699 | } |
| 2700 | |
| 2701 | // Reserve a GOT entry for a local symbol, and regenerate any |
| 2702 | // necessary dynamic relocations. |
| 2703 | |
| 2704 | template<int size, bool big_endian> |
| 2705 | void |
| 2706 | Target_tilegx<size, big_endian>::reserve_local_got_entry( |
| 2707 | unsigned int got_index, |
| 2708 | Sized_relobj<size, big_endian>* obj, |
| 2709 | unsigned int r_sym, |
| 2710 | unsigned int got_type) |
| 2711 | { |
| 2712 | unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT) |
| 2713 | * (size / 8); |
| 2714 | Reloc_section* rela_dyn = this->rela_dyn_section(NULL); |
| 2715 | |
| 2716 | this->got_->reserve_local(got_index, obj, r_sym, got_type); |
| 2717 | switch (got_type) |
| 2718 | { |
| 2719 | case GOT_TYPE_STANDARD: |
| 2720 | if (parameters->options().output_is_position_independent()) |
| 2721 | rela_dyn->add_local_relative(obj, r_sym, elfcpp::R_TILEGX_RELATIVE, |
| 2722 | this->got_, got_offset, 0, false); |
| 2723 | break; |
| 2724 | case GOT_TYPE_TLS_OFFSET: |
| 2725 | rela_dyn->add_local(obj, r_sym, |
| 2726 | size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32 |
| 2727 | : elfcpp::R_TILEGX_TLS_DTPOFF64, |
| 2728 | this->got_, got_offset, 0); |
| 2729 | break; |
| 2730 | case GOT_TYPE_TLS_PAIR: |
| 2731 | this->got_->reserve_slot(got_index + 1); |
| 2732 | rela_dyn->add_local(obj, r_sym, |
| 2733 | size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 |
| 2734 | : elfcpp::R_TILEGX_TLS_DTPMOD64, |
| 2735 | this->got_, got_offset, 0); |
| 2736 | break; |
| 2737 | case GOT_TYPE_TLS_DESC: |
| 2738 | gold_fatal(_("TLS_DESC not yet supported for incremental linking")); |
| 2739 | break; |
| 2740 | default: |
| 2741 | gold_unreachable(); |
| 2742 | } |
| 2743 | } |
| 2744 | |
| 2745 | // Reserve a GOT entry for a global symbol, and regenerate any |
| 2746 | // necessary dynamic relocations. |
| 2747 | |
| 2748 | template<int size, bool big_endian> |
| 2749 | void |
| 2750 | Target_tilegx<size, big_endian>::reserve_global_got_entry( |
| 2751 | unsigned int got_index, Symbol* gsym, unsigned int got_type) |
| 2752 | { |
| 2753 | unsigned int got_offset = (got_index + TILEGX_GOT_RESERVE_COUNT) |
| 2754 | * (size / 8); |
| 2755 | Reloc_section* rela_dyn = this->rela_dyn_section(NULL); |
| 2756 | |
| 2757 | this->got_->reserve_global(got_index, gsym, got_type); |
| 2758 | switch (got_type) |
| 2759 | { |
| 2760 | case GOT_TYPE_STANDARD: |
| 2761 | if (!gsym->final_value_is_known()) |
| 2762 | { |
| 2763 | if (gsym->is_from_dynobj() |
| 2764 | || gsym->is_undefined() |
| 2765 | || gsym->is_preemptible() |
| 2766 | || gsym->type() == elfcpp::STT_GNU_IFUNC) |
| 2767 | rela_dyn->add_global(gsym, elfcpp::R_TILEGX_GLOB_DAT, |
| 2768 | this->got_, got_offset, 0); |
| 2769 | else |
| 2770 | rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE, |
| 2771 | this->got_, got_offset, 0, false); |
| 2772 | } |
| 2773 | break; |
| 2774 | case GOT_TYPE_TLS_OFFSET: |
| 2775 | rela_dyn->add_global_relative(gsym, |
| 2776 | size == 32 ? elfcpp::R_TILEGX_TLS_TPOFF32 |
| 2777 | : elfcpp::R_TILEGX_TLS_TPOFF64, |
| 2778 | this->got_, got_offset, 0, false); |
| 2779 | break; |
| 2780 | case GOT_TYPE_TLS_PAIR: |
| 2781 | this->got_->reserve_slot(got_index + 1); |
| 2782 | rela_dyn->add_global_relative(gsym, |
| 2783 | size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 |
| 2784 | : elfcpp::R_TILEGX_TLS_DTPMOD64, |
| 2785 | this->got_, got_offset, 0, false); |
| 2786 | rela_dyn->add_global_relative(gsym, |
| 2787 | size == 32 ? elfcpp::R_TILEGX_TLS_DTPOFF32 |
| 2788 | : elfcpp::R_TILEGX_TLS_DTPOFF64, |
| 2789 | this->got_, got_offset + size / 8, |
| 2790 | 0, false); |
| 2791 | break; |
| 2792 | case GOT_TYPE_TLS_DESC: |
| 2793 | gold_fatal(_("TLS_DESC not yet supported for TILEGX")); |
| 2794 | break; |
| 2795 | default: |
| 2796 | gold_unreachable(); |
| 2797 | } |
| 2798 | } |
| 2799 | |
| 2800 | // Register an existing PLT entry for a global symbol. |
| 2801 | |
| 2802 | template<int size, bool big_endian> |
| 2803 | void |
| 2804 | Target_tilegx<size, big_endian>::register_global_plt_entry( |
| 2805 | Symbol_table* symtab, Layout* layout, unsigned int plt_index, Symbol* gsym) |
| 2806 | { |
| 2807 | gold_assert(this->plt_ != NULL); |
| 2808 | gold_assert(!gsym->has_plt_offset()); |
| 2809 | |
| 2810 | this->plt_->reserve_slot(plt_index); |
| 2811 | |
| 2812 | gsym->set_plt_offset((plt_index + 1) * this->plt_entry_size()); |
| 2813 | |
| 2814 | unsigned int got_offset = (plt_index + 2) * (size / 8); |
| 2815 | this->plt_->add_relocation(symtab, layout, gsym, got_offset); |
| 2816 | } |
| 2817 | |
| 2818 | // Force a COPY relocation for a given symbol. |
| 2819 | |
| 2820 | template<int size, bool big_endian> |
| 2821 | void |
| 2822 | Target_tilegx<size, big_endian>::emit_copy_reloc( |
| 2823 | Symbol_table* symtab, Symbol* sym, Output_section* os, off_t offset) |
| 2824 | { |
| 2825 | this->copy_relocs_.emit_copy_reloc(symtab, |
| 2826 | symtab->get_sized_symbol<size>(sym), |
| 2827 | os, |
| 2828 | offset, |
| 2829 | this->rela_dyn_section(NULL)); |
| 2830 | } |
| 2831 | |
| 2832 | // Create a GOT entry for the TLS module index. |
| 2833 | |
| 2834 | template<int size, bool big_endian> |
| 2835 | unsigned int |
| 2836 | Target_tilegx<size, big_endian>::got_mod_index_entry(Symbol_table* symtab, |
| 2837 | Layout* layout, |
| 2838 | Sized_relobj_file<size, big_endian>* object) |
| 2839 | { |
| 2840 | if (this->got_mod_index_offset_ == -1U) |
| 2841 | { |
| 2842 | gold_assert(symtab != NULL && layout != NULL && object != NULL); |
| 2843 | Reloc_section* rela_dyn = this->rela_dyn_section(layout); |
| 2844 | Output_data_got<size, big_endian>* got |
| 2845 | = this->got_section(symtab, layout); |
| 2846 | unsigned int got_offset = got->add_constant(0); |
| 2847 | rela_dyn->add_local(object, 0, |
| 2848 | size == 32 ? elfcpp::R_TILEGX_TLS_DTPMOD32 |
| 2849 | : elfcpp::R_TILEGX_TLS_DTPMOD64, got, |
| 2850 | got_offset, 0); |
| 2851 | got->add_constant(0); |
| 2852 | this->got_mod_index_offset_ = got_offset; |
| 2853 | } |
| 2854 | return this->got_mod_index_offset_; |
| 2855 | } |
| 2856 | |
| 2857 | // Optimize the TLS relocation type based on what we know about the |
| 2858 | // symbol. IS_FINAL is true if the final address of this symbol is |
| 2859 | // known at link time. |
| 2860 | // |
| 2861 | // the transformation rules is described below: |
| 2862 | // |
| 2863 | // compiler GD reference |
| 2864 | // | |
| 2865 | // V |
| 2866 | // moveli tmp, hw1_last_tls_gd(x) X0/X1 |
| 2867 | // shl16insli r0, tmp, hw0_tls_gd(x) X0/X1 |
| 2868 | // addi r0, got, tls_add(x) Y0/Y1/X0/X1 |
| 2869 | // jal tls_gd_call(x) X1 |
| 2870 | // addi adr, r0, tls_gd_add(x) Y0/Y1/X0/X1 |
| 2871 | // |
| 2872 | // linker tranformation of GD insn sequence |
| 2873 | // | |
| 2874 | // V |
| 2875 | // ==> GD: |
| 2876 | // moveli tmp, hw1_last_tls_gd(x) X0/X1 |
| 2877 | // shl16insli r0, tmp, hw0_tls_gd(x) X0/X1 |
| 2878 | // add r0, got, r0 Y0/Y1/X0/X1 |
| 2879 | // jal plt(__tls_get_addr) X1 |
| 2880 | // move adr, r0 Y0/Y1/X0/X1 |
| 2881 | // ==> IE: |
| 2882 | // moveli tmp, hw1_last_tls_ie(x) X0/X1 |
| 2883 | // shl16insli r0, tmp, hw0_tls_ie(x) X0/X1 |
| 2884 | // add r0, got, r0 Y0/Y1/X0/X1 |
| 2885 | // ld r0, r0 X1 |
| 2886 | // add adr, r0, tp Y0/Y1/X0/X1 |
| 2887 | // ==> LE: |
| 2888 | // moveli tmp, hw1_last_tls_le(x) X0/X1 |
| 2889 | // shl16insli r0, tmp, hw0_tls_le(x) X0/X1 |
| 2890 | // move r0, r0 Y0/Y1/X0/X1 |
| 2891 | // move r0, r0 Y0/Y1/X0/X1 |
| 2892 | // add adr, r0, tp Y0/Y1/X0/X1 |
| 2893 | // |
| 2894 | // |
| 2895 | // compiler IE reference |
| 2896 | // | |
| 2897 | // V |
| 2898 | // moveli tmp, hw1_last_tls_ie(x) X0/X1 |
| 2899 | // shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1 |
| 2900 | // addi tmp, got, tls_add(x) Y0/Y1/X0/X1 |
| 2901 | // ld_tls tmp, tmp, tls_ie_load(x) X1 |
| 2902 | // add adr, tmp, tp Y0/Y1/X0/X1 |
| 2903 | // |
| 2904 | // linker transformation for IE insn sequence |
| 2905 | // | |
| 2906 | // V |
| 2907 | // ==> IE: |
| 2908 | // moveli tmp, hw1_last_tls_ie(x) X0/X1 |
| 2909 | // shl16insli tmp, tmp, hw0_tls_ie(x) X0/X1 |
| 2910 | // add tmp, got, tmp Y0/Y1/X0/X1 |
| 2911 | // ld tmp, tmp X1 |
| 2912 | // add adr, tmp, tp Y0/Y1/X0/X1 |
| 2913 | // ==> LE: |
| 2914 | // moveli tmp, hw1_last_tls_le(x) X0/X1 |
| 2915 | // shl16insli tmp, tmp, hw0_tls_le(x) X0/X1 |
| 2916 | // move tmp, tmp Y0/Y1/X0/X1 |
| 2917 | // move tmp, tmp Y0/Y1/X0/X1 |
| 2918 | // |
| 2919 | // |
| 2920 | // compiler LE reference |
| 2921 | // | |
| 2922 | // V |
| 2923 | // moveli tmp, hw1_last_tls_le(x) X0/X1 |
| 2924 | // shl16insli tmp, tmp, hw0_tls_le(x) X0/X1 |
| 2925 | // add adr, tmp, tp Y0/Y1/X0/X1 |
| 2926 | |
| 2927 | template<int size, bool big_endian> |
| 2928 | tls::Tls_optimization |
| 2929 | Target_tilegx<size, big_endian>::optimize_tls_reloc(bool is_final, int r_type) |
| 2930 | { |
| 2931 | // If we are generating a shared library, then we can't do anything |
| 2932 | // in the linker. |
| 2933 | if (parameters->options().shared()) |
| 2934 | return tls::TLSOPT_NONE; |
| 2935 | |
| 2936 | switch (r_type) |
| 2937 | { |
| 2938 | // unique GD relocations |
| 2939 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 2940 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 2941 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 2942 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 2943 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 2944 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 2945 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 2946 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 2947 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 2948 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 2949 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 2950 | // These are General-Dynamic which permits fully general TLS |
| 2951 | // access. Since we know that we are generating an executable, |
| 2952 | // we can convert this to Initial-Exec. If we also know that |
| 2953 | // this is a local symbol, we can further switch to Local-Exec. |
| 2954 | if (is_final) |
| 2955 | return tls::TLSOPT_TO_LE; |
| 2956 | return tls::TLSOPT_TO_IE; |
| 2957 | |
| 2958 | // unique IE relocations |
| 2959 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 2960 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 2961 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 2962 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 2963 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 2964 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 2965 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 2966 | // These are Initial-Exec relocs which get the thread offset |
| 2967 | // from the GOT. If we know that we are linking against the |
| 2968 | // local symbol, we can switch to Local-Exec, which links the |
| 2969 | // thread offset into the instruction. |
| 2970 | if (is_final) |
| 2971 | return tls::TLSOPT_TO_LE; |
| 2972 | return tls::TLSOPT_NONE; |
| 2973 | |
| 2974 | // could be created for both GD and IE |
| 2975 | // but they are expanded into the same |
| 2976 | // instruction in GD and IE. |
| 2977 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 2978 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 2979 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 2980 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 2981 | if (is_final) |
| 2982 | return tls::TLSOPT_TO_LE; |
| 2983 | return tls::TLSOPT_NONE; |
| 2984 | |
| 2985 | // unique LE relocations |
| 2986 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 2987 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 2988 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 2989 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 2990 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 2991 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 2992 | // When we already have Local-Exec, there is nothing further we |
| 2993 | // can do. |
| 2994 | return tls::TLSOPT_NONE; |
