13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 26ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Redistribution and use in source and binary forms, with or without 36ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// modification, are permitted provided that the following conditions are 46ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// met: 56ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// 66ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// * Redistributions of source code must retain the above copyright 76ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// notice, this list of conditions and the following disclaimer. 86ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// * Redistributions in binary form must reproduce the above 96ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// copyright notice, this list of conditions and the following 106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// disclaimer in the documentation and/or other materials provided 116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// with the distribution. 126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// * Neither the name of Google Inc. nor the names of its 136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// contributors may be used to endorse or promote products derived 146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// from this software without specific prior written permission. 156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// 166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 206ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 236ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block#include "v8.h" 29257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 30257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch#include "profile-generator-inl.h" 31257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch 32f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke#include "global-handles.h" 3344f0eee88ff00398ff7f715fab053374d808c90dSteve Block#include "heap-profiler.h" 347f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch#include "scopeinfo.h" 350d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#include "unicode.h" 367f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch#include "zone-inl.h" 376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 386ded16be15dd865a9b21ea304d5273c8be299c87Steve Blocknamespace v8 { 396ded16be15dd865a9b21ea304d5273c8be299c87Steve Blocknamespace internal { 406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 42f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeTokenEnumerator::TokenEnumerator() 43f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke : token_locations_(4), 44f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke token_removed_(4) { 45f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 46f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 47f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 48f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeTokenEnumerator::~TokenEnumerator() { 4944f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 50f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke for (int i = 0; i < token_locations_.length(); ++i) { 51f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (!token_removed_[i]) { 5244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->ClearWeakness(token_locations_[i]); 5344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->Destroy(token_locations_[i]); 54f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 55f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 56f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 57f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 58f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 59f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkeint TokenEnumerator::GetTokenId(Object* token) { 6044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 617f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (token == NULL) return TokenEnumerator::kNoSecurityToken; 62f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke for (int i = 0; i < token_locations_.length(); ++i) { 63f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (*token_locations_[i] == token && !token_removed_[i]) return i; 64f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 6544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Handle<Object> handle = isolate->global_handles()->Create(token); 66f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // handle.location() points to a memory cell holding a pointer 67f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // to a token object in the V8's heap. 6844f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->MakeWeak(handle.location(), this, 6944f0eee88ff00398ff7f715fab053374d808c90dSteve Block TokenRemovedCallback); 70f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke token_locations_.Add(handle.location()); 71f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke token_removed_.Add(false); 72f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return token_locations_.length() - 1; 73f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 74f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 75f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 76f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkevoid TokenEnumerator::TokenRemovedCallback(v8::Persistent<v8::Value> handle, 77f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void* parameter) { 78f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke reinterpret_cast<TokenEnumerator*>(parameter)->TokenRemoved( 79f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke Utils::OpenHandle(*handle).location()); 8050ef84f5fad2def87d3fbc737bec4a32711fdef4Kristian Monsen handle.Dispose(); 81f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 82f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 83f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 84f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkevoid TokenEnumerator::TokenRemoved(Object** token_location) { 85f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke for (int i = 0; i < token_locations_.length(); ++i) { 86f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (token_locations_[i] == token_location && !token_removed_[i]) { 87f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke token_removed_[i] = true; 88f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return; 89f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 90f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 91f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 92f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 93f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 947f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochStringsStorage::StringsStorage() 957f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch : names_(StringsMatch) { 967f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 977f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 987f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 997f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochStringsStorage::~StringsStorage() { 1007f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch for (HashMap::Entry* p = names_.Start(); 1017f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch p != NULL; 1027f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch p = names_.Next(p)) { 1037f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch DeleteArray(reinterpret_cast<const char*>(p->value)); 1047f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 10544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 10644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 10744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 10844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* StringsStorage::GetCopy(const char* src) { 10944f0eee88ff00398ff7f715fab053374d808c90dSteve Block int len = static_cast<int>(strlen(src)); 11044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Vector<char> dst = Vector<char>::New(len + 1); 11144f0eee88ff00398ff7f715fab053374d808c90dSteve Block OS::StrNCpy(dst, src, len); 11244f0eee88ff00398ff7f715fab053374d808c90dSteve Block dst[len] = '\0'; 113c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch uint32_t hash = 114c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch HashSequentialString(dst.start(), len, HEAP->HashSeed()); 11544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return AddOrDisposeString(dst.start(), hash); 11644f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 11744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 11844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 11944f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* StringsStorage::GetFormatted(const char* format, ...) { 12044f0eee88ff00398ff7f715fab053374d808c90dSteve Block va_list args; 12144f0eee88ff00398ff7f715fab053374d808c90dSteve Block va_start(args, format); 12244f0eee88ff00398ff7f715fab053374d808c90dSteve Block const char* result = GetVFormatted(format, args); 12344f0eee88ff00398ff7f715fab053374d808c90dSteve Block va_end(args); 12444f0eee88ff00398ff7f715fab053374d808c90dSteve Block return result; 12544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 12644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 12744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 12844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* StringsStorage::AddOrDisposeString(char* str, uint32_t hash) { 12944f0eee88ff00398ff7f715fab053374d808c90dSteve Block HashMap::Entry* cache_entry = names_.Lookup(str, hash, true); 13044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (cache_entry->value == NULL) { 13144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // New entry added. 13244f0eee88ff00398ff7f715fab053374d808c90dSteve Block cache_entry->value = str; 13344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 13444f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeleteArray(str); 13544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 13644f0eee88ff00398ff7f715fab053374d808c90dSteve Block return reinterpret_cast<const char*>(cache_entry->value); 13744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 13844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 13944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 14044f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* StringsStorage::GetVFormatted(const char* format, va_list args) { 14144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Vector<char> str = Vector<char>::New(1024); 14244f0eee88ff00398ff7f715fab053374d808c90dSteve Block int len = OS::VSNPrintF(str, format, args); 14344f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (len == -1) { 14444f0eee88ff00398ff7f715fab053374d808c90dSteve Block DeleteArray(str.start()); 14544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return format; 14644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 147c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch uint32_t hash = HashSequentialString( 148c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch str.start(), len, HEAP->HashSeed()); 14944f0eee88ff00398ff7f715fab053374d808c90dSteve Block return AddOrDisposeString(str.start(), hash); 1507f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 1517f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1527f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1537f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochconst char* StringsStorage::GetName(String* name) { 1547f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (name->IsString()) { 1553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int length = Min(kMaxNameSize, name->length()); 1563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SmartArrayPointer<char> data = 1573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL, 0, length); 1583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t hash = 1593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HashSequentialString(*data, length, name->GetHeap()->HashSeed()); 1603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return AddOrDisposeString(data.Detach(), hash); 1617f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 1627f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch return ""; 1637f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 1647f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1657f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 166f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochconst char* StringsStorage::GetName(int index) { 16744f0eee88ff00398ff7f715fab053374d808c90dSteve Block return GetFormatted("%d", index); 168f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 169f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 170f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 17144f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* const CodeEntry::kEmptyNamePrefix = ""; 1726ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 1736ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 174f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkevoid CodeEntry::CopyData(const CodeEntry& source) { 175f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke tag_ = source.tag_; 176f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke name_prefix_ = source.name_prefix_; 177f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke name_ = source.name_; 178f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke resource_name_ = source.resource_name_; 179f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke line_number_ = source.line_number_; 180f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 181f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 182f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 1830d5e116f6aee03185f237311a943491bb079a768Kristian Monsenuint32_t CodeEntry::GetCallUid() const { 184c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch uint32_t hash = ComputeIntegerHash(tag_, v8::internal::kZeroHashSeed); 185e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (shared_id_ != 0) { 186c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch hash ^= ComputeIntegerHash(static_cast<uint32_t>(shared_id_), 187c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch v8::internal::kZeroHashSeed); 188e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 189e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch hash ^= ComputeIntegerHash( 190c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch static_cast<uint32_t>(reinterpret_cast<uintptr_t>(name_prefix_)), 191c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch v8::internal::kZeroHashSeed); 192e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch hash ^= ComputeIntegerHash( 193c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch static_cast<uint32_t>(reinterpret_cast<uintptr_t>(name_)), 194c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch v8::internal::kZeroHashSeed); 195e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch hash ^= ComputeIntegerHash( 196c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch static_cast<uint32_t>(reinterpret_cast<uintptr_t>(resource_name_)), 197c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch v8::internal::kZeroHashSeed); 198c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch hash ^= ComputeIntegerHash(line_number_, v8::internal::kZeroHashSeed); 199e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2000d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return hash; 2010d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 2020d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 2030d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 2040d5e116f6aee03185f237311a943491bb079a768Kristian Monsenbool CodeEntry::IsSameAs(CodeEntry* entry) const { 2050d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return this == entry 2060d5e116f6aee03185f237311a943491bb079a768Kristian Monsen || (tag_ == entry->tag_ 207e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && shared_id_ == entry->shared_id_ 208e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && (shared_id_ != 0 209e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch || (name_prefix_ == entry->name_prefix_ 210e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && name_ == entry->name_ 211e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && resource_name_ == entry->resource_name_ 212e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && line_number_ == entry->line_number_))); 2130d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 2140d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 2150d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 2166ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockProfileNode* ProfileNode::FindChild(CodeEntry* entry) { 2176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block HashMap::Entry* map_entry = 2186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block children_.Lookup(entry, CodeEntryHash(entry), false); 2196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return map_entry != NULL ? 2206ded16be15dd865a9b21ea304d5273c8be299c87Steve Block reinterpret_cast<ProfileNode*>(map_entry->value) : NULL; 2216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2236ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2246ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockProfileNode* ProfileNode::FindOrAddChild(CodeEntry* entry) { 2256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block HashMap::Entry* map_entry = 2266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block children_.Lookup(entry, CodeEntryHash(entry), true); 2276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (map_entry->value == NULL) { 2286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // New node added. 2296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ProfileNode* new_node = new ProfileNode(tree_, entry); 2306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block map_entry->value = new_node; 2316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block children_list_.Add(new_node); 2326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 2336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return reinterpret_cast<ProfileNode*>(map_entry->value); 2346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2356ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2376ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockdouble ProfileNode::GetSelfMillis() const { 2386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return tree_->TicksToMillis(self_ticks_); 2396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2426ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockdouble ProfileNode::GetTotalMillis() const { 2436ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return tree_->TicksToMillis(total_ticks_); 2446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2476ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileNode::Print(int indent) { 248f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke OS::Print("%5u %5u %*c %s%s [%d]", 2496ded16be15dd865a9b21ea304d5273c8be299c87Steve Block total_ticks_, self_ticks_, 2506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block indent, ' ', 2516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block entry_->name_prefix(), 252f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke entry_->name(), 253f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke entry_->security_token_id()); 2546ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (entry_->resource_name()[0] != '\0') 2556ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print(" %s:%d", entry_->resource_name(), entry_->line_number()); 2566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("\n"); 2576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (HashMap::Entry* p = children_.Start(); 2586ded16be15dd865a9b21ea304d5273c8be299c87Steve Block p != NULL; 2596ded16be15dd865a9b21ea304d5273c8be299c87Steve Block p = children_.Next(p)) { 2606ded16be15dd865a9b21ea304d5273c8be299c87Steve Block reinterpret_cast<ProfileNode*>(p->value)->Print(indent + 2); 2616ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 2626ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2646ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2656ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockclass DeleteNodesCallback { 2666ded16be15dd865a9b21ea304d5273c8be299c87Steve Block public: 267f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void BeforeTraversingChild(ProfileNode*, ProfileNode*) { } 268f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 2696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block void AfterAllChildrenTraversed(ProfileNode* node) { 2706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block delete node; 2716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 2726ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2736ded16be15dd865a9b21ea304d5273c8be299c87Steve Block void AfterChildTraversed(ProfileNode*, ProfileNode*) { } 2746ded16be15dd865a9b21ea304d5273c8be299c87Steve Block}; 2756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2766ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2776ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockProfileTree::ProfileTree() 278f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke : root_entry_(Logger::FUNCTION_TAG, 279f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke "", 280f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke "(root)", 281f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke "", 282f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 0, 2837f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch TokenEnumerator::kNoSecurityToken), 2846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block root_(new ProfileNode(this, &root_entry_)) { 2856ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2886ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockProfileTree::~ProfileTree() { 2896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block DeleteNodesCallback cb; 290f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke TraverseDepthFirst(&cb); 2916ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 2926ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2936ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 2946ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileTree::AddPathFromEnd(const Vector<CodeEntry*>& path) { 2956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ProfileNode* node = root_; 2966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (CodeEntry** entry = path.start() + path.length() - 1; 2976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block entry != path.start() - 1; 2986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block --entry) { 2996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (*entry != NULL) { 3006ded16be15dd865a9b21ea304d5273c8be299c87Steve Block node = node->FindOrAddChild(*entry); 3016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block node->IncrementSelfTicks(); 3046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 3056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3076ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileTree::AddPathFromStart(const Vector<CodeEntry*>& path) { 3086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ProfileNode* node = root_; 3096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (CodeEntry** entry = path.start(); 3106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block entry != path.start() + path.length(); 3116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ++entry) { 3126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (*entry != NULL) { 3136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block node = node->FindOrAddChild(*entry); 3146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block node->IncrementSelfTicks(); 3176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 3186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 320f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkestruct NodesPair { 321f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke NodesPair(ProfileNode* src, ProfileNode* dst) 322f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke : src(src), dst(dst) { } 323f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke ProfileNode* src; 324f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke ProfileNode* dst; 325f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke}; 326f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 327f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 328f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkeclass FilteredCloneCallback { 329f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke public: 33044f0eee88ff00398ff7f715fab053374d808c90dSteve Block FilteredCloneCallback(ProfileNode* dst_root, int security_token_id) 331f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke : stack_(10), 332f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke security_token_id_(security_token_id) { 333f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke stack_.Add(NodesPair(NULL, dst_root)); 334f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 335f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 336f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void BeforeTraversingChild(ProfileNode* parent, ProfileNode* child) { 337f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (IsTokenAcceptable(child->entry()->security_token_id(), 338f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke parent->entry()->security_token_id())) { 339f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke ProfileNode* clone = stack_.last().dst->FindOrAddChild(child->entry()); 340f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke clone->IncreaseSelfTicks(child->self_ticks()); 341f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke stack_.Add(NodesPair(child, clone)); 342f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } else { 343f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Attribute ticks to parent node. 344f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke stack_.last().dst->IncreaseSelfTicks(child->self_ticks()); 345f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 346f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 347f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 348f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void AfterAllChildrenTraversed(ProfileNode* parent) { } 349f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 350f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void AfterChildTraversed(ProfileNode*, ProfileNode* child) { 351f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (stack_.last().src == child) { 352f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke stack_.RemoveLast(); 353f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 354f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 355f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 356f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke private: 357f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke bool IsTokenAcceptable(int token, int parent_token) { 3587f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (token == TokenEnumerator::kNoSecurityToken 359f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke || token == security_token_id_) return true; 3607f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (token == TokenEnumerator::kInheritsSecurityToken) { 3617f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ASSERT(parent_token != TokenEnumerator::kInheritsSecurityToken); 3627f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch return parent_token == TokenEnumerator::kNoSecurityToken 363f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke || parent_token == security_token_id_; 364f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 365f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return false; 366f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 367f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 368f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<NodesPair> stack_; 369f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke int security_token_id_; 370f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke}; 371f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 372f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkevoid ProfileTree::FilteredClone(ProfileTree* src, int security_token_id) { 373f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke ms_to_ticks_scale_ = src->ms_to_ticks_scale_; 374f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke FilteredCloneCallback cb(root_, security_token_id); 375f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke src->TraverseDepthFirst(&cb); 376f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CalculateTotalTicks(); 377f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 378f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 379f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 3806ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileTree::SetTickRatePerMs(double ticks_per_ms) { 3816ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ms_to_ticks_scale_ = ticks_per_ms > 0 ? 1.0 / ticks_per_ms : 1.0; 3826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 3836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3856ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockclass Position { 3866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block public: 3876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block explicit Position(ProfileNode* node) 3886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block : node(node), child_idx_(0) { } 3896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block INLINE(ProfileNode* current_child()) { 3906ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return node->children()->at(child_idx_); 3916ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3926ded16be15dd865a9b21ea304d5273c8be299c87Steve Block INLINE(bool has_current_child()) { 3936ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return child_idx_ < node->children()->length(); 3946ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 3956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block INLINE(void next_child()) { ++child_idx_; } 3966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 3976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ProfileNode* node; 3986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block private: 3996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int child_idx_; 4006ded16be15dd865a9b21ea304d5273c8be299c87Steve Block}; 4016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block// Non-recursive implementation of a depth-first post-order tree traversal. 4046ded16be15dd865a9b21ea304d5273c8be299c87Steve Blocktemplate <typename Callback> 405f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkevoid ProfileTree::TraverseDepthFirst(Callback* callback) { 4066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block List<Position> stack(10); 4076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block stack.Add(Position(root_)); 408f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke while (stack.length() > 0) { 4096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block Position& current = stack.last(); 4106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (current.has_current_child()) { 411f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke callback->BeforeTraversingChild(current.node, current.current_child()); 4126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block stack.Add(Position(current.current_child())); 4136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } else { 4146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block callback->AfterAllChildrenTraversed(current.node); 4156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (stack.length() > 1) { 4166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block Position& parent = stack[stack.length() - 2]; 4176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block callback->AfterChildTraversed(parent.node, current.node); 4186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block parent.next_child(); 4196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 420f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Remove child from the stack. 421f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke stack.RemoveLast(); 4226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 423f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 4246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4276ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockclass CalculateTotalTicksCallback { 4286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block public: 429f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke void BeforeTraversingChild(ProfileNode*, ProfileNode*) { } 430f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 4316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block void AfterAllChildrenTraversed(ProfileNode* node) { 4326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block node->IncreaseTotalTicks(node->self_ticks()); 4336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 4346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4356ded16be15dd865a9b21ea304d5273c8be299c87Steve Block void AfterChildTraversed(ProfileNode* parent, ProfileNode* child) { 4366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block parent->IncreaseTotalTicks(child->total_ticks()); 4376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 4386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block}; 4396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4416ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileTree::CalculateTotalTicks() { 4426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CalculateTotalTicksCallback cb; 443f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke TraverseDepthFirst(&cb); 4446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4476ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileTree::ShortPrint() { 4486ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("root: %u %u %.2fms %.2fms\n", 4496ded16be15dd865a9b21ea304d5273c8be299c87Steve Block root_->total_ticks(), root_->self_ticks(), 4506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block root_->GetTotalMillis(), root_->GetSelfMillis()); 4516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4536ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4546ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfile::AddPath(const Vector<CodeEntry*>& path) { 4556ded16be15dd865a9b21ea304d5273c8be299c87Steve Block top_down_.AddPathFromEnd(path); 4566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bottom_up_.AddPathFromStart(path); 4576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4586ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4596ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4606ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfile::CalculateTotalTicks() { 4616ded16be15dd865a9b21ea304d5273c8be299c87Steve Block top_down_.CalculateTotalTicks(); 4626ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bottom_up_.CalculateTotalTicks(); 4636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4646ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4656ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4666ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfile::SetActualSamplingRate(double actual_sampling_rate) { 4676ded16be15dd865a9b21ea304d5273c8be299c87Steve Block top_down_.SetTickRatePerMs(actual_sampling_rate); 4686ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bottom_up_.SetTickRatePerMs(actual_sampling_rate); 4696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 472f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeCpuProfile* CpuProfile::FilteredClone(int security_token_id) { 4737f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ASSERT(security_token_id != TokenEnumerator::kNoSecurityToken); 474f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CpuProfile* clone = new CpuProfile(title_, uid_); 475f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke clone->top_down_.FilteredClone(&top_down_, security_token_id); 476f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke clone->bottom_up_.FilteredClone(&bottom_up_, security_token_id); 477f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return clone; 478f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 479f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 480f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 4816ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfile::ShortPrint() { 4826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("top down "); 4836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block top_down_.ShortPrint(); 4846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("bottom up "); 4856ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bottom_up_.ShortPrint(); 4866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4896ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfile::Print() { 4906ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("[Top down]:\n"); 4916ded16be15dd865a9b21ea304d5273c8be299c87Steve Block top_down_.Print(); 4926ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("[Bottom up]:\n"); 4936ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bottom_up_.Print(); 4946ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 4956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 4966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 49744f0eee88ff00398ff7f715fab053374d808c90dSteve BlockCodeEntry* const CodeMap::kSharedFunctionCodeEntry = NULL; 4986ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockconst CodeMap::CodeTreeConfig::Key CodeMap::CodeTreeConfig::kNoKey = NULL; 4996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5006ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 501589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdochvoid CodeMap::AddCode(Address addr, CodeEntry* entry, unsigned size) { 502589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch DeleteAllCoveredCode(addr, addr + size); 503589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch CodeTree::Locator locator; 504589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch tree_.Insert(addr, &locator); 505589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch locator.set_value(CodeEntryInfo(entry, size)); 506589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 507589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 508589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 509589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdochvoid CodeMap::DeleteAllCoveredCode(Address start, Address end) { 510589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch List<Address> to_delete; 511589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch Address addr = end - 1; 512589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch while (addr >= start) { 513589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch CodeTree::Locator locator; 514589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (!tree_.FindGreatestLessThan(addr, &locator)) break; 515589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch Address start2 = locator.key(), end2 = start2 + locator.value().size; 516589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (start2 < end && start < end2) to_delete.Add(start2); 517589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch addr = start2 - 1; 518589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch } 519589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch for (int i = 0; i < to_delete.length(); ++i) tree_.Remove(to_delete[i]); 520589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 521589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 522589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 5236ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCodeEntry* CodeMap::FindEntry(Address addr) { 5246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeTree::Locator locator; 5256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (tree_.FindGreatestLessThan(addr, &locator)) { 5266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // locator.key() <= addr. Need to check that addr is within entry. 