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Commit fd8ed85a authored by Philip P. Moltmann's avatar Philip P. Moltmann
Browse files

Allow to attach jvmti agents from inside of process 

Test: cts-tradefed run singleCommand cts-dev -m CtsJvmtiAttachingTestCases
Bug: 65016018
Change-Id: I6d445afa288c6fec1d860150159fa05ed63cf517
parent 9009eabb

api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -30747,6 +30747,7 @@ package android.os { 
  }















  public final class Debug {













    method public static void attachJvmtiAgent(java.lang.String, java.lang.String) throws java.io.IOException;















    method public static deprecated void changeDebugPort(int);















    method public static void dumpHprofData(java.lang.String) throws java.io.IOException;















    method public static boolean dumpService(java.lang.String, java.io.FileDescriptor, java.lang.String[]);

























api/system-current.txt



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@@ -33470,6 +33470,7 @@ package android.os {













  }





























  public final class Debug {













    method public static void attachJvmtiAgent(java.lang.String, java.lang.String) throws java.io.IOException;















    method public static deprecated void changeDebugPort(int);















    method public static void dumpHprofData(java.lang.String) throws java.io.IOException;















    method public static boolean dumpService(java.lang.String, java.io.FileDescriptor, java.lang.String[]);

























api/test-current.txt



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@@ -30857,6 +30857,7 @@ package android.os {













  }





























  public final class Debug {













    method public static void attachJvmtiAgent(java.lang.String, java.lang.String) throws java.io.IOException;















    method public static deprecated void changeDebugPort(int);















    method public static void dumpHprofData(java.lang.String) throws java.io.IOException;















    method public static boolean dumpService(java.lang.String, java.io.FileDescriptor, java.lang.String[]);

























core/java/android/os/Debug.java



+23
−0




























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@@ -16,11 +16,14 @@





























package android.os;





























import android.annotation.NonNull;













import android.annotation.Nullable;















import android.app.AppGlobals;















import android.content.Context;















import android.util.Log;































import com.android.internal.util.FastPrintWriter;













import com.android.internal.util.Preconditions;















import com.android.internal.util.TypedProperties;































import dalvik.bytecode.OpcodeInfo;










@@ -2371,4 +2374,24 @@ public final class Debug













    public static String getCaller() {















        return getCaller(Thread.currentThread().getStackTrace(), 0);















    }



























    /**













     * Attach a library as a jvmti agent to the current runtime.













     *













     * @param library library containing the agent













     * @param options options passed to the agent













     *













     * @throws IOException If the agent could not be attached













     */













    public static void attachJvmtiAgent(@NonNull String library, @Nullable String options)













            throws IOException {













        Preconditions.checkNotNull(library);













        Preconditions.checkArgument(!library.contains("="));



























        if (options == null) {













            VMDebug.attachAgent(library);













        } else {













            VMDebug.attachAgent(library + "=" + options);













        }













    }















}