| 2995 | |
| 2996 | default: |
| 2997 | gold_unreachable(); |
| 2998 | } |
| 2999 | } |
| 3000 | |
| 3001 | // Get the Reference_flags for a particular relocation. |
| 3002 | |
| 3003 | template<int size, bool big_endian> |
| 3004 | int |
| 3005 | Target_tilegx<size, big_endian>::Scan::get_reference_flags(unsigned int r_type) |
| 3006 | { |
| 3007 | switch (r_type) |
| 3008 | { |
| 3009 | case elfcpp::R_TILEGX_NONE: |
| 3010 | case elfcpp::R_TILEGX_GNU_VTINHERIT: |
| 3011 | case elfcpp::R_TILEGX_GNU_VTENTRY: |
| 3012 | // No symbol reference. |
| 3013 | return 0; |
| 3014 | |
| 3015 | case elfcpp::R_TILEGX_64: |
| 3016 | case elfcpp::R_TILEGX_32: |
| 3017 | case elfcpp::R_TILEGX_16: |
| 3018 | case elfcpp::R_TILEGX_8: |
| 3019 | return Symbol::ABSOLUTE_REF; |
| 3020 | |
| 3021 | case elfcpp::R_TILEGX_BROFF_X1: |
| 3022 | case elfcpp::R_TILEGX_64_PCREL: |
| 3023 | case elfcpp::R_TILEGX_32_PCREL: |
| 3024 | case elfcpp::R_TILEGX_16_PCREL: |
| 3025 | case elfcpp::R_TILEGX_8_PCREL: |
| 3026 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 3027 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 3028 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 3029 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 3030 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 3031 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 3032 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 3033 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 3034 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 3035 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 3036 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 3037 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 3038 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 3039 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 3040 | return Symbol::RELATIVE_REF; |
| 3041 | |
| 3042 | case elfcpp::R_TILEGX_JUMPOFF_X1: |
| 3043 | case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: |
| 3044 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
| 3045 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: |
| 3046 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: |
| 3047 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: |
| 3048 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: |
| 3049 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: |
| 3050 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: |
| 3051 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: |
| 3052 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: |
| 3053 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: |
| 3054 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: |
| 3055 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: |
| 3056 | return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF; |
| 3057 | |
| 3058 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 3059 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 3060 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 3061 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 3062 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 3063 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 3064 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 3065 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 3066 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 3067 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 3068 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 3069 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 3070 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 3071 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 3072 | return Symbol::ABSOLUTE_REF; |
| 3073 | |
| 3074 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 3075 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 3076 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 3077 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 3078 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 3079 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 3080 | // Absolute in GOT. |
| 3081 | return Symbol::ABSOLUTE_REF; |
| 3082 | |
| 3083 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 3084 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 3085 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 3086 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 3087 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 3088 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 3089 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 3090 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 3091 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 3092 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 3093 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 3094 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 3095 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 3096 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 3097 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 3098 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 3099 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 3100 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 3101 | case elfcpp::R_TILEGX_TLS_DTPOFF64: |
| 3102 | case elfcpp::R_TILEGX_TLS_DTPMOD32: |
| 3103 | case elfcpp::R_TILEGX_TLS_DTPOFF32: |
| 3104 | case elfcpp::R_TILEGX_TLS_TPOFF32: |
| 3105 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 3106 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 3107 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 3108 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 3109 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 3110 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 3111 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 3112 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 3113 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 3114 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 3115 | return Symbol::TLS_REF; |
| 3116 | |
| 3117 | case elfcpp::R_TILEGX_COPY: |
| 3118 | case elfcpp::R_TILEGX_GLOB_DAT: |
| 3119 | case elfcpp::R_TILEGX_JMP_SLOT: |
| 3120 | case elfcpp::R_TILEGX_RELATIVE: |
| 3121 | case elfcpp::R_TILEGX_TLS_TPOFF64: |
| 3122 | case elfcpp::R_TILEGX_TLS_DTPMOD64: |
| 3123 | default: |
| 3124 | // Not expected. We will give an error later. |
| 3125 | return 0; |
| 3126 | } |
| 3127 | } |
| 3128 | |
| 3129 | // Report an unsupported relocation against a local symbol. |
| 3130 | |
| 3131 | template<int size, bool big_endian> |
| 3132 | void |
| 3133 | Target_tilegx<size, big_endian>::Scan::unsupported_reloc_local( |
| 3134 | Sized_relobj_file<size, big_endian>* object, |
| 3135 | unsigned int r_type) |
| 3136 | { |
| 3137 | gold_error(_("%s: unsupported reloc %u against local symbol"), |
| 3138 | object->name().c_str(), r_type); |
| 3139 | } |
| 3140 | |
| 3141 | // We are about to emit a dynamic relocation of type R_TYPE. If the |
| 3142 | // dynamic linker does not support it, issue an error. |
| 3143 | template<int size, bool big_endian> |
| 3144 | void |
| 3145 | Target_tilegx<size, big_endian>::Scan::check_non_pic(Relobj* object, |
| 3146 | unsigned int r_type) |
| 3147 | { |
| 3148 | switch (r_type) |
| 3149 | { |
| 3150 | // These are the relocation types supported by glibc for tilegx |
| 3151 | // which should always work. |
| 3152 | case elfcpp::R_TILEGX_RELATIVE: |
| 3153 | case elfcpp::R_TILEGX_GLOB_DAT: |
| 3154 | case elfcpp::R_TILEGX_JMP_SLOT: |
| 3155 | case elfcpp::R_TILEGX_TLS_DTPMOD64: |
| 3156 | case elfcpp::R_TILEGX_TLS_DTPOFF64: |
| 3157 | case elfcpp::R_TILEGX_TLS_TPOFF64: |
| 3158 | case elfcpp::R_TILEGX_8: |
| 3159 | case elfcpp::R_TILEGX_16: |
| 3160 | case elfcpp::R_TILEGX_32: |
| 3161 | case elfcpp::R_TILEGX_64: |
| 3162 | case elfcpp::R_TILEGX_COPY: |
| 3163 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 3164 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 3165 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 3166 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 3167 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 3168 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 3169 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 3170 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 3171 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 3172 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 3173 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 3174 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 3175 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 3176 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 3177 | case elfcpp::R_TILEGX_BROFF_X1: |
| 3178 | case elfcpp::R_TILEGX_JUMPOFF_X1: |
| 3179 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 3180 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 3181 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 3182 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 3183 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 3184 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 3185 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 3186 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 3187 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 3188 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 3189 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 3190 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 3191 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 3192 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 3193 | return; |
| 3194 | |
| 3195 | default: |
| 3196 | // This prevents us from issuing more than one error per reloc |
| 3197 | // section. But we can still wind up issuing more than one |
| 3198 | // error per object file. |
| 3199 | if (this->issued_non_pic_error_) |
| 3200 | return; |
| 3201 | gold_assert(parameters->options().output_is_position_independent()); |
| 3202 | object->error(_("requires unsupported dynamic reloc %u; " |
| 3203 | "recompile with -fPIC"), |
| 3204 | r_type); |
| 3205 | this->issued_non_pic_error_ = true; |
| 3206 | return; |
| 3207 | |
| 3208 | case elfcpp::R_TILEGX_NONE: |
| 3209 | gold_unreachable(); |
| 3210 | } |
| 3211 | } |
| 3212 | |
| 3213 | // Return whether we need to make a PLT entry for a relocation of the |
| 3214 | // given type against a STT_GNU_IFUNC symbol. |
| 3215 | |
| 3216 | template<int size, bool big_endian> |
| 3217 | bool |
| 3218 | Target_tilegx<size, big_endian>::Scan::reloc_needs_plt_for_ifunc( |
| 3219 | Sized_relobj_file<size, big_endian>* object, unsigned int r_type) |
| 3220 | { |
| 3221 | int flags = Scan::get_reference_flags(r_type); |
| 3222 | if (flags & Symbol::TLS_REF) |
| 3223 | gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"), |
| 3224 | object->name().c_str(), r_type); |
| 3225 | return flags != 0; |
| 3226 | } |
| 3227 | |
| 3228 | // Scan a relocation for a local symbol. |
| 3229 | |
| 3230 | template<int size, bool big_endian> |
| 3231 | inline void |
| 3232 | Target_tilegx<size, big_endian>::Scan::local(Symbol_table* symtab, |
| 3233 | Layout* layout, |
| 3234 | Target_tilegx<size, big_endian>* target, |
| 3235 | Sized_relobj_file<size, big_endian>* object, |
| 3236 | unsigned int data_shndx, |
| 3237 | Output_section* output_section, |
| 3238 | const elfcpp::Rela<size, big_endian>& reloc, |
| 3239 | unsigned int r_type, |
| 3240 | const elfcpp::Sym<size, big_endian>& lsym, |
| 3241 | bool is_discarded) |
| 3242 | { |
| 3243 | if (is_discarded) |
| 3244 | return; |
| 3245 | |
| 3246 | // A local STT_GNU_IFUNC symbol may require a PLT entry. |
| 3247 | bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC; |
| 3248 | if (is_ifunc && this->reloc_needs_plt_for_ifunc(object, r_type)) |
| 3249 | { |
| 3250 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3251 | target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym); |
| 3252 | } |
| 3253 | |
| 3254 | switch (r_type) |
| 3255 | { |
| 3256 | case elfcpp::R_TILEGX_NONE: |
