mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
synced 2024-09-06 17:42:25 +00:00
593 lines
24 KiB
Diff
593 lines
24 KiB
Diff
![]() |
From 60e744e11be94212d0bc796d8904da4c61af60e1 Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Sat, 14 Mar 2015 18:10:20 -0400
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Subject: [PATCH 01/12] add exec-based spawning support
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---
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.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
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.../com/android/internal/os/WrapperInit.java | 2 +-
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.../android/internal/os/ZygoteConnection.java | 8 ++
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3 files changed, 124 insertions(+), 1 deletion(-)
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create mode 100644 core/java/com/android/internal/os/ExecInit.java
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diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
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new file mode 100644
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index 00000000000..10edd64e0f9
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--- /dev/null
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+++ b/core/java/com/android/internal/os/ExecInit.java
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@@ -0,0 +1,115 @@
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+package com.android.internal.os;
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+
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+import android.os.Trace;
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+import android.system.ErrnoException;
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+import android.system.Os;
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+import android.util.Slog;
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+import android.util.TimingsTraceLog;
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+import dalvik.system.VMRuntime;
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+
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+/**
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+ * Startup class for the process.
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+ * @hide
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+ */
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+public class ExecInit {
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+ /**
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+ * Class not instantiable.
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+ */
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+ private ExecInit() {
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+ }
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+
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+ /**
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+ * The main function called when starting a runtime application.
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+ *
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+ * The first argument is the target SDK version for the app.
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+ *
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+ * The remaining arguments are passed to the runtime.
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+ *
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+ * @param args The command-line arguments.
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+ */
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+ public static void main(String[] args) {
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+ // Parse our mandatory argument.
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+ int targetSdkVersion = Integer.parseInt(args[0], 10);
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+
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+ // Mimic system Zygote preloading.
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+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
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+ Trace.TRACE_TAG_DALVIK));
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+
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+ // Launch the application.
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+ String[] runtimeArgs = new String[args.length - 1];
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+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
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+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
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+
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+ r.run();
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+ }
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+
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+ /**
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+ * Executes a runtime application with exec-based spawning.
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+ * This method never returns.
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+ *
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+ * @param niceName The nice name for the application, or null if none.
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+ * @param targetSdkVersion The target SDK version for the app.
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+ * @param args Arguments for {@link RuntimeInit#main}.
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+ */
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+ public static void execApplication(String niceName, int targetSdkVersion,
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+ String instructionSet, String[] args) {
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+ int niceArgs = niceName == null ? 0 : 1;
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+ int baseArgs = 5 + niceArgs;
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+ String[] argv = new String[baseArgs + args.length];
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+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
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+ argv[0] = "/system/bin/app_process64";
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+ } else {
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+ argv[0] = "/system/bin/app_process32";
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+ }
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+ argv[1] = "/system/bin";
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+ argv[2] = "--application";
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+ if (niceName != null) {
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+ argv[3] = "--nice-name=" + niceName;
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+ }
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+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
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+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
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+ System.arraycopy(args, 0, argv, baseArgs, args.length);
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+
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+ WrapperInit.preserveCapabilities();
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+ try {
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+ Os.execv(argv[0], argv);
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+ } catch (ErrnoException e) {
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+ throw new RuntimeException(e);
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+ }
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+ }
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+
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+ /**
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+ * The main function called when an application is started with exec-based spawning.
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+ *
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+ * When the app starts, the runtime starts {@link RuntimeInit#main}
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+ * which calls {@link main} which then calls this method.
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+ * So we don't need to call commonInit() here.
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+ *
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+ * @param targetSdkVersion target SDK version
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+ * @param argv arg strings
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+ */
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+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
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+ if (RuntimeInit.DEBUG) {
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+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
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+ }
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+
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+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
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+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
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+ ClassLoader classLoader = null;
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+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
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+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
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+
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+ // Install this classloader as the context classloader, too.
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+ Thread.currentThread().setContextClassLoader(classLoader);
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+
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+ // Remove the classpath from the arguments.