5276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const CodeEntryInfo& entry = locator.value(); 5286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (addr < (locator.key() + entry.size)) 5296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return entry.entry; 5306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 5316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return NULL; 5326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 53544f0eee88ff00398ff7f715fab053374d808c90dSteve Blockint CodeMap::GetSharedId(Address addr) { 536e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch CodeTree::Locator locator; 53744f0eee88ff00398ff7f715fab053374d808c90dSteve Block // For shared function entries, 'size' field is used to store their IDs. 538e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (tree_.Find(addr, &locator)) { 539e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const CodeEntryInfo& entry = locator.value(); 54044f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(entry.entry == kSharedFunctionCodeEntry); 541e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return entry.size; 542e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else { 543e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch tree_.Insert(addr, &locator); 54444f0eee88ff00398ff7f715fab053374d808c90dSteve Block int id = next_shared_id_++; 54544f0eee88ff00398ff7f715fab053374d808c90dSteve Block locator.set_value(CodeEntryInfo(kSharedFunctionCodeEntry, id)); 54644f0eee88ff00398ff7f715fab053374d808c90dSteve Block return id; 547e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 548e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 549e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 550e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 551589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdochvoid CodeMap::MoveCode(Address from, Address to) { 552589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (from == to) return; 553589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch CodeTree::Locator locator; 554589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch if (!tree_.Find(from, &locator)) return; 555589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch CodeEntryInfo entry = locator.value(); 556589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch tree_.Remove(from); 557589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch AddCode(to, entry.entry, entry.size); 558589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch} 559589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 560589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch 5616ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CodeMap::CodeTreePrinter::Call( 5626ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const Address& key, const CodeMap::CodeEntryInfo& value) { 5636ded16be15dd865a9b21ea304d5273c8be299c87Steve Block OS::Print("%p %5d %s\n", key, value.size, value.entry->name()); 5646ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5656ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5666ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5676ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CodeMap::Print() { 5686ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeTreePrinter printer; 5696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block tree_.ForEach(&printer); 5706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5726ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5736ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCpuProfilesCollection::CpuProfilesCollection() 5747f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch : profiles_uids_(UidsMatch), 5756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_(OS::CreateSemaphore(1)) { 576f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Create list of unabridged profiles. 577f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke profiles_by_token_.Add(new List<CpuProfile*>()); 5786ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5796ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5806ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5816ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockstatic void DeleteCodeEntry(CodeEntry** entry_ptr) { 5826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block delete *entry_ptr; 5836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5856ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockstatic void DeleteCpuProfile(CpuProfile** profile_ptr) { 5866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block delete *profile_ptr; 5876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 5886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 589f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkestatic void DeleteProfilesList(List<CpuProfile*>** list_ptr) { 59044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (*list_ptr != NULL) { 59144f0eee88ff00398ff7f715fab053374d808c90dSteve Block (*list_ptr)->Iterate(DeleteCpuProfile); 59244f0eee88ff00398ff7f715fab053374d808c90dSteve Block delete *list_ptr; 59344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 594f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 5956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 5966ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCpuProfilesCollection::~CpuProfilesCollection() { 5976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block delete current_profiles_semaphore_; 5986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_.Iterate(DeleteCpuProfile); 59944f0eee88ff00398ff7f715fab053374d808c90dSteve Block detached_profiles_.Iterate(DeleteCpuProfile); 600f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke profiles_by_token_.Iterate(DeleteProfilesList); 6016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block code_entries_.Iterate(DeleteCodeEntry); 6026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 6036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6056ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockbool CpuProfilesCollection::StartProfiling(const char* title, unsigned uid) { 6066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ASSERT(uid > 0); 6076ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Wait(); 60880d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen if (current_profiles_.length() >= kMaxSimultaneousProfiles) { 60980d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen current_profiles_semaphore_->Signal(); 61080d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen return false; 61180d68eab642096c1a48b6474d6ec33064b0ad1f5Kristian Monsen } 6126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (int i = 0; i < current_profiles_.length(); ++i) { 6136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (strcmp(current_profiles_[i]->title(), title) == 0) { 6146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Ignore attempts to start profile with the same title. 6156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Signal(); 6166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return false; 6176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 6186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 6196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_.Add(new CpuProfile(title, uid)); 6206ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Signal(); 6216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return true; 6226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 6236ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6256ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockbool CpuProfilesCollection::StartProfiling(String* title, unsigned uid) { 6266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return StartProfiling(GetName(title), uid); 6276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 6286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 630f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeCpuProfile* CpuProfilesCollection::StopProfiling(int security_token_id, 631f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke const char* title, 6326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block double actual_sampling_rate) { 6336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const int title_len = StrLength(title); 6346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CpuProfile* profile = NULL; 6356ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Wait(); 6366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (int i = current_profiles_.length() - 1; i >= 0; --i) { 6376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (title_len == 0 || strcmp(current_profiles_[i]->title(), title) == 0) { 6386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profile = current_profiles_.Remove(i); 6396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block break; 6406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 6416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 6426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Signal(); 6436ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (profile != NULL) { 6456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profile->CalculateTotalTicks(); 6466ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profile->SetActualSamplingRate(actual_sampling_rate); 647f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* unabridged_list = 6487f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch profiles_by_token_[TokenToIndex(TokenEnumerator::kNoSecurityToken)]; 649f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke unabridged_list->Add(profile); 6506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block HashMap::Entry* entry = 6516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profiles_uids_.Lookup(reinterpret_cast<void*>(profile->uid()), 6526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block static_cast<uint32_t>(profile->uid()), 6536ded16be15dd865a9b21ea304d5273c8be299c87Steve Block true); 6546ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ASSERT(entry->value == NULL); 655f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke entry->value = reinterpret_cast<void*>(unabridged_list->length() - 1); 656f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return GetProfile(security_token_id, profile->uid()); 6576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 658f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return NULL; 6596ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 6606ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 6616ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 662f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeCpuProfile* CpuProfilesCollection::GetProfile(int security_token_id, 663f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke unsigned uid) { 66444f0eee88ff00398ff7f715fab053374d808c90dSteve Block int index = GetProfileIndex(uid); 66544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (index < 0) return NULL; 666f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* unabridged_list = 6677f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch profiles_by_token_[TokenToIndex(TokenEnumerator::kNoSecurityToken)]; 6687f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (security_token_id == TokenEnumerator::kNoSecurityToken) { 669f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return unabridged_list->at(index); 670f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 671f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* list = GetProfilesList(security_token_id); 672f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (list->at(index) == NULL) { 673b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch (*list)[index] = 674b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch unabridged_list->at(index)->FilteredClone(security_token_id); 675f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 676f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return list->at(index); 677f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 678f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 679f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 68044f0eee88ff00398ff7f715fab053374d808c90dSteve Blockint CpuProfilesCollection::GetProfileIndex(unsigned uid) { 68144f0eee88ff00398ff7f715fab053374d808c90dSteve Block HashMap::Entry* entry = profiles_uids_.Lookup(reinterpret_cast<void*>(uid), 68244f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<uint32_t>(uid), 68344f0eee88ff00398ff7f715fab053374d808c90dSteve Block false); 68444f0eee88ff00398ff7f715fab053374d808c90dSteve Block return entry != NULL ? 68544f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<int>(reinterpret_cast<intptr_t>(entry->value)) : -1; 68644f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 68744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 68844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 689756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickbool CpuProfilesCollection::IsLastProfile(const char* title) { 690756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick // Called from VM thread, and only it can mutate the list, 691756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick // so no locking is needed here. 692756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (current_profiles_.length() != 1) return false; 693756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return StrLength(title) == 0 694756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick || strcmp(current_profiles_[0]->title(), title) == 0; 695756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 696756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 697756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 69844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid CpuProfilesCollection::RemoveProfile(CpuProfile* profile) { 69944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Called from VM thread for a completed profile. 70044f0eee88ff00398ff7f715fab053374d808c90dSteve Block unsigned uid = profile->uid(); 70144f0eee88ff00398ff7f715fab053374d808c90dSteve Block int index = GetProfileIndex(uid); 70244f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (index < 0) { 70344f0eee88ff00398ff7f715fab053374d808c90dSteve Block detached_profiles_.RemoveElement(profile); 70444f0eee88ff00398ff7f715fab053374d808c90dSteve Block return; 70544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 70644f0eee88ff00398ff7f715fab053374d808c90dSteve Block profiles_uids_.Remove(reinterpret_cast<void*>(uid), 70744f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<uint32_t>(uid)); 70844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Decrement all indexes above the deleted one. 70944f0eee88ff00398ff7f715fab053374d808c90dSteve Block for (HashMap::Entry* p = profiles_uids_.Start(); 71044f0eee88ff00398ff7f715fab053374d808c90dSteve Block p != NULL; 71144f0eee88ff00398ff7f715fab053374d808c90dSteve Block p = profiles_uids_.Next(p)) { 71244f0eee88ff00398ff7f715fab053374d808c90dSteve Block intptr_t p_index = reinterpret_cast<intptr_t>(p->value); 71344f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (p_index > index) { 71444f0eee88ff00398ff7f715fab053374d808c90dSteve Block p->value = reinterpret_cast<void*>(p_index - 1); 71544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 71644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 71744f0eee88ff00398ff7f715fab053374d808c90dSteve Block for (int i = 0; i < profiles_by_token_.length(); ++i) { 71844f0eee88ff00398ff7f715fab053374d808c90dSteve Block List<CpuProfile*>* list = profiles_by_token_[i]; 71944f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (list != NULL && index < list->length()) { 72044f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Move all filtered clones into detached_profiles_, 72144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // so we can know that they are still in use. 72244f0eee88ff00398ff7f715fab053374d808c90dSteve Block CpuProfile* cloned_profile = list->Remove(index); 72344f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (cloned_profile != NULL && cloned_profile != profile) { 72444f0eee88ff00398ff7f715fab053374d808c90dSteve Block detached_profiles_.Add(cloned_profile); 72544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 72644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 72744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 72844f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 72944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 73044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 731f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarkeint CpuProfilesCollection::TokenToIndex(int security_token_id) { 7327f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ASSERT(TokenEnumerator::kNoSecurityToken == -1); 733f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return security_token_id + 1; // kNoSecurityToken -> 0, 0 -> 1, ... 734f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 735f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 736f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 737f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeList<CpuProfile*>* CpuProfilesCollection::GetProfilesList( 738f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke int security_token_id) { 739f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke const int index = TokenToIndex(security_token_id); 7407f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch const int lists_to_add = index - profiles_by_token_.length() + 1; 7417f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (lists_to_add > 0) profiles_by_token_.AddBlock(NULL, lists_to_add); 742f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* unabridged_list = 7437f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch profiles_by_token_[TokenToIndex(TokenEnumerator::kNoSecurityToken)]; 744f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke const int current_count = unabridged_list->length(); 745f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (profiles_by_token_[index] == NULL) { 746f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke profiles_by_token_[index] = new List<CpuProfile*>(current_count); 747f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 748f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* list = profiles_by_token_[index]; 7497f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch const int profiles_to_add = current_count - list->length(); 7507f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (profiles_to_add > 0) list->AddBlock(NULL, profiles_to_add); 751f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return list; 752f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 753f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 754f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 755f7060e27768c550ace7ec48ad8c093466db52dfaLeon ClarkeList<CpuProfile*>* CpuProfilesCollection::Profiles(int security_token_id) { 756f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* unabridged_list = 7577f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch profiles_by_token_[TokenToIndex(TokenEnumerator::kNoSecurityToken)]; 7587f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (security_token_id == TokenEnumerator::kNoSecurityToken) { 759f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return unabridged_list; 760f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 761f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke List<CpuProfile*>* list = GetProfilesList(security_token_id); 762f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke const int current_count = unabridged_list->length(); 763f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke for (int i = 0; i < current_count; ++i) { 764f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke if (list->at(i) == NULL) { 765b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch (*list)[i] = unabridged_list->at(i)->FilteredClone(security_token_id); 766f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 767f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } 768f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return list; 7696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 7706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7716ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7726ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCodeEntry* CpuProfilesCollection::NewCodeEntry(Logger::LogEventsAndTags tag, 7736ded16be15dd865a9b21ea304d5273c8be299c87Steve Block String* name, 7746ded16be15dd865a9b21ea304d5273c8be299c87Steve Block String* resource_name, 7756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int line_number) { 7766ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry* entry = new CodeEntry(tag, 7776ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry::kEmptyNamePrefix, 7786ded16be15dd865a9b21ea304d5273c8be299c87Steve Block GetFunctionName(name), 7796ded16be15dd865a9b21ea304d5273c8be299c87Steve Block GetName(resource_name), 780f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke line_number, 7817f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch TokenEnumerator::kNoSecurityToken); 7826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block code_entries_.Add(entry); 7836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return entry; 7846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 7856ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7876ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCodeEntry* CpuProfilesCollection::NewCodeEntry(Logger::LogEventsAndTags tag, 7886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const char* name) { 7896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry* entry = new CodeEntry(tag, 7906ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry::kEmptyNamePrefix, 7916ded16be15dd865a9b21ea304d5273c8be299c87Steve Block GetFunctionName(name), 7926ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "", 793f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke v8::CpuProfileNode::kNoLineNumberInfo, 7947f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch TokenEnumerator::kNoSecurityToken); 7956ded16be15dd865a9b21ea304d5273c8be299c87Steve Block code_entries_.Add(entry); 7966ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return entry; 7976ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 7986ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 7996ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8006ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCodeEntry* CpuProfilesCollection::NewCodeEntry(Logger::LogEventsAndTags tag, 8016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const char* name_prefix, 8026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block String* name) { 8036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry* entry = new CodeEntry(tag, 8046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block name_prefix, 8056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block GetName(name), 8066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "", 807f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke v8::CpuProfileNode::kNoLineNumberInfo, 8087f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch TokenEnumerator::kInheritsSecurityToken); 8096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block code_entries_.Add(entry); 8106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block return entry; 8116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 8126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8146ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockCodeEntry* CpuProfilesCollection::NewCodeEntry(Logger::LogEventsAndTags tag, 8156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block int args_count) { 8166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry* entry = new CodeEntry(tag, 8176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "args_count: ", 8186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block GetName(args_count), 8196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block "", 820f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke v8::CpuProfileNode::kNoLineNumberInfo, 8217f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch TokenEnumerator::kInheritsSecurityToken); 822f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke code_entries_.Add(entry); 823f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke return entry; 824f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke} 825f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 826f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 8276ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid CpuProfilesCollection::AddPathToCurrentProfiles( 8286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const Vector<CodeEntry*>& path) { 8296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // As starting / stopping profiles is rare relatively to this 8306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // method, we don't bother minimizing the duration of lock holding, 8316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // e.g. copying contents of the list to a local vector. 8326ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Wait(); 8336ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (int i = 0; i < current_profiles_.length(); ++i) { 8346ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_[i]->AddPath(path); 8356ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 8366ded16be15dd865a9b21ea304d5273c8be299c87Steve Block current_profiles_semaphore_->Signal(); 8376ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 8386ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8396ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8406ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid SampleRateCalculator::Tick() { 8416ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (--wall_time_query_countdown_ == 0) 8426ded16be15dd865a9b21ea304d5273c8be299c87Steve Block UpdateMeasurements(OS::TimeCurrentMillis()); 8436ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 8446ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8456ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8466ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid SampleRateCalculator::UpdateMeasurements(double current_time) { 8476ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (measurements_count_++ != 0) { 8486ded16be15dd865a9b21ea304d5273c8be299c87Steve Block const double measured_ticks_per_ms = 8496ded16be15dd865a9b21ea304d5273c8be299c87Steve Block (kWallTimeQueryIntervalMs * ticks_per_ms_) / 8506ded16be15dd865a9b21ea304d5273c8be299c87Steve Block (current_time - last_wall_time_); 8516ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Update the average value. 8526ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ticks_per_ms_ += 8536ded16be15dd865a9b21ea304d5273c8be299c87Steve Block (measured_ticks_per_ms - ticks_per_ms_) / measurements_count_; 8546ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Update the externally accessible result. 8556ded16be15dd865a9b21ea304d5273c8be299c87Steve Block result_ = static_cast<AtomicWord>(ticks_per_ms_ * kResultScale); 8566ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 8576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block last_wall_time_ = current_time; 8586ded16be15dd865a9b21ea304d5273c8be299c87Steve Block wall_time_query_countdown_ = 8596ded16be15dd865a9b21ea304d5273c8be299c87Steve Block static_cast<unsigned>(kWallTimeQueryIntervalMs * ticks_per_ms_); 8606ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 8616ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8626ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 86344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* const ProfileGenerator::kAnonymousFunctionName = 86444f0eee88ff00398ff7f715fab053374d808c90dSteve Block "(anonymous function)"; 86544f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* const ProfileGenerator::kProgramEntryName = 86644f0eee88ff00398ff7f715fab053374d808c90dSteve Block "(program)"; 86744f0eee88ff00398ff7f715fab053374d808c90dSteve Blockconst char* const ProfileGenerator::kGarbageCollectorEntryName = 86844f0eee88ff00398ff7f715fab053374d808c90dSteve Block "(garbage collector)"; 8696ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8706ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8716ded16be15dd865a9b21ea304d5273c8be299c87Steve BlockProfileGenerator::ProfileGenerator(CpuProfilesCollection* profiles) 8726ded16be15dd865a9b21ea304d5273c8be299c87Steve Block : profiles_(profiles), 8736ded16be15dd865a9b21ea304d5273c8be299c87Steve Block program_entry_( 8746ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profiles->NewCodeEntry(Logger::FUNCTION_TAG, kProgramEntryName)), 8756ded16be15dd865a9b21ea304d5273c8be299c87Steve Block gc_entry_( 8766ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profiles->NewCodeEntry(Logger::BUILTIN_TAG, 8776ded16be15dd865a9b21ea304d5273c8be299c87Steve Block kGarbageCollectorEntryName)) { 8786ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 8796ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8806ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 8816ded16be15dd865a9b21ea304d5273c8be299c87Steve Blockvoid ProfileGenerator::RecordTickSample(const TickSample& sample) { 8826ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // Allocate space for stack frames + pc + function + vm-state. 8836ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ScopedVector<CodeEntry*> entries(sample.frames_count + 3); 8846ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // As actual number of decoded code entries may vary, initialize 8856ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // entries vector with NULL values. 8866ded16be15dd865a9b21ea304d5273c8be299c87Steve Block CodeEntry** entry = entries.start(); 8876ded16be15dd865a9b21ea304d5273c8be299c87Steve Block memset(entry, 0, entries.length() * sizeof(*entry)); 8886ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (sample.pc != NULL) { 8896ded16be15dd865a9b21ea304d5273c8be299c87Steve Block *entry++ = code_map_.FindEntry(sample.pc); 8906ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 89144f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (sample.has_external_callback) { 89244f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Don't use PC when in external callback code, as it can point 89344f0eee88ff00398ff7f715fab053374d808c90dSteve Block // inside callback's code, and we will erroneously report 89444f0eee88ff00398ff7f715fab053374d808c90dSteve Block // that a callback calls itself. 89544f0eee88ff00398ff7f715fab053374d808c90dSteve Block *(entries.start()) = NULL; 89644f0eee88ff00398ff7f715fab053374d808c90dSteve Block *entry++ = code_map_.FindEntry(sample.external_callback); 89744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else if (sample.tos != NULL) { 89844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Find out, if top of stack was pointing inside a JS function 89944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // meaning that we have encountered a frameless invocation. 900e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch *entry = code_map_.FindEntry(sample.tos); 9016ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (*entry != NULL && !