| 3257 | case elfcpp::R_TILEGX_GNU_VTINHERIT: |
| 3258 | case elfcpp::R_TILEGX_GNU_VTENTRY: |
| 3259 | break; |
| 3260 | |
| 3261 | // If building a shared library (or a position-independent |
| 3262 | // executable), because the runtime address needs plus |
| 3263 | // the module base address, so generate a R_TILEGX_RELATIVE. |
| 3264 | case elfcpp::R_TILEGX_32: |
| 3265 | case elfcpp::R_TILEGX_64: |
| 3266 | if (parameters->options().output_is_position_independent()) |
| 3267 | { |
| 3268 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3269 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3270 | rela_dyn->add_local_relative(object, r_sym, |
| 3271 | elfcpp::R_TILEGX_RELATIVE, |
| 3272 | output_section, data_shndx, |
| 3273 | reloc.get_r_offset(), |
| 3274 | reloc.get_r_addend(), is_ifunc); |
| 3275 | } |
| 3276 | break; |
| 3277 | |
| 3278 | // If building a shared library (or a position-independent |
| 3279 | // executable), we need to create a dynamic relocation for this |
| 3280 | // location. |
| 3281 | case elfcpp::R_TILEGX_8: |
| 3282 | case elfcpp::R_TILEGX_16: |
| 3283 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 3284 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 3285 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 3286 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 3287 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 3288 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 3289 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 3290 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 3291 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 3292 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 3293 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 3294 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 3295 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 3296 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 3297 | if (parameters->options().output_is_position_independent()) |
| 3298 | { |
| 3299 | this->check_non_pic(object, r_type); |
| 3300 | |
| 3301 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3302 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3303 | if (lsym.get_st_type() != elfcpp::STT_SECTION) |
| 3304 | rela_dyn->add_local(object, r_sym, r_type, output_section, |
| 3305 | data_shndx, reloc.get_r_offset(), |
| 3306 | reloc.get_r_addend()); |
| 3307 | else |
| 3308 | { |
| 3309 | gold_assert(lsym.get_st_value() == 0); |
| 3310 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, |
| 3311 | output_section, |
| 3312 | data_shndx, |
| 3313 | reloc.get_r_offset(), |
| 3314 | reloc.get_r_addend()); |
| 3315 | |
| 3316 | } |
| 3317 | } |
| 3318 | break; |
| 3319 | |
| 3320 | // R_TILEGX_JUMPOFF_X1_PLT against local symbol |
| 3321 | // may happen for ifunc case. |
| 3322 | case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: |
| 3323 | case elfcpp::R_TILEGX_JUMPOFF_X1: |
| 3324 | case elfcpp::R_TILEGX_64_PCREL: |
| 3325 | case elfcpp::R_TILEGX_32_PCREL: |
| 3326 | case elfcpp::R_TILEGX_16_PCREL: |
| 3327 | case elfcpp::R_TILEGX_8_PCREL: |
| 3328 | case elfcpp::R_TILEGX_BROFF_X1: |
| 3329 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 3330 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 3331 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 3332 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 3333 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 3334 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 3335 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 3336 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 3337 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 3338 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 3339 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 3340 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 3341 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 3342 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 3343 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
| 3344 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: |
| 3345 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: |
| 3346 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: |
| 3347 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: |
| 3348 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: |
| 3349 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: |
| 3350 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: |
| 3351 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: |
| 3352 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: |
| 3353 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: |
| 3354 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: |
| 3355 | break; |
| 3356 | |
| 3357 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 3358 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 3359 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 3360 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 3361 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 3362 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 3363 | { |
| 3364 | // The symbol requires a GOT entry. |
| 3365 | Output_data_got<size, big_endian>* got |
| 3366 | = target->got_section(symtab, layout); |
| 3367 | unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3368 | |
| 3369 | // For a STT_GNU_IFUNC symbol we want the PLT offset. That |
| 3370 | // lets function pointers compare correctly with shared |
| 3371 | // libraries. Otherwise we would need an IRELATIVE reloc. |
| 3372 | bool is_new; |
| 3373 | if (is_ifunc) |
| 3374 | is_new = got->add_local_plt(object, r_sym, GOT_TYPE_STANDARD); |
| 3375 | else |
| 3376 | is_new = got->add_local(object, r_sym, GOT_TYPE_STANDARD); |
| 3377 | if (is_new) |
| 3378 | { |
| 3379 | // tilegx dynamic linker will not update local got entry, |
| 3380 | // so, if we are generating a shared object, we need to add a |
| 3381 | // dynamic relocation for this symbol's GOT entry to inform |
| 3382 | // dynamic linker plus the load base explicitly. |
| 3383 | if (parameters->options().output_is_position_independent()) |
| 3384 | { |
| 3385 | unsigned int got_offset |
| 3386 | = object->local_got_offset(r_sym, GOT_TYPE_STANDARD); |
| 3387 | |
| 3388 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3389 | rela_dyn->add_local_relative(object, r_sym, |
| 3390 | r_type, |
| 3391 | got, got_offset, 0, is_ifunc); |
| 3392 | } |
| 3393 | } |
| 3394 | } |
| 3395 | break; |
| 3396 | |
| 3397 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 3398 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 3399 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 3400 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 3401 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 3402 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 3403 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 3404 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 3405 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 3406 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 3407 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 3408 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 3409 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 3410 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 3411 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 3412 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 3413 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 3414 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 3415 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 3416 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 3417 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 3418 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 3419 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 3420 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 3421 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 3422 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 3423 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 3424 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 3425 | { |
| 3426 | bool output_is_shared = parameters->options().shared(); |
| 3427 | const tls::Tls_optimization opt_t = |
| 3428 | Target_tilegx<size, big_endian>::optimize_tls_reloc( |
| 3429 | !output_is_shared, r_type); |
| 3430 | |
| 3431 | switch (r_type) |
| 3432 | { |
| 3433 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 3434 | // FIXME: predefine __tls_get_addr |
| 3435 | // |
| 3436 | // R_TILEGX_TLS_GD_CALL implicitly reference __tls_get_addr, |
| 3437 | // while all other target, x86/arm/mips/powerpc/sparc |
| 3438 | // generate tls relocation against __tls_get_addr explicitly, |
| 3439 | // so for TILEGX, we need the following hack. |
| 3440 | if (opt_t == tls::TLSOPT_NONE) { |
| 3441 | if (!target->tls_get_addr_sym_defined_) { |
| 3442 | Symbol* sym = NULL; |
| 3443 | options::parse_set(NULL, "__tls_get_addr", |
| 3444 | (gold::options::String_set*) |
| 3445 | ¶meters->options().undefined()); |
| 3446 | symtab->add_undefined_symbols_from_command_line(layout); |
| 3447 | target->tls_get_addr_sym_defined_ = true; |
| 3448 | sym = symtab->lookup("__tls_get_addr"); |
| 3449 | sym->set_in_reg(); |
| 3450 | } |
| 3451 | target->make_plt_entry(symtab, layout, |
| 3452 | symtab->lookup("__tls_get_addr")); |
| 3453 | } |
| 3454 | break; |
| 3455 | |
| 3456 | // only make effect when applying relocation |
| 3457 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 3458 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 3459 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 3460 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 3461 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 3462 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 3463 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 3464 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 3465 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 3466 | break; |
| 3467 | |
| 3468 | // GD: requires two GOT entry for module index and offset |
| 3469 | // IE: requires one GOT entry for tp-relative offset |
| 3470 | // LE: shouldn't happen for global symbol |
| 3471 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 3472 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 3473 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 3474 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 3475 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 3476 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 3477 | { |
| 3478 | if (opt_t == tls::TLSOPT_NONE) { |
| 3479 | Output_data_got<size, big_endian> *got |
| 3480 | = target->got_section(symtab, layout); |
| 3481 | unsigned int r_sym |
| 3482 | = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3483 | unsigned int shndx = lsym.get_st_shndx(); |
| 3484 | bool is_ordinary; |
| 3485 | shndx = object->adjust_sym_shndx(r_sym, shndx, |
| 3486 | &is_ordinary); |
| 3487 | if (!is_ordinary) |
| 3488 | object->error(_("local symbol %u has bad shndx %u"), |
| 3489 | r_sym, shndx); |
| 3490 | else |
| 3491 | got->add_local_pair_with_rel(object, r_sym, shndx, |
| 3492 | GOT_TYPE_TLS_PAIR, |
| 3493 | target->rela_dyn_section(layout), |
| 3494 | size == 32 |
| 3495 | ? elfcpp::R_TILEGX_TLS_DTPMOD32 |
| 3496 | : elfcpp::R_TILEGX_TLS_DTPMOD64); |
| 3497 | } else if (opt_t == tls::TLSOPT_TO_IE) { |
| 3498 | Output_data_got<size, big_endian>* got |
| 3499 | = target->got_section(symtab, layout); |
| 3500 | Reloc_section* rela_dyn |
| 3501 | = target->rela_dyn_section(layout); |
| 3502 | unsigned int r_sym |
| 3503 | = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3504 | unsigned int off = got->add_constant(0); |
| 3505 | object->set_local_got_offset(r_sym, |
| 3506 | GOT_TYPE_TLS_OFFSET,off); |
| 3507 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
| 3508 | size == 32 |
| 3509 | ? elfcpp::R_TILEGX_TLS_TPOFF32 |
| 3510 | : elfcpp::R_TILEGX_TLS_TPOFF64, |
| 3511 | got, off, 0); |
| 3512 | } else if (opt_t != tls::TLSOPT_TO_LE) |
