Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.webkit; |
| 18 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 19 | import android.annotation.NonNull; |
| 20 | import android.annotation.Nullable; |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 21 | import android.app.ActivityManagerInternal; |
| 22 | import android.content.pm.ApplicationInfo; |
| 23 | import android.content.pm.PackageInfo; |
| 24 | import android.os.Build; |
| 25 | import android.os.Process; |
| 26 | import android.os.RemoteException; |
| 27 | import android.os.SystemProperties; |
| 28 | import android.text.TextUtils; |
| 29 | import android.util.Log; |
| 30 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 31 | import com.android.internal.annotations.VisibleForTesting; |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 32 | import com.android.server.LocalServices; |
| 33 | |
| 34 | import dalvik.system.VMRuntime; |
| 35 | |
| 36 | import java.io.File; |
| 37 | import java.io.IOException; |
| 38 | import java.util.Arrays; |
| 39 | import java.util.zip.ZipEntry; |
| 40 | import java.util.zip.ZipFile; |
| 41 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 42 | /** |
| 43 | * @hide |
| 44 | */ |
| 45 | @VisibleForTesting |
| 46 | public class WebViewLibraryLoader { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 47 | private static final String LOGTAG = WebViewLibraryLoader.class.getSimpleName(); |
| 48 | |
| 49 | private static final String CHROMIUM_WEBVIEW_NATIVE_RELRO_32 = |
| 50 | "/data/misc/shared_relro/libwebviewchromium32.relro"; |
| 51 | private static final String CHROMIUM_WEBVIEW_NATIVE_RELRO_64 = |
| 52 | "/data/misc/shared_relro/libwebviewchromium64.relro"; |
| 53 | private static final long CHROMIUM_WEBVIEW_DEFAULT_VMSIZE_BYTES = 100 * 1024 * 1024; |
| 54 | |
| 55 | private static final boolean DEBUG = false; |
| 56 | |
| 57 | private static boolean sAddressSpaceReserved = false; |
| 58 | |
| 59 | /** |
| 60 | * Private class for running the actual relro creation in an unprivileged child process. |
| 61 | * RelroFileCreator is a static class (without access to the outer class) to avoid accidentally |
| 62 | * using any static members from the outer class. Those members will in reality differ between |
| 63 | * the child process in which RelroFileCreator operates, and the app process in which the static |
| 64 | * members of this class are used. |
| 65 | */ |
| 66 | private static class RelroFileCreator { |
| 67 | // Called in an unprivileged child process to create the relro file. |
| 68 | public static void main(String[] args) { |
| 69 | boolean result = false; |
| 70 | boolean is64Bit = VMRuntime.getRuntime().is64Bit(); |
| 71 | try { |
Gustav Sennton | ae498f2 | 2017-10-05 15:34:13 +0100 | [diff] [blame] | 72 | if (args.length != 1 || args[0] == null) { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 73 | Log.e(LOGTAG, "Invalid RelroFileCreator args: " + Arrays.toString(args)); |
| 74 | return; |
| 75 | } |
Gustav Sennton | ae498f2 | 2017-10-05 15:34:13 +0100 | [diff] [blame] | 76 | Log.v(LOGTAG, "RelroFileCreator (64bit = " + is64Bit + "), lib: " + args[0]); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 77 | if (!sAddressSpaceReserved) { |
| 78 | Log.e(LOGTAG, "can't create relro file; address space not reserved"); |
| 79 | return; |
| 80 | } |
Gustav Sennton | ae498f2 | 2017-10-05 15:34:13 +0100 | [diff] [blame] | 81 | result = nativeCreateRelroFile(args[0] /* path */, |
| 82 | is64Bit ? CHROMIUM_WEBVIEW_NATIVE_RELRO_64 : |
| 83 | CHROMIUM_WEBVIEW_NATIVE_RELRO_32); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 84 | if (result && DEBUG) Log.v(LOGTAG, "created relro file"); |
| 85 | } finally { |
