13ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// Copyright 2012 the V8 project authors. All rights reserved. 2b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Use of this source code is governed by a BSD-style license that can be 3b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// found in the LICENSE file. 4b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 5b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/v8.h" 6b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 7b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/accessors.h" 8b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/api.h" 9b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/base/platform/platform.h" 10b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/bootstrapper.h" 11b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/code-stubs.h" 12b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/deoptimizer.h" 13b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/execution.h" 14b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/global-handles.h" 15b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/ic.h" 16b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/ic/stub-cache.h" 17b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/natives.h" 18b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/objects.h" 19b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/runtime.h" 20b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/serialize.h" 21b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/snapshot.h" 22b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/snapshot-source-sink.h" 23b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/v8threads.h" 24b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#include "src/version.h" 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace v8 { 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blocknamespace internal { 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// ----------------------------------------------------------------------------- 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Coding of external references. 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// The encoding of an external reference. The type is in the high word. 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// The id is in the low word. 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic uint32_t EncodeExternal(TypeCode type, uint16_t id) { 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return static_cast<uint32_t>(type) << 16 | id; 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 40a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockstatic int* GetInternalPointer(StatsCounter* counter) { 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // All counters refer to dummy_counter, if deserializing happens without 42a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // setting up counters. 43a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static int dummy_counter = 0; 44a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return counter->Enabled() ? counter->GetInternalPointer() : &dummy_counter; 45a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 47a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 4869a99ed0b2b2ef69d393c371b03db3a98aaf880eBen MurdochExternalReferenceTable* ExternalReferenceTable::instance(Isolate* isolate) { 4969a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch ExternalReferenceTable* external_reference_table = 5069a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch isolate->external_reference_table(); 5169a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch if (external_reference_table == NULL) { 5269a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch external_reference_table = new ExternalReferenceTable(isolate); 5369a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch isolate->set_external_reference_table(external_reference_table); 5444f0eee88ff00398ff7f715fab053374d808c90dSteve Block } 5569a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch return external_reference_table; 5669a99ed0b2b2ef69d393c371b03db3a98aaf880eBen Murdoch} 57a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 58a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 59a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid ExternalReferenceTable::AddFromId(TypeCode type, 60a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint16_t id, 6144f0eee88ff00398ff7f715fab053374d808c90dSteve Block const char* name, 6244f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* isolate) { 63a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Address address; 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block switch (type) { 65a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block case C_BUILTIN: { 6644f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReference ref(static_cast<Builtins::CFunctionId>(id), isolate); 67a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block address = ref.address(); 68a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block case BUILTIN: { 7144f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReference ref(static_cast<Builtins::Name>(id), isolate); 72a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block address = ref.address(); 73a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 74a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 75a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block case RUNTIME_FUNCTION: { 7644f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReference ref(static_cast<Runtime::FunctionId>(id), isolate); 77a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block address = ref.address(); 78a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 80a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block case IC_UTILITY: { 8144f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReference ref(IC_Utility(static_cast<IC::UtilityId>(id)), 8244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 83a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block address = ref.address(); 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block break; 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block default: 87a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block UNREACHABLE(); 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return; 89a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 90a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Add(address, type, id, name); 91a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 92a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 94a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid ExternalReferenceTable::Add(Address address, 95a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TypeCode type, 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint16_t id, 97a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const char* name) { 98b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_NE(NULL, address); 99a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReferenceEntry entry; 100a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block entry.address = address; 101a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block entry.code = EncodeExternal(type, id); 102a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block entry.name = name; 103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_NE(0, entry.code); 104b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Assert that the code is added in ascending order to rule out duplicates. 105b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK((size() == 0) || (code(size() - 1) < entry.code)); 106a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block refs_.Add(entry); 107a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (id > max_id_[type]) max_id_[type] = id; 108a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 109a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 110a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 11144f0eee88ff00398ff7f715fab053374d808c90dSteve Blockvoid ExternalReferenceTable::PopulateTable(Isolate* isolate) { 112a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int type_code = 0; type_code < kTypeCodeCount; type_code++) { 113a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block max_id_[type_code] = 0; 114a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 115a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 116b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Miscellaneous 117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::roots_array_start(isolate).address(), 118b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::roots_array_start()"); 119b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_stack_limit(isolate).address(), 120b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "StackGuard::address_of_jslimit()"); 121b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_real_stack_limit(isolate).address(), 122b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "StackGuard::address_of_real_jslimit()"); 123b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::new_space_start(isolate).address(), 124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::NewSpaceStart()"); 125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::new_space_mask(isolate).address(), 126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::NewSpaceMask()"); 127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::new_space_allocation_limit_address(isolate).address(), 128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::NewSpaceAllocationLimitAddress()"); 129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::new_space_allocation_top_address(isolate).address(), 130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::NewSpaceAllocationTopAddress()"); 131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::debug_break(isolate).address(), "Debug::Break()"); 132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::debug_step_in_fp_address(isolate).address(), 133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Debug::step_in_fp_addr()"); 134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::mod_two_doubles_operation(isolate).address(), 135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "mod_two_doubles"); 136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Keyed lookup cache. 137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::keyed_lookup_cache_keys(isolate).address(), 138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "KeyedLookupCache::keys()"); 139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::keyed_lookup_cache_field_offsets(isolate).address(), 140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "KeyedLookupCache::field_offsets()"); 141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::handle_scope_next_address(isolate).address(), 142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "HandleScope::next"); 143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::handle_scope_limit_address(isolate).address(), 144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "HandleScope::limit"); 145b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::handle_scope_level_address(isolate).address(), 146b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "HandleScope::level"); 147b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::new_deoptimizer_function(isolate).address(), 148b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Deoptimizer::New()"); 149b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::compute_output_frames_function(isolate).address(), 150b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Deoptimizer::ComputeOutputFrames()"); 151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_min_int().address(), 152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "LDoubleConstant::min_int"); 153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_one_half().address(), 154b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "LDoubleConstant::one_half"); 155b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::isolate_address(isolate).address(), "isolate"); 156b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_negative_infinity().address(), 157b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "LDoubleConstant::negative_infinity"); 158b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::power_double_double_function(isolate).address(), 159b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "power_double_double_function"); 160b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::power_double_int_function(isolate).address(), 161b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "power_double_int_function"); 162b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::math_log_double_function(isolate).address(), 163b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "std::log"); 164b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::store_buffer_top(isolate).address(), 165b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "store_buffer_top"); 166b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_canonical_non_hole_nan().address(), 167b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "canonical_nan"); 168b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan"); 169b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::get_date_field_function(isolate).address(), 170b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "JSDate::GetField"); 171b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::date_cache_stamp(isolate).address(), 172b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "date_cache_stamp"); 173b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_pending_message_obj(isolate).address(), 174b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "address_of_pending_message_obj"); 175b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_has_pending_message(isolate).address(), 176b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "address_of_has_pending_message"); 177b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_pending_message_script(isolate).address(), 178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "pending_message_script"); 179b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::get_make_code_young_function(isolate).address(), 180b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Code::MakeCodeYoung"); 181b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::cpu_features().address(), "cpu_features"); 182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference(Runtime::kAllocateInNewSpace, isolate).address(), 183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Runtime::AllocateInNewSpace"); 184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference(Runtime::kAllocateInTargetSpace, isolate).address(), 185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Runtime::AllocateInTargetSpace"); 186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::old_pointer_space_allocation_top_address(isolate) 187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 188b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::OldPointerSpaceAllocationTopAddress"); 189b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::old_pointer_space_allocation_limit_address(isolate) 190b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 191b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::OldPointerSpaceAllocationLimitAddress"); 192b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::old_data_space_allocation_top_address(isolate) 193b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 194b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::OldDataSpaceAllocationTopAddress"); 195b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::old_data_space_allocation_limit_address(isolate) 196b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 197b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::OldDataSpaceAllocationLimitAddress"); 198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::allocation_sites_list_address(isolate).address(), 199b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Heap::allocation_sites_list_address()"); 200b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_uint32_bias().address(), "uint32_bias"); 201b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::get_mark_code_as_executed_function(isolate).address(), 202b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Code::MarkCodeAsExecuted"); 203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::is_profiling_address(isolate).address(), 204b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "CpuProfiler::is_profiling"); 205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::scheduled_exception_address(isolate).address(), 206b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Isolate::scheduled_exception"); 207b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::invoke_function_callback(isolate).address(), 208b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "InvokeFunctionCallback"); 209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::invoke_accessor_getter_callback(isolate).address(), 210b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "InvokeAccessorGetterCallback"); 211b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::flush_icache_function(isolate).address(), 212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "CpuFeatures::FlushICache"); 213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::log_enter_external_function(isolate).address(), 214b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Logger::EnterExternal"); 215b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::log_leave_external_function(isolate).address(), 216b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Logger::LeaveExternal"); 217b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_minus_one_half().address(), 218b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "double_constants.minus_one_half"); 219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::stress_deopt_count(isolate).address(), 220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Isolate::stress_deopt_count_address()"); 221b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::incremental_marking_record_write_function(isolate) 222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "IncrementalMarking::RecordWriteFromCode"); 224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Debug addresses 226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::debug_after_break_target_address(isolate).address(), 227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Debug::after_break_target_address()"); 228b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::debug_restarter_frame_function_pointer_address(isolate) 229b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 230b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Debug::restarter_frame_function_pointer_address()"); 231b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::debug_is_active_address(isolate).address(), 232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Debug::is_active_address()"); 233b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 234b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifndef V8_INTERPRETED_REGEXP 235b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::re_case_insensitive_compare_uc16(isolate).address(), 236b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "NativeRegExpMacroAssembler::CaseInsensitiveCompareUC16()"); 237b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::re_check_stack_guard_state(isolate).address(), 238b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RegExpMacroAssembler*::CheckStackGuardState()"); 239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::re_grow_stack(isolate).address(), 240b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "NativeRegExpMacroAssembler::GrowStack()"); 241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::re_word_character_map().address(), 242b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "NativeRegExpMacroAssembler::word_character_map"); 243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_regexp_stack_limit(isolate).address(), 244b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RegExpStack::limit_address()"); 245b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_regexp_stack_memory_address(isolate) 246b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 247b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RegExpStack::memory_address()"); 248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_regexp_stack_memory_size(isolate).address(), 249b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RegExpStack::memory_size()"); 250b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::address_of_static_offsets_vector(isolate).address(), 251b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "OffsetsVector::static_offsets_vector"); 252b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif // V8_INTERPRETED_REGEXP 253b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 254a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // The following populates all of the different type of external references 255a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // into the ExternalReferenceTable. 256a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // 257a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // NOTE: This function was originally 100k of code. It has since been 258a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // rewritten to be mostly table driven, as the callback macro style tends to 259a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // very easily cause code bloat. Please be careful in the future when adding 260a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // new references. 