| 3513 | // only TO_LE is allowed for local symbol |
| 3514 | unsupported_reloc_local(object, r_type); |
| 3515 | } |
| 3516 | break; |
| 3517 | |
| 3518 | // IE |
| 3519 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 3520 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 3521 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 3522 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 3523 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 3524 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 3525 | { |
| 3526 | layout->set_has_static_tls(); |
| 3527 | if (opt_t == tls::TLSOPT_NONE) { |
| 3528 | Output_data_got<size, big_endian>* got |
| 3529 | = target->got_section(symtab, layout); |
| 3530 | Reloc_section* rela_dyn |
| 3531 | = target->rela_dyn_section(layout); |
| 3532 | unsigned int r_sym |
| 3533 | = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3534 | unsigned int off = got->add_constant(0); |
| 3535 | object->set_local_got_offset(r_sym, |
| 3536 | GOT_TYPE_TLS_OFFSET, off); |
| 3537 | rela_dyn->add_symbolless_local_addend(object, r_sym, |
| 3538 | size == 32 |
| 3539 | ? elfcpp::R_TILEGX_TLS_TPOFF32 |
| 3540 | : elfcpp::R_TILEGX_TLS_TPOFF64, |
| 3541 | got, off, 0); |
| 3542 | } else if (opt_t != tls::TLSOPT_TO_LE) |
| 3543 | unsupported_reloc_local(object, r_type); |
| 3544 | } |
| 3545 | break; |
| 3546 | |
| 3547 | // LE |
| 3548 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 3549 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 3550 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 3551 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 3552 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 3553 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 3554 | layout->set_has_static_tls(); |
| 3555 | if (parameters->options().shared()) { |
| 3556 | // defer to dynamic linker |
| 3557 | gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION); |
| 3558 | unsigned int r_sym |
| 3559 | = elfcpp::elf_r_sym<size>(reloc.get_r_info()); |
| 3560 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3561 | rela_dyn->add_symbolless_local_addend(object, r_sym, r_type, |
| 3562 | output_section, data_shndx, |
| 3563 | reloc.get_r_offset(), 0); |
| 3564 | } |
| 3565 | break; |
| 3566 | |
| 3567 | default: |
| 3568 | gold_unreachable(); |
| 3569 | } |
| 3570 | } |
| 3571 | break; |
| 3572 | |
| 3573 | case elfcpp::R_TILEGX_COPY: |
| 3574 | case elfcpp::R_TILEGX_GLOB_DAT: |
| 3575 | case elfcpp::R_TILEGX_JMP_SLOT: |
| 3576 | case elfcpp::R_TILEGX_RELATIVE: |
| 3577 | // These are outstanding tls relocs, which are unexpected when linking |
| 3578 | case elfcpp::R_TILEGX_TLS_TPOFF32: |
| 3579 | case elfcpp::R_TILEGX_TLS_TPOFF64: |
| 3580 | case elfcpp::R_TILEGX_TLS_DTPMOD32: |
| 3581 | case elfcpp::R_TILEGX_TLS_DTPMOD64: |
| 3582 | case elfcpp::R_TILEGX_TLS_DTPOFF32: |
| 3583 | case elfcpp::R_TILEGX_TLS_DTPOFF64: |
| 3584 | gold_error(_("%s: unexpected reloc %u in object file"), |
| 3585 | object->name().c_str(), r_type); |
| 3586 | break; |
| 3587 | |
| 3588 | default: |
| 3589 | gold_error(_("%s: unsupported reloc %u against local symbol"), |
| 3590 | object->name().c_str(), r_type); |
| 3591 | break; |
| 3592 | } |
| 3593 | } |
| 3594 | |
| 3595 | |
| 3596 | // Report an unsupported relocation against a global symbol. |
| 3597 | |
| 3598 | template<int size, bool big_endian> |
| 3599 | void |
| 3600 | Target_tilegx<size, big_endian>::Scan::unsupported_reloc_global( |
| 3601 | Sized_relobj_file<size, big_endian>* object, |
| 3602 | unsigned int r_type, |
| 3603 | Symbol* gsym) |
| 3604 | { |
| 3605 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), |
| 3606 | object->name().c_str(), r_type, gsym->demangled_name().c_str()); |
| 3607 | } |
| 3608 | |
| 3609 | // Returns true if this relocation type could be that of a function pointer. |
| 3610 | template<int size, bool big_endian> |
| 3611 | inline bool |
| 3612 | Target_tilegx<size, big_endian>::Scan::possible_function_pointer_reloc( |
| 3613 | unsigned int r_type) |
| 3614 | { |
| 3615 | switch (r_type) |
| 3616 | { |
| 3617 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 3618 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 3619 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 3620 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 3621 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 3622 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 3623 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 3624 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 3625 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 3626 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 3627 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 3628 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 3629 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 3630 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 3631 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 3632 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 3633 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 3634 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 3635 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 3636 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 3637 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 3638 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 3639 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 3640 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 3641 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 3642 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 3643 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 3644 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 3645 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 3646 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 3647 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 3648 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 3649 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 3650 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 3651 | { |
| 3652 | return true; |
| 3653 | } |
| 3654 | } |
| 3655 | return false; |
| 3656 | } |
| 3657 | |
| 3658 | // For safe ICF, scan a relocation for a local symbol to check if it |
| 3659 | // corresponds to a function pointer being taken. In that case mark |
| 3660 | // the function whose pointer was taken as not foldable. |
| 3661 | |
| 3662 | template<int size, bool big_endian> |
| 3663 | inline bool |
| 3664 | Target_tilegx<size, big_endian>::Scan::local_reloc_may_be_function_pointer( |
| 3665 | Symbol_table* , |
| 3666 | Layout* , |
| 3667 | Target_tilegx<size, big_endian>* , |
| 3668 | Sized_relobj_file<size, big_endian>* , |
| 3669 | unsigned int , |
| 3670 | Output_section* , |
| 3671 | const elfcpp::Rela<size, big_endian>& , |
| 3672 | unsigned int r_type, |
| 3673 | const elfcpp::Sym<size, big_endian>&) |
| 3674 | { |
| 3675 | return possible_function_pointer_reloc(r_type); |
| 3676 | } |
| 3677 | |
| 3678 | // For safe ICF, scan a relocation for a global symbol to check if it |
| 3679 | // corresponds to a function pointer being taken. In that case mark |
| 3680 | // the function whose pointer was taken as not foldable. |
| 3681 | |
| 3682 | template<int size, bool big_endian> |
| 3683 | inline bool |
| 3684 | Target_tilegx<size, big_endian>::Scan::global_reloc_may_be_function_pointer( |
| 3685 | Symbol_table*, |
| 3686 | Layout* , |
| 3687 | Target_tilegx<size, big_endian>* , |
| 3688 | Sized_relobj_file<size, big_endian>* , |
| 3689 | unsigned int , |
| 3690 | Output_section* , |
| 3691 | const elfcpp::Rela<size, big_endian>& , |
| 3692 | unsigned int r_type, |
| 3693 | Symbol* gsym) |
| 3694 | { |
| 3695 | // GOT is not a function. |
| 3696 | if (strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) |
| 3697 | return false; |
| 3698 | |
| 3699 | // When building a shared library, do not fold symbols whose visibility |
| 3700 | // is hidden, internal or protected. |
| 3701 | return ((parameters->options().shared() |
| 3702 | && (gsym->visibility() == elfcpp::STV_INTERNAL |
| 3703 | || gsym->visibility() == elfcpp::STV_PROTECTED |
| 3704 | || gsym->visibility() == elfcpp::STV_HIDDEN)) |
| 3705 | || possible_function_pointer_reloc(r_type)); |
| 3706 | } |
| 3707 | |
| 3708 | // Scan a relocation for a global symbol. |
| 3709 | |
| 3710 | template<int size, bool big_endian> |
| 3711 | inline void |
| 3712 | Target_tilegx<size, big_endian>::Scan::global(Symbol_table* symtab, |
| 3713 | Layout* layout, |
| 3714 | Target_tilegx<size, big_endian>* target, |
| 3715 | Sized_relobj_file<size, big_endian>* object, |
| 3716 | unsigned int data_shndx, |
| 3717 | Output_section* output_section, |
| 3718 | const elfcpp::Rela<size, big_endian>& reloc, |
| 3719 | unsigned int r_type, |
| 3720 | Symbol* gsym) |
| 3721 | { |
| 3722 | // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got |
| 3723 | // section. We check here to avoid creating a dynamic reloc against |
| 3724 | // _GLOBAL_OFFSET_TABLE_. |
| 3725 | if (!target->has_got_section() |
| 3726 | && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0) |
| 3727 | target->got_section(symtab, layout); |
| 3728 | |
| 3729 | // A STT_GNU_IFUNC symbol may require a PLT entry. |
| 3730 | if (gsym->type() == elfcpp::STT_GNU_IFUNC |
| 3731 | && this->reloc_needs_plt_for_ifunc(object, r_type)) |
| 3732 | target->make_plt_entry(symtab, layout, gsym); |
| 3733 | |
| 3734 | switch (r_type) |
| 3735 | { |
| 3736 | case elfcpp::R_TILEGX_NONE: |
| 3737 | case elfcpp::R_TILEGX_GNU_VTINHERIT: |
| 3738 | case elfcpp::R_TILEGX_GNU_VTENTRY: |
| 3739 | break; |
| 3740 | |
| 3741 | case elfcpp::R_TILEGX_DEST_IMM8_X1: |
| 3742 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 3743 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 3744 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 3745 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 3746 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 3747 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 3748 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 3749 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 3750 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 3751 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 3752 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 3753 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 3754 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 3755 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 3756 | case elfcpp::R_TILEGX_64: |
| 3757 | case elfcpp::R_TILEGX_32: |
| 3758 | case elfcpp::R_TILEGX_16: |
| 3759 | case elfcpp::R_TILEGX_8: |
| 3760 | { |
| 3761 | // Make a PLT entry if necessary. |
| 3762 | if (gsym->needs_plt_entry()) |
| 3763 | { |
| 3764 | target->make_plt_entry(symtab, layout, gsym); |
| 3765 | // Since this is not a PC-relative relocation, we may be |
| 3766 | // taking the address of a function. In that case we need to |
| 3767 | // set the entry in the dynamic symbol table to the address of |
| 3768 | // the PLT entry. |
| 3769 | if (gsym->is_from_dynobj() && !parameters->options().shared()) |
| 3770 | gsym->set_needs_dynsym_value(); |
| 3771 | } |
| 3772 | // Make a dynamic relocation if necessary. |
| 3773 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
| 3774 | { |
| 3775 | if (!parameters->options().output_is_position_independent() |
| 3776 | && gsym->may_need_copy_reloc()) |
| 3777 | { |
| 3778 | target->copy_reloc(symtab, layout, object, |
| 3779 | data_shndx, output_section, gsym, reloc); |
| 3780 | } |
| 3781 | else if (((size == 64 && r_type == elfcpp::R_TILEGX_64) |
| 3782 | || (size == 32 && r_type == elfcpp::R_TILEGX_32)) |
| 3783 | && gsym->type() == elfcpp::STT_GNU_IFUNC |
| 3784 | && gsym->can_use_relative_reloc(false) |
| 3785 | && !gsym->is_from_dynobj() |
| 3786 | && !gsym->is_undefined() |
| 3787 | && !gsym->is_preemptible()) |
| 3788 | { |
| 3789 | // Use an IRELATIVE reloc for a locally defined |
