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94 lines
3.5 KiB
94 lines
3.5 KiB
4 months ago
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/* Copyright (C) 2017 The Android Open Source Project
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This file implements interfaces from the file jvmti.h. This implementation
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* is licensed under the same terms as the file jvmti.h. The
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* copyright and license information for the file jvmti.h follows.
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*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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#include "ti_dump.h"
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#include <limits>
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#include <sstream>
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#include "art_jvmti.h"
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#include "base/mutex.h"
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#include "deopt_manager.h"
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#include "events-inl.h"
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#include "runtime_callbacks.h"
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#include "scoped_thread_state_change-inl.h"
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#include "thread-current-inl.h"
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#include "thread_list.h"
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namespace openjdkjvmti {
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struct DumpCallback : public art::RuntimeSigQuitCallback {
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void SigQuit() override REQUIRES_SHARED(art::Locks::mutator_lock_) {
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art::Thread* thread = art::Thread::Current();
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art::ScopedThreadSuspension sts(thread, art::ThreadState::kNative);
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event_handler->DispatchEvent<ArtJvmtiEvent::kDataDumpRequest>(art::Thread::Current());
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}
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EventHandler* event_handler = nullptr;
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};
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static DumpCallback gDumpCallback;
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void DumpUtil::Register(EventHandler* handler) {
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gDumpCallback.event_handler = handler;
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art::ScopedThreadStateChange stsc(art::Thread::Current(),
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art::ThreadState::kWaitingForDebuggerToAttach);
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art::ScopedSuspendAll ssa("Add sigquit callback");
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art::Runtime::Current()->GetRuntimeCallbacks()->AddRuntimeSigQuitCallback(&gDumpCallback);
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}
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void DumpUtil::Unregister() {
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art::ScopedThreadStateChange stsc(art::Thread::Current(),
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art::ThreadState::kWaitingForDebuggerToAttach);
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art::ScopedSuspendAll ssa("Remove sigquit callback");
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art::Runtime::Current()->GetRuntimeCallbacks()->RemoveRuntimeSigQuitCallback(&gDumpCallback);
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}
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jvmtiError DumpUtil::DumpInternalState(jvmtiEnv *jvmti, char **data) {
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art::Thread* self = art::Thread::Current();
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if (jvmti == nullptr || self == nullptr) {
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return ERR(INVALID_ENVIRONMENT);
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} else if (data == nullptr) {
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return ERR(NULL_POINTER);
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}
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std::stringstream ss;
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// TODO Add more stuff on here.
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DeoptManager::Get()->DumpDeoptInfo(self, ss);
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jvmtiError err = OK;
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JvmtiUniquePtr<char[]> res = CopyString(jvmti, ss.str().c_str(), &err);
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*data = res.release();
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return err;
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}
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} // namespace openjdkjvmti
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