261a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 262a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block struct RefTableEntry { 263a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block TypeCode type; 264a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint16_t id; 265a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const char* name; 266a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block }; 267a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 268a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block static const RefTableEntry ref_table[] = { 269a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Builtins 270e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke#define DEF_ENTRY_C(name, ignored) \ 271a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { C_BUILTIN, \ 272a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Builtins::c_##name, \ 273a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "Builtins::" #name }, 274a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 275a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block BUILTIN_LIST_C(DEF_ENTRY_C) 276a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef DEF_ENTRY_C 277a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 278e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke#define DEF_ENTRY_C(name, ignored) \ 279a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { BUILTIN, \ 28044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Builtins::k##name, \ 281a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "Builtins::" #name }, 2821e0659c275bb392c045087af4f6b0d7565cb3d77Steve Block#define DEF_ENTRY_A(name, kind, state, extra) DEF_ENTRY_C(name, ignored) 283a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 284a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block BUILTIN_LIST_C(DEF_ENTRY_C) 285a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block BUILTIN_LIST_A(DEF_ENTRY_A) 286a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block BUILTIN_LIST_DEBUG_A(DEF_ENTRY_A) 287a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef DEF_ENTRY_C 288a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef DEF_ENTRY_A 289a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 290a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Runtime functions 291a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define RUNTIME_ENTRY(name, nargs, ressize) \ 292a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { RUNTIME_FUNCTION, \ 293a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Runtime::k##name, \ 294a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "Runtime::" #name }, 295a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 296a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block RUNTIME_FUNCTION_LIST(RUNTIME_ENTRY) 297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INLINE_OPTIMIZED_FUNCTION_LIST(RUNTIME_ENTRY) 298a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef RUNTIME_ENTRY 299a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define INLINE_OPTIMIZED_ENTRY(name, nargs, ressize) \ 301b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { RUNTIME_FUNCTION, \ 302b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Runtime::kInlineOptimized##name, \ 303b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Runtime::" #name }, 304b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 305b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch INLINE_OPTIMIZED_FUNCTION_LIST(INLINE_OPTIMIZED_ENTRY) 306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef INLINE_OPTIMIZED_ENTRY 307b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 308a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // IC utilities 309a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define IC_ENTRY(name) \ 310a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block { IC_UTILITY, \ 311a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block IC::k##name, \ 312a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "IC::" #name }, 313a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 314a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block IC_UTIL_LIST(IC_ENTRY) 315a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef IC_ENTRY 316a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block }; // end of ref_table[]. 317a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 318b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (size_t i = 0; i < arraysize(ref_table); ++i) { 31944f0eee88ff00398ff7f715fab053374d808c90dSteve Block AddFromId(ref_table[i].type, 32044f0eee88ff00398ff7f715fab053374d808c90dSteve Block ref_table[i].id, 32144f0eee88ff00398ff7f715fab053374d808c90dSteve Block ref_table[i].name, 32244f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate); 323a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 324a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 325a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Stat counters 326a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block struct StatsRefTableEntry { 32744f0eee88ff00398ff7f715fab053374d808c90dSteve Block StatsCounter* (Counters::*counter)(); 328a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block uint16_t id; 329a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block const char* name; 330a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block }; 331a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 33244f0eee88ff00398ff7f715fab053374d808c90dSteve Block const StatsRefTableEntry stats_ref_table[] = { 333a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#define COUNTER_ENTRY(name, caption) \ 33444f0eee88ff00398ff7f715fab053374d808c90dSteve Block { &Counters::name, \ 335a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Counters::k_##name, \ 336a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block "Counters::" #name }, 337a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 338a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block STATS_COUNTER_LIST_1(COUNTER_ENTRY) 339a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block STATS_COUNTER_LIST_2(COUNTER_ENTRY) 340a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block#undef COUNTER_ENTRY 341a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block }; // end of stats_ref_table[]. 342a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 34344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Counters* counters = isolate->counters(); 344b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (size_t i = 0; i < arraysize(stats_ref_table); ++i) { 34544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(reinterpret_cast<Address>(GetInternalPointer( 34644f0eee88ff00398ff7f715fab053374d808c90dSteve Block (counters->*(stats_ref_table[i].counter))())), 347a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block STATS_COUNTER, 348a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block stats_ref_table[i].id, 349a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block stats_ref_table[i].name); 350a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 351a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 352a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Top addresses 3533ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block 3543ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block const char* AddressNames[] = { 355589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch#define BUILD_NAME_LITERAL(CamelName, hacker_name) \ 356589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch "Isolate::" #hacker_name "_address", 357589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch FOR_EACH_ISOLATE_ADDRESS_NAME(BUILD_NAME_LITERAL) 3583ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block NULL 359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef BUILD_NAME_LITERAL 3603ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block }; 3613ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve Block 362589d6979ff2ef66fca2d8fa51404c369ca5e9250Ben Murdoch for (uint16_t i = 0; i < Isolate::kIsolateAddressCount; ++i) { 36344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(isolate->get_address_from_id((Isolate::AddressId)i), 36444f0eee88ff00398ff7f715fab053374d808c90dSteve Block TOP_ADDRESS, i, AddressNames[i]); 365a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 366a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 367a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Accessors 368b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define ACCESSOR_INFO_DECLARATION(name) \ 369b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(FUNCTION_ADDR(&Accessors::name##Getter), \ 370a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ACCESSOR, \ 371b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Accessors::k##name##Getter, \ 372b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Accessors::" #name "Getter"); \ 373b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(FUNCTION_ADDR(&Accessors::name##Setter), \ 374b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ACCESSOR, \ 375b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Accessors::k##name##Setter, \ 376b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "Accessors::" #name "Setter"); 377b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ACCESSOR_INFO_LIST(ACCESSOR_INFO_DECLARATION) 378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#undef ACCESSOR_INFO_DECLARATION 379a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 38044f0eee88ff00398ff7f715fab053374d808c90dSteve Block StubCache* stub_cache = isolate->stub_cache(); 38144f0eee88ff00398ff7f715fab053374d808c90dSteve Block 382a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Stub cache tables 38344f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(stub_cache->key_reference(StubCache::kPrimary).address(), 384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 1, "StubCache::primary_->key"); 38544f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(stub_cache->value_reference(StubCache::kPrimary).address(), 386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 2, "StubCache::primary_->value"); 3873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Add(stub_cache->map_reference(StubCache::kPrimary).address(), 388b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 3, "StubCache::primary_->map"); 3893ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Add(stub_cache->key_reference(StubCache::kSecondary).address(), 390b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 4, "StubCache::secondary_->key"); 39144f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(stub_cache->value_reference(StubCache::kSecondary).address(), 392b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 5, "StubCache::secondary_->value"); 3933ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Add(stub_cache->map_reference(StubCache::kSecondary).address(), 394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STUB_CACHE_TABLE, 6, "StubCache::secondary_->map"); 395a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 396a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // Runtime entries 39744f0eee88ff00398ff7f715fab053374d808c90dSteve Block Add(ExternalReference::delete_handle_scope_extensions(isolate).address(), 398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RUNTIME_ENTRY, 1, "HandleScope::DeleteExtensions"); 399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(ExternalReference::incremental_marking_record_write_function(isolate) 400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch .address(), 401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RUNTIME_ENTRY, 2, "IncrementalMarking::RecordWrite"); 4023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Add(ExternalReference::store_buffer_overflow_function(isolate).address(), 403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RUNTIME_ENTRY, 3, "StoreBuffer::StoreBufferOverflow"); 404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Add a small set of deopt entry addresses to encoder without generating the 406b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // deopt table code, which isn't possible at deserialization time. 407b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HandleScope scope(isolate); 408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int entry = 0; entry < kDeoptTableSerializeEntryCount; ++entry) { 409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address address = Deoptimizer::GetDeoptimizationEntry( 410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate, 411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch entry, 412b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::LAZY, 413b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deoptimizer::CALCULATE_ENTRY_ADDRESS); 414b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Add(address, LAZY_DEOPTIMIZATION, entry, "lazy_deopt"); 415b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 416a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 417a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 418a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 419b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochExternalReferenceEncoder::ExternalReferenceEncoder(Isolate* isolate) 420b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : encodings_(HashMap::PointersMatch), 421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_(isolate) { 422a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReferenceTable* external_references = 42344f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReferenceTable::instance(isolate_); 424a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < external_references->size(); ++i) { 425a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Put(external_references->address(i), i); 426a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 427a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 428a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 429a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 430a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockuint32_t ExternalReferenceEncoder::Encode(Address key) const { 431a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int index = IndexOf(key); 432b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(key == NULL || index >= 0); 433b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return index >= 0 ? 43444f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReferenceTable::instance(isolate_)->code(index) : 0; 435a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 436a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 437a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 438a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockconst char* ExternalReferenceEncoder::NameOfAddress(Address key) const { 439a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int index = IndexOf(key); 440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return index >= 0 ? ExternalReferenceTable::instance(isolate_)->name(index) 441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : "<unknown>"; 442a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 443a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 444a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 445a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockint ExternalReferenceEncoder::IndexOf(Address key) const { 446a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block if (key == NULL) return -1; 447a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block HashMap::Entry* entry = 44844f0eee88ff00398ff7f715fab053374d808c90dSteve Block const_cast<HashMap&>(encodings_).Lookup(key, Hash(key), false); 449a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block return entry == NULL 450a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ? -1 451a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block : static_cast<int>(reinterpret_cast<intptr_t>(entry->value)); 452a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 453a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 454a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 455a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid ExternalReferenceEncoder::Put(Address key, int index) { 456a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block HashMap::Entry* entry = encodings_.Lookup(key, Hash(key), true); 4576ded16be15dd865a9b21ea304d5273c8be299c87Steve Block entry->value = reinterpret_cast<void*>(index); 458a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 459a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 460a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochExternalReferenceDecoder::ExternalReferenceDecoder(Isolate* isolate) 46244f0eee88ff00398ff7f715fab053374d808c90dSteve Block : encodings_(NewArray<Address*>(kTypeCodeCount)), 463b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_(isolate) { 464a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block ExternalReferenceTable* external_references = 46544f0eee88ff00398ff7f715fab053374d808c90dSteve Block ExternalReferenceTable::instance(isolate_); 466a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int type = kFirstTypeCode; type < kTypeCodeCount; ++type) { 467a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block int max = external_references->max_id(type) + 1; 468a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block encodings_[type] = NewArray<Address>(max + 1); 469a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 470a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int i = 0; i < external_references->size(); ++i) { 471a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block Put(external_references->code(i), external_references->address(i)); 472a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 473a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 474a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 475a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 476a7e24c173cf37484693b9abb38e494fa7bd7baebSteve BlockExternalReferenceDecoder::~ExternalReferenceDecoder() { 477a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block for (int type = kFirstTypeCode; type < kTypeCodeCount; ++type) { 478a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block DeleteArray(encodings_[type]); 479a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 480a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block DeleteArray(encodings_); 481a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 482a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 483a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 484b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochclass CodeAddressMap: public CodeEventLogger { 485b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 486b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch explicit CodeAddressMap(Isolate* isolate) 487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : isolate_(isolate) { 488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->logger()->addCodeEventListener(this); 489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 490a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual ~CodeAddressMap() { 492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->logger()->removeCodeEventListener(this); 493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 494a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 495b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void CodeMoveEvent(Address from, Address to) { 496b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch address_to_name_map_.Move(from, to); 497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 498a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 499b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void CodeDisableOptEvent(Code* code, SharedFunctionInfo* shared) { 500b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 501a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 502b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void CodeDeleteEvent(Address from) { 503b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch address_to_name_map_.Remove(from); 504b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 505b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 506b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* Lookup(Address address) { 507b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return address_to_name_map_.Lookup(address); 508b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 509b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 510b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 511b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch class NameMap { 512b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 513b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NameMap() : impl_(HashMap::PointersMatch) {} 514b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 515b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ~NameMap() { 516b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (HashMap::Entry* p = impl_.Start(); p != NULL; p = impl_.Next(p)) { 517b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeleteArray(static_cast<const char*>(p->value)); 518b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 519d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 520b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 521b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch void Insert(Address code_address, const char* name, int name_size) { 522b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* entry = FindOrCreateEntry(code_address); 523b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (entry->value == NULL) { 524b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch entry->value = CopyName(name, name_size); 525b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 526b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 527b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* Lookup(Address