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+ String removedArgs[] = new String[argv.length - 2];
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+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
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+ argv = removedArgs;
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+ }
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+
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+ // Perform the same initialization that would happen after the Zygote forks.
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+ Zygote.nativePreApplicationInit();
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+ return RuntimeInit.applicationInit(targetSdkVersion, argv, classLoader);
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+ }
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+}
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diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
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index f0e779694c9..9f41a4136db 100644
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--- a/core/java/com/android/internal/os/WrapperInit.java
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+++ b/core/java/com/android/internal/os/WrapperInit.java
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@@ -183,7 +183,7 @@ public class WrapperInit {
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* This is acceptable here as failure will leave the wrapped app with strictly less
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* capabilities, which may make it crash, but not exceed its allowances.
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*/
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- private static void preserveCapabilities() {
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+ public static void preserveCapabilities() {
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StructCapUserHeader header = new StructCapUserHeader(
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OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
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StructCapUserData[] data;
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diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
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index e556dd4d824..1054d2fb9b1 100644
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--- a/core/java/com/android/internal/os/ZygoteConnection.java
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+++ b/core/java/com/android/internal/os/ZygoteConnection.java
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@@ -33,6 +33,7 @@ import android.net.Credentials;
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import android.net.LocalSocket;
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import android.os.Parcel;
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import android.os.Process;
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+import android.os.SystemProperties;
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import android.os.Trace;
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import android.system.ErrnoException;
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import android.system.Os;
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@@ -596,6 +597,13 @@ class ZygoteConnection {
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throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
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} else {
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if (!isZygote) {
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+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
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+ ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
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+ VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
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+
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+ // Should not get here.
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+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
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+ }
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return ZygoteInit.zygoteInit(parsedArgs.mTargetSdkVersion,
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parsedArgs.mRemainingArgs, null /* classLoader */);
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} else {
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--
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2.26.0
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From 148d6154d771cec6ff736d0f72abf192a5a35975 Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Tue, 14 May 2019 15:11:59 -0400
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Subject: [PATCH 02/12] avoid AssetManager errors with exec spawning
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This causes harmless errors and wastes time spawning a process that's
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not going to succeed.
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---
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core/jni/android_util_AssetManager.cpp | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
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index 2b471fec9c8..7a29db32808 100644
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--- a/core/jni/android_util_AssetManager.cpp
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+++ b/core/jni/android_util_AssetManager.cpp
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@@ -125,6 +125,10 @@ constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie)
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// This is called by zygote (running as user root) as part of preloadResources.
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static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
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+ // avoid triggering an error with exec-based spawning
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+ if (getuid() != 0) {
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+ return;
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+ }
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switch (pid_t pid = fork()) {
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case -1:
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PLOG(ERROR) << "failed to fork for idmap";
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--
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2.26.0
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From 2076c38e549f2b4032448159c1478e67a72a96b5 Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Tue, 21 May 2019 23:54:20 -0400
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Subject: [PATCH 03/12] disable exec spawning when using debugging options
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The debugging options are not yet supported probably, so disable exec
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spawning when doing debugging.
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---
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core/java/com/android/internal/os/ZygoteConnection.java | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
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index 1054d2fb9b1..b420385b1de 100644
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--- a/core/java/com/android/internal/os/ZygoteConnection.java
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+++ b/core/java/com/android/internal/os/ZygoteConnection.java
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@@ -597,7 +597,8 @@ class ZygoteConnection {
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throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
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} else {
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if (!isZygote) {
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- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
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+ if (SystemProperties.getBoolean("sys.spawn.exec", true) &&
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+ (parsedArgs.mRuntimeFlags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
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ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
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VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
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--
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2.26.0
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From 909317e350ea4c8874b01e73502dc0c7c78635ab Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Tue, 14 May 2019 14:24:21 -0400
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Subject: [PATCH 04/12] add parameter for avoiding full preload with exec
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---
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core/java/com/android/internal/os/ExecInit.java | 2 +-
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core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
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2 files changed, 6 insertions(+), 2 deletions(-)
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diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
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index 10edd64e0f9..3ba4664ae8c 100644
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--- a/core/java/com/android/internal/os/ExecInit.java
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+++ b/core/java/com/android/internal/os/ExecInit.java
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@@ -33,7 +33,7 @@ public class ExecInit {
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// Mimic system Zygote preloading.
