Git-Mirrors/DivestOS
1
0
Fork 0
mirror of https://github.com/Divested-Mobile/DivestOS-Build.git synced 2025-12-15 00:29:02 -05:00
Code Issues Projects Releases Packages Wiki Activity

Fix/Add exec based spawning patchsets from GrapheneOS

Browse source 
11 14c3c1d4cd
   ac1943345e
   1abb805041
   2e07ab8c24
   0044836677
   c561811fad
   7a848373ef
   89646bdeb1
   2a70bbac4a
   d414dcaa35
   b4cd877e3a
   98634286bb
11 4c2635390c
11 add34a4bc6
11 a2b51906de
10 527787f3c8
   ffde474ad7
   aa87e487c4
   c906fe9722
   c69c3eecd4
   b2303adccc
   5bb05db6f7
   536b497688
   24802a832b
   ce6dcc2368
   3d3d5c4d38
   2eda592b79
10 29f28b53c0
10 13a992c716
9  750efbf6bc
   ed563b6f26
   aad3c7d750
   da3180f9a8
   68773a29b7
   283b3fa09c
   f133136b65
   01a01ce5f6
   17c309c098
   8806ec3ef1

Signed-off-by: Tad <tad@spotco.us>
This commit is contained in:
Tad 2022-03-15 15:41:05 -04:00
parent f015dd348f
commit 209481c53e
44 changed files with 1920 additions and 1109 deletions
Download patch file Download diff file Expand all files Collapse all files

164
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-1.patch Normal file
View file

@ -0,0 +1,164 @@
From 750efbf6bce8bbe850679eb6a90b00108314226c Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Sat, 14 Mar 2015 18:10:20 -0400
Subject: [PATCH] add exec-based spawning support
---
.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
.../com/android/internal/os/WrapperInit.java | 2 +-
.../android/internal/os/ZygoteConnection.java | 7 ++
3 files changed, 123 insertions(+), 1 deletion(-)
create mode 100644 core/java/com/android/internal/os/ExecInit.java
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
new file mode 100644
index 000000000000..10edd64e0f95
--- /dev/null
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -0,0 +1,115 @@
+package com.android.internal.os;
+
+import android.os.Trace;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.Slog;
+import android.util.TimingsTraceLog;
+import dalvik.system.VMRuntime;
+
+/**
+ * Startup class for the process.
+ * @hide
+ */
+public class ExecInit {
+ /**
+ * Class not instantiable.
+ */
+ private ExecInit() {
+ }
+
+ /**
+ * The main function called when starting a runtime application.
+ *
+ * The first argument is the target SDK version for the app.
+ *
+ * The remaining arguments are passed to the runtime.
+ *
+ * @param args The command-line arguments.
+ */
+ public static void main(String[] args) {
+ // Parse our mandatory argument.
+ int targetSdkVersion = Integer.parseInt(args[0], 10);
+
+ // Mimic system Zygote preloading.
+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
+ Trace.TRACE_TAG_DALVIK));
+
+ // Launch the application.
+ String[] runtimeArgs = new String[args.length - 1];
+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
+
+ r.run();
+ }
+
+ /**
+ * Executes a runtime application with exec-based spawning.
+ * This method never returns.
+ *
+ * @param niceName The nice name for the application, or null if none.
+ * @param targetSdkVersion The target SDK version for the app.
+ * @param args Arguments for {@link RuntimeInit#main}.
+ */
+ public static void execApplication(String niceName, int targetSdkVersion,
+ String instructionSet, String[] args) {
+ int niceArgs = niceName == null ? 0 : 1;
+ int baseArgs = 5 + niceArgs;
+ String[] argv = new String[baseArgs + args.length];
+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
+ argv[0] = "/system/bin/app_process64";
+ } else {
+ argv[0] = "/system/bin/app_process32";
+ }
+ argv[1] = "/system/bin";
+ argv[2] = "--application";
+ if (niceName != null) {
+ argv[3] = "--nice-name=" + niceName;
+ }
+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ System.arraycopy(args, 0, argv, baseArgs, args.length);
+
+ WrapperInit.preserveCapabilities();
+ try {
+ Os.execv(argv[0], argv);
+ } catch (ErrnoException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * The main function called when an application is started with exec-based spawning.
+ *
+ * When the app starts, the runtime starts {@link RuntimeInit#main}
+ * which calls {@link main} which then calls this method.
+ * So we don't need to call commonInit() here.
+ *
+ * @param targetSdkVersion target SDK version
+ * @param argv arg strings
+ */
+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
+ if (RuntimeInit.DEBUG) {
+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
+ }
+
+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
+ ClassLoader classLoader = null;
+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
+
+ // Install this classloader as the context classloader, too.
+ Thread.currentThread().setContextClassLoader(classLoader);
+
+ // Remove the classpath from the arguments.
+ String removedArgs[] = new String[argv.length - 2];
+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
+ argv = removedArgs;
+ }
+
+ // Perform the same initialization that would happen after the Zygote forks.
+ Zygote.nativePreApplicationInit();
+ return RuntimeInit.applicationInit(targetSdkVersion, argv, classLoader);
+ }
+}
diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
index f0e779694c90..9f41a4136db9 100644
--- a/core/java/com/android/internal/os/WrapperInit.java
+++ b/core/java/com/android/internal/os/WrapperInit.java
@@ -183,7 +183,7 @@ private static Runnable wrapperInit(int targetSdkVersion, String[] argv) {
* This is acceptable here as failure will leave the wrapped app with strictly less
* capabilities, which may make it crash, but not exceed its allowances.
*/
- private static void preserveCapabilities() {
+ public static void preserveCapabilities() {
StructCapUserHeader header = new StructCapUserHeader(
OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
StructCapUserData[] data;
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index f537e3e2897b..7d51be259c20 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -880,6 +880,13 @@ private Runnable handleChildProc(Arguments parsedArgs, FileDescriptor[] descript
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ ExecInit.execApplication(parsedArgs.niceName, parsedArgs.targetSdkVersion,
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.remainingArgs);
+
+ // Should not get here.
+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
+ }
return ZygoteInit.zygoteInit(parsedArgs.targetSdkVersion, parsedArgs.remainingArgs,
null /* classLoader */);
} else {

24
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-10.patch Normal file
View file

@ -0,0 +1,24 @@
From 8806ec3ef166fe1fd1eeb690ace6dd5a7682195c Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 21 May 2019 23:54:20 -0400
Subject: [PATCH] disable exec spawning when using debugging options
The debugging options are not yet supported probably, so disable exec
spawning when doing debugging.
---
core/java/com/android/internal/os/ZygoteConnection.java | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 7d51be259c20..48a68d96e84c 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -880,7 +880,7 @@ private Runnable handleChildProc(Arguments parsedArgs, FileDescriptor[] descript
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true) && parsedArgs.runtimeFlags == 0) {
ExecInit.execApplication(parsedArgs.niceName, parsedArgs.targetSdkVersion,
VMRuntime.getCurrentInstructionSet(), parsedArgs.remainingArgs);

47
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-2.patch Normal file
View file

@ -0,0 +1,47 @@
From ed563b6f26452581f9dba1c1ef245e893f5045ca Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:24:21 -0400
Subject: [PATCH] add parameter for avoiding full preload with exec
---
core/java/com/android/internal/os/ExecInit.java | 2 +-
core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 10edd64e0f95..3ba4664ae8cf 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -33,7 +33,7 @@ public static void main(String[] args) {
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
- Trace.TRACE_TAG_DALVIK));
+ Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
String[] runtimeArgs = new String[args.length - 1];
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index da195601f725..6acaccbbc3ef 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -120,7 +120,7 @@
private static boolean sPreloadComplete;
- static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
beginIcuCachePinning();
@@ -149,6 +149,10 @@ static void preload(TimingsTraceLog bootTimingsTraceLog) {
sPreloadComplete = true;
}
+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ preload(bootTimingsTraceLog, true);
+ }
+
public static void lazyPreload() {
Preconditions.checkState(!sPreloadComplete);
Log.i(TAG, "Lazily preloading resources.");

28
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-3.patch Normal file
View file

@ -0,0 +1,28 @@
From aad3c7d750f9814344514cb187112e50574bb382 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:27 -0400
Subject: [PATCH] disable OpenGL 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 6acaccbbc3ef..09ec9f235451 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -134,9 +134,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
nativePreloadAppProcessHALs();
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadOpenGL");
- preloadOpenGL();
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ if (fullPreload) {
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadOpenGL");
+ preloadOpenGL();
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ }
preloadSharedLibraries();
preloadTextResources();
// Ask the WebViewFactory to do any initialization that must run in the zygote process,

28
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-4.patch Normal file
View file

@ -0,0 +1,28 @@
From da3180f9a8e75b10826ce2faf046c0f3912dfd59 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:52 -0400
Subject: [PATCH] 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 09ec9f235451..17bdfaa79d0b 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -128,9 +128,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
bootTimingsTraceLog.traceEnd(); // PreloadClasses
- 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);

39
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-5.patch Normal file
View file

@ -0,0 +1,39 @@
From 68773a29b77d6e87201b3af1b0b21e9385a1bdb0 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:29:36 -0400
Subject: [PATCH] disable ICU cache pinning for exec spawning
---
core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 17bdfaa79d0b..1dfe23e32937 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -122,9 +122,11 @@
static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
- bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
- beginIcuCachePinning();
- bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
+ if (fullPreload) {
+ bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
+ beginIcuCachePinning();
+ bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
+ }
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
bootTimingsTraceLog.traceEnd(); // PreloadClasses
@@ -146,7 +148,9 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
// for memory sharing purposes.
WebViewFactory.prepareWebViewInZygote();
- endIcuCachePinning();
+ if (fullPreload) {
+ endIcuCachePinning();
+ }
warmUpJcaProviders();
Log.d(TAG, "end preload");

28
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-6.patch Normal file
View file

@ -0,0 +1,28 @@
From 283b3fa09c002861fa5525a2be8071953e05e794 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:30:59 -0400
Subject: [PATCH] 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 1dfe23e32937..fae438512d8f 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -127,9 +127,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
beginIcuCachePinning();
bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
}
- bootTimingsTraceLog.traceBegin("PreloadClasses");
- preloadClasses();
- bootTimingsTraceLog.traceEnd(); // PreloadClasses
+ if (fullPreload) {
+ bootTimingsTraceLog.traceBegin("PreloadClasses");
+ preloadClasses();
+ bootTimingsTraceLog.traceEnd(); // PreloadClasses
+ }
if (fullPreload) {
bootTimingsTraceLog.traceBegin("PreloadResources");
preloadResources();

