From d8f3ec6e8308400e9446b254fcca457f6e53ea13 Mon Sep 17 00:00:00 2001
From: Carl Shapiro <cshapiro@google.com>
Date: Mon, 12 Apr 2010 16:31:59 -0700
Subject: [PATCH] Add command line flags to enable lock profiling.

---
 core/jni/AndroidRuntime.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/core/jni/AndroidRuntime.cpp b/core/jni/AndroidRuntime.cpp
index 487f3d403975d..6660c276e9a8b 100644
--- a/core/jni/AndroidRuntime.cpp
+++ b/core/jni/AndroidRuntime.cpp
@@ -703,6 +703,24 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv)
         //mOptions.add(opt);
     }
 
+    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:") + sizeof(propBuf)];
+    property_get("dalvik.vm.lockprof.threshold", propBuf, "");
+    if (strlen(propBuf) > 0) {
+      strcpy(lockProfThresholdBuf, "-Xlockprofthreshold:");
+      strcat(lockProfThresholdBuf, propBuf);
+      opt.optionString = lockProfThresholdBuf;
+      mOptions.add(opt);
+    }
+
+    char lockProfSampleBuf[sizeof("-Xlockprofsample:") + sizeof(propBuf)];
+    property_get("dalvik.vm.lockprof.sample", propBuf, "");
+    if (strlen(propBuf) > 0) {
+      strcpy(lockProfSampleBuf, "-Xlockprofsample:");
+      strcat(lockProfSampleBuf, propBuf);
+      opt.optionString = lockProfSampleBuf;
+      mOptions.add(opt);
+    }
+
 #if defined(WITH_JIT)
     /* Minimal profile threshold to trigger JIT compilation */
     char jitThresholdBuf[sizeof("-Xjitthreshold:") + PROPERTY_VALUE_MAX];