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ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
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- Trace.TRACE_TAG_DALVIK));
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+ Trace.TRACE_TAG_DALVIK), false);
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// Launch the application.
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String[] runtimeArgs = new String[args.length - 1];
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diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
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index 7ec8309e47d..e59cb784dc7 100644
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--- a/core/java/com/android/internal/os/ZygoteInit.java
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+++ b/core/java/com/android/internal/os/ZygoteInit.java
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@@ -132,7 +132,7 @@ public class ZygoteInit {
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*/
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private static ClassLoader sCachedSystemServerClassLoader = null;
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- static void preload(TimingsTraceLog bootTimingsTraceLog) {
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+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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Log.d(TAG, "begin preload");
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bootTimingsTraceLog.traceBegin("BeginPreload");
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beginPreload();
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@@ -164,6 +164,10 @@ public class ZygoteInit {
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sPreloadComplete = true;
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}
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+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
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+ preload(bootTimingsTraceLog, true);
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+ }
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+
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public static void lazyPreload() {
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Preconditions.checkState(!sPreloadComplete);
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Log.i(TAG, "Lazily preloading resources.");
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--
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2.26.0
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From 4ffeae4cfb2f0acbb8080ab25ca6559c7329b80c Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Wed, 11 Sep 2019 06:43:55 -0400
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Subject: [PATCH 05/12] pass through fullPreload to libcore
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---
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core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++------
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1 file changed, 6 insertions(+), 6 deletions(-)
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diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
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index e59cb784dc7..22e3f549dad 100644
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--- a/core/java/com/android/internal/os/ZygoteInit.java
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+++ b/core/java/com/android/internal/os/ZygoteInit.java
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@@ -135,7 +135,7 @@ public class ZygoteInit {
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static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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Log.d(TAG, "begin preload");
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bootTimingsTraceLog.traceBegin("BeginPreload");
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- beginPreload();
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+ beginPreload(fullPreload);
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bootTimingsTraceLog.traceEnd(); // BeginPreload
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bootTimingsTraceLog.traceBegin("PreloadClasses");
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preloadClasses();
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@@ -157,7 +157,7 @@ public class ZygoteInit {
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// Ask the WebViewFactory to do any initialization that must run in the zygote process,
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// for memory sharing purposes.
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WebViewFactory.prepareWebViewInZygote();
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- endPreload();
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+ endPreload(fullPreload);
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warmUpJcaProviders();
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Log.d(TAG, "end preload");
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@@ -175,14 +175,14 @@ public class ZygoteInit {
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preload(new TimingsTraceLog("ZygoteInitTiming_lazy", Trace.TRACE_TAG_DALVIK));
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}
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- private static void beginPreload() {
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+ private static void beginPreload(boolean fullPreload) {
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Log.i(TAG, "Calling ZygoteHooks.beginPreload()");
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- ZygoteHooks.onBeginPreload();
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+ ZygoteHooks.onBeginPreload(fullPreload);
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}
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- private static void endPreload() {
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- ZygoteHooks.onEndPreload();
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+ private static void endPreload(boolean fullPreload) {