28
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-7.patch Normal file
View file

@ -0,0 +1,28 @@
From f133136b65841735895ec15acdd2c60ecd45e72d Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:31:29 -0400
Subject: [PATCH] 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 fae438512d8f..75d10f6d92a8 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -147,9 +147,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
}
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();
+ }
if (fullPreload) {
endIcuCachePinning();
}

57
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-8.patch Normal file
View file

@ -0,0 +1,57 @@
From 01a01ce5f6570f31232bc488da5683481ca32388 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 75d10f6d92a8..214dbd451099 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -155,7 +155,7 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
if (fullPreload) {
endIcuCachePinning();
}
- warmUpJcaProviders();
+ warmUpJcaProviders(fullPreload);
Log.d(TAG, "end preload");
sPreloadComplete = true;
@@ -223,7 +223,7 @@ private static void preloadTextResources() {
* 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");
@@ -235,15 +235,17 @@ private static void warmUpJcaProviders() {
+ (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);
}
/**

26
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning-9.patch Normal file
View file

@ -0,0 +1,26 @@
From 17c309c0988ccea718ee0779d23387d6af40a80d Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 15:11:59 -0400
Subject: [PATCH] avoid AssetManager errors with exec spawning
This causes harmless errors and wastes time spawning a process that's
not going to succeed.
---
core/jni/android_util_AssetManager.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
index fa9f44557d3f..08060163017f 100644
--- a/core/jni/android_util_AssetManager.cpp
+++ b/core/jni/android_util_AssetManager.cpp
@@ -111,6 +111,10 @@ constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie)
// This is called by zygote (running as user root) as part of preloadResources.
static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
+ // avoid triggering an error with exec-based spawning
+ if (getuid() != 0) {
+ return;
+ }
switch (pid_t pid = fork()) {
case -1:
PLOG(ERROR) << "failed to fork for idmap";

508
Patches/LineageOS-16.0/android_frameworks_base/0010-Exec_Based_Spawning.patch
View file

@ -1,508 +0,0 @@
From 4ac855656e2df723abb5da9768b3bce77a135490 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Sat, 14 Mar 2015 18:10:20 -0400
Subject: [PATCH 01/10] add exec-based spawning support
---
.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
.../com/android/internal/os/WrapperInit.java | 2 +-
.../android/internal/os/ZygoteConnection.java | 7 ++
3 files changed, 123 insertions(+), 1 deletion(-)
create mode 100644 core/java/com/android/internal/os/ExecInit.java
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
new file mode 100644
index 00000000000..10edd64e0f9
--- /dev/null
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -0,0 +1,115 @@
+package com.android.internal.os;
+
+import android.os.Trace;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.Slog;
+import android.util.TimingsTraceLog;
+import dalvik.system.VMRuntime;
+
+/**
+ * Startup class for the process.
+ * @hide
+ */
+public class ExecInit {
+ /**
+ * Class not instantiable.
+ */
+ private ExecInit() {
+ }
+
+ /**
+ * The main function called when starting a runtime application.
+ *
+ * The first argument is the target SDK version for the app.
+ *
+ * The remaining arguments are passed to the runtime.
+ *
+ * @param args The command-line arguments.
+ */
+ public static void main(String[] args) {
+ // Parse our mandatory argument.
+ int targetSdkVersion = Integer.parseInt(args[0], 10);
+
+ // Mimic system Zygote preloading.
+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
+ Trace.TRACE_TAG_DALVIK));
+
+ // Launch the application.
+ String[] runtimeArgs = new String[args.length - 1];
+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
+
+ r.run();
+ }
+
+ /**
+ * Executes a runtime application with exec-based spawning.
+ * This method never returns.
+ *
+ * @param niceName The nice name for the application, or null if none.
+ * @param targetSdkVersion The target SDK version for the app.
+ * @param args Arguments for {@link RuntimeInit#main}.
+ */
+ public static void execApplication(String niceName, int targetSdkVersion,
+ String instructionSet, String[] args) {
+ int niceArgs = niceName == null ? 0 : 1;
+ int baseArgs = 5 + niceArgs;
+ String[] argv = new String[baseArgs + args.length];
+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
+ argv[0] = "/system/bin/app_process64";
+ } else {
+ argv[0] = "/system/bin/app_process32";
+ }
+ argv[1] = "/system/bin";
+ argv[2] = "--application";
+ if (niceName != null) {
+ argv[3] = "--nice-name=" + niceName;
+ }
+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ System.arraycopy(args, 0, argv, baseArgs, args.length);
+
+ WrapperInit.preserveCapabilities();
+ try {
+ Os.execv(argv[0], argv);
+ } catch (ErrnoException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * The main function called when an application is started with exec-based spawning.
+ *
+ * When the app starts, the runtime starts {@link RuntimeInit#main}
+ * which calls {@link main} which then calls this method.
+ * So we don't need to call commonInit() here.
+ *
+ * @param targetSdkVersion target SDK version
+ * @param argv arg strings
+ */
+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
+ if (RuntimeInit.DEBUG) {
+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
+ }
+
+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
+ ClassLoader classLoader = null;
+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
+
+ // Install this classloader as the context classloader, too.
+ Thread.currentThread().setContextClassLoader(classLoader);
+
+ // Remove the classpath from the arguments.
+ String removedArgs[] = new String[argv.length - 2];
+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
+ argv = removedArgs;
+ }
+
+ // Perform the same initialization that would happen after the Zygote forks.
+ Zygote.nativePreApplicationInit();
+ return RuntimeInit.applicationInit(targetSdkVersion, argv, classLoader);
+ }
+}
diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
index f0e779694c9..9f41a4136db 100644
--- a/core/java/com/android/internal/os/WrapperInit.java
+++ b/core/java/com/android/internal/os/WrapperInit.java
@@ -183,7 +183,7 @@ public class WrapperInit {
* This is acceptable here as failure will leave the wrapped app with strictly less
* capabilities, which may make it crash, but not exceed its allowances.
*/
- private static void preserveCapabilities() {
+ public static void preserveCapabilities() {
StructCapUserHeader header = new StructCapUserHeader(
OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
StructCapUserData[] data;
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index f537e3e2897..7d51be259c2 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -880,6 +880,13 @@ class ZygoteConnection {
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ ExecInit.execApplication(parsedArgs.niceName, parsedArgs.targetSdkVersion,
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.remainingArgs);
+
+ // Should not get here.
+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
+ }
return ZygoteInit.zygoteInit(parsedArgs.targetSdkVersion, parsedArgs.remainingArgs,
null /* classLoader */);
} else {
--
2.21.0
From 654f1cc80bd8d51a04f01c56e97bface4bce7811 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:24:21 -0400
Subject: [PATCH 02/10] add parameter for avoiding full preload with exec
---
core/java/com/android/internal/os/ExecInit.java | 2 +-
core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 10edd64e0f9..3ba4664ae8c 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -33,7 +33,7 @@ public class ExecInit {
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
- Trace.TRACE_TAG_DALVIK));
+ Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
String[] runtimeArgs = new String[args.length - 1];
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index da195601f72..6acaccbbc3e 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -120,7 +120,7 @@ public class ZygoteInit {
private static boolean sPreloadComplete;
- static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
beginIcuCachePinning();
@@ -149,6 +149,10 @@ public class ZygoteInit {
sPreloadComplete = true;
}
+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ preload(bootTimingsTraceLog, true);
+ }
+
public static void lazyPreload() {
Preconditions.checkState(!sPreloadComplete);
Log.i(TAG, "Lazily preloading resources.");
--
2.21.0
From fa13759a9f3c7a4860a6e2aa559cd454e31ac621 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:27 -0400
Subject: [PATCH 03/10] disable OpenGL 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 6acaccbbc3e..09ec9f23545 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -134,9 +134,11 @@ public class ZygoteInit {
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
nativePreloadAppProcessHALs();
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadOpenGL");
- preloadOpenGL();
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ if (fullPreload) {
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadOpenGL");
+ preloadOpenGL();
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ }
preloadSharedLibraries();
preloadTextResources();
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
--
2.21.0
From 960ccd579d883ef6426e2d84cff2982cb5e0d83b Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:52 -0400
Subject: [PATCH 04/10] 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 09ec9f23545..17bdfaa79d0 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -128,9 +128,11 @@ public class ZygoteInit {
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
bootTimingsTraceLog.traceEnd(); // PreloadClasses
- 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);
--
2.21.0
From 88e59153886fd6e1c60bdf5b0fe7ab9280cd8cae Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:29:36 -0400
Subject: [PATCH 05/10] disable ICU cache pinning for exec spawning
---
core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 17bdfaa79d0..1dfe23e3293 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -122,9 +122,11 @@ public class ZygoteInit {
static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
- bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
- beginIcuCachePinning();
- bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
+ if (fullPreload) {
+ bootTimingsTraceLog.traceBegin("BeginIcuCachePinning");
+ beginIcuCachePinning();
+ bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
+ }
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
bootTimingsTraceLog.traceEnd(); // PreloadClasses
@@ -146,7 +148,9 @@ public class ZygoteInit {
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
// for memory sharing purposes.
WebViewFactory.prepareWebViewInZygote();
- endIcuCachePinning();
+ if (fullPreload) {
+ endIcuCachePinning();
+ }
warmUpJcaProviders();
Log.d(TAG, "end preload");
--
2.21.0
From 96fa644f641d0a90a2642219c9dcd49812ff9411 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:30:59 -0400
Subject: [PATCH 06/10] 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 1dfe23e3293..fae438512d8 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -127,9 +127,11 @@ public class ZygoteInit {
beginIcuCachePinning();
bootTimingsTraceLog.traceEnd(); // BeginIcuCachePinning
}
- bootTimingsTraceLog.traceBegin("PreloadClasses");
- preloadClasses();
- bootTimingsTraceLog.traceEnd(); // PreloadClasses
+ if (fullPreload) {
+ bootTimingsTraceLog.traceBegin("PreloadClasses");
+ preloadClasses();
+ bootTimingsTraceLog.traceEnd(); // PreloadClasses
+ }
if (fullPreload) {
bootTimingsTraceLog.traceBegin("PreloadResources");
preloadResources();
--
2.21.0
From 28dc5c52766abda740c25cc2650b68fa8328d8a8 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:31:29 -0400
Subject: [PATCH 07/10] 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 fae438512d8..75d10f6d92a 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -147,9 +147,11 @@ 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();
+ }
if (fullPreload) {
endIcuCachePinning();
}
--
2.21.0
From 8998af03229d57b69f4dd9b2a3656ea310445568 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:34:32 -0400
Subject: [PATCH 08/10] 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 75d10f6d92a..214dbd45109 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -155,7 +155,7 @@ public class ZygoteInit {
if (fullPreload) {
endIcuCachePinning();
}
- warmUpJcaProviders();
+ warmUpJcaProviders(fullPreload);
Log.d(TAG, "end preload");
sPreloadComplete = true;
@@ -223,7 +223,7 @@ 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");
@@ -235,15 +235,17 @@ 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);
}
/**
--
2.21.0
From a60d5e0c25c9c40eb3cab1ad89ad9f1b37c3918a Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 15:11:59 -0400
Subject: [PATCH 09/10] avoid AssetManager errors with exec spawning
This causes harmless errors and wastes time spawning a process that's
not going to succeed.
---
core/jni/android_util_AssetManager.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
index fa9f44557d3..08060163017 100644
--- a/core/jni/android_util_AssetManager.cpp
+++ b/core/jni/android_util_AssetManager.cpp
@@ -111,6 +111,10 @@ constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie)
// This is called by zygote (running as user root) as part of preloadResources.
static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
+ // avoid triggering an error with exec-based spawning
+ if (getuid() != 0) {
+ return;
+ }
switch (pid_t pid = fork()) {
case -1:
PLOG(ERROR) << "failed to fork for idmap";
--
2.21.0
From b086a665c2b3b25535205d29c5dbe9bb2ba6e47a Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 21 May 2019 23:54:20 -0400
Subject: [PATCH 10/10] disable exec spawning when using debugging options
The debugging options are not yet supported probably, so disable exec
spawning when doing debugging.
---
core/java/com/android/internal/os/ZygoteConnection.java | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 7d51be259c2..48a68d96e84 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -880,7 +880,7 @@ class ZygoteConnection {
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true) && parsedArgs.runtimeFlags == 0) {
ExecInit.execApplication(parsedArgs.niceName, parsedArgs.targetSdkVersion,
VMRuntime.getCurrentInstructionSet(), parsedArgs.remainingArgs);
--
2.21.0

