e5b4229bd1
Make heap profiler provide information about each sample currently alive. That information can be used to build diagrams of memory allocations over time. BUG=chromium:889545 Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng Change-Id: Ibcbe2f5302263d0b3976ee4cd3601eff11375cae Reviewed-on: https://chromium-review.googlesource.com/c/1285130 Commit-Queue: Alexei Filippov <alph@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#56793}
3923 lines
145 KiB
C++
3923 lines
145 KiB
C++
// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Tests for heap profiler
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#include <ctype.h>
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#include <memory>
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#include "src/v8.h"
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#include "include/v8-profiler.h"
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#include "src/api-inl.h"
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#include "src/assembler-inl.h"
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#include "src/base/hashmap.h"
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#include "src/collector.h"
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#include "src/debug/debug.h"
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#include "src/objects-inl.h"
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#include "src/profiler/allocation-tracker.h"
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#include "src/profiler/heap-profiler.h"
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#include "src/profiler/heap-snapshot-generator-inl.h"
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#include "test/cctest/cctest.h"
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using i::AllocationTraceNode;
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using i::AllocationTraceTree;
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using i::AllocationTracker;
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using i::ArrayVector;
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using i::SourceLocation;
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using i::Vector;
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using v8::base::Optional;
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namespace {
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class NamedEntriesDetector {
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public:
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NamedEntriesDetector()
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: has_A2(false), has_B2(false), has_C2(false) {
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}
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void CheckEntry(i::HeapEntry* entry) {
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if (strcmp(entry->name(), "A2") == 0) has_A2 = true;
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if (strcmp(entry->name(), "B2") == 0) has_B2 = true;
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if (strcmp(entry->name(), "C2") == 0) has_C2 = true;
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}
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void CheckAllReachables(i::HeapEntry* root) {
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v8::base::HashMap visited;
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std::vector<i::HeapEntry*> list;
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list.push_back(root);
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CheckEntry(root);
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while (!list.empty()) {
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i::HeapEntry* entry = list.back();
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list.pop_back();
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for (int i = 0; i < entry->children_count(); ++i) {
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i::HeapGraphEdge* edge = entry->child(i);
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if (edge->type() == i::HeapGraphEdge::kShortcut) continue;
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i::HeapEntry* child = edge->to();
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v8::base::HashMap::Entry* entry = visited.LookupOrInsert(
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reinterpret_cast<void*>(child),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(child)));
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if (entry->value)
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continue;
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entry->value = reinterpret_cast<void*>(1);
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list.push_back(child);
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CheckEntry(child);
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}
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}
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}
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bool has_A2;
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bool has_B2;
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bool has_C2;
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};
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} // namespace
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static const v8::HeapGraphNode* GetGlobalObject(
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const v8::HeapSnapshot* snapshot) {
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// The 0th-child is (GC Roots), 1st is the user root.
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const v8::HeapGraphNode* global_obj =
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snapshot->GetRoot()->GetChild(1)->GetToNode();
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CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6));
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return global_obj;
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}
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static const char* GetName(const v8::HeapGraphNode* node) {
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return const_cast<i::HeapEntry*>(reinterpret_cast<const i::HeapEntry*>(node))
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->name();
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}
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static const char* GetName(const v8::HeapGraphEdge* edge) {
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return const_cast<i::HeapGraphEdge*>(
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reinterpret_cast<const i::HeapGraphEdge*>(edge))
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->name();
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}
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static size_t GetSize(const v8::HeapGraphNode* node) {
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return const_cast<i::HeapEntry*>(reinterpret_cast<const i::HeapEntry*>(node))
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->self_size();
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}
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static const v8::HeapGraphNode* GetChildByName(const v8::HeapGraphNode* node,
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const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphNode* child = node->GetChild(i)->GetToNode();
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if (!strcmp(name, GetName(child))) {
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return child;
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}
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}
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return nullptr;
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}
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static const v8::HeapGraphEdge* GetEdgeByChildName(
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const v8::HeapGraphNode* node, const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* edge = node->GetChild(i);
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const v8::HeapGraphNode* child = edge->GetToNode();
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if (!strcmp(name, GetName(child))) {
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return edge;
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}
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}
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return nullptr;
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}
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static const v8::HeapGraphNode* GetRootChild(const v8::HeapSnapshot* snapshot,
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const char* name) {
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return GetChildByName(snapshot->GetRoot(), name);
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}
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static Optional<SourceLocation> GetLocation(const v8::HeapSnapshot* s,
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const v8::HeapGraphNode* node) {
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const i::HeapSnapshot* snapshot = reinterpret_cast<const i::HeapSnapshot*>(s);
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const std::vector<SourceLocation>& locations = snapshot->locations();
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const i::HeapEntry* entry = reinterpret_cast<const i::HeapEntry*>(node);
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for (const auto& loc : locations) {
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if (loc.entry_index == entry->index()) {
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return Optional<SourceLocation>(loc);
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}
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}
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return Optional<SourceLocation>();
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}
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static const v8::HeapGraphNode* GetProperty(v8::Isolate* isolate,
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const v8::HeapGraphNode* node,
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v8::HeapGraphEdge::Type type,
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const char* name) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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v8::String::Utf8Value prop_name(isolate, prop->GetName());
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if (prop->GetType() == type && strcmp(name, *prop_name) == 0)
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return prop->GetToNode();
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}
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return nullptr;
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}
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static bool HasString(v8::Isolate* isolate, const v8::HeapGraphNode* node,
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const char* contents) {
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for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = node->GetChild(i);
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const v8::HeapGraphNode* node = prop->GetToNode();
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if (node->GetType() == v8::HeapGraphNode::kString) {
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v8::String::Utf8Value node_name(isolate, node->GetName());
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if (strcmp(contents, *node_name) == 0) return true;
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}
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}
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return false;
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}
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static void EnsureNoUninstrumentedInternals(v8::Isolate* isolate,
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const v8::HeapGraphNode* node) {
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for (int i = 0; i < 20; ++i) {
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i::ScopedVector<char> buffer(10);
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const v8::HeapGraphNode* internal =
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GetProperty(isolate, node, v8::HeapGraphEdge::kInternal,
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i::IntToCString(i, buffer));
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CHECK(!internal);
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}
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}
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// Check that snapshot has no unretained entries except root.
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static bool ValidateSnapshot(const v8::HeapSnapshot* snapshot, int depth = 3) {
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i::HeapSnapshot* heap_snapshot = const_cast<i::HeapSnapshot*>(
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reinterpret_cast<const i::HeapSnapshot*>(snapshot));
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v8::base::HashMap visited;
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std::deque<i::HeapGraphEdge>& edges = heap_snapshot->edges();
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for (size_t i = 0; i < edges.size(); ++i) {
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v8::base::HashMap::Entry* entry = visited.LookupOrInsert(
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reinterpret_cast<void*>(edges[i].to()),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(edges[i].to())));
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uint32_t ref_count = static_cast<uint32_t>(
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reinterpret_cast<uintptr_t>(entry->value));
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entry->value = reinterpret_cast<void*>(ref_count + 1);
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}
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uint32_t unretained_entries_count = 0;
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std::deque<i::HeapEntry>& entries = heap_snapshot->entries();
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for (i::HeapEntry& entry : entries) {
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v8::base::HashMap::Entry* map_entry = visited.Lookup(
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reinterpret_cast<void*>(&entry),
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static_cast<uint32_t>(reinterpret_cast<uintptr_t>(&entry)));
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if (!map_entry && entry.id() != 1) {
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entry.Print("entry with no retainer", "", depth, 0);
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++unretained_entries_count;
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}
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}
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return unretained_entries_count == 0;
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}
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bool EndsWith(const char* a, const char* b) {
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size_t length_a = strlen(a);
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size_t length_b = strlen(b);
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return (length_a >= length_b) && !strcmp(a + length_a - length_b, b);
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}
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TEST(HeapSnapshot) {
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LocalContext env2;
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v8::HandleScope scope(env2->GetIsolate());
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v8::HeapProfiler* heap_profiler = env2->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A2() {}\n"
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"function B2(x) { return function() { return typeof x; }; }\n"
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"function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n"
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"var a2 = new A2();\n"
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"var b2_1 = new B2(a2), b2_2 = new B2(a2);\n"
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"var c2 = new C2(a2);");
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const v8::HeapSnapshot* snapshot_env2 = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot_env2));
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const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
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// Verify, that JS global object of env2 has '..2' properties.
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const v8::HeapGraphNode* a2_node = GetProperty(
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env2->GetIsolate(), global_env2, v8::HeapGraphEdge::kProperty, "a2");
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CHECK(a2_node);
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CHECK(GetProperty(env2->GetIsolate(), global_env2,
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v8::HeapGraphEdge::kProperty, "b2_1"));
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CHECK(GetProperty(env2->GetIsolate(), global_env2,
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v8::HeapGraphEdge::kProperty, "b2_2"));
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CHECK(GetProperty(env2->GetIsolate(), global_env2,
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v8::HeapGraphEdge::kProperty, "c2"));
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NamedEntriesDetector det;
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det.CheckAllReachables(const_cast<i::HeapEntry*>(
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reinterpret_cast<const i::HeapEntry*>(global_env2)));
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CHECK(det.has_A2);
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CHECK(det.has_B2);
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CHECK(det.has_C2);
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}
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TEST(HeapSnapshotLocations) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function X(a) { return function() { return a; } }\n"
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"function* getid() { yield 1; }\n"
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"class A {}\n"
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"var x = X(1);\n"
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"var g = getid();\n"
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"var o = new A();");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* x =
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GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "x");
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CHECK(x);
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Optional<SourceLocation> x_loc = GetLocation(snapshot, x);
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CHECK(x_loc);
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CHECK_EQ(0, x_loc->line);
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CHECK_EQ(31, x_loc->col);
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const v8::HeapGraphNode* g =
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GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "g");
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CHECK(x);
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Optional<SourceLocation> g_loc = GetLocation(snapshot, g);
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CHECK(g_loc);
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CHECK_EQ(1, g_loc->line);
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CHECK_EQ(15, g_loc->col);
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const v8::HeapGraphNode* o =
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GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "o");
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CHECK(x);
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Optional<SourceLocation> o_loc = GetLocation(snapshot, o);
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CHECK(o_loc);
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CHECK_EQ(2, o_loc->line);
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CHECK_EQ(0, o_loc->col);
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}
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TEST(HeapSnapshotObjectSizes) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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// -a-> X1 --a
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// x -b-> X2 <-|
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CompileRun(
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"function X(a, b) { this.a = a; this.b = b; }\n"
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"x = new X(new X(), new X());\n"
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"dummy = new X();\n"
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"(function() { x.a.a = x.b; })();");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* x =
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GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "x");
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CHECK(x);
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const v8::HeapGraphNode* x1 =
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GetProperty(env->GetIsolate(), x, v8::HeapGraphEdge::kProperty, "a");
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CHECK(x1);
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const v8::HeapGraphNode* x2 =
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GetProperty(env->GetIsolate(), x, v8::HeapGraphEdge::kProperty, "b");
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CHECK(x2);
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// Test sizes.
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CHECK_NE(0, static_cast<int>(x->GetShallowSize()));
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CHECK_NE(0, static_cast<int>(x1->GetShallowSize()));
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CHECK_NE(0, static_cast<int>(x2->GetShallowSize()));
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}
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TEST(BoundFunctionInSnapshot) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function myFunction(a, b) { this.a = a; this.b = b; }\n"
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"function AAAAA() {}\n"
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"boundFunction = myFunction.bind(new AAAAA(), 20, new Number(12)); \n");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* f = GetProperty(
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env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "boundFunction");
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CHECK(f);
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CHECK(v8_str("native_bind")->Equals(env.local(), f->GetName()).FromJust());
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const v8::HeapGraphNode* bindings = GetProperty(
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env->GetIsolate(), f, v8::HeapGraphEdge::kInternal, "bindings");
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CHECK(bindings);
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CHECK_EQ(v8::HeapGraphNode::kArray, bindings->GetType());
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CHECK_EQ(1, bindings->GetChildrenCount());
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const v8::HeapGraphNode* bound_this = GetProperty(
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env->GetIsolate(), f, v8::HeapGraphEdge::kInternal, "bound_this");
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CHECK(bound_this);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_this->GetType());
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const v8::HeapGraphNode* bound_function = GetProperty(
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env->GetIsolate(), f, v8::HeapGraphEdge::kInternal, "bound_function");
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CHECK(bound_function);
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CHECK_EQ(v8::HeapGraphNode::kClosure, bound_function->GetType());
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const v8::HeapGraphNode* bound_argument = GetProperty(
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env->GetIsolate(), f, v8::HeapGraphEdge::kShortcut, "bound_argument_1");
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CHECK(bound_argument);
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CHECK_EQ(v8::HeapGraphNode::kObject, bound_argument->GetType());
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}
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TEST(HeapSnapshotEntryChildren) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function A() { }\n"
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"a = new A;");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = global->GetChild(i);
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CHECK_EQ(global, prop->GetFromNode());
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}
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const v8::HeapGraphNode* a =
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GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "a");
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CHECK(a);
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for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
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const v8::HeapGraphEdge* prop = a->GetChild(i);
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CHECK_EQ(a, prop->GetFromNode());
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}
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}
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TEST(HeapSnapshotCodeObjects) {
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LocalContext env;
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v8::HandleScope scope(env->GetIsolate());
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v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
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CompileRun(
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"function lazy(x) { return x - 1; }\n"
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"function compiled(x) { ()=>x; return x + 1; }\n"
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"var anonymous = (function() { return function() { return 0; } })();\n"
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"compiled(1)");
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const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
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CHECK(ValidateSnapshot(snapshot));
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const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
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const v8::HeapGraphNode* compiled = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "compiled");
|
|
CHECK(compiled);
|
|
CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
|
|
const v8::HeapGraphNode* lazy = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "lazy");
|
|
CHECK(lazy);
|
|
CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
|
|
const v8::HeapGraphNode* anonymous = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "anonymous");
|
|
CHECK(anonymous);
|
|
CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType());
|
|
v8::String::Utf8Value anonymous_name(env->GetIsolate(), anonymous->GetName());
|
|
CHECK_EQ(0, strcmp("", *anonymous_name));
|
|
|
|
// Find references to shared function info.
|
|
const v8::HeapGraphNode* compiled_sfi = GetProperty(
|
|
env->GetIsolate(), compiled, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(compiled_sfi);
|
|
const v8::HeapGraphNode* lazy_sfi = GetProperty(
|
|
env->GetIsolate(), lazy, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(lazy_sfi);
|
|
|
|
// TODO(leszeks): Check that there's bytecode on the compiled function, but
|
|
// not the lazy function.
|
|
|
|
// Verify that non-compiled function doesn't contain references to "x"
|
|
// literal, while compiled function does. The scope info is stored in
|
|
// FixedArray objects attached to the SharedFunctionInfo.
|
|
bool compiled_references_x = false, lazy_references_x = false;
|
|
for (int i = 0, count = compiled_sfi->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = compiled_sfi->GetChild(i);
|
|
const v8::HeapGraphNode* node = prop->GetToNode();
|
|
if (node->GetType() == v8::HeapGraphNode::kArray) {
|
|
if (HasString(env->GetIsolate(), node, "x")) {
|
|
compiled_references_x = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (int i = 0, count = lazy_sfi->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = lazy_sfi->GetChild(i);
|
|
const v8::HeapGraphNode* node = prop->GetToNode();
|
|
if (node->GetType() == v8::HeapGraphNode::kArray) {
|
|
if (HasString(env->GetIsolate(), node, "x")) {
|
|
lazy_references_x = true;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
CHECK(compiled_references_x);
|
|
if (i::FLAG_lazy) {
|
|
CHECK(!lazy_references_x);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotHeapNumbers) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"a = 1; // a is Smi\n"
|
|
"b = 2.5; // b is HeapNumber");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(!GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty,
|
|
"a"));
|
|
const v8::HeapGraphNode* b =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b);
|
|
CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType());
|
|
}
|
|
|
|
TEST(HeapSnapshotHeapBigInts) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"a = 1n;"
|
|
"b = Object(BigInt(2))");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* a =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a);
|
|
CHECK_EQ(v8::HeapGraphNode::kBigInt, a->GetType());
|
|
const v8::HeapGraphNode* b =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, b->GetType());
|
|
}
|
|
|
|
TEST(HeapSnapshotSlicedString) {
|
|
if (!i::FLAG_string_slices) return;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"parent_string = \"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789."
