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Side by Side Diff: src/arm/simulator-arm.cc

Issue 2010243003: Move hashmap into base/. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 6 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include <stdarg.h> 5 #include <stdarg.h>
6 #include <stdlib.h> 6 #include <stdlib.h>
7 #include <cmath> 7 #include <cmath>
8 8
9 #if V8_TARGET_ARCH_ARM 9 #if V8_TARGET_ARCH_ARM
10 10
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627 return start_page == end_page; 627 return start_page == end_page;
628 } 628 }
629 629
630 630
631 void Simulator::set_last_debugger_input(char* input) { 631 void Simulator::set_last_debugger_input(char* input) {
632 DeleteArray(last_debugger_input_); 632 DeleteArray(last_debugger_input_);
633 last_debugger_input_ = input; 633 last_debugger_input_ = input;
634 } 634 }
635 635
636 636
637 void Simulator::FlushICache(v8::internal::HashMap* i_cache, 637 void Simulator::FlushICache(base::HashMap* i_cache,
638 void* start_addr, 638 void* start_addr,
639 size_t size) { 639 size_t size) {
640 intptr_t start = reinterpret_cast<intptr_t>(start_addr); 640 intptr_t start = reinterpret_cast<intptr_t>(start_addr);
641 int intra_line = (start & CachePage::kLineMask); 641 int intra_line = (start & CachePage::kLineMask);
642 start -= intra_line; 642 start -= intra_line;
643 size += intra_line; 643 size += intra_line;
644 size = ((size - 1) | CachePage::kLineMask) + 1; 644 size = ((size - 1) | CachePage::kLineMask) + 1;
645 int offset = (start & CachePage::kPageMask); 645 int offset = (start & CachePage::kPageMask);
646 while (!AllOnOnePage(start, size - 1)) { 646 while (!AllOnOnePage(start, size - 1)) {
647 int bytes_to_flush = CachePage::kPageSize - offset; 647 int bytes_to_flush = CachePage::kPageSize - offset;
648 FlushOnePage(i_cache, start, bytes_to_flush); 648 FlushOnePage(i_cache, start, bytes_to_flush);
649 start += bytes_to_flush; 649 start += bytes_to_flush;
650 size -= bytes_to_flush; 650 size -= bytes_to_flush;
651 DCHECK_EQ(0, start & CachePage::kPageMask); 651 DCHECK_EQ(0, start & CachePage::kPageMask);
652 offset = 0; 652 offset = 0;
653 } 653 }
654 if (size != 0) { 654 if (size != 0) {
655 FlushOnePage(i_cache, start, size); 655 FlushOnePage(i_cache, start, size);
656 } 656 }
657 } 657 }
658 658
659 659
660 CachePage* Simulator::GetCachePage(v8::internal::HashMap* i_cache, void* page) { 660 CachePage* Simulator::GetCachePage(base::HashMap* i_cache, void* page) {
661 v8::internal::HashMap::Entry* entry = 661 base::HashMap::Entry* entry = i_cache->LookupOrInsert(page, ICacheHash(page));
662 i_cache->LookupOrInsert(page, ICacheHash(page));
663 if (entry->value == NULL) { 662 if (entry->value == NULL) {
664 CachePage* new_page = new CachePage(); 663 CachePage* new_page = new CachePage();
665 entry->value = new_page; 664 entry->value = new_page;
666 } 665 }
667 return reinterpret_cast<CachePage*>(entry->value); 666 return reinterpret_cast<CachePage*>(entry->value);
668 } 667 }
669 668
670 669
671 // Flush from start up to and not including start + size. 670 // Flush from start up to and not including start + size.
672 void Simulator::FlushOnePage(v8::internal::HashMap* i_cache, 671 void Simulator::FlushOnePage(base::HashMap* i_cache,
673 intptr_t start, 672 intptr_t start,
674 int size) { 673 int size) {
675 DCHECK(size <= CachePage::kPageSize); 674 DCHECK(size <= CachePage::kPageSize);
676 DCHECK(AllOnOnePage(start, size - 1)); 675 DCHECK(AllOnOnePage(start, size - 1));
677 DCHECK((start & CachePage::kLineMask) == 0); 676 DCHECK((start & CachePage::kLineMask) == 0);
678 DCHECK((size & CachePage::kLineMask) == 0); 677 DCHECK((size & CachePage::kLineMask) == 0);
679 void* page = reinterpret_cast<void*>(start & (~CachePage::kPageMask)); 678 void* page = reinterpret_cast<void*>(start & (~CachePage::kPageMask));
680 int offset = (start & CachePage::kPageMask); 679 int offset = (start & CachePage::kPageMask);
681 CachePage* cache_page = GetCachePage(i_cache, page); 680 CachePage* cache_page = GetCachePage(i_cache, page);
682 char* valid_bytemap = cache_page->ValidityByte(offset); 681 char* valid_bytemap = cache_page->ValidityByte(offset);
683 memset(valid_bytemap, CachePage::LINE_INVALID, size >> CachePage::kLineShift); 682 memset(valid_bytemap, CachePage::LINE_INVALID, size >> CachePage::kLineShift);
684 } 683 }
685 684
686 685
687 void Simulator::CheckICache(v8::internal::HashMap* i_cache, 686 void Simulator::CheckICache(base::HashMap* i_cache,
688 Instruction* instr) { 687 Instruction* instr) {
