diff options
| author | 2019-05-29 10:43:39 +0900 | |
|---|---|---|
| committer | 2019-07-15 23:16:49 +0000 | |
| commit | 2526b492a4810577c82340a691c5aa0dbec7aef2 (patch) | |
| tree | d155673cf8f4435a4cf53cbd91943f635a8b927c | |
| parent | 73b4106d7e0fed136a40afee96e2e186a751d31e (diff) | |
[FRAMEWORK] Ignore signal registration for debugging
It's difficult to identify native crash/error of 3rd party app.
Because they can control their app with own signal handling.
Therefore I would like to support the way to ignore signal
registration in 3rd party app with the specific property.
To enable this, do just setprop "debug.ignoreappsignalhandler 1".
Test: test app to hook signal, then setprop debug.ignoreappsignalhandler 1
Change-Id: I2af98a0f58e5ac039eab0ebe9c3780357aca7820
Merged-In: I2af98a0f58e5ac039eab0ebe9c3780357aca7820
Signed-off-by: randy.jeong <randy.jeong@samsung.com>
| -rw-r--r-- | core/java/com/android/internal/os/Zygote.java | 8 | ||||
| -rw-r--r-- | services/core/java/com/android/server/am/ActivityManagerService.java | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java index 14b511df390b..cfe05c966a79 100644 --- a/core/java/com/android/internal/os/Zygote.java +++ b/core/java/com/android/internal/os/Zygote.java @@ -99,6 +99,14 @@ public final class Zygote { */ public static final int USE_APP_IMAGE_STARTUP_CACHE = 1 << 16; + /** + * When set, application specified signal handlers are not chained (i.e, ignored) + * by the runtime. + * + * Used for debugging only. Usage: set debug.ignoreappsignalhandler to 1. + */ + public static final int DEBUG_IGNORE_APP_SIGNAL_HANDLER = 1 << 17; + /** No external storage should be mounted. */ public static final int MOUNT_EXTERNAL_NONE = IVold.REMOUNT_MODE_NONE; /** Default external storage should be mounted. */ diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java index 5ebd17360961..4eafe7c3eca0 100644 --- a/services/core/java/com/android/server/am/ActivityManagerService.java +++ b/services/core/java/com/android/server/am/ActivityManagerService.java @@ -4309,6 +4309,9 @@ public class ActivityManagerService extends IActivityManager.Stub if ("1".equals(SystemProperties.get("debug.assert"))) { runtimeFlags |= Zygote.DEBUG_ENABLE_ASSERT; } + if ("1".equals(SystemProperties.get("debug.ignoreappsignalhandler"))) { + runtimeFlags |= Zygote.DEBUG_IGNORE_APP_SIGNAL_HANDLER; + } if (mNativeDebuggingApp != null && mNativeDebuggingApp.equals(app.processName)) { // Enable all debug flags required by the native debugger. runtimeFlags |= Zygote.DEBUG_ALWAYS_JIT; // Don't interpret anything |