|
|
"123456789.123456789.123456789.123456789.123456789.\";"
|
|
"child_string = parent_string.slice(100);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* parent_string = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "parent_string");
|
|
CHECK(parent_string);
|
|
const v8::HeapGraphNode* child_string = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "child_string");
|
|
CHECK(child_string);
|
|
CHECK_EQ(v8::HeapGraphNode::kSlicedString, child_string->GetType());
|
|
const v8::HeapGraphNode* parent = GetProperty(
|
|
env->GetIsolate(), child_string, v8::HeapGraphEdge::kInternal, "parent");
|
|
CHECK_EQ(parent_string, parent);
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotConsString) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::Local<v8::ObjectTemplate> global_template =
|
|
v8::ObjectTemplate::New(isolate);
|
|
global_template->SetInternalFieldCount(1);
|
|
LocalContext env(nullptr, global_template);
|
|
v8::Local<v8::Object> global_proxy = env->Global();
|
|
v8::Local<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
|
|
CHECK_EQ(1, global->InternalFieldCount());
|
|
|
|
i::Factory* factory = CcTest::i_isolate()->factory();
|
|
i::Handle<i::String> first = factory->NewStringFromStaticChars("0123456789");
|
|
i::Handle<i::String> second = factory->NewStringFromStaticChars("0123456789");
|
|
i::Handle<i::String> cons_string =
|
|
factory->NewConsString(first, second).ToHandleChecked();
|
|
|
|
global->SetInternalField(0, v8::ToApiHandle<v8::String>(cons_string));
|
|
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
|
|
|
|
const v8::HeapGraphNode* string_node =
|
|
GetProperty(isolate, global_node, v8::HeapGraphEdge::kInternal, "0");
|
|
CHECK(string_node);
|
|
CHECK_EQ(v8::HeapGraphNode::kConsString, string_node->GetType());
|
|
|
|
const v8::HeapGraphNode* first_node =
|
|
GetProperty(isolate, string_node, v8::HeapGraphEdge::kInternal, "first");
|
|
CHECK_EQ(v8::HeapGraphNode::kString, first_node->GetType());
|
|
|
|
const v8::HeapGraphNode* second_node =
|
|
GetProperty(isolate, string_node, v8::HeapGraphEdge::kInternal, "second");
|
|
CHECK_EQ(v8::HeapGraphNode::kString, second_node->GetType());
|
|
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotSymbol) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("a = Symbol('mySymbol');\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* a =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a);
|
|
CHECK_EQ(a->GetType(), v8::HeapGraphNode::kSymbol);
|
|
CHECK(v8_str("symbol")->Equals(env.local(), a->GetName()).FromJust());
|
|
const v8::HeapGraphNode* name =
|
|
GetProperty(env->GetIsolate(), a, v8::HeapGraphEdge::kInternal, "name");
|
|
CHECK(name);
|
|
CHECK(v8_str("mySymbol")->Equals(env.local(), name->GetName()).FromJust());
|
|
}
|
|
|
|
TEST(HeapSnapshotWeakCollection) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"k = {}; v = {}; s = 'str';\n"
|
|
"ws = new WeakSet(); ws.add(k); ws.add(v); ws[s] = s;\n"
|
|
"wm = new WeakMap(); wm.set(k, v); wm[s] = s;\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* k =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "k");
|
|
CHECK(k);
|
|
const v8::HeapGraphNode* v =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "v");
|
|
CHECK(v);
|
|
const v8::HeapGraphNode* s =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "s");
|
|
CHECK(s);
|
|
|
|
const v8::HeapGraphNode* ws = GetProperty(env->GetIsolate(), global,
|
|
v8::HeapGraphEdge::kProperty, "ws");
|
|
CHECK(ws);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, ws->GetType());
|
|
CHECK(v8_str("WeakSet")->Equals(env.local(), ws->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* ws_table =
|
|
GetProperty(env->GetIsolate(), ws, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, ws_table->GetType());
|
|
CHECK_GT(ws_table->GetChildrenCount(), 0);
|
|
int weak_entries = 0;
|
|
for (int i = 0, count = ws_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = ws_table->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
|
|
if (k->GetId() == prop->GetToNode()->GetId()) {
|
|
++weak_entries;
|
|
}
|
|
}
|
|
CHECK_EQ(1, weak_entries);
|
|
const v8::HeapGraphNode* ws_s =
|
|
GetProperty(env->GetIsolate(), ws, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(ws_s);
|
|
CHECK_EQ(s->GetId(), ws_s->GetId());
|
|
|
|
const v8::HeapGraphNode* wm = GetProperty(env->GetIsolate(), global,
|
|
v8::HeapGraphEdge::kProperty, "wm");
|
|
CHECK(wm);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, wm->GetType());
|
|
CHECK(v8_str("WeakMap")->Equals(env.local(), wm->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* wm_table =
|
|
GetProperty(env->GetIsolate(), wm, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, wm_table->GetType());
|
|
CHECK_GT(wm_table->GetChildrenCount(), 0);
|
|
weak_entries = 0;
|
|
for (int i = 0, count = wm_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = wm_table->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++weak_entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, weak_entries); // Key and value are weak.
|
|
const v8::HeapGraphNode* wm_s =
|
|
GetProperty(env->GetIsolate(), wm, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(wm_s);
|
|
CHECK_EQ(s->GetId(), wm_s->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotCollection) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"k = {}; v = {}; s = 'str';\n"
|
|
"set = new Set(); set.add(k); set.add(v); set[s] = s;\n"
|
|
"map = new Map(); map.set(k, v); map[s] = s;\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* k =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "k");
|
|
CHECK(k);
|
|
const v8::HeapGraphNode* v =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "v");
|
|
CHECK(v);
|
|
const v8::HeapGraphNode* s =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "s");
|
|
CHECK(s);
|
|
|
|
const v8::HeapGraphNode* set = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "set");
|
|
CHECK(set);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, set->GetType());
|
|
CHECK(v8_str("Set")->Equals(env.local(), set->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* set_table = GetProperty(
|
|
env->GetIsolate(), set, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, set_table->GetType());
|
|
CHECK_GT(set_table->GetChildrenCount(), 0);
|
|
int entries = 0;
|
|
for (int i = 0, count = set_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = set_table->GetChild(i);
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, entries);
|
|
const v8::HeapGraphNode* set_s =
|
|
GetProperty(env->GetIsolate(), set, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(set_s);
|
|
CHECK_EQ(s->GetId(), set_s->GetId());
|
|
|
|
const v8::HeapGraphNode* map = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "map");
|
|
CHECK(map);
|
|
CHECK_EQ(v8::HeapGraphNode::kObject, map->GetType());
|
|
CHECK(v8_str("Map")->Equals(env.local(), map->GetName()).FromJust());
|
|
|
|
const v8::HeapGraphNode* map_table = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "table");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, map_table->GetType());
|
|
CHECK_GT(map_table->GetChildrenCount(), 0);
|
|
entries = 0;
|
|
for (int i = 0, count = map_table->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = map_table->GetChild(i);
|
|
const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
|
|
if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
|
|
++entries;
|
|
}
|
|
}
|
|
CHECK_EQ(2, entries);
|
|
const v8::HeapGraphNode* map_s =
|
|
GetProperty(env->GetIsolate(), map, v8::HeapGraphEdge::kProperty, "str");
|
|
CHECK(map_s);
|
|
CHECK_EQ(s->GetId(), map_s->GetId());
|
|
}
|
|
|
|
TEST(HeapSnapshotMap) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function Z() { this.foo = {}; this.bar = 0; }\n"
|
|
"z = new Z();\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* z =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "z");
|
|
CHECK(z);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(env->GetIsolate(), z, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
CHECK(
|
|
GetProperty(env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "map"));
|
|
CHECK(GetProperty(env->GetIsolate(), map, v8::HeapGraphEdge::kInternal,
|
|
"prototype"));
|
|
const v8::HeapGraphNode* parent_map = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "back_pointer");
|
|
CHECK(parent_map);
|
|
|
|
CHECK(GetProperty(env->GetIsolate(), map, v8::HeapGraphEdge::kInternal,
|
|
"back_pointer"));
|
|
CHECK(GetProperty(env->GetIsolate(), map, v8::HeapGraphEdge::kInternal,
|
|
"descriptors"));
|
|
CHECK(GetProperty(env->GetIsolate(), parent_map, v8::HeapGraphEdge::kWeak,
|
|
"transition"));
|
|
}
|
|
|
|
TEST(HeapSnapshotInternalReferences) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::Local<v8::ObjectTemplate> global_template =
|
|
v8::ObjectTemplate::New(isolate);
|
|
global_template->SetInternalFieldCount(2);
|
|
LocalContext env(nullptr, global_template);
|
|
v8::Local<v8::Object> global_proxy = env->Global();
|
|
v8::Local<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
|
|
CHECK_EQ(2, global->InternalFieldCount());
|
|
v8::Local<v8::Object> obj = v8::Object::New(isolate);
|
|
global->SetInternalField(0, v8_num(17));
|
|
global->SetInternalField(1, obj);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
|
|
// The first reference will not present, because it's a Smi.
|
|
CHECK(!GetProperty(env->GetIsolate(), global_node,
|
|
v8::HeapGraphEdge::kInternal, "0"));
|
|
// The second reference is to an object.
|
|
CHECK(GetProperty(env->GetIsolate(), global_node,
|
|
v8::HeapGraphEdge::kInternal, "1"));
|
|
}
|
|
|
|
TEST(HeapSnapshotEphemeron) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"class KeyClass{};\n"
|
|
"class ValueClass{};\n"
|
|
"var wm = new WeakMap();\n"
|
|
"function foo(key) { wm.set(key, new ValueClass()); }\n"
|
|
"var key = new KeyClass();\n"
|
|
"foo(key);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
|
|
const v8::HeapGraphNode* key = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "key");
|
|
CHECK(key);
|
|
bool success = false;
|
|
for (int i = 0, count = key->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* edge = key->GetChild(i);
|
|
const v8::HeapGraphNode* child = edge->GetToNode();
|
|
if (!strcmp("ValueClass", GetName(child))) {
|
|
v8::String::Utf8Value edge_name(CcTest::isolate(), edge->GetName());
|
|
CHECK(EndsWith(*edge_name, " / key KeyClass in WeakMap"));
|
|
success = true;
|
|
break;
|
|
}
|
|
}
|
|
CHECK(success);
|
|
}
|
|
|
|
TEST(HeapSnapshotAddressReuse) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"var a = [];\n"
|
|
"for (var i = 0; i < 10000; ++i)\n"
|
|
" a[i] = new A();\n");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
v8::SnapshotObjectId maxId1 = snapshot1->GetMaxSnapshotJSObjectId();
|
|
|
|
CompileRun(
|
|
"for (var i = 0; i < 10000; ++i)\n"
|
|
" a[i] = new A();\n");
|
|
CcTest::CollectAllGarbage();
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
|
|
const v8::HeapGraphNode* array_node = GetProperty(
|
|
env->GetIsolate(), global2, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(array_node);
|
|
int wrong_count = 0;
|
|
for (int i = 0, count = array_node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = array_node->GetChild(i);
|
|
if (prop->GetType() != v8::HeapGraphEdge::kElement)
|
|
continue;
|
|
v8::SnapshotObjectId id = prop->GetToNode()->GetId();
|
|
if (id < maxId1)
|
|
++wrong_count;
|
|
}
|
|
CHECK_EQ(0, wrong_count);
|
|
}
|
|
|
|
|
|
TEST(HeapEntryIdsAndArrayShift) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function AnObject() {\n"
|
|
" this.first = 'first';\n"
|
|
" this.second = 'second';\n"
|
|
"}\n"
|
|
"var a = new Array();\n"
|
|
"for (var i = 0; i < 10; ++i)\n"
|
|
" a.push(new AnObject());\n");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
|
|
CompileRun(
|
|
"for (var i = 0; i < 1; ++i)\n"
|
|
" a.shift();\n");
|
|
|
|
CcTest::CollectAllGarbage();
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE(0u, global1->GetId());
|
|
CHECK_EQ(global1->GetId(), global2->GetId());
|
|
|
|
const v8::HeapGraphNode* a1 = GetProperty(env->GetIsolate(), global1,
|
|
v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a1);
|
|
const v8::HeapGraphNode* k1 = GetProperty(
|
|
env->GetIsolate(), a1, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(k1);
|
|
const v8::HeapGraphNode* a2 = GetProperty(env->GetIsolate(), global2,
|
|
v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a2);
|
|
const v8::HeapGraphNode* k2 = GetProperty(
|
|
env->GetIsolate(), a2, v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(k2);
|
|
|
|
CHECK_EQ(a1->GetId(), a2->GetId());
|
|
CHECK_EQ(k1->GetId(), k2->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapEntryIdsAndGC) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A();\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot1 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot1));
|
|
|
|
CcTest::CollectAllGarbage();
|
|
|
|
const v8::HeapSnapshot* snapshot2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot2));
|
|
|
|
CHECK_GT(snapshot1->GetMaxSnapshotJSObjectId(), 7000u);
|
|
CHECK(snapshot1->GetMaxSnapshotJSObjectId() <=
|
|
snapshot2->GetMaxSnapshotJSObjectId());
|
|
|
|
const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
|
|
const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
|
|
CHECK_NE(0u, global1->GetId());
|
|
CHECK_EQ(global1->GetId(), global2->GetId());
|
|
const v8::HeapGraphNode* A1 = GetProperty(env->GetIsolate(), global1,
|
|
v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK(A1);
|
|
const v8::HeapGraphNode* A2 = GetProperty(env->GetIsolate(), global2,
|
|
v8::HeapGraphEdge::kProperty, "A");
|
|
CHECK(A2);
|
|
CHECK_NE(0u, A1->GetId());
|
|
CHECK_EQ(A1->GetId(), A2->GetId());
|
|
const v8::HeapGraphNode* B1 = GetProperty(env->GetIsolate(), global1,
|
|
v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK(B1);
|
|
const v8::HeapGraphNode* B2 = GetProperty(env->GetIsolate(), global2,
|
|
v8::HeapGraphEdge::kProperty, "B");
|
|
CHECK(B2);
|
|
CHECK_NE(0u, B1->GetId());
|
|
CHECK_EQ(B1->GetId(), B2->GetId());
|
|
const v8::HeapGraphNode* a1 = GetProperty(env->GetIsolate(), global1,
|
|
v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a1);
|
|
const v8::HeapGraphNode* a2 = GetProperty(env->GetIsolate(), global2,
|
|
v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(a2);
|
|
CHECK_NE(0u, a1->GetId());
|
|
CHECK_EQ(a1->GetId(), a2->GetId());
|
|
const v8::HeapGraphNode* b1 = GetProperty(env->GetIsolate(), global1,
|
|
v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b1);
|
|
const v8::HeapGraphNode* b2 = GetProperty(env->GetIsolate(), global2,
|
|
v8::HeapGraphEdge::kProperty, "b");
|
|
CHECK(b2);
|
|
CHECK_NE(0u, b1->GetId());
|
|
CHECK_EQ(b1->GetId(), b2->GetId());
|
|
}
|
|
|
|
namespace {
|
|
|
|
class TestJSONStream : public v8::OutputStream {
|
|
public:
|
|
TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {}
|
|
explicit TestJSONStream(int abort_countdown)
|
|
: eos_signaled_(0), abort_countdown_(abort_countdown) {}
|
|
~TestJSONStream() override = default;
|
|
void EndOfStream() override { ++eos_signaled_; }
|
|
WriteResult WriteAsciiChunk(char* buffer, int chars_written) override {
|
|
if (abort_countdown_ > 0) --abort_countdown_;
|
|
if (abort_countdown_ == 0) return kAbort;
|
|
CHECK_GT(chars_written, 0);
|
|
i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0');
|
|
i::MemCopy(chunk.start(), buffer, chars_written);
|
|
return kContinue;
|
|
}
|
|
virtual WriteResult WriteUint32Chunk(uint32_t* buffer, int chars_written) {
|
|
UNREACHABLE();
|
|
}
|
|
void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); }
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int size() { return buffer_.size(); }
|
|
|
|
private:
|
|
i::Collector<char> buffer_;
|
|
int eos_signaled_;
|
|
int abort_countdown_;
|
|
};
|
|
|
|
class OneByteResource : public v8::String::ExternalOneByteStringResource {
|
|
public:
|
|
explicit OneByteResource(i::Vector<char> string) : data_(string.start()) {
|
|
length_ = string.length();
|
|
}
|
|
const char* data() const override { return data_; }
|
|
size_t length() const override { return length_; }
|
|
|
|
private:
|
|
const char* data_;
|
|
size_t length_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
TEST(HeapSnapshotJSONSerialization) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
LocalContext env;
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
#define STRING_LITERAL_FOR_TEST \
|
|
"\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\""
|
|
CompileRun(
|
|
"function A(s) { this.s = s; }\n"
|
|
"function B(x) { this.x = x; }\n"
|
|
"var a = new A(" STRING_LITERAL_FOR_TEST ");\n"
|
|
"var b = new B(a);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
TestJSONStream stream;
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
i::ScopedVector<char> json(stream.size());
|
|
stream.WriteTo(json);
|
|
|
|
// Verify that snapshot string is valid JSON.