code_address) { 529b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* entry = FindEntry(code_address); 530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return (entry != NULL) ? static_cast<const char*>(entry->value) : NULL; 531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 532b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 533b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch void Remove(Address code_address) { 534b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* entry = FindEntry(code_address); 535b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (entry != NULL) { 536b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DeleteArray(static_cast<char*>(entry->value)); 537b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RemoveEntry(entry); 538b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 539b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 540b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 541b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch void Move(Address from, Address to) { 542b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (from == to) return; 543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* from_entry = FindEntry(from); 544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(from_entry != NULL); 545b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch void* value = from_entry->value; 546b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RemoveEntry(from_entry); 547b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* to_entry = FindOrCreateEntry(to); 548b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(to_entry->value == NULL); 549b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch to_entry->value = value; 550b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 551b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 552b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch private: 553b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static char* CopyName(const char* name, int name_size) { 554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch char* result = NewArray<char>(name_size + 1); 555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < name_size; ++i) { 556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch char c = name[i]; 557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (c == '\0') c = ' '; 558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result[i] = c; 559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch result[name_size] = '\0'; 561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return result; 562b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 563b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 564b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* FindOrCreateEntry(Address code_address) { 565b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return impl_.Lookup(code_address, ComputePointerHash(code_address), true); 566a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap::Entry* FindEntry(Address code_address) { 569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return impl_.Lookup(code_address, 570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ComputePointerHash(code_address), 571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch false); 572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 574b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch void RemoveEntry(HashMap::Entry* entry) { 575b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch impl_.Remove(entry->key, entry->hash); 576b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 577b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HashMap impl_; 579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DISALLOW_COPY_AND_ASSIGN(NameMap); 581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch }; 582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual void LogRecordedBuffer(Code* code, 584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SharedFunctionInfo*, 585b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* name, 586b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int length) { 587b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch address_to_name_map_.Insert(code->address(), name, length); 588a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 589a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch NameMap address_to_name_map_; 591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate_; 592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch}; 593a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 595b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochDeserializer::Deserializer(SnapshotByteSource* source) 596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : isolate_(NULL), 597b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch attached_objects_(NULL), 598b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch source_(source), 599b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch external_reference_decoder_(NULL) { 600b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < LAST_SPACE + 1; i++) { 601b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reservations_[i] = kUninitializedReservation; 602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 603d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 604a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 605a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Deserializer::FlushICacheForNewCodeObjects() { 607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PageIterator it(isolate_->heap()->code_space()); 608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (it.has_next()) { 609b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Page* p = it.next(); 610b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CpuFeatures::FlushICache(p->area_start(), p->area_end() - p->area_start()); 611a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 612a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 613a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 614a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Deserializer::Deserialize(Isolate* isolate) { 616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_ = isolate; 617b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(isolate_ != NULL); 618b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->ReserveSpace(reservations_, &high_water_[0]); 619d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // No active threads. 620b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(NULL, isolate_->thread_manager()->FirstThreadStateInUse()); 621d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // No active handles. 622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(isolate_->handle_scope_implementer()->blocks()->is_empty()); 623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(NULL, external_reference_decoder_); 624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch external_reference_decoder_ = new ExternalReferenceDecoder(isolate); 625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->IterateSmiRoots(this); 62644f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate_->heap()->IterateStrongRoots(this, VISIT_ONLY_STRONG); 627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->RepairFreeListsAfterBoot(); 62844f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate_->heap()->IterateWeakRoots(this, VISIT_ALL); 629f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 630b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->set_native_contexts_list( 63144f0eee88ff00398ff7f715fab053374d808c90dSteve Block isolate_->heap()->undefined_value()); 632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->set_array_buffers_list( 633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->undefined_value()); 634b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 635b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The allocation site list is build during root iteration, but if no sites 636b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // were encountered then it needs to be initialized to undefined. 637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate_->heap()->allocation_sites_list() == Smi::FromInt(0)) { 638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->set_allocation_sites_list( 639b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->undefined_value()); 640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 642b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->InitializeWeakObjectToCodeTable(); 6433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 6443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Update data pointers to the external strings containing natives sources. 6453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { 6463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* source = isolate_->heap()->natives_source_cache()->get(i); 6473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!source->IsUndefined()) { 648b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalOneByteString::cast(source)->update_data_cache(); 6493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 6503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 651b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 652b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FlushICacheForNewCodeObjects(); 653b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 654b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Issue code events for newly deserialized code objects. 655b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOG_CODE_EVENT(isolate_, LogCodeObjects()); 656b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOG_CODE_EVENT(isolate_, LogCompiledFunctions()); 657e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 658e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 659e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Deserializer::DeserializePartial(Isolate* isolate, Object** root) { 661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_ = isolate; 662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = NEW_SPACE; i < kNumberOfSpaces; i++) { 663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(reservations_[i] != kUninitializedReservation); 664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->ReserveSpace(reservations_, &high_water_[0]); 666e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke if (external_reference_decoder_ == NULL) { 667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch external_reference_decoder_ = new ExternalReferenceDecoder(isolate); 668e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DisallowHeapAllocation no_gc; 671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Keep track of the code space start and end pointers in case new 673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // code objects were unserialized 674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OldSpace* code_space = isolate_->heap()->code_space(); 675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address start_address = code_space->top(); 676e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke VisitPointer(root); 677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // There's no code deserialized here. If this assert fires 679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // then that's changed and logging should be added to notify 680b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the profiler et al of the new code. 681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CHECK_EQ(start_address, code_space->top()); 682e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 683e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 684e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 685d91b9f7d46489a9ee00f9cb415630299c76a502bLeon ClarkeDeserializer::~Deserializer() { 686b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(svenpanne) Re-enable this assertion when v8 initialization is fixed. 687b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // DCHECK(source_->AtEOF()); 68844f0eee88ff00398ff7f715fab053374d808c90dSteve Block if (external_reference_decoder_) { 689e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke delete external_reference_decoder_; 690e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke external_reference_decoder_ = NULL; 691e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (attached_objects_) attached_objects_->Dispose(); 693a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 694a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 695a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 696d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block// This is called on the roots. It is the driver of the deserialization 697d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block// process. It is also called on the body of each function. 698d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Deserializer::VisitPointers(Object** start, Object** end) { 699d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // The space must be new space. Any other space would cause ReadChunk to try 700d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // to update the remembered using NULL as the address. 701d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block ReadChunk(start, end, NEW_SPACE, NULL); 702d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 703d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 704d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 705b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Deserializer::RelinkAllocationSite(AllocationSite* site) { 706b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate_->heap()->allocation_sites_list() == Smi::FromInt(0)) { 707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch site->set_weak_next(isolate_->heap()->undefined_value()); 708b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch site->set_weak_next(isolate_->heap()->allocation_sites_list()); 710b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 711b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->set_allocation_sites_list(site); 712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// Used to insert a deserialized internalized string into the string table. 716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochclass StringTableInsertionKey : public HashTableKey { 717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch public: 718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch explicit StringTableInsertionKey(String* string) 719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : string_(string), hash_(HashForObject(string)) { 720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(string->IsInternalizedString()); 721b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual bool IsMatch(Object* string) { 724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We know that all entries in a hash table had their hash keys created. 725b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Use that knowledge to have fast failure. 726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (hash_ != HashForObject(string)) return false; 727b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We want to compare the content of two internalized strings here. 728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return string_->SlowEquals(String::cast(string)); 729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual uint32_t Hash() OVERRIDE { return hash_; } 732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch virtual uint32_t HashForObject(Object* key) OVERRIDE { 734b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return String::cast(key)->Hash(); 735b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 736b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MUST_USE_RESULT virtual Handle<Object> AsHandle(Isolate* isolate) 738b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch OVERRIDE { 739b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return handle(string_, isolate); 740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 742b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* string_; 743b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t hash_; 744b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch}; 745b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 746b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 747b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHeapObject* Deserializer::ProcessNewObjectFromSerializedCode(HeapObject* obj) { 748b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (obj->IsString()) { 749b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* string = String::cast(obj); 750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Uninitialize hash field as the hash seed may have changed. 751b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch string->set_hash_field(String::kEmptyHashField); 752b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (string->IsInternalizedString()) { 753b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DisallowHeapAllocation no_gc; 754b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HandleScope scope(isolate_); 755b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch StringTableInsertionKey key(string); 756b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch String* canonical = *StringTable::LookupKey(isolate_, &key); 757b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch string->SetForwardedInternalizedString(canonical); 758b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return canonical; 759b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 760b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 761b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return obj; 762b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 763b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 764b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 765b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochObject* Deserializer::ProcessBackRefInSerializedCode(Object* obj) { 766b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (obj->IsInternalizedString()) { 767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return String::cast(obj)->GetForwardedInternalizedString(); 768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return obj; 770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 773d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block// This routine writes the new object into the pointer provided and then 774d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block// returns true if the new object was in young space and false otherwise. 775d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block// The reason for this strange interface is that otherwise the object is 7763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// written very late, which means the FreeSpace map is not set up by the 7773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch// time we need to use it to mark the space at the end of a page free. 778d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Deserializer::ReadObject(int space_number, 779d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** write_back) { 780d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int size = source_->GetInt() << kObjectAlignmentBits; 781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address address = Allocate(space_number, size); 782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject* obj = HeapObject::FromAddress(address); 783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->heap()->OnAllocationEvent(obj, size); 784d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** current = reinterpret_cast<Object**>(address); 785d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** limit = current + (size >> kPointerSizeLog2); 786e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke if (FLAG_log_snapshot_positions) { 78744f0eee88ff00398ff7f715fab053374d808c90dSteve Block LOG(isolate_, SnapshotPositionEvent(address, source_->position())); 788e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 789d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block ReadChunk(current, limit, space_number, address); 790f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(mvstanton): consider treating the heap()->allocation_sites_list() 792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // as a (weak) root. If this root is relocated correctly, 793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // RelinkAllocationSite() isn't necessary. 794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (obj->IsAllocationSite()) RelinkAllocationSite(AllocationSite::cast(obj)); 795f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Fix up strings from serialized user code. 797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (deserializing_user_code()) obj = ProcessNewObjectFromSerializedCode(obj); 798d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *write_back = obj; 800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifdef DEBUG 801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool is_codespace = (space_number == CODE_SPACE); 802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(obj->IsCode() == is_codespace); 803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 805d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 806d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Deserializer::ReadChunk(Object** current, 807d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** limit, 808f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke int source_space, 8093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Address current_object_address) { 81044f0eee88ff00398ff7f715fab053374d808c90dSteve Block Isolate* const isolate = isolate_; 811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Write barrier support costs around 1% in startup time. In fact there 812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // are no new space objects in current boot snapshots, so it's not needed, 813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // but that may change. 