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am 128b3c86: Merge "Handle load from APK correctly for shared relro" into mnc-dev

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* commit '128b3c86c6f664b5a14c40d3d90c2f8172ea11b6':
  Handle load from APK correctly for shared relro
This commit is contained in:
Simon Baldwin
2015-05-18 15:07:52 +00:00
committed by Android Git Automerger
parent 4a44ad0a2e 128b3c86c6
commit d7f3a3d2bd
1 changed files with 66 additions and 6 deletions
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72
core/java/android/webkit/WebViewFactory.java
View File

@@ -40,7 +40,10 @@ import com.android.server.LocalServices;
import dalvik.system.VMRuntime;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* Top level factory, used creating all the main WebView implementation classes.
@@ -323,15 +326,30 @@ public final class WebViewFactory {
long newVmSize = 0L;
for (String path : nativeLibs) {
if (path == null || TextUtils.isEmpty(path)) continue;
if (DEBUG) Log.d(LOGTAG, "Checking file size of " + path);
if (path == null) continue;
File f = new File(path);
if (f.exists()) {
long length = f.length();
if (length > newVmSize) {
newVmSize = length;
newVmSize = Math.max(newVmSize, f.length());
continue;
}
if (path.contains("!")) {
String[] split = TextUtils.split(path, "!");
if (split.length == 2) {
try {
ZipFile z = new ZipFile(split[0]);
ZipEntry e = z.getEntry(split[1]);
if (e != null && e.getMethod() == ZipEntry.STORED) {
newVmSize = Math.max(newVmSize, e.getSize());
continue;
}
}
catch (IOException e) {
Log.e(LOGTAG, "error reading APK file " + split[0] + ", ", e);
}
}
}
Log.e(LOGTAG, "error sizing load for " + path);
}
if (DEBUG) {
@@ -354,6 +372,27 @@ public final class WebViewFactory {
prepareWebViewInSystemServer(nativeLibs);
}
// throws MissingWebViewPackageException
private static String getLoadFromApkPath(String apkPath,
String[] abiList,
String nativeLibFileName) {
// Search the APK for a native library conforming to a listed ABI.
try {
ZipFile z = new ZipFile(apkPath);
for (String abi : abiList) {
final String entry = "lib/" + abi + "/" + nativeLibFileName;
ZipEntry e = z.getEntry(entry);
if (e != null && e.getMethod() == ZipEntry.STORED) {
// Return a path formatted for dlopen() load from APK.
return apkPath + "!" + entry;
}
}
} catch (IOException e) {
throw new MissingWebViewPackageException(e);
}
return "";
}
// throws MissingWebViewPackageException
private static String[] getWebViewNativeLibraryPaths() {
ApplicationInfo ai = getWebViewApplicationInfo();
@@ -382,8 +421,29 @@ public final class WebViewFactory {
path32 = ai.nativeLibraryDir;
path64 = "";
}
if (!TextUtils.isEmpty(path32)) path32 += "/" + NATIVE_LIB_FILE_NAME;
if (!TextUtils.isEmpty(path64)) path64 += "/" + NATIVE_LIB_FILE_NAME;
// Form the full paths to the extracted native libraries.
// If libraries were not extracted, try load from APK paths instead.
if (!TextUtils.isEmpty(path32)) {
path32 += "/" + NATIVE_LIB_FILE_NAME;
File f = new File(path32);
if (!f.exists()) {
path32 = getLoadFromApkPath(ai.sourceDir,
Build.SUPPORTED_32_BIT_ABIS,
NATIVE_LIB_FILE_NAME);
}
}
if (!TextUtils.isEmpty(path64)) {
path64 += "/" + NATIVE_LIB_FILE_NAME;
File f = new File(path64);
if (!f.exists()) {
path64 = getLoadFromApkPath(ai.sourceDir,
Build.SUPPORTED_64_BIT_ABIS,
NATIVE_LIB_FILE_NAME);
}
}
if (DEBUG) Log.v(LOGTAG, "Native 32-bit lib: " + path32 + ", 64-bit lib: " + path64);
return new String[] { path32, path64 };
}