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-rw-r--r--core/java/android/app/ActivityManagerNative.java29
-rw-r--r--core/java/android/app/ActivityThread.java24
-rw-r--r--core/java/android/app/ApplicationThreadNative.java18
-rw-r--r--core/java/android/app/IActivityManager.java5
-rw-r--r--core/java/android/app/IApplicationThread.java2
5 files changed, 78 insertions, 0 deletions
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index f11dbec..53e6f34 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -979,6 +979,17 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
return true;
}
+ case PROFILE_CONTROL_TRANSACTION: {
+ data.enforceInterface(IActivityManager.descriptor);
+ String process = data.readString();
+ boolean start = data.readInt() != 0;
+ String path = data.readString();
+ boolean res = profileControl(process, start, path);
+ reply.writeNoException();
+ reply.writeInt(res ? 1 : 0);
+ return true;
+ }
+
case PEEK_SERVICE_TRANSACTION: {
data.enforceInterface(IActivityManager.descriptor);
Intent service = Intent.CREATOR.createFromParcel(data);
@@ -2131,5 +2142,23 @@ class ActivityManagerProxy implements IActivityManager
data.recycle();
return res;
}
+
+ public boolean profileControl(String process, boolean start,
+ String path) throws RemoteException
+ {
+ Parcel data = Parcel.obtain();
+ Parcel reply = Parcel.obtain();
+ data.writeInterfaceToken(IActivityManager.descriptor);
+ data.writeString(process);
+ data.writeInt(start ? 1 : 0);
+ data.writeString(path);
+ mRemote.transact(PROFILE_CONTROL_TRANSACTION, data, reply, 0);
+ reply.readException();
+ boolean res = reply.readInt() != 0;
+ reply.recycle();
+ data.recycle();
+ return res;
+ }
+
private IBinder mRemote;
}
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index bf5616e..f49005e 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -1449,6 +1449,10 @@ public final class ActivityThread {
}
}
+ public void profilerControl(boolean start, String path) {
+ queueOrSendMessage(H.PROFILER_CONTROL, path, start ? 1 : 0);
+ }
+
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
long nativeMax = Debug.getNativeHeapSize() / 1024;
@@ -1641,6 +1645,7 @@ public final class ActivityThread {
public static final int LOW_MEMORY = 124;
public static final int ACTIVITY_CONFIGURATION_CHANGED = 125;
public static final int RELAUNCH_ACTIVITY = 126;
+ public static final int PROFILER_CONTROL = 127;
String codeToString(int code) {
if (localLOGV) {
switch (code) {
@@ -1671,6 +1676,7 @@ public final class ActivityThread {
case LOW_MEMORY: return "LOW_MEMORY";
case ACTIVITY_CONFIGURATION_CHANGED: return "ACTIVITY_CONFIGURATION_CHANGED";
case RELAUNCH_ACTIVITY: return "RELAUNCH_ACTIVITY";
+ case PROFILER_CONTROL: return "PROFILER_CONTROL";
}
}
return "(unknown)";
@@ -1770,6 +1776,9 @@ public final class ActivityThread {
case ACTIVITY_CONFIGURATION_CHANGED:
handleActivityConfigurationChanged((IBinder)msg.obj);
break;
+ case PROFILER_CONTROL:
+ handleProfilerControl(msg.arg1 != 0, (String)msg.obj);
+ break;
}
}
}
@@ -3432,6 +3441,21 @@ public final class ActivityThread {
performConfigurationChanged(r.activity, mConfiguration);
}
+ final void handleProfilerControl(boolean start, String path) {
+ if (start) {
+ File file = new File(path);
+ file.getParentFile().mkdirs();
+ try {
+ Debug.startMethodTracing(file.toString(), 8 * 1024 * 1024);
+ } catch (RuntimeException e) {
+ Log.w(TAG, "Profiling failed on path " + path
+ + " -- can the process access this path?");
+ }
+ } else {
+ Debug.stopMethodTracing();
+ }
+ }
+
final void handleLowMemory() {
ArrayList<ComponentCallbacks> callbacks
= new ArrayList<ComponentCallbacks>();
diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index d2cf55a..bcc9302 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -322,6 +322,15 @@ public abstract class ApplicationThreadNative extends Binder
requestPss();
return true;
}
+
+ case PROFILER_CONTROL_TRANSACTION:
+ {
+ data.enforceInterface(IApplicationThread.descriptor);
+ boolean start = data.readInt() != 0;
+ String path = data.readString();
+ profilerControl(start, path);
+ return true;
+ }
}
return super.onTransact(code, data, reply, flags);
@@ -654,5 +663,14 @@ class ApplicationThreadProxy implements IApplicationThread {
data.recycle();
}
+ public void profilerControl(boolean start, String path) throws RemoteException {
+ Parcel data = Parcel.obtain();
+ data.writeInterfaceToken(IApplicationThread.descriptor);
+ data.writeInt(start ? 1 : 0);
+ data.writeString(path);
+ mRemote.transact(PROFILER_CONTROL_TRANSACTION, data, null,
+ IBinder.FLAG_ONEWAY);
+ data.recycle();
+ }
}
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index cd3701f..2ac6160 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -221,6 +221,10 @@ public interface IActivityManager extends IInterface {
// Get device configuration
public ConfigurationInfo getDeviceConfigurationInfo() throws RemoteException;
+ // Turn on/off profiling in a particular process.
+ public boolean profileControl(String process, boolean start,
+ String path) throws RemoteException;
+
/*
* Private non-Binder interfaces
*/
@@ -365,4 +369,5 @@ public interface IActivityManager extends IInterface {
int GET_RUNNING_APP_PROCESSES_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+82;
int GET_DEVICE_CONFIGURATION_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+83;
int PEEK_SERVICE_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+84;
+ int PROFILE_CONTROL_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+85;
}
diff --git a/core/java/android/app/IApplicationThread.java b/core/java/android/app/IApplicationThread.java
index 47476b5..9f3534b 100644
--- a/core/java/android/app/IApplicationThread.java
+++ b/core/java/android/app/IApplicationThread.java
@@ -86,6 +86,7 @@ public interface IApplicationThread extends IInterface {
void scheduleLowMemory() throws RemoteException;
void scheduleActivityConfigurationChanged(IBinder token) throws RemoteException;
void requestPss() throws RemoteException;
+ void profilerControl(boolean start, String path) throws RemoteException;
String descriptor = "android.app.IApplicationThread";
@@ -115,4 +116,5 @@ public interface IApplicationThread extends IInterface {
int SCHEDULE_ACTIVITY_CONFIGURATION_CHANGED_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+24;
int SCHEDULE_RELAUNCH_ACTIVITY_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+25;
int REQUEST_PSS_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+26;
+ int PROFILER_CONTROL_TRANSACTION = IBinder.FIRST_CALL_TRANSACTION+27;
}
generated by cgit v1.1 at 2025-10-20 12:49:56 +0000