(*entry)->is_js_function()) { 9026ded16be15dd865a9b21ea304d5273c8be299c87Steve Block *entry = NULL; 9036ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9046ded16be15dd865a9b21ea304d5273c8be299c87Steve Block entry++; 9056ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9066ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 9073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (const Address* stack_pos = sample.stack, 9086ded16be15dd865a9b21ea304d5273c8be299c87Steve Block *stack_end = stack_pos + sample.frames_count; 9096ded16be15dd865a9b21ea304d5273c8be299c87Steve Block stack_pos != stack_end; 9106ded16be15dd865a9b21ea304d5273c8be299c87Steve Block ++stack_pos) { 9116ded16be15dd865a9b21ea304d5273c8be299c87Steve Block *entry++ = code_map_.FindEntry(*stack_pos); 9126ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9136ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9146ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 9156ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (FLAG_prof_browser_mode) { 9166ded16be15dd865a9b21ea304d5273c8be299c87Steve Block bool no_symbolized_entries = true; 9176ded16be15dd865a9b21ea304d5273c8be299c87Steve Block for (CodeEntry** e = entries.start(); e != entry; ++e) { 9186ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (*e != NULL) { 9196ded16be15dd865a9b21ea304d5273c8be299c87Steve Block no_symbolized_entries = false; 9206ded16be15dd865a9b21ea304d5273c8be299c87Steve Block break; 9216ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9226ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9236ded16be15dd865a9b21ea304d5273c8be299c87Steve Block // If no frames were symbolized, put the VM state entry in. 9246ded16be15dd865a9b21ea304d5273c8be299c87Steve Block if (no_symbolized_entries) { 9256ded16be15dd865a9b21ea304d5273c8be299c87Steve Block *entry++ = EntryForVMState(sample.state); 9266ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9276ded16be15dd865a9b21ea304d5273c8be299c87Steve Block } 9286ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 9296ded16be15dd865a9b21ea304d5273c8be299c87Steve Block profiles_->AddPathToCurrentProfiles(entries); 9306ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} 9316ded16be15dd865a9b21ea304d5273c8be299c87Steve Block 9327f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 933756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapGraphEdge::Init( 934756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int child_index, Type type, const char* name, HeapEntry* to) { 9358a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang ASSERT(type == kContextVariable 9368a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang || type == kProperty 9378a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang || type == kInternal 9388a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang || type == kShortcut); 939756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_index_ = child_index; 940756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick type_ = type; 941756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick name_ = name; 942756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick to_ = to; 9437f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 9447f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9457f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9468a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapGraphEdge::Init(int child_index, Type type, int index, HeapEntry* to) { 9473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(type == kElement || type == kHidden || type == kWeak); 948756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_index_ = child_index; 9498a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang type_ = type; 950756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick index_ = index; 951756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick to_ = to; 9527f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 9537f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9547f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9558a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapGraphEdge::Init(int child_index, int index, HeapEntry* to) { 9568a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang Init(child_index, kElement, index, to); 9578a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 9588a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 9598a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 960756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain MerrickHeapEntry* HeapGraphEdge::From() { 961756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return reinterpret_cast<HeapEntry*>(this - child_index_) - 1; 9627f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 9637f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9647f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 965756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapEntry::Init(HeapSnapshot* snapshot, 966756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick Type type, 967756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick const char* name, 9683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId id, 969756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int self_size, 970756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int children_count, 971756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int retainers_count) { 972756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick snapshot_ = snapshot; 973756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick type_ = type; 9743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch painted_ = false; 975756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick name_ = name; 976756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick self_size_ = self_size; 9778a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang retained_size_ = 0; 978756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick children_count_ = children_count; 979756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick retainers_count_ = retainers_count; 9808a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang dominator_ = NULL; 9813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch id_ = id; 9827f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 9837f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 9847f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 985756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapEntry::SetNamedReference(HeapGraphEdge::Type type, 986756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int child_index, 987756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick const char* name, 988756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* entry, 989756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int retainer_index) { 9903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children()[child_index].Init(child_index, type, name, entry); 9913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->retainers()[retainer_index] = children_arr() + child_index; 9929dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen} 9939dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen 9949dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen 9958a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapEntry::SetIndexedReference(HeapGraphEdge::Type type, 9968a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang int child_index, 9978a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang int index, 9988a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapEntry* entry, 9998a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang int retainer_index) { 10003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children()[child_index].Init(child_index, type, index, entry); 10013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->retainers()[retainer_index] = children_arr() + child_index; 10027f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 10037f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 10047f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1005756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapEntry::SetUnidirElementReference( 1006756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int child_index, int index, HeapEntry* entry) { 10073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children()[child_index].Init(child_index, index, entry); 10087f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 10097f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 10107f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 101169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen MurdochHandle<HeapObject> HeapEntry::GetHeapObject() { 101269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return snapshot_->collection()->FindHeapObjectById(id()); 101369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 101469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 101569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 10163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HeapEntry::Print( 10173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* prefix, const char* edge_name, int max_depth, int indent) { 10183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch OS::Print("%6d %7d @%6llu %*c %s%s: ", 10193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch self_size(), retained_size(), id(), 10203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch indent, ' ', prefix, edge_name); 1021756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (type() != kString) { 1022756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick OS::Print("%s %.40s\n", TypeAsString(), name_); 1023756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } else { 1024756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick OS::Print("\""); 1025756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick const char* c = name_; 1026756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick while (*c && (c - name_) <= 40) { 1027756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (*c != '\n') 1028756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick OS::Print("%c", *c); 1029756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick else 1030756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick OS::Print("\\n"); 1031756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++c; 1032756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1033756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick OS::Print("\"\n"); 10343bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 1035756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (--max_depth == 0) return; 1036756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick Vector<HeapGraphEdge> ch = children(); 1037756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick for (int i = 0; i < ch.length(); ++i) { 1038756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapGraphEdge& edge = ch[i]; 10393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* edge_prefix = ""; 10403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmbeddedVector<char, 64> index; 10413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* edge_name = index.start(); 1042756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick switch (edge.type()) { 1043756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case HeapGraphEdge::kContextVariable: 10443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_prefix = "#"; 10453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_name = edge.name(); 1046756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick break; 1047756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case HeapGraphEdge::kElement: 10483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch OS::SNPrintF(index, "%d", edge.index()); 1049756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick break; 1050756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case HeapGraphEdge::kInternal: 10513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_prefix = "$"; 10523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_name = edge.name(); 1053756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick break; 1054756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case HeapGraphEdge::kProperty: 10553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_name = edge.name(); 1056756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick break; 10578a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang case HeapGraphEdge::kHidden: 10583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_prefix = "$"; 10593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch OS::SNPrintF(index, "%d", edge.index()); 10608a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang break; 10618a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang case HeapGraphEdge::kShortcut: 10623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_prefix = "^"; 10633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_name = edge.name(); 10643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 10653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case HeapGraphEdge::kWeak: 10663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge_prefix = "w"; 10673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch OS::SNPrintF(index, "%d", edge.index()); 10688a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang break; 1069756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick default: 10703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch OS::SNPrintF(index, "!!! unknown edge type: %d ", edge.type()); 1071756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 10723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge.to()->Print(edge_prefix, edge_name, max_depth, indent + 2); 1073756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1074756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 10753bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 10763bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 1077756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickconst char* HeapEntry::TypeAsString() { 1078756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick switch (type()) { 10798a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang case kHidden: return "/hidden/"; 1080756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case kObject: return "/object/"; 1081756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case kClosure: return "/closure/"; 1082756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case kString: return "/string/"; 1083756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case kCode: return "/code/"; 1084756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick case kArray: return "/array/"; 1085f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch case kRegExp: return "/regexp/"; 1086f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch case kHeapNumber: return "/number/"; 108744f0eee88ff00398ff7f715fab053374d808c90dSteve Block case kNative: return "/native/"; 10883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case kSynthetic: return "/synthetic/"; 1089756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick default: return "???"; 10903bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 1091756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 10923bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 10933bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 10943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochsize_t HeapEntry::EntriesSize(int entries_count, 10953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int children_count, 10963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int retainers_count) { 1097756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return sizeof(HeapEntry) * entries_count // NOLINT 1098756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick + sizeof(HeapGraphEdge) * children_count // NOLINT 1099756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick + sizeof(HeapGraphEdge*) * retainers_count; // NOLINT 11003bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 11013bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 11027f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1103756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick// It is very important to keep objects that form a heap snapshot 1104756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick// as small as possible. 1105756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merricknamespace { // Avoid littering the global namespace. 11067f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1107756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merricktemplate <size_t ptr_size> struct SnapshotSizeConstants; 11087f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1109756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merricktemplate <> struct SnapshotSizeConstants<4> { 1110756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick static const int kExpectedHeapGraphEdgeSize = 12; 11113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kExpectedHeapEntrySize = 32; 11123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const size_t kMaxSerializableSnapshotRawSize = 256 * MB; 1113756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick}; 11147f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1115756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merricktemplate <> struct SnapshotSizeConstants<8> { 1116756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick static const int kExpectedHeapGraphEdgeSize = 24; 11178a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang static const int kExpectedHeapEntrySize = 48; 11183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const uint64_t kMaxSerializableSnapshotRawSize = 11193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<uint64_t>(6000) * MB; 1120756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick}; 11217f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1122756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} // namespace 11237f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 11247f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochHeapSnapshot::HeapSnapshot(HeapSnapshotsCollection* collection, 1125791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block HeapSnapshot::Type type, 11267f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch const char* title, 11277f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch unsigned uid) 11287f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch : collection_(collection), 1129791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block type_(type), 11307f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch title_(title), 11317f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch uid_(uid), 1132f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch root_entry_(NULL), 11338a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang gc_roots_entry_(NULL), 113444f0eee88ff00398ff7f715fab053374d808c90dSteve Block natives_root_entry_(NULL), 1135756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick raw_entries_(NULL), 113644f0eee88ff00398ff7f715fab053374d808c90dSteve Block entries_sorted_(false) { 11373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK( 1138756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick sizeof(HeapGraphEdge) == 1139c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch SnapshotSizeConstants<kPointerSize>::kExpectedHeapGraphEdgeSize); 11403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK( 1141756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick sizeof(HeapEntry) == 11423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotSizeConstants<kPointerSize>::kExpectedHeapEntrySize); 11433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < VisitorSynchronization::kNumberOfSyncTags; ++i) { 11443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch gc_subroot_entries_[i] = NULL; 11453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 11463bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 11473bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 11483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 11493bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochHeapSnapshot::~HeapSnapshot() { 1150756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick DeleteArray(raw_entries_); 115144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 115244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 115344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 115444f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid HeapSnapshot::Delete() { 115544f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->RemoveSnapshot(this); 115644f0eee88ff00398ff7f715fab053374d808c90dSteve Block delete this; 11577f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 11587f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 11597f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1160756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapSnapshot::AllocateEntries(int entries_count, 1161756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int children_count, 1162756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int retainers_count) { 1163756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ASSERT(raw_entries_ == NULL); 1164791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block raw_entries_size_ = 1165791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block HeapEntry::EntriesSize(entries_count, children_count, retainers_count); 116669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch raw_entries_ = NewArray<char>(raw_entries_size_); 11677f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 11687f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 11697f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1170756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickstatic void HeapEntryClearPaint(HeapEntry** entry_ptr) { 1171756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick (*entry_ptr)->clear_paint(); 11727f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 11737f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 11743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1175756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickvoid HeapSnapshot::ClearPaint() { 1176756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_.Iterate(HeapEntryClearPaint); 11779dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen} 11789dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen 11799dcf7e2f83591d471e88bf7d230651900b8e424bKristian Monsen 1180e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* HeapSnapshot::AddRootEntry(int children_count) { 1181e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ASSERT(root_entry_ == NULL); 1182e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return (root_entry_ = AddEntry(HeapEntry::kObject, 1183e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch "", 1184e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapObjectsMap::kInternalRootObjectId, 1185e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 0, 1186e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1187e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 0)); 1188e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 1189e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1190e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1191e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* HeapSnapshot::AddGcRootsEntry(int children_count, 1192e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int retainers_count) { 1193e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ASSERT(gc_roots_entry_ == NULL); 1194e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return (gc_roots_entry_ = AddEntry(HeapEntry::kObject, 1195e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch "(GC roots)", 1196e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapObjectsMap::kGcRootsObjectId, 1197e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 0, 1198e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1199e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count)); 1200791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block} 1201791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 1202791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 12033ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapEntry* HeapSnapshot::AddGcSubrootEntry(int tag, 12043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int children_count, 12053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int retainers_count) { 12063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(gc_subroot_entries_[tag] == NULL); 12073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(0 <= tag && tag < VisitorSynchronization::kNumberOfSyncTags); 12083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return (gc_subroot_entries_[tag] = AddEntry( 1209c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch HeapEntry::kObject, 12103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch VisitorSynchronization::kTagNames[tag], 12113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObjectsMap::GetNthGcSubrootId(tag), 1212c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch 0, 1213c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch children_count, 1214c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch retainers_count)); 1215c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch} 1216c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch 1217c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch 1218791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve BlockHeapEntry* HeapSnapshot::AddEntry(HeapEntry::Type type, 1219791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block const char* name, 12203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId id, 1221791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block int size, 1222791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block int children_count, 1223791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block int retainers_count) { 1224756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* entry = GetNextEntryToInit(); 1225791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block entry->Init(this, type, name, id, size, children_count, retainers_count); 12267f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch return entry; 12277f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 12287f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 12297f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 12308a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapSnapshot::SetDominatorsToSelf() { 12318a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang for (int i = 0; i < entries_.length(); ++i) { 12328a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapEntry* entry = entries_[i]; 12338a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (entry->dominator() == NULL) entry->set_dominator(entry); 12348a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 12358a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 12368a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 12378a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 1238756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain MerrickHeapEntry* HeapSnapshot::GetNextEntryToInit() { 1239756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (entries_.length() > 0) { 1240756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* last_entry = entries_.last(); 1241756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_.Add(reinterpret_cast<HeapEntry*>( 1242756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick reinterpret_cast<char*>(last_entry) + last_entry->EntrySize())); 1243756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } else { 1244756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_.Add(reinterpret_cast<HeapEntry*>(raw_entries_)); 12457f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 1246791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block ASSERT(reinterpret_cast<char*>(entries_.last()) < 1247791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block (raw_entries_ + raw_entries_size_)); 1248756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return entries_.last(); 12497f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 12507f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 12517f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 12523ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapEntry* HeapSnapshot::GetEntryById(SnapshotObjectId id) { 1253b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch List<HeapEntry*>* entries_by_id = GetSortedEntriesList(); 1254b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1255b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // Perform a binary search by id. 1256b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int low = 0; 1257b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int high = entries_by_id->length() - 1; 1258b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (low <= high) { 1259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int mid = 1260b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch (static_cast<unsigned int>(low) + static_cast<unsigned int>(high)) >> 1; 12613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId mid_id = entries_by_id->at(mid)->id(); 1262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (mid_id > id) 1263b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch high = mid - 1; 1264b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch else if (mid_id < id) 1265b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch low = mid + 1; 1266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch else 1267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return entries_by_id->at(mid); 1268b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 1269b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return NULL; 1270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1271b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 12733bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochtemplate<class T> 12743bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochstatic int SortByIds(const T* entry1_ptr, 12753bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch const T* entry2_ptr) { 12763bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if ((*entry1_ptr)->id() == (*entry2_ptr)->id()) return 0; 12773bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch return (*entry1_ptr)->id() < (*entry2_ptr)->id() ? -1 : 1; 12783bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 12793bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 12803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 12813bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochList<HeapEntry*>* HeapSnapshot::GetSortedEntriesList() { 1282756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (!entries_sorted_) { 1283756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_.Sort(SortByIds); 1284756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_sorted_ = true; 1285756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1286756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return &entries_; 12873bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 12883bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 12893bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 12907f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochvoid HeapSnapshot::Print(int max_depth) { 12913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch root()->Print("", "", max_depth, 0); 12927f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 12937f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 12947f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 129544f0eee88ff00398ff7f715fab053374d808c90dSteve Block// We split IDs on evens for embedder objects (see 129644f0eee88ff00398ff7f715fab053374d808c90dSteve Block// HeapObjectsMap::GenerateId) and odds for native objects. 12973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochconst SnapshotObjectId HeapObjectsMap::kInternalRootObjectId = 1; 12983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochconst SnapshotObjectId HeapObjectsMap::kGcRootsObjectId = 12993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObjectsMap::kInternalRootObjectId + HeapObjectsMap::kObjectIdStep; 13003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochconst SnapshotObjectId HeapObjectsMap::kGcRootsFirstSubrootId = 13013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObjectsMap::kGcRootsObjectId + HeapObjectsMap::kObjectIdStep; 13023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochconst SnapshotObjectId HeapObjectsMap::kFirstAvailableObjectId = 13033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObjectsMap::kGcRootsFirstSubrootId + 13043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch VisitorSynchronization::kNumberOfSyncTags * HeapObjectsMap::kObjectIdStep; 13058a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 13063bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochHeapObjectsMap::HeapObjectsMap() 13073bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch : initial_fill_mode_(true), 13088a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang next_id_(kFirstAvailableObjectId), 13093bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entries_map_(AddressesMatch), 13103bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entries_(new List<EntryInfo>()) { } 13113bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13123bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13133bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben MurdochHeapObjectsMap::~HeapObjectsMap() { 13143bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch delete entries_; 13153bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13163bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13173bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13183bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvoid HeapObjectsMap::SnapshotGenerationFinished() { 131969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch initial_fill_mode_ = false; 132069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch RemoveDeadEntries(); 13213bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13223bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13233bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13243ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochSnapshotObjectId HeapObjectsMap::FindObject(Address addr) { 13253bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (!initial_fill_mode_) { 13263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId existing = FindEntry(addr); 13273bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (existing != 0) return existing; 13283bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 13293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId id = next_id_; 13303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch next_id_ += kObjectIdStep; 13313bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch AddEntry(addr, id); 13323bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch return id; 13333bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13343bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13353bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13363bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvoid HeapObjectsMap::MoveObject(Address from, Address to) { 13373bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (from == to) return; 13383bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch HashMap::Entry* entry = entries_map_.Lookup(from, AddressHash(from), false); 13393bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (entry != NULL) { 13403bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch void* value = entry->value; 13413bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entries_map_.Remove(from, AddressHash(from)); 13423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (to != NULL) { 13433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry = entries_map_.Lookup(to, AddressHash(to), true); 13443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // We can have an entry at the new location, it is OK, as GC can overwrite 13453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // dead objects with alive objects being moved. 13463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->value = value; 13473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 13483bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 13493bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13503bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13513bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid HeapObjectsMap::AddEntry(Address addr, SnapshotObjectId id) { 13533bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch HashMap::Entry* entry = entries_map_.Lookup(addr, AddressHash(addr), true); 13543bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch ASSERT(entry->value == NULL); 13553bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entry->value = reinterpret_cast<void*>(entries_->length()); 13563bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entries_->Add(EntryInfo(id)); 13573bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13583bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13593bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13603ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochSnapshotObjectId HeapObjectsMap::FindEntry(Address addr) { 13613bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch HashMap::Entry* entry = entries_map_.Lookup(addr, AddressHash(addr), false); 13623bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (entry != NULL) { 13633bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch int entry_index = 13643bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch static_cast<int>(reinterpret_cast<intptr_t>(entry->value)); 13653bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch EntryInfo& entry_info = entries_->at(entry_index); 13663bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entry_info.accessed = true; 13673bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch return entry_info.id; 13683bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } else { 13693bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch return 0; 13703bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 13713bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13723bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13733bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13743bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdochvoid HeapObjectsMap::RemoveDeadEntries() { 13753bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch List<EntryInfo>* new_entries = new List<EntryInfo>(); 1376756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick List<void*> dead_entries; 13773bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch for (HashMap::Entry* entry = entries_map_.Start(); 13783bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entry != NULL; 13793bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entry = entries_map_.Next(entry)) { 13803bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch int entry_index = 13813bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch static_cast<int>(reinterpret_cast<intptr_t>(entry->value)); 13823bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch EntryInfo& entry_info = entries_->at(entry_index); 13833bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch if (entry_info.accessed) { 13843bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entry->value = reinterpret_cast<void*>(new_entries->length()); 13853bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch new_entries->Add(EntryInfo(entry_info.id, false)); 1386756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } else { 1387756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick dead_entries.Add(entry->key); 13883bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 13893bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch } 1390756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick for (int i = 0; i < dead_entries.length(); ++i) { 1391756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick void* raw_entry = dead_entries[i]; 1392756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_map_.Remove( 1393756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick raw_entry, AddressHash(reinterpret_cast<Address>(raw_entry))); 1394756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 13953bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch delete entries_; 13963bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch entries_ = new_entries; 13973bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 13983bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 13993bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 14003ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochSnapshotObjectId HeapObjectsMap::GenerateId(v8::RetainedObjectInfo* info) { 14013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId id = static_cast<SnapshotObjectId>(info->GetHash()); 140244f0eee88ff00398ff7f715fab053374d808c90dSteve Block const char* label = info->GetLabel(); 1403c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch id ^= HashSequentialString(label, 1404c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch static_cast<int>(strlen(label)), 1405c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch HEAP->HashSeed()); 140644f0eee88ff00398ff7f715fab053374d808c90dSteve Block intptr_t element_count = info->GetElementCount(); 140744f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (element_count != -1) 1408c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch id ^= ComputeIntegerHash(static_cast<uint32_t>(element_count), 1409c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch v8::internal::kZeroHashSeed); 141044f0eee88ff00398ff7f715fab053374d808c90dSteve Block return id << 1; 141144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 141244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 141344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 14147f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochHeapSnapshotsCollection::HeapSnapshotsCollection() 14153bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch : is_tracking_objects_(false), 14163bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch snapshots_uids_(HeapSnapshotsMatch), 14177f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch token_enumerator_(new TokenEnumerator()) { 14187f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 14197f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14207f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14217f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdochstatic void DeleteHeapSnapshot(HeapSnapshot** snapshot_ptr) { 14227f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch delete *snapshot_ptr; 14237f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 14247f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14257f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14267f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochHeapSnapshotsCollection::~HeapSnapshotsCollection() { 14277f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch delete token_enumerator_; 14287f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch snapshots_.Iterate(DeleteHeapSnapshot); 14297f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 14307f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14317f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1432791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve BlockHeapSnapshot* HeapSnapshotsCollection::NewSnapshot(HeapSnapshot::Type type, 1433791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block const char* name, 14347f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch unsigned uid) { 14353bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch is_tracking_objects_ = true; // Start watching for heap objects moves. 