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
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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.
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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).
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23  * You should have received a copy of the GNU General Public License version
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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