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Commit 8eb891be authored by Calin Juravle's avatar Calin Juravle
Browse files

Make system server profiling an explicit runtime intent 

Pass an explicit flag to the runtime when we need to profile the system
server. This ensures that we only start the ProfileSaver and allocate the
code cache when needed.

Test: manual, on a device with system server profiling enabled
Bug: 74081010
Change-Id: I5647e0bfb47d31c0e39bb3f59650cc956f49c4db
parent e7b05b87

core/java/com/android/internal/os/Zygote.java

+4 −0
Original line number Diff line number Diff line
@@ -70,6 +70,10 @@ public final class Zygote { 
     */

    public static final int API_ENFORCEMENT_POLICY_SHIFT =

            Integer.numberOfTrailingZeros(API_ENFORCEMENT_POLICY_MASK);

    /**

     * Enable system server ART profiling.

     */

    public static final int PROFILE_SYSTEM_SERVER = 1 << 14;



    /** No external storage should be mounted. */

    public static final int MOUNT_EXTERNAL_NONE = 0;

core/java/com/android/internal/os/ZygoteInit.java

+6 −0
Original line number Diff line number Diff line
@@ -671,6 +671,12 @@ public class ZygoteInit { 
            ZygoteConnection.applyDebuggerSystemProperty(parsedArgs);

            ZygoteConnection.applyInvokeWithSystemProperty(parsedArgs);



            boolean profileSystemServer = SystemProperties.getBoolean(

                    "dalvik.vm.profilesystemserver", false);

            if (profileSystemServer) {

                parsedArgs.runtimeFlags |= Zygote.PROFILE_SYSTEM_SERVER;

            }



            /* Request to fork the system server process */

            pid = Zygote.forkSystemServer(

                    parsedArgs.uid, parsedArgs.gid,