1436b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return new HeapSnapshot(this, type, name, uid); 1437b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1438b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1439b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1440b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HeapSnapshotsCollection::SnapshotGenerationFinished( 1441b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HeapSnapshot* snapshot) { 1442b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ids_.SnapshotGenerationFinished(); 1443b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (snapshot != NULL) { 1444b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch snapshots_.Add(snapshot); 1445b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HashMap::Entry* entry = 1446b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch snapshots_uids_.Lookup(reinterpret_cast<void*>(snapshot->uid()), 1447b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch static_cast<uint32_t>(snapshot->uid()), 1448b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch true); 1449b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ASSERT(entry->value == NULL); 1450b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch entry->value = snapshot; 1451b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 14527f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 14537f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14547f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14557f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen MurdochHeapSnapshot* HeapSnapshotsCollection::GetSnapshot(unsigned uid) { 14567f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch HashMap::Entry* entry = snapshots_uids_.Lookup(reinterpret_cast<void*>(uid), 14577f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch static_cast<uint32_t>(uid), 14587f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch false); 14597f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch return entry != NULL ? reinterpret_cast<HeapSnapshot*>(entry->value) : NULL; 14607f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 14617f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 14627f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 146344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid HeapSnapshotsCollection::RemoveSnapshot(HeapSnapshot* snapshot) { 146444f0eee88ff00398ff7f715fab053374d808c90dSteve Block snapshots_.RemoveElement(snapshot); 146544f0eee88ff00398ff7f715fab053374d808c90dSteve Block unsigned uid = snapshot->uid(); 146644f0eee88ff00398ff7f715fab053374d808c90dSteve Block snapshots_uids_.Remove(reinterpret_cast<void*>(uid), 146744f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<uint32_t>(uid)); 14683bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch} 14693bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 14703bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 14713ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHandle<HeapObject> HeapSnapshotsCollection::FindHeapObjectById( 14723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotObjectId id) { 14733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // First perform a full GC in order to avoid dead objects. 14743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HEAP->CollectAllGarbage(Heap::kMakeHeapIterableMask, 14753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "HeapSnapshotsCollection::FindHeapObjectById"); 147669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch AssertNoAllocation no_allocation; 147769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapObject* object = NULL; 147869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapIterator iterator(HeapIterator::kFilterUnreachable); 147969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Make sure that object with the given id is still reachable. 148069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch for (HeapObject* obj = iterator.next(); 148169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch obj != NULL; 148269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch obj = iterator.next()) { 148369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (ids_.FindObject(obj->address()) == id) { 148469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch ASSERT(object == NULL); 148569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch object = obj; 148669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Can't break -- kFilterUnreachable requires full heap traversal. 148769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 148869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 148969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return object != NULL ? Handle<HeapObject>(object) : Handle<HeapObject>(); 149069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 149169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 149269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 14933ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapEntry* const HeapEntriesMap::kHeapEntryPlaceholder = 1494791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block reinterpret_cast<HeapEntry*>(1); 1495791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 1496756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain MerrickHeapEntriesMap::HeapEntriesMap() 1497e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch : entries_(HeapThingsMatch), 1498756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick entries_count_(0), 1499756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick total_children_count_(0), 1500756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick total_retainers_count_(0) { 1501756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1502756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1503756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1504756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain MerrickHeapEntriesMap::~HeapEntriesMap() { 1505756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick for (HashMap::Entry* p = entries_.Start(); p != NULL; p = entries_.Next(p)) { 15068a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang delete reinterpret_cast<EntryInfo*>(p->value); 1507756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1508756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1509756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1510756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1511e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid HeapEntriesMap::AllocateEntries() { 1512e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch for (HashMap::Entry* p = entries_.Start(); 1513e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch p != NULL; 1514e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch p = entries_.Next(p)) { 1515e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch EntryInfo* entry_info = reinterpret_cast<EntryInfo*>(p->value); 1516e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entry_info->entry = entry_info->allocator->AllocateEntry( 1517e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch p->key, 1518e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entry_info->children_count, 1519e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entry_info->retainers_count); 152044f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(entry_info->entry != NULL); 152144f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(entry_info->entry != kHeapEntryPlaceholder); 1522e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entry_info->children_count = 0; 1523e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entry_info->retainers_count = 0; 1524e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 1525e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 1526e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1527e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1528e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* HeapEntriesMap::Map(HeapThing thing) { 1529e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HashMap::Entry* cache_entry = entries_.Lookup(thing, Hash(thing), false); 1530756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (cache_entry != NULL) { 15318a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang EntryInfo* entry_info = reinterpret_cast<EntryInfo*>(cache_entry->value); 1532756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return entry_info->entry; 1533756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } else { 1534756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick return NULL; 1535756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1536756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1537756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1538756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1539e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid HeapEntriesMap::Pair( 1540e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing thing, HeapEntriesAllocator* allocator, HeapEntry* entry) { 1541e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HashMap::Entry* cache_entry = entries_.Lookup(thing, Hash(thing), true); 1542756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ASSERT(cache_entry->value == NULL); 1543e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch cache_entry->value = new EntryInfo(entry, allocator); 1544756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++entries_count_; 1545756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1546756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1547756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1548e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid HeapEntriesMap::CountReference(HeapThing from, HeapThing to, 1549756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int* prev_children_count, 1550756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int* prev_retainers_count) { 1551791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block HashMap::Entry* from_cache_entry = entries_.Lookup(from, Hash(from), false); 1552756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HashMap::Entry* to_cache_entry = entries_.Lookup(to, Hash(to), false); 1553756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ASSERT(from_cache_entry != NULL); 1554756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ASSERT(to_cache_entry != NULL); 1555756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick EntryInfo* from_entry_info = 15568a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang reinterpret_cast<EntryInfo*>(from_cache_entry->value); 1557756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick EntryInfo* to_entry_info = 15588a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang reinterpret_cast<EntryInfo*>(to_cache_entry->value); 1559756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (prev_children_count) 1560756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick *prev_children_count = from_entry_info->children_count; 1561756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (prev_retainers_count) 1562756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick *prev_retainers_count = to_entry_info->retainers_count; 1563756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++from_entry_info->children_count; 1564756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++to_entry_info->retainers_count; 1565756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++total_children_count_; 1566756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ++total_retainers_count_; 1567756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1568756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1569756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 15708a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) WangHeapObjectsSet::HeapObjectsSet() 1571e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch : entries_(HeapEntriesMap::HeapThingsMatch) { 15728a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 15738a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15748a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15758a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapObjectsSet::Clear() { 15768a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang entries_.Clear(); 15778a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 15788a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15798a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15808a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangbool HeapObjectsSet::Contains(Object* obj) { 15818a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (!obj->IsHeapObject()) return false; 15828a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapObject* object = HeapObject::cast(obj); 15838a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HashMap::Entry* cache_entry = 15848a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang entries_.Lookup(object, HeapEntriesMap::Hash(object), false); 15858a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang return cache_entry != NULL; 15868a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 15878a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15888a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15898a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wangvoid HeapObjectsSet::Insert(Object* obj) { 15908a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (!obj->IsHeapObject()) return; 15918a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapObject* object = HeapObject::cast(obj); 15928a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HashMap::Entry* cache_entry = 15938a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang entries_.Lookup(object, HeapEntriesMap::Hash(object), true); 15948a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (cache_entry->value == NULL) { 15958a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang cache_entry->value = HeapEntriesMap::kHeapEntryPlaceholder; 15968a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 15978a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 15988a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 15998a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 16003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochconst char* HeapObjectsSet::GetTag(Object* obj) { 16013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch HeapObject* object = HeapObject::cast(obj); 16023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch HashMap::Entry* cache_entry = 16033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch entries_.Lookup(object, HeapEntriesMap::Hash(object), false); 16043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (cache_entry != NULL 16053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch && cache_entry->value != HeapEntriesMap::kHeapEntryPlaceholder) { 16063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return reinterpret_cast<const char*>(cache_entry->value); 16073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else { 16083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch return NULL; 16093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 16103fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 16113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 16123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 16133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid HeapObjectsSet::SetTag(Object* obj, const char* tag) { 16143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (!obj->IsHeapObject()) return; 16153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch HeapObject* object = HeapObject::cast(obj); 16163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch HashMap::Entry* cache_entry = 16173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch entries_.Lookup(object, HeapEntriesMap::Hash(object), true); 16183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch cache_entry->value = const_cast<char*>(tag); 16193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 16203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 16213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 16223ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapObject* const V8HeapExplorer::kInternalRootObject = 162344f0eee88ff00398ff7f715fab053374d808c90dSteve Block reinterpret_cast<HeapObject*>( 162444f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<intptr_t>(HeapObjectsMap::kInternalRootObjectId)); 16253ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapObject* const V8HeapExplorer::kGcRootsObject = 162644f0eee88ff00398ff7f715fab053374d808c90dSteve Block reinterpret_cast<HeapObject*>( 162744f0eee88ff00398ff7f715fab053374d808c90dSteve Block static_cast<intptr_t>(HeapObjectsMap::kGcRootsObjectId)); 16283ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapObject* const V8HeapExplorer::kFirstGcSubrootObject = 16293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<HeapObject*>( 16303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<intptr_t>(HeapObjectsMap::kGcRootsFirstSubrootId)); 16313ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapObject* const V8HeapExplorer::kLastGcSubrootObject = 16323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<HeapObject*>( 16333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<intptr_t>(HeapObjectsMap::kFirstAvailableObjectId)); 1634e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1635e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 1636e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochV8HeapExplorer::V8HeapExplorer( 1637e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapSnapshot* snapshot, 1638e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch SnapshottingProgressReportingInterface* progress) 16393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch : heap_(Isolate::Current()->heap()), 16403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch snapshot_(snapshot), 1641e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch collection_(snapshot_->collection()), 1642e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch progress_(progress), 1643756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick filler_(NULL) { 16447f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 16457f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1646756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1647e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochV8HeapExplorer::~V8HeapExplorer() { 1648e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 16498a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 16508a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 1651e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* V8HeapExplorer::AllocateEntry( 1652e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing ptr, int children_count, int retainers_count) { 1653e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry( 1654e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch reinterpret_cast<HeapObject*>(ptr), children_count, retainers_count); 1655e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 16567f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1657b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1658e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* V8HeapExplorer::AddEntry(HeapObject* object, 1659e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int children_count, 1660e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int retainers_count) { 1661e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (object == kInternalRootObject) { 1662e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ASSERT(retainers_count == 0); 1663e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return snapshot_->AddRootEntry(children_count); 1664e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object == kGcRootsObject) { 1665e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return snapshot_->AddGcRootsEntry(children_count, retainers_count); 16663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (object >= kFirstGcSubrootObject && object < kLastGcSubrootObject) { 16673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return snapshot_->AddGcSubrootEntry( 16683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetGcSubrootOrder(object), 16693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children_count, 16703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch retainers_count); 1671e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsJSFunction()) { 1672e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch JSFunction* func = JSFunction::cast(object); 1673e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch SharedFunctionInfo* shared = func->shared(); 16743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* name = shared->bound() ? "native_bind" : 16753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_->names()->GetName(String::cast(shared->name())); 1676e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1677e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kClosure, 16783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name, 1679e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1680e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1681e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsJSRegExp()) { 1682e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch JSRegExp* re = JSRegExp::cast(object); 1683e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1684e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kRegExp, 168544f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(re->Pattern()), 1686e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1687e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1688e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsJSObject()) { 1689e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1690e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kObject, 16913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "", 1692e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1693e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1694e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsString()) { 1695e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1696e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kString, 169744f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(String::cast(object)), 1698e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1699e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1700e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsCode()) { 1701e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1702e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kCode, 1703e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch "", 1704e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1705e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1706e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsSharedFunctionInfo()) { 1707e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch SharedFunctionInfo* shared = SharedFunctionInfo::cast(object); 1708e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1709e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kCode, 171044f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(String::cast(shared->name())), 1711e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1712e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1713e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsScript()) { 1714e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Script* script = Script::cast(object); 1715e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1716e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kCode, 1717e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch script->name()->IsString() ? 171844f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName( 171944f0eee88ff00398ff7f715fab053374d808c90dSteve Block String::cast(script->name())) 172044f0eee88ff00398ff7f715fab053374d808c90dSteve Block : "", 1721e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1722e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 17233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (object->IsGlobalContext()) { 17243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return AddEntry(object, 17253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry::kHidden, 17263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "system / GlobalContext", 17273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children_count, 17283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch retainers_count); 17293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if (object->IsContext()) { 17303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return AddEntry(object, 17313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry::kHidden, 17323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "system / Context", 17333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children_count, 17343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch retainers_count); 17353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (object->IsFixedArray() || 17363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch object->IsFixedDoubleArray() || 17373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch object->IsByteArray() || 17383fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch object->IsExternalArray()) { 17393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch const char* tag = objects_tags_.GetTag(object); 1740e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1741e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kArray, 17423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch tag != NULL ? tag : "", 1743e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1744e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1745e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } else if (object->IsHeapNumber()) { 1746e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1747e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kHeapNumber, 1748e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch "number", 1749e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1750e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1751e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 1752e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return AddEntry(object, 1753e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::kHidden, 17548b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch GetSystemEntryName(object), 1755e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1756e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1757e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 17587f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 1759756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1760e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* V8HeapExplorer::AddEntry(HeapObject* object, 1761e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry::Type type, 1762e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const char* name, 1763e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int children_count, 1764e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int retainers_count) { 1765e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return snapshot_->AddEntry(type, 1766e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch name, 1767e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch collection_->GetObjectId(object->address()), 1768e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch object->Size(), 1769e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch children_count, 1770e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainers_count); 1771e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 17728a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 1773b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 17743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass GcSubrootsEnumerator : public ObjectVisitor { 17753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 17763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GcSubrootsEnumerator( 17773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotFillerInterface* filler, V8HeapExplorer* explorer) 17783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : filler_(filler), 17793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explorer_(explorer), 17803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch previous_object_count_(0), 17813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch object_count_(0) { 17823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 17833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void VisitPointers(Object** start, Object** end) { 17843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch object_count_ += end - start; 17853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 17863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void Synchronize(VisitorSynchronization::SyncTag tag) { 17873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Skip empty subroots. 17883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (previous_object_count_ != object_count_) { 17893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch previous_object_count_ = object_count_; 17903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->AddEntry(V8HeapExplorer::GetNthGcSubrootObject(tag), explorer_); 17913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 17923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 17933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 17943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotFillerInterface* filler_; 17953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch V8HeapExplorer* explorer_; 17963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t previous_object_count_; 17973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t object_count_; 17983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 17993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 18003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1801e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::AddRootEntries(SnapshotFillerInterface* filler) { 180244f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler->AddEntry(kInternalRootObject, this); 180344f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler->AddEntry(kGcRootsObject, this); 18043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GcSubrootsEnumerator enumerator(filler, this); 18053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch heap_->IterateRoots(&enumerator, VISIT_ALL); 1806756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1807756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1808756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 18098b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdochconst char* V8HeapExplorer::GetSystemEntryName(HeapObject* object) { 18108b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch switch (object->map()->instance_type()) { 18118b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch case MAP_TYPE: return "system / Map"; 18128b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch case JS_GLOBAL_PROPERTY_CELL_TYPE: return "system / JSGlobalPropertyCell"; 1813257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch case FOREIGN_TYPE: return "system / Foreign"; 18148b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch case ODDBALL_TYPE: return "system / Oddball"; 18158b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch#define MAKE_STRUCT_CASE(NAME, Name, name) \ 18168b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch case NAME##_TYPE: return "system / "#Name; 18178b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch STRUCT_LIST(MAKE_STRUCT_CASE) 18188b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch#undef MAKE_STRUCT_CASE 18198b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch default: return "system"; 18208b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } 18218b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch} 18228b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 18238b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch 18243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochint V8HeapExplorer::EstimateObjectsCount(HeapIterator* iterator) { 1825e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int objects_count = 0; 18263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HeapObject* obj = iterator->next(); 1827e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch obj != NULL; 18283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch obj = iterator->next()) { 18293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch objects_count++; 18303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1831e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return objects_count; 1832756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 1833756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1834756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1835756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrickclass IndexedReferencesExtractor : public ObjectVisitor { 1836756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick public: 1837e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch IndexedReferencesExtractor(V8HeapExplorer* generator, 1838756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapObject* parent_obj, 18398b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch HeapEntry* parent_entry) 1840756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick : generator_(generator), 1841756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_obj_(parent_obj), 1842756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_(parent_entry), 1843756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick next_index_(1) { 1844756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 1845756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick void VisitPointers(Object** start, Object** end) { 18468a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang for (Object** p = start; p < end; p++) { 184744f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (CheckVisitedAndUnmark(p)) continue; 184844f0eee88ff00398ff7f715fab053374d808c90dSteve Block generator_->SetHiddenReference(parent_obj_, parent_, next_index_++, *p); 18498a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 1850756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 185144f0eee88ff00398ff7f715fab053374d808c90dSteve Block static void MarkVisitedField(HeapObject* obj, int offset) { 185244f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (offset < 0) return; 185344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Address field = obj->address() + offset; 185444f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(!Memory::Object_at(field)->IsFailure()); 185544f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(Memory::Object_at(field)->IsHeapObject()); 185644f0eee88ff00398ff7f715fab053374d808c90dSteve Block *field |= kFailureTag; 185744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 18583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 1859756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick private: 186044f0eee88ff00398ff7f715fab053374d808c90dSteve Block bool CheckVisitedAndUnmark(Object** field) { 18618b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch if ((*field)->IsFailure()) { 186244f0eee88ff00398ff7f715fab053374d808c90dSteve Block intptr_t untagged = reinterpret_cast<intptr_t>(*field) & ~kFailureTagMask; 186344f0eee88ff00398ff7f715fab053374d808c90dSteve Block *field = reinterpret_cast<Object*>(untagged | kHeapObjectTag); 186444f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT((*field)->IsHeapObject()); 186544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return true; 186644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 186744f0eee88ff00398ff7f715fab053374d808c90dSteve Block return false; 186844f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 1869e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch V8HeapExplorer* generator_; 1870756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapObject* parent_obj_; 1871756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* parent_; 1872756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick int next_index_; 1873756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick}; 1874756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1875756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 1876e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::ExtractReferences(HeapObject* obj) { 1877756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* entry = GetEntry(obj); 1878756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (entry == NULL) return; // No interest in this object. 18797f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 18803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch bool extract_indexed_refs = true; 18818a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (obj->IsJSGlobalProxy()) { 18828a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // We need to reference JS global objects from snapshot's root. 18838a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // We use JSGlobalProxy because this is what embedder (e.g. browser) 18848a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // uses for the global object. 