172
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-1.patch Normal file
View file

@ -0,0 +1,172 @@
From 527787f3c82d385c98c2e954bbbf092937100085 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Sat, 14 Mar 2015 18:10:20 -0400
Subject: [PATCH] add exec-based spawning support
---
.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
.../com/android/internal/os/WrapperInit.java | 2 +-
.../android/internal/os/ZygoteConnection.java | 8 ++
3 files changed, 124 insertions(+), 1 deletion(-)
create mode 100644 core/java/com/android/internal/os/ExecInit.java
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
new file mode 100644
index 000000000000..10edd64e0f95
--- /dev/null
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -0,0 +1,115 @@
+package com.android.internal.os;
+
+import android.os.Trace;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.Slog;
+import android.util.TimingsTraceLog;
+import dalvik.system.VMRuntime;
+
+/**
+ * Startup class for the process.
+ * @hide
+ */
+public class ExecInit {
+ /**
+ * Class not instantiable.
+ */
+ private ExecInit() {
+ }
+
+ /**
+ * The main function called when starting a runtime application.
+ *
+ * The first argument is the target SDK version for the app.
+ *
+ * The remaining arguments are passed to the runtime.
+ *
+ * @param args The command-line arguments.
+ */
+ public static void main(String[] args) {
+ // Parse our mandatory argument.
+ int targetSdkVersion = Integer.parseInt(args[0], 10);
+
+ // Mimic system Zygote preloading.
+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
+ Trace.TRACE_TAG_DALVIK));
+
+ // Launch the application.
+ String[] runtimeArgs = new String[args.length - 1];
+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
+
+ r.run();
+ }
+
+ /**
+ * Executes a runtime application with exec-based spawning.
+ * This method never returns.
+ *
+ * @param niceName The nice name for the application, or null if none.
+ * @param targetSdkVersion The target SDK version for the app.
+ * @param args Arguments for {@link RuntimeInit#main}.
+ */
+ public static void execApplication(String niceName, int targetSdkVersion,
+ String instructionSet, String[] args) {
+ int niceArgs = niceName == null ? 0 : 1;
+ int baseArgs = 5 + niceArgs;
+ String[] argv = new String[baseArgs + args.length];
+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
+ argv[0] = "/system/bin/app_process64";
+ } else {
+ argv[0] = "/system/bin/app_process32";
+ }
+ argv[1] = "/system/bin";
+ argv[2] = "--application";
+ if (niceName != null) {
+ argv[3] = "--nice-name=" + niceName;
+ }
+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ System.arraycopy(args, 0, argv, baseArgs, args.length);
+
+ WrapperInit.preserveCapabilities();
+ try {
+ Os.execv(argv[0], argv);
+ } catch (ErrnoException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * The main function called when an application is started with exec-based spawning.
+ *
+ * When the app starts, the runtime starts {@link RuntimeInit#main}
+ * which calls {@link main} which then calls this method.
+ * So we don't need to call commonInit() here.
+ *
+ * @param targetSdkVersion target SDK version
+ * @param argv arg strings
+ */
+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
+ if (RuntimeInit.DEBUG) {
+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
+ }
+
+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
+ ClassLoader classLoader = null;
+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
+
+ // Install this classloader as the context classloader, too.
+ Thread.currentThread().setContextClassLoader(classLoader);
+
+ // Remove the classpath from the arguments.
+ String removedArgs[] = new String[argv.length - 2];
+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
+ argv = removedArgs;
+ }
+
+ // Perform the same initialization that would happen after the Zygote forks.
+ Zygote.nativePreApplicationInit();
+ return RuntimeInit.applicationInit(targetSdkVersion, argv, classLoader);
+ }
+}
diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
index f0e779694c90..9f41a4136db9 100644
--- a/core/java/com/android/internal/os/WrapperInit.java
+++ b/core/java/com/android/internal/os/WrapperInit.java
@@ -183,7 +183,7 @@ private static Runnable wrapperInit(int targetSdkVersion, String[] argv) {
* This is acceptable here as failure will leave the wrapped app with strictly less
* capabilities, which may make it crash, but not exceed its allowances.
*/
- private static void preserveCapabilities() {
+ public static void preserveCapabilities() {
StructCapUserHeader header = new StructCapUserHeader(
OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
StructCapUserData[] data;
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index e556dd4d8243..1054d2fb9b13 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -33,6 +33,7 @@
import android.net.LocalSocket;
import android.os.Parcel;
import android.os.Process;
+import android.os.SystemProperties;
import android.os.Trace;
import android.system.ErrnoException;
import android.system.Os;
@@ -596,6 +597,13 @@ private Runnable handleChildProc(ZygoteArguments parsedArgs, FileDescriptor[] de
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
+
+ // Should not get here.
+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
+ }
return ZygoteInit.zygoteInit(parsedArgs.mTargetSdkVersion,
parsedArgs.mRemainingArgs, null /* classLoader */);
} else {

57
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-10.patch Normal file
View file

@ -0,0 +1,57 @@
From ce6dcc2368fbf817c1c7ae2595b0367750b741dc 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 94e58405ce63..dbd24ef27d26 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -166,7 +166,7 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
WebViewFactory.prepareWebViewInZygote();
}
endPreload(fullPreload);
- warmUpJcaProviders();
+ warmUpJcaProviders(fullPreload);
Log.d(TAG, "end preload");
sPreloadComplete = true;
@@ -230,7 +230,7 @@ private static void preloadTextResources() {
* 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 @@ private static void warmUpJcaProviders() {
+ (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);
}
/**

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-11.patch Normal file
View file

@ -0,0 +1,28 @@
From 3d3d5c4d38a1614ba6e9c8baa517516bdb647223 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:57:24 -0400
Subject: [PATCH] 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 dbd24ef27d26..bf6234b565e1 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -142,9 +142,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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();

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-12.patch Normal file
View file

@ -0,0 +1,28 @@
From 2eda592b79edd89907769fbc9e8ad175523bff0b Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:58:51 -0400
Subject: [PATCH] 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 bf6234b565e1..b00fd9969a54 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -152,9 +152,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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();

26
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-2.patch Normal file
View file

@ -0,0 +1,26 @@
From ffde474ad7e72c72367f16a231bc30ea8ee3311b Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 15:11:59 -0400
Subject: [PATCH] avoid AssetManager errors with exec spawning
This causes harmless errors and wastes time spawning a process that's
not going to succeed.
---
core/jni/android_util_AssetManager.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
index 2b471fec9c8f..7a29db32808d 100644
--- a/core/jni/android_util_AssetManager.cpp
+++ b/core/jni/android_util_AssetManager.cpp
@@ -125,6 +125,10 @@ constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie)
// This is called by zygote (running as user root) as part of preloadResources.
static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
+ // avoid triggering an error with exec-based spawning
+ if (getuid() != 0) {
+ return;
+ }
switch (pid_t pid = fork()) {
case -1:
PLOG(ERROR) << "failed to fork for idmap";

25
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-3.patch Normal file
View file

@ -0,0 +1,25 @@
From aa87e487c42e3f23b42ac151fc6a37f5cb4751e7 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 21 May 2019 23:54:20 -0400
Subject: [PATCH] disable exec spawning when using debugging options
The debugging options are not yet supported probably, so disable exec
spawning when doing debugging.
---
core/java/com/android/internal/os/ZygoteConnection.java | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 1054d2fb9b13..b420385b1de6 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -597,7 +597,8 @@ private Runnable handleChildProc(ZygoteArguments parsedArgs, FileDescriptor[] de
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true) &&
+ (parsedArgs.mRuntimeFlags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);

47
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-4.patch Normal file
View file