|
|
OneByteResource* json_res = new OneByteResource(json);
|
|
v8::Local<v8::String> json_string =
|
|
v8::String::NewExternalOneByte(env->GetIsolate(), json_res)
|
|
.ToLocalChecked();
|
|
env->Global()
|
|
->Set(env.local(), v8_str("json_snapshot"), json_string)
|
|
.FromJust();
|
|
v8::Local<v8::Value> snapshot_parse_result = CompileRun(
|
|
"var parsed = JSON.parse(json_snapshot); true;");
|
|
CHECK(!snapshot_parse_result.IsEmpty());
|
|
|
|
// Verify that snapshot object has required fields.
|
|
v8::Local<v8::Object> parsed_snapshot =
|
|
env->Global()
|
|
->Get(env.local(), v8_str("parsed"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("snapshot")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("nodes")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("edges")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("locations")).FromJust());
|
|
CHECK(parsed_snapshot->Has(env.local(), v8_str("strings")).FromJust());
|
|
|
|
// Get node and edge "member" offsets.
|
|
v8::Local<v8::Value> meta_analysis_result = CompileRun(
|
|
"var meta = parsed.snapshot.meta;\n"
|
|
"var edge_count_offset = meta.node_fields.indexOf('edge_count');\n"
|
|
"var node_fields_count = meta.node_fields.length;\n"
|
|
"var edge_fields_count = meta.edge_fields.length;\n"
|
|
"var edge_type_offset = meta.edge_fields.indexOf('type');\n"
|
|
"var edge_name_offset = meta.edge_fields.indexOf('name_or_index');\n"
|
|
"var edge_to_node_offset = meta.edge_fields.indexOf('to_node');\n"
|
|
"var property_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('property');\n"
|
|
"var shortcut_type ="
|
|
" meta.edge_types[edge_type_offset].indexOf('shortcut');\n"
|
|
"var node_count = parsed.nodes.length / node_fields_count;\n"
|
|
"var first_edge_indexes = parsed.first_edge_indexes = [];\n"
|
|
"for (var i = 0, first_edge_index = 0; i < node_count; ++i) {\n"
|
|
" first_edge_indexes[i] = first_edge_index;\n"
|
|
" first_edge_index += edge_fields_count *\n"
|
|
" parsed.nodes[i * node_fields_count + edge_count_offset];\n"
|
|
"}\n"
|
|
"first_edge_indexes[node_count] = first_edge_index;\n");
|
|
CHECK(!meta_analysis_result.IsEmpty());
|
|
|
|
// A helper function for processing encoded nodes.
|
|
CompileRun(
|
|
"function GetChildPosByProperty(pos, prop_name, prop_type) {\n"
|
|
" var nodes = parsed.nodes;\n"
|
|
" var edges = parsed.edges;\n"
|
|
" var strings = parsed.strings;\n"
|
|
" var node_ordinal = pos / node_fields_count;\n"
|
|
" for (var i = parsed.first_edge_indexes[node_ordinal],\n"
|
|
" count = parsed.first_edge_indexes[node_ordinal + 1];\n"
|
|
" i < count; i += edge_fields_count) {\n"
|
|
" if (edges[i + edge_type_offset] === prop_type\n"
|
|
" && strings[edges[i + edge_name_offset]] === prop_name)\n"
|
|
" return edges[i + edge_to_node_offset];\n"
|
|
" }\n"
|
|
" return null;\n"
|
|
"}\n");
|
|
// Get the string index using the path: <root> -> <global>.b.x.s
|
|
v8::Local<v8::Value> string_obj_pos_val = CompileRun(
|
|
"GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty(\n"
|
|
" GetChildPosByProperty("
|
|
" parsed.edges[edge_fields_count + edge_to_node_offset],"
|
|
" \"b\", property_type),\n"
|
|
" \"x\", property_type),"
|
|
" \"s\", property_type)");
|
|
CHECK(!string_obj_pos_val.IsEmpty());
|
|
int string_obj_pos = static_cast<int>(
|
|
string_obj_pos_val->ToNumber(env.local()).ToLocalChecked()->Value());
|
|
v8::Local<v8::Object> nodes_array =
|
|
parsed_snapshot->Get(env.local(), v8_str("nodes"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
int string_index =
|
|
static_cast<int>(nodes_array->Get(env.local(), string_obj_pos + 1)
|
|
.ToLocalChecked()
|
|
->ToNumber(env.local())
|
|
.ToLocalChecked()
|
|
->Value());
|
|
CHECK_GT(string_index, 0);
|
|
v8::Local<v8::Object> strings_array =
|
|
parsed_snapshot->Get(env.local(), v8_str("strings"))
|
|
.ToLocalChecked()
|
|
->ToObject(env.local())
|
|
.ToLocalChecked();
|
|
v8::Local<v8::String> string = strings_array->Get(env.local(), string_index)
|
|
.ToLocalChecked()
|
|
->ToString(env.local())
|
|
.ToLocalChecked();
|
|
v8::Local<v8::String> ref_string = CompileRun(STRING_LITERAL_FOR_TEST)
|
|
->ToString(env.local())
|
|
.ToLocalChecked();
|
|
#undef STRING_LITERAL_FOR_TEST
|
|
CHECK_EQ(0, strcmp(*v8::String::Utf8Value(env->GetIsolate(), ref_string),
|
|
*v8::String::Utf8Value(env->GetIsolate(), string)));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotJSONSerializationAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
TestJSONStream stream(5);
|
|
snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
|
|
CHECK_GT(stream.size(), 0);
|
|
CHECK_EQ(0, stream.eos_signaled());
|
|
}
|
|
|
|
namespace {
|
|
|
|
class TestStatsStream : public v8::OutputStream {
|
|
public:
|
|
TestStatsStream()
|
|
: eos_signaled_(0),
|
|
updates_written_(0),
|
|
entries_count_(0),
|
|
entries_size_(0),
|
|
intervals_count_(0),
|
|
first_interval_index_(-1) { }
|
|
TestStatsStream(const TestStatsStream& stream)
|
|
|
|
= default;
|
|
~TestStatsStream() override = default;
|
|
void EndOfStream() override { ++eos_signaled_; }
|
|
WriteResult WriteAsciiChunk(char* buffer, int chars_written) override {
|
|
UNREACHABLE();
|
|
}
|
|
WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* buffer,
|
|
int updates_written) override {
|
|
++intervals_count_;
|
|
CHECK(updates_written);
|
|
updates_written_ += updates_written;
|
|
entries_count_ = 0;
|
|
if (first_interval_index_ == -1 && updates_written != 0)
|
|
first_interval_index_ = buffer[0].index;
|
|
for (int i = 0; i < updates_written; ++i) {
|
|
entries_count_ += buffer[i].count;
|
|
entries_size_ += buffer[i].size;
|
|
}
|
|
|
|
return kContinue;
|
|
}
|
|
int eos_signaled() { return eos_signaled_; }
|
|
int updates_written() { return updates_written_; }
|
|
uint32_t entries_count() const { return entries_count_; }
|
|
uint32_t entries_size() const { return entries_size_; }
|
|
int intervals_count() const { return intervals_count_; }
|
|
int first_interval_index() const { return first_interval_index_; }
|
|
|
|
private:
|
|
int eos_signaled_;
|
|
int updates_written_;
|
|
uint32_t entries_count_;
|
|
uint32_t entries_size_;
|
|
int intervals_count_;
|
|
int first_interval_index_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
static TestStatsStream GetHeapStatsUpdate(
|
|
v8::HeapProfiler* heap_profiler,
|
|
v8::SnapshotObjectId* object_id = nullptr) {
|
|
TestStatsStream stream;
|
|
int64_t timestamp = -1;
|
|
v8::SnapshotObjectId last_seen_id =
|
|
heap_profiler->GetHeapStats(&stream, ×tamp);
|
|
if (object_id)
|
|
*object_id = last_seen_id;
|
|
CHECK_NE(-1, timestamp);
|
|
CHECK_EQ(1, stream.eos_signaled());
|
|
return stream;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotObjectsStats) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
heap_profiler->StartTrackingHeapObjects();
|
|
// We have to call GC 6 times. In other case the garbage will be
|
|
// the reason of flakiness.
|
|
for (int i = 0; i < 6; ++i) {
|
|
CcTest::CollectAllGarbage();
|
|
}
|
|
|
|
v8::SnapshotObjectId initial_id;
|
|
{
|
|
// Single chunk of data expected in update. Initial data.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&initial_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, stats_update.entries_size());
|
|
CHECK_EQ(0, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing has happened.
|
|
v8::SnapshotObjectId same_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &same_id).updates_written());
|
|
CHECK_EQ(initial_id, same_id);
|
|
|
|
{
|
|
v8::SnapshotObjectId additional_string_id;
|
|
v8::HandleScope inner_scope_1(env->GetIsolate());
|
|
v8_str("string1");
|
|
{
|
|
// Single chunk of data with one new entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
|
|
&additional_string_id);
|
|
CHECK_LT(same_id, additional_string_id);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, stats_update.entries_size());
|
|
CHECK_EQ(1u, stats_update.entries_count());
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
// No data expected in update because nothing happened.
|
|
v8::SnapshotObjectId last_id;
|
|
CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &last_id).updates_written());
|
|
CHECK_EQ(additional_string_id, last_id);
|
|
|
|
{
|
|
v8::HandleScope inner_scope_2(env->GetIsolate());
|
|
v8_str("string2");
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
v8::HandleScope inner_scope_3(env->GetIsolate());
|
|
v8_str("string3");
|
|
v8_str("string4");
|
|
|
|
{
|
|
// Single chunk of data with three new entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, entries_size = stats_update.entries_size());
|
|
CHECK_EQ(3u, stats_update.entries_count());
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with two left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_GT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(1u, stats_update.entries_count());
|
|
// Two strings from forth interval were released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0u, stats_update.entries_size());
|
|
CHECK_EQ(0u, stats_update.entries_count());
|
|
// The last string from forth interval was released.
|
|
CHECK_EQ(4, stats_update.first_interval_index());
|
|
}
|
|
}
|
|
{
|
|
// Single chunk of data with 0 left entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_EQ(0u, stats_update.entries_size());
|
|
CHECK_EQ(0u, stats_update.entries_count());
|
|
// The only string from the second interval was released.
|
|
CHECK_EQ(2, stats_update.first_interval_index());
|
|
}
|
|
|
|
v8::Local<v8::Array> array = v8::Array::New(env->GetIsolate());
|
|
CHECK_EQ(0u, array->Length());
|
|
// Force array's buffer allocation.
|
|
array->Set(env.local(), 2, v8_num(7)).FromJust();
|
|
|
|
uint32_t entries_size;
|
|
{
|
|
// Single chunk of data with 2 entries expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
CHECK_EQ(1, stats_update.updates_written());
|
|
CHECK_LT(0u, entries_size = stats_update.entries_size());
|
|
// They are the array and its buffer.
|
|
CHECK_EQ(2u, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
for (int i = 0; i < 100; ++i)
|
|
array->Set(env.local(), i, v8_num(i)).FromJust();
|
|
|
|
{
|
|
// Single chunk of data with 1 entry expected in update.
|
|
TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
|
|
CHECK_EQ(1, stats_update.intervals_count());
|
|
// The first interval was changed because old buffer was collected.
|
|
// The second interval was changed because new buffer was allocated.
|
|
CHECK_EQ(2, stats_update.updates_written());
|
|
CHECK_LT(entries_size, stats_update.entries_size());
|
|
CHECK_EQ(2u, stats_update.entries_count());
|
|
CHECK_EQ(8, stats_update.first_interval_index());
|
|
}
|
|
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
TEST(HeapObjectIds) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const int kLength = 10;
|
|
v8::Local<v8::Object> objects[kLength];
|
|
v8::SnapshotObjectId ids[kLength];
|
|
|
|
heap_profiler->StartTrackingHeapObjects(false);
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
objects[i] = v8::Object::New(isolate);
|
|
}
|
|
GetHeapStatsUpdate(heap_profiler);
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_NE(v8::HeapProfiler::kUnknownObjectId, id);
|
|
ids[i] = id;
|
|
}
|
|
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
CcTest::CollectAllAvailableGarbage();
|
|
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_EQ(ids[i], id);
|
|
v8::Local<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
|
|
CHECK(objects[i]->Equals(env.local(), obj).FromJust());
|
|
}
|
|
|
|
heap_profiler->ClearObjectIds();
|
|
for (int i = 0; i < kLength; i++) {
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
|
|
CHECK_EQ(v8::HeapProfiler::kUnknownObjectId, id);
|
|
v8::Local<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
|
|
CHECK(obj.IsEmpty());
|
|
}
|
|
}
|
|
|
|
|
|
static void CheckChildrenIds(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node,
|
|
int level, int max_level) {
|
|
if (level > max_level) return;
|
|
CHECK_EQ(node, snapshot->GetNodeById(node->GetId()));
|
|
for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = node->GetChild(i);
|
|
const v8::HeapGraphNode* child =
|
|
snapshot->GetNodeById(prop->GetToNode()->GetId());
|
|
CHECK_EQ(prop->GetToNode()->GetId(), child->GetId());
|
|
CHECK_EQ(prop->GetToNode(), child);
|
|
CheckChildrenIds(snapshot, child, level + 1, max_level);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetNodeById) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* root = snapshot->GetRoot();
|
|
CheckChildrenIds(snapshot, root, 0, 3);
|
|
// Check a big id, which should not exist yet.
|
|
CHECK(!snapshot->GetNodeById(0x1000000UL));
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotGetSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "globalObject");
|
|
CHECK(global_object);
|
|
|
|
v8::Local<v8::Value> globalObjectHandle =
|
|
env->Global()->Get(env.local(), v8_str("globalObject")).ToLocalChecked();
|
|
CHECK(!globalObjectHandle.IsEmpty());
|
|
CHECK(globalObjectHandle->IsObject());
|
|
|
|
v8::SnapshotObjectId id = heap_profiler->GetObjectId(globalObjectHandle);
|
|
CHECK_NE(v8::HeapProfiler::kUnknownObjectId, id);
|
|
CHECK_EQ(id, global_object->GetId());
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotUnknownSnapshotObjectId) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("globalObject = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* node =
|
|
snapshot->GetNodeById(v8::HeapProfiler::kUnknownObjectId);
|
|
CHECK(!node);
|
|
}
|
|
|
|
|
|
namespace {
|
|
|
|
class TestActivityControl : public v8::ActivityControl {
|
|
public:
|
|
explicit TestActivityControl(int abort_count)
|
|
: done_(0),
|
|
total_(0),
|
|
abort_count_(abort_count),
|
|
reported_finish_(false) {}
|
|
ControlOption ReportProgressValue(int done, int total) override {
|
|
done_ = done;
|
|
total_ = total;
|
|
CHECK_LE(done_, total_);
|
|
if (done_ == total_) {
|
|
CHECK(!reported_finish_);
|
|
reported_finish_ = true;
|
|
}
|
|
return --abort_count_ != 0 ? kContinue : kAbort;
|
|
}
|
|
int done() { return done_; }
|
|
int total() { return total_; }
|
|
|
|
private:
|
|
int done_;
|
|
int total_;
|
|
int abort_count_;
|
|
bool reported_finish_;
|
|
};
|
|
|
|
} // namespace
|
|
|
|
|
|
TEST(TakeHeapSnapshotAborting) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const int snapshots_count = heap_profiler->GetSnapshotCount();
|
|
TestActivityControl aborting_control(1);
|
|
const v8::HeapSnapshot* no_snapshot =
|
|
heap_profiler->TakeHeapSnapshot(&aborting_control);
|
|
CHECK(!no_snapshot);
|
|
CHECK_EQ(snapshots_count, heap_profiler->GetSnapshotCount());
|
|
CHECK_GT(aborting_control.total(), aborting_control.done());
|
|
|
|
TestActivityControl control(-1); // Don't abort.
