DivestOS/Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-9.patch
Tad 8a03e46c7e Add the exec-spawning toggle from GrapheneOS
Tested working on 18.1/klte

TODO: backport to 16.0

Signed-off-by: Tad <tad@spotco.us>
2022-03-28 16:14:37 -04:00

58 lines
2.4 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:34:32 -0400
Subject: [PATCH] disable JCA provider warm up for exec spawning
---
.../com/android/internal/os/ZygoteInit.java | 22 ++++++++++---------
1 file changed, 12 insertions(+), 10 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 04a323254c72..ad3b95ec67fc 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -159,7 +159,7 @@ public class ZygoteInit {
WebViewFactory.prepareWebViewInZygote();
}
endPreload(fullPreload);
- warmUpJcaProviders();
+ warmUpJcaProviders(fullPreload);
Log.d(TAG, "end preload");
sPreloadComplete = true;
@@ -229,7 +229,7 @@ public class ZygoteInit {
* By doing it here we avoid that each app does it when requesting a service from the provider
* for the first time.
*/
- private static void warmUpJcaProviders() {
+ private static void warmUpJcaProviders(boolean fullPreload) {
long startTime = SystemClock.uptimeMillis();
Trace.traceBegin(
Trace.TRACE_TAG_DALVIK, "Starting installation of AndroidKeyStoreProvider");
@@ -241,15 +241,17 @@ public class ZygoteInit {
+ (SystemClock.uptimeMillis() - startTime) + "ms.");
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- startTime = SystemClock.uptimeMillis();
- Trace.traceBegin(
- Trace.TRACE_TAG_DALVIK, "Starting warm up of JCA providers");
- for (Provider p : Security.getProviders()) {
- p.warmUpServiceProvision();
+ if (fullPreload) {
+ startTime = SystemClock.uptimeMillis();
+ Trace.traceBegin(
+ Trace.TRACE_TAG_DALVIK, "Starting warm up of JCA providers");
+ for (Provider p : Security.getProviders()) {
+ p.warmUpServiceProvision();
+ }
+ Log.i(TAG, "Warmed up JCA providers in "
+ + (SystemClock.uptimeMillis() - startTime) + "ms.");
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
}
- Log.i(TAG, "Warmed up JCA providers in "
- + (SystemClock.uptimeMillis() - startTime) + "ms.");
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
}
/**