/* * Copyright (C) 2017 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 "jni.h" #include "art_method.h" #include "jit/jit.h" #include "jit/jit_code_cache.h" #include "jni_internal.h" #include "mirror/class.h" #include "runtime.h" #include "scoped_thread_state_change-inl.h" #include "thread_list.h" namespace art { extern "C" JNIEXPORT jboolean Java_JitCacheChurnTest_removeJitCompiledMethod(JNIEnv* env, jclass, jobject javaMethod, jboolean releaseMemory) { if (!Runtime::Current()->UseJitCompilation()) { return JNI_FALSE; } jit::Jit* jit = Runtime::Current()->GetJit(); jit->WaitForCompilationToFinish(Thread::Current()); ScopedObjectAccess soa(env); ArtMethod* method = ArtMethod::FromReflectedMethod(soa, javaMethod); jit::JitCodeCache* code_cache = jit->GetCodeCache(); // Drop the shared mutator lock ScopedThreadSuspension selfSuspension(Thread::Current(), art::ThreadState::kNative); // Get exclusive mutator lock with suspend all. ScopedSuspendAll suspend("Removing JIT compiled method", /*long_suspend*/true); bool removed = code_cache->RemoveMethod(method, static_cast<bool>(releaseMemory)); return removed ? JNI_TRUE : JNI_FALSE; } } // namespace art