| 86 | // We must do our best to always notify the update service, even if something fails. |
| 87 | try { |
Torne (Richard Coles) | 29675b2 | 2017-10-04 11:29:58 -0400 | [diff] [blame] | 88 | WebViewFactory.getUpdateServiceUnchecked().notifyRelroCreationCompleted(); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 89 | } catch (RemoteException e) { |
| 90 | Log.e(LOGTAG, "error notifying update service", e); |
| 91 | } |
| 92 | |
| 93 | if (!result) Log.e(LOGTAG, "failed to create relro file"); |
| 94 | |
| 95 | // Must explicitly exit or else this process will just sit around after we return. |
| 96 | System.exit(0); |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Create a single relro file by invoking an isolated process that to do the actual work. |
| 103 | */ |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 104 | static void createRelroFile(final boolean is64Bit, @NonNull WebViewNativeLibrary nativeLib) { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 105 | final String abi = |
| 106 | is64Bit ? Build.SUPPORTED_64_BIT_ABIS[0] : Build.SUPPORTED_32_BIT_ABIS[0]; |
| 107 | |
| 108 | // crashHandler is invoked by the ActivityManagerService when the isolated process crashes. |
| 109 | Runnable crashHandler = new Runnable() { |
| 110 | @Override |
| 111 | public void run() { |
| 112 | try { |
| 113 | Log.e(LOGTAG, "relro file creator for " + abi + " crashed. Proceeding without"); |
| 114 | WebViewFactory.getUpdateService().notifyRelroCreationCompleted(); |
| 115 | } catch (RemoteException e) { |
| 116 | Log.e(LOGTAG, "Cannot reach WebViewUpdateService. " + e.getMessage()); |
| 117 | } |
| 118 | } |
| 119 | }; |
| 120 | |
| 121 | try { |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 122 | if (nativeLib == null || nativeLib.path == null) { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 123 | throw new IllegalArgumentException( |
| 124 | "Native library paths to the WebView RelRo process must not be null!"); |
| 125 | } |
Sudheer Shanka | f669010 | 2017-10-16 10:20:32 -0700 | [diff] [blame] | 126 | boolean success = LocalServices.getService(ActivityManagerInternal.class) |
| 127 | .startIsolatedProcess( |
| 128 | RelroFileCreator.class.getName(), new String[] { nativeLib.path }, |
| 129 | "WebViewLoader-" + abi, abi, Process.SHARED_RELRO_UID, crashHandler); |
| 130 | if (!success) throw new Exception("Failed to start the relro file creator process"); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 131 | } catch (Throwable t) { |
| 132 | // Log and discard errors as we must not crash the system server. |
| 133 | Log.e(LOGTAG, "error starting relro file creator for abi " + abi, t); |
| 134 | crashHandler.run(); |
| 135 | } |
| 136 | } |
| 137 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 138 | /** |
| 139 | * Perform preparations needed to allow loading WebView from an application. This method should |
| 140 | * be called whenever we change WebView provider. |
| 141 | * @return the number of relro processes started. |
| 142 | */ |
Gustav Sennton | 0e541ef | 2017-10-24 14:28:26 +0100 | [diff] [blame] | 143 | static int prepareNativeLibraries(PackageInfo webviewPackageInfo) |
| 144 | throws WebViewFactory.MissingWebViewPackageException { |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 145 | WebViewNativeLibrary nativeLib32bit = |
| 146 | getWebViewNativeLibrary(webviewPackageInfo, false /* is64bit */); |
| 147 | WebViewNativeLibrary nativeLib64bit = |
| 148 | getWebViewNativeLibrary(webviewPackageInfo, true /* is64bit */); |
| 149 | updateWebViewZygoteVmSize(nativeLib32bit, nativeLib64bit); |
| 150 | |
| 151 | return createRelros(nativeLib32bit, nativeLib64bit); |
| 152 | } |
| 153 | |
| 154 | /** |
