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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_OPENJDKJVMTI_TI_METHOD_H_
     33 #define ART_OPENJDKJVMTI_TI_METHOD_H_
     34 
     35 #include "dex/primitive.h"
     36 #include "jni.h"
     37 #include "jvmti.h"
     38 
     39 namespace openjdkjvmti {
     40 
     41 class EventHandler;
     42 
     43 class MethodUtil {
     44  public:
     45   static void Register(EventHandler* event_handler);
     46   static void Unregister();
     47 
     48   static jvmtiError GetBytecodes(jvmtiEnv* env,
     49                                  jmethodID method,
     50                                  jint* count_ptr,
     51                                  unsigned char** bytecodes);
     52 
     53   static jvmtiError GetArgumentsSize(jvmtiEnv* env, jmethodID method, jint* size_ptr);
     54 
     55   static jvmtiError GetMaxLocals(jvmtiEnv* env, jmethodID method, jint* max_ptr);
     56 
     57   static jvmtiError GetMethodName(jvmtiEnv* env,
     58                                   jmethodID method,
     59                                   char** name_ptr,
     60                                   char** signature_ptr,
     61                                   char** generic_ptr);
     62 
     63   static jvmtiError GetMethodDeclaringClass(jvmtiEnv* env,
     64                                             jmethodID method,
     65                                             jclass* declaring_class_ptr);
     66 
     67   static jvmtiError GetMethodLocation(jvmtiEnv* env,
     68                                       jmethodID method,
     69                                       jlocation* start_location_ptr,
     70                                       jlocation* end_location_ptr);
     71 
     72   static jvmtiError GetMethodModifiers(jvmtiEnv* env,
     73                                        jmethodID method,
     74                                        jint* modifiers_ptr);
     75 
     76   static jvmtiError GetLineNumberTable(jvmtiEnv* env,
     77                                        jmethodID method,
     78                                        jint* entry_count_ptr,
     79                                        jvmtiLineNumberEntry** table_ptr);
     80 
     81   static jvmtiError IsMethodNative(jvmtiEnv* env, jmethodID method, jboolean* is_native_ptr);
     82   static jvmtiError IsMethodObsolete(jvmtiEnv* env, jmethodID method, jboolean* is_obsolete_ptr);
     83   static jvmtiError IsMethodSynthetic(jvmtiEnv* env, jmethodID method, jboolean* is_synthetic_ptr);
     84   static jvmtiError GetLocalVariableTable(jvmtiEnv* env,
     85                                           jmethodID method,
     86                                           jint* entry_count_ptr,
     87                                           jvmtiLocalVariableEntry** table_ptr);
     88 
     89   template<typename T>
     90   static jvmtiError SetLocalVariable(jvmtiEnv* env, jthread thread, jint depth, jint slot, T data);
     91 
     92   template<typename T>
     93   static jvmtiError GetLocalVariable(jvmtiEnv* env, jthread thread, jint depth, jint slot, T* data);
     94 
     95   static jvmtiError GetLocalInstance(jvmtiEnv* env, jthread thread, jint depth, jobject* data);
     96 
     97  private:
     98   static jvmtiError SetLocalVariableGeneric(jvmtiEnv* env,
     99                                             jthread thread,
    100                                             jint depth,
    101                                             jint slot,
    102                                             art::Primitive::Type type,
    103                                             jvalue value);
    104   static jvmtiError GetLocalVariableGeneric(jvmtiEnv* env,
    105                                             jthread thread,
    106                                             jint depth,
    107                                             jint slot,
    108                                             art::Primitive::Type type,
    109                                             jvalue* value);
    110 };
    111 
    112 }  // namespace openjdkjvmti
    113 
    114 #endif  // ART_OPENJDKJVMTI_TI_METHOD_H_
    115