Reviewers: Yury Semikhatsky,
Message:
PTAL.
Description:
Show map -> transition array -> descriptor array to the heap profiler.
BUG=chromium:142625
Please review this at https://chromiumcodereview.appspot.com/10830309/
SVN Base: https://v8.googlecode.com/svn/branches/bleeding_edge
Affected files:
M src/profile-generator.cc
Index: src/profile-generator.cc
diff --git a/src/profile-generator.cc b/src/profile-generator.cc
index
1a4139642c9e1a6a65edf12fc0d4a2b8fa627884..c062651c5615dec735288b5013ff20b5a3ca3b76
100644
--- a/src/profile-generator.cc
+++ b/src/profile-generator.cc
@@ -2007,11 +2007,24 @@ void V8HeapExplorer::ExtractMapReferences(int
entry, Map* map) {
SetInternalReference(map, entry,
"constructor", map->constructor(),
Map::kConstructorOffset);
- if (!map->instance_descriptors()->IsEmpty()) {
- TagObject(map->instance_descriptors(), "(map descriptors)");
- // TODO(verwaest): Check what to do here.
+ if (map->HasTransitionArray()) {
+ TransitionArray* transitions = map->transitions();
+ HeapEntry* transitions_entry = GetEntry(transitions);
+ if (transitions_entry != NULL &&
+ !transitions->descriptors()->IsEmpty()) {
+ int transitions_index = transitions_entry->index();
+ DescriptorArray* descriptors = transitions->descriptors();
+ TagObject(descriptors, "(map descriptors)");
+ SetInternalReference(transitions, transitions_index,
+ "descriptors", descriptors,
+ TransitionArray::kDescriptorsOffset);
+ IndexedReferencesExtractor refs_extractor(
+ this, transitions, transitions_index);
+ transitions->Iterate(&refs_extractor);
+ }
+ TagObject(transitions, "(transition array)");
SetInternalReference(map, entry,
- "descriptors", map->instance_descriptors(),
+ "transitions", transitions,
Map::kTransitionsOrBackPointerOffset);
}
SetInternalReference(map, entry,
--
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