18858a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang JSGlobalProxy* proxy = JSGlobalProxy::cast(obj); 18868a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang SetRootShortcutReference(proxy->map()->prototype()); 18878a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } else if (obj->IsJSObject()) { 18887f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch JSObject* js_obj = JSObject::cast(obj); 18897f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ExtractClosureReferences(js_obj, entry); 18907f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ExtractPropertyReferences(js_obj, entry); 18917f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ExtractElementReferences(js_obj, entry); 1892f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch ExtractInternalReferences(js_obj, entry); 1893756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick SetPropertyReference( 18943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj, entry, heap_->Proto_symbol(), js_obj->GetPrototype()); 1895f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch if (obj->IsJSFunction()) { 189644f0eee88ff00398ff7f715fab053374d808c90dSteve Block JSFunction* js_fun = JSFunction::cast(js_obj); 189744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* proto_or_map = js_fun->prototype_or_initial_map(); 189844f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (!proto_or_map->IsTheHole()) { 189944f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (!proto_or_map->IsMap()) { 190044f0eee88ff00398ff7f715fab053374d808c90dSteve Block SetPropertyReference( 190144f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj, entry, 19023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch heap_->prototype_symbol(), proto_or_map, 19033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch NULL, 190444f0eee88ff00398ff7f715fab053374d808c90dSteve Block JSFunction::kPrototypeOrInitialMapOffset); 190544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 190644f0eee88ff00398ff7f715fab053374d808c90dSteve Block SetPropertyReference( 190744f0eee88ff00398ff7f715fab053374d808c90dSteve Block obj, entry, 19083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch heap_->prototype_symbol(), js_fun->prototype()); 190944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 1910f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch } 19113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SharedFunctionInfo* shared_info = js_fun->shared(); 19123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // JSFunction has either bindings or literals and never both. 19133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool bound = shared_info->bound(); 19143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch TagObject(js_fun->literals_or_bindings(), 19153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bound ? "(function bindings)" : "(function literals)"); 19163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetInternalReference(js_fun, entry, 19173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bound ? "bindings" : "literals", 19183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch js_fun->literals_or_bindings(), 19193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction::kLiteralsOffset); 19205d4cdbf7a67d3662fa0bee4efdb7edd8daec9b0bBen Murdoch SetInternalReference(js_fun, entry, 19213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "shared", shared_info, 19228b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch JSFunction::kSharedFunctionInfoOffset); 19233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(js_fun->unchecked_context(), "(context)"); 19248b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(js_fun, entry, 19258b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "context", js_fun->unchecked_context(), 19268b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch JSFunction::kContextOffset); 19273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = JSFunction::kNonWeakFieldsEndOffset; 19283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i < JSFunction::kSize; 19293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i += kPointerSize) { 19303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetWeakReference(js_fun, entry, i, *HeapObject::RawField(js_fun, i), i); 19313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1932f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch } 19333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(js_obj->properties(), "(object properties)"); 19348b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19358b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "properties", js_obj->properties(), 19368b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch JSObject::kPropertiesOffset); 19373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(js_obj->elements(), "(object elements)"); 19388b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19398b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "elements", js_obj->elements(), 19408b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch JSObject::kElementsOffset); 19417f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } else if (obj->IsString()) { 19427f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (obj->IsConsString()) { 19437f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ConsString* cs = ConsString::cast(obj); 19448a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang SetInternalReference(obj, entry, 1, cs->first()); 19458a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang SetInternalReference(obj, entry, 2, cs->second()); 19467f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 19473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (obj->IsSlicedString()) { 19483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SlicedString* ss = SlicedString::cast(obj); 19493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetInternalReference(obj, entry, "parent", ss->parent()); 19503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 19513fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch extract_indexed_refs = false; 19523fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (obj->IsGlobalContext()) { 19533fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Context* context = Context::cast(obj); 19543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(context->jsfunction_result_caches(), 19553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "(context func. result caches)"); 19563fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(context->normalized_map_cache(), "(context norm. map cache)"); 19573fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(context->runtime_context(), "(runtime context)"); 19583fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(context->data(), "(context data)"); 19593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = Context::FIRST_WEAK_SLOT; 19603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i < Context::GLOBAL_CONTEXT_SLOTS; 19613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ++i) { 19623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetWeakReference(obj, entry, 19633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i, context->get(i), 19643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FixedArray::OffsetOfElementAt(i)); 19653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 19668b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else if (obj->IsMap()) { 19678b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Map* map = Map::cast(obj); 19688b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19698b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "prototype", map->prototype(), Map::kPrototypeOffset); 19708b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19718b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "constructor", map->constructor(), 19728b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Map::kConstructorOffset); 1973257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch if (!map->instance_descriptors()->IsEmpty()) { 19743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(map->instance_descriptors(), "(map descriptors)"); 1975257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch SetInternalReference(obj, entry, 1976257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch "descriptors", map->instance_descriptors(), 1977257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch Map::kInstanceDescriptorsOrBitField3Offset); 1978257744e915dfc84d6d07a6b2accf8402d9ffc708Ben Murdoch } 19793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (map->prototype_transitions() != heap_->empty_fixed_array()) { 19803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch TagObject(map->prototype_transitions(), "(prototype transitions)"); 19813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetInternalReference(obj, 19823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry, 19833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "prototype_transitions", 19843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch map->prototype_transitions(), 19853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Map::kPrototypeTransitionsOffset); 19863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 19878b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19888b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "code_cache", map->code_cache(), 19898b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch Map::kCodeCacheOffset); 19908b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch } else if (obj->IsSharedFunctionInfo()) { 19918b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SharedFunctionInfo* shared = SharedFunctionInfo::cast(obj); 19928b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19938b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "name", shared->name(), 19948b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SharedFunctionInfo::kNameOffset); 19958b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 19968b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "code", shared->unchecked_code(), 19978b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SharedFunctionInfo::kCodeOffset); 19983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(shared->scope_info(), "(function scope info)"); 19993fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "scope_info", shared->scope_info(), 20013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SharedFunctionInfo::kScopeInfoOffset); 20028b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 20038b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "instance_class_name", shared->instance_class_name(), 20048b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SharedFunctionInfo::kInstanceClassNameOffset); 20058b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, 20068b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "script", shared->script(), 20078b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SharedFunctionInfo::kScriptOffset); 20083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetWeakReference(obj, entry, 20093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1, shared->initial_map(), 20103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SharedFunctionInfo::kInitialMapOffset); 20113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (obj->IsScript()) { 20123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script* script = Script::cast(obj); 20133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "source", script->source(), 20153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script::kSourceOffset); 20163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "name", script->name(), 20183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script::kNameOffset); 20193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "data", script->data(), 20213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script::kDataOffset); 20223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "context_data", script->context_data(), 20243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script::kContextOffset); 20253fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(script->line_ends(), "(script line ends)"); 20263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "line_ends", script->line_ends(), 20283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Script::kLineEndsOffset); 20293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (obj->IsCodeCache()) { 20303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch CodeCache* code_cache = CodeCache::cast(obj); 20313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(code_cache->default_cache(), "(default code cache)"); 20323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20333fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "default_cache", code_cache->default_cache(), 20343fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch CodeCache::kDefaultCacheOffset); 20353fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(code_cache->normal_type_cache(), "(code type cache)"); 20363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch SetInternalReference(obj, entry, 20373fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch "type_cache", code_cache->normal_type_cache(), 20383fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch CodeCache::kNormalTypeCacheOffset); 20393fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } else if (obj->IsCode()) { 20403fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Code* code = Code::cast(obj); 20413fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(code->unchecked_relocation_info(), "(code relocation info)"); 20423fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch TagObject(code->unchecked_deoptimization_data(), "(code deopt data)"); 20433fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 20443fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (extract_indexed_refs) { 20458b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch SetInternalReference(obj, entry, "map", obj->map(), HeapObject::kMapOffset); 2046756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick IndexedReferencesExtractor refs_extractor(this, obj, entry); 20477f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch obj->Iterate(&refs_extractor); 20487f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 20497f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 20507f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 20517f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 2052e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::ExtractClosureReferences(JSObject* js_obj, 2053e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* entry) { 20543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!js_obj->IsJSFunction()) return; 20553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 20563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch JSFunction* func = JSFunction::cast(js_obj); 20573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Context* context = func->context(); 20583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ScopeInfo* scope_info = context->closure()->shared()->scope_info(); 20593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 20603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (func->shared()->bound()) { 20613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FixedArray* bindings = func->function_bindings(); 20623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetNativeBindReference(js_obj, entry, "bound_this", 20633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bindings->get(JSFunction::kBoundThisIndex)); 20643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetNativeBindReference(js_obj, entry, "bound_function", 20653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bindings->get(JSFunction::kBoundFunctionIndex)); 20663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = JSFunction::kBoundArgumentsStartIndex; 20673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i < bindings->length(); i++) { 20683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* reference_name = collection_->names()->GetFormatted( 20693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "bound_argument_%d", 20703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch i - JSFunction::kBoundArgumentsStartIndex); 20713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetNativeBindReference(js_obj, entry, reference_name, 20723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bindings->get(i)); 20733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 20743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 20753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Add context allocated locals. 20763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int context_locals = scope_info->ContextLocalCount(); 20773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < context_locals; ++i) { 20783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch String* local_name = scope_info->ContextLocalName(i); 20793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int idx = Context::MIN_CONTEXT_SLOTS + i; 20803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetClosureReference(js_obj, entry, local_name, context->get(idx)); 20813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 20823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 20833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Add function variable. 20843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (scope_info->HasFunctionName()) { 20853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch String* name = scope_info->FunctionName(); 20863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int idx = Context::MIN_CONTEXT_SLOTS + context_locals; 20873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 20883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch VariableMode mode; 20893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(idx == scope_info->FunctionContextSlotIndex(name, &mode)); 20903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 20913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetClosureReference(js_obj, entry, name, context->get(idx)); 20927f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 20937f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 20947f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 20957f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 20967f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 2097e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::ExtractPropertyReferences(JSObject* js_obj, 2098e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* entry) { 20997f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (js_obj->HasFastProperties()) { 21007f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch DescriptorArray* descs = js_obj->map()->instance_descriptors(); 21017f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch for (int i = 0; i < descs->number_of_descriptors(); i++) { 21027f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch switch (descs->GetType(i)) { 21037f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch case FIELD: { 21047f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch int index = descs->GetFieldIndex(i); 210544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (index < js_obj->map()->inobject_properties()) { 210644f0eee88ff00398ff7f715fab053374d808c90dSteve Block SetPropertyReference( 210744f0eee88ff00398ff7f715fab053374d808c90dSteve Block js_obj, entry, 210844f0eee88ff00398ff7f715fab053374d808c90dSteve Block descs->GetKey(i), js_obj->InObjectPropertyAt(index), 21093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch NULL, 211044f0eee88ff00398ff7f715fab053374d808c90dSteve Block js_obj->GetInObjectPropertyOffset(index)); 211144f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 211244f0eee88ff00398ff7f715fab053374d808c90dSteve Block SetPropertyReference( 211344f0eee88ff00398ff7f715fab053374d808c90dSteve Block js_obj, entry, 211444f0eee88ff00398ff7f715fab053374d808c90dSteve Block descs->GetKey(i), js_obj->FastPropertyAt(index)); 211544f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 21167f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch break; 21177f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21187f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch case CONSTANT_FUNCTION: 2119756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick SetPropertyReference( 212044f0eee88ff00398ff7f715fab053374d808c90dSteve Block js_obj, entry, 212144f0eee88ff00398ff7f715fab053374d808c90dSteve Block descs->GetKey(i), descs->GetConstantFunction(i)); 21227f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch break; 21233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case CALLBACKS: { 21243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* callback_obj = descs->GetValue(i); 21253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (callback_obj->IsAccessorPair()) { 21263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch AccessorPair* accessors = AccessorPair::cast(callback_obj); 21273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (Object* getter = accessors->getter()) { 21283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetPropertyReference(js_obj, entry, descs->GetKey(i), 21293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch getter, "get-%s"); 21303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 21313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (Object* setter = accessors->setter()) { 21323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetPropertyReference(js_obj, entry, descs->GetKey(i), 21333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch setter, "set-%s"); 21343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 21353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 21363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 21373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 21383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case NORMAL: // only in slow mode 21393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case HANDLER: // only in lookup results, not in descriptors 21403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case INTERCEPTOR: // only in lookup results, not in descriptors 21413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case MAP_TRANSITION: // we do not care about transitions here... 21423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case ELEMENTS_TRANSITION: 21433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case CONSTANT_TRANSITION: 21443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case NULL_DESCRIPTOR: // ... and not about "holes" 21453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 21467f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21477f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21487f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } else { 21497f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch StringDictionary* dictionary = js_obj->property_dictionary(); 21507f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch int length = dictionary->Capacity(); 21517f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch for (int i = 0; i < length; ++i) { 21527f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch Object* k = dictionary->KeyAt(i); 21537f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (dictionary->IsKey(k)) { 21548a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang Object* target = dictionary->ValueAt(i); 2155756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick SetPropertyReference( 21568a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang js_obj, entry, String::cast(k), target); 21578a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // We assume that global objects can only have slow properties. 21588a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (target->IsJSGlobalPropertyCell()) { 21598a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang SetPropertyShortcutReference(js_obj, 21608a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang entry, 21618a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang String::cast(k), 21628a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang JSGlobalPropertyCell::cast( 21638a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang target)->value()); 21648a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 21657f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21667f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21677f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21687f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 21697f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 21707f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 2171e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::ExtractElementReferences(JSObject* js_obj, 2172e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* entry) { 21737f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (js_obj->HasFastElements()) { 21747f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch FixedArray* elements = FixedArray::cast(js_obj->elements()); 21757f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch int length = js_obj->IsJSArray() ? 21767f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch Smi::cast(JSArray::cast(js_obj)->length())->value() : 21777f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch elements->length(); 21787f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch for (int i = 0; i < length; ++i) { 21797f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (!elements->get(i)->IsTheHole()) { 2180756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick SetElementReference(js_obj, entry, i, elements->get(i)); 21817f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21827f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21837f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } else if (js_obj->HasDictionaryElements()) { 2184c7cc028aaeedbbfa11c11d0b7b243b3d9e837ed9Ben Murdoch SeededNumberDictionary* dictionary = js_obj->element_dictionary(); 21857f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch int length = dictionary->Capacity(); 21867f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch for (int i = 0; i < length; ++i) { 21877f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch Object* k = dictionary->KeyAt(i); 21887f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch if (dictionary->IsKey(k)) { 21897f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch ASSERT(k->IsNumber()); 21907f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch uint32_t index = static_cast<uint32_t>(k->Number()); 2191756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick SetElementReference(js_obj, entry, index, dictionary->ValueAt(i)); 21927f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21937f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21947f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch } 21957f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch} 21967f4d5bd8c03935e2c0cd412e561b8fc5a6a880aeBen Murdoch 21973bec4d28b1f388dbc06a9c4276e1a03e86c52b04Ben Murdoch 2198e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::ExtractInternalReferences(JSObject* js_obj, 2199e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* entry) { 2200f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch int length = js_obj->GetInternalFieldCount(); 2201f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch for (int i = 0; i < length; ++i) { 2202f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch Object* o = js_obj->GetInternalField(i); 220344f0eee88ff00398ff7f715fab053374d808c90dSteve Block SetInternalReference( 220444f0eee88ff00398ff7f715fab053374d808c90dSteve Block js_obj, entry, i, o, js_obj->GetInternalFieldOffset(i)); 2205f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch } 2206f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 2207f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 2208f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 220969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen MurdochString* V8HeapExplorer::GetConstructorName(JSObject* object) { 22103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Heap* heap = object->GetHeap(); 22113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (object->IsJSFunction()) return heap->closure_symbol(); 221269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch String* constructor_name = object->constructor_name(); 22133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (constructor_name == heap->Object_symbol()) { 221469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // Look up an immediate "constructor" property, if it is a function, 221569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // return its name. This is for instances of binding objects, which 221669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // have prototype constructor type "Object". 221769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Object* constructor_prop = NULL; 22183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch LookupResult result(heap->isolate()); 22193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch object->LocalLookupRealNamedProperty(heap->constructor_symbol(), &result); 222069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (result.IsProperty()) { 222169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch constructor_prop = result.GetLazyValue(); 222269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 222369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (constructor_prop->IsJSFunction()) { 222469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch Object* maybe_name = JSFunction::cast(constructor_prop)->shared()->name(); 222569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (maybe_name->IsString()) { 222669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch String* name = String::cast(maybe_name); 222769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (name->length() > 0) return name; 222869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 222969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 223069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 223169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return object->constructor_name(); 223269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 223369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 223469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 2235e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen MurdochHeapEntry* V8HeapExplorer::GetEntry(Object* obj) { 2236e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!obj->IsHeapObject()) return NULL; 223744f0eee88ff00398ff7f715fab053374d808c90dSteve Block return filler_->FindOrAddEntry(obj, this); 2238e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 2239e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2240e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2241e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochclass RootsReferencesExtractor : public ObjectVisitor { 22423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 22433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch struct IndexTag { 22443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch IndexTag(int index, VisitorSynchronization::SyncTag tag) 22453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : index(index), tag(tag) { } 22463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int index; 22473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch VisitorSynchronization::SyncTag tag; 22483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch }; 22493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2250e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch public: 22513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RootsReferencesExtractor() 22523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : collecting_all_references_(false), 22533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch previous_reference_count_(0) { 2254e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 22553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2256e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void VisitPointers(Object** start, Object** end) { 22573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (collecting_all_references_) { 22583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (Object** p = start; p < end; p++) all_references_.Add(*p); 22593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 22603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (Object** p = start; p < end; p++) strong_references_.Add(*p); 22613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 2262e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 22633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 22643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void SetCollectingAllReferences() { collecting_all_references_ = true; } 22653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 22663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void FillReferences(V8HeapExplorer* explorer) { 22673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(strong_references_.length() <= all_references_.length()); 22683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < reference_tags_.length(); ++i) { 22693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explorer->SetGcRootsReference(reference_tags_[i].tag); 22703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int strong_index = 0, all_index = 0, tags_index = 0; 22723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (all_index < all_references_.length()) { 22733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (strong_index < strong_references_.length() && 22743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch strong_references_[strong_index] == all_references_[all_index]) { 22753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explorer->SetGcSubrootReference(reference_tags_[tags_index].tag, 22763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch false, 22773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch all_references_[all_index++]); 22783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ++strong_index; 22793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 22803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explorer->SetGcSubrootReference(reference_tags_[tags_index].tag, 22813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch true, 22823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch all_references_[all_index++]); 22833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (reference_tags_[tags_index].index == all_index) ++tags_index; 22853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 22883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch void Synchronize(VisitorSynchronization::SyncTag tag) { 22893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (collecting_all_references_ && 22903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch previous_reference_count_ != all_references_.length()) { 22913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch previous_reference_count_ = all_references_.length(); 22923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reference_tags_.Add(IndexTag(previous_reference_count_, tag)); 22933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 22953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2296e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch private: 22973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool collecting_all_references_; 22983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<Object*> strong_references_; 22993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<Object*> all_references_; 23003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int previous_reference_count_; 23013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<IndexTag> reference_tags_; 2302e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch}; 2303e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2304e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2305e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool V8HeapExplorer::IterateAndExtractReferences( 2306e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch SnapshotFillerInterface* filler) { 230785b71799222b55eb5dd74ea26efe0c64ab655c8cBen Murdoch HeapIterator iterator(HeapIterator::kFilterUnreachable); 23083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_ = filler; 2310e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch bool interrupted = false; 23113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2312e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Heap iteration with filtering must be finished in any case. 2313e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch for (HeapObject* obj = iterator.next(); 2314e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch obj != NULL; 2315e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch obj = iterator.next(), progress_->ProgressStep()) { 2316e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!interrupted) { 2317e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ExtractReferences(obj); 2318e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!progress_->ProgressReport(false)) interrupted = true; 2319e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2320e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2321e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (interrupted) { 2322e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch filler_ = NULL; 2323e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return false; 2324e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2325e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch SetRootGcRootsReference(); 23263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch RootsReferencesExtractor extractor; 23273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch heap_->IterateRoots(&extractor, VISIT_ONLY_STRONG); 23283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch extractor.SetCollectingAllReferences(); 23293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch heap_->IterateRoots(&extractor, VISIT_ALL); 23303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch extractor.FillReferences(this); 2331e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch filler_ = NULL; 2332e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return progress_->ProgressReport(false); 2333e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 2334e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2335e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 23363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochbool V8HeapExplorer::IterateAndSetObjectNames(SnapshotFillerInterface* filler) { 23373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapIterator iterator(HeapIterator::kFilterUnreachable); 23383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_ = filler; 23393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) { 23403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetObjectName(obj); 23413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 23423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return true; 23433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 