1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#ifndef ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_ 18#define ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_ 19 20#include "gc_root.h" 21#include "object.h" 22#include "object_callbacks.h" 23 24namespace art { 25 26template<class T> class Handle; 27struct StackTraceElementOffsets; 28 29namespace mirror { 30 31// C++ mirror of java.lang.StackTraceElement 32class MANAGED StackTraceElement FINAL : public Object { 33 public: 34 String* GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_) { 35 return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_)); 36 } 37 38 String* GetMethodName() REQUIRES_SHARED(Locks::mutator_lock_) { 39 return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_)); 40 } 41 42 String* GetFileName() REQUIRES_SHARED(Locks::mutator_lock_) { 43 return GetFieldObject<String>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_)); 44 } 45 46 int32_t GetLineNumber() REQUIRES_SHARED(Locks::mutator_lock_) { 47 return GetField32(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_)); 48 } 49 50 static StackTraceElement* Alloc(Thread* self, 51 Handle<String> declaring_class, 52 Handle<String> method_name, 53 Handle<String> file_name, 54 int32_t line_number) 55 REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_); 56 57 static void SetClass(ObjPtr<Class> java_lang_StackTraceElement); 58 static void ResetClass(); 59 static void VisitRoots(RootVisitor* visitor) 60 REQUIRES_SHARED(Locks::mutator_lock_); 61 static Class* GetStackTraceElement() REQUIRES_SHARED(Locks::mutator_lock_) { 62 DCHECK(!java_lang_StackTraceElement_.IsNull()); 63 return java_lang_StackTraceElement_.Read(); 64 } 65 66 private: 67 // Field order required by test "ValidateFieldOrderOfJavaCppUnionClasses". 68 HeapReference<String> declaring_class_; 69 HeapReference<String> file_name_; 70 HeapReference<String> method_name_; 71 int32_t line_number_; 72 73 template<bool kTransactionActive> 74 void Init(ObjPtr<String> declaring_class, 75 ObjPtr<String> method_name, 76 ObjPtr<String> file_name, 77 int32_t line_number) 78 REQUIRES_SHARED(Locks::mutator_lock_); 79 80 static GcRoot<Class> java_lang_StackTraceElement_; 81 82 friend struct art::StackTraceElementOffsets; // for verifying offset information 83 DISALLOW_IMPLICIT_CONSTRUCTORS(StackTraceElement); 84}; 85 86} // namespace mirror 87} // namespace art 88 89#endif // ART_RUNTIME_MIRROR_STACK_TRACE_ELEMENT_H_ 90