| 155 | * @return the number of relro processes started. |
| 156 | */ |
| 157 | private static int createRelros(@Nullable WebViewNativeLibrary nativeLib32bit, |
| 158 | @Nullable WebViewNativeLibrary nativeLib64bit) { |
Gustav Sennton | 0e541ef | 2017-10-24 14:28:26 +0100 | [diff] [blame] | 159 | if (DEBUG) Log.v(LOGTAG, "creating relro files"); |
| 160 | int numRelros = 0; |
| 161 | |
Gustav Sennton | 0e541ef | 2017-10-24 14:28:26 +0100 | [diff] [blame] | 162 | if (Build.SUPPORTED_32_BIT_ABIS.length > 0) { |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 163 | if (nativeLib32bit == null) { |
| 164 | Log.e(LOGTAG, "No 32-bit WebView library path, skipping relro creation."); |
| 165 | } else { |
| 166 | if (DEBUG) Log.v(LOGTAG, "Create 32 bit relro"); |
| 167 | createRelroFile(false /* is64Bit */, nativeLib32bit); |
| 168 | numRelros++; |
| 169 | } |
Gustav Sennton | 0e541ef | 2017-10-24 14:28:26 +0100 | [diff] [blame] | 170 | } |
| 171 | |
| 172 | if (Build.SUPPORTED_64_BIT_ABIS.length > 0) { |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 173 | if (nativeLib64bit == null) { |
| 174 | Log.e(LOGTAG, "No 64-bit WebView library path, skipping relro creation."); |
| 175 | } else { |
| 176 | if (DEBUG) Log.v(LOGTAG, "Create 64 bit relro"); |
| 177 | createRelroFile(true /* is64Bit */, nativeLib64bit); |
| 178 | numRelros++; |
| 179 | } |
Gustav Sennton | 0e541ef | 2017-10-24 14:28:26 +0100 | [diff] [blame] | 180 | } |
| 181 | return numRelros; |
| 182 | } |
| 183 | |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 184 | /** |
| 185 | * |
| 186 | * @return the native WebView libraries in the new WebView APK. |
| 187 | */ |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 188 | private static void updateWebViewZygoteVmSize( |
| 189 | @Nullable WebViewNativeLibrary nativeLib32bit, |
| 190 | @Nullable WebViewNativeLibrary nativeLib64bit) |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 191 | throws WebViewFactory.MissingWebViewPackageException { |
| 192 | // Find the native libraries of the new WebView package, to change the size of the |
| 193 | // memory region in the Zygote reserved for the library. |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 194 | long newVmSize = 0L; |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 195 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 196 | if (nativeLib32bit != null) newVmSize = Math.max(newVmSize, nativeLib32bit.size); |
| 197 | if (nativeLib64bit != null) newVmSize = Math.max(newVmSize, nativeLib64bit.size); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 198 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 199 | if (DEBUG) { |
| 200 | Log.v(LOGTAG, "Based on library size, need " + newVmSize |
| 201 | + " bytes of address space."); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 202 | } |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 203 | // The required memory can be larger than the file on disk (due to .bss), and an |
| 204 | // upgraded version of the library will likely be larger, so always attempt to |
| 205 | // reserve twice as much as we think to allow for the library to grow during this |
| 206 | // boot cycle. |
| 207 | newVmSize = Math.max(2 * newVmSize, CHROMIUM_WEBVIEW_DEFAULT_VMSIZE_BYTES); |
| 208 | Log.d(LOGTAG, "Setting new address space to " + newVmSize); |
| 209 | setWebViewZygoteVmSize(newVmSize); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Reserve space for the native library to be loaded into. |
| 214 | */ |
| 215 | static void reserveAddressSpaceInZygote() { |
| 216 | System.loadLibrary("webviewchromium_loader"); |
| 217 | long addressSpaceToReserve = |
| 218 | SystemProperties.getLong(WebViewFactory.CHROMIUM_WEBVIEW_VMSIZE_SIZE_PROPERTY, |