8143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bool write_barrier_needed = (current_object_address != NULL && 8153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch source_space != NEW_SPACE && 8163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch source_space != CELL_SPACE && 817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch source_space != PROPERTY_CELL_SPACE && 8183ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch source_space != CODE_SPACE && 8193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch source_space != OLD_DATA_SPACE); 820d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block while (current < limit) { 821d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int data = source_->Get(); 822d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block switch (data) { 823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define CASE_STATEMENT(where, how, within, space_number) \ 824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case where + how + within + space_number: \ 825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT((where & ~kPointedToMask) == 0); \ 826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT((how & ~kHowToCodeMask) == 0); \ 827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT((within & ~kWhereToPointMask) == 0); \ 828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT((space_number & ~kSpaceMask) == 0); 829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define CASE_BODY(where, how, within, space_number_if_any) \ 831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { \ 832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool emit_write_barrier = false; \ 833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool current_was_incremented = false; \ 834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int space_number = space_number_if_any == kAnyOldSpace \ 835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? (data & kSpaceMask) \ 836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : space_number_if_any; \ 837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (where == kNewObject && how == kPlain && within == kStartOfObject) { \ 838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReadObject(space_number, current); \ 839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = (space_number == NEW_SPACE); \ 840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { \ 841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* new_object = NULL; /* May not be a real Object pointer. */ \ 842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (where == kNewObject) { \ 843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ReadObject(space_number, &new_object); \ 844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kRootArray) { \ 845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int root_id = source_->GetInt(); \ 846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = isolate->heap()->roots_array_start()[root_id]; \ 847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = isolate->heap()->InNewSpace(new_object); \ 848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kPartialSnapshotCache) { \ 849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int cache_index = source_->GetInt(); \ 850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = isolate->serialize_partial_snapshot_cache()[cache_index]; \ 851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = isolate->heap()->InNewSpace(new_object); \ 852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kExternalReference) { \ 853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = source_->GetInt(); \ 854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = reinterpret_cast<Object**>( \ 855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<Address>(current) + skip); \ 856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int reference_id = source_->GetInt(); \ 857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address address = external_reference_decoder_->Decode(reference_id); \ 858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = reinterpret_cast<Object*>(address); \ 859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kBackref) { \ 860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = (space_number == NEW_SPACE); \ 861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = GetAddressFromEnd(data & kSpaceMask); \ 862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (deserializing_user_code()) { \ 863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = ProcessBackRefInSerializedCode(new_object); \ 864f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } \ 865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kBuiltin) { \ 866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(deserializing_user_code()); \ 867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int builtin_id = source_->GetInt(); \ 868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, builtin_id); \ 869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(builtin_id, Builtins::builtin_count); \ 870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Builtins::Name name = static_cast<Builtins::Name>(builtin_id); \ 871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = isolate->builtins()->builtin(name); \ 872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = false; \ 873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else if (where == kAttachedReference) { \ 874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(deserializing_user_code()); \ 875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = source_->GetInt(); \ 876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = *attached_objects_->at(index); \ 877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = isolate->heap()->InNewSpace(new_object); \ 878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { \ 879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(where == kBackrefWithSkip); \ 880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = source_->GetInt(); \ 881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = reinterpret_cast<Object**>( \ 882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<Address>(current) + skip); \ 883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch emit_write_barrier = (space_number == NEW_SPACE); \ 884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = GetAddressFromEnd(data & kSpaceMask); \ 885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (deserializing_user_code()) { \ 886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = ProcessBackRefInSerializedCode(new_object); \ 887f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } \ 888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (within == kInnerPointer) { \ 890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (space_number != CODE_SPACE || new_object->IsCode()) { \ 891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* new_code_object = reinterpret_cast<Code*>(new_object); \ 892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = \ 893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<Object*>(new_code_object->instruction_start()); \ 894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { \ 895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(space_number == CODE_SPACE); \ 896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Cell* cell = Cell::cast(new_object); \ 897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch new_object = reinterpret_cast<Object*>(cell->ValueAddress()); \ 898f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } \ 899f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke } \ 900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (how == kFromCode) { \ 901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address location_of_branch_data = reinterpret_cast<Address>(current); \ 902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Assembler::deserialization_set_special_target_at( \ 903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch location_of_branch_data, \ 904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code::cast(HeapObject::FromAddress(current_object_address)), \ 905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<Address>(new_object)); \ 906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch location_of_branch_data += Assembler::kSpecialTargetSize; \ 907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = reinterpret_cast<Object**>(location_of_branch_data); \ 908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_was_incremented = true; \ 909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { \ 910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *current = new_object; \ 911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (emit_write_barrier && write_barrier_needed) { \ 914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address current_address = reinterpret_cast<Address>(current); \ 915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->heap()->RecordWrite( \ 916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_object_address, \ 917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<int>(current_address - current_object_address)); \ 918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!current_was_incremented) { \ 920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current++; \ 921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } \ 922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; \ 923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 924f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 925f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke// This generates a case and a body for the new space (which has to do extra 926f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke// write barrier handling) and handles the other spaces with 8 fall-through 927f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke// cases and one body. 928f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke#define ALL_SPACES(where, how, within) \ 929f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, NEW_SPACE) \ 930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(where, how, within, NEW_SPACE) \ 931f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, OLD_DATA_SPACE) \ 932f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, OLD_POINTER_SPACE) \ 933f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, CODE_SPACE) \ 934f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, CELL_SPACE) \ 935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(where, how, within, PROPERTY_CELL_SPACE) \ 936f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(where, how, within, MAP_SPACE) \ 937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(where, how, within, kAnyOldSpace) 938791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 9393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#define FOUR_CASES(byte_code) \ 9403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case byte_code: \ 9413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case byte_code + 1: \ 9423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case byte_code + 2: \ 9433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case byte_code + 3: 9443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 9453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#define SIXTEEN_CASES(byte_code) \ 9463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FOUR_CASES(byte_code) \ 9473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FOUR_CASES(byte_code + 4) \ 9483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FOUR_CASES(byte_code + 8) \ 9493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch FOUR_CASES(byte_code + 12) 950f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define COMMON_RAW_LENGTHS(f) \ 952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(1) \ 953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(2) \ 954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(3) \ 955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(4) \ 956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(5) \ 957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(6) \ 958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(7) \ 959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(8) \ 960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(9) \ 961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(10) \ 962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(11) \ 963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(12) \ 964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(13) \ 965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(14) \ 966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(15) \ 967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(16) \ 968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(17) \ 969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(18) \ 970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(19) \ 971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(20) \ 972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(21) \ 973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(22) \ 974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(23) \ 975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(24) \ 976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(25) \ 977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(26) \ 978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(27) \ 979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(28) \ 980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(29) \ 981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(30) \ 982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch f(31) 983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 984f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // We generate 15 cases and bodies that process special tags that combine 985f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // the raw data tag and the length into one byte. 986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define RAW_CASE(index) \ 987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kRawData + index: { \ 988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* raw_data_out = reinterpret_cast<byte*>(current); \ 989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch source_->CopyRaw(raw_data_out, index * kPointerSize); \ 990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = \ 991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<Object**>(raw_data_out + index * kPointerSize); \ 992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; \ 993d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 994d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block COMMON_RAW_LENGTHS(RAW_CASE) 995d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block#undef RAW_CASE 996f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 997f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Deserialize a chunk of raw data that doesn't have one of the popular 998f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // lengths. 999f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke case kRawData: { 1000d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int size = source_->GetInt(); 1001d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block byte* raw_data_out = reinterpret_cast<byte*>(current); 1002d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block source_->CopyRaw(raw_data_out, size); 1003d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block break; 1004d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1005f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 1006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIXTEEN_CASES(kRootArrayConstants + kNoSkipDistance) 1007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIXTEEN_CASES(kRootArrayConstants + kNoSkipDistance + 16) { 1008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int root_id = RootArrayConstantFromByteCode(data); 1009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* object = isolate->heap()->roots_array_start()[root_id]; 1010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!isolate->heap()->InNewSpace(object)); 1011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch *current++ = object; 1012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIXTEEN_CASES(kRootArrayConstants + kHasSkipDistance) 1016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SIXTEEN_CASES(kRootArrayConstants + kHasSkipDistance + 16) { 10173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int root_id = RootArrayConstantFromByteCode(data); 1018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = source_->GetInt(); 1019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = reinterpret_cast<Object**>( 1020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<intptr_t>(current) + skip); 10213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* object = isolate->heap()->roots_array_start()[root_id]; 1022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!isolate->heap()->InNewSpace(object)); 10233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch *current++ = object; 10243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 10253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 10263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 10273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case kRepeat: { 10283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int repeats = source_->GetInt(); 10293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* object = current[-1]; 1030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!isolate->heap()->InNewSpace(object)); 10313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < repeats; i++) current[i] = object; 10323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch current += repeats; 10333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 10343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 10353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 10363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch STATIC_ASSERT(kRootArrayNumberOfConstantEncodings == 10373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Heap::kOldSpaceRoots); 1038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(kMaxRepeats == 13); 1039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch case kConstantRepeat: 1040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FOUR_CASES(kConstantRepeat + 1) 1041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FOUR_CASES(kConstantRepeat + 5) 1042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch FOUR_CASES(kConstantRepeat + 9) { 10433ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int repeats = RepeatsForCode(data); 10443ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* object = current[-1]; 1045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!isolate->heap()->InNewSpace(object)); 10463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < repeats; i++) current[i] = object; 10473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch current += repeats; 10483ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 10493ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 10503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1051f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Deserialize a new object and write a pointer to it to the current 1052f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // object. 1053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kNewObject, kPlain, kStartOfObject) 1054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Support for direct instruction pointers in functions. It's an inner 1055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // pointer because it points at the entry point, not at the start of the 1056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // code object. 1057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kNewObject, kPlain, kInnerPointer, CODE_SPACE) 1058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kNewObject, kPlain, kInnerPointer, CODE_SPACE) 1059f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Deserialize a new code object and write a pointer to its first 1060f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // instruction to the current code object. 1061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kNewObject, kFromCode, kInnerPointer) 1062f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find a recently deserialized object using its offset from the current 1063f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // allocation point and write a pointer to it to the current object. 1064f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke ALL_SPACES(kBackref, kPlain, kStartOfObject) 1065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackrefWithSkip, kPlain, kStartOfObject) 1066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(V8_TARGET_ARCH_MIPS) || V8_OOL_CONSTANT_POOL || \ 1067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch defined(V8_TARGET_ARCH_MIPS64) 10683ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Deserialize a new object from pointer found in code and write 1069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // a pointer to it to the current object. Required only for MIPS or ARM 1070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // with ool constant pool, and omitted on the other architectures because 1071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // it is fully unrolled and would cause bloat. 