| 3790 | // STT_GNU_IFUNC symbol. This makes a function |
| 3791 | // address in a PIE executable match the address in a |
| 3792 | // shared library that it links against. |
| 3793 | Reloc_section* rela_dyn = |
| 3794 | target->rela_irelative_section(layout); |
| 3795 | unsigned int r_type = elfcpp::R_TILEGX_IRELATIVE; |
| 3796 | rela_dyn->add_symbolless_global_addend(gsym, r_type, |
| 3797 | output_section, object, |
| 3798 | data_shndx, |
| 3799 | reloc.get_r_offset(), |
| 3800 | reloc.get_r_addend()); |
| 3801 | } else if ((r_type == elfcpp::R_TILEGX_64 |
| 3802 | || r_type == elfcpp::R_TILEGX_32) |
| 3803 | && gsym->can_use_relative_reloc(false)) |
| 3804 | { |
| 3805 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3806 | rela_dyn->add_global_relative(gsym, elfcpp::R_TILEGX_RELATIVE, |
| 3807 | output_section, object, |
| 3808 | data_shndx, |
| 3809 | reloc.get_r_offset(), |
| 3810 | reloc.get_r_addend(), false); |
| 3811 | } |
| 3812 | else |
| 3813 | { |
| 3814 | this->check_non_pic(object, r_type); |
| 3815 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3816 | rela_dyn->add_global(gsym, r_type, output_section, object, |
| 3817 | data_shndx, reloc.get_r_offset(), |
| 3818 | reloc.get_r_addend()); |
| 3819 | } |
| 3820 | } |
| 3821 | } |
| 3822 | break; |
| 3823 | |
| 3824 | case elfcpp::R_TILEGX_BROFF_X1: |
| 3825 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 3826 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 3827 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 3828 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 3829 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 3830 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 3831 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 3832 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 3833 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 3834 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 3835 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 3836 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 3837 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 3838 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 3839 | case elfcpp::R_TILEGX_64_PCREL: |
| 3840 | case elfcpp::R_TILEGX_32_PCREL: |
| 3841 | case elfcpp::R_TILEGX_16_PCREL: |
| 3842 | case elfcpp::R_TILEGX_8_PCREL: |
| 3843 | { |
| 3844 | // Make a PLT entry if necessary. |
| 3845 | if (gsym->needs_plt_entry()) |
| 3846 | target->make_plt_entry(symtab, layout, gsym); |
| 3847 | // Make a dynamic relocation if necessary. |
| 3848 | if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type))) |
| 3849 | { |
| 3850 | if (parameters->options().output_is_executable() |
| 3851 | && gsym->may_need_copy_reloc()) |
| 3852 | { |
| 3853 | target->copy_reloc(symtab, layout, object, |
| 3854 | data_shndx, output_section, gsym, reloc); |
| 3855 | } |
| 3856 | else |
| 3857 | { |
| 3858 | this->check_non_pic(object, r_type); |
| 3859 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3860 | rela_dyn->add_global(gsym, r_type, output_section, object, |
| 3861 | data_shndx, reloc.get_r_offset(), |
| 3862 | reloc.get_r_addend()); |
| 3863 | } |
| 3864 | } |
| 3865 | } |
| 3866 | break; |
| 3867 | |
| 3868 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 3869 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 3870 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 3871 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 3872 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 3873 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 3874 | { |
| 3875 | // The symbol requires a GOT entry. |
| 3876 | Output_data_got<size, big_endian>* got |
| 3877 | = target->got_section(symtab, layout); |
| 3878 | if (gsym->final_value_is_known()) |
| 3879 | { |
| 3880 | // For a STT_GNU_IFUNC symbol we want the PLT address. |
| 3881 | if (gsym->type() == elfcpp::STT_GNU_IFUNC) |
| 3882 | got->add_global_plt(gsym, GOT_TYPE_STANDARD); |
| 3883 | else |
| 3884 | got->add_global(gsym, GOT_TYPE_STANDARD); |
| 3885 | } |
| 3886 | else |
| 3887 | { |
| 3888 | // If this symbol is not fully resolved, we need to add a |
| 3889 | // dynamic relocation for it. |
| 3890 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 3891 | |
| 3892 | // Use a GLOB_DAT rather than a RELATIVE reloc if: |
| 3893 | // |
| 3894 | // 1) The symbol may be defined in some other module. |
| 3895 | // |
| 3896 | // 2) We are building a shared library and this is a |
| 3897 | // protected symbol; using GLOB_DAT means that the dynamic |
| 3898 | // linker can use the address of the PLT in the main |
| 3899 | // executable when appropriate so that function address |
| 3900 | // comparisons work. |
| 3901 | // |
| 3902 | // 3) This is a STT_GNU_IFUNC symbol in position dependent |
| 3903 | // code, again so that function address comparisons work. |
| 3904 | if (gsym->is_from_dynobj() |
| 3905 | || gsym->is_undefined() |
| 3906 | || gsym->is_preemptible() |
| 3907 | || (gsym->visibility() == elfcpp::STV_PROTECTED |
| 3908 | && parameters->options().shared()) |
| 3909 | || (gsym->type() == elfcpp::STT_GNU_IFUNC |
| 3910 | && parameters->options().output_is_position_independent())) |
| 3911 | got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn, |
| 3912 | elfcpp::R_TILEGX_GLOB_DAT); |
| 3913 | else |
| 3914 | { |
| 3915 | // For a STT_GNU_IFUNC symbol we want to write the PLT |
| 3916 | // offset into the GOT, so that function pointer |
| 3917 | // comparisons work correctly. |
| 3918 | bool is_new; |
| 3919 | if (gsym->type() != elfcpp::STT_GNU_IFUNC) |
| 3920 | is_new = got->add_global(gsym, GOT_TYPE_STANDARD); |
| 3921 | else |
| 3922 | { |
| 3923 | is_new = got->add_global_plt(gsym, GOT_TYPE_STANDARD); |
| 3924 | // Tell the dynamic linker to use the PLT address |
| 3925 | // when resolving relocations. |
| 3926 | if (gsym->is_from_dynobj() |
| 3927 | && !parameters->options().shared()) |
| 3928 | gsym->set_needs_dynsym_value(); |
| 3929 | } |
| 3930 | if (is_new) |
| 3931 | { |
| 3932 | unsigned int got_off = gsym->got_offset(GOT_TYPE_STANDARD); |
| 3933 | rela_dyn->add_global_relative(gsym, |
| 3934 | r_type, |
| 3935 | got, got_off, 0, false); |
| 3936 | } |
| 3937 | } |
| 3938 | } |
| 3939 | } |
| 3940 | break; |
| 3941 | |
| 3942 | // a minor difference here for R_TILEGX_JUMPOFF_X1 |
| 3943 | // between bfd linker and gold linker for gold, when |
| 3944 | // R_TILEGX_JUMPOFF_X1 against global symbol, we |
| 3945 | // turn it into JUMPOFF_X1_PLT, otherwise the distance |
| 3946 | // to the symbol function may overflow at runtime. |
| 3947 | case elfcpp::R_TILEGX_JUMPOFF_X1: |
| 3948 | |
| 3949 | case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: |
| 3950 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
| 3951 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: |
| 3952 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: |
| 3953 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: |
| 3954 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: |
| 3955 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: |
| 3956 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: |
| 3957 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: |
| 3958 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: |
| 3959 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: |
| 3960 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: |
| 3961 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: |
| 3962 | // If the symbol is fully resolved, this is just a PC32 reloc. |
| 3963 | // Otherwise we need a PLT entry. |
| 3964 | if (gsym->final_value_is_known()) |
| 3965 | break; |
| 3966 | // If building a shared library, we can also skip the PLT entry |
| 3967 | // if the symbol is defined in the output file and is protected |
| 3968 | // or hidden. |
| 3969 | if (gsym->is_defined() |
| 3970 | && !gsym->is_from_dynobj() |
| 3971 | && !gsym->is_preemptible()) |
| 3972 | break; |
| 3973 | target->make_plt_entry(symtab, layout, gsym); |
| 3974 | break; |
| 3975 | |
| 3976 | |
| 3977 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 3978 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 3979 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 3980 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 3981 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 3982 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 3983 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 3984 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 3985 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 3986 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 3987 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 3988 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 3989 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 3990 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 3991 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 3992 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 3993 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 3994 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 3995 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 3996 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 3997 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 3998 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 3999 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 4000 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 4001 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 4002 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 4003 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 4004 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 4005 | { |
| 4006 | const bool is_final = gsym->final_value_is_known(); |
| 4007 | const tls::Tls_optimization opt_t = |
| 4008 | Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final, |
| 4009 | r_type); |
| 4010 | |
| 4011 | switch (r_type) |
| 4012 | { |
| 4013 | // only expand to plt against __tls_get_addr in GD model |
| 4014 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 4015 | if (opt_t == tls::TLSOPT_NONE) { |
| 4016 | // FIXME: it's better '__tls_get_addr' referenced explictly |
| 4017 | if (!target->tls_get_addr_sym_defined_) { |
| 4018 | Symbol* sym = NULL; |
| 4019 | options::parse_set(NULL, "__tls_get_addr", |
| 4020 | (gold::options::String_set*) |
| 4021 | ¶meters->options().undefined()); |
| 4022 | symtab->add_undefined_symbols_from_command_line(layout); |
| 4023 | target->tls_get_addr_sym_defined_ = true; |
| 4024 | sym = symtab->lookup("__tls_get_addr"); |
| 4025 | sym->set_in_reg(); |
| 4026 | } |
| 4027 | target->make_plt_entry(symtab, layout, |
| 4028 | symtab->lookup("__tls_get_addr")); |
| 4029 | } |
| 4030 | break; |
| 4031 | |
| 4032 | // only make effect when applying relocation |
| 4033 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 4034 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 4035 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 4036 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 4037 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 4038 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 4039 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 4040 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 4041 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 4042 | break; |
| 4043 | |
| 4044 | // GD: requires two GOT entry for module index and offset |
| 4045 | // IE: requires one GOT entry for tp-relative offset |
| 4046 | // LE: shouldn't happen for global symbol |
| 4047 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 4048 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 4049 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 4050 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 4051 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 4052 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 4053 | { |
| 4054 | if (opt_t == tls::TLSOPT_NONE) { |
| 4055 | Output_data_got<size, big_endian>* got |
