1 /* 2 * Copyright 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 #include <jni.h> 18 19 #include "jit/jit.h" 20 #include "jit/jit_code_cache.h" 21 #include "mirror/class.h" 22 #include "mirror/string.h" 23 #include "runtime.h" 24 #include "scoped_thread_state_change-inl.h" 25 26 namespace art { 27 28 // Local class declared as a friend of JitCodeCache so that we can access its internals. 29 class JitJniStubTestHelper { 30 public: 31 static bool isNextJitGcFull(Thread* self) REQUIRES_SHARED(Locks::mutator_lock_) { 32 CHECK(Runtime::Current()->GetJit() != nullptr); 33 jit::JitCodeCache* cache = Runtime::Current()->GetJit()->GetCodeCache(); 34 MutexLock mu(self, cache->lock_); 35 return cache->ShouldDoFullCollection(); 36 } 37 }; 38 39 // Calls through to a static method with signature "()V". 40 extern "C" JNIEXPORT 41 void Java_Main_callThrough(JNIEnv* env, jclass, jclass klass, jstring methodName) { 42 ScopedObjectAccess soa(Thread::Current()); 43 std::string name = soa.Decode<mirror::String>(methodName)->ToModifiedUtf8(); 44 jmethodID method = env->GetStaticMethodID(klass, name.c_str(), "()V"); 45 CHECK(method != nullptr) << soa.Decode<mirror::Class>(klass)->PrettyDescriptor() << "." << name; 46 env->CallStaticVoidMethod(klass, method); 47 } 48 49 extern "C" JNIEXPORT 50 void Java_Main_jitGc(JNIEnv*, jclass) { 51 CHECK(Runtime::Current()->GetJit() != nullptr); 52 jit::JitCodeCache* cache = Runtime::Current()->GetJit()->GetCodeCache(); 53 ScopedObjectAccess soa(Thread::Current()); 54 cache->GarbageCollectCache(Thread::Current()); 55 } 56 57 extern "C" JNIEXPORT 58 jboolean Java_Main_isNextJitGcFull(JNIEnv*, jclass) { 59 ScopedObjectAccess soa(Thread::Current()); 60 return JitJniStubTestHelper::isNextJitGcFull(soa.Self()); 61 } 62 63 } // namespace art 64