@ -0,0 +1,47 @@
From c906fe97221c7f48d5e8a6be508fb85f8df113b1 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:24:21 -0400
Subject: [PATCH] add parameter for avoiding full preload with exec
---
core/java/com/android/internal/os/ExecInit.java | 2 +-
core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 10edd64e0f95..3ba4664ae8cf 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -33,7 +33,7 @@ public static void main(String[] args) {
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
- Trace.TRACE_TAG_DALVIK));
+ Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
String[] runtimeArgs = new String[args.length - 1];
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 7ec8309e47de..e59cb784dc78 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -132,7 +132,7 @@
*/
private static ClassLoader sCachedSystemServerClassLoader = null;
- static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
beginPreload();
@@ -164,6 +164,10 @@ static void preload(TimingsTraceLog bootTimingsTraceLog) {
sPreloadComplete = true;
}
+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ preload(bootTimingsTraceLog, true);
+ }
+
public static void lazyPreload() {
Preconditions.checkState(!sPreloadComplete);
Log.i(TAG, "Lazily preloading resources.");

50
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-5.patch Normal file
View file

@ -0,0 +1,50 @@
From c69c3eecd4f34a932760303e10e3a47798335f7e Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:43:55 -0400
Subject: [PATCH] pass through fullPreload to libcore
---
core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index e59cb784dc78..22e3f549dad5 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -135,7 +135,7 @@
static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
- beginPreload();
+ beginPreload(fullPreload);
bootTimingsTraceLog.traceEnd(); // BeginPreload
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
@@ -157,7 +157,7 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
// for memory sharing purposes.
WebViewFactory.prepareWebViewInZygote();
- endPreload();
+ endPreload(fullPreload);
warmUpJcaProviders();
Log.d(TAG, "end preload");
@@ -175,14 +175,14 @@ public static void lazyPreload() {
preload(new TimingsTraceLog("ZygoteInitTiming_lazy", Trace.TRACE_TAG_DALVIK));
}
- private static void beginPreload() {
+ private static void beginPreload(boolean fullPreload) {
Log.i(TAG, "Calling ZygoteHooks.beginPreload()");
- ZygoteHooks.onBeginPreload();
+ ZygoteHooks.onBeginPreload(fullPreload);
}
- private static void endPreload() {
- ZygoteHooks.onEndPreload();
+ private static void endPreload(boolean fullPreload) {
+ ZygoteHooks.onEndPreload(fullPreload);
Log.i(TAG, "Called ZygoteHooks.endPreload()");
}

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-6.patch Normal file
View file

@ -0,0 +1,28 @@
From b2303adccc82b89f19a6f4af8834443fa7e01b67 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:27 -0400
Subject: [PATCH] disable OpenGL 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 22e3f549dad5..37be8d97987a 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -149,9 +149,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
nativePreloadAppProcessHALs();
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
- maybePreloadGraphicsDriver();
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ if (fullPreload) {
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
+ maybePreloadGraphicsDriver();
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ }
preloadSharedLibraries();
preloadTextResources();
// Ask the WebViewFactory to do any initialization that must run in the zygote process,

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-7.patch Normal file
View file

@ -0,0 +1,28 @@
From 5bb05db6f73992cc345d3662652bea024f3ace3b Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:52 -0400
Subject: [PATCH] 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 37be8d97987a..34c9f8530a72 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -143,9 +143,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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);

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-8.patch Normal file
View file

@ -0,0 +1,28 @@
From 536b4976880224d8518e9208f4e3caacf79e64c9 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:30:59 -0400
Subject: [PATCH] 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 34c9f8530a72..0404ef53ca01 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -137,9 +137,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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

28
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning-9.patch Normal file
View file

@ -0,0 +1,28 @@
From 24802a832b514452df5cea11759be8d33a7b8bc0 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:31:29 -0400
Subject: [PATCH] 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 0404ef53ca01..94e58405ce63 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -160,9 +160,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
}
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");

592
Patches/LineageOS-17.1/android_frameworks_base/0010-Exec_Based_Spawning.patch
View file

@ -1,592 +0,0 @@
From 60e744e11be94212d0bc796d8904da4c61af60e1 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Sat, 14 Mar 2015 18:10:20 -0400
Subject: [PATCH 01/12] add exec-based spawning support
---
.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
.../com/android/internal/os/WrapperInit.java | 2 +-
.../android/internal/os/ZygoteConnection.java | 8 ++
3 files changed, 124 insertions(+), 1 deletion(-)
create mode 100644 core/java/com/android/internal/os/ExecInit.java
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
new file mode 100644
index 00000000000..10edd64e0f9
--- /dev/null
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -0,0 +1,115 @@
+package com.android.internal.os;
+
+import android.os.Trace;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.Slog;
+import android.util.TimingsTraceLog;
+import dalvik.system.VMRuntime;
+
+/**
+ * Startup class for the process.
+ * @hide
+ */
+public class ExecInit {
+ /**
+ * Class not instantiable.
+ */
+ private ExecInit() {
+ }
+
+ /**
+ * The main function called when starting a runtime application.
+ *
+ * The first argument is the target SDK version for the app.
+ *
+ * The remaining arguments are passed to the runtime.
+ *
+ * @param args The command-line arguments.
+ */
+ public static void main(String[] args) {
+ // Parse our mandatory argument.
+ int targetSdkVersion = Integer.parseInt(args[0], 10);
+
+ // Mimic system Zygote preloading.
+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
+ Trace.TRACE_TAG_DALVIK));
+
+ // Launch the application.
+ String[] runtimeArgs = new String[args.length - 1];
+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
+
+ r.run();
+ }
+
+ /**
+ * Executes a runtime application with exec-based spawning.
+ * This method never returns.
+ *
+ * @param niceName The nice name for the application, or null if none.
+ * @param targetSdkVersion The target SDK version for the app.
+ * @param args Arguments for {@link RuntimeInit#main}.
+ */
+ public static void execApplication(String niceName, int targetSdkVersion,
+ String instructionSet, String[] args) {
+ int niceArgs = niceName == null ? 0 : 1;
+ int baseArgs = 5 + niceArgs;
+ String[] argv = new String[baseArgs + args.length];
+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
+ argv[0] = "/system/bin/app_process64";
+ } else {
+ argv[0] = "/system/bin/app_process32";
+ }
+ argv[1] = "/system/bin";
+ argv[2] = "--application";
+ if (niceName != null) {
+ argv[3] = "--nice-name=" + niceName;
+ }
+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ System.arraycopy(args, 0, argv, baseArgs, args.length);
+
+ WrapperInit.preserveCapabilities();
+ try {
+ Os.execv(argv[0], argv);
+ } catch (ErrnoException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * The main function called when an application is started with exec-based spawning.
+ *
+ * When the app starts, the runtime starts {@link RuntimeInit#main}
+ * which calls {@link main} which then calls this method.
+ * So we don't need to call commonInit() here.
+ *
+ * @param targetSdkVersion target SDK version
+ * @param argv arg strings
+ */
+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
+ if (RuntimeInit.DEBUG) {
+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
+ }
+
+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
+ ClassLoader classLoader = null;
+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
+
+ // Install this classloader as the context classloader, too.
+ Thread.currentThread().setContextClassLoader(classLoader);
+
+ // Remove the classpath from the arguments.
+ String removedArgs[] = new String[argv.length - 2];
+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
+ argv = removedArgs;
+ }
+
+ // Perform the same initialization that would happen after the Zygote forks.
+ Zygote.nativePreApplicationInit();
+ return RuntimeInit.applicationInit(targetSdkVersion, argv, classLoader);
+ }
+}
diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
index f0e779694c9..9f41a4136db 100644
--- a/core/java/com/android/internal/os/WrapperInit.java
+++ b/core/java/com/android/internal/os/WrapperInit.java
@@ -183,7 +183,7 @@ public class WrapperInit {
* This is acceptable here as failure will leave the wrapped app with strictly less
* capabilities, which may make it crash, but not exceed its allowances.
*/
- private static void preserveCapabilities() {
+ public static void preserveCapabilities() {
StructCapUserHeader header = new StructCapUserHeader(
OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
StructCapUserData[] data;
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index e556dd4d824..1054d2fb9b1 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -33,6 +33,7 @@ import android.net.Credentials;
import android.net.LocalSocket;
import android.os.Parcel;
import android.os.Process;
+import android.os.SystemProperties;
import android.os.Trace;
import android.system.ErrnoException;
import android.system.Os;
@@ -596,6 +597,13 @@ class ZygoteConnection {
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
+
+ // Should not get here.
+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
+ }
return ZygoteInit.zygoteInit(parsedArgs.mTargetSdkVersion,
parsedArgs.mRemainingArgs, null /* classLoader */);
} else {
--
2.26.0
From 148d6154d771cec6ff736d0f72abf192a5a35975 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 15:11:59 -0400
Subject: [PATCH 02/12] avoid AssetManager errors with exec spawning
This causes harmless errors and wastes time spawning a process that's
not going to succeed.
---
core/jni/android_util_AssetManager.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/core/jni/android_util_AssetManager.cpp b/core/jni/android_util_AssetManager.cpp
index 2b471fec9c8..7a29db32808 100644
--- a/core/jni/android_util_AssetManager.cpp
+++ b/core/jni/android_util_AssetManager.cpp
@@ -125,6 +125,10 @@ constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie)
// This is called by zygote (running as user root) as part of preloadResources.
static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
+ // avoid triggering an error with exec-based spawning
+ if (getuid() != 0) {
+ return;
+ }
switch (pid_t pid = fork()) {
case -1:
PLOG(ERROR) << "failed to fork for idmap";
--
2.26.0
From 2076c38e549f2b4032448159c1478e67a72a96b5 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 21 May 2019 23:54:20 -0400
Subject: [PATCH 03/12] disable exec spawning when using debugging options
The debugging options are not yet supported probably, so disable exec
spawning when doing debugging.
---
core/java/com/android/internal/os/ZygoteConnection.java | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 1054d2fb9b1..b420385b1de 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -597,7 +597,8 @@ class ZygoteConnection {
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true) &&
+ (parsedArgs.mRuntimeFlags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
--
2.26.0
From 909317e350ea4c8874b01e73502dc0c7c78635ab Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:24:21 -0400
Subject: [PATCH 04/12] add parameter for avoiding full preload with exec
---
core/java/com/android/internal/os/ExecInit.java | 2 +-
core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 10edd64e0f9..3ba4664ae8c 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -33,7 +33,7 @@ public class ExecInit {
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
- Trace.TRACE_TAG_DALVIK));
+ Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
String[] runtimeArgs = new String[args.length - 1];
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 7ec8309e47d..e59cb784dc7 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -132,7 +132,7 @@ public class ZygoteInit {
*/
private static ClassLoader sCachedSystemServerClassLoader = null;
- static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
beginPreload();
@@ -164,6 +164,10 @@ public class ZygoteInit {
sPreloadComplete = true;
}
+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ preload(bootTimingsTraceLog, true);
+ }
+
public static void lazyPreload() {
Preconditions.checkState(!sPreloadComplete);
Log.i(TAG, "Lazily preloading resources.");
--
2.26.0
From 4ffeae4cfb2f0acbb8080ab25ca6559c7329b80c Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:43:55 -0400
Subject: [PATCH 05/12] pass through fullPreload to libcore
---
core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index e59cb784dc7..22e3f549dad 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -135,7 +135,7 @@ public class ZygoteInit {
static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
- beginPreload();
+ beginPreload(fullPreload);
bootTimingsTraceLog.traceEnd(); // BeginPreload
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
@@ -157,7 +157,7 @@ public class ZygoteInit {
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
// for memory sharing purposes.
WebViewFactory.prepareWebViewInZygote();
- endPreload();
+ endPreload(fullPreload);
warmUpJcaProviders();
Log.d(TAG, "end preload");
@@ -175,14 +175,14 @@ public class ZygoteInit {
preload(new TimingsTraceLog("ZygoteInitTiming_lazy", Trace.TRACE_TAG_DALVIK));
}
- private static void beginPreload() {
+ private static void beginPreload(boolean fullPreload) {
Log.i(TAG, "Calling ZygoteHooks.beginPreload()");
- ZygoteHooks.onBeginPreload();
+ ZygoteHooks.onBeginPreload(fullPreload);
}
- private static void endPreload() {
- ZygoteHooks.onEndPreload();
+ private static void endPreload(boolean fullPreload) {
+ ZygoteHooks.onEndPreload(fullPreload);
Log.i(TAG, "Called ZygoteHooks.endPreload()");
}
--
2.26.0
From e2166aee853fad1b84fa17936d795535eaef374b Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:27 -0400
Subject: [PATCH 06/12] disable OpenGL 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 22e3f549dad..37be8d97987 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -149,9 +149,11 @@ public class ZygoteInit {
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
nativePreloadAppProcessHALs();
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
- maybePreloadGraphicsDriver();
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ if (fullPreload) {
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
+ maybePreloadGraphicsDriver();
+ 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

