1 files changed, 99 insertions, 0 deletions
diff --git a/runtime/native/java_lang_Runtime.cc b/runtime/native/java_lang_Runtime.cc
new file mode 100644
index 0000000..e380c17
--- /dev/null
+++ b/runtime/native/java_lang_Runtime.cc
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <dlfcn.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include "gc/heap.h"
+#include "jni_internal.h"
+#include "mirror/class_loader.h"
+#include "runtime.h"
+#include "scoped_thread_state_change.h"
+#include "ScopedUtfChars.h"
+
+namespace art {
+
+static void Runtime_gc(JNIEnv*, jclass) {
+  Runtime::Current()->GetHeap()->CollectGarbage(false);
+}
+
+static void Runtime_nativeExit(JNIEnv*, jclass, jint status) {
+  Runtime::Current()->CallExitHook(status);
+  exit(status);
+}
+
+static jstring Runtime_nativeLoad(JNIEnv* env, jclass, jstring javaFilename, jobject javaLoader, jstring javaLdLibraryPath) {
+  ScopedObjectAccess soa(env);
+  ScopedUtfChars filename(env, javaFilename);
+  if (filename.c_str() == NULL) {
+    return NULL;
+  }
+
+  if (javaLdLibraryPath != NULL) {
+    ScopedUtfChars ldLibraryPath(env, javaLdLibraryPath);
+    if (ldLibraryPath.c_str() == NULL) {
+      return NULL;
+    }
+    void* sym = dlsym(RTLD_DEFAULT, "android_update_LD_LIBRARY_PATH");
+    if (sym != NULL) {
+      typedef void (*Fn)(const char*);
+      Fn android_update_LD_LIBRARY_PATH = reinterpret_cast<Fn>(sym);
+      (*android_update_LD_LIBRARY_PATH)(ldLibraryPath.c_str());
+    } else {
+      LOG(ERROR) << "android_update_LD_LIBRARY_PATH not found; .so dependencies will not work!";
+    }
+  }
+
+  mirror::ClassLoader* classLoader = soa.Decode<mirror::ClassLoader*>(javaLoader);
+  std::string detail;
+  JavaVMExt* vm = Runtime::Current()->GetJavaVM();
+  bool success = vm->LoadNativeLibrary(filename.c_str(), classLoader, detail);
+  if (success) {
+    return NULL;
+  }
+
+  // Don't let a pending exception from JNI_OnLoad cause a CheckJNI issue with NewStringUTF.
+  env->ExceptionClear();
+  return env->NewStringUTF(detail.c_str());
+}
+
+static jlong Runtime_maxMemory(JNIEnv*, jclass) {
+  return Runtime::Current()->GetHeap()->GetMaxMemory();
+}
+
+static jlong Runtime_totalMemory(JNIEnv*, jclass) {
+  return Runtime::Current()->GetHeap()->GetTotalMemory();
+}
+
+static jlong Runtime_freeMemory(JNIEnv*, jclass) {
+  return Runtime::Current()->GetHeap()->GetFreeMemory();
+}
+
+static JNINativeMethod gMethods[] = {
+  NATIVE_METHOD(Runtime, freeMemory, "()J"),
+  NATIVE_METHOD(Runtime, gc, "()V"),
+  NATIVE_METHOD(Runtime, maxMemory, "()J"),
+  NATIVE_METHOD(Runtime, nativeExit, "(I)V"),
+  NATIVE_METHOD(Runtime, nativeLoad, "(Ljava/lang/String;Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/String;"),
+  NATIVE_METHOD(Runtime, totalMemory, "()J"),
+};
+
+void register_java_lang_Runtime(JNIEnv* env) {
+  REGISTER_NATIVE_METHODS("java/lang/Runtime");
+}
+
+}  // namespace art