blob: f72b5771ac4062ff02275f49181aaf5863f86508 [file] [log] [blame]
/*
* 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 <iostream>
#include "android-base/logging.h"
#include "arch/context.h"
#include "art_method.h"
#include "base/macros.h"
#include "base/mutex.h"
#include "mirror/object-inl.h"
#include "mirror/string.h"
#include "monitor.h"
#include "obj_ptr-inl.h"
#include "scoped_thread_state_change-inl.h"
#include "stack.h"
#include "thread-current-inl.h"
namespace art {
extern "C" JNIEXPORT void JNICALL Java_Main_testVisitLocks(JNIEnv*, jclass) {
ScopedObjectAccess soa(Thread::Current());
class VisitLocks : public StackVisitor {
public:
VisitLocks(Thread* thread, Context* context)
: StackVisitor(thread, context, StackWalkKind::kIncludeInlinedFrames) {
}
bool VisitFrame() override REQUIRES_SHARED(Locks::mutator_lock_) {
ArtMethod* m = GetMethod();
// Ignore runtime methods.
if (m == nullptr || m->IsRuntimeMethod()) {
return true;
}
if (m->PrettyMethod() == "void TestSync.run()") {
// Interesting frame.
Monitor::VisitLocks(this, Callback, nullptr);
return false;
}
return true;
}
static void Callback(ObjPtr<mirror::Object> obj, void*) REQUIRES_SHARED(Locks::mutator_lock_) {
CHECK(obj != nullptr);
CHECK(obj->IsString());
std::cerr << obj->AsString()->ToModifiedUtf8() << std::endl;
}
};
Context* context = Context::Create();
VisitLocks vl(soa.Self(), context);
vl.WalkStack();
delete context;
}
} // namespace art