Merge "ART: Add JIT cache race test"

1 files changed, 56 insertions, 0 deletions

diff --git a/test/708-jit-cache-churn/jit.cc b/test/708-jit-cache-churn/jit.cc
new file mode 100644
index 0000000000..1284a8703d
--- /dev/null
+++ b/test/708-jit-cache-churn/jit.cc
@@ -0,0 +1,56 @@
+/*
+ * 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