| 4056 | = target->got_section(symtab, layout); |
| 4057 | got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR, |
| 4058 | target->rela_dyn_section(layout), |
| 4059 | size == 32 |
| 4060 | ? elfcpp::R_TILEGX_TLS_DTPMOD32 |
| 4061 | : elfcpp::R_TILEGX_TLS_DTPMOD64, |
| 4062 | size == 32 |
| 4063 | ? elfcpp::R_TILEGX_TLS_DTPOFF32 |
| 4064 | : elfcpp::R_TILEGX_TLS_DTPOFF64); |
| 4065 | } else if (opt_t == tls::TLSOPT_TO_IE) { |
| 4066 | // Create a GOT entry for the tp-relative offset. |
| 4067 | Output_data_got<size, big_endian>* got |
| 4068 | = target->got_section(symtab, layout); |
| 4069 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
| 4070 | target->rela_dyn_section(layout), |
| 4071 | size == 32 |
| 4072 | ? elfcpp::R_TILEGX_TLS_TPOFF32 |
| 4073 | : elfcpp::R_TILEGX_TLS_TPOFF64); |
| 4074 | } else if (opt_t != tls::TLSOPT_TO_LE) |
| 4075 | // exteranl symbol should not be optimized to TO_LE |
| 4076 | unsupported_reloc_global(object, r_type, gsym); |
| 4077 | } |
| 4078 | break; |
| 4079 | |
| 4080 | // IE |
| 4081 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 4082 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 4083 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 4084 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 4085 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 4086 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 4087 | { |
| 4088 | layout->set_has_static_tls(); |
| 4089 | if (opt_t == tls::TLSOPT_NONE) { |
| 4090 | // Create a GOT entry for the tp-relative offset. |
| 4091 | Output_data_got<size, big_endian>* got |
| 4092 | = target->got_section(symtab, layout); |
| 4093 | got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET, |
| 4094 | target->rela_dyn_section(layout), |
| 4095 | size == 32 |
| 4096 | ? elfcpp::R_TILEGX_TLS_TPOFF32 |
| 4097 | : elfcpp::R_TILEGX_TLS_TPOFF64); |
| 4098 | } else if (opt_t != tls::TLSOPT_TO_LE) |
| 4099 | unsupported_reloc_global(object, r_type, gsym); |
| 4100 | } |
| 4101 | break; |
| 4102 | |
| 4103 | // LE |
| 4104 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 4105 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 4106 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 4107 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 4108 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 4109 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 4110 | layout->set_has_static_tls(); |
| 4111 | if (parameters->options().shared()) { |
| 4112 | // defer to dynamic linker |
| 4113 | Reloc_section* rela_dyn = target->rela_dyn_section(layout); |
| 4114 | rela_dyn->add_symbolless_global_addend(gsym, r_type, |
| 4115 | output_section, object, |
| 4116 | data_shndx, |
| 4117 | reloc.get_r_offset(), 0); |
| 4118 | } |
| 4119 | break; |
| 4120 | |
| 4121 | default: |
| 4122 | gold_unreachable(); |
| 4123 | } |
| 4124 | } |
| 4125 | break; |
| 4126 | |
| 4127 | // below are outstanding relocs |
| 4128 | // should not existed in static linking stage |
| 4129 | case elfcpp::R_TILEGX_COPY: |
| 4130 | case elfcpp::R_TILEGX_GLOB_DAT: |
| 4131 | case elfcpp::R_TILEGX_JMP_SLOT: |
| 4132 | case elfcpp::R_TILEGX_RELATIVE: |
| 4133 | case elfcpp::R_TILEGX_TLS_TPOFF32: |
| 4134 | case elfcpp::R_TILEGX_TLS_TPOFF64: |
| 4135 | case elfcpp::R_TILEGX_TLS_DTPMOD32: |
| 4136 | case elfcpp::R_TILEGX_TLS_DTPMOD64: |
| 4137 | case elfcpp::R_TILEGX_TLS_DTPOFF32: |
| 4138 | case elfcpp::R_TILEGX_TLS_DTPOFF64: |
| 4139 | gold_error(_("%s: unexpected reloc %u in object file"), |
| 4140 | object->name().c_str(), r_type); |
| 4141 | break; |
| 4142 | |
| 4143 | default: |
| 4144 | gold_error(_("%s: unsupported reloc %u against global symbol %s"), |
| 4145 | object->name().c_str(), r_type, |
| 4146 | gsym->demangled_name().c_str()); |
| 4147 | break; |
| 4148 | } |
| 4149 | } |
| 4150 | |
| 4151 | template<int size, bool big_endian> |
| 4152 | void |
| 4153 | Target_tilegx<size, big_endian>::gc_process_relocs(Symbol_table* symtab, |
| 4154 | Layout* layout, |
| 4155 | Sized_relobj_file<size, big_endian>* object, |
| 4156 | unsigned int data_shndx, |
| 4157 | unsigned int sh_type, |
| 4158 | const unsigned char* prelocs, |
| 4159 | size_t reloc_count, |
| 4160 | Output_section* output_section, |
| 4161 | bool needs_special_offset_handling, |
| 4162 | size_t local_symbol_count, |
| 4163 | const unsigned char* plocal_symbols) |
| 4164 | { |
| 4165 | typedef Target_tilegx<size, big_endian> Tilegx; |
| 4166 | typedef typename Target_tilegx<size, big_endian>::Scan Scan; |
| 4167 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4168 | Classify_reloc; |
| 4169 | |
| 4170 | if (sh_type == elfcpp::SHT_REL) |
| 4171 | { |
| 4172 | return; |
| 4173 | } |
| 4174 | |
| 4175 | gold::gc_process_relocs<size, big_endian, Tilegx, Scan, Classify_reloc>( |
| 4176 | symtab, |
| 4177 | layout, |
| 4178 | this, |
| 4179 | object, |
| 4180 | data_shndx, |
| 4181 | prelocs, |
| 4182 | reloc_count, |
| 4183 | output_section, |
| 4184 | needs_special_offset_handling, |
| 4185 | local_symbol_count, |
| 4186 | plocal_symbols); |
| 4187 | } |
| 4188 | // Scan relocations for a section. |
| 4189 | |
| 4190 | template<int size, bool big_endian> |
| 4191 | void |
| 4192 | Target_tilegx<size, big_endian>::scan_relocs(Symbol_table* symtab, |
| 4193 | Layout* layout, |
| 4194 | Sized_relobj_file<size, big_endian>* object, |
| 4195 | unsigned int data_shndx, |
| 4196 | unsigned int sh_type, |
| 4197 | const unsigned char* prelocs, |
| 4198 | size_t reloc_count, |
| 4199 | Output_section* output_section, |
| 4200 | bool needs_special_offset_handling, |
| 4201 | size_t local_symbol_count, |
| 4202 | const unsigned char* plocal_symbols) |
| 4203 | { |
| 4204 | typedef Target_tilegx<size, big_endian> Tilegx; |
| 4205 | typedef typename Target_tilegx<size, big_endian>::Scan Scan; |
| 4206 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4207 | Classify_reloc; |
| 4208 | |
| 4209 | if (sh_type == elfcpp::SHT_REL) |
| 4210 | { |
| 4211 | gold_error(_("%s: unsupported REL reloc section"), |
| 4212 | object->name().c_str()); |
| 4213 | return; |
| 4214 | } |
| 4215 | |
| 4216 | gold::scan_relocs<size, big_endian, Tilegx, Scan, Classify_reloc>( |
| 4217 | symtab, |
| 4218 | layout, |
| 4219 | this, |
| 4220 | object, |
| 4221 | data_shndx, |
| 4222 | prelocs, |
| 4223 | reloc_count, |
| 4224 | output_section, |
| 4225 | needs_special_offset_handling, |
| 4226 | local_symbol_count, |
| 4227 | plocal_symbols); |
| 4228 | } |
| 4229 | |
| 4230 | template<int size, bool big_endian> |
| 4231 | void |
| 4232 | Target_tilegx<size, big_endian>::do_define_standard_symbols( |
| 4233 | Symbol_table* symtab, |
| 4234 | Layout* layout) |
| 4235 | { |
| 4236 | Output_section* feedback_section = layout->find_output_section(".feedback"); |
| 4237 | |
| 4238 | if (feedback_section != NULL) |
| 4239 | { |
| 4240 | symtab->define_in_output_data("__feedback_section_end", |
| 4241 | NULL, |
| 4242 | Symbol_table::PREDEFINED, |
| 4243 | feedback_section, |
| 4244 | 0, |
| 4245 | 0, |
| 4246 | elfcpp::STT_NOTYPE, |
| 4247 | elfcpp::STB_GLOBAL, |
| 4248 | elfcpp::STV_HIDDEN, |
| 4249 | 0, |
| 4250 | true, // offset_is_from_end |
| 4251 | false); |
| 4252 | } |
| 4253 | } |
| 4254 | |
| 4255 | // Finalize the sections. |
| 4256 | |
| 4257 | template<int size, bool big_endian> |
| 4258 | void |
| 4259 | Target_tilegx<size, big_endian>::do_finalize_sections( |
| 4260 | Layout* layout, |
| 4261 | const Input_objects*, |
| 4262 | Symbol_table* symtab) |
| 4263 | { |
| 4264 | const Reloc_section* rel_plt = (this->plt_ == NULL |
| 4265 | ? NULL |
| 4266 | : this->plt_->rela_plt()); |
| 4267 | layout->add_target_dynamic_tags(false, this->got_plt_, rel_plt, |
| 4268 | this->rela_dyn_, true, true); |
| 4269 | |
| 4270 | // Emit any relocs we saved in an attempt to avoid generating COPY |
| 4271 | // relocs. |
| 4272 | if (this->copy_relocs_.any_saved_relocs()) |
| 4273 | this->copy_relocs_.emit(this->rela_dyn_section(layout)); |
| 4274 | |
| 4275 | // Set the size of the _GLOBAL_OFFSET_TABLE_ symbol to the size of |
| 4276 | // the .got section. |
| 4277 | Symbol* sym = this->global_offset_table_; |
| 4278 | if (sym != NULL) |
| 4279 | { |
| 4280 | uint64_t data_size = this->got_->current_data_size(); |
| 4281 | symtab->get_sized_symbol<size>(sym)->set_symsize(data_size); |
| 4282 | |
| 4283 | // If the .got section is more than 0x8000 bytes, we add |
| 4284 | // 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16 |
| 4285 | // bit relocations have a greater chance of working. |
| 4286 | if (data_size >= 0x8000) |
| 4287 | symtab->get_sized_symbol<size>(sym)->set_value( |
| 4288 | symtab->get_sized_symbol<size>(sym)->value() + 0x8000); |
| 4289 | } |
| 4290 | |
| 4291 | if (parameters->doing_static_link() |
| 4292 | && (this->plt_ == NULL || !this->plt_->has_irelative_section())) |
| 4293 | { |
| 4294 | // If linking statically, make sure that the __rela_iplt symbols |
| 4295 | // were defined if necessary, even if we didn't create a PLT. |
| 4296 | static const Define_symbol_in_segment syms[] = |
| 4297 | { |
| 4298 | { |
| 4299 | "__rela_iplt_start", // name |
| 4300 | elfcpp::PT_LOAD, // segment_type |
| 4301 | elfcpp::PF_W, // segment_flags_set |
| 4302 | elfcpp::PF(0), // segment_flags_clear |
| 4303 | 0, // value |
| 4304 | 0, // size |
| 4305 | elfcpp::STT_NOTYPE, // type |
| 4306 | elfcpp::STB_GLOBAL, // binding |
| 4307 | elfcpp::STV_HIDDEN, // visibility |
| 4308 | 0, // nonvis |
| 4309 | Symbol::SEGMENT_START, // offset_from_base |
| 4310 | true // only_if_ref |
| 4311 | }, |
| 4312 | { |
| 4313 | "__rela_iplt_end", // name |
| 4314 | elfcpp::PT_LOAD, // segment_type |
| 4315 | elfcpp::PF_W, // segment_flags_set |
| 4316 | elfcpp::PF(0), // segment_flags_clear |
| 4317 | 0, // value |
| 4318 | 0, // size |
| 4319 | elfcpp::STT_NOTYPE, // type |
| 4320 | elfcpp::STB_GLOBAL, // binding |
| 4321 | elfcpp::STV_HIDDEN, // visibility |
| 4322 | 0, // nonvis |
| 4323 | Symbol::SEGMENT_START, // offset_from_base |
| 4324 | true // only_if_ref |
| 4325 | } |
| 4326 | }; |
| 4327 | |
| 4328 | symtab->define_symbols(layout, 2, syms, |
| 4329 | layout->script_options()->saw_sections_clause()); |
| 4330 | } |
| 4331 | } |
| 4332 | |
| 4333 | // Perform a relocation. |
| 4334 | |
| 4335 | template<int size, bool big_endian> |
| 4336 | inline bool |
| 4337 | Target_tilegx<size, big_endian>::Relocate::relocate( |
| 4338 | const Relocate_info<size, big_endian>* relinfo, |
| 4339 | unsigned int, |
| 4340 | Target_tilegx<size, big_endian>* target, |
| 4341 | Output_section*, |
| 4342 | size_t relnum, |
| 4343 | const unsigned char* preloc, |
| 4344 | const Sized_symbol<size>* gsym, |
| 4345 | const Symbol_value<size>* psymval, |
| 4346 | unsigned char* view, |
| 4347 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 4348 | section_size_type) |
| 4349 | { |
| 4350 | if (view == NULL) |
| 4351 | return true; |
| 4352 | |
| 4353 | typedef Tilegx_relocate_functions<size, big_endian> TilegxReloc; |
| 4354 | typename TilegxReloc::Tilegx_howto r_howto; |
| 4355 | |
| 4356 | const elfcpp::Rela<size, big_endian> rela(preloc); |
| 4357 | unsigned int r_type = elfcpp::elf_r_type<size>(rela.get_r_info()); |
| 4358 | const Sized_relobj_file<size, big_endian>* object = relinfo->object; |
| 4359 | |
| 4360 | // Pick the value to use for symbols defined in the PLT. |
| 4361 | Symbol_value<size> symval; |
| 4362 | if (gsym != NULL |
| 4363 | && gsym->use_plt_offset(Scan::get_reference_flags(r_type))) |
| 4364 | { |
| 4365 | symval.set_output_value(target->plt_address_for_global(gsym)); |
| 4366 | psymval = &symval; |
| 4367 | } |
| 4368 | else if (gsym == NULL && psymval->is_ifunc_symbol()) |
| 4369 | { |
| 4370 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); |
| 4371 | if (object->local_has_plt_offset(r_sym)) |
| 4372 | { |
| 4373 | symval.set_output_value(target->plt_address_for_local(object, r_sym)); |
| 4374 | psymval = &symval; |
| 4375 | } |
| 4376 | } |
| 4377 | |
| 4378 | elfcpp::Elf_Xword addend = rela.get_r_addend(); |
