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:
isNextJitGcFull(Thread * self)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, *Locks::jit_lock_);
35 return cache->ShouldDoFullCollection();
36 }
37 };
38
39 // Calls through to a static method with signature "()V".
40 extern "C" JNIEXPORT
Java_Main_callThrough(JNIEnv * env,jclass,jclass klass,jstring methodName)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
Java_Main_jitGc(JNIEnv *,jclass)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
Java_Main_isNextJitGcFull(JNIEnv *,jclass)58 jboolean Java_Main_isNextJitGcFull(JNIEnv*, jclass) {
59 ScopedObjectAccess soa(Thread::Current());
60 return JitJniStubTestHelper::isNextJitGcFull(soa.Self());
61 }
62
63 } // namespace art
64