6
Patches/LineageOS-17.1/android_libcore/0001-Exec_Preload.patch → Patches/LineageOS-17.1/android_libcore/0001-Exec_Based_Spawning-1.patch
View file

@ -1,4 +1,4 @@
From d087128e25112c35cc9ca2694b503710fc43222d Mon Sep 17 00:00:00 2001
From 29f28b53c0cc85612e66485bc250fc57d82bc622 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:46:38 -0400
Subject: [PATCH] add parameter for avoiding full preload with exec
@ -9,7 +9,7 @@ Subject: [PATCH] add parameter for avoiding full preload with exec
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
index 13769e137..af3b9cfe8 100644
index 13769e137e..af3b9cfe8b 100644
--- a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
+++ b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
@@ -47,7 +47,7 @@ private ZygoteHooks() {
@ -31,7 +31,7 @@ index 13769e137..af3b9cfe8 100644
CacheValue.setStrength(CacheValue.Strength.SOFT);
}
diff --git a/mmodules/core_platform_api/api/platform/current-api.txt b/mmodules/core_platform_api/api/platform/current-api.txt
index b2b81df41..cca689158 100644
index b2b81df415..cca6891580 100644
--- a/mmodules/core_platform_api/api/platform/current-api.txt
+++ b/mmodules/core_platform_api/api/platform/current-api.txt
@@ -854,8 +854,8 @@ package dalvik.system {

4
Patches/LineageOS-17.1/android_libcore/0002-Exec_Based_Spawning.patch → Patches/LineageOS-17.1/android_libcore/0001-Exec_Based_Spawning-2.patch
View file

@ -1,4 +1,4 @@
From ad05afeefb51c74813daf3a99eca2b23fc553c7c Mon Sep 17 00:00:00 2001
From 13a992c716f9b39920a7b37af2f447ced8e45c15 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:47:11 -0400
Subject: [PATCH] disable ICU cache pinning for exec spawning
@ -8,7 +8,7 @@ Subject: [PATCH] disable ICU cache pinning for exec spawning
1 file changed, 15 insertions(+), 11 deletions(-)
diff --git a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
index af3b9cfe8..35e880558 100644
index af3b9cfe8b..35e880558a 100644
--- a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
+++ b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
@@ -48,15 +48,17 @@ private ZygoteHooks() {

26
Patches/LineageOS-18.1/android_build/0003-Exec_Based_Spawning.patch Normal file
View file

@ -0,0 +1,26 @@
From a2b51906dece2ea351b5aa4b66fa8cdefbf37ff6 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Thu, 17 Sep 2020 10:53:00 -0400
Subject: [PATCH] disable enforce RRO for mainline devices
RROs are currently incompatible with exec-based spawning. This also
impacts the wrapper spawning model for the stock OS which is available
by default, making it an upstream bug rather than a missing feature for
exec-based spawning in GrapheneOS.
---
target/product/mainline_system.mk | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/product/mainline_system.mk b/target/product/mainline_system.mk
index 1f22163c32..db2af7d1d2 100644
--- a/target/product/mainline_system.mk
+++ b/target/product/mainline_system.mk
@@ -115,7 +115,7 @@ PRODUCT_COPY_FILES += \
# Enable dynamic partition size
PRODUCT_USE_DYNAMIC_PARTITION_SIZE := true
-PRODUCT_ENFORCE_RRO_TARGETS := *
+#PRODUCT_ENFORCE_RRO_TARGETS := *
PRODUCT_NAME := mainline_system
PRODUCT_BRAND := generic

172
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-1.patch Normal file
View file

@ -0,0 +1,172 @@
From 14c3c1d4cd2df5dde69274e76a91b42fa383e577 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Sat, 14 Mar 2015 18:10:20 -0400
Subject: [PATCH] add exec-based spawning support
---
.../com/android/internal/os/ExecInit.java | 115 ++++++++++++++++++
.../com/android/internal/os/WrapperInit.java | 2 +-
.../android/internal/os/ZygoteConnection.java | 8 ++
3 files changed, 124 insertions(+), 1 deletion(-)
create mode 100644 core/java/com/android/internal/os/ExecInit.java
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
new file mode 100644
index 000000000000..2adcab7fdbe6
--- /dev/null
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -0,0 +1,115 @@
+package com.android.internal.os;
+
+import android.os.Trace;
+import android.system.ErrnoException;
+import android.system.Os;
+import android.util.Slog;
+import android.util.TimingsTraceLog;
+import dalvik.system.VMRuntime;
+
+/**
+ * Startup class for the process.
+ * @hide
+ */
+public class ExecInit {
+ /**
+ * Class not instantiable.
+ */
+ private ExecInit() {
+ }
+
+ /**
+ * The main function called when starting a runtime application.
+ *
+ * The first argument is the target SDK version for the app.
+ *
+ * The remaining arguments are passed to the runtime.
+ *
+ * @param args The command-line arguments.
+ */
+ public static void main(String[] args) {
+ // Parse our mandatory argument.
+ int targetSdkVersion = Integer.parseInt(args[0], 10);
+
+ // Mimic system Zygote preloading.
+ ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
+ Trace.TRACE_TAG_DALVIK));
+
+ // Launch the application.
+ String[] runtimeArgs = new String[args.length - 1];
+ System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ Runnable r = execInit(targetSdkVersion, runtimeArgs);
+
+ r.run();
+ }
+
+ /**
+ * Executes a runtime application with exec-based spawning.
+ * This method never returns.
+ *
+ * @param niceName The nice name for the application, or null if none.
+ * @param targetSdkVersion The target SDK version for the app.
+ * @param args Arguments for {@link RuntimeInit#main}.
+ */
+ public static void execApplication(String niceName, int targetSdkVersion,
+ String instructionSet, String[] args) {
+ int niceArgs = niceName == null ? 0 : 1;
+ int baseArgs = 5 + niceArgs;
+ String[] argv = new String[baseArgs + args.length];
+ if (VMRuntime.is64BitInstructionSet(instructionSet)) {
+ argv[0] = "/system/bin/app_process64";
+ } else {
+ argv[0] = "/system/bin/app_process32";
+ }
+ argv[1] = "/system/bin";
+ argv[2] = "--application";
+ if (niceName != null) {
+ argv[3] = "--nice-name=" + niceName;
+ }
+ argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
+ argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ System.arraycopy(args, 0, argv, baseArgs, args.length);
+
+ WrapperInit.preserveCapabilities();
+ try {
+ Os.execv(argv[0], argv);
+ } catch (ErrnoException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ /**
+ * The main function called when an application is started with exec-based spawning.
+ *
+ * When the app starts, the runtime starts {@link RuntimeInit#main}
+ * which calls {@link main} which then calls this method.
+ * So we don't need to call commonInit() here.
+ *
+ * @param targetSdkVersion target SDK version
+ * @param argv arg strings
+ */
+ private static Runnable execInit(int targetSdkVersion, String[] argv) {
+ if (RuntimeInit.DEBUG) {
+ Slog.d(RuntimeInit.TAG, "RuntimeInit: Starting application from exec");
+ }
+
+ // Check whether the first argument is a "-cp" in argv, and assume the next argument is the
+ // classpath. If found, create a PathClassLoader and use it for applicationInit.
+ ClassLoader classLoader = null;
+ if (argv != null && argv.length > 2 && argv[0].equals("-cp")) {
+ classLoader = ZygoteInit.createPathClassLoader(argv[1], targetSdkVersion);
+
+ // Install this classloader as the context classloader, too.
+ Thread.currentThread().setContextClassLoader(classLoader);
+
+ // Remove the classpath from the arguments.
+ String removedArgs[] = new String[argv.length - 2];
+ System.arraycopy(argv, 2, removedArgs, 0, argv.length - 2);
+ argv = removedArgs;
+ }
+
+ // Perform the same initialization that would happen after the Zygote forks.
+ Zygote.nativePreApplicationInit();
+ return RuntimeInit.applicationInit(targetSdkVersion, /*disabledCompatChanges*/ null, argv, classLoader);
+ }
+}
diff --git a/core/java/com/android/internal/os/WrapperInit.java b/core/java/com/android/internal/os/WrapperInit.java
index 790d7f7ab694..4f7fd039ccd7 100644
--- a/core/java/com/android/internal/os/WrapperInit.java
+++ b/core/java/com/android/internal/os/WrapperInit.java
@@ -185,7 +185,7 @@ private static Runnable wrapperInit(int targetSdkVersion, String[] argv) {
* This is acceptable here as failure will leave the wrapped app with strictly less
* capabilities, which may make it crash, but not exceed its allowances.
*/
- private static void preserveCapabilities() {
+ public static void preserveCapabilities() {
StructCapUserHeader header = new StructCapUserHeader(
OsConstants._LINUX_CAPABILITY_VERSION_3, 0);
StructCapUserData[] data;
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index e6a3029c5b2b..a702e84813fa 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -29,6 +29,7 @@
import android.net.LocalSocket;
import android.os.Parcel;
import android.os.Process;
+import android.os.SystemProperties;
import android.os.Trace;
import android.system.ErrnoException;
import android.system.Os;
@@ -501,6 +502,13 @@ private Runnable handleChildProc(ZygoteArguments parsedArgs,
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
+
+ // Should not get here.
+ throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
+ }
return ZygoteInit.zygoteInit(parsedArgs.mTargetSdkVersion,
parsedArgs.mDisabledCompatChanges,
parsedArgs.mRemainingArgs, null /* classLoader */);