| 4379 | |
| 4380 | // Get the GOT offset if needed. |
| 4381 | // For tilegx, the GOT pointer points to the start of the GOT section. |
| 4382 | bool have_got_offset = false; |
| 4383 | int got_offset = 0; |
| 4384 | int got_base = target->got_ != NULL |
| 4385 | ? target->got_->current_data_size() >= 0x8000 ? 0x8000 : 0 |
| 4386 | : 0; |
| 4387 | unsigned int got_type = GOT_TYPE_STANDARD; |
| 4388 | bool always_apply_relocation = false; |
| 4389 | switch (r_type) |
| 4390 | { |
| 4391 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 4392 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 4393 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 4394 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 4395 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 4396 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 4397 | if (gsym != NULL) |
| 4398 | { |
| 4399 | gold_assert(gsym->has_got_offset(got_type)); |
| 4400 | got_offset = gsym->got_offset(got_type) - got_base; |
| 4401 | } |
| 4402 | else |
| 4403 | { |
| 4404 | unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info()); |
| 4405 | gold_assert(object->local_has_got_offset(r_sym, got_type)); |
| 4406 | got_offset = |
| 4407 | object->local_got_offset(r_sym, got_type) - got_base; |
| 4408 | } |
| 4409 | have_got_offset = true; |
| 4410 | break; |
| 4411 | |
| 4412 | default: |
| 4413 | break; |
| 4414 | } |
| 4415 | |
| 4416 | r_howto = TilegxReloc::howto[r_type]; |
| 4417 | switch (r_type) |
| 4418 | { |
| 4419 | case elfcpp::R_TILEGX_NONE: |
| 4420 | case elfcpp::R_TILEGX_GNU_VTINHERIT: |
| 4421 | case elfcpp::R_TILEGX_GNU_VTENTRY: |
| 4422 | break; |
| 4423 | |
| 4424 | case elfcpp::R_TILEGX_IMM16_X0_HW0_GOT: |
| 4425 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
| 4426 | case elfcpp::R_TILEGX_IMM16_X1_HW0_GOT: |
| 4427 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_GOT: |
| 4428 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_GOT: |
| 4429 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_GOT: |
| 4430 | gold_assert(have_got_offset); |
| 4431 | symval.set_output_value(got_offset); |
| 4432 | psymval = &symval; |
| 4433 | always_apply_relocation = true; |
| 4434 | addend = 0; |
| 4435 | // Fall through. |
| 4436 | |
| 4437 | // when under PIC mode, these relocations are deferred to rtld |
| 4438 | case elfcpp::R_TILEGX_IMM16_X0_HW0: |
| 4439 | case elfcpp::R_TILEGX_IMM16_X1_HW0: |
| 4440 | case elfcpp::R_TILEGX_IMM16_X0_HW1: |
| 4441 | case elfcpp::R_TILEGX_IMM16_X1_HW1: |
| 4442 | case elfcpp::R_TILEGX_IMM16_X0_HW2: |
| 4443 | case elfcpp::R_TILEGX_IMM16_X1_HW2: |
| 4444 | case elfcpp::R_TILEGX_IMM16_X0_HW3: |
| 4445 | case elfcpp::R_TILEGX_IMM16_X1_HW3: |
| 4446 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST: |
| 4447 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST: |
| 4448 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST: |
| 4449 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST: |
| 4450 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST: |
| 4451 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST: |
| 4452 | if (always_apply_relocation |
| 4453 | || !parameters->options().output_is_position_independent()) |
| 4454 | TilegxReloc::imm_x_general(view, object, psymval, addend, r_howto); |
| 4455 | break; |
| 4456 | |
| 4457 | case elfcpp::R_TILEGX_JUMPOFF_X1: |
| 4458 | case elfcpp::R_TILEGX_JUMPOFF_X1_PLT: |
| 4459 | gold_assert(gsym == NULL |
| 4460 | || gsym->has_plt_offset() |
| 4461 | || gsym->final_value_is_known() |
| 4462 | || (gsym->is_defined() |
| 4463 | && !gsym->is_from_dynobj() |
| 4464 | && !gsym->is_preemptible())); |
| 4465 | TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend, |
| 4466 | address, r_howto); |
| 4467 | break; |
| 4468 | |
| 4469 | |
| 4470 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
| 4471 | case elfcpp::R_TILEGX_IMM16_X0_HW0_PCREL: |
| 4472 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PLT_PCREL: |
| 4473 | case elfcpp::R_TILEGX_IMM16_X1_HW0_PCREL: |
| 4474 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PLT_PCREL: |
| 4475 | case elfcpp::R_TILEGX_IMM16_X0_HW1_PCREL: |
| 4476 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PLT_PCREL: |
| 4477 | case elfcpp::R_TILEGX_IMM16_X1_HW1_PCREL: |
| 4478 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PLT_PCREL: |
| 4479 | case elfcpp::R_TILEGX_IMM16_X0_HW2_PCREL: |
| 4480 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PLT_PCREL: |
| 4481 | case elfcpp::R_TILEGX_IMM16_X1_HW2_PCREL: |
| 4482 | case elfcpp::R_TILEGX_IMM16_X0_HW3_PCREL: |
| 4483 | case elfcpp::R_TILEGX_IMM16_X1_HW3_PCREL: |
| 4484 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: |
| 4485 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_PCREL: |
| 4486 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: |
| 4487 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_PCREL: |
| 4488 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: |
| 4489 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_PCREL: |
| 4490 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: |
| 4491 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_PCREL: |
| 4492 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: |
| 4493 | case elfcpp::R_TILEGX_IMM16_X0_HW2_LAST_PCREL: |
| 4494 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: |
| 4495 | case elfcpp::R_TILEGX_IMM16_X1_HW2_LAST_PCREL: |
| 4496 | TilegxReloc::imm_x_pcrel_general(view, object, psymval, addend, |
| 4497 | address, r_howto); |
| 4498 | break; |
| 4499 | |
| 4500 | case elfcpp::R_TILEGX_BROFF_X1: |
| 4501 | case elfcpp::R_TILEGX_DEST_IMM8_X1: |
| 4502 | TilegxReloc::imm_x_two_part_general(view, object, psymval, |
| 4503 | addend, address, r_type); |
| 4504 | break; |
| 4505 | |
| 4506 | |
| 4507 | // below are general relocation types, which can be |
| 4508 | // handled by target-independent handlers |
| 4509 | case elfcpp::R_TILEGX_64: |
| 4510 | TilegxReloc::abs64(view, object, psymval, addend); |
| 4511 | break; |
| 4512 | |
| 4513 | case elfcpp::R_TILEGX_64_PCREL: |
| 4514 | TilegxReloc::pc_abs64(view, object, psymval, addend, address); |
| 4515 | break; |
| 4516 | |
| 4517 | case elfcpp::R_TILEGX_32: |
| 4518 | TilegxReloc::abs32(view, object, psymval, addend); |
| 4519 | break; |
| 4520 | |
| 4521 | case elfcpp::R_TILEGX_32_PCREL: |
| 4522 | TilegxReloc::pc_abs32(view, object, psymval, addend, address); |
| 4523 | break; |
| 4524 | |
| 4525 | case elfcpp::R_TILEGX_16: |
| 4526 | TilegxReloc::abs16(view, object, psymval, addend); |
| 4527 | break; |
| 4528 | |
| 4529 | case elfcpp::R_TILEGX_16_PCREL: |
| 4530 | TilegxReloc::pc_abs16(view, object, psymval, addend, address); |
| 4531 | break; |
| 4532 | |
| 4533 | case elfcpp::R_TILEGX_8: |
| 4534 | Relocate_functions<size, big_endian>::rela8(view, object, |
| 4535 | psymval, addend); |
| 4536 | break; |
| 4537 | |
| 4538 | case elfcpp::R_TILEGX_8_PCREL: |
| 4539 | Relocate_functions<size, big_endian>::pcrela8(view, object, |
| 4540 | psymval, addend, address); |
| 4541 | break; |
| 4542 | |
| 4543 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 4544 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 4545 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 4546 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 4547 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 4548 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 4549 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 4550 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 4551 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 4552 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 4553 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 4554 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 4555 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 4556 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 4557 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 4558 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 4559 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 4560 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 4561 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 4562 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 4563 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 4564 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 4565 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 4566 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 4567 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 4568 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 4569 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 4570 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 4571 | { |
| 4572 | const bool is_final = (gsym == NULL |
| 4573 | ? !parameters->options().shared() |
| 4574 | : gsym->final_value_is_known()); |
| 4575 | tls::Tls_optimization opt_t = |
| 4576 | Target_tilegx<size, big_endian>::optimize_tls_reloc(is_final, |
| 4577 | r_type); |
| 4578 | |
| 4579 | switch (r_type) |
| 4580 | { |
| 4581 | |
| 4582 | case elfcpp::R_TILEGX_TLS_GD_CALL: |
| 4583 | { |
| 4584 | if (opt_t == tls::TLSOPT_NONE) { |
| 4585 | Symbol *tls_sym = relinfo->symtab->lookup("__tls_get_addr"); |
| 4586 | symval.set_output_value( |
| 4587 | target->plt_address_for_global(tls_sym)); |
| 4588 | psymval = &symval; |
| 4589 | TilegxReloc::imm_x_pcrel_general(view, object, psymval, |
| 4590 | addend, address, r_howto); |
| 4591 | } |
| 4592 | else if (opt_t == tls::TLSOPT_TO_IE |
| 4593 | || opt_t == tls::TLSOPT_TO_LE) |
| 4594 | TilegxReloc::tls_relax(view, r_type, opt_t); |
| 4595 | } |
| 4596 | break; |
| 4597 | |
| 4598 | // XX_TLS_GD is the same as normal X_GOT relocation |
| 4599 | // except allocating a got entry pair, |
| 4600 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_GD: |
| 4601 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_GD: |
| 4602 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
| 4603 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: |
| 4604 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: |
| 4605 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: |
| 4606 | if (opt_t == tls::TLSOPT_NONE) { |
| 4607 | got_type = GOT_TYPE_TLS_PAIR; |
| 4608 | have_got_offset = true; |
| 4609 | } else if (opt_t == tls::TLSOPT_TO_IE) { |
| 4610 | got_type = GOT_TYPE_TLS_OFFSET; |
| 4611 | have_got_offset = true; |
| 4612 | } |
| 4613 | goto do_update_value; |
| 4614 | // XX_TLS_IE is the same as normal X_GOT relocation |
| 4615 | // except allocating one additional runtime relocation |
| 4616 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_IE: |
| 4617 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_IE: |
| 4618 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
| 4619 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: |
| 4620 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: |
| 4621 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: |
| 4622 | if (opt_t == tls::TLSOPT_NONE) { |
| 4623 | got_type = GOT_TYPE_TLS_OFFSET; |
| 4624 | have_got_offset = true; |
| 4625 | } |
| 4626 | // Fall through. |
| 4627 | do_update_value: |
| 4628 | if (have_got_offset) { |
| 4629 | if (gsym != NULL) { |
| 4630 | gold_assert(gsym->has_got_offset(got_type)); |
| 4631 | got_offset = gsym->got_offset(got_type) - got_base; |
| 4632 | } else { |
| 4633 | unsigned int r_sym |
| 4634 | = elfcpp::elf_r_sym<size>(rela.get_r_info()); |
| 4635 | gold_assert(object->local_has_got_offset(r_sym, got_type)); |
| 4636 | got_offset = |
| 4637 | object->local_got_offset(r_sym, got_type) - got_base; |
| 4638 | } |
| 4639 | } |
| 4640 | |
| 4641 | if (opt_t == tls::TLSOPT_NONE |
| 4642 | || opt_t == tls::TLSOPT_TO_IE) { |
| 4643 | // for both GD/IE, these relocations |
| 4644 | // actually calculate got offset, so |
| 4645 | // there behavior are the same |
| 4646 | gold_assert(have_got_offset); |
| 4647 | symval.set_output_value(got_offset); |
| 4648 | psymval = &symval; |
| 4649 | addend = 0; |
| 4650 | TilegxReloc::imm_x_general(view, object, psymval, |
