Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2008 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 | |
Elliott Hughes | c8fece3 | 2013-01-02 11:27:23 -0800 | [diff] [blame] | 17 | #include <dlfcn.h> |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 18 | #include <limits.h> |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 19 | #include <unistd.h> |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 20 | |
Ian Rogers | 1d54e73 | 2013-05-02 21:10:01 -0700 | [diff] [blame] | 21 | #include "gc/heap.h" |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 22 | #include "jni_internal.h" |
Ian Rogers | 2dd0e2c | 2013-01-24 12:42:14 -0800 | [diff] [blame] | 23 | #include "mirror/class_loader.h" |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 24 | #include "runtime.h" |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 25 | #include "scoped_thread_state_change.h" |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 26 | #include "ScopedUtfChars.h" |
Mathieu Chartier | c645f1d | 2014-03-06 18:11:53 -0800 | [diff] [blame] | 27 | #include "sirt_ref-inl.h" |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 28 | |
| 29 | namespace art { |
| 30 | |
Ian Rogers | 00f7d0e | 2012-07-19 15:28:27 -0700 | [diff] [blame] | 31 | static void Runtime_gc(JNIEnv*, jclass) { |
Anwar Ghuloum | 8718359 | 2013-08-14 12:12:19 -0700 | [diff] [blame] | 32 | if (Runtime::Current()->IsExplicitGcDisabled()) { |
| 33 | LOG(INFO) << "Explicit GC skipped."; |
| 34 | return; |
| 35 | } |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 36 | Runtime::Current()->GetHeap()->CollectGarbage(false); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 37 | } |
| 38 | |
Elliott Hughes | 28c7bfd | 2012-06-01 12:45:40 -0700 | [diff] [blame] | 39 | static void Runtime_nativeExit(JNIEnv*, jclass, jint status) { |
| 40 | Runtime::Current()->CallExitHook(status); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 41 | exit(status); |
| 42 | } |
| 43 | |
Elliott Hughes | c8fece3 | 2013-01-02 11:27:23 -0800 | [diff] [blame] | 44 | static jstring Runtime_nativeLoad(JNIEnv* env, jclass, jstring javaFilename, jobject javaLoader, jstring javaLdLibraryPath) { |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 45 | ScopedUtfChars filename(env, javaFilename); |
| 46 | if (filename.c_str() == NULL) { |
| 47 | return NULL; |
| 48 | } |
| 49 | |
Elliott Hughes | c8fece3 | 2013-01-02 11:27:23 -0800 | [diff] [blame] | 50 | if (javaLdLibraryPath != NULL) { |
| 51 | ScopedUtfChars ldLibraryPath(env, javaLdLibraryPath); |
| 52 | if (ldLibraryPath.c_str() == NULL) { |
| 53 | return NULL; |
| 54 | } |
| 55 | void* sym = dlsym(RTLD_DEFAULT, "android_update_LD_LIBRARY_PATH"); |
| 56 | if (sym != NULL) { |
| 57 | typedef void (*Fn)(const char*); |
| 58 | Fn android_update_LD_LIBRARY_PATH = reinterpret_cast<Fn>(sym); |
| 59 | (*android_update_LD_LIBRARY_PATH)(ldLibraryPath.c_str()); |
| 60 | } else { |
| 61 | LOG(ERROR) << "android_update_LD_LIBRARY_PATH not found; .so dependencies will not work!"; |
| 62 | } |
| 63 | } |
| 64 | |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 65 | std::string detail; |
Ian Rogers | 1eb512d | 2013-10-18 15:42:20 -0700 | [diff] [blame] | 66 | { |
| 67 | ScopedObjectAccess soa(env); |
Mathieu Chartier | 055d46c | 2014-02-06 11:22:17 -0800 | [diff] [blame] | 68 | SirtRef<mirror::ClassLoader> classLoader(soa.Self(), |
| 69 | soa.Decode<mirror::ClassLoader*>(javaLoader)); |
Ian Rogers | 1eb512d | 2013-10-18 15:42:20 -0700 | [diff] [blame] | 70 | JavaVMExt* vm = Runtime::Current()->GetJavaVM(); |
| 71 | bool success = vm->LoadNativeLibrary(filename.c_str(), classLoader, &detail); |
| 72 | if (success) { |
| 73 | return nullptr; |
| 74 | } |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 75 | } |
| 76 | |
Brian Carlstrom | 75fe90c | 2013-06-26 22:26:16 -0700 | [diff] [blame] | 77 | // Don't let a pending exception from JNI_OnLoad cause a CheckJNI issue with NewStringUTF. |
| 78 | env->ExceptionClear(); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 79 | return env->NewStringUTF(detail.c_str()); |
| 80 | } |
| 81 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 82 | static jlong Runtime_maxMemory(JNIEnv*, jclass) { |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 83 | return Runtime::Current()->GetHeap()->GetMaxMemory(); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 86 | static jlong Runtime_totalMemory(JNIEnv*, jclass) { |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 87 | return Runtime::Current()->GetHeap()->GetTotalMemory(); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 88 | } |
| 89 | |
Elliott Hughes | 1bac54f | 2012-03-16 12:48:31 -0700 | [diff] [blame] | 90 | static jlong Runtime_freeMemory(JNIEnv*, jclass) { |
Elliott Hughes | b3bd5f0 | 2012-03-08 21:05:27 -0800 | [diff] [blame] | 91 | return Runtime::Current()->GetHeap()->GetFreeMemory(); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 92 | } |
| 93 | |
| 94 | static JNINativeMethod gMethods[] = { |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 95 | NATIVE_METHOD(Runtime, freeMemory, "()J"), |
| 96 | NATIVE_METHOD(Runtime, gc, "()V"), |
| 97 | NATIVE_METHOD(Runtime, maxMemory, "()J"), |
Elliott Hughes | 28c7bfd | 2012-06-01 12:45:40 -0700 | [diff] [blame] | 98 | NATIVE_METHOD(Runtime, nativeExit, "(I)V"), |
Elliott Hughes | c8fece3 | 2013-01-02 11:27:23 -0800 | [diff] [blame] | 99 | NATIVE_METHOD(Runtime, nativeLoad, "(Ljava/lang/String;Ljava/lang/ClassLoader;Ljava/lang/String;)Ljava/lang/String;"), |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 100 | NATIVE_METHOD(Runtime, totalMemory, "()J"), |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 101 | }; |
| 102 | |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 103 | void register_java_lang_Runtime(JNIEnv* env) { |
Elliott Hughes | eac7667 | 2012-05-24 21:56:51 -0700 | [diff] [blame] | 104 | REGISTER_NATIVE_METHODS("java/lang/Runtime"); |
Elliott Hughes | bf86d04 | 2011-08-31 17:53:14 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | } // namespace art |