1072b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kNewObject, kFromCode, kStartOfObject) 10733ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Find a recently deserialized code object using its offset from the 10743ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // current allocation point and write a pointer to it to the current 1075b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // object. Required only for MIPS or ARM with ool constant pool. 10763ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch ALL_SPACES(kBackref, kFromCode, kStartOfObject) 1077b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackrefWithSkip, kFromCode, kStartOfObject) 10783ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch#endif 1079f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find a recently deserialized code object using its offset from the 1080f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // current allocation point and write a pointer to its first instruction 1081791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block // to the current code object or the instruction pointer in a function 1082791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block // object. 1083b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackref, kFromCode, kInnerPointer) 1084b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackrefWithSkip, kFromCode, kInnerPointer) 1085b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackref, kPlain, kInnerPointer) 1086b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ALL_SPACES(kBackrefWithSkip, kPlain, kInnerPointer) 1087f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find an object in the roots array and write a pointer to it to the 1088f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // current object. 1089f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(kRootArray, kPlain, kStartOfObject, 0) 1090b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kRootArray, kPlain, kStartOfObject, 0) 1091b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if defined(V8_TARGET_ARCH_MIPS) || V8_OOL_CONSTANT_POOL || \ 1092b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch defined(V8_TARGET_ARCH_MIPS64) 1093b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find an object in the roots array and write a pointer to it to in code. 1094b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kRootArray, kFromCode, kStartOfObject, 0) 1095b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kRootArray, kFromCode, kStartOfObject, 0) 1096b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 1097f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find an object in the partial snapshots cache and write a pointer to it 1098f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // to the current object. 1099f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(kPartialSnapshotCache, kPlain, kStartOfObject, 0) 1100f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_BODY(kPartialSnapshotCache, 1101f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kPlain, 1102f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kStartOfObject, 1103b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0) 1104791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block // Find an code entry in the partial snapshots cache and 1105791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block // write a pointer to it to the current object. 1106b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kPartialSnapshotCache, kPlain, kInnerPointer, 0) 1107791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block CASE_BODY(kPartialSnapshotCache, 1108791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block kPlain, 1109b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kInnerPointer, 1110b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0) 1111f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find an external reference and write a pointer to it to the current 1112f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // object. 1113f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(kExternalReference, kPlain, kStartOfObject, 0) 1114f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_BODY(kExternalReference, 1115f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kPlain, 1116f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kStartOfObject, 1117b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0) 1118f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // Find an external reference and write a pointer to it in the current 1119f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke // code object. 1120f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_STATEMENT(kExternalReference, kFromCode, kStartOfObject, 0) 1121f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke CASE_BODY(kExternalReference, 1122f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kFromCode, 1123f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke kStartOfObject, 1124b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 0) 1125b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find a builtin and write a pointer to it to the current object. 1126b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kBuiltin, kPlain, kStartOfObject, 0) 1127b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kBuiltin, kPlain, kStartOfObject, 0) 1128b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#if V8_OOL_CONSTANT_POOL 1129b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find a builtin code entry and write a pointer to it to the current 1130b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // object. 1131b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kBuiltin, kPlain, kInnerPointer, 0) 1132b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kBuiltin, kPlain, kInnerPointer, 0) 1133b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif 1134b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find a builtin and write a pointer to it in the current code object. 1135b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kBuiltin, kFromCode, kInnerPointer, 0) 1136b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kBuiltin, kFromCode, kInnerPointer, 0) 1137b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Find an object in the attached references and write a pointer to it to 1138b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the current object. 1139b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kAttachedReference, kPlain, kStartOfObject, 0) 1140b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kAttachedReference, kPlain, kStartOfObject, 0) 1141b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kAttachedReference, kPlain, kInnerPointer, 0) 1142b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kAttachedReference, kPlain, kInnerPointer, 0) 1143b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_STATEMENT(kAttachedReference, kFromCode, kInnerPointer, 0) 1144b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CASE_BODY(kAttachedReference, kFromCode, kInnerPointer, 0) 1145f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 1146f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke#undef CASE_STATEMENT 1147f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke#undef CASE_BODY 1148f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke#undef ALL_SPACES 1149f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 11503ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch case kSkip: { 1151b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int size = source_->GetInt(); 1152b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current = reinterpret_cast<Object**>( 1153b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch reinterpret_cast<intptr_t>(current) + size); 11543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch break; 11553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 11563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1157f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke case kNativesStringResource: { 1158d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int index = source_->Get(); 11593fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch Vector<const char> source_vector = Natives::GetRawScriptSource(index); 1160d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block NativesExternalStringResource* resource = 11613fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch new NativesExternalStringResource(isolate->bootstrapper(), 11623fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch source_vector.start(), 11633fb3ca8c7ca439d408449a395897395c0faae8d1Ben Murdoch source_vector.length()); 1164d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block *current++ = reinterpret_cast<Object*>(resource); 1165d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block break; 1166d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1167f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 1168f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke case kSynchronize: { 1169d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // If we get here then that indicates that you have a mismatch between 1170d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // the number of GC roots when serializing and deserializing. 1171d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke UNREACHABLE(); 1172d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 1173f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke 1174d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block default: 1175d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block UNREACHABLE(); 1176d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1177a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1178b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_EQ(limit, current); 1179a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1180a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1181a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1182b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochSerializer::Serializer(Isolate* isolate, SnapshotByteSink* sink) 1183b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : isolate_(isolate), 1184b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_(sink), 1185b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch external_reference_encoder_(new ExternalReferenceEncoder(isolate)), 1186b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch root_index_wave_front_(0), 1187b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code_address_map_(NULL) { 118844f0eee88ff00398ff7f715fab053374d808c90dSteve Block // The serializer is meant to be used only to generate initial heap images 118944f0eee88ff00398ff7f715fab053374d808c90dSteve Block // from a context in which there is only one isolate. 1190d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block for (int i = 0; i <= LAST_SPACE; i++) { 1191d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block fullness_[i] = 0; 1192d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1193a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1194a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1195a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 11963100271588b61cbc1dc472a3f2f105d2eed8497fAndrei PopescuSerializer::~Serializer() { 11973100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu delete external_reference_encoder_; 1198b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code_address_map_ != NULL) delete code_address_map_; 11993100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu} 12003100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 12013100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 1202d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkevoid StartupSerializer::SerializeStrongReferences() { 1203b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = this->isolate(); 1204a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // No active threads. 1205b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CHECK_EQ(NULL, isolate->thread_manager()->FirstThreadStateInUse()); 1206a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block // No active or weak handles. 120744f0eee88ff00398ff7f715fab053374d808c90dSteve Block CHECK(isolate->handle_scope_implementer()->blocks()->is_empty()); 120844f0eee88ff00398ff7f715fab053374d808c90dSteve Block CHECK_EQ(0, isolate->global_handles()->NumberOfWeakHandles()); 1209b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CHECK_EQ(0, isolate->eternal_handles()->NumberOfHandles()); 1210d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // We don't support serializing installed extensions. 12113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch CHECK(!isolate->has_installed_extensions()); 1212b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->heap()->IterateSmiRoots(this); 1213b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->heap()->IterateStrongRoots(this, VISIT_ONLY_STRONG); 1214a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1215a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1216a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1217d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkevoid PartialSerializer::Serialize(Object** object) { 1218e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke this->VisitPointer(object); 1219b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Pad(); 1220b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1221d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1222b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1223b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool Serializer::ShouldBeSkipped(Object** current) { 1224b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object** roots = isolate()->heap()->roots_array_start(); 1225b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return current == &roots[Heap::kStoreBufferTopRootIndex] 1226b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch || current == &roots[Heap::kStackLimitRootIndex] 1227b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch || current == &roots[Heap::kRealStackLimitRootIndex]; 1228e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 1229e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1230e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1231a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvoid Serializer::VisitPointers(Object** start, Object** end) { 1232b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = this->isolate();; 12333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1234d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block for (Object** current = start; current < end; current++) { 12353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (start == isolate->heap()->roots_array_start()) { 12363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch root_index_wave_front_ = 12373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Max(root_index_wave_front_, static_cast<intptr_t>(current - start)); 12383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1239b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (ShouldBeSkipped(current)) { 12403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->Put(kSkip, "Skip"); 1241b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(kPointerSize, "SkipOneWord"); 12423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else if ((*current)->IsSmi()) { 1243b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kRawData + 1, "Smi"); 1244d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block for (int i = 0; i < kPointerSize; i++) { 1245d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block sink_->Put(reinterpret_cast<byte*>(current)[i], "Byte"); 1246d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1247d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } else { 1248b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeObject(*current, kPlain, kStartOfObject, 0); 1249a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1250a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1251a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1252a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1253a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1254d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// This ensures that the partial snapshot cache keeps things alive during GC and 1255d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// tracks their movement. When it is called during serialization of the startup 1256b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// snapshot nothing happens. When the partial (context) snapshot is created, 1257b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// this array is populated with the pointers that the partial snapshot will 1258b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// need. As that happens we emit serialized objects to the startup snapshot 1259b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// that correspond to the elements of this cache array. On deserialization we 1260b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// therefore need to visit the cache array. This fills it up with pointers to 1261b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch// deserialized objects. 1262b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid SerializerDeserializer::Iterate(Isolate* isolate, 1263b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ObjectVisitor* visitor) { 1264b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate->serializer_enabled()) return; 1265b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; ; i++) { 1266b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (isolate->serialize_partial_snapshot_cache_length() <= i) { 1267b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Extend the array ready to get a value from the visitor when 1268b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // deserializing. 1269b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->PushToPartialSnapshotCache(Smi::FromInt(0)); 1270b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1271b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object** cache = isolate->serialize_partial_snapshot_cache(); 1272b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch visitor->VisitPointers(&cache[i], &cache[i + 1]); 1273b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Sentinel is the undefined object, which is a root so it will not normally 1274b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // be found in the cache. 1275b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (cache[i] == isolate->heap()->undefined_value()) { 1276b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch break; 1277b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1278b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1279d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke} 1280d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1281d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1282d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkeint PartialSerializer::PartialSnapshotCacheIndex(HeapObject* heap_object) { 1283b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Isolate* isolate = this->isolate(); 128444f0eee88ff00398ff7f715fab053374d808c90dSteve Block 128544f0eee88ff00398ff7f715fab053374d808c90dSteve Block for (int i = 0; 128644f0eee88ff00398ff7f715fab053374d808c90dSteve Block i < isolate->serialize_partial_snapshot_cache_length(); 128744f0eee88ff00398ff7f715fab053374d808c90dSteve Block i++) { 128844f0eee88ff00398ff7f715fab053374d808c90dSteve Block Object* entry = isolate->serialize_partial_snapshot_cache()[i]; 1289d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke if (entry == heap_object) return i; 1290d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 12913100271588b61cbc1dc472a3f2f105d2eed8497fAndrei Popescu 1292d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // We didn't find the object in the cache. So we add it to the cache and 1293d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // then visit the pointer so that it becomes part of the startup snapshot 1294d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // and we can refer to it from the partial snapshot. 129544f0eee88ff00398ff7f715fab053374d808c90dSteve Block int length = isolate->serialize_partial_snapshot_cache_length(); 1296b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate->PushToPartialSnapshotCache(heap_object); 1297b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch startup_serializer_->VisitPointer(reinterpret_cast<Object**>(&heap_object)); 1298d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // We don't recurse from the startup snapshot generator into the partial 1299d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // snapshot generator. 1300b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(length == isolate->serialize_partial_snapshot_cache_length() - 1); 130144f0eee88ff00398ff7f715fab053374d808c90dSteve Block return length; 1302d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke} 1303d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1304d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 13053ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochint Serializer::RootIndex(HeapObject* heap_object, HowToCode from) { 1306b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Heap* heap = isolate()->heap(); 13073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (heap->InNewSpace(heap_object)) return kInvalidRootIndex; 13083ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch for (int i = 0; i < root_index_wave_front_; i++) { 13093ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch Object* root = heap->roots_array_start()[i]; 13103ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (!root->IsSmi() && root == heap_object) { 13113ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return i; 13123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1313e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke } 1314e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke return kInvalidRootIndex; 1315e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke} 1316e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1317e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1318d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// Encode the location of an already deserialized object in order to write its 1319d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// location into a later object. We can encode the location as an offset from 1320d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// the start of the deserialized objects or as an offset backwards from the 1321d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke// current allocation pointer. 