| 219 | CHROMIUM_WEBVIEW_DEFAULT_VMSIZE_BYTES); |
| 220 | sAddressSpaceReserved = nativeReserveAddressSpace(addressSpaceToReserve); |
| 221 | |
| 222 | if (sAddressSpaceReserved) { |
| 223 | if (DEBUG) { |
| 224 | Log.v(LOGTAG, "address space reserved: " + addressSpaceToReserve + " bytes"); |
| 225 | } |
| 226 | } else { |
| 227 | Log.e(LOGTAG, "reserving " + addressSpaceToReserve + " bytes of address space failed"); |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * Load WebView's native library into the current process. |
Nate Fischer | 7051dd1 | 2017-10-26 14:51:25 -0700 | [diff] [blame] | 233 | * |
| 234 | * <p class="note"><b>Note:</b> Assumes that we have waited for relro creation. |
| 235 | * |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 236 | * @param clazzLoader class loader used to find the linker namespace to load the library into. |
Torne (Richard Coles) | ec572f6 | 2018-02-21 15:55:24 -0500 | [diff] [blame] | 237 | * @param libraryFileName the filename of the library to load. |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 238 | */ |
Torne (Richard Coles) | ec572f6 | 2018-02-21 15:55:24 -0500 | [diff] [blame] | 239 | public static int loadNativeLibrary(ClassLoader clazzLoader, String libraryFileName) { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 240 | if (!sAddressSpaceReserved) { |
| 241 | Log.e(LOGTAG, "can't load with relro file; address space not reserved"); |
| 242 | return WebViewFactory.LIBLOAD_ADDRESS_SPACE_NOT_RESERVED; |
| 243 | } |
| 244 | |
Gustav Sennton | ae498f2 | 2017-10-05 15:34:13 +0100 | [diff] [blame] | 245 | String relroPath = VMRuntime.getRuntime().is64Bit() ? CHROMIUM_WEBVIEW_NATIVE_RELRO_64 : |
| 246 | CHROMIUM_WEBVIEW_NATIVE_RELRO_32; |
| 247 | int result = nativeLoadWithRelroFile(libraryFileName, relroPath, clazzLoader); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 248 | if (result != WebViewFactory.LIBLOAD_SUCCESS) { |
| 249 | Log.w(LOGTAG, "failed to load with relro file, proceeding without"); |
| 250 | } else if (DEBUG) { |
| 251 | Log.v(LOGTAG, "loaded with relro file"); |
| 252 | } |
| 253 | return result; |
| 254 | } |
| 255 | |
| 256 | /** |
| 257 | * Fetch WebView's native library paths from {@param packageInfo}. |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 258 | * @hide |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 259 | */ |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 260 | @Nullable |
| 261 | @VisibleForTesting |
| 262 | public static WebViewNativeLibrary getWebViewNativeLibrary(PackageInfo packageInfo, |
| 263 | boolean is64bit) throws WebViewFactory.MissingWebViewPackageException { |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 264 | ApplicationInfo ai = packageInfo.applicationInfo; |
| 265 | final String nativeLibFileName = WebViewFactory.getWebViewLibrary(ai); |
| 266 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 267 | String dir = getWebViewNativeLibraryDirectory(ai, is64bit /* 64bit */); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 268 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 269 | WebViewNativeLibrary lib = findNativeLibrary(ai, nativeLibFileName, |
| 270 | is64bit ? Build.SUPPORTED_64_BIT_ABIS : Build.SUPPORTED_32_BIT_ABIS, dir); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 271 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 272 | if (DEBUG) { |
| 273 | Log.v(LOGTAG, String.format("Native %d-bit lib: %s", is64bit ? 64 : 32, lib.path)); |
| 274 | } |
| 275 | return lib; |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 276 | } |
| 277 | |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 278 | /** |
| 279 | * @return the directory of the native WebView library with bitness {@param is64bit}. |