23443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid V8HeapExplorer::SetObjectName(HeapObject* object) { 23473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!object->IsJSObject() || object->IsJSRegExp() || object->IsJSFunction()) { 23483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return; 23493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 23503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* name = collection_->names()->GetName( 23513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetConstructorName(JSObject::cast(object))); 23523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (object->IsJSGlobalObject()) { 23533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* tag = objects_tags_.GetTag(object); 23543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (tag != NULL) { 23553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name = collection_->names()->GetFormatted("%s / %s", name, tag); 23563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 23573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 23583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetEntry(object)->set_name(name); 23593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 23603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2362e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetClosureReference(HeapObject* parent_obj, 2363e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2364e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch String* reference_name, 2365e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object* child_obj) { 2366756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* child_entry = GetEntry(child_obj); 2367756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (child_entry != NULL) { 2368756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick filler_->SetNamedReference(HeapGraphEdge::kContextVariable, 2369756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_obj, 2370756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_entry, 237144f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(reference_name), 2372756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_obj, 2373756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_entry); 2374756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 2375756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 2376756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2377756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 23783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid V8HeapExplorer::SetNativeBindReference(HeapObject* parent_obj, 23793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* parent_entry, 23803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* reference_name, 23813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* child_obj) { 23823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* child_entry = GetEntry(child_obj); 23833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (child_entry != NULL) { 23843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetNamedReference(HeapGraphEdge::kShortcut, 23853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch parent_obj, 23863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch parent_entry, 23873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reference_name, 23883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child_obj, 23893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child_entry); 23903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 23913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 23923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 23933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2394e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetElementReference(HeapObject* parent_obj, 2395e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2396e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int index, 2397e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object* child_obj) { 2398756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* child_entry = GetEntry(child_obj); 2399756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (child_entry != NULL) { 24008a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang filler_->SetIndexedReference(HeapGraphEdge::kElement, 24018a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_obj, 24028a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_entry, 24038a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang index, 24048a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_obj, 24058a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_entry); 2406756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 2407756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 2408756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2409756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2410e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetInternalReference(HeapObject* parent_obj, 2411e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2412e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const char* reference_name, 241344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* child_obj, 241444f0eee88ff00398ff7f715fab053374d808c90dSteve Block int field_offset) { 2415756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* child_entry = GetEntry(child_obj); 2416756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (child_entry != NULL) { 2417756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick filler_->SetNamedReference(HeapGraphEdge::kInternal, 2418756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_obj, 2419756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_entry, 2420756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick reference_name, 2421756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_obj, 2422756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_entry); 242344f0eee88ff00398ff7f715fab053374d808c90dSteve Block IndexedReferencesExtractor::MarkVisitedField(parent_obj, field_offset); 2424756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 2425756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 2426756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2427756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2428e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetInternalReference(HeapObject* parent_obj, 2429e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2430e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int index, 243144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* child_obj, 243244f0eee88ff00398ff7f715fab053374d808c90dSteve Block int field_offset) { 2433f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch HeapEntry* child_entry = GetEntry(child_obj); 2434f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch if (child_entry != NULL) { 2435f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch filler_->SetNamedReference(HeapGraphEdge::kInternal, 2436f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch parent_obj, 2437f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch parent_entry, 243844f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(index), 2439f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch child_obj, 2440f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch child_entry); 244144f0eee88ff00398ff7f715fab053374d808c90dSteve Block IndexedReferencesExtractor::MarkVisitedField(parent_obj, field_offset); 24428a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 24438a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 24448a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 24458a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 2446e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetHiddenReference(HeapObject* parent_obj, 2447e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2448e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int index, 2449e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch Object* child_obj) { 24508a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapEntry* child_entry = GetEntry(child_obj); 24518a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (child_entry != NULL) { 24528a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang filler_->SetIndexedReference(HeapGraphEdge::kHidden, 24538a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_obj, 24548a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_entry, 24558a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang index, 24568a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_obj, 24578a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_entry); 2458f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch } 2459f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 2460f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 2461f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 24623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid V8HeapExplorer::SetWeakReference(HeapObject* parent_obj, 24633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* parent_entry, 24643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int index, 24653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* child_obj, 24663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int field_offset) { 24673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* child_entry = GetEntry(child_obj); 24683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (child_entry != NULL) { 24693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetIndexedReference(HeapGraphEdge::kWeak, 24703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch parent_obj, 24713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch parent_entry, 24723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch index, 24733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child_obj, 24743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child_entry); 24753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch IndexedReferencesExtractor::MarkVisitedField(parent_obj, field_offset); 24763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 24773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 24783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 24793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2480e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetPropertyReference(HeapObject* parent_obj, 2481e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2482e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch String* reference_name, 248344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* child_obj, 24843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* name_format_string, 248544f0eee88ff00398ff7f715fab053374d808c90dSteve Block int field_offset) { 2486756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* child_entry = GetEntry(child_obj); 2487756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick if (child_entry != NULL) { 2488f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch HeapGraphEdge::Type type = reference_name->length() > 0 ? 2489f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch HeapGraphEdge::kProperty : HeapGraphEdge::kInternal; 24903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* name = name_format_string != NULL ? 24913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_->names()->GetFormatted( 24923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name_format_string, 24933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch *reference_name->ToCString(DISALLOW_NULLS, 24943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ROBUST_STRING_TRAVERSAL)) : 24953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_->names()->GetName(reference_name); 24963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 2497f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch filler_->SetNamedReference(type, 2498756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_obj, 2499756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick parent_entry, 25003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch name, 2501756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_obj, 2502756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick child_entry); 250344f0eee88ff00398ff7f715fab053374d808c90dSteve Block IndexedReferencesExtractor::MarkVisitedField(parent_obj, field_offset); 25048a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 25058a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 25068a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 25078a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 250844f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid V8HeapExplorer::SetPropertyShortcutReference(HeapObject* parent_obj, 250944f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* parent_entry, 251044f0eee88ff00398ff7f715fab053374d808c90dSteve Block String* reference_name, 251144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* child_obj) { 25128a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapEntry* child_entry = GetEntry(child_obj); 25138a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (child_entry != NULL) { 25148a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang filler_->SetNamedReference(HeapGraphEdge::kShortcut, 25158a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_obj, 25168a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang parent_entry, 251744f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(reference_name), 25188a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_obj, 25198a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang child_entry); 2520756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick } 2521756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 2522756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2523756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2524e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetRootGcRootsReference() { 2525e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch filler_->SetIndexedAutoIndexReference( 2526e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapGraphEdge::kElement, 2527e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch kInternalRootObject, snapshot_->root(), 2528e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch kGcRootsObject, snapshot_->gc_roots()); 25298a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 25308a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 25318a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 2532e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid V8HeapExplorer::SetRootShortcutReference(Object* child_obj) { 2533756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick HeapEntry* child_entry = GetEntry(child_obj); 2534756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick ASSERT(child_entry != NULL); 2535e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch filler_->SetNamedAutoIndexReference( 2536e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapGraphEdge::kShortcut, 2537e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch kInternalRootObject, snapshot_->root(), 2538e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch child_obj, child_entry); 25398a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang} 25408a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 25418a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang 25423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid V8HeapExplorer::SetGcRootsReference(VisitorSynchronization::SyncTag tag) { 25433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetIndexedAutoIndexReference( 25443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapGraphEdge::kElement, 25453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch kGcRootsObject, snapshot_->gc_roots(), 25463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetNthGcSubrootObject(tag), snapshot_->gc_subroot(tag)); 25473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 25483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 25503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid V8HeapExplorer::SetGcSubrootReference( 25513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch VisitorSynchronization::SyncTag tag, bool is_weak, Object* child_obj) { 25528a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang HeapEntry* child_entry = GetEntry(child_obj); 25538a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang if (child_entry != NULL) { 2554e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch filler_->SetIndexedAutoIndexReference( 25553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch is_weak ? HeapGraphEdge::kWeak : HeapGraphEdge::kElement, 25563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetNthGcSubrootObject(tag), snapshot_->gc_subroot(tag), 2557e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch child_obj, child_entry); 25588a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang } 2559756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick} 2560756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 2561756813857a4c2a4d8ad2e805969d5768d3cf43a0Iain Merrick 25623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid V8HeapExplorer::TagObject(Object* obj, const char* tag) { 25633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (obj->IsHeapObject() && 25643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch !obj->IsOddball() && 25653fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj != heap_->raw_unchecked_empty_byte_array() && 25663fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj != heap_->raw_unchecked_empty_fixed_array() && 25673fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj != heap_->raw_unchecked_empty_descriptor_array()) { 25683fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch objects_tags_.SetTag(obj, tag); 25693fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25703fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 25713fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25723fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25733fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochclass GlobalObjectsEnumerator : public ObjectVisitor { 25743fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch public: 25753fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch virtual void VisitPointers(Object** start, Object** end) { 25763fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (Object** p = start; p < end; p++) { 25773fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if ((*p)->IsGlobalContext()) { 25783fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Context* context = Context::cast(*p); 25793fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch JSObject* proxy = context->global_proxy(); 25803fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (proxy->IsJSGlobalProxy()) { 25813fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Object* global = proxy->map()->prototype(); 25823fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (global->IsJSGlobalObject()) { 25833fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch objects_.Add(Handle<JSGlobalObject>(JSGlobalObject::cast(global))); 25843fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25853fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25863fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25873fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25883fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 25893fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch int count() { return objects_.length(); } 25903fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Handle<JSGlobalObject>& at(int i) { return objects_[i]; } 25913fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25923fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch private: 25933fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch List<Handle<JSGlobalObject> > objects_; 25943fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch}; 25953fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25963fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 25973fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch// Modifies heap. Must not be run during heap traversal. 25983fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdochvoid V8HeapExplorer::TagGlobalObjects() { 25993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HandleScope scope; 26003fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Isolate* isolate = Isolate::Current(); 26013fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch GlobalObjectsEnumerator enumerator; 26023fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch isolate->global_handles()->IterateAllRoots(&enumerator); 26033fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Handle<String> document_string = 26043fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch isolate->factory()->NewStringFromAscii(CStrVector("document")); 26053fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Handle<String> url_string = 26063fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch isolate->factory()->NewStringFromAscii(CStrVector("URL")); 26073fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch const char** urls = NewArray<const char*>(enumerator.count()); 26083fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (int i = 0, l = enumerator.count(); i < l; ++i) { 26093fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch urls[i] = NULL; 26103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HandleScope scope; 26113fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Handle<JSGlobalObject> global_obj = enumerator.at(i); 26123fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Object* obj_document; 26133fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (global_obj->GetProperty(*document_string)->ToObject(&obj_document) && 26143fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj_document->IsJSObject()) { 26153fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch JSObject* document = JSObject::cast(obj_document); 26163fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Object* obj_url; 26173fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch if (document->GetProperty(*url_string)->ToObject(&obj_url) && 26183fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch obj_url->IsString()) { 26193fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch urls[i] = collection_->names()->GetName(String::cast(obj_url)); 26203fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 26213fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 26223fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 26233fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 26243fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch AssertNoAllocation no_allocation; 26253fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch for (int i = 0, l = enumerator.count(); i < l; ++i) { 26263fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch objects_tags_.SetTag(*enumerator.at(i), urls[i]); 26273fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch } 26283fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 26293fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch DeleteArray(urls); 26303fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch} 26313fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 26323fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 263344f0eee88ff00398ff7f715fab053374d808c90dSteve Blockclass GlobalHandlesExtractor : public ObjectVisitor { 263444f0eee88ff00398ff7f715fab053374d808c90dSteve Block public: 263544f0eee88ff00398ff7f715fab053374d808c90dSteve Block explicit GlobalHandlesExtractor(NativeObjectsExplorer* explorer) 263644f0eee88ff00398ff7f715fab053374d808c90dSteve Block : explorer_(explorer) {} 263744f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual ~GlobalHandlesExtractor() {} 263844f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void VisitPointers(Object** start, Object** end) { 263944f0eee88ff00398ff7f715fab053374d808c90dSteve Block UNREACHABLE(); 264044f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 264144f0eee88ff00398ff7f715fab053374d808c90dSteve Block virtual void VisitEmbedderReference(Object** p, uint16_t class_id) { 264244f0eee88ff00398ff7f715fab053374d808c90dSteve Block explorer_->VisitSubtreeWrapper(p, class_id); 264344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 264444f0eee88ff00398ff7f715fab053374d808c90dSteve Block private: 264544f0eee88ff00398ff7f715fab053374d808c90dSteve Block NativeObjectsExplorer* explorer_; 264644f0eee88ff00398ff7f715fab053374d808c90dSteve Block}; 264744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 26483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass BasicHeapEntriesAllocator : public HeapEntriesAllocator { 26503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 26513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch BasicHeapEntriesAllocator( 26523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapSnapshot* snapshot, 26533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry::Type entries_type) 26543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : snapshot_(snapshot), 26553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_(snapshot_->collection()), 26563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entries_type_(entries_type) { 26573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 26583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual HeapEntry* AllocateEntry( 26593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapThing ptr, int children_count, int retainers_count); 26603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 26613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapSnapshot* snapshot_; 26623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapSnapshotsCollection* collection_; 26633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry::Type entries_type_; 26643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 26653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 26673ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapEntry* BasicHeapEntriesAllocator::AllocateEntry( 26683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapThing ptr, int children_count, int retainers_count) { 26693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch v8::RetainedObjectInfo* info = reinterpret_cast<v8::RetainedObjectInfo*>(ptr); 26703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t elements = info->GetElementCount(); 26713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t size = info->GetSizeInBytes(); 26723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return snapshot_->AddEntry( 26733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entries_type_, 26743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch elements != -1 ? 26753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_->names()->GetFormatted( 26763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "%s / %" V8_PTR_PREFIX "d entries", 26773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch info->GetLabel(), 26783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch info->GetElementCount()) : 26793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch collection_->names()->GetCopy(info->GetLabel()), 26803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObjectsMap::GenerateId(info), 26813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch size != -1 ? static_cast<int>(size) : 0, 26823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children_count, 26833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch retainers_count); 26843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 268544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 268644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 268744f0eee88ff00398ff7f715fab053374d808c90dSteve BlockNativeObjectsExplorer::NativeObjectsExplorer( 268844f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapSnapshot* snapshot, SnapshottingProgressReportingInterface* progress) 268944f0eee88ff00398ff7f715fab053374d808c90dSteve Block : snapshot_(snapshot), 269044f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_(snapshot_->collection()), 269144f0eee88ff00398ff7f715fab053374d808c90dSteve Block progress_(progress), 269244f0eee88ff00398ff7f715fab053374d808c90dSteve Block embedder_queried_(false), 269344f0eee88ff00398ff7f715fab053374d808c90dSteve Block objects_by_info_(RetainedInfosMatch), 26943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch native_groups_(StringsMatch), 269544f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler_(NULL) { 26963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch synthetic_entries_allocator_ = 26973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new BasicHeapEntriesAllocator(snapshot, HeapEntry::kSynthetic); 26983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch native_entries_allocator_ = 26993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new BasicHeapEntriesAllocator(snapshot, HeapEntry::kNative); 270044f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 270144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 270244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 270344f0eee88ff00398ff7f715fab053374d808c90dSteve BlockNativeObjectsExplorer::~NativeObjectsExplorer() { 270444f0eee88ff00398ff7f715fab053374d808c90dSteve Block for (HashMap::Entry* p = objects_by_info_.Start(); 270544f0eee88ff00398ff7f715fab053374d808c90dSteve Block p != NULL; 270644f0eee88ff00398ff7f715fab053374d808c90dSteve Block p = objects_by_info_.Next(p)) { 270744f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::RetainedObjectInfo* info = 270844f0eee88ff00398ff7f715fab053374d808c90dSteve Block reinterpret_cast<v8::RetainedObjectInfo*>(p->key); 270944f0eee88ff00398ff7f715fab053374d808c90dSteve Block info->Dispose(); 271044f0eee88ff00398ff7f715fab053374d808c90dSteve Block List<HeapObject*>* objects = 271144f0eee88ff00398ff7f715fab053374d808c90dSteve Block reinterpret_cast<List<HeapObject*>* >(p->value); 271244f0eee88ff00398ff7f715fab053374d808c90dSteve Block delete objects; 271344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 27143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HashMap::Entry* p = native_groups_.Start(); 27153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch p != NULL; 27163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch p = native_groups_.Next(p)) { 271744f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::RetainedObjectInfo* info = 27183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<v8::RetainedObjectInfo*>(p->value); 27193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch info->Dispose(); 272044f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 27213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch delete synthetic_entries_allocator_; 27223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch delete native_entries_allocator_; 272344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 272444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 272544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 272644f0eee88ff00398ff7f715fab053374d808c90dSteve Blockint NativeObjectsExplorer::EstimateObjectsCount() { 272744f0eee88ff00398ff7f715fab053374d808c90dSteve Block FillRetainedObjects(); 272844f0eee88ff00398ff7f715fab053374d808c90dSteve Block return objects_by_info_.occupancy(); 272944f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 273044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 273144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 273244f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid NativeObjectsExplorer::FillRetainedObjects() { 273344f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (embedder_queried_) return; 273444f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 273544f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Record objects that are joined into ObjectGroups. 273644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap()->CallGlobalGCPrologueCallback(); 273744f0eee88ff00398ff7f715fab053374d808c90dSteve Block List<ObjectGroup*>* groups = isolate->global_handles()->object_groups(); 273844f0eee88ff00398ff7f715fab053374d808c90dSteve Block for (int i = 0; i < groups->length(); ++i) { 273944f0eee88ff00398ff7f715fab053374d808c90dSteve Block ObjectGroup* group = groups->at(i); 274044f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (group->info_ == NULL) continue; 274144f0eee88ff00398ff7f715fab053374d808c90dSteve Block List<HeapObject*>* list = GetListMaybeDisposeInfo(group->info_); 27428b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch for (size_t j = 0; j < group->length_; ++j) { 274344f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapObject* obj = HeapObject::cast(*group->objects_[j]); 274444f0eee88ff00398ff7f715fab053374d808c90dSteve Block list->Add(obj); 274544f0eee88ff00398ff7f715fab053374d808c90dSteve Block in_groups_.Insert(obj); 274644f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 274744f0eee88ff00398ff7f715fab053374d808c90dSteve Block group->info_ = NULL; // Acquire info object ownership. 