1322b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::SerializeReferenceToPreviousObject(HeapObject* heap_object, 1323b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HowToCode how_to_code, 1324b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, 1325b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 1326b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int space = SpaceOfObject(heap_object); 1327b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int address = address_mapper_.MappedTo(heap_object); 1328d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke int offset = CurrentAllocationAddress(space) - address; 1329b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Shift out the bits that are always 0. 1330b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch offset >>= kObjectAlignmentBits; 1331b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip == 0) { 1332f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->Put(kBackref + how_to_code + where_to_point + space, "BackRefSer"); 1333b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } else { 1334b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kBackrefWithSkip + how_to_code + where_to_point + space, 1335b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "BackRefSerWithSkip"); 1336b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "BackRefSkipDistance"); 1337d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 1338b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(offset, "offset"); 1339d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke} 1340d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1341d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1342d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkevoid StartupSerializer::SerializeObject( 1343d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke Object* o, 1344f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke HowToCode how_to_code, 1345b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, 1346b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 1347d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke CHECK(o->IsHeapObject()); 1348d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke HeapObject* heap_object = HeapObject::cast(o); 1349b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!heap_object->IsJSFunction()); 1350d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 13513ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int root_index; 13523ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((root_index = RootIndex(heap_object, how_to_code)) != kInvalidRootIndex) { 1353b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PutRoot(root_index, heap_object, how_to_code, where_to_point, skip); 13543ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return; 13553ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 13563ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1357d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke if (address_mapper_.IsMapped(heap_object)) { 1358b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeReferenceToPreviousObject(heap_object, how_to_code, where_to_point, 1359b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch skip); 1360d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } else { 1361b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1362b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "FlushPendingSkip"); 1363b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistance"); 1364b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1365b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1366d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // Object has not yet been serialized. Serialize it here. 1367d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke ObjectSerializer object_serializer(this, 1368d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke heap_object, 1369d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke sink_, 1370f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke how_to_code, 1371f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke where_to_point); 1372d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke object_serializer.Serialize(); 1373d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 1374d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke} 1375d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1376d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1377d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkevoid StartupSerializer::SerializeWeakReferences() { 1378b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // This phase comes right after the partial serialization (of the snapshot). 1379b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // After we have done the partial serialization the partial snapshot cache 1380b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // will contain some references needed to decode the partial snapshot. We 1381b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // add one entry with 'undefined' which is the sentinel that the deserializer 1382b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // uses to know it is done deserializing the array. 1383b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* undefined = isolate()->heap()->undefined_value(); 1384b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch VisitPointer(&undefined); 1385b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate()->heap()->IterateWeakRoots(this, VISIT_ALL); 1386b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Pad(); 1387d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke} 1388d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1389d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 13903ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Serializer::PutRoot(int root_index, 13913ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObject* object, 13923ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch SerializerDeserializer::HowToCode how_to_code, 1393b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializerDeserializer::WhereToPoint where_to_point, 1394b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 13953ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (how_to_code == kPlain && 13963ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch where_to_point == kStartOfObject && 13973ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch root_index < kRootArrayNumberOfConstantEncodings && 1398b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch !isolate()->heap()->InNewSpace(object)) { 1399b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip == 0) { 1400b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kRootArrayConstants + kNoSkipDistance + root_index, 1401b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RootConstant"); 14023ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 1403b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kRootArrayConstants + kHasSkipDistance + root_index, 1404b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch "RootConstant"); 1405b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipInPutRoot"); 14063ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14073ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 1408b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1409b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromPutRoot"); 1410b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipFromPutRootDistance"); 1411b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 14123ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->Put(kRootArray + how_to_code + where_to_point, "RootSerialization"); 14133ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->PutInt(root_index, "root_index"); 14143ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14153ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 14163ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 14173ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1418d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarkevoid PartialSerializer::SerializeObject( 1419d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke Object* o, 1420f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke HowToCode how_to_code, 1421b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, 1422b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 1423d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke CHECK(o->IsHeapObject()); 1424d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke HeapObject* heap_object = HeapObject::cast(o); 1425d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 14263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (heap_object->IsMap()) { 14273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // The code-caches link to context-specific code objects, which 14283ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // the startup and context serializes cannot currently handle. 1429b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(Map::cast(heap_object)->code_cache() == 1430b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch heap_object->GetHeap()->empty_fixed_array()); 14313ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 14323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1433d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke int root_index; 14343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if ((root_index = RootIndex(heap_object, how_to_code)) != kInvalidRootIndex) { 1435b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PutRoot(root_index, heap_object, how_to_code, where_to_point, skip); 1436d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke return; 1437d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 1438d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1439d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke if (ShouldBeInThePartialSnapshotCache(heap_object)) { 1440b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1441b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeObject"); 1442b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeObject"); 1443b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1444b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1445d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke int cache_index = PartialSnapshotCacheIndex(heap_object); 1446f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->Put(kPartialSnapshotCache + how_to_code + where_to_point, 1447f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke "PartialSnapshotCache"); 1448d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke sink_->PutInt(cache_index, "partial_snapshot_cache_index"); 1449d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke return; 1450d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke } 1451d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1452d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // Pointers from the partial snapshot to the objects in the startup snapshot 1453d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // should go through the root array or through the partial snapshot cache. 1454d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke // If this is not the case you may have to add something to the root array. 1455b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!startup_serializer_->address_mapper()->IsMapped(heap_object)); 1456b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // All the internalized strings that the partial snapshot needs should be 1457b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // either in the root table or in the partial snapshot cache. 1458b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!heap_object->IsInternalizedString()); 1459d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke 1460d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke if (address_mapper_.IsMapped(heap_object)) { 1461b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeReferenceToPreviousObject(heap_object, how_to_code, where_to_point, 1462b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch skip); 1463d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } else { 1464b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1465b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeObject"); 1466b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeObject"); 1467b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1468d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Object has not yet been serialized. Serialize it here. 1469d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block ObjectSerializer serializer(this, 1470d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block heap_object, 1471d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block sink_, 1472f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke how_to_code, 1473f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke where_to_point); 1474d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block serializer.Serialize(); 1475a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1476a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1477a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1478a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1479d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Serializer::ObjectSerializer::Serialize() { 1480d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int space = Serializer::SpaceOfObject(object_); 1481d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int size = object_->Size(); 1482a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1483f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->Put(kNewObject + reference_representation_ + space, 1484f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke "ObjectSerialization"); 1485d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block sink_->PutInt(size >> kObjectAlignmentBits, "Size in words"); 1486a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1487b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (serializer_->code_address_map_) { 1488b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* code_name = 1489b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->code_address_map_->Lookup(object_->address()); 1490b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOG(serializer_->isolate_, 1491b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeNameEvent(object_->address(), sink_->Position(), code_name)); 1492b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch LOG(serializer_->isolate_, 1493b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SnapshotPositionEvent(object_->address(), sink_->Position())); 1494b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1495e46be819fca9468a0cd4e74859ce0f778eb8ca60Leon Clarke 1496d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Mark this object as already serialized. 1497b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int offset = serializer_->Allocate(space, size); 1498d91b9f7d46489a9ee00f9cb415630299c76a502bLeon Clarke serializer_->address_mapper()->AddMapping(object_, offset); 1499a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1500d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Serialize the map (first word of the object). 1501b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject(object_->map(), kPlain, kStartOfObject, 0); 1502a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1503d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // Serialize the rest of the object. 1504d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block CHECK_EQ(0, bytes_processed_so_far_); 1505d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block bytes_processed_so_far_ = kPointerSize; 1506d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block object_->IterateBody(object_->map()->instance_type(), size, this); 1507d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block OutputRawData(object_->address() + size); 1508a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1509a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1510a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1511d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Serializer::ObjectSerializer::VisitPointers(Object** start, 1512d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** end) { 1513d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Object** current = start; 1514d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block while (current < end) { 1515d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block while (current < end && (*current)->IsSmi()) current++; 1516d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block if (current < end) OutputRawData(reinterpret_cast<Address>(current)); 1517a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1518d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block while (current < end && !(*current)->IsSmi()) { 15193ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch HeapObject* current_contents = HeapObject::cast(*current); 15203ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int root_index = serializer_->RootIndex(current_contents, kPlain); 15213ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // Repeats are not subject to the write barrier so there are only some 15223ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // objects that can be used in a repeat encoding. These are the early 15233ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch // ones in the root array that are never in new space. 15243ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (current != start && 15253ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch root_index != kInvalidRootIndex && 15263ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch root_index < kRootArrayNumberOfConstantEncodings && 15273ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch current_contents == current[-1]) { 1528b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!serializer_->isolate()->heap()->InNewSpace(current_contents)); 15293ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch int repeat_count = 1; 1530b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (¤t[repeat_count] < end - 1 && 1531b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current[repeat_count] == current_contents) { 15323ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch repeat_count++; 15333ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 15343ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch current += repeat_count; 15353ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bytes_processed_so_far_ += repeat_count * kPointerSize; 15363ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (repeat_count > kMaxRepeats) { 15373ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->Put(kRepeat, "SerializeRepeats"); 15383ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->PutInt(repeat_count, "SerializeRepeats"); 15393ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 15403ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch sink_->Put(CodeForRepeats(repeat_count), "SerializeRepeats"); 15413ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 15423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 1543b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject( 1544b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch current_contents, kPlain, kStartOfObject, 0); 15453ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bytes_processed_so_far_ += kPointerSize; 15463ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch current++; 15473ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 1548a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1549a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1550a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1551a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1552a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 15533ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Serializer::ObjectSerializer::VisitEmbeddedPointer(RelocInfo* rinfo) { 1554b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Out-of-line constant pool entries will be visited by the ConstantPoolArray. 