689 intptr_t address = reinterpret_cast<intptr_t>(instr); 688 intptr_t address = reinterpret_cast<intptr_t>(instr);
690 void* page = reinterpret_cast<void*>(address & (~CachePage::kPageMask)); 689 void* page = reinterpret_cast<void*>(address & (~CachePage::kPageMask));
691 void* line = reinterpret_cast<void*>(address & (~CachePage::kLineMask)); 690 void* line = reinterpret_cast<void*>(address & (~CachePage::kLineMask));
692 int offset = (address & CachePage::kPageMask); 691 int offset = (address & CachePage::kPageMask);
693 CachePage* cache_page = GetCachePage(i_cache, page); 692 CachePage* cache_page = GetCachePage(i_cache, page);
694 char* cache_valid_byte = cache_page->ValidityByte(offset); 693 char* cache_valid_byte = cache_page->ValidityByte(offset);
695 bool cache_hit = (*cache_valid_byte == CachePage::LINE_VALID); 694 bool cache_hit = (*cache_valid_byte == CachePage::LINE_VALID);
696 char* cached_line = cache_page->CachedData(offset & ~CachePage::kLineMask); 695 char* cached_line = cache_page->CachedData(offset & ~CachePage::kLineMask);
697 if (cache_hit) { 696 if (cache_hit) {
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711 if (isolate->simulator_initialized()) return; 710 if (isolate->simulator_initialized()) return;
712 isolate->set_simulator_initialized(true); 711 isolate->set_simulator_initialized(true);
713 ::v8::internal::ExternalReference::set_redirector(isolate, 712 ::v8::internal::ExternalReference::set_redirector(isolate,
714 &RedirectExternalReference); 713 &RedirectExternalReference);
715 } 714 }
716 715
717 716
718 Simulator::Simulator(Isolate* isolate) : isolate_(isolate) { 717 Simulator::Simulator(Isolate* isolate) : isolate_(isolate) {
719 i_cache_ = isolate_->simulator_i_cache(); 718 i_cache_ = isolate_->simulator_i_cache();
720 if (i_cache_ == NULL) { 719 if (i_cache_ == NULL) {
721 i_cache_ = new v8::internal::HashMap(&ICacheMatch); 720 i_cache_ = new base::HashMap(&ICacheMatch);
722 isolate_->set_simulator_i_cache(i_cache_); 721 isolate_->set_simulator_i_cache(i_cache_);
723 } 722 }
724 Initialize(isolate); 723 Initialize(isolate);
725 // Set up simulator support first. Some of this information is needed to 724 // Set up simulator support first. Some of this information is needed to
726 // setup the architecture state. 725 // setup the architecture state.
727 size_t stack_size = 1 * 1024*1024; // allocate 1MB for stack 726 size_t stack_size = 1 * 1024*1024; // allocate 1MB for stack
728 stack_ = reinterpret_cast<char*>(malloc(stack_size)); 727 stack_ = reinterpret_cast<char*>(malloc(stack_size));
729 pc_modified_ = false; 728 pc_modified_ = false;
730 icount_ = 0; 729 icount_ = 0;
731 break_pc_ = NULL; 730 break_pc_ = NULL;
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843 842
844 private: 843 private:
845 void* external_function_; 844 void* external_function_;
846 uint32_t swi_instruction_; 845 uint32_t swi_instruction_;
847 ExternalReference::Type type_; 846 ExternalReference::Type type_;
848 Redirection* next_; 847 Redirection* next_;
849 }; 848 };
850 849
851 850
852 // static 851 // static
853 void Simulator::TearDown(HashMap* i_cache, Redirection* first) { 852 void Simulator::TearDown(base::HashMap* i_cache, Redirection* first) {
854 Redirection::DeleteChain(first); 853 Redirection::DeleteChain(first);
855 if (i_cache != nullptr) { 854 if (i_cache != nullptr) {
856 for (HashMap::Entry* entry = i_cache->Start(); entry != nullptr; 855 for (base::HashMap::Entry* entry = i_cache->Start(); entry != nullptr;
857 entry = i_cache->Next(entry)) { 856 entry = i_cache->Next(entry)) {
858 delete static_cast<CachePage*>(entry->value); 857 delete static_cast<CachePage*>(entry->value);
859 } 858 }
860 delete i_cache; 859 delete i_cache;
861 } 860 }
862 } 861 }
863 862
864 863
865 void* Simulator::RedirectExternalReference(Isolate* isolate, 864 void* Simulator::RedirectExternalReference(Isolate* isolate,
866 void* external_function, 865 void* external_function,
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4314 set_register(sp, current_sp + sizeof(uintptr_t)); 4313 set_register(sp, current_sp + sizeof(uintptr_t));
4315 return address; 4314 return address;
4316 } 4315 }
4317 4316
4318 } // namespace internal 4317 } // namespace internal
4319 } // namespace v8 4318 } // namespace v8
4320 4319
4321 #endif // USE_SIMULATOR 4320 #endif // USE_SIMULATOR
4322 4321
4323 #endif // V8_TARGET_ARCH_ARM 4322 #endif // V8_TARGET_ARCH_ARM
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