Changeset 34969 in webkit for trunk/JavaScriptCore/JavaScriptCorePrefix.h

Timestamp:

Jul 2, 2008, 9:55:22 PM (17 years ago)

Author:

[email protected]

Message:

Add the ability to trace JavaScriptCore garabge collections using dtrace.

Reviewed by Sam Weinig.

• JavaScriptCore.xcodeproj/project.pbxproj: Generate the dtrace probe header

file when building on a new enough version of Mac OS X.

• JavaScriptCorePrefix.h: Add our standard Mac OS X version detection macros.
• kjs/Tracing.d: Declare three dtrace probes.
• kjs/Tracing.h: Include the generated dtrace macros if dtrace is available,

otherwise provide versions that do nothing.

• kjs/collector.cpp:

(KJS::Heap::collect): Fire dtrace probes when starting a collection, after the
mark phase has completed, and when the collection is complete.

• wtf/Platform.h: Define HAVE_DTRACE when building on a new enough version of Mac OS X.

File:

• trunk/JavaScriptCore/JavaScriptCorePrefix.h (modified) (1 diff)

trunk/JavaScriptCore/JavaScriptCorePrefix.h

@@ -26 +26 @@
 #endif
 
+#if defined(__APPLE__)
+#import <AvailabilityMacros.h>
+#if MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_4
+#define BUILDING_ON_TIGER 1
+#elif MAC_OS_X_VERSION_MAX_ALLOWED <= MAC_OS_X_VERSION_10_5
+#define BUILDING_ON_LEOPARD 1
+#endif
+#endif
+
 #ifdef __cplusplus
 #define new ("if you use new/delete make sure to include config.h at the top of the file"())