1555b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_enable_ool_constant_pool && rinfo->IsInConstantPool()) return; 1556b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1557b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(rinfo->target_address_address(), 1558b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kCanReturnSkipInsteadOfSkipping); 1559b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; 1560b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* object = rinfo->target_object(); 1561b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject(object, how_to_code, kStartOfObject, skip); 15623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bytes_processed_so_far_ += rinfo->target_address_size(); 15633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 15643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 15653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1566b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::ObjectSerializer::VisitExternalReference(Address* p) { 1567b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(reinterpret_cast<Address>(p), 1568b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kCanReturnSkipInsteadOfSkipping); 1569b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kExternalReference + kPlain + kStartOfObject, "ExternalRef"); 1570b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipB4ExternalRef"); 1571b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address target = *p; 1572b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); 1573b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bytes_processed_so_far_ += kPointerSize; 1574a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1575a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1576a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 15773ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochvoid Serializer::ObjectSerializer::VisitExternalReference(RelocInfo* rinfo) { 1578b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(rinfo->target_address_address(), 1579b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kCanReturnSkipInsteadOfSkipping); 1580b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; 1581b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kExternalReference + how_to_code + kStartOfObject, "ExternalRef"); 1582b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipB4ExternalRef"); 1583b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address target = rinfo->target_reference(); 1584b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); 15853ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch bytes_processed_so_far_ += rinfo->target_address_size(); 15863ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 15873ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 15883ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1589d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Serializer::ObjectSerializer::VisitRuntimeEntry(RelocInfo* rinfo) { 1590b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(rinfo->target_address_address(), 1591b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kCanReturnSkipInsteadOfSkipping); 1592b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HowToCode how_to_code = rinfo->IsCodedSpecially() ? kFromCode : kPlain; 1593b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kExternalReference + how_to_code + kStartOfObject, "ExternalRef"); 1594b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipB4ExternalRef"); 1595d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Address target = rinfo->target_address(); 1596b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(serializer_->EncodeExternalReference(target), "reference id"); 1597f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke bytes_processed_so_far_ += rinfo->target_address_size(); 1598a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1599a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1600a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1601d0582a6c46733687d045e4188a1bcd0123c758a1Steve Blockvoid Serializer::ObjectSerializer::VisitCodeTarget(RelocInfo* rinfo) { 1602b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Out-of-line constant pool entries will be visited by the ConstantPoolArray. 1603b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_enable_ool_constant_pool && rinfo->IsInConstantPool()) return; 1604b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1605b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(rinfo->target_address_address(), 1606b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch kCanReturnSkipInsteadOfSkipping); 1607b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* object = Code::GetCodeFromTargetAddress(rinfo->target_address()); 1608b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject(object, kFromCode, kInnerPointer, skip); 1609f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke bytes_processed_so_far_ += rinfo->target_address_size(); 1610d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 1611d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 1612d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 1613791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Blockvoid Serializer::ObjectSerializer::VisitCodeEntry(Address entry_address) { 1614b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(entry_address, kCanReturnSkipInsteadOfSkipping); 1615b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* object = Code::cast(Code::GetObjectFromEntryAddress(entry_address)); 1616b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject(object, kPlain, kInnerPointer, skip); 1617791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block bytes_processed_so_far_ += kPointerSize; 1618791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block} 1619791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 1620791712a13f1814dd3ab5d1a5ab8ff5dbc476f6d6Steve Block 1621b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::ObjectSerializer::VisitCell(RelocInfo* rinfo) { 1622b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Out-of-line constant pool entries will be visited by the ConstantPoolArray. 1623b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_enable_ool_constant_pool && rinfo->IsInConstantPool()) return; 1624b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1625b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip = OutputRawData(rinfo->pc(), kCanReturnSkipInsteadOfSkipping); 1626b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Cell* object = Cell::cast(rinfo->target_cell()); 1627b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->SerializeObject(object, kPlain, kInnerPointer, skip); 1628b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bytes_processed_so_far_ += kPointerSize; 1629b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch} 1630b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1631b0fe1620dcb4135ac3ab2d66ff93072373911299Ben Murdoch 1632b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::ObjectSerializer::VisitExternalOneByteString( 1633b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch v8::String::ExternalOneByteStringResource** resource_pointer) { 1634d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Address references_start = reinterpret_cast<Address>(resource_pointer); 1635d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block OutputRawData(references_start); 1636d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block for (int i = 0; i < Natives::GetBuiltinsCount(); i++) { 1637b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* source = 1638b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer_->isolate()->heap()->natives_source_cache()->get(i); 1639d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block if (!source->IsUndefined()) { 1640b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ExternalOneByteString* string = ExternalOneByteString::cast(source); 1641b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch typedef v8::String::ExternalOneByteStringResource Resource; 16423ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch const Resource* resource = string->resource(); 1643d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block if (resource == *resource_pointer) { 1644f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->Put(kNativesStringResource, "NativesStringResource"); 1645d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block sink_->PutSection(i, "NativesStringResourceEnd"); 1646d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block bytes_processed_so_far_ += sizeof(resource); 1647d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block return; 1648d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1649a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1650a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1651d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // One of the strings in the natives cache should match the resource. We 1652d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // can't serialize any other kinds of external strings. 1653d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block UNREACHABLE(); 1654a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1655a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1656a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1657b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic Code* CloneCodeObject(HeapObject* code) { 1658b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address copy = new byte[code->Size()]; 1659b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch MemCopy(copy, code->address(), code->Size()); 1660b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Code::cast(HeapObject::FromAddress(copy)); 1661b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1662b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1663b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1664b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochstatic void WipeOutRelocations(Code* code) { 1665b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int mode_mask = 1666b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RelocInfo::kCodeTargetMask | 1667b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) | 1668b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) | 1669b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY); 1670b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (RelocIterator it(code, mode_mask); !it.done(); it.next()) { 1671b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!(FLAG_enable_ool_constant_pool && it.rinfo()->IsInConstantPool())) { 1672b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch it.rinfo()->WipeOut(); 1673b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1674b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1675b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1676b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1677b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1678b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint Serializer::ObjectSerializer::OutputRawData( 1679b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Address up_to, Serializer::ObjectSerializer::ReturnSkip return_skip) { 1680d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block Address object_start = object_->address(); 1681b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int base = bytes_processed_so_far_; 1682d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int up_to_offset = static_cast<int>(up_to - object_start); 1683b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int to_skip = up_to_offset - bytes_processed_so_far_; 1684b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int bytes_to_output = to_skip; 1685b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bytes_processed_so_far_ += to_skip; 1686d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // This assert will fail if the reloc info gives us the target_address_address 1687d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block // locations in a non-ascending order. Luckily that doesn't happen. 1688b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(to_skip >= 0); 1689b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bool outputting_code = false; 1690b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_skip != 0 && code_object_ && !code_has_been_output_) { 1691b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Output the code all at once and fix later. 1692b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch bytes_to_output = object_->Size() + to_skip - bytes_processed_so_far_; 1693b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch outputting_code = true; 1694b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code_has_been_output_ = true; 1695b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1696b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (bytes_to_output != 0 && 1697b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (!code_object_ || outputting_code)) { 1698b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#define RAW_CASE(index) \ 1699b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (!outputting_code && bytes_to_output == index * kPointerSize && \ 1700b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index * kPointerSize == to_skip) { \ 1701f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->PutSection(kRawData + index, "RawDataFixed"); \ 1702b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch to_skip = 0; /* This insn already skips. */ \ 1703d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } else /* NOLINT */ 1704d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block COMMON_RAW_LENGTHS(RAW_CASE) 1705d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block#undef RAW_CASE 1706d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block { /* NOLINT */ 1707b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We always end up here if we are outputting the code of a code object. 1708f7060e27768c550ace7ec48ad8c093466db52dfaLeon Clarke sink_->Put(kRawData, "RawData"); 1709b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(bytes_to_output, "length"); 1710d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1711a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1712b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // To make snapshots reproducible, we need to wipe out all pointers in code. 1713b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code_object_) { 1714b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* code = CloneCodeObject(object_); 1715b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WipeOutRelocations(code); 1716b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // We need to wipe out the header fields *after* wiping out the 1717b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // relocations, because some of these fields are needed for the latter. 1718b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code->WipeOutHeader(); 1719b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch object_start = code->address(); 1720b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1721a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1722b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch const char* description = code_object_ ? "Code" : "Byte"; 1723b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < bytes_to_output; i++) { 1724b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutSection(object_start[base + i], description); 1725d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1726b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code_object_) delete[] object_start; 1727a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1728b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (to_skip != 0 && return_skip == kIgnoringReturn) { 1729b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "Skip"); 1730b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(to_skip, "SkipDistance"); 1731b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch to_skip = 0; 1732b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1733b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return to_skip; 1734a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1735a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1736a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1737b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint Serializer::SpaceOfObject(HeapObject* object) { 1738d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block for (int i = FIRST_SPACE; i <= LAST_SPACE; i++) { 1739d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block AllocationSpace s = static_cast<AllocationSpace>(i); 1740b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (object->GetHeap()->InSpace(object, s)) { 1741b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(i < kNumberOfSpaces); 1742d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block return i; 1743d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block } 1744a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block } 1745a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block UNREACHABLE(); 1746d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block return 0; 1747d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block} 1748d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 1749d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block 1750b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint Serializer::Allocate(int space, int size) { 1751d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block CHECK(space >= 0 && space < kNumberOfSpaces); 1752d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block int allocation_address = fullness_[space]; 1753d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block fullness_[space] = allocation_address + size; 1754d0582a6c46733687d045e4188a1bcd0123c758a1Steve Block return allocation_address; 1755a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} 1756a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 1757a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 17583ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdochint Serializer::SpaceAreaSize(int space) { 17593ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch if (space == CODE_SPACE) { 17603ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return isolate_->memory_allocator()->CodePageAreaSize(); 17613ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } else { 17623ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch return Page::kPageSize - Page::kObjectStartOffset; 17633ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch } 17643ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch} 17653ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 17663ef787dbeca8a5fb1086949cda830dccee07bfbdBen Murdoch 1767b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::Pad() { 1768b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The non-branching GetInt will read up to 3 bytes too far, so we need 1769b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // to pad the snapshot to make sure we don't read over the end. 1770b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (unsigned i = 0; i < sizeof(int32_t) - 1; i++) { 1771b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kNop, "Padding"); 1772b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1773b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1774b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1775b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1776b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid Serializer::InitializeCodeAddressMap() { 1777b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate_->InitializeLoggingAndCounters(); 1778b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code_address_map_ = new CodeAddressMap(isolate_); 1779b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1780b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1781b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1782b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochScriptData* CodeSerializer::Serialize(Isolate* isolate, 1783b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<SharedFunctionInfo> info, 1784b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> source) { 1785b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base::ElapsedTimer timer; 1786b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_profile_deserialization) timer.Start(); 1787b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1788b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Serialize code object. 1789b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch List<byte> payload; 1790b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ListSnapshotSink list_sink(&payload); 1791b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DebugSnapshotSink debug_sink(&list_sink); 1792b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SnapshotByteSink* sink = FLAG_trace_code_serializer 1793b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ? static_cast<SnapshotByteSink*>(&debug_sink) 1794b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : static_cast<SnapshotByteSink*>(&list_sink); 1795b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeSerializer cs(isolate, sink, *source); 1796b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DisallowHeapAllocation no_gc; 1797b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object** location = Handle<Object>::cast(info).location(); 1798b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cs.VisitPointer(location); 1799b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch cs.Pad(); 1800b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1801b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializedCodeData data(&payload, &cs); 1802b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ScriptData* script_data = data.GetScriptData(); 1803b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1804b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_profile_deserialization) { 1805b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double ms = timer.Elapsed().InMillisecondsF(); 1806b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int length = script_data->length(); 1807b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("[Serializing to %d bytes took %0.3f ms]\n", length, ms); 1808b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1809b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1810b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return script_data; 1811b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1812b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1813b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1814b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid CodeSerializer::SerializeObject(Object* o, HowToCode how_to_code, 1815b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, int skip) { 1816b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CHECK(o->IsHeapObject()); 1817b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HeapObject* heap_object = HeapObject::cast(o); 1818b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1819b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The code-caches link to context-specific code objects, which 1820b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // the startup and context serializes cannot currently handle. 