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot(&control);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
CHECK(snapshot);
|
|
CHECK_EQ(snapshots_count + 1, heap_profiler->GetSnapshotCount());
|
|
CHECK_EQ(control.total(), control.done());
|
|
CHECK_GT(control.total(), 0);
|
|
}
|
|
|
|
TEST(TakeHeapSnapshotReportFinishOnce) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
TestActivityControl control(-1);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot(&control);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
CHECK_EQ(control.total(), control.done());
|
|
CHECK_GT(control.total(), 0);
|
|
}
|
|
|
|
namespace {
|
|
|
|
class EmbedderGraphBuilder : public v8::PersistentHandleVisitor {
|
|
public:
|
|
class Node : public v8::EmbedderGraph::Node {
|
|
public:
|
|
Node(const char* name, size_t size) : name_(name), size_(size) {}
|
|
// v8::EmbedderGraph::Node
|
|
const char* Name() override { return name_; }
|
|
size_t SizeInBytes() override { return size_; }
|
|
|
|
private:
|
|
const char* name_;
|
|
size_t size_;
|
|
};
|
|
|
|
class Group : public Node {
|
|
public:
|
|
explicit Group(const char* name) : Node(name, 0) {}
|
|
// v8::EmbedderGraph::EmbedderNode
|
|
bool IsRootNode() override { return true; }
|
|
};
|
|
|
|
EmbedderGraphBuilder(v8::Isolate* isolate, v8::EmbedderGraph* graph)
|
|
: isolate_(isolate), graph_(graph) {
|
|
classid_to_group_[0] = nullptr;
|
|
classid_to_group_[1] =
|
|
graph->AddNode(std::unique_ptr<Group>(new Group("aaa-group")));
|
|
classid_to_group_[2] =
|
|
graph->AddNode(std::unique_ptr<Group>(new Group("ccc-group")));
|
|
}
|
|
|
|
static void BuildEmbedderGraph(v8::Isolate* isolate, v8::EmbedderGraph* graph,
|
|
void* data) {
|
|
EmbedderGraphBuilder builder(isolate, graph);
|
|
isolate->VisitHandlesWithClassIds(&builder);
|
|
}
|
|
|
|
void VisitPersistentHandle(v8::Persistent<v8::Value>* value,
|
|
uint16_t class_id) override {
|
|
v8::Local<v8::Value> wrapper = v8::Local<v8::Value>::New(
|
|
isolate_, v8::Persistent<v8::Value>::Cast(*value));
|
|
if (class_id == 1) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(CcTest::isolate(), wrapper);
|
|
DCHECK(!strcmp(*utf8, "AAA") || !strcmp(*utf8, "BBB"));
|
|
v8::EmbedderGraph::Node* node = graph_->V8Node(wrapper);
|
|
v8::EmbedderGraph::Node* group = classid_to_group_[1];
|
|
graph_->AddEdge(node, group);
|
|
graph_->AddEdge(group, node);
|
|
}
|
|
} else if (class_id == 2) {
|
|
if (wrapper->IsString()) {
|
|
v8::String::Utf8Value utf8(CcTest::isolate(), wrapper);
|
|
DCHECK(!strcmp(*utf8, "CCC"));
|
|
v8::EmbedderGraph::Node* node = graph_->V8Node(wrapper);
|
|
v8::EmbedderGraph::Node* group = classid_to_group_[2];
|
|
graph_->AddEdge(node, group);
|
|
graph_->AddEdge(group, node);
|
|
}
|
|
} else {
|
|
UNREACHABLE();
|
|
}
|
|
}
|
|
|
|
private:
|
|
v8::Isolate* isolate_;
|
|
v8::EmbedderGraph* graph_;
|
|
v8::EmbedderGraph::Node* classid_to_group_[3];
|
|
};
|
|
|
|
} // namespace
|
|
|
|
|
|
static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent,
|
|
v8::HeapGraphNode::Type type,
|
|
const char* name) {
|
|
for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode();
|
|
if (node->GetType() == type && strcmp(name,
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) {
|
|
return node;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
TEST(HeapSnapshotRetainedObjectInfo) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
heap_profiler->AddBuildEmbedderGraphCallback(
|
|
EmbedderGraphBuilder::BuildEmbedderGraph, nullptr);
|
|
v8::Persistent<v8::String> p_AAA(isolate, v8_str("AAA"));
|
|
p_AAA.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_BBB(isolate, v8_str("BBB"));
|
|
p_BBB.SetWrapperClassId(1);
|
|
v8::Persistent<v8::String> p_CCC(isolate, v8_str("CCC"));
|
|
p_CCC.SetWrapperClassId(2);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* native_group_aaa =
|
|
GetNode(snapshot->GetRoot(), v8::HeapGraphNode::kNative, "aaa-group");
|
|
CHECK(native_group_aaa);
|
|
const v8::HeapGraphNode* native_group_ccc =
|
|
GetNode(snapshot->GetRoot(), v8::HeapGraphNode::kNative, "ccc-group");
|
|
CHECK(native_group_ccc);
|
|
|
|
const v8::HeapGraphNode* n_AAA =
|
|
GetNode(native_group_aaa, v8::HeapGraphNode::kString, "AAA");
|
|
CHECK(n_AAA);
|
|
const v8::HeapGraphNode* n_BBB =
|
|
GetNode(native_group_aaa, v8::HeapGraphNode::kString, "BBB");
|
|
CHECK(n_BBB);
|
|
const v8::HeapGraphNode* n_CCC =
|
|
GetNode(native_group_ccc, v8::HeapGraphNode::kString, "CCC");
|
|
CHECK(n_CCC);
|
|
|
|
CHECK_EQ(native_group_aaa, GetChildByName(n_AAA, "aaa-group"));
|
|
CHECK_EQ(native_group_aaa, GetChildByName(n_BBB, "aaa-group"));
|
|
CHECK_EQ(native_group_ccc, GetChildByName(n_CCC, "ccc-group"));
|
|
}
|
|
|
|
TEST(DeleteAllHeapSnapshots) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK(heap_profiler->TakeHeapSnapshot());
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
heap_profiler->DeleteAllHeapSnapshots();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
}
|
|
|
|
|
|
static bool FindHeapSnapshot(v8::HeapProfiler* profiler,
|
|
const v8::HeapSnapshot* snapshot) {
|
|
int length = profiler->GetSnapshotCount();
|
|
for (int i = 0; i < length; i++) {
|
|
if (snapshot == profiler->GetHeapSnapshot(i)) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
TEST(DeleteHeapSnapshot) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
const v8::HeapSnapshot* s1 = heap_profiler->TakeHeapSnapshot();
|
|
|
|
CHECK(s1);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(FindHeapSnapshot(heap_profiler, s1));
|
|
const_cast<v8::HeapSnapshot*>(s1)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s1));
|
|
|
|
const v8::HeapSnapshot* s2 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(s2);
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(FindHeapSnapshot(heap_profiler, s2));
|
|
const v8::HeapSnapshot* s3 = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(s3);
|
|
CHECK_EQ(2, heap_profiler->GetSnapshotCount());
|
|
CHECK_NE(s2, s3);
|
|
CHECK(FindHeapSnapshot(heap_profiler, s3));
|
|
const_cast<v8::HeapSnapshot*>(s2)->Delete();
|
|
CHECK_EQ(1, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s2));
|
|
CHECK(FindHeapSnapshot(heap_profiler, s3));
|
|
const_cast<v8::HeapSnapshot*>(s3)->Delete();
|
|
CHECK_EQ(0, heap_profiler->GetSnapshotCount());
|
|
CHECK(!FindHeapSnapshot(heap_profiler, s3));
|
|
}
|
|
|
|
|
|
class NameResolver : public v8::HeapProfiler::ObjectNameResolver {
|
|
public:
|
|
const char* GetName(v8::Local<v8::Object> object) override {
|
|
return "Global object name";
|
|
}
|
|
};
|
|
|
|
|
|
TEST(GlobalObjectName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
NameResolver name_resolver;
|
|
const v8::HeapSnapshot* snapshot =
|
|
heap_profiler->TakeHeapSnapshot(nullptr, &name_resolver);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
CHECK_EQ(0,
|
|
strcmp("Object / Global object name",
|
|
const_cast<i::HeapEntry*>(
|
|
reinterpret_cast<const i::HeapEntry*>(global))->name()));
|
|
}
|
|
|
|
|
|
TEST(GlobalObjectFields) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("obj = {};");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* native_context =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kInternal,
|
|
"native_context");
|
|
CHECK(native_context);
|
|
const v8::HeapGraphNode* global_proxy = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kInternal, "global_proxy");
|
|
CHECK(global_proxy);
|
|
}
|
|
|
|
|
|
TEST(NoHandleLeaks) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("document = { URL:\"abcdefgh\" };");
|
|
|
|
i::Isolate* isolate = CcTest::i_isolate();
|
|
int count_before = i::HandleScope::NumberOfHandles(isolate);
|
|
heap_profiler->TakeHeapSnapshot();
|
|
int count_after = i::HandleScope::NumberOfHandles(isolate);
|
|
CHECK_EQ(count_before, count_after);
|
|
}
|
|
|
|
|
|
TEST(NodesIteration) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
// Verify that we can find this object by iteration.
|
|
const int nodes_count = snapshot->GetNodesCount();
|
|
int count = 0;
|
|
for (int i = 0; i < nodes_count; ++i) {
|
|
if (snapshot->GetNode(i) == global)
|
|
++count;
|
|
}
|
|
CHECK_EQ(1, count);
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForNode) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("a = { s_prop: \'value\', n_prop: \'value2\' };");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(heap_profiler->FindObjectById(global->GetId())->IsObject());
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
CHECK(js_global == heap_profiler->FindObjectById(global->GetId()));
|
|
const v8::HeapGraphNode* obj =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "a");
|
|
CHECK(heap_profiler->FindObjectById(obj->GetId())->IsObject());
|
|
v8::Local<v8::Object> js_obj = js_global->Get(env.local(), v8_str("a"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
CHECK(js_obj == heap_profiler->FindObjectById(obj->GetId()));
|
|
const v8::HeapGraphNode* s_prop = GetProperty(
|
|
env->GetIsolate(), obj, v8::HeapGraphEdge::kProperty, "s_prop");
|
|
v8::Local<v8::String> js_s_prop = js_obj->Get(env.local(), v8_str("s_prop"))
|
|
.ToLocalChecked()
|
|
.As<v8::String>();
|
|
CHECK(js_s_prop == heap_profiler->FindObjectById(s_prop->GetId()));
|
|
const v8::HeapGraphNode* n_prop = GetProperty(
|
|
env->GetIsolate(), obj, v8::HeapGraphEdge::kProperty, "n_prop");
|
|
v8::Local<v8::String> js_n_prop = js_obj->Get(env.local(), v8_str("n_prop"))
|
|
.ToLocalChecked()
|
|
.As<v8::String>();
|
|
CHECK(js_n_prop == heap_profiler->FindObjectById(n_prop->GetId()));
|
|
}
|
|
|
|
|
|
TEST(GetHeapValueForDeletedObject) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// It is impossible to delete a global property, so we are about to delete a
|
|
// property of the "a" object. Also, the "p" object can't be an empty one
|
|
// because the empty object is static and isn't actually deleted.
|
|
CompileRun("a = { p: { r: {} } };");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "a");
|
|
const v8::HeapGraphNode* prop =
|
|
GetProperty(env->GetIsolate(), obj, v8::HeapGraphEdge::kProperty, "p");
|
|
{
|
|
// Perform the check inside a nested local scope to avoid creating a
|
|
// reference to the object we are deleting.