| 280 | * @hide |
| 281 | */ |
| 282 | @VisibleForTesting |
| 283 | public static String getWebViewNativeLibraryDirectory(ApplicationInfo ai, boolean is64bit) { |
| 284 | // Primary arch has the same bitness as the library we are looking for. |
| 285 | if (is64bit == VMRuntime.is64BitAbi(ai.primaryCpuAbi)) return ai.nativeLibraryDir; |
| 286 | |
| 287 | // Secondary arch has the same bitness as the library we are looking for. |
| 288 | if (!TextUtils.isEmpty(ai.secondaryCpuAbi)) { |
| 289 | return ai.secondaryNativeLibraryDir; |
| 290 | } |
| 291 | |
| 292 | return ""; |
| 293 | } |
| 294 | |
| 295 | /** |
| 296 | * @return an object describing a native WebView library given the directory path of that |
| 297 | * library, or null if the library couldn't be found. |
| 298 | */ |
| 299 | @Nullable |
| 300 | private static WebViewNativeLibrary findNativeLibrary(ApplicationInfo ai, |
| 301 | String nativeLibFileName, String[] abiList, String libDirectory) |
| 302 | throws WebViewFactory.MissingWebViewPackageException { |
| 303 | if (TextUtils.isEmpty(libDirectory)) return null; |
| 304 | String libPath = libDirectory + "/" + nativeLibFileName; |
| 305 | File f = new File(libPath); |
| 306 | if (f.exists()) { |
| 307 | return new WebViewNativeLibrary(libPath, f.length()); |
| 308 | } else { |
| 309 | return getLoadFromApkPath(ai.sourceDir, abiList, nativeLibFileName); |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | /** |
| 314 | * @hide |
| 315 | */ |
| 316 | @VisibleForTesting |
| 317 | public static class WebViewNativeLibrary { |
| 318 | public final String path; |
| 319 | public final long size; |
| 320 | |
| 321 | WebViewNativeLibrary(String path, long size) { |
| 322 | this.path = path; |
| 323 | this.size = size; |
| 324 | } |
| 325 | } |
| 326 | |
| 327 | private static WebViewNativeLibrary getLoadFromApkPath(String apkPath, |
| 328 | String[] abiList, |
| 329 | String nativeLibFileName) |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 330 | throws WebViewFactory.MissingWebViewPackageException { |
| 331 | // Search the APK for a native library conforming to a listed ABI. |
| 332 | try (ZipFile z = new ZipFile(apkPath)) { |
| 333 | for (String abi : abiList) { |
| 334 | final String entry = "lib/" + abi + "/" + nativeLibFileName; |
| 335 | ZipEntry e = z.getEntry(entry); |
| 336 | if (e != null && e.getMethod() == ZipEntry.STORED) { |
| 337 | // Return a path formatted for dlopen() load from APK. |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 338 | return new WebViewNativeLibrary(apkPath + "!/" + entry, e.getSize()); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 339 | } |
| 340 | } |
| 341 | } catch (IOException e) { |
| 342 | throw new WebViewFactory.MissingWebViewPackageException(e); |
| 343 | } |
Gustav Sennton | 36bed13 | 2017-09-18 20:52:43 +0100 | [diff] [blame] | 344 | return null; |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 345 | } |
| 346 | |
| 347 | /** |
| 348 | * Sets the size of the memory area in which to store the relro section. |
| 349 | */ |
| 350 | private static void setWebViewZygoteVmSize(long vmSize) { |
| 351 | SystemProperties.set(WebViewFactory.CHROMIUM_WEBVIEW_VMSIZE_SIZE_PROPERTY, |
| 352 | Long.toString(vmSize)); |
| 353 | } |
| 354 | |
| 355 | static native boolean nativeReserveAddressSpace(long addressSpaceToReserve); |
Gustav Sennton | ae498f2 | 2017-10-05 15:34:13 +0100 | [diff] [blame] | 356 | static native boolean nativeCreateRelroFile(String lib, String relro); |
| 357 | static native int nativeLoadWithRelroFile(String lib, String relro, ClassLoader clazzLoader); |
Gustav Sennton | ed98a156 | 2017-06-06 14:25:49 +0100 | [diff] [blame] | 358 | } |