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-10.patch Normal file
View file

@ -0,0 +1,28 @@
From d414dcaa351e7a890d31c1da949421fb435ff168 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:57:24 -0400
Subject: [PATCH] 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 ad3b95ec67fc..0877a1668930 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -135,9 +135,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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();

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-11.patch Normal file
View file

@ -0,0 +1,28 @@
From b4cd877e3a0c2384b8939d5d1e2b6b734bbd13b2 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:58:51 -0400
Subject: [PATCH] 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 0877a1668930..d19868ebd9ca 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -145,9 +145,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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();

207
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-12.patch Normal file
View file

@ -0,0 +1,207 @@
From 98634286bbdffe967a9a03442e5aa324ec26986a Mon Sep 17 00:00:00 2001
From: anupritaisno1 <www.anuprita804@gmail.com>
Date: Fri, 30 Oct 2020 22:26:09 +0000
Subject: [PATCH] pass through runtime flags for exec spawning and implement
them in the child
Signed-off-by: anupritaisno1 <www.anuprita804@gmail.com>
---
.../com/android/internal/os/ExecInit.java | 14 +++-
core/java/com/android/internal/os/Zygote.java | 9 ++
.../android/internal/os/ZygoteConnection.java | 2 +-
core/jni/com_android_internal_os_Zygote.cpp | 83 ++++++++++---------
4 files changed, 66 insertions(+), 42 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 830e5b562a91..749c67abf389 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -31,15 +31,20 @@ public static void main(String[] args) {
// Parse our mandatory argument.
int targetSdkVersion = Integer.parseInt(args[0], 10);
+ // Parse the runtime_flags.
+ int runtimeFlags = Integer.parseInt(args[1], 10);
+
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
- String[] runtimeArgs = new String[args.length - 1];
- System.arraycopy(args, 1, runtimeArgs, 0, runtimeArgs.length);
+ String[] runtimeArgs = new String[args.length - 2];
+ System.arraycopy(args, 2, runtimeArgs, 0, runtimeArgs.length);
Runnable r = execInit(targetSdkVersion, runtimeArgs);
+ Zygote.nativeHandleRuntimeFlags(runtimeFlags);
+
r.run();
}
@@ -52,9 +57,9 @@ public static void main(String[] args) {
* @param args Arguments for {@link RuntimeInit#main}.
*/
public static void execApplication(String niceName, int targetSdkVersion,
- String instructionSet, String[] args) {
+ String instructionSet, int runtimeFlags, String[] args) {
int niceArgs = niceName == null ? 0 : 1;
- int baseArgs = 5 + niceArgs;
+ int baseArgs = 6 + niceArgs;
String[] argv = new String[baseArgs + args.length];
if (VMRuntime.is64BitInstructionSet(instructionSet)) {
argv[0] = "/system/bin/app_process64";
@@ -68,6 +73,7 @@ public static void execApplication(String niceName, int targetSdkVersion,
}
argv[3 + niceArgs] = "com.android.internal.os.ExecInit";
argv[4 + niceArgs] = Integer.toString(targetSdkVersion);
+ argv[5 + niceArgs] = Integer.toString(runtimeFlags);
System.arraycopy(args, 0, argv, baseArgs, args.length);
WrapperInit.preserveCapabilities();
diff --git a/core/java/com/android/internal/os/Zygote.java b/core/java/com/android/internal/os/Zygote.java
index a7d9827855a2..aa874ad98a78 100644
--- a/core/java/com/android/internal/os/Zygote.java
+++ b/core/java/com/android/internal/os/Zygote.java
@@ -1097,4 +1097,13 @@ static void appendQuotedShellArgs(StringBuilder command, String[] args) {
* fully-feature Memory Tagging, rather than the static Tagged Pointers.
*/
public static native boolean nativeSupportsTaggedPointers();
+
+ /**
+ * Used on GrapheneOS to set up runtime flags
+ *
+ * @param runtimeFlags flags to be passed to the native method
+ *
+ * @hide
+ */
+ public static native void nativeHandleRuntimeFlags(int runtimeFlags);
}
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index 9b4664178530..4ae69677f1dd 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -505,7 +505,7 @@ private Runnable handleChildProc(ZygoteArguments parsedArgs,
if (SystemProperties.getBoolean("sys.spawn.exec", true) &&
(parsedArgs.mRuntimeFlags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
- VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);
+ VMRuntime.getCurrentInstructionSet(), parsedArgs.mRuntimeFlags, parsedArgs.mRemainingArgs);
// Should not get here.
throw new IllegalStateException("ExecInit.execApplication unexpectedly returned");
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 9eede83e21e5..cb4bde87916b 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -1599,6 +1599,46 @@ static void BindMountStorageDirs(JNIEnv* env, jobjectArray pkg_data_info_list,
}
}
+static void HandleRuntimeFlags(JNIEnv* env, jint& runtime_flags) {
+ // Set process properties to enable debugging if required.
+ if ((runtime_flags & RuntimeFlags::DEBUG_ENABLE_JDWP) != 0) {
+ EnableDebugger();
+ }
+ if ((runtime_flags & RuntimeFlags::PROFILE_FROM_SHELL) != 0) {
+ // simpleperf needs the process to be dumpable to profile it.
+ if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
+ ALOGE("prctl(PR_SET_DUMPABLE) failed: %s", strerror(errno));
+ RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 1) failed");
+ }
+ }
+
+ HeapTaggingLevel heap_tagging_level;
+ switch (runtime_flags & RuntimeFlags::MEMORY_TAG_LEVEL_MASK) {
+ case RuntimeFlags::MEMORY_TAG_LEVEL_TBI:
+ heap_tagging_level = M_HEAP_TAGGING_LEVEL_TBI;
+ break;
+ default:
+ heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
+ }
+ android_mallopt(M_SET_HEAP_TAGGING_LEVEL, &heap_tagging_level, sizeof(heap_tagging_level));
+ // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
+ runtime_flags &= ~RuntimeFlags::MEMORY_TAG_LEVEL_MASK;
+
+ bool forceEnableGwpAsan = false;
+ switch (runtime_flags & RuntimeFlags::GWP_ASAN_LEVEL_MASK) {
+ default:
+ case RuntimeFlags::GWP_ASAN_LEVEL_NEVER:
+ break;
+ case RuntimeFlags::GWP_ASAN_LEVEL_ALWAYS:
+ forceEnableGwpAsan = true;
+ [[fallthrough]];
+ case RuntimeFlags::GWP_ASAN_LEVEL_LOTTERY:
+ android_mallopt(M_INITIALIZE_GWP_ASAN, &forceEnableGwpAsan, sizeof(forceEnableGwpAsan));
+ }
+ // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
+ runtime_flags &= ~RuntimeFlags::GWP_ASAN_LEVEL_MASK;
+}
+
// Utility routine to specialize a zygote child process.
static void SpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArray gids,
jint runtime_flags, jobjectArray rlimits,
@@ -1716,43 +1756,7 @@ static void SpecializeCommon(JNIEnv* env, uid_t uid, gid_t gid, jintArray gids,
}
}
- // Set process properties to enable debugging if required.
- if ((runtime_flags & RuntimeFlags::DEBUG_ENABLE_JDWP) != 0) {
- EnableDebugger();
- }
- if ((runtime_flags & RuntimeFlags::PROFILE_FROM_SHELL) != 0) {
- // simpleperf needs the process to be dumpable to profile it.
- if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1) {
- ALOGE("prctl(PR_SET_DUMPABLE) failed: %s", strerror(errno));
- RuntimeAbort(env, __LINE__, "prctl(PR_SET_DUMPABLE, 1) failed");
- }
- }
-
- HeapTaggingLevel heap_tagging_level;
- switch (runtime_flags & RuntimeFlags::MEMORY_TAG_LEVEL_MASK) {
- case RuntimeFlags::MEMORY_TAG_LEVEL_TBI:
- heap_tagging_level = M_HEAP_TAGGING_LEVEL_TBI;
- break;
- default:
- heap_tagging_level = M_HEAP_TAGGING_LEVEL_NONE;
- }
- android_mallopt(M_SET_HEAP_TAGGING_LEVEL, &heap_tagging_level, sizeof(heap_tagging_level));
- // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
- runtime_flags &= ~RuntimeFlags::MEMORY_TAG_LEVEL_MASK;
-
- bool forceEnableGwpAsan = false;
- switch (runtime_flags & RuntimeFlags::GWP_ASAN_LEVEL_MASK) {
- default:
- case RuntimeFlags::GWP_ASAN_LEVEL_NEVER:
- break;
- case RuntimeFlags::GWP_ASAN_LEVEL_ALWAYS:
- forceEnableGwpAsan = true;
- [[fallthrough]];
- case RuntimeFlags::GWP_ASAN_LEVEL_LOTTERY:
- android_mallopt(M_INITIALIZE_GWP_ASAN, &forceEnableGwpAsan, sizeof(forceEnableGwpAsan));
- }
- // Now that we've used the flag, clear it so that we don't pass unknown flags to the ART runtime.
- runtime_flags &= ~RuntimeFlags::GWP_ASAN_LEVEL_MASK;
+ HandleRuntimeFlags(env, runtime_flags);
if (NeedsNoRandomizeWorkaround()) {
// Work around ARM kernel ASLR lossage (http://b/5817320).
@@ -2441,6 +2445,10 @@ static jboolean com_android_internal_os_Zygote_nativeSupportsTaggedPointers(JNIE
#endif
}
+static void nativeHandleRuntimeFlagsWrapper(JNIEnv* env, jclass, jint runtime_flags) {
+ HandleRuntimeFlags(env, runtime_flags);
+}
+
static const JNINativeMethod gMethods[] = {
{"nativeForkAndSpecialize",
"(II[II[[IILjava/lang/String;Ljava/lang/String;[I[IZLjava/lang/String;Ljava/lang/"
@@ -2478,6 +2486,7 @@ static const JNINativeMethod gMethods[] = {
(void*)com_android_internal_os_Zygote_nativeParseSigChld},
{"nativeSupportsTaggedPointers", "()Z",
(void*)com_android_internal_os_Zygote_nativeSupportsTaggedPointers},
+ {"nativeHandleRuntimeFlags", "(I)V", (void*)nativeHandleRuntimeFlagsWrapper},
};
int register_com_android_internal_os_Zygote(JNIEnv* env) {