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
CHECK(heap_profiler->FindObjectById(prop->GetId())->IsObject());
|
|
}
|
|
CompileRun("delete a.p;");
|
|
CHECK(heap_profiler->FindObjectById(prop->GetId()).IsEmpty());
|
|
}
|
|
|
|
|
|
static int StringCmp(const char* ref, i::String* act) {
|
|
std::unique_ptr<char[]> s_act = act->ToCString();
|
|
int result = strcmp(ref, s_act.get());
|
|
if (result != 0)
|
|
fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, s_act.get());
|
|
return result;
|
|
}
|
|
|
|
TEST(GetConstructor) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CompileRun(
|
|
"function Constructor1() {};\n"
|
|
"var obj1 = new Constructor1();\n"
|
|
"var Constructor2 = function() {};\n"
|
|
"var obj2 = new Constructor2();\n"
|
|
"var obj3 = {};\n"
|
|
"obj3.__proto__ = { constructor: function Constructor3() {} };\n"
|
|
"var obj4 = {};\n"
|
|
"// Slow properties\n"
|
|
"for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
|
|
"obj4.__proto__ = { constructor: function Constructor4() {} };\n"
|
|
"var obj5 = {};\n"
|
|
"var obj6 = {};\n"
|
|
"obj6.constructor = 6;");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
v8::Local<v8::Object> obj1 = js_global->Get(env.local(), v8_str("obj1"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj1 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj1));
|
|
CHECK(i::V8HeapExplorer::GetConstructor(*js_obj1));
|
|
v8::Local<v8::Object> obj2 = js_global->Get(env.local(), v8_str("obj2"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj2 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj2));
|
|
CHECK(i::V8HeapExplorer::GetConstructor(*js_obj2));
|
|
v8::Local<v8::Object> obj3 = js_global->Get(env.local(), v8_str("obj3"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj3 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj3));
|
|
CHECK(i::V8HeapExplorer::GetConstructor(*js_obj3));
|
|
v8::Local<v8::Object> obj4 = js_global->Get(env.local(), v8_str("obj4"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj4 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj4));
|
|
CHECK(i::V8HeapExplorer::GetConstructor(*js_obj4));
|
|
v8::Local<v8::Object> obj5 = js_global->Get(env.local(), v8_str("obj5"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj5 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj5));
|
|
CHECK(!i::V8HeapExplorer::GetConstructor(*js_obj5));
|
|
v8::Local<v8::Object> obj6 = js_global->Get(env.local(), v8_str("obj6"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj6 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj6));
|
|
CHECK(!i::V8HeapExplorer::GetConstructor(*js_obj6));
|
|
}
|
|
|
|
TEST(GetConstructorName) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CompileRun(
|
|
"function Constructor1() {};\n"
|
|
"var obj1 = new Constructor1();\n"
|
|
"var Constructor2 = function() {};\n"
|
|
"var obj2 = new Constructor2();\n"
|
|
"var obj3 = {};\n"
|
|
"obj3.__proto__ = { constructor: function Constructor3() {} };\n"
|
|
"var obj4 = {};\n"
|
|
"// Slow properties\n"
|
|
"for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
|
|
"obj4.__proto__ = { constructor: function Constructor4() {} };\n"
|
|
"var obj5 = {};\n"
|
|
"var obj6 = {};\n"
|
|
"obj6.constructor = 6;");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
v8::Local<v8::Object> obj1 = js_global->Get(env.local(), v8_str("obj1"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj1 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj1));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1)));
|
|
v8::Local<v8::Object> obj2 = js_global->Get(env.local(), v8_str("obj2"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj2 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj2));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2)));
|
|
v8::Local<v8::Object> obj3 = js_global->Get(env.local(), v8_str("obj3"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj3 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj3));
|
|
CHECK_EQ(0, StringCmp("Constructor3",
|
|
i::V8HeapExplorer::GetConstructorName(*js_obj3)));
|
|
v8::Local<v8::Object> obj4 = js_global->Get(env.local(), v8_str("obj4"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj4 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj4));
|
|
CHECK_EQ(0, StringCmp("Constructor4",
|
|
i::V8HeapExplorer::GetConstructorName(*js_obj4)));
|
|
v8::Local<v8::Object> obj5 = js_global->Get(env.local(), v8_str("obj5"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj5 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj5));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj5)));
|
|
v8::Local<v8::Object> obj6 = js_global->Get(env.local(), v8_str("obj6"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>();
|
|
i::Handle<i::JSObject> js_obj6 =
|
|
i::Handle<i::JSObject>::cast(v8::Utils::OpenHandle(*obj6));
|
|
CHECK_EQ(0, StringCmp(
|
|
"Object", i::V8HeapExplorer::GetConstructorName(*js_obj6)));
|
|
}
|
|
|
|
|
|
TEST(FastCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"get propWithGetter");
|
|
CHECK(func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"set propWithGetter");
|
|
CHECK(!func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"set propWithSetter");
|
|
CHECK(func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"get propWithSetter");
|
|
CHECK(!func);
|
|
}
|
|
|
|
|
|
TEST(FastCaseRedefinedAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"var obj1 = {};\n"
|
|
"Object.defineProperty(obj1, 'prop', { "
|
|
" get: function() { return 42; },\n"
|
|
" set: function(value) { return this.prop_ = value; },\n"
|
|
" configurable: true,\n"
|
|
" enumerable: true,\n"
|
|
"});\n"
|
|
"Object.defineProperty(obj1, 'prop', { "
|
|
" get: function() { return 153; },\n"
|
|
" set: function(value) { return this.prop_ = value; },\n"
|
|
" configurable: true,\n"
|
|
" enumerable: true,\n"
|
|
"});\n");
|
|
v8::Local<v8::Object> js_global =
|
|
env->Global()->GetPrototype().As<v8::Object>();
|
|
i::Handle<i::JSReceiver> js_obj1 =
|
|
v8::Utils::OpenHandle(*js_global->Get(env.local(), v8_str("obj1"))
|
|
.ToLocalChecked()
|
|
.As<v8::Object>());
|
|
USE(js_obj1);
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"get prop");
|
|
CHECK(func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"set prop");
|
|
CHECK(func);
|
|
}
|
|
|
|
|
|
TEST(SlowCaseAccessors) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("var obj1 = {};\n"
|
|
"for (var i = 0; i < 100; ++i) obj1['z' + i] = {};"
|
|
"obj1.__defineGetter__('propWithGetter', function Y() {\n"
|
|
" return 42;\n"
|
|
"});\n"
|
|
"obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
|
|
" return this.value_ = value;\n"
|
|
"});\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* obj1 = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "obj1");
|
|
CHECK(obj1);
|
|
const v8::HeapGraphNode* func;
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"get propWithGetter");
|
|
CHECK(func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"set propWithGetter");
|
|
CHECK(!func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"set propWithSetter");
|
|
CHECK(func);
|
|
func = GetProperty(env->GetIsolate(), obj1, v8::HeapGraphEdge::kProperty,
|
|
"get propWithSetter");
|
|
CHECK(!func);
|
|
}
|
|
|
|
|
|
TEST(HiddenPropertiesFastCase) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
LocalContext env;
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function C(x) { this.a = this; this.b = x; }\n"
|
|
"c = new C(2012);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* c =
|
|
GetProperty(isolate, global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK(c);
|
|
const v8::HeapGraphNode* hidden_props =
|
|
GetProperty(isolate, global, v8::HeapGraphEdge::kProperty, "<symbol>");
|
|
CHECK(!hidden_props);
|
|
|
|
v8::Local<v8::Value> cHandle =
|
|
env->Global()->Get(env.local(), v8_str("c")).ToLocalChecked();
|
|
CHECK(!cHandle.IsEmpty() && cHandle->IsObject());
|
|
cHandle->ToObject(env.local())
|
|
.ToLocalChecked()
|
|
->SetPrivate(env.local(),
|
|
v8::Private::ForApi(env->GetIsolate(), v8_str("key")),
|
|
v8_str("val"))
|
|
.FromJust();
|
|
|
|
snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
global = GetGlobalObject(snapshot);
|
|
c = GetProperty(isolate, global, v8::HeapGraphEdge::kProperty, "c");
|
|
CHECK(c);
|
|
hidden_props =
|
|
GetProperty(isolate, c, v8::HeapGraphEdge::kProperty, "<symbol>");
|
|
CHECK(hidden_props);
|
|
}
|
|
|
|
|
|
TEST(AccessorInfo) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("function foo(x) { }\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* foo = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK(foo);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(env->GetIsolate(), foo, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* descriptors = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "descriptors");
|
|
CHECK(descriptors);
|
|
const v8::HeapGraphNode* length_name = GetProperty(
|
|
env->GetIsolate(), descriptors, v8::HeapGraphEdge::kInternal, "2");
|
|
CHECK(length_name);
|
|
CHECK_EQ(0, strcmp("length", *v8::String::Utf8Value(env->GetIsolate(),
|
|
length_name->GetName())));
|
|
const v8::HeapGraphNode* length_accessor = GetProperty(
|
|
env->GetIsolate(), descriptors, v8::HeapGraphEdge::kInternal, "4");
|
|
CHECK(length_accessor);
|
|
CHECK_EQ(0, strcmp("system / AccessorInfo",
|
|
*v8::String::Utf8Value(env->GetIsolate(),
|
|
length_accessor->GetName())));
|
|
const v8::HeapGraphNode* name = GetProperty(
|
|
env->GetIsolate(), length_accessor, v8::HeapGraphEdge::kInternal, "name");
|
|
CHECK(name);
|
|
const v8::HeapGraphNode* getter =
|
|
GetProperty(env->GetIsolate(), length_accessor,
|
|
v8::HeapGraphEdge::kInternal, "getter");
|
|
CHECK(getter);
|
|
const v8::HeapGraphNode* setter =
|
|
GetProperty(env->GetIsolate(), length_accessor,
|
|
v8::HeapGraphEdge::kInternal, "setter");
|
|
CHECK(setter);
|
|
}
|
|
|
|
TEST(JSGeneratorObject) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
LocalContext env;
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"function* foo() { yield 1; }\n"
|
|
"g = foo();\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* g =
|
|
GetProperty(isolate, global, v8::HeapGraphEdge::kProperty, "g");
|
|
CHECK(g);
|
|
const v8::HeapGraphNode* function = GetProperty(
|
|
env->GetIsolate(), g, v8::HeapGraphEdge::kInternal, "function");
|
|
CHECK(function);
|
|
const v8::HeapGraphNode* context = GetProperty(
|
|
env->GetIsolate(), g, v8::HeapGraphEdge::kInternal, "context");
|
|
CHECK(context);
|
|
const v8::HeapGraphNode* receiver = GetProperty(
|
|
env->GetIsolate(), g, v8::HeapGraphEdge::kInternal, "receiver");
|
|
CHECK(receiver);
|
|
const v8::HeapGraphNode* parameters_and_registers =
|
|
GetProperty(env->GetIsolate(), g, v8::HeapGraphEdge::kInternal,
|
|
"parameters_and_registers");
|
|
CHECK(parameters_and_registers);
|
|
}
|
|
|
|
bool HasWeakEdge(const v8::HeapGraphNode* node) {
|
|
for (int i = 0; i < node->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* handle_edge = node->GetChild(i);
|
|
if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
|
|
bool HasWeakGlobalHandle() {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
|
|
CHECK(gc_roots);
|
|
const v8::HeapGraphNode* global_handles = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kSynthetic, "(Global handles)");
|
|
CHECK(global_handles);
|
|
return HasWeakEdge(global_handles);
|
|
}
|
|
|
|
|
|
static void PersistentHandleCallback(
|
|
const v8::WeakCallbackInfo<v8::Persistent<v8::Object> >& data) {
|
|
data.GetParameter()->Reset();
|
|
}
|
|
|
|
|
|
TEST(WeakGlobalHandle) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
|
|
CHECK(!HasWeakGlobalHandle());
|
|
|
|
v8::Persistent<v8::Object> handle;
|
|
|
|
handle.Reset(env->GetIsolate(), v8::Object::New(env->GetIsolate()));
|
|
handle.SetWeak(&handle, PersistentHandleCallback,
|
|
v8::WeakCallbackType::kParameter);
|
|
|
|
CHECK(HasWeakGlobalHandle());
|
|
CcTest::CollectAllGarbage();
|
|
EmptyMessageQueues(env->GetIsolate());
|
|
}
|
|
|
|
|
|
TEST(SfiAndJsFunctionWeakRefs) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun(
|
|
"fun = (function (x) { return function () { return x + 1; } })(1);");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* fun = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "fun");
|
|
CHECK(!HasWeakEdge(fun));
|
|
const v8::HeapGraphNode* shared = GetProperty(
|
|
env->GetIsolate(), fun, v8::HeapGraphEdge::kInternal, "shared");
|
|
CHECK(!HasWeakEdge(shared));
|
|
}
|
|
|
|
|
|
TEST(AllStrongGcRootsHaveNames) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("foo = {};");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* gc_roots = GetNode(
|
|
snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
|
|
CHECK(gc_roots);
|
|
const v8::HeapGraphNode* strong_roots = GetNode(
|
|
gc_roots, v8::HeapGraphNode::kSynthetic, "(Strong roots)");
|
|
CHECK(strong_roots);
|
|
for (int i = 0; i < strong_roots->GetChildrenCount(); ++i) {
|
|
const v8::HeapGraphEdge* edge = strong_roots->GetChild(i);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, edge->GetType());
|
|
v8::String::Utf8Value name(env->GetIsolate(), edge->GetName());
|
|
CHECK(isalpha(**name));
|
|
}
|
|
}
|
|
|
|
|
|
TEST(NoRefsToNonEssentialEntries) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("global_object = {};\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "global_object");
|
|
CHECK(global_object);
|
|
const v8::HeapGraphNode* properties =
|
|
GetProperty(env->GetIsolate(), global_object,
|
|
v8::HeapGraphEdge::kInternal, "properties");
|
|
CHECK(!properties);
|
|
const v8::HeapGraphNode* elements =
|
|
GetProperty(env->GetIsolate(), global_object,
|
|
v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(!elements);
|
|
}
|
|
|
|
|
|
TEST(MapHasDescriptorsAndTransitions) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("obj = { a: 10 };\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* global_object = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "obj");
|
|
CHECK(global_object);
|
|
|
|
const v8::HeapGraphNode* map = GetProperty(
|
|
env->GetIsolate(), global_object, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* own_descriptors = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "descriptors");
|
|
CHECK(own_descriptors);
|
|
const v8::HeapGraphNode* own_transitions = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "transitions");
|
|
CHECK(!own_transitions);
|
|
}
|
|
|
|
|
|
TEST(ManyLocalsInSharedContext) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
int num_objects = 6000;
|
|
CompileRun(
|
|
"var n = 6000;"
|
|
"var result = [];"
|
|
"result.push('(function outer() {');"
|
|
"for (var i = 0; i < n; i++) {"
|
|
" var f = 'function f_' + i + '() { ';"
|
|
" if (i > 0)"
|
|
" f += 'f_' + (i - 1) + '();';"
|
|
" f += ' }';"
|
|
" result.push(f);"
|
|
"}"
|
|
"result.push('return f_' + (n - 1) + ';');"
|
|
"result.push('})()');"
|
|
"var ok = eval(result.join('\\n'));");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* ok_object = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "ok");
|
|
CHECK(ok_object);
|
|
const v8::HeapGraphNode* context_object = GetProperty(
|
|
env->GetIsolate(), ok_object, v8::HeapGraphEdge::kInternal, "context");
|
|
CHECK(context_object);
|
|
// Check the objects are not duplicated in the context.
|
|
CHECK_EQ(v8::internal::Context::MIN_CONTEXT_SLOTS + num_objects - 1,
|
|
context_object->GetChildrenCount());
|
|
// Check all the objects have got their names.
|
|
// ... well check just every 15th because otherwise it's too slow in debug.
|
|
for (int i = 0; i < num_objects - 1; i += 15) {
|
|
i::EmbeddedVector<char, 100> var_name;
|
|
i::SNPrintF(var_name, "f_%d", i);
|
|
const v8::HeapGraphNode* f_object =
|
|
GetProperty(env->GetIsolate(), context_object,
|
|
v8::HeapGraphEdge::kContextVariable, var_name.start());
|
|
CHECK(f_object);
|
|
}
|
|
}
|
|
|
|
|
|
TEST(AllocationSitesAreVisible) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
CompileRun(
|
|
"fun = function () { var a = [3, 2, 1]; return a; }\n"
|
|
"fun();");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK(global);
|
|
const v8::HeapGraphNode* fun_code = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "fun");
|
|
CHECK(fun_code);
|
|
const v8::HeapGraphNode* feedback_cell =
|
|
GetProperty(env->GetIsolate(), fun_code, v8::HeapGraphEdge::kInternal,
|
|
"feedback_cell");
|
|
CHECK(feedback_cell);
|
|
const v8::HeapGraphNode* vector = GetProperty(
|
|
env->GetIsolate(), feedback_cell, v8::HeapGraphEdge::kInternal, "value");
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, vector->GetType());
|
|
CHECK_EQ(3, vector->GetChildrenCount());
|
|
|
|
// The first value in the feedback vector should be the boilerplate,
|
|
// after an AllocationSite.
|
|
const v8::HeapGraphEdge* prop = vector->GetChild(2);
|
|
const v8::HeapGraphNode* allocation_site = prop->GetToNode();
|
|
v8::String::Utf8Value name(env->GetIsolate(), allocation_site->GetName());
|
|
CHECK_EQ(0, strcmp("system / AllocationSite", *name));
|
|
const v8::HeapGraphNode* transition_info =
|
|
GetProperty(env->GetIsolate(), allocation_site,
|
|
v8::HeapGraphEdge::kInternal, "transition_info");
|
|
CHECK(transition_info);
|
|
|
|
const v8::HeapGraphNode* elements =
|
|
GetProperty(env->GetIsolate(), transition_info,
|
|
v8::HeapGraphEdge::kInternal, "elements");
|
|
CHECK(elements);
|
|
CHECK_EQ(v8::HeapGraphNode::kArray, elements->GetType());
|
|
CHECK_EQ(v8::internal::FixedArray::SizeFor(3),
|
|
static_cast<int>(elements->GetShallowSize()));
|
|
|
|
v8::Local<v8::Value> array_val =
|
|
heap_profiler->FindObjectById(transition_info->GetId());
|
|
CHECK(array_val->IsArray());
|
|
v8::Local<v8::Array> array = v8::Local<v8::Array>::Cast(array_val);
|
|
// Verify the array is "a" in the code above.
