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Commit 98f406f6 authored by Andreas Gampe's avatar Andreas Gampe
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Frameworks/base: Add tracing system properties 

Add system properties to support zygote-started method tracing.
These are needed as the limit on system properties does not allow
the reuse of the runtime extra options system property.

Bug: 21760614
Change-Id: I3785cc5715acadbee81ef7b45081ed780f1351d3
parent 2b5bec93

core/jni/AndroidRuntime.cpp

+20 −0
Original line number Diff line number Diff line
@@ -588,6 +588,8 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv) 
    char lockProfThresholdBuf[sizeof("-Xlockprofthreshold:")-1 + PROPERTY_VALUE_MAX];

    char nativeBridgeLibrary[sizeof("-XX:NativeBridge=") + PROPERTY_VALUE_MAX];

    char cpuAbiListBuf[sizeof("--cpu-abilist=") + PROPERTY_VALUE_MAX];

    char methodTraceFileBuf[sizeof("-Xmethod-trace-file:") + PROPERTY_VALUE_MAX];

    char methodTraceFileSizeBuf[sizeof("-Xmethod-trace-file-size:") + PROPERTY_VALUE_MAX];



    bool checkJni = false;

    property_get("dalvik.vm.checkjni", propBuf, "");
@@ -848,6 +850,24 @@ int AndroidRuntime::startVm(JavaVM** pJavaVM, JNIEnv** pEnv) 
                       profileMaxStackDepth,

                       "-Xprofile-max-stack-depth:");



    /*

     * Tracing options.

     */

    property_get("dalvik.vm.method-trace", propBuf, "false");

    if (strcmp(propBuf, "true") == 0) {

        addOption("-Xmethod-trace");

        parseRuntimeOption("dalvik.vm.method-trace-file",

                           methodTraceFileBuf,

                           "-Xmethod-trace-file:");

        parseRuntimeOption("dalvik.vm.method-trace-file-siz",

                           methodTraceFileSizeBuf,

                           "-Xmethod-trace-file-size:");

        property_get("dalvik.vm.method-trace-stream", propBuf, "false");

        if (strcmp(propBuf, "true") == 0) {

            addOption("-Xmethod-trace-stream");

        }

    }



    // Native bridge library. "0" means that native bridge is disabled.

    property_get("ro.dalvik.vm.native.bridge", propBuf, "");

    if (propBuf[0] == '\0') {