1/* Copyright (C) 2017 The Android Open Source Project 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This file implements interfaces from the file jvmti.h. This implementation 5 * is licensed under the same terms as the file jvmti.h. The 6 * copyright and license information for the file jvmti.h follows. 7 * 8 * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved. 9 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 10 * 11 * This code is free software; you can redistribute it and/or modify it 12 * under the terms of the GNU General Public License version 2 only, as 13 * published by the Free Software Foundation. Oracle designates this 14 * particular file as subject to the "Classpath" exception as provided 15 * by Oracle in the LICENSE file that accompanied this code. 16 * 17 * This code is distributed in the hope that it will be useful, but WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 20 * version 2 for more details (a copy is included in the LICENSE file that 21 * accompanied this code). 22 * 23 * You should have received a copy of the GNU General Public License version 24 * 2 along with this work; if not, write to the Free Software Foundation, 25 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 26 * 27 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 28 * or visit www.oracle.com if you need additional information or have any 29 * questions. 30 */ 31 32#include "ti_dump.h" 33 34#include <limits> 35 36 37#include "art_jvmti.h" 38#include "base/mutex.h" 39#include "events-inl.h" 40#include "runtime_callbacks.h" 41#include "scoped_thread_state_change-inl.h" 42#include "thread-inl.h" 43#include "thread_list.h" 44 45namespace openjdkjvmti { 46 47struct DumpCallback : public art::RuntimeSigQuitCallback { 48 void SigQuit() OVERRIDE REQUIRES_SHARED(art::Locks::mutator_lock_) { 49 art::Thread* thread = art::Thread::Current(); 50 art::ScopedThreadSuspension sts(thread, art::ThreadState::kNative); 51 event_handler->DispatchEvent<ArtJvmtiEvent::kDataDumpRequest>(nullptr); 52 } 53 54 EventHandler* event_handler = nullptr; 55}; 56 57static DumpCallback gDumpCallback; 58 59void DumpUtil::Register(EventHandler* handler) { 60 gDumpCallback.event_handler = handler; 61 art::ScopedThreadStateChange stsc(art::Thread::Current(), 62 art::ThreadState::kWaitingForDebuggerToAttach); 63 art::ScopedSuspendAll ssa("Add sigquit callback"); 64 art::Runtime::Current()->GetRuntimeCallbacks()->AddRuntimeSigQuitCallback(&gDumpCallback); 65} 66 67void DumpUtil::Unregister() { 68 art::ScopedThreadStateChange stsc(art::Thread::Current(), 69 art::ThreadState::kWaitingForDebuggerToAttach); 70 art::ScopedSuspendAll ssa("Remove sigquit callback"); 71 art::Runtime::Current()->GetRuntimeCallbacks()->RemoveRuntimeSigQuitCallback(&gDumpCallback); 72} 73 74} // namespace openjdkjvmti 75