/**
* Call this method just after loading all native shared libraries in this process. Note that when
* in a service process, this will block until the RELRO bundle is received, i.e. when another
* thread calls useSharedRelros().
*/
public static void finishLibraryLoad() {
if (DEBUG) Log.i(TAG, "finishLibraryLoad() called");
synchronized (Linker.class) {
if (DEBUG)
Log.i(
TAG,
String.format(
Locale.US,
"sInBrowserProcess=%s sBrowserUsesSharedRelro=%s sWaitForSharedRelros=%s",
sInBrowserProcess ? "true" : "false",
sBrowserUsesSharedRelro ? "true" : "false",
sWaitForSharedRelros ? "true" : "false"));
if (sLoadedLibraries == null) {
if (DEBUG) Log.i(TAG, "No libraries loaded");
} else {
if (sInBrowserProcess) {
// Create new Bundle containing RELRO section information
// for all loaded libraries. Make it available to getSharedRelros().
sSharedRelros = createBundleFromLibInfoMap(sLoadedLibraries);
if (DEBUG) {
Log.i(TAG, "Shared RELRO created");
dumpBundle(sSharedRelros);
}
if (sBrowserUsesSharedRelro) {
useSharedRelrosLocked(sSharedRelros);
}
}
if (sWaitForSharedRelros) {
assert !sInBrowserProcess;
// Wait until the shared relro bundle is received from useSharedRelros().
while (sSharedRelros == null) {
try {
Linker.class.wait();
} catch (InterruptedException ie) {
// no-op
}
}
useSharedRelrosLocked(sSharedRelros);
// Clear the Bundle to ensure its file descriptor references can't be reused.
sSharedRelros.clear();
sSharedRelros = null;
}
}
if (NativeLibraries.ENABLE_LINKER_TESTS && sTestRunnerClassName != null) {
// The TestRunner implementation must be instantiated _after_
// all libraries are loaded to ensure that its native methods
// are properly registered.
if (DEBUG) Log.i(TAG, "Instantiating " + sTestRunnerClassName);
TestRunner testRunner = null;
try {
testRunner = (TestRunner) Class.forName(sTestRunnerClassName).newInstance();
} catch (Exception e) {
Log.e(TAG, "Could not extract test runner class name", e);
testRunner = null;
}
if (testRunner != null) {
if (!testRunner.runChecks(sMemoryDeviceConfig, sInBrowserProcess)) {
Log.wtf(TAG, "Linker runtime tests failed in this process!!");
assert false;
} else {
Log.i(TAG, "All linker tests passed!");
}
}
}
}
if (DEBUG) Log.i(TAG, "finishLibraryLoad() exiting");
}
