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 #include "art_jvmti.h" 37 #include "base/mutex.h" 38 #include "events-inl.h" 39 #include "runtime_callbacks.h" 40 #include "scoped_thread_state_change-inl.h" 41 #include "thread-current-inl.h" 42 #include "thread_list.h" 43 44 namespace openjdkjvmti { 45 46 struct DumpCallback : public art::RuntimeSigQuitCallback { 47 void SigQuit() OVERRIDE REQUIRES_SHARED(art::Locks::mutator_lock_) { 48 art::Thread* thread = art::Thread::Current(); 49 art::ScopedThreadSuspension sts(thread, art::ThreadState::kNative); 50 event_handler->DispatchEvent<ArtJvmtiEvent::kDataDumpRequest>(art::Thread::Current()); 51 } 52 53 EventHandler* event_handler = nullptr; 54 }; 55 56 static DumpCallback gDumpCallback; 57 58 void DumpUtil::Register(EventHandler* handler) { 59 gDumpCallback.event_handler = handler; 60 art::ScopedThreadStateChange stsc(art::Thread::Current(), 61 art::ThreadState::kWaitingForDebuggerToAttach); 62 art::ScopedSuspendAll ssa("Add sigquit callback"); 63 art::Runtime::Current()->GetRuntimeCallbacks()->AddRuntimeSigQuitCallback(&gDumpCallback); 64 } 65 66 void DumpUtil::Unregister() { 67 art::ScopedThreadStateChange stsc(art::Thread::Current(), 68 art::ThreadState::kWaitingForDebuggerToAttach); 69 art::ScopedSuspendAll ssa("Remove sigquit callback"); 70 art::Runtime::Current()->GetRuntimeCallbacks()->RemoveRuntimeSigQuitCallback(&gDumpCallback); 71 } 72 73 } // namespace openjdkjvmti 74