|
|
CHECK_EQ(3u, array->Length());
|
|
CHECK(v8::Integer::New(isolate, 3)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 0))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
CHECK(v8::Integer::New(isolate, 2)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 1))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
CHECK(v8::Integer::New(isolate, 1)
|
|
->Equals(env.local(),
|
|
array->Get(env.local(), v8::Integer::New(isolate, 2))
|
|
.ToLocalChecked())
|
|
.FromJust());
|
|
}
|
|
|
|
|
|
TEST(JSFunctionHasCodeLink) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("function foo(x, y) { return x + y; }\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* foo_func = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "foo");
|
|
CHECK(foo_func);
|
|
const v8::HeapGraphNode* code = GetProperty(
|
|
env->GetIsolate(), foo_func, v8::HeapGraphEdge::kInternal, "code");
|
|
CHECK(code);
|
|
}
|
|
|
|
static const v8::HeapGraphNode* GetNodeByPath(v8::Isolate* isolate,
|
|
const v8::HeapSnapshot* snapshot,
|
|
const char* path[], int depth) {
|
|
const v8::HeapGraphNode* node = snapshot->GetRoot();
|
|
for (int current_depth = 0; current_depth < depth; ++current_depth) {
|
|
int i, count = node->GetChildrenCount();
|
|
for (i = 0; i < count; ++i) {
|
|
const v8::HeapGraphEdge* edge = node->GetChild(i);
|
|
const v8::HeapGraphNode* to_node = edge->GetToNode();
|
|
v8::String::Utf8Value edge_name(isolate, edge->GetName());
|
|
v8::String::Utf8Value node_name(isolate, to_node->GetName());
|
|
i::EmbeddedVector<char, 100> name;
|
|
i::SNPrintF(name, "%s::%s", *edge_name, *node_name);
|
|
if (strstr(name.start(), path[current_depth])) {
|
|
node = to_node;
|
|
break;
|
|
}
|
|
}
|
|
if (i == count) return nullptr;
|
|
}
|
|
return node;
|
|
}
|
|
|
|
|
|
TEST(CheckCodeNames) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("var a = 1.1;");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
|
|
const char* stub_path[] = {"::(GC roots)", "::(Strong roots)",
|
|
"code_stubs::", "::(StoreFastElementStub code)"};
|
|
const v8::HeapGraphNode* node = GetNodeByPath(
|
|
env->GetIsolate(), snapshot, stub_path, arraysize(stub_path));
|
|
CHECK(node);
|
|
|
|
const char* builtin_path1[] = {"::(GC roots)", "::(Builtins)",
|
|
"::(KeyedLoadIC_Slow builtin)"};
|
|
node = GetNodeByPath(env->GetIsolate(), snapshot, builtin_path1,
|
|
arraysize(builtin_path1));
|
|
CHECK(node);
|
|
|
|
const char* builtin_path2[] = {"::(GC roots)", "::(Builtins)",
|
|
"::(CompileLazy builtin)"};
|
|
node = GetNodeByPath(env->GetIsolate(), snapshot, builtin_path2,
|
|
arraysize(builtin_path2));
|
|
CHECK(node);
|
|
v8::String::Utf8Value node_name(env->GetIsolate(), node->GetName());
|
|
CHECK_EQ(0, strcmp("(CompileLazy builtin)", *node_name));
|
|
}
|
|
|
|
|
|
static const char* record_trace_tree_source =
|
|
"var topFunctions = [];\n"
|
|
"var global = this;\n"
|
|
"function generateFunctions(width, depth) {\n"
|
|
" var script = [];\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" for (var j = 0; j < depth; j++) {\n"
|
|
" script.push('function f_' + i + '_' + j + '(x) {\\n');\n"
|
|
" script.push(' try {\\n');\n"
|
|
" if (j < depth-2) {\n"
|
|
" script.push(' return f_' + i + '_' + (j+1) + '(x+1);\\n');\n"
|
|
" } else if (j == depth - 2) {\n"
|
|
" script.push(' return new f_' + i + '_' + (depth - 1) + '();\\n');\n"
|
|
" } else if (j == depth - 1) {\n"
|
|
" script.push(' this.ts = Date.now();\\n');\n"
|
|
" }\n"
|
|
" script.push(' } catch (e) {}\\n');\n"
|
|
" script.push('}\\n');\n"
|
|
" \n"
|
|
" }\n"
|
|
" }\n"
|
|
" var script = script.join('');\n"
|
|
" // throw script;\n"
|
|
" global.eval(script);\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" topFunctions.push(this['f_' + i + '_0']);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"\n"
|
|
"var width = 3;\n"
|
|
"var depth = 3;\n"
|
|
"generateFunctions(width, depth);\n"
|
|
"var instances = [];\n"
|
|
"function start() {\n"
|
|
" for (var i = 0; i < width; i++) {\n"
|
|
" instances.push(topFunctions[i](0));\n"
|
|
" }\n"
|
|
"}\n"
|
|
"\n"
|
|
"for (var i = 0; i < 100; i++) start();\n";
|
|
|
|
|
|
static AllocationTraceNode* FindNode(
|
|
AllocationTracker* tracker, const Vector<const char*>& names) {
|
|
AllocationTraceNode* node = tracker->trace_tree()->root();
|
|
for (int i = 0; node != nullptr && i < names.length(); i++) {
|
|
const char* name = names[i];
|
|
const std::vector<AllocationTraceNode*>& children = node->children();
|
|
node = nullptr;
|
|
for (AllocationTraceNode* child : children) {
|
|
unsigned index = child->function_info_index();
|
|
AllocationTracker::FunctionInfo* info =
|
|
tracker->function_info_list()[index];
|
|
if (info && strcmp(info->name, name) == 0) {
|
|
node = child;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return node;
|
|
}
|
|
|
|
|
|
TEST(ArrayGrowLeftTrim) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(
|
|
"var a = [];\n"
|
|
"for (var i = 0; i < 5; ++i)\n"
|
|
" a[i] = i;\n"
|
|
"for (var i = 0; i < 3; ++i)\n"
|
|
" a.shift();\n");
|
|
|
|
const char* names[] = {""};
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 2u);
|
|
CHECK_GE(node->allocation_size(), 4u * 5u);
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
TEST(TrackHeapAllocationsWithInlining) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
const char* names[] = {"", "start", "f_0_0"};
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 8u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
TEST(TrackHeapAllocationsWithoutInlining) {
|
|
i::FLAG_turbo_inlining = false;
|
|
// Disable inlining
|
|
i::FLAG_max_inlined_bytecode_size = 0;
|
|
i::FLAG_max_inlined_bytecode_size_small = 0;
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
const char* names[] = {"", "start", "f_0_0", "f_0_1", "f_0_2"};
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 100u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
static const char* inline_heap_allocation_source =
|
|
"function f_0(x) {\n"
|
|
" return f_1(x+1);\n"
|
|
"}\n"
|
|
"%NeverOptimizeFunction(f_0);\n"
|
|
"function f_1(x) {\n"
|
|
" return new f_2(x+1);\n"
|
|
"}\n"
|
|
"%NeverOptimizeFunction(f_1);\n"
|
|
"function f_2(x) {\n"
|
|
" this.foo = x;\n"
|
|
"}\n"
|
|
"var instances = [];\n"
|
|
"function start() {\n"
|
|
" instances.push(f_0(0));\n"
|
|
"}\n"
|
|
"\n"
|
|
"for (var i = 0; i < 100; i++) start();\n";
|
|
|
|
|
|
TEST(TrackBumpPointerAllocations) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const char* names[] = {"", "start", "f_0", "f_1"};
|
|
// First check that normally all allocations are recorded.
|
|
{
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
CompileRun(inline_heap_allocation_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 100u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
{
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
// Now check that not all allocations are tracked if we manually reenable
|
|
// inline allocations.
|
|
CHECK(CcTest::heap()->inline_allocation_disabled());
|
|
CcTest::heap()->EnableInlineAllocation();
|
|
|
|
CompileRun(inline_heap_allocation_source);
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_LT(node->allocation_count(), 100u);
|
|
|
|
CcTest::heap()->DisableInlineAllocation();
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
}
|
|
|
|
|
|
TEST(TrackV8ApiAllocation) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const char* names[] = { "(V8 API)" };
|
|
heap_profiler->StartTrackingHeapObjects(true);
|
|
|
|
v8::Local<v8::Object> o1 = v8::Object::New(env->GetIsolate());
|
|
o1->Clone();
|
|
|
|
AllocationTracker* tracker =
|
|
reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
|
|
CHECK(tracker);
|
|
// Resolve all function locations.
|
|
tracker->PrepareForSerialization();
|
|
// Print for better diagnostics in case of failure.
|
|
tracker->trace_tree()->Print(tracker);
|
|
|
|
AllocationTraceNode* node = FindNode(tracker, ArrayVector(names));
|
|
CHECK(node);
|
|
CHECK_GE(node->allocation_count(), 2u);
|
|
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
|
|
heap_profiler->StopTrackingHeapObjects();
|
|
}
|
|
|
|
|
|
TEST(ArrayBufferAndArrayBufferView) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun("arr1 = new Uint32Array(100);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* arr1_obj = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "arr1");
|
|
CHECK(arr1_obj);
|
|
const v8::HeapGraphNode* arr1_buffer = GetProperty(
|
|
env->GetIsolate(), arr1_obj, v8::HeapGraphEdge::kInternal, "buffer");
|
|
CHECK(arr1_buffer);
|
|
const v8::HeapGraphNode* backing_store =
|
|
GetProperty(env->GetIsolate(), arr1_buffer, v8::HeapGraphEdge::kInternal,
|
|
"backing_store");
|
|
CHECK(backing_store);
|
|
CHECK_EQ(400, static_cast<int>(backing_store->GetShallowSize()));
|
|
}
|
|
|
|
|
|
static int GetRetainersCount(const v8::HeapSnapshot* snapshot,
|
|
const v8::HeapGraphNode* node) {
|
|
int count = 0;
|
|
for (int i = 0, l = snapshot->GetNodesCount(); i < l; ++i) {
|
|
const v8::HeapGraphNode* parent = snapshot->GetNode(i);
|
|
for (int j = 0, l2 = parent->GetChildrenCount(); j < l2; ++j) {
|
|
if (parent->GetChild(j)->GetToNode() == node) {
|
|
++count;
|
|
}
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
|
|
|
|
TEST(ArrayBufferSharedBackingStore) {
|
|
LocalContext env;
|
|
v8::Isolate* isolate = env->GetIsolate();
|
|
v8::HandleScope handle_scope(isolate);
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
|
|
v8::Local<v8::ArrayBuffer> ab = v8::ArrayBuffer::New(isolate, 1024);
|
|
CHECK_EQ(1024, static_cast<int>(ab->ByteLength()));
|
|
CHECK(!ab->IsExternal());
|
|
v8::ArrayBuffer::Contents ab_contents = ab->Externalize();
|
|
CHECK(ab->IsExternal());
|
|
|
|
CHECK_EQ(1024, static_cast<int>(ab_contents.ByteLength()));
|
|
void* data = ab_contents.Data();
|
|
CHECK_NOT_NULL(data);
|
|
v8::Local<v8::ArrayBuffer> ab2 =
|
|
v8::ArrayBuffer::New(isolate, data, ab_contents.ByteLength());
|
|
CHECK(ab2->IsExternal());
|
|
env->Global()->Set(env.local(), v8_str("ab1"), ab).FromJust();
|
|
env->Global()->Set(env.local(), v8_str("ab2"), ab2).FromJust();
|
|
|
|
v8::Local<v8::Value> result = CompileRun("ab2.byteLength");
|
|
CHECK_EQ(1024, result->Int32Value(env.local()).FromJust());
|
|
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* ab1_node = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "ab1");
|
|
CHECK(ab1_node);
|
|
const v8::HeapGraphNode* ab1_data =
|
|
GetProperty(env->GetIsolate(), ab1_node, v8::HeapGraphEdge::kInternal,
|
|
"backing_store");
|
|
CHECK(ab1_data);
|
|
const v8::HeapGraphNode* ab2_node = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "ab2");
|
|
CHECK(ab2_node);
|
|
const v8::HeapGraphNode* ab2_data =
|
|
GetProperty(env->GetIsolate(), ab2_node, v8::HeapGraphEdge::kInternal,
|
|
"backing_store");
|
|
CHECK(ab2_data);
|
|
CHECK_EQ(ab1_data, ab2_data);
|
|
CHECK_EQ(2, GetRetainersCount(snapshot, ab1_data));
|
|
free(data);
|
|
}
|
|
|
|
|
|
TEST(WeakContainers) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
if (!CcTest::i_isolate()->use_optimizer()) return;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"function foo(a) { return a.x; }\n"
|
|
"obj = {x : 123};\n"
|
|
"foo(obj);\n"
|
|
"foo(obj);\n"
|
|
"%OptimizeFunctionOnNextCall(foo);\n"
|
|
"foo(obj);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* obj = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "obj");
|
|
CHECK(obj);
|
|
const v8::HeapGraphNode* map =
|
|
GetProperty(env->GetIsolate(), obj, v8::HeapGraphEdge::kInternal, "map");
|
|
CHECK(map);
|
|
const v8::HeapGraphNode* dependent_code = GetProperty(
|
|
env->GetIsolate(), map, v8::HeapGraphEdge::kInternal, "dependent_code");
|
|
if (!dependent_code) return;
|
|
int count = dependent_code->GetChildrenCount();
|
|
CHECK_NE(0, count);
|
|
for (int i = 0; i < count; ++i) {
|
|
const v8::HeapGraphEdge* prop = dependent_code->GetChild(i);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, prop->GetType());
|
|
}
|
|
}
|
|
|
|
TEST(JSPromise) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"function A() {}\n"
|
|
"function B() {}\n"
|
|
"resolved = Promise.resolve(new A());\n"
|
|
"rejected = Promise.reject(new B());\n"
|
|
"pending = new Promise(() => 0);\n"
|
|
"chained = pending.then(A, B);\n");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
|
|
const v8::HeapGraphNode* resolved = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "resolved");
|
|
CHECK(GetProperty(env->GetIsolate(), resolved, v8::HeapGraphEdge::kInternal,
|
|
"reactions_or_result"));
|
|
|
|
const v8::HeapGraphNode* rejected = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "rejected");
|
|
CHECK(GetProperty(env->GetIsolate(), rejected, v8::HeapGraphEdge::kInternal,
|
|
"reactions_or_result"));
|
|
|
|
const v8::HeapGraphNode* pending = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, "pending");
|
|
CHECK(GetProperty(env->GetIsolate(), pending, v8::HeapGraphEdge::kInternal,
|
|
"reactions_or_result"));
|
|
|
|
const char* objectNames[] = {"resolved", "rejected", "pending", "chained"};
|
|
for (auto objectName : objectNames) {
|
|
const v8::HeapGraphNode* promise = GetProperty(
|
|
env->GetIsolate(), global, v8::HeapGraphEdge::kProperty, objectName);
|
|
EnsureNoUninstrumentedInternals(env->GetIsolate(), promise);
|
|
}
|
|
}
|
|
|
|
TEST(HeapSnapshotScriptContext) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
CompileRun("class Foo{}; const foo = new Foo();");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* native_context =
|
|
GetProperty(env->GetIsolate(), global, v8::HeapGraphEdge::kInternal,
|
|
"native_context");
|
|
CHECK(native_context);
|
|
const v8::HeapGraphNode* script_context_table =
|
|
GetProperty(env->GetIsolate(), native_context,
|
|
v8::HeapGraphEdge::kInternal, "script_context_table");
|
|
CHECK(script_context_table);
|
|
bool found_foo = false;
|
|
for (int i = 0, count = script_context_table->GetChildrenCount(); i < count;
|
|
++i) {
|
|
const v8::HeapGraphNode* context =
|
|
script_context_table->GetChild(i)->GetToNode();
|
|
const v8::HeapGraphNode* foo = GetProperty(
|
|
env->GetIsolate(), context, v8::HeapGraphEdge::kContextVariable, "foo");
|
|
if (foo) {
|
|
found_foo = true;
|
|
}
|
|
}
|
|
CHECK(found_foo);
|
|
}
|
|
|
|
class EmbedderNode : public v8::EmbedderGraph::Node {
|
|
public:
|
|
EmbedderNode(const char* name, size_t size,
|
|
v8::EmbedderGraph::Node* wrapper_node = nullptr)
|
|
: name_(name), size_(size), wrapper_node_(wrapper_node) {}
|
|
|
|
// Graph::Node overrides.
|
|
const char* Name() override { return name_; }
|
|
size_t SizeInBytes() override { return size_; }
|
|
Node* WrapperNode() override { return wrapper_node_; }
|
|
|
|
private:
|
|
const char* name_;
|
|
size_t size_;
|
|
Node* wrapper_node_;
|
|
};
|
|
|
|
class EmbedderRootNode : public EmbedderNode {
|
|
public:
|
|
explicit EmbedderRootNode(const char* name) : EmbedderNode(name, 0) {}
|
|
// Graph::Node override.
