ENH: Add Logging to GC Marking Phase
https://bugs.webkit.org/show_bug.cgi?id=88364
Reviewed by Filip Pizlo.
Source/JavaScriptCore:
Log GC marking to stderr or a file. The logging in controlled
with the define ENABLE_OBJECT_MARK_LOGGING in wtf/Platform.h.
If DATA_LOG_TO_FILE in wtf/DataLog.cpp is set to 1, output is
logged to a file otherwise it is logged to stderr.
When logging is enabled, the GC is built single threaded since the
log output from the various threads isn't buffered and output in a
thread safe manner.
* heap/Heap.cpp:
(JSC::Heap::markRoots):
* heap/MarkStack.cpp:
(JSC::MarkStackThreadSharedData::resetChildren):
(JSC::MarkStackThreadSharedData::childVisitCount):
(JSC::MarkStackThreadSharedData::markingThreadMain):
(JSC::MarkStackThreadSharedData::markingThreadStartFunc):
(JSC::MarkStackThreadSharedData::MarkStackThreadSharedData):
(JSC::MarkStackThreadSharedData::reset):
* heap/MarkStack.h:
(MarkStackThreadSharedData):
(MarkStack):
(JSC::MarkStack::sharedData):
(JSC::MarkStack::resetChildCount):
(JSC::MarkStack::childCount):
(JSC::MarkStack::incrementChildCount):
* runtime/JSArray.cpp:
(JSC::JSArray::visitChildren):
* runtime/JSCell.cpp:
(JSC::JSCell::className):
* runtime/JSCell.h:
(JSCell):
(JSC::JSCell::visitChildren):
* runtime/JSString.cpp:
(JSC::JSString::visitChildren):
* runtime/JSString.h:
(JSString):
* runtime/Structure.h:
(JSC::MarkStack::internalAppend):
Source/WTF:
* wtf/DataLog.cpp:
(WTF::dataLogString): Additional method to support GC Mark logging.
* wtf/DataLog.h:
* wtf/Platform.h: New ENABLE_OBJECT_MARK_LOGGING flag macro.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@119633 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/Source/JavaScriptCore/ChangeLog b/Source/JavaScriptCore/ChangeLog
index 651076a..d98bf55 100644
--- a/Source/JavaScriptCore/ChangeLog
+++ b/Source/JavaScriptCore/ChangeLog
@@ -1,3 +1,49 @@
+2012-06-06 Michael Saboff <msaboff@apple.com>
+
+ ENH: Add Logging to GC Marking Phase
+ https://bugs.webkit.org/show_bug.cgi?id=88364
+
+ Reviewed by Filip Pizlo.
+
+ Log GC marking to stderr or a file. The logging in controlled
+ with the define ENABLE_OBJECT_MARK_LOGGING in wtf/Platform.h.
+ If DATA_LOG_TO_FILE in wtf/DataLog.cpp is set to 1, output is
+ logged to a file otherwise it is logged to stderr.
+
+ When logging is enabled, the GC is built single threaded since the
+ log output from the various threads isn't buffered and output in a
+ thread safe manner.
+
+ * heap/Heap.cpp:
+ (JSC::Heap::markRoots):
+ * heap/MarkStack.cpp:
+ (JSC::MarkStackThreadSharedData::resetChildren):
+ (JSC::MarkStackThreadSharedData::childVisitCount):
+ (JSC::MarkStackThreadSharedData::markingThreadMain):
+ (JSC::MarkStackThreadSharedData::markingThreadStartFunc):
+ (JSC::MarkStackThreadSharedData::MarkStackThreadSharedData):
+ (JSC::MarkStackThreadSharedData::reset):
+ * heap/MarkStack.h:
+ (MarkStackThreadSharedData):
+ (MarkStack):
+ (JSC::MarkStack::sharedData):
+ (JSC::MarkStack::resetChildCount):
+ (JSC::MarkStack::childCount):
+ (JSC::MarkStack::incrementChildCount):
+ * runtime/JSArray.cpp:
+ (JSC::JSArray::visitChildren):
+ * runtime/JSCell.cpp:
+ (JSC::JSCell::className):
+ * runtime/JSCell.h:
+ (JSCell):
+ (JSC::JSCell::visitChildren):
+ * runtime/JSString.cpp:
+ (JSC::JSString::visitChildren):
+ * runtime/JSString.h:
+ (JSString):
+ * runtime/Structure.h:
+ (JSC::MarkStack::internalAppend):
+
2012-06-06 Gavin Barraclough <barraclough@apple.com>
Assigning to a static property should not change iteration order