274844f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 274944f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->RemoveObjectGroups(); 275044f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap()->CallGlobalGCEpilogueCallback(); 275144f0eee88ff00398ff7f715fab053374d808c90dSteve Block // Record objects that are not in ObjectGroups, but have class ID. 275244f0eee88ff00398ff7f715fab053374d808c90dSteve Block GlobalHandlesExtractor extractor(this); 275344f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->global_handles()->IterateAllRootsWithClassIds(&extractor); 275444f0eee88ff00398ff7f715fab053374d808c90dSteve Block embedder_queried_ = true; 275544f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 275644f0eee88ff00398ff7f715fab053374d808c90dSteve Block 27573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid NativeObjectsExplorer::FillImplicitReferences() { 27583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Isolate* isolate = Isolate::Current(); 27593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<ImplicitRefGroup*>* groups = 27603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch isolate->global_handles()->implicit_ref_groups(); 27613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < groups->length(); ++i) { 27623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ImplicitRefGroup* group = groups->at(i); 27633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObject* parent = *group->parent_; 27643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* parent_entry = 27653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(parent, native_entries_allocator_); 27663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(parent_entry != NULL); 27673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object*** children = group->children_; 27683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (size_t j = 0; j < group->length_; ++j) { 27693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* child = *children[j]; 27703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* child_entry = 27713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(child, native_entries_allocator_); 27723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetNamedReference( 27733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapGraphEdge::kInternal, 27743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch parent, parent_entry, 27753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "native", 27763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child, child_entry); 27773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 27793ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 278044f0eee88ff00398ff7f715fab053374d808c90dSteve Block 278144f0eee88ff00398ff7f715fab053374d808c90dSteve BlockList<HeapObject*>* NativeObjectsExplorer::GetListMaybeDisposeInfo( 278244f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::RetainedObjectInfo* info) { 278344f0eee88ff00398ff7f715fab053374d808c90dSteve Block HashMap::Entry* entry = 278444f0eee88ff00398ff7f715fab053374d808c90dSteve Block objects_by_info_.Lookup(info, InfoHash(info), true); 278544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (entry->value != NULL) { 278644f0eee88ff00398ff7f715fab053374d808c90dSteve Block info->Dispose(); 278744f0eee88ff00398ff7f715fab053374d808c90dSteve Block } else { 278844f0eee88ff00398ff7f715fab053374d808c90dSteve Block entry->value = new List<HeapObject*>(4); 278944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 279044f0eee88ff00398ff7f715fab053374d808c90dSteve Block return reinterpret_cast<List<HeapObject*>* >(entry->value); 279144f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 279244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 279344f0eee88ff00398ff7f715fab053374d808c90dSteve Block 279444f0eee88ff00398ff7f715fab053374d808c90dSteve Blockbool NativeObjectsExplorer::IterateAndExtractReferences( 279544f0eee88ff00398ff7f715fab053374d808c90dSteve Block SnapshotFillerInterface* filler) { 279644f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler_ = filler; 279744f0eee88ff00398ff7f715fab053374d808c90dSteve Block FillRetainedObjects(); 27983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FillImplicitReferences(); 27993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (EstimateObjectsCount() > 0) { 28003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HashMap::Entry* p = objects_by_info_.Start(); 28013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch p != NULL; 28023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch p = objects_by_info_.Next(p)) { 28033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch v8::RetainedObjectInfo* info = 28043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<v8::RetainedObjectInfo*>(p->key); 28053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetNativeRootReference(info); 28063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<HeapObject*>* objects = 28073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch reinterpret_cast<List<HeapObject*>* >(p->value); 28083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < objects->length(); ++i) { 28093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetWrapperNativeReferences(objects->at(i), info); 28103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 281144f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 28123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetRootNativeRootsReference(); 281344f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 281444f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler_ = NULL; 281544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return true; 281644f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 281744f0eee88ff00398ff7f715fab053374d808c90dSteve Block 281844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 28193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochclass NativeGroupRetainedObjectInfo : public v8::RetainedObjectInfo { 28203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch public: 28213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch explicit NativeGroupRetainedObjectInfo(const char* label) 28223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : disposed_(false), 28233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch hash_(reinterpret_cast<intptr_t>(label)), 28243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch label_(label) { 28253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 28263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual ~NativeGroupRetainedObjectInfo() {} 28283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual void Dispose() { 28293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CHECK(!disposed_); 28303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch disposed_ = true; 28313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch delete this; 28323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 28333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual bool IsEquivalent(RetainedObjectInfo* other) { 28343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return hash_ == other->GetHash() && !strcmp(label_, other->GetLabel()); 28353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 28363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual intptr_t GetHash() { return hash_; } 28373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch virtual const char* GetLabel() { return label_; } 28383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch private: 28403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool disposed_; 28413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch intptr_t hash_; 28423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* label_; 28433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 28443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28463ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochNativeGroupRetainedObjectInfo* NativeObjectsExplorer::FindOrAddGroupInfo( 28473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* label) { 28483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* label_copy = collection_->names()->GetCopy(label); 28493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch uint32_t hash = HashSequentialString(label_copy, 28503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<int>(strlen(label_copy)), 28513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HEAP->HashSeed()); 28523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HashMap::Entry* entry = native_groups_.Lookup(const_cast<char*>(label_copy), 28533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch hash, true); 28543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (entry->value == NULL) 28553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->value = new NativeGroupRetainedObjectInfo(label); 28563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return static_cast<NativeGroupRetainedObjectInfo*>(entry->value); 28573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 28583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 28593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 286044f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid NativeObjectsExplorer::SetNativeRootReference( 286144f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::RetainedObjectInfo* info) { 28623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* child_entry = 28633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(info, native_entries_allocator_); 286444f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(child_entry != NULL); 28653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch NativeGroupRetainedObjectInfo* group_info = 28663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FindOrAddGroupInfo(info->GetGroupLabel()); 28673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* group_entry = 28683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(group_info, synthetic_entries_allocator_); 28693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetNamedAutoIndexReference( 28703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapGraphEdge::kInternal, 28713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch group_info, group_entry, 287244f0eee88ff00398ff7f715fab053374d808c90dSteve Block info, child_entry); 287344f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 287444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 287544f0eee88ff00398ff7f715fab053374d808c90dSteve Block 287644f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid NativeObjectsExplorer::SetWrapperNativeReferences( 287744f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapObject* wrapper, v8::RetainedObjectInfo* info) { 287844f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* wrapper_entry = filler_->FindEntry(wrapper); 287944f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(wrapper_entry != NULL); 28803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* info_entry = 28813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(info, native_entries_allocator_); 288244f0eee88ff00398ff7f715fab053374d808c90dSteve Block ASSERT(info_entry != NULL); 288344f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler_->SetNamedReference(HeapGraphEdge::kInternal, 288444f0eee88ff00398ff7f715fab053374d808c90dSteve Block wrapper, wrapper_entry, 28858b112d2025046f85ef7f6be087c6129c872ebad2Ben Murdoch "native", 288644f0eee88ff00398ff7f715fab053374d808c90dSteve Block info, info_entry); 288744f0eee88ff00398ff7f715fab053374d808c90dSteve Block filler_->SetIndexedAutoIndexReference(HeapGraphEdge::kElement, 288844f0eee88ff00398ff7f715fab053374d808c90dSteve Block info, info_entry, 288944f0eee88ff00398ff7f715fab053374d808c90dSteve Block wrapper, wrapper_entry); 289044f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 289144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 289244f0eee88ff00398ff7f715fab053374d808c90dSteve Block 28933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid NativeObjectsExplorer::SetRootNativeRootsReference() { 28943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (HashMap::Entry* entry = native_groups_.Start(); 28953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry; 28963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry = native_groups_.Next(entry)) { 28973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch NativeGroupRetainedObjectInfo* group_info = 28983ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static_cast<NativeGroupRetainedObjectInfo*>(entry->value); 28993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* group_entry = 29003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->FindOrAddEntry(group_info, native_entries_allocator_); 29013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(group_entry != NULL); 29023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch filler_->SetIndexedAutoIndexReference( 29033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapGraphEdge::kElement, 29043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch V8HeapExplorer::kInternalRootObject, snapshot_->root(), 29053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch group_info, group_entry); 29063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 290744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 290844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 290944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 291044f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid NativeObjectsExplorer::VisitSubtreeWrapper(Object** p, uint16_t class_id) { 291144f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (in_groups_.Contains(*p)) return; 291244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate = Isolate::Current(); 291344f0eee88ff00398ff7f715fab053374d808c90dSteve Block v8::RetainedObjectInfo* info = 291444f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate->heap_profiler()->ExecuteWrapperClassCallback(class_id, p); 291544f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (info == NULL) return; 291644f0eee88ff00398ff7f715fab053374d808c90dSteve Block GetListMaybeDisposeInfo(info)->Add(HeapObject::cast(*p)); 291744f0eee88ff00398ff7f715fab053374d808c90dSteve Block} 291844f0eee88ff00398ff7f715fab053374d808c90dSteve Block 291944f0eee88ff00398ff7f715fab053374d808c90dSteve Block 2920e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochclass SnapshotCounter : public SnapshotFillerInterface { 2921e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch public: 292244f0eee88ff00398ff7f715fab053374d808c90dSteve Block explicit SnapshotCounter(HeapEntriesMap* entries) : entries_(entries) { } 292344f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* AddEntry(HeapThing ptr, HeapEntriesAllocator* allocator) { 292444f0eee88ff00398ff7f715fab053374d808c90dSteve Block entries_->Pair(ptr, allocator, HeapEntriesMap::kHeapEntryPlaceholder); 2925e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return HeapEntriesMap::kHeapEntryPlaceholder; 2926e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 292744f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* FindEntry(HeapThing ptr) { 292844f0eee88ff00398ff7f715fab053374d808c90dSteve Block return entries_->Map(ptr); 292944f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 293044f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* FindOrAddEntry(HeapThing ptr, HeapEntriesAllocator* allocator) { 293144f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* entry = FindEntry(ptr); 293244f0eee88ff00398ff7f715fab053374d808c90dSteve Block return entry != NULL ? entry : AddEntry(ptr, allocator); 2933e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2934e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetIndexedReference(HeapGraphEdge::Type, 2935e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 2936e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*, 2937e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int, 2938e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 2939e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*) { 2940e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference(parent_ptr, child_ptr); 2941e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2942e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetIndexedAutoIndexReference(HeapGraphEdge::Type, 2943e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 2944e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*, 2945e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 2946e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*) { 2947e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference(parent_ptr, child_ptr); 2948e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2949e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetNamedReference(HeapGraphEdge::Type, 2950e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 2951e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*, 2952e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const char*, 2953e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 2954e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*) { 2955e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference(parent_ptr, child_ptr); 2956e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2957e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetNamedAutoIndexReference(HeapGraphEdge::Type, 2958e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 2959e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*, 2960e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 2961e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry*) { 2962e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference(parent_ptr, child_ptr); 2963e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 29643fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 2965e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch private: 2966e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntriesMap* entries_; 2967e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch}; 2968e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2969e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 2970e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochclass SnapshotFiller : public SnapshotFillerInterface { 2971e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch public: 2972e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch explicit SnapshotFiller(HeapSnapshot* snapshot, HeapEntriesMap* entries) 2973e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch : snapshot_(snapshot), 2974e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch collection_(snapshot->collection()), 2975e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_(entries) { } 297644f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* AddEntry(HeapThing ptr, HeapEntriesAllocator* allocator) { 2977e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch UNREACHABLE(); 2978e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return NULL; 2979e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 298044f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* FindEntry(HeapThing ptr) { 298144f0eee88ff00398ff7f715fab053374d808c90dSteve Block return entries_->Map(ptr); 298244f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 298344f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* FindOrAddEntry(HeapThing ptr, HeapEntriesAllocator* allocator) { 298444f0eee88ff00398ff7f715fab053374d808c90dSteve Block HeapEntry* entry = FindEntry(ptr); 298544f0eee88ff00398ff7f715fab053374d808c90dSteve Block return entry != NULL ? entry : AddEntry(ptr, allocator); 2986e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2987e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetIndexedReference(HeapGraphEdge::Type type, 2988e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 2989e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 2990e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int index, 2991e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 2992e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* child_entry) { 2993e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int child_index, retainer_index; 2994e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference( 2995e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_ptr, child_ptr, &child_index, &retainer_index); 2996e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_entry->SetIndexedReference( 2997e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch type, child_index, index, child_entry, retainer_index); 2998e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 2999e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetIndexedAutoIndexReference(HeapGraphEdge::Type type, 3000e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 3001e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 3002e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 3003e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* child_entry) { 3004e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int child_index, retainer_index; 3005e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference( 3006e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_ptr, child_ptr, &child_index, &retainer_index); 3007e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_entry->SetIndexedReference( 3008e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch type, child_index, child_index + 1, child_entry, retainer_index); 3009e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 3010e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetNamedReference(HeapGraphEdge::Type type, 3011e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 3012e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 3013e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const char* reference_name, 3014e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 3015e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* child_entry) { 3016e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int child_index, retainer_index; 3017e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference( 3018e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_ptr, child_ptr, &child_index, &retainer_index); 3019e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_entry->SetNamedReference( 3020e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch type, child_index, reference_name, child_entry, retainer_index); 3021e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 3022e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch void SetNamedAutoIndexReference(HeapGraphEdge::Type type, 3023e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing parent_ptr, 3024e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* parent_entry, 3025e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapThing child_ptr, 3026e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntry* child_entry) { 3027e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch int child_index, retainer_index; 3028e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_->CountReference( 3029e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_ptr, child_ptr, &child_index, &retainer_index); 3030e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch parent_entry->SetNamedReference(type, 3031e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch child_index, 303244f0eee88ff00398ff7f715fab053374d808c90dSteve Block collection_->names()->GetName(child_index + 1), 3033e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch child_entry, 3034e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch retainer_index); 3035e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 30363fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 3037e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch private: 3038e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapSnapshot* snapshot_; 3039e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapSnapshotsCollection* collection_; 3040e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch HeapEntriesMap* entries_; 3041e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch}; 3042e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3043e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 30443ef787dbeca8a5fb1086949cda830dccee07bfbdBen MurdochHeapSnapshotGenerator::HeapSnapshotGenerator(HeapSnapshot* snapshot, 30453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch v8::ActivityControl* control) 30463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : snapshot_(snapshot), 30473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch control_(control), 30483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch v8_heap_explorer_(snapshot_, this), 30493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch dom_explorer_(snapshot_, this) { 30503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 30513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3053e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HeapSnapshotGenerator::GenerateSnapshot() { 30543fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch v8_heap_explorer_.TagGlobalObjects(); 30553fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch 30563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // TODO(1562) Profiler assumes that any object that is in the heap after 30573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // full GC is reachable from the root when computing dominators. 30583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // This is not true for weakly reachable objects. 30593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // As a temporary solution we call GC twice. 30603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Isolate::Current()->heap()->CollectAllGarbage( 30613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Heap::kMakeHeapIterableMask, 30623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "HeapSnapshotGenerator::GenerateSnapshot"); 30633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Isolate::Current()->heap()->CollectAllGarbage( 30643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Heap::kMakeHeapIterableMask, 30653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "HeapSnapshotGenerator::GenerateSnapshot"); 30663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 30683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Heap* debug_heap = Isolate::Current()->heap(); 30693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!debug_heap->old_data_space()->was_swept_conservatively()); 30703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!debug_heap->old_pointer_space()->was_swept_conservatively()); 30713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!debug_heap->code_space()->was_swept_conservatively()); 30723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!debug_heap->cell_space()->was_swept_conservatively()); 30733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(!debug_heap->map_space()->was_swept_conservatively()); 30743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 30753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The following code uses heap iterators, so we want the heap to be 30773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // stable. It should follow TagGlobalObjects as that can allocate. 3078e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch AssertNoAllocation no_alloc; 3079e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 30803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 30813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch debug_heap->Verify(); 30823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 30833ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30843ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SetProgressTotal(2); // 2 passes. 30853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 30873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch debug_heap->Verify(); 30883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 3089592a9fc1d8ea420377a2e7efd0600e20b058be2bBen Murdoch 3090e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Pass 1. Iterate heap contents to count entries and references. 3091e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!CountEntriesAndReferences()) return false; 3092e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 30933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#ifdef DEBUG 30943ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch debug_heap->Verify(); 30953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 30963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 30973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate memory for entries and references. 3098e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch snapshot_->AllocateEntries(entries_.entries_count(), 3099e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_.total_children_count(), 3100e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_.total_retainers_count()); 31013ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 31023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Allocate heap objects to entries hash map. 3103e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch entries_.AllocateEntries(); 3104e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3105e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch // Pass 2. Fill references. 3106e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!FillReferences()) return false; 3107e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3108e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!SetEntriesDominators()) return false; 31093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!CalculateRetainedSizes()) return false; 3110e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3111e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch progress_counter_ = progress_total_; 3112e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (!ProgressReport(true)) return false; 3113e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return true; 3114e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3115e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3116e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3117e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochvoid HeapSnapshotGenerator::ProgressStep() { 3118e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch ++progress_counter_; 3119e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3120e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3121e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3122e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdochbool HeapSnapshotGenerator::ProgressReport(bool force) { 3123e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch const int kProgressReportGranularity = 10000; 3124e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch if (control_ != NULL 3125e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch && (force || progress_counter_ % kProgressReportGranularity == 0)) { 3126e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return 3127e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch control_->ReportProgressValue(progress_counter_, progress_total_) == 3128e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch v8::ActivityControl::kContinue; 3129e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch } 3130e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch return true; 3131e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch} 3132e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3133e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch 3134b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HeapSnapshotGenerator::SetProgressTotal(int iterations_count) { 3135b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (control_ == NULL) return; 31363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapIterator iterator(HeapIterator::kFilterUnreachable); 313744f0eee88ff00398ff7f715fab053374d808c90dSteve Block progress_total_ = ( 31383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch v8_heap_explorer_.EstimateObjectsCount(&iterator) + 313944f0eee88ff00398ff7f715fab053374d808c90dSteve Block dom_explorer_.EstimateObjectsCount()) * iterations_count; 3140b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch progress_counter_ = 0; 3141b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3142b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3143b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3144b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HeapSnapshotGenerator::CountEntriesAndReferences() { 314544f0eee88ff00398ff7f715fab053374d808c90dSteve Block SnapshotCounter counter(&entries_); 3146e0cee9b3ed82e2391fd85d118aeaa4ea361c687dBen Murdoch v8_heap_explorer_.AddRootEntries(&counter); 31473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return v8_heap_explorer_.IterateAndExtractReferences(&counter) 31483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch && dom_explorer_.IterateAndExtractReferences(&counter); 3149b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3150b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3151b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3152b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HeapSnapshotGenerator::FillReferences() { 3153b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch SnapshotFiller filler(snapshot_, &entries_); 31543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // IterateAndExtractReferences cannot set object names because 31553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // it makes call to JSObject::LocalLookupRealNamedProperty which 31563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // in turn may relocate objects in property maps thus changing the heap 31573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // layout and affecting retainer counts. This is not acceptable because 31583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // number of retainers must not change between count and fill passes. 31593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // To avoid this there's a separate postpass that set object names. 31603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return v8_heap_explorer_.IterateAndExtractReferences(&filler) 31613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch && dom_explorer_.IterateAndExtractReferences(&filler) 31623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch && v8_heap_explorer_.IterateAndSetObjectNames(&filler); 3163b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3164b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3165b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3166b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochvoid HeapSnapshotGenerator::FillReversePostorderIndexes( 3167b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Vector<HeapEntry*>* entries) { 3168b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch snapshot_->ClearPaint(); 3169b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int current_entry = 0; 3170b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch List<HeapEntry*> nodes_to_visit; 3171b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch nodes_to_visit.Add(snapshot_->root()); 31723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch snapshot_->root()->paint(); 3173b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (!nodes_to_visit.is_empty()) { 3174b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HeapEntry* entry = nodes_to_visit.last(); 3175b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Vector<HeapGraphEdge> children = entry->children(); 3176b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch bool has_new_edges = false; 3177b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < children.length(); ++i) { 3178b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (children[i].type() == HeapGraphEdge::kShortcut) continue; 3179b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch HeapEntry* child = children[i].to(); 31803ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!child->painted()) { 3181b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch nodes_to_visit.Add(child); 31823ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch child->paint(); 3183b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch has_new_edges = true; 3184b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3185b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3186b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!has_new_edges) { 3187b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch entry->set_ordered_index(current_entry); 3188b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch (*entries)[current_entry++] = entry; 3189b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch nodes_to_visit.RemoveLast(); 3190b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3191b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 31923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT_EQ(current_entry, entries->length()); 3193b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3194b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3195b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 31963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochstatic int Intersect(int i1, int i2, const Vector<int>& dominators) { 3197b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int finger1 = i1, finger2 = i2; 3198b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch while (finger1 != finger2) { 31993ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (finger1 < finger2) finger1 = dominators[finger1]; 32003ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (finger2 < finger1) finger2 = dominators[finger2]; 3201b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3202b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return finger1; 3203b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3204b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 32053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 3206b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// The algorithm is based on the article: 3207b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch// K. Cooper, T. Harvey and K. Kennedy "A Simple, Fast Dominance Algorithm" 32081e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block// Softw. Pract. Exper. 4 (2001), pp. 1-10. 3209b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HeapSnapshotGenerator::BuildDominatorTree( 3210b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch const Vector<HeapEntry*>& entries, 32113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Vector<int>* dominators) { 3212b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (entries.length() == 0) return true; 3213b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch const int entries_length = entries.length(), root_index = entries_length - 1; 32143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kNoDominator = -1; 32153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < root_index; ++i) (*dominators)[i] = kNoDominator; 32163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch (*dominators)[root_index] = root_index; 32173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 32183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The affected array is used to mark entries which dominators 32193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // have to be racalculated because of changes in their retainers. 32203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ScopedVector<bool> affected(entries_length); 32213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < affected.length(); ++i) affected[i] = false; 32223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Mark the root direct children as affected. 32233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Vector<HeapGraphEdge> children = entries[root_index]->children(); 32243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < children.length(); ++i) { 32253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch affected[children[i].to()->ordered_index()] = true; 32263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 32273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 32283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool changed = true; 32293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch while (changed) { 32303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch changed = false; 32313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!ProgressReport(true)) return false; 3232b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = root_index - 1; i >= 0; --i) { 32333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!affected[i]) continue; 32343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch affected[i] = false; 32353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If dominator of the entry has already been set to root, 32363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // then it can't propagate any further. 32373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((*dominators)[i] == root_index) continue; 32383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int new_idom_index = kNoDominator; 3239b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch Vector<HeapGraphEdge*> rets = entries[i]->retainers(); 32403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int j = 0; j < rets.length(); ++j) { 3241b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (rets[j]->type() == HeapGraphEdge::kShortcut) continue; 32423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int ret_index = rets[j]->From()->ordered_index(); 32433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (dominators->at(ret_index) != kNoDominator) { 32443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch new_idom_index = new_idom_index == kNoDominator 32453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? ret_index 32463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch : Intersect(ret_index, new_idom_index, *dominators); 32473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // If idom has already reached the root, it doesn't make sense 32483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // to check other retainers. 32493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (new_idom_index == root_index) break; 3250b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3251b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 32523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (new_idom_index != kNoDominator 32533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch && dominators->at(i) != new_idom_index) { 32543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch (*dominators)[i] = new_idom_index; 32553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch changed = true; 32563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Vector<HeapGraphEdge> children = entries[i]->children(); 32573ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int j = 0; j < children.length(); ++j) { 32583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch affected[children[j].to()->ordered_index()] = true; 3259b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3260b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3261b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3262b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3263b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return true; 3264b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3265b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3266b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3267b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdochbool HeapSnapshotGenerator::SetEntriesDominators() { 3268b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // This array is used for maintaining reverse postorder of nodes. 