|
|
bool IsRootNode() override { return true; }
|
|
};
|
|
|
|
// Used to pass the global object to the BuildEmbedderGraph callback.
|
|
// Otherwise, the callback has to iterate the global handles to find the
|
|
// global object.
|
|
v8::Local<v8::Value>* global_object_pointer;
|
|
|
|
void BuildEmbedderGraph(v8::Isolate* v8_isolate, v8::EmbedderGraph* graph,
|
|
void* data) {
|
|
using Node = v8::EmbedderGraph::Node;
|
|
Node* global_node = graph->V8Node(*global_object_pointer);
|
|
Node* embedder_node_A = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeA", 10)));
|
|
Node* embedder_node_B = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeB", 20)));
|
|
Node* embedder_node_C = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeC", 30)));
|
|
Node* embedder_root = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderRootNode("EmbedderRoot")));
|
|
graph->AddEdge(global_node, embedder_node_A);
|
|
graph->AddEdge(embedder_node_A, embedder_node_B);
|
|
graph->AddEdge(embedder_root, embedder_node_C);
|
|
graph->AddEdge(embedder_node_C, global_node);
|
|
}
|
|
|
|
void CheckEmbedderGraphSnapshot(v8::Isolate* isolate,
|
|
const v8::HeapSnapshot* snapshot) {
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* embedder_node_A =
|
|
GetChildByName(global, "EmbedderNodeA");
|
|
CHECK_EQ(10, GetSize(embedder_node_A));
|
|
const v8::HeapGraphNode* embedder_node_B =
|
|
GetChildByName(embedder_node_A, "EmbedderNodeB");
|
|
CHECK_EQ(20, GetSize(embedder_node_B));
|
|
const v8::HeapGraphNode* embedder_root =
|
|
GetRootChild(snapshot, "EmbedderRoot");
|
|
CHECK(embedder_root);
|
|
const v8::HeapGraphNode* embedder_node_C =
|
|
GetChildByName(embedder_root, "EmbedderNodeC");
|
|
CHECK_EQ(30, GetSize(embedder_node_C));
|
|
const v8::HeapGraphNode* global_reference =
|
|
GetChildByName(embedder_node_C, "Object");
|
|
CHECK(global_reference);
|
|
}
|
|
|
|
TEST(EmbedderGraph) {
|
|
i::FLAG_heap_profiler_use_embedder_graph = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
|
|
v8::Local<v8::Value> global_object =
|
|
v8::Utils::ToLocal(i::Handle<i::JSObject>(
|
|
(isolate->context()->native_context()->global_object()), isolate));
|
|
global_object_pointer = &global_object;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->AddBuildEmbedderGraphCallback(BuildEmbedderGraph, nullptr);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
CheckEmbedderGraphSnapshot(env->GetIsolate(), snapshot);
|
|
}
|
|
|
|
void BuildEmbedderGraphWithNamedEdges(v8::Isolate* v8_isolate,
|
|
v8::EmbedderGraph* graph, void* data) {
|
|
using Node = v8::EmbedderGraph::Node;
|
|
Node* global_node = graph->V8Node(*global_object_pointer);
|
|
Node* embedder_node_A = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeA", 10)));
|
|
Node* embedder_node_B = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeB", 20)));
|
|
Node* embedder_node_C = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeC", 30)));
|
|
graph->AddEdge(global_node, embedder_node_A, "global_to_a");
|
|
graph->AddEdge(embedder_node_A, embedder_node_B, "a_to_b");
|
|
graph->AddEdge(embedder_node_B, embedder_node_C);
|
|
}
|
|
|
|
void CheckEmbedderGraphWithNamedEdges(v8::Isolate* isolate,
|
|
const v8::HeapSnapshot* snapshot) {
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphEdge* global_to_a =
|
|
GetEdgeByChildName(global, "EmbedderNodeA");
|
|
CHECK(global_to_a);
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, global_to_a->GetType());
|
|
CHECK(global_to_a->GetName()->IsString());
|
|
CHECK_EQ(0, strcmp("global_to_a", GetName(global_to_a)));
|
|
const v8::HeapGraphNode* embedder_node_A = global_to_a->GetToNode();
|
|
CHECK_EQ(0, strcmp("EmbedderNodeA", GetName(embedder_node_A)));
|
|
CHECK_EQ(10, GetSize(embedder_node_A));
|
|
|
|
const v8::HeapGraphEdge* a_to_b =
|
|
GetEdgeByChildName(embedder_node_A, "EmbedderNodeB");
|
|
CHECK(a_to_b);
|
|
CHECK(a_to_b->GetName()->IsString());
|
|
CHECK_EQ(0, strcmp("a_to_b", GetName(a_to_b)));
|
|
CHECK_EQ(v8::HeapGraphEdge::kInternal, a_to_b->GetType());
|
|
const v8::HeapGraphNode* embedder_node_B = a_to_b->GetToNode();
|
|
CHECK_EQ(0, strcmp("EmbedderNodeB", GetName(embedder_node_B)));
|
|
CHECK_EQ(20, GetSize(embedder_node_B));
|
|
|
|
const v8::HeapGraphEdge* b_to_c =
|
|
GetEdgeByChildName(embedder_node_B, "EmbedderNodeC");
|
|
CHECK(b_to_c);
|
|
CHECK(b_to_c->GetName()->IsNumber());
|
|
CHECK_EQ(v8::HeapGraphEdge::kElement, b_to_c->GetType());
|
|
const v8::HeapGraphNode* embedder_node_C = b_to_c->GetToNode();
|
|
CHECK_EQ(0, strcmp("EmbedderNodeC", GetName(embedder_node_C)));
|
|
CHECK_EQ(30, GetSize(embedder_node_C));
|
|
}
|
|
|
|
TEST(EmbedderGraphWithNamedEdges) {
|
|
i::FLAG_heap_profiler_use_embedder_graph = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
|
|
v8::Local<v8::Value> global_object =
|
|
v8::Utils::ToLocal(i::Handle<i::JSObject>(
|
|
(isolate->context()->native_context()->global_object()), isolate));
|
|
global_object_pointer = &global_object;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->AddBuildEmbedderGraphCallback(BuildEmbedderGraphWithNamedEdges,
|
|
nullptr);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
CheckEmbedderGraphWithNamedEdges(env->GetIsolate(), snapshot);
|
|
}
|
|
|
|
struct GraphBuildingContext {
|
|
int counter = 0;
|
|
};
|
|
|
|
void CheckEmbedderGraphSnapshotWithContext(
|
|
v8::Isolate* isolate, const v8::HeapSnapshot* snapshot,
|
|
const GraphBuildingContext* context) {
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
CHECK_GE(context->counter, 1);
|
|
CHECK_LE(context->counter, 2);
|
|
|
|
const v8::HeapGraphNode* embedder_node_A =
|
|
GetChildByName(global, "EmbedderNodeA");
|
|
CHECK_EQ(10, GetSize(embedder_node_A));
|
|
|
|
const v8::HeapGraphNode* embedder_node_B =
|
|
GetChildByName(global, "EmbedderNodeB");
|
|
if (context->counter == 2) {
|
|
CHECK_NOT_NULL(embedder_node_B);
|
|
CHECK_EQ(20, GetSize(embedder_node_B));
|
|
} else {
|
|
CHECK_NULL(embedder_node_B);
|
|
}
|
|
}
|
|
|
|
void BuildEmbedderGraphWithContext(v8::Isolate* v8_isolate,
|
|
v8::EmbedderGraph* graph, void* data) {
|
|
using Node = v8::EmbedderGraph::Node;
|
|
GraphBuildingContext* context = static_cast<GraphBuildingContext*>(data);
|
|
Node* global_node = graph->V8Node(*global_object_pointer);
|
|
|
|
CHECK_GE(context->counter, 0);
|
|
CHECK_LE(context->counter, 1);
|
|
switch (context->counter++) {
|
|
case 0: {
|
|
Node* embedder_node_A = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeA", 10)));
|
|
graph->AddEdge(global_node, embedder_node_A);
|
|
break;
|
|
}
|
|
case 1: {
|
|
Node* embedder_node_B = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("EmbedderNodeB", 20)));
|
|
graph->AddEdge(global_node, embedder_node_B);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST(EmbedderGraphMultipleCallbacks) {
|
|
i::FLAG_heap_profiler_use_embedder_graph = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
|
|
v8::Local<v8::Value> global_object =
|
|
v8::Utils::ToLocal(i::Handle<i::JSObject>(
|
|
(isolate->context()->native_context()->global_object()), isolate));
|
|
global_object_pointer = &global_object;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
GraphBuildingContext context;
|
|
|
|
heap_profiler->AddBuildEmbedderGraphCallback(BuildEmbedderGraphWithContext,
|
|
&context);
|
|
heap_profiler->AddBuildEmbedderGraphCallback(BuildEmbedderGraphWithContext,
|
|
&context);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK_EQ(context.counter, 2);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
CheckEmbedderGraphSnapshotWithContext(env->GetIsolate(), snapshot, &context);
|
|
|
|
heap_profiler->RemoveBuildEmbedderGraphCallback(BuildEmbedderGraphWithContext,
|
|
&context);
|
|
context.counter = 0;
|
|
|
|
snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK_EQ(context.counter, 1);
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
CheckEmbedderGraphSnapshotWithContext(env->GetIsolate(), snapshot, &context);
|
|
}
|
|
|
|
TEST(StrongHandleAnnotation) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::Persistent<v8::Object> handle1, handle2;
|
|
handle1.Reset(env->GetIsolate(), v8::Object::New(env->GetIsolate()));
|
|
handle2.Reset(env->GetIsolate(), v8::Object::New(env->GetIsolate()));
|
|
handle1.AnnotateStrongRetainer("my_label");
|
|
handle2.AnnotateStrongRetainer("my_label");
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
const v8::HeapGraphNode* gc_roots = GetRootChild(snapshot, "(GC roots)");
|
|
CHECK(gc_roots);
|
|
const v8::HeapGraphNode* global_handles =
|
|
GetChildByName(gc_roots, "(Global handles)");
|
|
CHECK(global_handles);
|
|
int found = 0;
|
|
for (int i = 0, count = global_handles->GetChildrenCount(); i < count; ++i) {
|
|
const v8::HeapGraphEdge* edge = global_handles->GetChild(i);
|
|
v8::String::Utf8Value edge_name(CcTest::isolate(), edge->GetName());
|
|
if (EndsWith(*edge_name, "my_label")) ++found;
|
|
}
|
|
CHECK_EQ(2, found);
|
|
}
|
|
|
|
void BuildEmbedderGraphWithWrapperNode(v8::Isolate* v8_isolate,
|
|
v8::EmbedderGraph* graph, void* data) {
|
|
using Node = v8::EmbedderGraph::Node;
|
|
Node* global_node = graph->V8Node(*global_object_pointer);
|
|
Node* wrapper_node = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("WrapperNode / TAG", 10)));
|
|
Node* embedder_node = graph->AddNode(std::unique_ptr<Node>(
|
|
new EmbedderNode("EmbedderNode", 10, wrapper_node)));
|
|
Node* other_node =
|
|
graph->AddNode(std::unique_ptr<Node>(new EmbedderNode("OtherNode", 20)));
|
|
graph->AddEdge(global_node, embedder_node);
|
|
graph->AddEdge(wrapper_node, other_node);
|
|
|
|
Node* wrapper_node2 = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNode("WrapperNode2", 10)));
|
|
Node* embedder_node2 = graph->AddNode(std::unique_ptr<Node>(
|
|
new EmbedderNode("EmbedderNode2", 10, wrapper_node2)));
|
|
graph->AddEdge(global_node, embedder_node2);
|
|
graph->AddEdge(embedder_node2, wrapper_node2);
|
|
graph->AddEdge(wrapper_node2, other_node);
|
|
}
|
|
|
|
TEST(EmbedderGraphWithWrapperNode) {
|
|
i::FLAG_heap_profiler_use_embedder_graph = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
|
|
v8::Local<v8::Value> global_object =
|
|
v8::Utils::ToLocal(i::Handle<i::JSObject>(
|
|
(isolate->context()->native_context()->global_object()), isolate));
|
|
global_object_pointer = &global_object;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->AddBuildEmbedderGraphCallback(
|
|
BuildEmbedderGraphWithWrapperNode, nullptr);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* embedder_node =
|
|
GetChildByName(global, "EmbedderNode / TAG");
|
|
const v8::HeapGraphNode* other_node =
|
|
GetChildByName(embedder_node, "OtherNode");
|
|
CHECK(other_node);
|
|
const v8::HeapGraphNode* wrapper_node =
|
|
GetChildByName(embedder_node, "WrapperNode / TAG");
|
|
CHECK(!wrapper_node);
|
|
|
|
const v8::HeapGraphNode* embedder_node2 =
|
|
GetChildByName(global, "EmbedderNode2");
|
|
other_node = GetChildByName(embedder_node2, "OtherNode");
|
|
CHECK(other_node);
|
|
const v8::HeapGraphNode* wrapper_node2 =
|
|
GetChildByName(embedder_node, "WrapperNode2");
|
|
CHECK(!wrapper_node2);
|
|
}
|
|
|
|
class EmbedderNodeWithPrefix : public v8::EmbedderGraph::Node {
|
|
public:
|
|
EmbedderNodeWithPrefix(const char* prefix, const char* name)
|
|
: prefix_(prefix), name_(name) {}
|
|
|
|
// Graph::Node overrides.
