AuroraMiddleware/v8
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Make TransitionArray internal references originate from TA in heap snapshot.

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TransitionArray references were added to the TA's map object instead
of TA itself.

R=verwaest@chromium.org, yurys@chromium.org

Review URL: https://codereview.chromium.org/19265002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15692 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
alph@chromium.org 2013-07-16 12:48:34 +00:00
parent 147163fc41
commit 86ca2c133c
1 changed files with 18 additions and 14 deletions
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32
src/heap-snapshot-generator.cc
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@ -1109,22 +1109,13 @@ void V8HeapExplorer::ExtractContextReferences(int entry, Context* context) {
void V8HeapExplorer::ExtractMapReferences(int entry, Map* map) {
SetInternalReference(map, entry,
"prototype", map->prototype(), Map::kPrototypeOffset);
SetInternalReference(map, entry,
"constructor", map->constructor(),
Map::kConstructorOffset);
if (map->HasTransitionArray()) {
TransitionArray* transitions = map->transitions();
int transitions_entry = GetEntry(transitions)->index();
Object* back_pointer = transitions->back_pointer_storage();
TagObject(transitions->back_pointer_storage(), "(back pointer)");
SetInternalReference(transitions, entry,
"backpointer", back_pointer,
TransitionArray::kBackPointerStorageOffset);
IndexedReferencesExtractor transitions_refs(this, transitions, entry);
transitions->Iterate(&transitions_refs);
TagObject(back_pointer, "(back pointer)");
SetInternalReference(transitions, transitions_entry,
"back_pointer", back_pointer);
TagObject(transitions, "(transition array)");
SetInternalReference(map, entry,
"transitions", transitions,
@ -1133,7 +1124,7 @@ void V8HeapExplorer::ExtractMapReferences(int entry, Map* map) {
Object* back_pointer = map->GetBackPointer();
TagObject(back_pointer, "(back pointer)");
SetInternalReference(map, entry,
"backpointer", back_pointer,
"back_pointer", back_pointer,
Map::kTransitionsOrBackPointerOffset);
}
DescriptorArray* descriptors = map->instance_descriptors();
@ -1145,6 +1136,11 @@ void V8HeapExplorer::ExtractMapReferences(int entry, Map* map) {
SetInternalReference(map, entry,
"code_cache", map->code_cache(),
Map::kCodeCacheOffset);
SetInternalReference(map, entry,
"prototype", map->prototype(), Map::kPrototypeOffset);
SetInternalReference(map, entry,
"constructor", map->constructor(),
Map::kConstructorOffset);
}
@ -1576,6 +1572,7 @@ void V8HeapExplorer::SetContextReference(HeapObject* parent_obj,
String* reference_name,
Object* child_obj,
int field_offset) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL) {
filler_->SetNamedReference(HeapGraphEdge::kContextVariable,
@ -1591,6 +1588,7 @@ void V8HeapExplorer::SetNativeBindReference(HeapObject* parent_obj,
int parent_entry,
const char* reference_name,
Object* child_obj) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL) {
filler_->SetNamedReference(HeapGraphEdge::kShortcut,
@ -1605,6 +1603,7 @@ void V8HeapExplorer::SetElementReference(HeapObject* parent_obj,
int parent_entry,
int index,
Object* child_obj) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL) {
filler_->SetIndexedReference(HeapGraphEdge::kElement,
@ -1620,6 +1619,7 @@ void V8HeapExplorer::SetInternalReference(HeapObject* parent_obj,
const char* reference_name,
Object* child_obj,
int field_offset) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry == NULL) return;
if (IsEssentialObject(child_obj)) {
@ -1637,6 +1637,7 @@ void V8HeapExplorer::SetInternalReference(HeapObject* parent_obj,
int index,
Object* child_obj,
int field_offset) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry == NULL) return;
if (IsEssentialObject(child_obj)) {
@ -1653,6 +1654,7 @@ void V8HeapExplorer::SetHiddenReference(HeapObject* parent_obj,
int parent_entry,
int index,
Object* child_obj) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL && IsEssentialObject(child_obj)) {
filler_->SetIndexedReference(HeapGraphEdge::kHidden,
@ -1668,6 +1670,7 @@ void V8HeapExplorer::SetWeakReference(HeapObject* parent_obj,
int index,
Object* child_obj,
int field_offset) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL) {
filler_->SetIndexedReference(HeapGraphEdge::kWeak,
@ -1685,6 +1688,7 @@ void V8HeapExplorer::SetPropertyReference(HeapObject* parent_obj,
Object* child_obj,
const char* name_format_string,
int field_offset) {
ASSERT(parent_entry == GetEntry(parent_obj)->index());
HeapEntry* child_entry = GetEntry(child_obj);
if (child_entry != NULL) {
HeapGraphEdge::Type type =