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      1 /* Copyright (C) 2016 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 #ifndef ART_RUNTIME_OPENJDKJVMTI_TI_STACK_H_
     33 #define ART_RUNTIME_OPENJDKJVMTI_TI_STACK_H_
     34 
     35 #include "jni.h"
     36 #include "jvmti.h"
     37 
     38 #include "base/mutex.h"
     39 
     40 namespace openjdkjvmti {
     41 
     42 class StackUtil {
     43  public:
     44   static jvmtiError GetAllStackTraces(jvmtiEnv* env,
     45                                       jint max_frame_count,
     46                                       jvmtiStackInfo** stack_info_ptr,
     47                                       jint* thread_count_ptr)
     48       REQUIRES(!art::Locks::thread_list_lock_);
     49 
     50   static jvmtiError GetFrameCount(jvmtiEnv* env, jthread thread, jint* count_ptr);
     51 
     52   static jvmtiError GetFrameLocation(jvmtiEnv* env,
     53                                      jthread thread,
     54                                      jint depth,
     55                                      jmethodID* method_ptr,
     56                                      jlocation* location_ptr);
     57 
     58   static jvmtiError GetStackTrace(jvmtiEnv* env,
     59                                   jthread thread,
     60                                   jint start_depth,
     61                                   jint max_frame_count,
     62                                   jvmtiFrameInfo* frame_buffer,
     63                                   jint* count_ptr);
     64 
     65   static jvmtiError GetThreadListStackTraces(jvmtiEnv* env,
     66                                              jint thread_count,
     67                                              const jthread* thread_list,
     68                                              jint max_frame_count,
     69                                              jvmtiStackInfo** stack_info_ptr);
     70 };
     71 
     72 }  // namespace openjdkjvmti
     73 
     74 #endif  // ART_RUNTIME_OPENJDKJVMTI_TI_STACK_H_
     75