25
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-2.patch Normal file
View file

@ -0,0 +1,25 @@
From ac1943345ec96411ecbac3ce9b15cb371cc03551 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 21 May 2019 23:54:20 -0400
Subject: [PATCH] disable exec spawning when using debugging options
The debugging options are not yet supported probably, so disable exec
spawning when doing debugging.
---
core/java/com/android/internal/os/ZygoteConnection.java | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/core/java/com/android/internal/os/ZygoteConnection.java b/core/java/com/android/internal/os/ZygoteConnection.java
index a702e84813fa..9b4664178530 100644
--- a/core/java/com/android/internal/os/ZygoteConnection.java
+++ b/core/java/com/android/internal/os/ZygoteConnection.java
@@ -502,7 +502,8 @@ private Runnable handleChildProc(ZygoteArguments parsedArgs,
throw new IllegalStateException("WrapperInit.execApplication unexpectedly returned");
} else {
if (!isZygote) {
- if (SystemProperties.getBoolean("sys.spawn.exec", true)) {
+ if (SystemProperties.getBoolean("sys.spawn.exec", true) &&
+ (parsedArgs.mRuntimeFlags & ApplicationInfo.FLAG_DEBUGGABLE) == 0) {
ExecInit.execApplication(parsedArgs.mNiceName, parsedArgs.mTargetSdkVersion,
VMRuntime.getCurrentInstructionSet(), parsedArgs.mRemainingArgs);

47
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-3.patch Normal file
View file

@ -0,0 +1,47 @@
From 1abb8050413dae6ac6c1a082a38fb555c88534b9 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:24:21 -0400
Subject: [PATCH] add parameter for avoiding full preload with exec
---
core/java/com/android/internal/os/ExecInit.java | 2 +-
core/java/com/android/internal/os/ZygoteInit.java | 6 +++++-
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/core/java/com/android/internal/os/ExecInit.java b/core/java/com/android/internal/os/ExecInit.java
index 2adcab7fdbe6..830e5b562a91 100644
--- a/core/java/com/android/internal/os/ExecInit.java
+++ b/core/java/com/android/internal/os/ExecInit.java
@@ -33,7 +33,7 @@ public static void main(String[] args) {
// Mimic system Zygote preloading.
ZygoteInit.preload(new TimingsTraceLog("ExecInitTiming",
- Trace.TRACE_TAG_DALVIK));
+ Trace.TRACE_TAG_DALVIK), false);
// Launch the application.
String[] runtimeArgs = new String[args.length - 1];
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index 2e32730a6ecb..b9460f56d003 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -125,7 +125,7 @@
private static boolean sPreloadComplete;
- static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
beginPreload();
@@ -157,6 +157,10 @@ static void preload(TimingsTraceLog bootTimingsTraceLog) {
sPreloadComplete = true;
}
+ static void preload(TimingsTraceLog bootTimingsTraceLog) {
+ preload(bootTimingsTraceLog, true);
+ }
+
public static void lazyPreload() {
Preconditions.checkState(!sPreloadComplete);
Log.i(TAG, "Lazily preloading resources.");

50
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-4.patch Normal file
View file

@ -0,0 +1,50 @@
From 2e07ab8c242551e6847bffef84546ed5eaf345cf Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:43:55 -0400
Subject: [PATCH] pass through fullPreload to libcore
---
core/java/com/android/internal/os/ZygoteInit.java | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/core/java/com/android/internal/os/ZygoteInit.java b/core/java/com/android/internal/os/ZygoteInit.java
index b9460f56d003..467183355515 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -128,7 +128,7 @@
static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Log.d(TAG, "begin preload");
bootTimingsTraceLog.traceBegin("BeginPreload");
- beginPreload();
+ beginPreload(fullPreload);
bootTimingsTraceLog.traceEnd(); // BeginPreload
bootTimingsTraceLog.traceBegin("PreloadClasses");
preloadClasses();
@@ -150,7 +150,7 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
// Ask the WebViewFactory to do any initialization that must run in the zygote process,
// for memory sharing purposes.
WebViewFactory.prepareWebViewInZygote();
- endPreload();
+ endPreload(fullPreload);
warmUpJcaProviders();
Log.d(TAG, "end preload");
@@ -168,14 +168,14 @@ public static void lazyPreload() {
preload(new TimingsTraceLog("ZygoteInitTiming_lazy", Trace.TRACE_TAG_DALVIK));
}
- private static void beginPreload() {
+ private static void beginPreload(boolean fullPreload) {
Log.i(TAG, "Calling ZygoteHooks.beginPreload()");
- ZygoteHooks.onBeginPreload();
+ ZygoteHooks.onBeginPreload(fullPreload);
}
- private static void endPreload() {
- ZygoteHooks.onEndPreload();
+ private static void endPreload(boolean fullPreload) {
+ ZygoteHooks.onEndPreload(fullPreload);
Log.i(TAG, "Called ZygoteHooks.endPreload()");
}

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-5.patch Normal file
View file

@ -0,0 +1,28 @@
From 0044836677b9be153e04a91dddddcb74d9585643 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:27 -0400
Subject: [PATCH] disable OpenGL 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 467183355515..e93e70443ee6 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -142,9 +142,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadAppProcessHALs");
nativePreloadAppProcessHALs();
Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
- Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
- maybePreloadGraphicsDriver();
- Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ if (fullPreload) {
+ Trace.traceBegin(Trace.TRACE_TAG_DALVIK, "PreloadGraphicsDriver");
+ maybePreloadGraphicsDriver();
+ Trace.traceEnd(Trace.TRACE_TAG_DALVIK);
+ }
preloadSharedLibraries();
preloadTextResources();
// Ask the WebViewFactory to do any initialization that must run in the zygote process,

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-6.patch Normal file
View file

@ -0,0 +1,28 @@
From c561811fad950dce791ef9941753ef95076da4c0 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:28:52 -0400
Subject: [PATCH] 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 e93e70443ee6..2d1f301668a4 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -136,9 +136,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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);

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-7.patch Normal file
View file

@ -0,0 +1,28 @@
From 7a848373efa0bd5b948af7ade19927a8706f9ea2 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:30:59 -0400
Subject: [PATCH] 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 2d1f301668a4..b7246d0ac5ce 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -130,9 +130,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
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

28
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-8.patch Normal file
View file

@ -0,0 +1,28 @@
From 89646bdeb19463424158544c6942224320e9e180 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Tue, 14 May 2019 14:31:29 -0400
Subject: [PATCH] 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 b7246d0ac5ce..04a323254c72 100644
--- a/core/java/com/android/internal/os/ZygoteInit.java
+++ b/core/java/com/android/internal/os/ZygoteInit.java
@@ -153,9 +153,11 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
}
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");

57
Patches/LineageOS-18.1/android_frameworks_base/0018-Exec_Based_Spawning-9.patch Normal file
View file

@ -0,0 +1,57 @@
From 2a70bbac4a8342175971498084494845b4f24546 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 @@ static void preload(TimingsTraceLog bootTimingsTraceLog, boolean fullPreload) {
WebViewFactory.prepareWebViewInZygote();
}
endPreload(fullPreload);
- warmUpJcaProviders();
+ warmUpJcaProviders(fullPreload);
Log.d(TAG, "end preload");
sPreloadComplete = true;
@@ -229,7 +229,7 @@ private static void preloadTextResources() {
* 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 @@ private static void warmUpJcaProviders() {
+ (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);
}
/**

47
Patches/LineageOS-18.1/android_libcore/0003-Exec_Based_Spawning-1.patch Normal file
View file

@ -0,0 +1,47 @@
From 4c2635390c10512b0c79ee1f3658a25d6b671ca0 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:46:38 -0400
Subject: [PATCH] add parameter for avoiding full preload with exec
---
dalvik/src/main/java/dalvik/system/ZygoteHooks.java | 4 ++--
mmodules/core_platform_api/api/platform/current-api.txt | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
index 7e8fe3651e..de5a056143 100644
--- a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
+++ b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
@@ -48,7 +48,7 @@ private ZygoteHooks() {
* Called when the zygote begins preloading classes and data.
*/
@libcore.api.CorePlatformApi
- public static void onBeginPreload() {
+ public static void onBeginPreload(boolean fullPreload) {
// Pin ICU data in memory from this point that would normally be held by soft references.
// Without this, any references created immediately below or during class preloading
// would be collected when the Zygote GC runs in gcAndFinalize().
@@ -71,7 +71,7 @@ public static void onBeginPreload() {
* Called when the zygote has completed preloading classes and data.
*/
@libcore.api.CorePlatformApi
- public static void onEndPreload() {
+ public static void onEndPreload(boolean fullPreload) {
// All cache references created by ICU from this point will be soft.
CacheValue.setStrength(CacheValue.Strength.SOFT);
diff --git a/mmodules/core_platform_api/api/platform/current-api.txt b/mmodules/core_platform_api/api/platform/current-api.txt
index 15a0a48d8c..ac810f45fa 100644
--- a/mmodules/core_platform_api/api/platform/current-api.txt
+++ b/mmodules/core_platform_api/api/platform/current-api.txt
@@ -745,8 +745,8 @@ package dalvik.system {
public final class ZygoteHooks {
method public static void gcAndFinalize();
- method public static void onBeginPreload();
- method public static void onEndPreload();
+ method public static void onBeginPreload(boolean);
+ method public static void onEndPreload(boolean);
method public static void postForkChild(int, boolean, boolean, String);
method public static void postForkCommon();
method public static void postForkSystemServer(int);