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+ ZygoteHooks.onEndPreload(fullPreload);
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Log.i(TAG, "Called ZygoteHooks.endPreload()");
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}
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--
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2.26.0
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From e2166aee853fad1b84fa17936d795535eaef374b Mon Sep 17 00:00:00 2001
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From: Daniel Micay <danielmicay@gmail.com>
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Date: Tue, 14 May 2019 14:28:27 -0400
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Subject: [PATCH 06/12] disable OpenGL preloading for exec spawning
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|
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---
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core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
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1 file changed, 5 insertions(+), 3 deletions(-)
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diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
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index 22e3f549dad..37be8d97987 100644
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--- a/core/java/com/android/internal/os/ZygoteInit.java
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+++ b/core/java/com/android/internal/os/ZygoteInit.java
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@@ -149,9 +149,11 @@ public class ZygoteInit {
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Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
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nativePreloadAppProcessHALs();
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Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
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- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
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- maybePreloadGraphicsDriver();
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- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
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+ if (fullPreload) {
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+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
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+ maybePreloadGraphicsDriver();
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||
|
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
|
||
|
+ }
|
||
|
preloadSharedLibraries();
|
||
|
preloadTextResources();
|
||
|
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From dff76e1e08bf67ebc5e4da8a2dcdf57a55e0d09b Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Tue, 14 May 2019 14:28:52 -0400
|
||
|
Subject: [PATCH 07/12] disable resource preloading for exec spawning
|
||
|
|
||
|
---
|
||
|
core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
|
||
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
||
|
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
index 37be8d97987..34c9f8530a7 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -143,9 +143,11 @@ public class ZygoteInit {
|
||
|
bootTimingsTraceLog.traceBegin("CacheNonBootClasspathClassLoaders");
|
||
|
cacheNonBootClasspathClassLoaders();
|
||
|
bootTimingsTraceLog.traceEnd(); // CacheNonBootClasspathClassLoaders
|
||
|
- bootTimingsTraceLog.traceBegin("PreloadResources");
|
||
|
- preloadResources();
|
||
|
- bootTimingsTraceLog.traceEnd(); // PreloadResources
|
||
|
+ if (fullPreload) {
|
||
|
+ bootTimingsTraceLog.traceBegin("PreloadResources");
|
||
|
+ preloadResources();
|
||
|
+ bootTimingsTraceLog.traceEnd(); // PreloadResources
|
||
|
+ }
|
||
|
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
|
||
|
nativePreloadAppProcessHALs();
|
||
|
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From 872568d6c67a63c411e33699b969b5b1563e58ce Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Tue, 14 May 2019 14:30:59 -0400
|
||
|
Subject: [PATCH 08/12] disable class preloading for exec spawning
|
||
|
|
||
|
---
|
||
|
core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
|
||
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
||
|
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
index 34c9f8530a7..0404ef53ca0 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -137,9 +137,11 @@ public class ZygoteInit {
|
||
|
bootTimingsTraceLog.traceBegin("BeginPreload");
|
||
|
beginPreload(fullPreload);
|
||
|
bootTimingsTraceLog.traceEnd(); // BeginPreload
|
||
|
- bootTimingsTraceLog.traceBegin("PreloadClasses");
|
||
|
- preloadClasses();
|
||
|
- bootTimingsTraceLog.traceEnd(); // PreloadClasses
|
||
|
+ if (fullPreload) {
|
||
|
+ bootTimingsTraceLog.traceBegin("PreloadClasses");
|
||
|
+ preloadClasses();
|
||
|
+ bootTimingsTraceLog.traceEnd(); // PreloadClasses
|
||
|
+ }
|
||
|
bootTimingsTraceLog.traceBegin("CacheNonBootClasspathClassLoaders");
|
||
|
cacheNonBootClasspathClassLoaders();
|
||
|
bootTimingsTraceLog.traceEnd(); // CacheNonBootClasspathClassLoaders
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From 230080cd158ef27c8fa3647dfa6f4c2cff4c70dd Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Tue, 14 May 2019 14:31:29 -0400
|
||
|
Subject: [PATCH 09/12] disable WebView reservation for exec spawning
|
||
|
|
||
|
---
|
||
|
core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
|
||
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
||
|
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
index 0404ef53ca0..94e58405ce6 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -160,9 +160,11 @@ public class ZygoteInit {
|
||
|
}
|
||
|
preloadSharedLibraries();
|
||
|
preloadTextResources();
|
||
|
- // Ask the WebViewFactory to do any initialization that must run in the zygote process,
|
||
|
- // for memory sharing purposes.
|
||
|
- WebViewFactory.prepareWebViewInZygote();
|
||
|
+ if (fullPreload) {
|
||
|
+ // Ask the WebViewFactory to do any initialization that must run in the zygote process,
|
||
|
+ // for memory sharing purposes.