3269b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch ScopedVector<HeapEntry*> ordered_entries(snapshot_->entries()->length()); 3270b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch FillReversePostorderIndexes(&ordered_entries); 32713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ScopedVector<int> dominators(ordered_entries.length()); 3272b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch if (!BuildDominatorTree(ordered_entries, &dominators)) return false; 3273b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (int i = 0; i < ordered_entries.length(); ++i) { 32743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(dominators[i] >= 0); 32753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ordered_entries[i]->set_dominator(ordered_entries[dominators[i]]); 3276b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3277b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return true; 3278b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3279b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3280b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 32813ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochbool HeapSnapshotGenerator::CalculateRetainedSizes() { 3282b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // As for the dominators tree we only know parent nodes, not 3283b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // children, to sum up total sizes we "bubble" node's self size 3284b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch // adding it to all of its parents. 32853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch List<HeapEntry*>& entries = *snapshot_->entries(); 32863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < entries.length(); ++i) { 32873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* entry = entries[i]; 3288b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch entry->set_retained_size(entry->self_size()); 3289b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 32903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < entries.length(); ++i) { 32913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry* entry = entries[i]; 3292b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch int entry_size = entry->self_size(); 3293b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch for (HeapEntry* dominator = entry->dominator(); 3294b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch dominator != entry; 3295b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch entry = dominator, dominator = entry->dominator()) { 3296b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch dominator->add_retained_size(entry_size); 3297b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3298b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch } 3299b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch return true; 3300b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 3301b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 3302b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 33033ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochtemplate<int bytes> struct MaxDecimalDigitsIn; 33043ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochtemplate<> struct MaxDecimalDigitsIn<4> { 33053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kSigned = 11; 33063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kUnsigned = 10; 33073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 33083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochtemplate<> struct MaxDecimalDigitsIn<8> { 33093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kSigned = 20; 33103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kUnsigned = 20; 33113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch}; 33123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 33140d5e116f6aee03185f237311a943491bb079a768Kristian Monsenclass OutputStreamWriter { 33150d5e116f6aee03185f237311a943491bb079a768Kristian Monsen public: 33160d5e116f6aee03185f237311a943491bb079a768Kristian Monsen explicit OutputStreamWriter(v8::OutputStream* stream) 33170d5e116f6aee03185f237311a943491bb079a768Kristian Monsen : stream_(stream), 33180d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_size_(stream->GetChunkSize()), 33190d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_(chunk_size_), 33200d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_pos_(0), 33210d5e116f6aee03185f237311a943491bb079a768Kristian Monsen aborted_(false) { 33220d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(chunk_size_ > 0); 33230d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33240d5e116f6aee03185f237311a943491bb079a768Kristian Monsen bool aborted() { return aborted_; } 33250d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddCharacter(char c) { 33260d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(c != '\0'); 33270d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(chunk_pos_ < chunk_size_); 33280d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_[chunk_pos_++] = c; 33290d5e116f6aee03185f237311a943491bb079a768Kristian Monsen MaybeWriteChunk(); 33300d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33310d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddString(const char* s) { 33320d5e116f6aee03185f237311a943491bb079a768Kristian Monsen AddSubstring(s, StrLength(s)); 33330d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33340d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddSubstring(const char* s, int n) { 33350d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (n <= 0) return; 33360d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(static_cast<size_t>(n) <= strlen(s)); 33370d5e116f6aee03185f237311a943491bb079a768Kristian Monsen const char* s_end = s + n; 33380d5e116f6aee03185f237311a943491bb079a768Kristian Monsen while (s < s_end) { 33390d5e116f6aee03185f237311a943491bb079a768Kristian Monsen int s_chunk_size = Min( 33400d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_size_ - chunk_pos_, static_cast<int>(s_end - s)); 33410d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(s_chunk_size > 0); 33420d5e116f6aee03185f237311a943491bb079a768Kristian Monsen memcpy(chunk_.start() + chunk_pos_, s, s_chunk_size); 33430d5e116f6aee03185f237311a943491bb079a768Kristian Monsen s += s_chunk_size; 33440d5e116f6aee03185f237311a943491bb079a768Kristian Monsen chunk_pos_ += s_chunk_size; 33450d5e116f6aee03185f237311a943491bb079a768Kristian Monsen MaybeWriteChunk(); 33460d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33470d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33480d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddNumber(int n) { AddNumberImpl<int>(n, "%d"); } 33490d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddNumber(unsigned n) { AddNumberImpl<unsigned>(n, "%u"); } 33500d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddNumber(uint64_t n) { AddNumberImpl<uint64_t>(n, "%llu"); } 33510d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void Finalize() { 33520d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (aborted_) return; 33530d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(chunk_pos_ < chunk_size_); 33540d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (chunk_pos_ != 0) { 33550d5e116f6aee03185f237311a943491bb079a768Kristian Monsen WriteChunk(); 33560d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33570d5e116f6aee03185f237311a943491bb079a768Kristian Monsen stream_->EndOfStream(); 33580d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33590d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 33600d5e116f6aee03185f237311a943491bb079a768Kristian Monsen private: 33610d5e116f6aee03185f237311a943491bb079a768Kristian Monsen template<typename T> 33620d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void AddNumberImpl(T n, const char* format) { 33633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Buffer for the longest value plus trailing \0 33643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kMaxNumberSize = 33653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MaxDecimalDigitsIn<sizeof(T)>::kUnsigned + 1; 33663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (chunk_size_ - chunk_pos_ >= kMaxNumberSize) { 33673ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int result = OS::SNPrintF( 33683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch chunk_.SubVector(chunk_pos_, chunk_size_), format, n); 33693ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(result != -1); 33703ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch chunk_pos_ += result; 33713ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MaybeWriteChunk(); 33723ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 33733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmbeddedVector<char, kMaxNumberSize> buffer; 33743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int result = OS::SNPrintF(buffer, format, n); 33753ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(result); 33763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(result != -1); 33773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch AddString(buffer.start()); 33783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 33790d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33800d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void MaybeWriteChunk() { 33810d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(chunk_pos_ <= chunk_size_); 33820d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (chunk_pos_ == chunk_size_) { 33830d5e116f6aee03185f237311a943491bb079a768Kristian Monsen WriteChunk(); 33840d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33850d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33860d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void WriteChunk() { 33870d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (aborted_) return; 33880d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (stream_->WriteAsciiChunk(chunk_.start(), chunk_pos_) == 33890d5e116f6aee03185f237311a943491bb079a768Kristian Monsen v8::OutputStream::kAbort) aborted_ = true; 33903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch chunk_pos_ = 0; 33910d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 33920d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 33930d5e116f6aee03185f237311a943491bb079a768Kristian Monsen v8::OutputStream* stream_; 33940d5e116f6aee03185f237311a943491bb079a768Kristian Monsen int chunk_size_; 33950d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ScopedVector<char> chunk_; 33960d5e116f6aee03185f237311a943491bb079a768Kristian Monsen int chunk_pos_; 33970d5e116f6aee03185f237311a943491bb079a768Kristian Monsen bool aborted_; 33980d5e116f6aee03185f237311a943491bb079a768Kristian Monsen}; 33990d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 340069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 34010d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::Serialize(v8::OutputStream* stream) { 34020d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(writer_ == NULL); 34030d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_ = new OutputStreamWriter(stream); 34040d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 340569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapSnapshot* original_snapshot = NULL; 34063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (snapshot_->raw_entries_size() >= 34073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotSizeConstants<kPointerSize>::kMaxSerializableSnapshotRawSize) { 340869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch // The snapshot is too big. Serialize a fake snapshot. 340969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch original_snapshot = snapshot_; 341069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch snapshot_ = CreateFakeSnapshot(); 341169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 34120d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Since nodes graph is cyclic, we need the first pass to enumerate 34130d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // them. Strings can be serialized in one pass. 34140d5e116f6aee03185f237311a943491bb079a768Kristian Monsen EnumerateNodes(); 34150d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeImpl(); 34160d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34170d5e116f6aee03185f237311a943491bb079a768Kristian Monsen delete writer_; 34180d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_ = NULL; 341969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 342069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (original_snapshot != NULL) { 342169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch delete snapshot_; 342269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch snapshot_ = original_snapshot; 342369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch } 342469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 342569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 342669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch 342769a99ed0b2b2ef69d393c371b03db3a98aaf880eBen MurdochHeapSnapshot* HeapSnapshotJSONSerializer::CreateFakeSnapshot() { 342869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapSnapshot* result = new HeapSnapshot(snapshot_->collection(), 342969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapSnapshot::kFull, 343069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch snapshot_->title(), 343169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch snapshot_->uid()); 343269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->AllocateEntries(2, 1, 0); 343369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapEntry* root = result->AddRootEntry(1); 34343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const char* text = snapshot_->collection()->names()->GetFormatted( 34353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "The snapshot is too big. " 34363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "Maximum snapshot size is %" V8_PTR_PREFIX "u MB. " 34373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "Actual snapshot size is %" V8_PTR_PREFIX "u MB.", 34383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SnapshotSizeConstants<kPointerSize>::kMaxSerializableSnapshotRawSize / MB, 34393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch (snapshot_->raw_entries_size() + MB - 1) / MB); 344069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch HeapEntry* message = result->AddEntry( 34413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapEntry::kString, text, 0, 4, 0, 0); 344269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch root->SetUnidirElementReference(0, 1, message); 344369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch result->SetDominatorsToSelf(); 344469a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return result; 34450d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 34460d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34470d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34480d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeImpl() { 34490d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('{'); 34500d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\"snapshot\":{"); 34510d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeSnapshot(); 34520d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 34530d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("},\n"); 34540d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\"nodes\":["); 34550d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeNodes(); 34560d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 34570d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("],\n"); 34580d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\"strings\":["); 34590d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeStrings(); 34600d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 34610d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter(']'); 34620d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('}'); 34630d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->Finalize(); 34640d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 34650d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34660d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34670d5e116f6aee03185f237311a943491bb079a768Kristian Monsenclass HeapSnapshotJSONSerializerEnumerator { 34680d5e116f6aee03185f237311a943491bb079a768Kristian Monsen public: 34690d5e116f6aee03185f237311a943491bb079a768Kristian Monsen explicit HeapSnapshotJSONSerializerEnumerator(HeapSnapshotJSONSerializer* s) 34700d5e116f6aee03185f237311a943491bb079a768Kristian Monsen : s_(s) { 34710d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 34720d5e116f6aee03185f237311a943491bb079a768Kristian Monsen void Apply(HeapEntry** entry) { 34730d5e116f6aee03185f237311a943491bb079a768Kristian Monsen s_->GetNodeId(*entry); 34740d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 34750d5e116f6aee03185f237311a943491bb079a768Kristian Monsen private: 34760d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HeapSnapshotJSONSerializer* s_; 34770d5e116f6aee03185f237311a943491bb079a768Kristian Monsen}; 34780d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34790d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::EnumerateNodes() { 34800d5e116f6aee03185f237311a943491bb079a768Kristian Monsen GetNodeId(snapshot_->root()); // Make sure root gets the first id. 34810d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HeapSnapshotJSONSerializerEnumerator iter(this); 34820d5e116f6aee03185f237311a943491bb079a768Kristian Monsen snapshot_->IterateEntries(&iter); 34830d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 34840d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34850d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34860d5e116f6aee03185f237311a943491bb079a768Kristian Monsenint HeapSnapshotJSONSerializer::GetNodeId(HeapEntry* entry) { 34870d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HashMap::Entry* cache_entry = nodes_.Lookup(entry, ObjectHash(entry), true); 34880d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (cache_entry->value == NULL) { 34890d5e116f6aee03185f237311a943491bb079a768Kristian Monsen cache_entry->value = reinterpret_cast<void*>(next_node_id_++); 34900d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 34910d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return static_cast<int>(reinterpret_cast<intptr_t>(cache_entry->value)); 34920d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 34930d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34940d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 34950d5e116f6aee03185f237311a943491bb079a768Kristian Monsenint HeapSnapshotJSONSerializer::GetStringId(const char* s) { 34960d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HashMap::Entry* cache_entry = strings_.Lookup( 34970d5e116f6aee03185f237311a943491bb079a768Kristian Monsen const_cast<char*>(s), ObjectHash(s), true); 34980d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (cache_entry->value == NULL) { 34990d5e116f6aee03185f237311a943491bb079a768Kristian Monsen cache_entry->value = reinterpret_cast<void*>(next_string_id_++); 35000d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 35010d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return static_cast<int>(reinterpret_cast<intptr_t>(cache_entry->value)); 35020d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 35030d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35040d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35050d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeEdge(HeapGraphEdge* edge) { 35063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The buffer needs space for 3 ints, 3 commas and \0 35073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kBufferSize = 35083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch MaxDecimalDigitsIn<sizeof(int)>::kSigned * 3 + 3 + 1; // NOLINT 35093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmbeddedVector<char, kBufferSize> buffer; 35103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int edge_name_or_index = edge->type() == HeapGraphEdge::kElement 35113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch || edge->type() == HeapGraphEdge::kHidden 35123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch || edge->type() == HeapGraphEdge::kWeak 35133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ? edge->index() : GetStringId(edge->name()); 35143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(edge->type())); // NOLINT 35153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(edge_name_or_index)); // NOLINT 35163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(GetNodeId(edge->to()))); // NOLINT 35173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int result = OS::SNPrintF(buffer, ",%d,%d,%d", 35183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch edge->type(), edge_name_or_index, GetNodeId(edge->to())); 35193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(result); 35203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(result != -1); 35213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch writer_->AddString(buffer.start()); 35220d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 35230d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35240d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35250d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeNode(HeapEntry* entry) { 35263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The buffer needs space for 6 ints, 1 uint32_t, 7 commas, \n and \0 35273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch static const int kBufferSize = 35283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6 * MaxDecimalDigitsIn<sizeof(int)>::kSigned // NOLINT 35293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch + MaxDecimalDigitsIn<sizeof(uint32_t)>::kUnsigned // NOLINT 35303ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch + 7 + 1 + 1; 35313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch EmbeddedVector<char, kBufferSize> buffer; 35320d5e116f6aee03185f237311a943491bb079a768Kristian Monsen Vector<HeapGraphEdge> children = entry->children(); 35333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(entry->type())); // NOLINT 35343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(GetStringId(entry->name()))); // NOLINT 35353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(unsigned) == sizeof(entry->id())); // NOLINT 35363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(entry->self_size())); // NOLINT 35373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(entry->retained_size())); // NOLINT 35383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(GetNodeId(entry->dominator()))); // NOLINT 35393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_CHECK(sizeof(int) == sizeof(children.length())); // NOLINT 35403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int result = OS::SNPrintF(buffer, "\n,%d,%d,%u,%d,%d,%d,%d", 35413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->type(), 35423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetStringId(entry->name()), 35433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->id(), 35443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->self_size(), 35453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch entry->retained_size(), 35463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch GetNodeId(entry->dominator()), 35473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch children.length()); 35483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch USE(result); 35493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ASSERT(result != -1); 35503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch writer_->AddString(buffer.start()); 35510d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for (int i = 0; i < children.length(); ++i) { 35520d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeEdge(&children[i]); 35530d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 35540d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 35550d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 35560d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35570d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 35580d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeNodes() { 35598a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // The first (zero) item of nodes array is an object describing node 35608a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // serialization layout. We use a set of macros to improve 35618a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // readability. 35620d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#define JSON_A(s) "["s"]" 35630d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#define JSON_O(s) "{"s"}" 35648a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang#define JSON_S(s) "\""s"\"" 35658a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang writer_->AddString(JSON_O( 35660d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_S("fields") ":" JSON_A( 35670d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_S("type") 35680d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("name") 35690d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("id") 35700d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("self_size") 35718a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("retained_size") 35728a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("dominator") 35730d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("children_count") 35740d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("children")) 35750d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("types") ":" JSON_A( 35760d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_A( 35778a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang JSON_S("hidden") 35780d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("array") 35790d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("string") 35800d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("object") 35810d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("code") 3582f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch "," JSON_S("closure") 3583f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch "," JSON_S("regexp") 358444f0eee88ff00398ff7f715fab053374d808c90dSteve Block "," JSON_S("number") 35853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "," JSON_S("native") 35863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "," JSON_S("synthetic")) 35870d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("string") 35880d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("number") 35890d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("number") 35900d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("number") 35918a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("number") 35928a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("number") 35930d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_O( 35940d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_S("fields") ":" JSON_A( 35950d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_S("type") 35960d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("name_or_index") 35970d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("to_node")) 35980d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("types") ":" JSON_A( 35990d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_A( 36000d5e116f6aee03185f237311a943491bb079a768Kristian Monsen JSON_S("context") 36010d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("element") 36020d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("property") 36038a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("internal") 36048a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("hidden") 36053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "," JSON_S("shortcut") 36063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch "," JSON_S("weak")) 36070d5e116f6aee03185f237311a943491bb079a768Kristian Monsen "," JSON_S("string_or_number") 36088a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang "," JSON_S("node")))))); 36090d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#undef JSON_S 36100d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#undef JSON_O 36110d5e116f6aee03185f237311a943491bb079a768Kristian Monsen#undef JSON_A 36120d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36138a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang const int node_fields_count = 7; 36148a31eba00023874d4a1dcdc5f411cc4336776874Shimeng (Simon) Wang // type,name,id,self_size,retained_size,dominator,children_count. 36150d5e116f6aee03185f237311a943491bb079a768Kristian Monsen const int edge_fields_count = 3; // type,name|index,to_node. 36160d5e116f6aee03185f237311a943491bb079a768Kristian Monsen List<HashMap::Entry*> sorted_nodes; 36170d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SortHashMap(&nodes_, &sorted_nodes); 36180d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Rewrite node ids, so they refer to actual array positions. 36190d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (sorted_nodes.length() > 1) { 36200d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Nodes start from array index 1. 36210d5e116f6aee03185f237311a943491bb079a768Kristian Monsen int prev_value = 1; 36220d5e116f6aee03185f237311a943491bb079a768Kristian Monsen sorted_nodes[0]->value = reinterpret_cast<void*>(prev_value); 36230d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for (int i = 1; i < sorted_nodes.length(); ++i) { 36240d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HeapEntry* prev_heap_entry = 36250d5e116f6aee03185f237311a943491bb079a768Kristian Monsen reinterpret_cast<HeapEntry*>(sorted_nodes[i-1]->key); 36260d5e116f6aee03185f237311a943491bb079a768Kristian Monsen prev_value += node_fields_count + 36270d5e116f6aee03185f237311a943491bb079a768Kristian Monsen prev_heap_entry->children().length() * edge_fields_count; 36280d5e116f6aee03185f237311a943491bb079a768Kristian Monsen sorted_nodes[i]->value = reinterpret_cast<void*>(prev_value); 36290d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 36300d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 36310d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for (int i = 0; i < sorted_nodes.length(); ++i) { 36320d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeNode(reinterpret_cast<HeapEntry*>(sorted_nodes[i]->key)); 36330d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 36340d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 36350d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 36360d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36370d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36380d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeSnapshot() { 36390d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\"title\":\""); 36400d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString(snapshot_->title()); 36410d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\""); 36420d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString(",\"uid\":"); 36430d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddNumber(snapshot_->uid()); 36440d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 36450d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36460d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36470d5e116f6aee03185f237311a943491bb079a768Kristian Monsenstatic void WriteUChar(OutputStreamWriter* w, unibrow::uchar u) { 36480d5e116f6aee03185f237311a943491bb079a768Kristian Monsen static const char hex_chars[] = "0123456789ABCDEF"; 36490d5e116f6aee03185f237311a943491bb079a768Kristian Monsen w->AddString("\\u"); 36500d5e116f6aee03185f237311a943491bb079a768Kristian Monsen w->AddCharacter(hex_chars[(u >> 12) & 0xf]); 36510d5e116f6aee03185f237311a943491bb079a768Kristian Monsen w->AddCharacter(hex_chars[(u >> 8) & 0xf]); 36520d5e116f6aee03185f237311a943491bb079a768Kristian Monsen w->AddCharacter(hex_chars[(u >> 4) & 0xf]); 36530d5e116f6aee03185f237311a943491bb079a768Kristian Monsen w->AddCharacter(hex_chars[u & 0xf]); 36540d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 36550d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 36560d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeString(const unsigned char* s) { 36570d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('\n'); 36580d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('\"'); 36590d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for ( ; *s != '\0'; ++s) { 36600d5e116f6aee03185f237311a943491bb079a768Kristian Monsen switch (*s) { 36610d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\b': 36620d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\\b"); 36630d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36640d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\f': 36650d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\\f"); 36660d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36670d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\n': 36680d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\\n"); 36690d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36700d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\r': 36710d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\\r"); 36720d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36730d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\t': 36740d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\\t"); 36750d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36760d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\"': 36770d5e116f6aee03185f237311a943491bb079a768Kristian Monsen case '\\': 36780d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('\\'); 36790d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter(*s); 36800d5e116f6aee03185f237311a943491bb079a768Kristian Monsen continue; 36810d5e116f6aee03185f237311a943491bb079a768Kristian Monsen default: 36820d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (*s > 31 && *s < 128) { 36830d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter(*s); 36840d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } else if (*s <= 31) { 36850d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Special character with no dedicated literal. 36860d5e116f6aee03185f237311a943491bb079a768Kristian Monsen WriteUChar(writer_, *s); 36870d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } else { 36880d5e116f6aee03185f237311a943491bb079a768Kristian Monsen // Convert UTF-8 into \u UTF-16 literal. 36890d5e116f6aee03185f237311a943491bb079a768Kristian Monsen unsigned length = 1, cursor = 0; 36900d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for ( ; length <= 4 && *(s + length) != '\0'; ++length) { } 36910d5e116f6aee03185f237311a943491bb079a768Kristian Monsen unibrow::uchar c = unibrow::Utf8::CalculateValue(s, length, &cursor); 36920d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (c != unibrow::Utf8::kBadChar) { 36930d5e116f6aee03185f237311a943491bb079a768Kristian Monsen WriteUChar(writer_, c); 36940d5e116f6aee03185f237311a943491bb079a768Kristian Monsen ASSERT(cursor != 0); 36950d5e116f6aee03185f237311a943491bb079a768Kristian Monsen s += cursor - 1; 36960d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } else { 36970d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('?'); 36980d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 36990d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 37000d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 37010d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 37020d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter('\"'); 37030d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 37040d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37050d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37060d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SerializeStrings() { 37070d5e116f6aee03185f237311a943491bb079a768Kristian Monsen List<HashMap::Entry*> sorted_strings; 37080d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SortHashMap(&strings_, &sorted_strings); 37090d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddString("\"<dummy>\""); 37100d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for (int i = 0; i < sorted_strings.length(); ++i) { 37110d5e116f6aee03185f237311a943491bb079a768Kristian Monsen writer_->AddCharacter(','); 37120d5e116f6aee03185f237311a943491bb079a768Kristian Monsen SerializeString( 37130d5e116f6aee03185f237311a943491bb079a768Kristian Monsen reinterpret_cast<const unsigned char*>(sorted_strings[i]->key)); 37140d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (writer_->aborted()) return; 37150d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 37160d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 37170d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37180d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37190d5e116f6aee03185f237311a943491bb079a768Kristian Monsentemplate<typename T> 37200d5e116f6aee03185f237311a943491bb079a768Kristian Monseninline static int SortUsingEntryValue(const T* x, const T* y) { 37210d5e116f6aee03185f237311a943491bb079a768Kristian Monsen uintptr_t x_uint = reinterpret_cast<uintptr_t>((*x)->value); 37220d5e116f6aee03185f237311a943491bb079a768Kristian Monsen uintptr_t y_uint = reinterpret_cast<uintptr_t>((*y)->value); 37230d5e116f6aee03185f237311a943491bb079a768Kristian Monsen if (x_uint > y_uint) { 37240d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return 1; 37250d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } else if (x_uint == y_uint) { 37260d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return 0; 37270d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } else { 37280d5e116f6aee03185f237311a943491bb079a768Kristian Monsen return -1; 37290d5e116f6aee03185f237311a943491bb079a768Kristian Monsen } 37300d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 37310d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37320d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37330d5e116f6aee03185f237311a943491bb079a768Kristian Monsenvoid HeapSnapshotJSONSerializer::SortHashMap( 37340d5e116f6aee03185f237311a943491bb079a768Kristian Monsen HashMap* map, List<HashMap::Entry*>* sorted_entries) { 37350d5e116f6aee03185f237311a943491bb079a768Kristian Monsen for (HashMap::Entry* p = map->Start(); p != NULL; p = map->Next(p)) 37360d5e116f6aee03185f237311a943491bb079a768Kristian Monsen sorted_entries->Add(p); 37370d5e116f6aee03185f237311a943491bb079a768Kristian Monsen sorted_entries->Sort(SortUsingEntryValue); 37380d5e116f6aee03185f237311a943491bb079a768Kristian Monsen} 37390d5e116f6aee03185f237311a943491bb079a768Kristian Monsen 37406ded16be15dd865a9b21ea304d5273c8be299c87Steve Block} } // namespace v8::internal 3741