#include "heap-snapshot-generator-inl.h"
#include "allocation-tracker.h"
+#include "code-stubs.h"
#include "heap-profiler.h"
#include "debug.h"
#include "types.h"
void VisitCodeEntry(Address entry_address) {
Code* code = Code::cast(Code::GetObjectFromEntryAddress(entry_address));
generator_->SetInternalReference(parent_obj_, parent_, "code", code);
- generator_->TagObject(code, "(code)");
+ generator_->TagCodeObject(code);
}
void VisitPointers(Object** start, Object** end) {
for (Object** p = start; p < end; p++) {
void V8HeapExplorer::ExtractSharedFunctionInfoReferences(
int entry, SharedFunctionInfo* shared) {
HeapObject* obj = shared;
+ StringsStorage* names = collection_->names();
+ String* shared_name = shared->DebugName();
+ const char* name = NULL;
+ if (shared_name != *heap_->isolate()->factory()->empty_string()) {
+ name = names->GetName(shared_name);
+ TagObject(shared->code(), names->GetFormatted("(code for %s)", name));
+ } else {
+ TagObject(shared->code(), names->GetFormatted("(%s code)",
+ Code::Kind2String(shared->code()->kind())));
+ }
+
SetInternalReference(obj, entry,
"name", shared->name(),
SharedFunctionInfo::kNameOffset);
- TagObject(shared->code(), "(code)");
SetInternalReference(obj, entry,
"code", shared->code(),
SharedFunctionInfo::kCodeOffset);
SetInternalReference(obj, entry,
"script", shared->script(),
SharedFunctionInfo::kScriptOffset);
- TagObject(shared->construct_stub(), "(code)");
+ const char* construct_stub_name = name ?
+ names->GetFormatted("(construct stub code for %s)", name) :
+ "(construct stub code)";
+ TagObject(shared->construct_stub(), construct_stub_name);
SetInternalReference(obj, entry,
"construct_stub", shared->construct_stub(),
SharedFunctionInfo::kConstructStubOffset);
SetInternalReference(obj, entry,
"inferred_name", shared->inferred_name(),
SharedFunctionInfo::kInferredNameOffset);
+ SetInternalReference(obj, entry,
+ "optimized_code_map", shared->optimized_code_map(),
+ SharedFunctionInfo::kOptimizedCodeMapOffset);
SetWeakReference(obj, entry,
1, shared->initial_map(),
SharedFunctionInfo::kInitialMapOffset);
}
+void V8HeapExplorer::TagCodeObject(Code* code, const char* external_name) {
+ TagObject(code, collection_->names()->GetFormatted("(%s code)",
+ external_name));
+}
+
+
+void V8HeapExplorer::TagCodeObject(Code* code) {
+ if (code->kind() == Code::STUB) {
+ TagObject(code, collection_->names()->GetFormatted(
+ "(%s code)", CodeStub::MajorName(
+ static_cast<CodeStub::Major>(code->major_key()), true)));
+ }
+}
+
+
void V8HeapExplorer::ExtractCodeReferences(int entry, Code* code) {
+ TagCodeObject(code);
TagObject(code->relocation_info(), "(code relocation info)");
SetInternalReference(code, entry,
"relocation_info", code->relocation_info(),
};
public:
- RootsReferencesExtractor()
+ explicit RootsReferencesExtractor(Heap* heap)
: collecting_all_references_(false),
- previous_reference_count_(0) {
+ previous_reference_count_(0),
+ heap_(heap) {
}
void VisitPointers(Object** start, Object** end) {
void FillReferences(V8HeapExplorer* explorer) {
ASSERT(strong_references_.length() <= all_references_.length());
+ Builtins* builtins = heap_->isolate()->builtins();
for (int i = 0; i < reference_tags_.length(); ++i) {
explorer->SetGcRootsReference(reference_tags_[i].tag);
}
- int strong_index = 0, all_index = 0, tags_index = 0;
+ int strong_index = 0, all_index = 0, tags_index = 0, builtin_index = 0;
while (all_index < all_references_.length()) {
if (strong_index < strong_references_.length() &&
strong_references_[strong_index] == all_references_[all_index]) {
explorer->SetGcSubrootReference(reference_tags_[tags_index].tag,
false,
- all_references_[all_index++]);
+ all_references_[all_index]);
++strong_index;
} else {
explorer->SetGcSubrootReference(reference_tags_[tags_index].tag,
true,
- all_references_[all_index++]);
+ all_references_[all_index]);
+ }
+ if (reference_tags_[tags_index].tag ==
+ VisitorSynchronization::kBuiltins) {
+ ASSERT(all_references_[all_index]->IsCode());
+ explorer->TagCodeObject(Code::cast(all_references_[all_index]),
+ builtins->name(builtin_index++));
}
+ ++all_index;
if (reference_tags_[tags_index].index == all_index) ++tags_index;
}
}
List<Object*> all_references_;
int previous_reference_count_;
List<IndexTag> reference_tags_;
+ Heap* heap_;
};
}
SetRootGcRootsReference();
- RootsReferencesExtractor extractor;
+ RootsReferencesExtractor extractor(heap_);
heap_->IterateRoots(&extractor, VISIT_ONLY_STRONG);
extractor.SetCollectingAllReferences();
heap_->IterateRoots(&extractor, VISIT_ALL);
CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
heap_profiler->StopRecordingHeapAllocations();
}
+
+
+static const v8::HeapGraphNode* GetNodeByPath(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(edge->GetName());
+ v8::String::Utf8Value node_name(to_node->GetName());
+ i::EmbeddedVector<char, 100> name;
+ i::OS::SNPrintF(name, "%s::%s", *edge_name, *node_name);
+ if (strstr(name.start(), path[current_depth])) {
+ node = to_node;
+ break;
+ }
+ }
+ if (i == count) return NULL;
+ }
+ 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(v8_str("CheckCodeNames"));
+ CHECK(ValidateSnapshot(snapshot));
+
+ const char* stub_path[] = {
+ "::(GC roots)",
+ "::(Strong roots)",
+ "code_stubs::",
+ "::(ArraySingleArgumentConstructorStub code)"
+ };
+ const v8::HeapGraphNode* node = GetNodeByPath(snapshot,
+ stub_path, ARRAY_SIZE(stub_path));
+ CHECK_NE(NULL, node);
+
+ const char* builtin_path[] = {
+ "::(GC roots)",
+ "::(Builtins)",
+ "::(KeyedLoadIC_Generic code)"
+ };
+ node = GetNodeByPath(snapshot, builtin_path, ARRAY_SIZE(builtin_path));
+ CHECK_NE(NULL, node);
+}