|
||
|
+ WebViewFactory.prepareWebViewInZygote();
|
||
|
+ }
|
||
|
endPreload(fullPreload);
|
||
|
warmUpJcaProviders();
|
||
|
Log.d(TAG, "end preload");
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From f822fe138d5841cde0b154fa6f3a3d3200b58c07 Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Tue, 14 May 2019 14:34:32 -0400
|
||
|
Subject: [PATCH 10/12] 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 94e58405ce6..dbd24ef27d2 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -166,7 +166,7 @@ public class ZygoteInit {
|
||
|
WebViewFactory.prepareWebViewInZygote();
|
||
|
}
|
||
|
endPreload(fullPreload);
|
||
|
- warmUpJcaProviders();
|
||
|
+ warmUpJcaProviders(fullPreload);
|
||
|
Log.d(TAG, "end preload");
|
||
|
|
||
|
sPreloadComplete = true;
|
||
|
@@ -230,7 +230,7 @@ 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");
|
||
|
@@ -242,15 +242,17 @@ 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);
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From 430a93910f4a555e4e6f06b4f1634acb45e9d501 Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Wed, 11 Sep 2019 06:57:24 -0400
|
||
|
Subject: [PATCH 11/12] disable preloading classloaders for exec spawning
|
||
|
|
||
|
---
|
||
|
core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
|
||
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
||
|
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
index dbd24ef27d2..bf6234b565e 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -142,9 +142,11 @@ public class ZygoteInit {
|
||
|
preloadClasses();
|
||
|
bootTimingsTraceLog.traceEnd(); // PreloadClasses
|
||
|
}
|
||
|
- bootTimingsTraceLog.traceBegin("CacheNonBootClasspathClassLoaders");
|
||
|
- cacheNonBootClasspathClassLoaders();
|
||
|
- bootTimingsTraceLog.traceEnd(); // CacheNonBootClasspathClassLoaders
|
||
|
+ if (fullPreload) {
|
||
|
+ bootTimingsTraceLog.traceBegin("CacheNonBootClasspathClassLoaders");
|
||
|
+ cacheNonBootClasspathClassLoaders();
|
||
|
+ bootTimingsTraceLog.traceEnd(); // CacheNonBootClasspathClassLoaders
|
||
|
+ }
|
||
|
if (fullPreload) {
|
||
|
bootTimingsTraceLog.traceBegin("PreloadResources");
|
||
|
preloadResources();
|
||
|
--
|
||
|
2.26.0
|
||
|
|
||
|
|
||
|
From fc75b053f8bcd15a019915f06d9ddea6c46abcec Mon Sep 17 00:00:00 2001
|
||
|
From: Daniel Micay <danielmicay@gmail.com>
|
||
|
Date: Wed, 11 Sep 2019 06:58:51 -0400
|
||
|
Subject: [PATCH 12/12] disable preloading HALs for exec spawning
|
||
|
|
||
|
---
|
||
|
core/java/com/android/internal/os/ZygoteInit.java | 8 +++++---
|
||
|
1 file changed, 5 insertions(+), 3 deletions(-)
|
||
|
|
||
|
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
index bf6234b565e..b00fd9969a5 100644
|
||
|
--- a/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
+++ b/core/java/com/android/internal/os/ZygoteInit.java
|
||
|
@@ -152,9 +152,11 @@ public class ZygoteInit {
|
||
|
preloadResources();
|
||
|
bootTimingsTraceLog.traceEnd(); // PreloadResources
|
||
|
}
|
||
|
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
|
||
|
- nativePreloadAppProcessHALs();
|
||
|
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
|
||
|
+ if (fullPreload) {
|
||
|
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
|
||
|
+ nativePreloadAppProcessHALs();
|
||
|
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
|
||
|
+ }
|
||
|
if (fullPreload) {
|
||
|
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
|
||
|
maybePreloadGraphicsDriver();
|
||
|
--
|
||
|
2.26.0
|
||
|
|