| 4651 | addend, r_howto); |
| 4652 | break; |
| 4653 | } // else if (opt_t == tls::TLSOPT_TO_LE) |
| 4654 | // both GD/IE are turned into LE, which |
| 4655 | // is absolute relocation. |
| 4656 | // Fall through. |
| 4657 | |
| 4658 | // LE |
| 4659 | // |
| 4660 | // tp |
| 4661 | // | |
| 4662 | // V |
| 4663 | // t_var1 | t_var2 | t_var3 | ... |
| 4664 | // -------------------------------------------------- |
| 4665 | // |
| 4666 | // so offset to tp should be negative, we get offset |
| 4667 | // from the following formular for LE |
| 4668 | // |
| 4669 | // t_var1_off = t_var1_sym_value - tls_section_start |
| 4670 | // |
| 4671 | case elfcpp::R_TILEGX_IMM16_X0_HW0_TLS_LE: |
| 4672 | case elfcpp::R_TILEGX_IMM16_X1_HW0_TLS_LE: |
| 4673 | case elfcpp::R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: |
| 4674 | case elfcpp::R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: |
| 4675 | case elfcpp::R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: |
| 4676 | case elfcpp::R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: |
| 4677 | { |
| 4678 | Output_segment *tls_segment = relinfo->layout->tls_segment(); |
| 4679 | if (tls_segment == NULL) { |
| 4680 | gold_assert(parameters->errors()->error_count() > 0 |
| 4681 | || issue_undefined_symbol_error(gsym)); |
| 4682 | return false; |
| 4683 | } |
| 4684 | |
| 4685 | typename elfcpp::Elf_types<size>::Elf_Addr value |
| 4686 | = psymval->value(relinfo->object, 0); |
| 4687 | symval.set_output_value(value); |
| 4688 | psymval = &symval; |
| 4689 | TilegxReloc::imm_x_general(view, object, psymval, |
| 4690 | addend, r_howto); |
| 4691 | } |
| 4692 | break; |
| 4693 | |
| 4694 | // tls relaxation |
| 4695 | case elfcpp::R_TILEGX_TLS_IE_LOAD: |
| 4696 | case elfcpp::R_TILEGX_IMM8_X0_TLS_ADD: |
| 4697 | case elfcpp::R_TILEGX_IMM8_X1_TLS_ADD: |
| 4698 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_ADD: |
| 4699 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_ADD: |
| 4700 | case elfcpp::R_TILEGX_IMM8_X0_TLS_GD_ADD: |
| 4701 | case elfcpp::R_TILEGX_IMM8_X1_TLS_GD_ADD: |
| 4702 | case elfcpp::R_TILEGX_IMM8_Y0_TLS_GD_ADD: |
| 4703 | case elfcpp::R_TILEGX_IMM8_Y1_TLS_GD_ADD: |
| 4704 | TilegxReloc::tls_relax(view, r_type, opt_t); |
| 4705 | break; |
| 4706 | |
| 4707 | default: |
| 4708 | gold_unreachable(); |
| 4709 | } |
| 4710 | } |
| 4711 | break; |
| 4712 | |
| 4713 | // below are outstanding relocs |
| 4714 | // should not existed in static linking stage |
| 4715 | case elfcpp::R_TILEGX_COPY: |
| 4716 | case elfcpp::R_TILEGX_GLOB_DAT: |
| 4717 | case elfcpp::R_TILEGX_JMP_SLOT: |
| 4718 | case elfcpp::R_TILEGX_RELATIVE: |
| 4719 | case elfcpp::R_TILEGX_TLS_TPOFF32: |
| 4720 | case elfcpp::R_TILEGX_TLS_TPOFF64: |
| 4721 | case elfcpp::R_TILEGX_TLS_DTPMOD32: |
| 4722 | case elfcpp::R_TILEGX_TLS_DTPMOD64: |
| 4723 | case elfcpp::R_TILEGX_TLS_DTPOFF32: |
| 4724 | case elfcpp::R_TILEGX_TLS_DTPOFF64: |
| 4725 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
| 4726 | _("unexpected reloc %u in object file"), |
| 4727 | r_type); |
| 4728 | break; |
| 4729 | |
| 4730 | default: |
| 4731 | gold_error_at_location(relinfo, relnum, rela.get_r_offset(), |
| 4732 | _("unsupported reloc %u"), |
| 4733 | r_type); |
| 4734 | break; |
| 4735 | } |
| 4736 | |
| 4737 | return true; |
| 4738 | } |
| 4739 | |
| 4740 | // Relocate section data. |
| 4741 | |
| 4742 | template<int size, bool big_endian> |
| 4743 | void |
| 4744 | Target_tilegx<size, big_endian>::relocate_section( |
| 4745 | const Relocate_info<size, big_endian>* relinfo, |
| 4746 | unsigned int sh_type, |
| 4747 | const unsigned char* prelocs, |
| 4748 | size_t reloc_count, |
| 4749 | Output_section* output_section, |
| 4750 | bool needs_special_offset_handling, |
| 4751 | unsigned char* view, |
| 4752 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 4753 | section_size_type view_size, |
| 4754 | const Reloc_symbol_changes* reloc_symbol_changes) |
| 4755 | { |
| 4756 | typedef Target_tilegx<size, big_endian> Tilegx; |
| 4757 | typedef typename Target_tilegx<size, big_endian>::Relocate Tilegx_relocate; |
| 4758 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4759 | Classify_reloc; |
| 4760 | |
| 4761 | gold_assert(sh_type == elfcpp::SHT_RELA); |
| 4762 | |
| 4763 | gold::relocate_section<size, big_endian, Tilegx, Tilegx_relocate, |
| 4764 | gold::Default_comdat_behavior, Classify_reloc>( |
| 4765 | relinfo, |
| 4766 | this, |
| 4767 | prelocs, |
| 4768 | reloc_count, |
| 4769 | output_section, |
| 4770 | needs_special_offset_handling, |
| 4771 | view, |
| 4772 | address, |
| 4773 | view_size, |
| 4774 | reloc_symbol_changes); |
| 4775 | } |
| 4776 | |
| 4777 | // Apply an incremental relocation. Incremental relocations always refer |
| 4778 | // to global symbols. |
| 4779 | |
| 4780 | template<int size, bool big_endian> |
| 4781 | void |
| 4782 | Target_tilegx<size, big_endian>::apply_relocation( |
| 4783 | const Relocate_info<size, big_endian>* relinfo, |
| 4784 | typename elfcpp::Elf_types<size>::Elf_Addr r_offset, |
| 4785 | unsigned int r_type, |
| 4786 | typename elfcpp::Elf_types<size>::Elf_Swxword r_addend, |
| 4787 | const Symbol* gsym, |
| 4788 | unsigned char* view, |
| 4789 | typename elfcpp::Elf_types<size>::Elf_Addr address, |
| 4790 | section_size_type view_size) |
| 4791 | { |
| 4792 | gold::apply_relocation<size, big_endian, Target_tilegx<size, big_endian>, |
| 4793 | typename Target_tilegx<size, big_endian>::Relocate>( |
| 4794 | relinfo, |
| 4795 | this, |
| 4796 | r_offset, |
| 4797 | r_type, |
| 4798 | r_addend, |
| 4799 | gsym, |
| 4800 | view, |
| 4801 | address, |
| 4802 | view_size); |
| 4803 | } |
| 4804 | |
| 4805 | // Scan the relocs during a relocatable link. |
| 4806 | |
| 4807 | template<int size, bool big_endian> |
| 4808 | void |
| 4809 | Target_tilegx<size, big_endian>::scan_relocatable_relocs( |
| 4810 | Symbol_table* symtab, |
| 4811 | Layout* layout, |
| 4812 | Sized_relobj_file<size, big_endian>* object, |
| 4813 | unsigned int data_shndx, |
| 4814 | unsigned int sh_type, |
| 4815 | const unsigned char* prelocs, |
| 4816 | size_t reloc_count, |
| 4817 | Output_section* output_section, |
| 4818 | bool needs_special_offset_handling, |
| 4819 | size_t local_symbol_count, |
| 4820 | const unsigned char* plocal_symbols, |
| 4821 | Relocatable_relocs* rr) |
| 4822 | { |
| 4823 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4824 | Classify_reloc; |
| 4825 | typedef gold::Default_scan_relocatable_relocs<Classify_reloc> |
| 4826 | Scan_relocatable_relocs; |
| 4827 | |
| 4828 | gold_assert(sh_type == elfcpp::SHT_RELA); |
| 4829 | |
| 4830 | gold::scan_relocatable_relocs<size, big_endian, Scan_relocatable_relocs>( |
| 4831 | symtab, |
| 4832 | layout, |
| 4833 | object, |
| 4834 | data_shndx, |
| 4835 | prelocs, |
| 4836 | reloc_count, |
| 4837 | output_section, |
| 4838 | needs_special_offset_handling, |
| 4839 | local_symbol_count, |
| 4840 | plocal_symbols, |
| 4841 | rr); |
| 4842 | } |
| 4843 | |
| 4844 | // Scan the relocs for --emit-relocs. |
| 4845 | |
| 4846 | template<int size, bool big_endian> |
| 4847 | void |
| 4848 | Target_tilegx<size, big_endian>::emit_relocs_scan( |
| 4849 | Symbol_table* symtab, |
| 4850 | Layout* layout, |
| 4851 | Sized_relobj_file<size, big_endian>* object, |
| 4852 | unsigned int data_shndx, |
| 4853 | unsigned int sh_type, |
| 4854 | const unsigned char* prelocs, |
| 4855 | size_t reloc_count, |
| 4856 | Output_section* output_section, |
| 4857 | bool needs_special_offset_handling, |
| 4858 | size_t local_symbol_count, |
| 4859 | const unsigned char* plocal_syms, |
| 4860 | Relocatable_relocs* rr) |
| 4861 | { |
| 4862 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4863 | Classify_reloc; |
| 4864 | typedef gold::Default_emit_relocs_strategy<Classify_reloc> |
| 4865 | Emit_relocs_strategy; |
| 4866 | |
| 4867 | gold_assert(sh_type == elfcpp::SHT_RELA); |
| 4868 | |
| 4869 | gold::scan_relocatable_relocs<size, big_endian, Emit_relocs_strategy>( |
| 4870 | symtab, |
| 4871 | layout, |
| 4872 | object, |
| 4873 | data_shndx, |
| 4874 | prelocs, |
| 4875 | reloc_count, |
| 4876 | output_section, |
| 4877 | needs_special_offset_handling, |
| 4878 | local_symbol_count, |
| 4879 | plocal_syms, |
| 4880 | rr); |
| 4881 | } |
| 4882 | |
| 4883 | // Relocate a section during a relocatable link. |
| 4884 | |
| 4885 | template<int size, bool big_endian> |
| 4886 | void |
| 4887 | Target_tilegx<size, big_endian>::relocate_relocs( |
| 4888 | const Relocate_info<size, big_endian>* relinfo, |
| 4889 | unsigned int sh_type, |
| 4890 | const unsigned char* prelocs, |
| 4891 | size_t reloc_count, |
| 4892 | Output_section* output_section, |
| 4893 | typename elfcpp::Elf_types<size>::Elf_Off offset_in_output_section, |
| 4894 | unsigned char* view, |
| 4895 | typename elfcpp::Elf_types<size>::Elf_Addr view_address, |
| 4896 | section_size_type view_size, |
| 4897 | unsigned char* reloc_view, |
| 4898 | section_size_type reloc_view_size) |
| 4899 | { |
| 4900 | typedef gold::Default_classify_reloc<elfcpp::SHT_RELA, size, big_endian> |
| 4901 | Classify_reloc; |
| 4902 | |
| 4903 | gold_assert(sh_type == elfcpp::SHT_RELA); |
| 4904 | |
| 4905 | gold::relocate_relocs<size, big_endian, Classify_reloc>( |
| 4906 | relinfo, |
| 4907 | prelocs, |
| 4908 | reloc_count, |
| 4909 | output_section, |
| 4910 | offset_in_output_section, |
| 4911 | view, |
| 4912 | view_address, |
| 4913 | view_size, |
| 4914 | reloc_view, |
| 4915 | reloc_view_size); |
| 4916 | } |
| 4917 | |
| 4918 | // Return the value to use for a dynamic which requires special |
| 4919 | // treatment. This is how we support equality comparisons of function |
| 4920 | // pointers across shared library boundaries, as described in the |
| 4921 | // processor specific ABI supplement. |
| 4922 | |
| 4923 | template<int size, bool big_endian> |
| 4924 | uint64_t |
| 4925 | Target_tilegx<size, big_endian>::do_dynsym_value(const Symbol* gsym) const |
| 4926 | { |
| 4927 | gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset()); |
| 4928 | return this->plt_address_for_global(gsym); |
| 4929 | } |
| 4930 | |
| 4931 | // Return the value to use for the base of a DW_EH_PE_datarel offset |
| 4932 | // in an FDE. Solaris and SVR4 use DW_EH_PE_datarel because their |
| 4933 | // assembler can not write out the difference between two labels in |
| 4934 | // different sections, so instead of using a pc-relative value they |
| 4935 | // use an offset from the GOT. |
| 4936 | |
| 4937 | template<int size, bool big_endian> |
| 4938 | uint64_t |
| 4939 | Target_tilegx<size, big_endian>::do_ehframe_datarel_base() const |
| 4940 | { |
| 4941 | gold_assert(this->global_offset_table_ != NULL); |
| 4942 | Symbol* sym = this->global_offset_table_; |
| 4943 | Sized_symbol<size>* ssym = static_cast<Sized_symbol<size>*>(sym); |
| 4944 | return ssym->value(); |
| 4945 | } |
| 4946 | |
| 4947 | // The selector for tilegx object files. |
| 4948 | |
| 4949 | template<int size, bool big_endian> |
| 4950 | class Target_selector_tilegx : public Target_selector |
| 4951 | { |
| 4952 | public: |
| 4953 | Target_selector_tilegx() |
| 4954 | : Target_selector(elfcpp::EM_TILEGX, size, big_endian, |
| 4955 | (size == 64 |
| 4956 | ? (big_endian ? "elf64-tilegx-be" : "elf64-tilegx-le") |
| 4957 | : (big_endian ? "elf32-tilegx-be" |
| 4958 | : "elf32-tilegx-le")), |
| 4959 | (size == 64 |
| 4960 | ? (big_endian ? "elf64tilegx_be" : "elf64tilegx") |
| 4961 | : (big_endian ? "elf32tilegx_be" : "elf32tilegx"))) |
| 4962 | { } |
| 4963 | |
| 4964 | Target* |
| 4965 | do_instantiate_target() |
| 4966 | { return new Target_tilegx<size, big_endian>(); } |
| 4967 | |
| 4968 | }; |
| 4969 | |
| 4970 | Target_selector_tilegx<64, false> target_selector_tilegx64_le; |
| 4971 | Target_selector_tilegx<32, false> target_selector_tilegx32_le; |
| 4972 | Target_selector_tilegx<64, true> target_selector_tilegx64_be; |
| 4973 | Target_selector_tilegx<32, true> target_selector_tilegx32_be; |
| 4974 | } // End anonymous namespace. |