53
Patches/LineageOS-18.1/android_libcore/0003-Exec_Based_Spawning-2.patch Normal file
View file

@ -0,0 +1,53 @@
From add34a4bc6aa69f21f012d62215b5af500bea551 Mon Sep 17 00:00:00 2001
From: Daniel Micay <danielmicay@gmail.com>
Date: Wed, 11 Sep 2019 06:47:11 -0400
Subject: [PATCH] disable ICU cache pinning for exec spawning
---
.../main/java/dalvik/system/ZygoteHooks.java | 26 +++++++++++--------
1 file changed, 15 insertions(+), 11 deletions(-)
diff --git a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
index de5a056143..e77cec2517 100644
--- a/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
+++ b/dalvik/src/main/java/dalvik/system/ZygoteHooks.java
@@ -49,15 +49,17 @@ private ZygoteHooks() {
*/
@libcore.api.CorePlatformApi
public static void onBeginPreload(boolean fullPreload) {
- // Pin ICU data in memory from this point that would normally be held by soft references.
- // Without this, any references created immediately below or during class preloading
- // would be collected when the Zygote GC runs in gcAndFinalize().
- CacheValue.setStrength(CacheValue.Strength.STRONG);
-
- // Explicitly exercise code to cache data apps are likely to need.
- ULocale[] localesToPin = { ULocale.ROOT, ULocale.US, ULocale.getDefault() };
- for (ULocale uLocale : localesToPin) {
- new DecimalFormatSymbols(uLocale);
+ if (fullPreload) {
+ // Pin ICU data in memory from this point that would normally be held by soft references.
+ // Without this, any references created immediately below or during class preloading
+ // would be collected when the Zygote GC runs in gcAndFinalize().
+ CacheValue.setStrength(CacheValue.Strength.STRONG);
+
+ // Explicitly exercise code to cache data apps are likely to need.
+ ULocale[] localesToPin = { ULocale.ROOT, ULocale.US, ULocale.getDefault() };
+ for (ULocale uLocale : localesToPin) {
+ new DecimalFormatSymbols(uLocale);
+ }
}
// Framework's LocalLog is used during app start-up. It indirectly uses the current ICU time
@@ -72,8 +74,10 @@ public static void onBeginPreload(boolean fullPreload) {
*/
@libcore.api.CorePlatformApi
public static void onEndPreload(boolean fullPreload) {
- // All cache references created by ICU from this point will be soft.
- CacheValue.setStrength(CacheValue.Strength.SOFT);
+ if (fullPreload) {
+ // All cache references created by ICU from this point will be soft.
+ CacheValue.setStrength(CacheValue.Strength.SOFT);
+ }
// Clone standard descriptors as originals closed / rebound during zygote post fork.
FileDescriptor.in.cloneForFork();

13
Scripts/LineageOS-16.0/Patch.sh
View file

@ -119,7 +119,18 @@ if enterAndClear "frameworks/base"; then
applyPatch "$DOS_PATCHES/android_frameworks_base/0007-Always_Restict_Serial.patch"; #Always restrict access to Build.SERIAL (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0008-Browser_No_Location.patch"; #Don't grant location permission to system browsers (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0009-SystemUI_No_Permission_Review.patch"; #Allow SystemUI to directly manage Bluetooth/WiFi (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning.patch"; fi; #Add exec-based spawning support (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-1.patch"; #Add exec-based spawning support (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-2.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-3.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-4.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-5.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-6.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-7.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-8.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-9.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-10.patch";
fi;
applyPatch "$DOS_PATCHES_COMMON/android_frameworks_base/0003-SUPL_No_IMSI.patch"; #Don't send IMSI to SUPL (MSe1969)
applyPatch "$DOS_PATCHES_COMMON/android_frameworks_base/0004-Fingerprint_Lockout.patch"; #Enable fingerprint lockout after three failed attempts (GrapheneOS)
applyPatch "$DOS_PATCHES_COMMON/android_frameworks_base/0005-User_Logout.patch"; #Allow user logout (GrapheneOS)

21
Scripts/LineageOS-17.1/Patch.sh
View file

@ -113,7 +113,20 @@ if enterAndClear "frameworks/base"; then
applyPatch "$DOS_PATCHES/android_frameworks_base/0007-Always_Restict_Serial.patch"; #Always restrict access to Build.SERIAL (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0008-Browser_No_Location.patch"; #Don't grant location permission to system browsers (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0009-SystemUI_No_Permission_Review.patch"; #Allow SystemUI to directly manage Bluetooth/WiFi (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning.patch"; fi; #add exec-based spawning support (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-1.patch"; #Add exec-based spawning support (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-2.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-3.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-4.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-5.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-6.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-7.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-8.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-9.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-10.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-11.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0010-Exec_Based_Spawning-12.patch";
fi;
applyPatch "$DOS_PATCHES/android_frameworks_base/0003-SUPL_No_IMSI.patch"; #Don't send IMSI to SUPL (MSe1969)
applyPatch "$DOS_PATCHES/android_frameworks_base/0004-Fingerprint_Lockout.patch"; #Enable fingerprint lockout after three failed attempts (GrapheneOS)
applyPatch "$DOS_PATCHES_COMMON/android_frameworks_base/0005-User_Logout.patch"; #Allow user logout (GrapheneOS)
@ -203,8 +216,10 @@ applyPatch "$DOS_PATCHES/android_hardware_qcom_audio/0001-Unused-sm8150.patch";
fi;
if enterAndClear "libcore"; then
if [ "$DOS_GRAPHENE_EXEC" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0001-Exec_Preload.patch"; fi; #Add exec-based spawning support (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0002-Exec_Based_Spawning.patch"; fi;
if [ "$DOS_GRAPHENE_EXEC" = true ]; then
applyPatch "$DOS_PATCHES/android_libcore/0001-Exec_Based_Spawning-1.patch"; #Add exec-based spawning support (GrapheneOS)
applyPatch "$DOS_PATCHES/android_libcore/0001-Exec_Based_Spawning-2.patch";
fi;
if [ "$DOS_GRAPHENE_NETWORK_PERM" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0003-Network_Permission.patch"; fi; #Expose the NETWORK permission (GrapheneOS)
if [ "$DOS_GRAPHENE_CONSTIFY" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0004-constify_JNINativeMethod.patch"; fi; #Constify JNINativeMethod tables (GrapheneOS)
fi;

19
Scripts/LineageOS-18.1/Patch.sh
View file

@ -67,6 +67,7 @@ if enterAndClear "build/make"; then
git revert --no-edit def3f14af17ae92192d2cc7d22349cabfa906fd6; #Re-enable the downgrade check
applyPatch "$DOS_PATCHES/android_build/0001-Enable_fwrapv.patch"; #Use -fwrapv at a minimum (GrapheneOS)
applyPatch "$DOS_PATCHES/android_build/0002-OTA_Keys.patch"; #Add correct keys to recovery for OTA verification
if [ "$DOS_GRAPHENE_EXEC" = true ]; then applyPatch "$DOS_PATCHES/android_build/0003-Exec_Based_Spawning.patch"; fi; #Add exec-based spawning support (GrapheneOS)
sed -i '75i$(my_res_package): PRIVATE_AAPT_FLAGS += --auto-add-overlay' core/aapt2.mk; #Enable auto-add-overlay for packages, this allows the vendor overlay to easily work across all branches.
if [ "$DOS_SILENCE_INCLUDED" = true ]; then sed -i 's/messaging/Silence/' target/product/aosp_base_telephony.mk target/product/aosp_product.mk; fi; #Replace the Messaging app with Silence
awk -i inplace '!/updatable_apex.mk/' target/product/mainline_system.mk; #Disable APEX
@ -115,6 +116,20 @@ applyPatch "$DOS_PATCHES/android_frameworks_base/0014-Automatic_Reboot.patch"; #
applyPatch "$DOS_PATCHES/android_frameworks_base/0015-Bluetooth_Timeout.patch"; #Timeout for Bluetooth (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0016-WiFi_Timeout.patch"; #Timeout for Wi-Fi (GrapheneOS)
if [ "$DOS_GRAPHENE_CONSTIFY" = true ]; then applyPatch "$DOS_PATCHES/android_frameworks_base/0017-constify_JNINativeMethod.patch"; fi; #Constify JNINativeMethod tables (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-1.patch"; #Add exec-based spawning support (GrapheneOS)
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-2.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-3.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-4.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-5.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-6.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-7.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-8.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-9.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-10.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-11.patch";
applyPatch "$DOS_PATCHES/android_frameworks_base/0018-Exec_Based_Spawning-12.patch";
fi;
applyPatch "$DOS_PATCHES_COMMON/android_frameworks_base/0006-Do-not-throw-in-setAppOnInterfaceLocked.patch"; #Fix random reboots on broken kernels when an app has data restricted XXX: ugly
if [ "$DOS_MICROG_INCLUDED" = "FULL" ]; then applyPatch "$DOS_PATCHES/android_frameworks_base/0002-Signature_Spoofing.patch"; fi; #Allow packages to spoof their signature (microG)
if [ "$DOS_MICROG_INCLUDED" = "FULL" ]; then applyPatch "$DOS_PATCHES/android_frameworks_base/0003-Harden_Sig_Spoofing.patch"; fi; #Restrict signature spoofing to system apps signed with the platform key
@ -200,6 +215,10 @@ fi;
if enterAndClear "libcore"; then
if [ "$DOS_GRAPHENE_NETWORK_PERM" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0001-Network_Permission.patch"; fi; #Expose the NETWORK permission (GrapheneOS)
if [ "$DOS_GRAPHENE_CONSTIFY" = true ]; then applyPatch "$DOS_PATCHES/android_libcore/0002-constify_JNINativeMethod.patch"; fi; #Constify JNINativeMethod tables (GrapheneOS)
if [ "$DOS_GRAPHENE_EXEC" = true ]; then
applyPatch "$DOS_PATCHES/android_libcore/0003-Exec_Based_Spawning-1.patch"; #Add exec-based spawning support (GrapheneOS)
applyPatch "$DOS_PATCHES/android_libcore/0003-Exec_Based_Spawning-2.patch";
fi;
fi;
if enterAndClear "lineage-sdk"; then