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 #include "stack_trace_element.h" 18 19 #include "class.h" 20 #include "class-inl.h" 21 #include "gc/accounting/card_table-inl.h" 22 #include "object-inl.h" 23 #include "handle_scope-inl.h" 24 #include "string.h" 25 26 namespace art { 27 namespace mirror { 28 29 GcRoot<Class> StackTraceElement::java_lang_StackTraceElement_; 30 31 void StackTraceElement::SetClass(Class* java_lang_StackTraceElement) { 32 CHECK(java_lang_StackTraceElement_.IsNull()); 33 CHECK(java_lang_StackTraceElement != NULL); 34 java_lang_StackTraceElement_ = GcRoot<Class>(java_lang_StackTraceElement); 35 } 36 37 void StackTraceElement::ResetClass() { 38 CHECK(!java_lang_StackTraceElement_.IsNull()); 39 java_lang_StackTraceElement_ = GcRoot<Class>(nullptr); 40 } 41 42 StackTraceElement* StackTraceElement::Alloc(Thread* self, Handle<String> declaring_class, 43 Handle<String> method_name, Handle<String> file_name, 44 int32_t line_number) { 45 StackTraceElement* trace = 46 down_cast<StackTraceElement*>(GetStackTraceElement()->AllocObject(self)); 47 if (LIKELY(trace != NULL)) { 48 if (Runtime::Current()->IsActiveTransaction()) { 49 trace->Init<true>(declaring_class, method_name, file_name, line_number); 50 } else { 51 trace->Init<false>(declaring_class, method_name, file_name, line_number); 52 } 53 } 54 return trace; 55 } 56 57 template<bool kTransactionActive> 58 void StackTraceElement::Init(Handle<String> declaring_class, Handle<String> method_name, 59 Handle<String> file_name, int32_t line_number) { 60 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_), 61 declaring_class.Get()); 62 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_), 63 method_name.Get()); 64 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_), 65 file_name.Get()); 66 SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_), 67 line_number); 68 } 69 70 void StackTraceElement::VisitRoots(RootCallback* callback, void* arg) { 71 java_lang_StackTraceElement_.VisitRootIfNonNull(callback, arg, RootInfo(kRootStickyClass)); 72 } 73 74 75 } // namespace mirror 76 } // namespace art 77
