76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "jni.h"
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#include <iostream>
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#include "android-base/logging.h"
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#include "arch/context.h"
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#include "art_method.h"
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#include "base/macros.h"
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#include "base/mutex.h"
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#include "mirror/object-inl.h"
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#include "mirror/string.h"
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#include "monitor.h"
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#include "obj_ptr-inl.h"
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#include "scoped_thread_state_change-inl.h"
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#include "stack.h"
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#include "thread-current-inl.h"
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namespace art {
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extern "C" JNIEXPORT void JNICALL Java_Main_testVisitLocks(JNIEnv*, jclass) {
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ScopedObjectAccess soa(Thread::Current());
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class VisitLocks : public StackVisitor {
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public:
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VisitLocks(Thread* thread, Context* context)
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: StackVisitor(thread, context, StackWalkKind::kIncludeInlinedFrames) {
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}
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bool VisitFrame() override REQUIRES_SHARED(Locks::mutator_lock_) {
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ArtMethod* m = GetMethod();
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// Ignore runtime methods.
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if (m == nullptr || m->IsRuntimeMethod()) {
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return true;
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}
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if (m->PrettyMethod() == "void TestSync.run()") {
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// Interesting frame.
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Monitor::VisitLocks(this, Callback, nullptr);
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return false;
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}
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return true;
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}
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static void Callback(ObjPtr<mirror::Object> obj, void*) REQUIRES_SHARED(Locks::mutator_lock_) {
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CHECK(obj != nullptr);
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CHECK(obj->IsString());
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std::cerr << obj->AsString()->ToModifiedUtf8() << std::endl;
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}
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};
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Context* context = Context::Create();
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VisitLocks vl(soa.Self(), context);
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vl.WalkStack();
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delete context;
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}
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} // namespace art
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