1821b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!heap_object->IsMap() || 1822b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Map::cast(heap_object)->code_cache() == 1823b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch heap_object->GetHeap()->empty_fixed_array()); 1824b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1825b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int root_index; 1826b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if ((root_index = RootIndex(heap_object, how_to_code)) != kInvalidRootIndex) { 1827b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PutRoot(root_index, heap_object, how_to_code, where_to_point, skip); 1828b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1829b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1830b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1831b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(yangguo) wire up global object. 1832b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(yangguo) We cannot deal with different hash seeds yet. 1833b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(!heap_object->IsHashTable()); 1834b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1835b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (address_mapper_.IsMapped(heap_object)) { 1836b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeReferenceToPreviousObject(heap_object, how_to_code, where_to_point, 1837b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch skip); 1838b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1839b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1840b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1841b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (heap_object->IsCode()) { 1842b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Code* code_object = Code::cast(heap_object); 1843b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code_object->kind() == Code::BUILTIN) { 1844b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeBuiltin(code_object, how_to_code, where_to_point, skip); 1845b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1846b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1847b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (code_object->IsCodeStubOrIC()) { 1848b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeCodeStub(code_object, how_to_code, where_to_point, skip); 1849b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1850b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1851b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code_object->ClearInlineCaches(); 1852b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1853b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1854b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (heap_object == source_) { 1855b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeSourceObject(how_to_code, where_to_point, skip); 1856b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1857b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1858b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1859b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeHeapObject(heap_object, how_to_code, where_to_point, skip); 1860b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1861b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1862b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1863b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid CodeSerializer::SerializeHeapObject(HeapObject* heap_object, 1864b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HowToCode how_to_code, 1865b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, 1866b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 1867b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (heap_object->IsScript()) { 1868b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // The wrapper cache uses a Foreign object to point to a global handle. 1869b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // However, the object visitor expects foreign objects to point to external 1870b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // references. Clear the cache to avoid this issue. 1871b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Script::cast(heap_object)->ClearWrapperCache(); 1872b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1873b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1874b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1875b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeObject"); 1876b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeObject"); 1877b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1878b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1879b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_code_serializer) { 1880b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Encoding heap object: "); 1881b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch heap_object->ShortPrint(); 1882b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("\n"); 1883b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1884b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1885b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Object has not yet been serialized. Serialize it here. 1886b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ObjectSerializer serializer(this, heap_object, sink_, how_to_code, 1887b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch where_to_point); 1888b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch serializer.Serialize(); 1889b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1890b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1891b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1892b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid CodeSerializer::SerializeBuiltin(Code* builtin, HowToCode how_to_code, 1893b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, int skip) { 1894b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1895b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeBuiltin"); 1896b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeBuiltin"); 1897b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1898b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1899b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK((how_to_code == kPlain && where_to_point == kStartOfObject) || 1900b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (how_to_code == kPlain && where_to_point == kInnerPointer) || 1901b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (how_to_code == kFromCode && where_to_point == kInnerPointer)); 1902b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int builtin_index = builtin->builtin_index(); 1903b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LT(builtin_index, Builtins::builtin_count); 1904b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK_LE(0, builtin_index); 1905b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1906b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_code_serializer) { 1907b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Encoding builtin: %s\n", 1908b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch isolate()->builtins()->name(builtin_index)); 1909b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1910b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1911b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kBuiltin + how_to_code + where_to_point, "Builtin"); 1912b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(builtin_index, "builtin_index"); 1913b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1914b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1915b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1916b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid CodeSerializer::SerializeCodeStub(Code* code, HowToCode how_to_code, 1917b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, int skip) { 1918b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK((how_to_code == kPlain && where_to_point == kStartOfObject) || 1919b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (how_to_code == kPlain && where_to_point == kInnerPointer) || 1920b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch (how_to_code == kFromCode && where_to_point == kInnerPointer)); 1921b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t stub_key = code->stub_key(); 1922b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1923b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (stub_key == CodeStub::NoCacheKey()) { 1924b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_code_serializer) { 1925b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Encoding uncacheable code stub as heap object\n"); 1926b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1927b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializeHeapObject(code, how_to_code, where_to_point, skip); 1928b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return; 1929b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1930b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1931b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1932b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeCodeStub"); 1933b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeCodeStub"); 1934b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1935b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1936b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = AddCodeStubKey(stub_key) + kCodeStubsBaseIndex; 1937b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1938b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_code_serializer) { 1939b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Encoding code stub %s as %d\n", 1940b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeStub::MajorName(CodeStub::MajorKeyFromKey(stub_key), false), 1941b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index); 1942b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1943b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1944b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kAttachedReference + how_to_code + where_to_point, "CodeStub"); 1945b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(index, "CodeStub key"); 1946b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1947b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1948b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1949b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint CodeSerializer::AddCodeStubKey(uint32_t stub_key) { 1950b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // TODO(yangguo) Maybe we need a hash table for a faster lookup than O(n^2). 1951b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int index = 0; 1952b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch while (index < stub_keys_.length()) { 1953b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (stub_keys_[index] == stub_key) return index; 1954b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch index++; 1955b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1956b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch stub_keys_.Add(stub_key); 1957b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return index; 1958b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1959b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1960b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1961b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochvoid CodeSerializer::SerializeSourceObject(HowToCode how_to_code, 1962b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch WhereToPoint where_to_point, 1963b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int skip) { 1964b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (skip != 0) { 1965b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kSkip, "SkipFromSerializeSourceObject"); 1966b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(skip, "SkipDistanceFromSerializeSourceObject"); 1967b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1968b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1969b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_trace_code_serializer) { 1970b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("Encoding source object\n"); 1971b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1972b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1973b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(how_to_code == kPlain && where_to_point == kStartOfObject); 1974b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->Put(kAttachedReference + how_to_code + where_to_point, "Source"); 1975b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch sink_->PutInt(kSourceObjectIndex, "kSourceObjectIndex"); 1976b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 1977b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1978b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1979b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochHandle<SharedFunctionInfo> CodeSerializer::Deserialize(Isolate* isolate, 1980b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch ScriptData* data, 1981b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Handle<String> source) { 1982b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch base::ElapsedTimer timer; 1983b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_profile_deserialization) timer.Start(); 1984b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1985b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Object* root; 1986b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1987b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch { 1988b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch HandleScope scope(isolate); 1989b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1990b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SerializedCodeData scd(data, *source); 1991b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SnapshotByteSource payload(scd.Payload(), scd.PayloadLength()); 1992b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Deserializer deserializer(&payload); 1993b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(NEW_SPACE == 0); 1994b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = NEW_SPACE; i <= PROPERTY_CELL_SPACE; i++) { 1995b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deserializer.set_reservation(i, scd.GetReservation(i)); 1996b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 1997b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 1998b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Prepare and register list of attached objects. 1999b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Vector<const uint32_t> code_stub_keys = scd.CodeStubKeys(); 2000b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch Vector<Handle<Object> > attached_objects = Vector<Handle<Object> >::New( 2001b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch code_stub_keys.length() + kCodeStubsBaseIndex); 2002b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch attached_objects[kSourceObjectIndex] = source; 2003b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = 0; i < code_stub_keys.length(); i++) { 2004b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch attached_objects[i + kCodeStubsBaseIndex] = 2005b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CodeStub::GetCode(isolate, code_stub_keys[i]).ToHandleChecked(); 2006b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2007b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deserializer.SetAttachedObjects(&attached_objects); 2008b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2009b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Deserialize. 2010b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deserializer.DeserializePartial(isolate, &root); 2011b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch deserializer.FlushICacheForNewCodeObjects(); 2012b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2013b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2014b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch if (FLAG_profile_deserialization) { 2015b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch double ms = timer.Elapsed().InMillisecondsF(); 2016b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int length = data->length(); 2017b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PrintF("[Deserializing from %d bytes took %0.3f ms]\n", length, ms); 2018b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2019b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return Handle<SharedFunctionInfo>(SharedFunctionInfo::cast(root), isolate); 2020b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2021b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2022b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2023b8a8cc1952d61a2f3a2568848933943a543b5d3eBen MurdochSerializedCodeData::SerializedCodeData(List<byte>* payload, CodeSerializer* cs) 2024b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch : owns_script_data_(true) { 2025b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DisallowHeapAllocation no_gc; 2026b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch List<uint32_t>* stub_keys = cs->stub_keys(); 2027b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2028b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Calculate sizes. 2029b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int num_stub_keys = stub_keys->length(); 2030b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int stub_keys_size = stub_keys->length() * kInt32Size; 2031b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int data_length = kHeaderSize + stub_keys_size + payload->length(); 2032b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2033b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Allocate backing store and create result data. 2034b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch byte* data = NewArray<byte>(data_length); 2035b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch DCHECK(IsAligned(reinterpret_cast<intptr_t>(data), kPointerAlignment)); 2036b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch script_data_ = new ScriptData(data, data_length); 2037b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch script_data_->AcquireDataOwnership(); 2038b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2039b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Set header values. 2040b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetHeaderValue(kCheckSumOffset, CheckSum(cs->source())); 2041b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetHeaderValue(kNumCodeStubKeysOffset, num_stub_keys); 2042b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetHeaderValue(kPayloadLengthOffset, payload->length()); 2043b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch STATIC_ASSERT(NEW_SPACE == 0); 2044b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch for (int i = NEW_SPACE; i <= PROPERTY_CELL_SPACE; i++) { 2045b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch SetHeaderValue(kReservationsOffset + i, cs->CurrentAllocationAddress(i)); 2046b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch } 2047b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2048b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Copy code stub keys. 2049b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CopyBytes(data + kHeaderSize, reinterpret_cast<byte*>(stub_keys->begin()), 2050b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch stub_keys_size); 2051b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2052b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch // Copy serialized data. 2053b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch CopyBytes(data + kHeaderSize + stub_keys_size, payload->begin(), 2054b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch static_cast<size_t>(payload->length())); 2055b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2056b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2057b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2058b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochbool SerializedCodeData::IsSane(String* source) { 2059b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return GetHeaderValue(kCheckSumOffset) == CheckSum(source) && 2060b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch PayloadLength() >= SharedFunctionInfo::kSize; 2061b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2062b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2063b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch 2064b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdochint SerializedCodeData::CheckSum(String* string) { 2065b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch int checksum = Version::Hash(); 2066b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#ifdef DEBUG 2067b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch uint32_t seed = static_cast<uint32_t>(checksum); 2068b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch checksum = static_cast<int>(IteratingStringHasher::Hash(string, seed)); 2069b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch#endif // DEBUG 2070b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch return checksum; 2071b8a8cc1952d61a2f3a2568848933943a543b5d3eBen Murdoch} 2072a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block} } // namespace v8::internal 2073