|
|
const char* Name() override { return name_; }
|
|
size_t SizeInBytes() override { return 0; }
|
|
const char* NamePrefix() override { return prefix_; }
|
|
|
|
private:
|
|
const char* prefix_;
|
|
const char* name_;
|
|
};
|
|
|
|
void BuildEmbedderGraphWithPrefix(v8::Isolate* v8_isolate,
|
|
v8::EmbedderGraph* graph, void* data) {
|
|
using Node = v8::EmbedderGraph::Node;
|
|
Node* global_node = graph->V8Node(*global_object_pointer);
|
|
Node* node = graph->AddNode(
|
|
std::unique_ptr<Node>(new EmbedderNodeWithPrefix("Detached", "Node")));
|
|
graph->AddEdge(global_node, node);
|
|
}
|
|
|
|
TEST(EmbedderGraphWithPrefix) {
|
|
i::FLAG_heap_profiler_use_embedder_graph = true;
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
i::Isolate* isolate = reinterpret_cast<i::Isolate*>(env->GetIsolate());
|
|
v8::Local<v8::Value> global_object =
|
|
v8::Utils::ToLocal(i::Handle<i::JSObject>(
|
|
(isolate->context()->native_context()->global_object()), isolate));
|
|
global_object_pointer = &global_object;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
heap_profiler->AddBuildEmbedderGraphCallback(BuildEmbedderGraphWithPrefix,
|
|
nullptr);
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
|
|
const v8::HeapGraphNode* node = GetChildByName(global, "Detached Node");
|
|
CHECK(node);
|
|
}
|
|
|
|
static inline i::Address ToAddress(int n) { return static_cast<i::Address>(n); }
|
|
|
|
TEST(AddressToTraceMap) {
|
|
i::AddressToTraceMap map;
|
|
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(150)));
|
|
|
|
// [0x100, 0x200) -> 1
|
|
map.AddRange(ToAddress(0x100), 0x100, 1U);
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x50)));
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x100)));
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x150)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x100 + 0x100)));
|
|
CHECK_EQ(1u, map.size());
|
|
|
|
// [0x100, 0x200) -> 1, [0x200, 0x300) -> 2
|
|
map.AddRange(ToAddress(0x200), 0x100, 2U);
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x2A0)));
|
|
CHECK_EQ(2u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2
|
|
map.AddRange(ToAddress(0x180), 0x100, 3U);
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x17F)));
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x280)));
|
|
CHECK_EQ(3u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2,
|
|
// [0x400, 0x500) -> 4
|
|
map.AddRange(ToAddress(0x400), 0x100, 4U);
|
|
CHECK_EQ(1u, map.GetTraceNodeId(ToAddress(0x17F)));
|
|
CHECK_EQ(2u, map.GetTraceNodeId(ToAddress(0x280)));
|
|
CHECK_EQ(3u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(4u, map.GetTraceNodeId(ToAddress(0x450)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x500)));
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x350)));
|
|
CHECK_EQ(4u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x200) -> 3, [0x200, 0x600) -> 5
|
|
map.AddRange(ToAddress(0x200), 0x400, 5U);
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x200)));
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x400)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
// [0x100, 0x180) -> 1, [0x180, 0x200) -> 7, [0x200, 0x600) ->5
|
|
map.AddRange(ToAddress(0x180), 0x80, 6U);
|
|
map.AddRange(ToAddress(0x180), 0x80, 7U);
|
|
CHECK_EQ(7u, map.GetTraceNodeId(ToAddress(0x180)));
|
|
CHECK_EQ(5u, map.GetTraceNodeId(ToAddress(0x200)));
|
|
CHECK_EQ(3u, map.size());
|
|
|
|
map.Clear();
|
|
CHECK_EQ(0u, map.size());
|
|
CHECK_EQ(0u, map.GetTraceNodeId(ToAddress(0x400)));
|
|
}
|
|
|
|
static const v8::AllocationProfile::Node* FindAllocationProfileNode(
|
|
v8::Isolate* isolate, v8::AllocationProfile& profile,
|
|
const Vector<const char*>& names) {
|
|
v8::AllocationProfile::Node* node = profile.GetRootNode();
|
|
for (int i = 0; node != nullptr && i < names.length(); ++i) {
|
|
const char* name = names[i];
|
|
auto children = node->children;
|
|
node = nullptr;
|
|
for (v8::AllocationProfile::Node* child : children) {
|
|
v8::String::Utf8Value child_name(isolate, child->name);
|
|
if (strcmp(*child_name, name) == 0) {
|
|
node = child;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return node;
|
|
}
|
|
|
|
static void CheckNoZeroCountNodes(v8::AllocationProfile::Node* node) {
|
|
for (auto alloc : node->allocations) {
|
|
CHECK_GT(alloc.count, 0u);
|
|
}
|
|
for (auto child : node->children) {
|
|
CheckNoZeroCountNodes(child);
|
|
}
|
|
}
|
|
|
|
static int NumberOfAllocations(const v8::AllocationProfile::Node* node) {
|
|
int count = 0;
|
|
for (auto allocation : node->allocations) {
|
|
count += allocation.count;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
static const char* simple_sampling_heap_profiler_script =
|
|
"var A = [];\n"
|
|
"function bar(size) { return new Array(size); }\n"
|
|
"var foo = function() {\n"
|
|
" for (var i = 0; i < 1024; ++i) {\n"
|
|
" A[i] = bar(1024);\n"
|
|
" }\n"
|
|
"}\n"
|
|
"foo();";
|
|
|
|
TEST(SamplingHeapProfiler) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Turn off always_opt. Inlining can cause stack traces to be shorter than
|
|
// what we expect in this test.
|
|
v8::internal::FLAG_always_opt = false;
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
// Sample should be empty if requested before sampling has started.
|
|
{
|
|
v8::AllocationProfile* profile = heap_profiler->GetAllocationProfile();
|
|
CHECK_NULL(profile);
|
|
}
|
|
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(1024);
|
|
CompileRun(simple_sampling_heap_profiler_script);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* names[] = {"", "foo", "bar"};
|
|
auto node_bar = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names));
|
|
CHECK(node_bar);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// Samples should get cleared once sampling is stopped.
|
|
{
|
|
v8::AllocationProfile* profile = heap_profiler->GetAllocationProfile();
|
|
CHECK_NULL(profile);
|
|
}
|
|
|
|
// A more complicated test cases with deeper call graph and dynamically
|
|
// generated function names.
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
CompileRun(record_trace_tree_source);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* names1[] = {"", "start", "f_0_0", "f_0_1", "f_0_2"};
|
|
auto node1 = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names1));
|
|
CHECK(node1);
|
|
|
|
const char* names2[] = {"", "generateFunctions"};
|
|
auto node2 = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names2));
|
|
CHECK(node2);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// A test case with scripts unloaded before profile gathered
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
CompileRun(
|
|
"for (var i = 0; i < 1024; i++) {\n"
|
|
" eval(\"new Array(100)\");\n"
|
|
"}\n");
|
|
|
|
CcTest::CollectAllGarbage();
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
CheckNoZeroCountNodes(profile->GetRootNode());
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerRateAgnosticEstimates) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Turn off always_opt. Inlining can cause stack traces to be shorter than
|
|
// what we expect in this test.
|
|
v8::internal::FLAG_always_opt = false;
|
|
|
|
// Disable compilation cache to force compilation in both cases
|
|
v8::internal::FLAG_compilation_cache = false;
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
// stress_incremental_marking adds randomness to the test.
|
|
v8::internal::FLAG_stress_incremental_marking = false;
|
|
|
|
// warmup compilation
|
|
CompileRun(simple_sampling_heap_profiler_script);
|
|
|
|
int count_1024 = 0;
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(1024);
|
|
CompileRun(simple_sampling_heap_profiler_script);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* path_to_foo[] = {"", "foo"};
|
|
auto node_foo = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(path_to_foo));
|
|
CHECK(node_foo);
|
|
const char* path_to_bar[] = {"", "foo", "bar"};
|
|
auto node_bar = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(path_to_bar));
|
|
CHECK(node_bar);
|
|
|
|
// Function bar can be inlined in foo.
|
|
count_1024 = NumberOfAllocations(node_foo) + NumberOfAllocations(node_bar);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
// Sampling at a higher rate should give us similar numbers of objects.
|
|
{
|
|
heap_profiler->StartSamplingHeapProfiler(128);
|
|
CompileRun(simple_sampling_heap_profiler_script);
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
const char* path_to_foo[] = {"", "foo"};
|
|
auto node_foo = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(path_to_foo));
|
|
CHECK(node_foo);
|
|
const char* path_to_bar[] = {"", "foo", "bar"};
|
|
auto node_bar = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(path_to_bar));
|
|
CHECK(node_bar);
|
|
|
|
// Function bar can be inlined in foo.
|
|
int count_128 =
|
|
NumberOfAllocations(node_foo) + NumberOfAllocations(node_bar);
|
|
|
|
// We should have similar unsampled counts of allocations. Though
|
|
// we will sample different numbers of objects at different rates,
|
|
// the unsampling process should produce similar final estimates
|
|
// at the true number of allocations. However, the process to
|
|
// determine these unsampled counts is probabilisitic so we need to
|
|
// account for error.
|
|
double max_count = std::max(count_128, count_1024);
|
|
double min_count = std::min(count_128, count_1024);
|
|
double percent_difference = (max_count - min_count) / min_count;
|
|
CHECK_LT(percent_difference, 0.1);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerApiAllocation) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
heap_profiler->StartSamplingHeapProfiler(256);
|
|
|
|
for (int i = 0; i < 8 * 1024; ++i) v8::Object::New(env->GetIsolate());
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
const char* names[] = {"(V8 API)"};
|
|
auto node = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names));
|
|
CHECK(node);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerApiSamples) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
heap_profiler->StartSamplingHeapProfiler(1024);
|
|
|
|
size_t count = 8 * 1024;
|
|
for (size_t i = 0; i < count; ++i) v8::Object::New(env->GetIsolate());
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
|
|
std::vector<v8::AllocationProfile::Node*> nodes_to_visit;
|
|
std::unordered_set<uint32_t> node_ids;
|
|
nodes_to_visit.push_back(profile->GetRootNode());
|
|
while (!nodes_to_visit.empty()) {
|
|
v8::AllocationProfile::Node* node = nodes_to_visit.back();
|
|
nodes_to_visit.pop_back();
|
|
CHECK_LT(0, node->node_id);
|
|
CHECK_EQ(0, node_ids.count(node->node_id));
|
|
node_ids.insert(node->node_id);
|
|
nodes_to_visit.insert(nodes_to_visit.end(), node->children.begin(),
|
|
node->children.end());
|
|
}
|
|
|
|
size_t total_size = 0;
|
|
std::unordered_set<uint64_t> samples_set;
|
|
for (auto& sample : profile->GetSamples()) {
|
|
total_size += sample.size * sample.count;
|
|
CHECK_EQ(0, samples_set.count(sample.sample_id));
|
|
CHECK_EQ(1, node_ids.count(sample.node_id));
|
|
CHECK_GT(sample.node_id, 0);
|
|
CHECK_GT(sample.sample_id, 0);
|
|
samples_set.insert(sample.sample_id);
|
|
}
|
|
size_t object_size = total_size / count;
|
|
CHECK_GE(object_size, sizeof(void*) * 2);
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerLeftTrimming) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
|
|
CompileRun(
|
|
"for (var j = 0; j < 500; ++j) {\n"
|
|
" var a = [];\n"
|
|
" for (var i = 0; i < 5; ++i)\n"
|
|
" a[i] = i;\n"
|
|
" for (var i = 0; i < 3; ++i)\n"
|
|
" a.shift();\n"
|
|
"}\n");
|
|
|
|
CcTest::CollectGarbage(v8::internal::NEW_SPACE);
|
|
// Should not crash.
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerPretenuredInlineAllocations) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
i::FLAG_expose_gc = true;
|
|
|
|
CcTest::InitializeVM();
|
|
if (!CcTest::i_isolate()->use_optimizer() || i::FLAG_always_opt) return;
|
|
if (i::FLAG_gc_global || i::FLAG_stress_compaction ||
|
|
i::FLAG_stress_incremental_marking) {
|
|
return;
|
|
}
|
|
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
// Grow new space until maximum capacity reached.
|
|
while (!CcTest::heap()->new_space()->IsAtMaximumCapacity()) {
|
|
CcTest::heap()->new_space()->Grow();
|
|
}
|
|
|
|
i::ScopedVector<char> source(1024);
|
|
i::SNPrintF(source,
|
|
"var number_elements = %d;"
|
|
"var elements = new Array(number_elements);"
|
|
"function f() {"
|
|
" for (var i = 0; i < number_elements; i++) {"
|
|
" elements[i] = [{}, {}, {}];"
|
|
" }"
|
|
" return elements[number_elements - 1];"
|
|
"};"
|
|
"f(); gc();"
|
|
"f(); f();"
|
|
"%%OptimizeFunctionOnNextCall(f);"
|
|
"f();"
|
|
"f;",
|
|
i::AllocationSite::kPretenureMinimumCreated + 1);
|
|
|
|
v8::Local<v8::Function> f =
|
|
v8::Local<v8::Function>::Cast(CompileRun(source.start()));
|
|
|
|
// Make sure the function is producing pre-tenured objects.
|
|
auto res = f->Call(env.local(), env->Global(), 0, nullptr).ToLocalChecked();
|
|
i::Handle<i::JSObject> o = i::Handle<i::JSObject>::cast(
|
|
v8::Utils::OpenHandle(*v8::Local<v8::Object>::Cast(res)));
|
|
CHECK(CcTest::heap()->InOldSpace(o->elements()));
|
|
CHECK(CcTest::heap()->InOldSpace(*o));
|
|
|
|
// Call the function and profile it.
|
|
heap_profiler->StartSamplingHeapProfiler(64);
|
|
for (int i = 0; i < 80; ++i) {
|
|
f->Call(env.local(), env->Global(), 0, nullptr).ToLocalChecked();
|
|
}
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
|
|
const char* names[] = {"f"};
|
|
auto node_f = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names));
|
|
CHECK(node_f);
|
|
|
|
int count = 0;
|
|
for (auto allocation : node_f->allocations) {
|
|
count += allocation.count;
|
|
}
|
|
|
|
CHECK_GE(count, 8000);
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerLargeInterval) {
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
heap_profiler->StartSamplingHeapProfiler(512 * 1024);
|
|
|
|
for (int i = 0; i < 8 * 1024; ++i) {
|
|
CcTest::i_isolate()->factory()->NewFixedArray(1024);
|
|
}
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
const char* names[] = {"(EXTERNAL)"};
|
|
auto node = FindAllocationProfileNode(env->GetIsolate(), *profile,
|
|
ArrayVector(names));
|
|
CHECK(node);
|
|
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
TEST(HeapSnapshotPrototypeNotJSReceiver) {
|
|
LocalContext env;
|
|
v8::HandleScope scope(env->GetIsolate());
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
CompileRun(
|
|
"function object() {}"
|
|
"object.prototype = 42;");
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
}
|
|
|
|
TEST(SamplingHeapProfilerSampleDuringDeopt) {
|
|
i::FLAG_allow_natives_syntax = true;
|
|
|
|
v8::HandleScope scope(v8::Isolate::GetCurrent());
|
|
LocalContext env;
|
|
v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
|
|
|
|
// Suppress randomness to avoid flakiness in tests.
|
|
v8::internal::FLAG_sampling_heap_profiler_suppress_randomness = true;
|
|
|
|
// Small sample interval to force each object to be sampled.
|
|
heap_profiler->StartSamplingHeapProfiler(i::kPointerSize);
|
|
|
|
// Lazy deopt from runtime call from inlined callback function.
|
|
const char* source =
|
|
"var b = "
|
|
" [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25];"
|
|
"(function f() {"
|
|
" var result = 0;"
|
|
" var lazyDeopt = function(deopt) {"
|
|
" var callback = function(v,i,o) {"
|
|
" result += i;"
|
|
" if (i == 13 && deopt) {"
|
|
" %DeoptimizeNow();"
|
|
" }"
|
|
" return v;"
|
|
" };"
|
|
" b.map(callback);"
|
|
" };"
|
|
" lazyDeopt();"
|
|
" lazyDeopt();"
|
|
" %OptimizeFunctionOnNextCall(lazyDeopt);"
|
|
" lazyDeopt();"
|
|
" lazyDeopt(true);"
|
|
" lazyDeopt();"
|
|
"})();";
|
|
|
|
CompileRun(source);
|
|
// Should not crash.
|
|
|
|
std::unique_ptr<v8::AllocationProfile> profile(
|
|
heap_profiler->GetAllocationProfile());
|
|
CHECK(profile);
|
|
heap_profiler->StopSamplingHeapProfiler();
|
|
}
|
|
|
|
TEST(WeakReference) {
|
|
v8::Isolate* isolate = CcTest::isolate();
|
|
i::Isolate* i_isolate = CcTest::i_isolate();
|
|
i::Factory* factory = i_isolate->factory();
|
|
i::HandleScope scope(i_isolate);
|
|
LocalContext env;
|
|
|
|
// Create a FeedbackVector.
|
|
v8::Local<v8::Script> script =
|
|
v8::Script::Compile(isolate->GetCurrentContext(),
|
|
v8::String::NewFromUtf8(isolate, "function foo() {}",
|
|
v8::NewStringType::kNormal)
|
|
.ToLocalChecked())
|
|
.ToLocalChecked();
|
|
v8::MaybeLocal<v8::Value> value = script->Run(isolate->GetCurrentContext());
|
|
CHECK(!value.IsEmpty());
|
|
|
|
i::Handle<i::Object> obj = v8::Utils::OpenHandle(*script);
|
|
i::Handle<i::SharedFunctionInfo> shared_function =
|
|
i::Handle<i::SharedFunctionInfo>(i::JSFunction::cast(*obj)->shared(),
|
|
i_isolate);
|
|
i::Handle<i::FeedbackVector> fv = factory->NewFeedbackVector(shared_function);
|
|
|
|
// Create a Code.
|
|
i::Assembler assm(i::AssemblerOptions{}, nullptr, 0);
|
|
assm.nop(); // supported on all architectures
|
|
i::CodeDesc desc;
|
|
assm.GetCode(i_isolate, &desc);
|
|
i::Handle<i::Code> code =
|
|
factory->NewCode(desc, i::Code::STUB, i::Handle<i::Code>());
|
|
CHECK(code->IsCode());
|
|
|
|
fv->set_optimized_code_weak_or_smi(i::HeapObjectReference::Weak(*code));
|
|
|
|
v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
|
|
const v8::HeapSnapshot* snapshot = heap_profiler->TakeHeapSnapshot();
|
|
CHECK(ValidateSnapshot(snapshot));
|
|
}
|