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
SetClass(ObjPtr<Class> java_lang_StackTraceElement)31 void StackTraceElement::SetClass(ObjPtr<Class> java_lang_StackTraceElement) {
32 CHECK(java_lang_StackTraceElement_.IsNull());
33 CHECK(java_lang_StackTraceElement != nullptr);
34 java_lang_StackTraceElement_ = GcRoot<Class>(java_lang_StackTraceElement);
35 }
36
ResetClass()37 void StackTraceElement::ResetClass() {
38 CHECK(!java_lang_StackTraceElement_.IsNull());
39 java_lang_StackTraceElement_ = GcRoot<Class>(nullptr);
40 }
41
Alloc(Thread * self,Handle<String> declaring_class,Handle<String> method_name,Handle<String> file_name,int32_t line_number)42 StackTraceElement* StackTraceElement::Alloc(Thread* self,
43 Handle<String> declaring_class,
44 Handle<String> method_name,
45 Handle<String> file_name,
46 int32_t line_number) {
47 ObjPtr<StackTraceElement> trace =
48 ObjPtr<StackTraceElement>::DownCast(GetStackTraceElement()->AllocObject(self));
49 if (LIKELY(trace != nullptr)) {
50 if (Runtime::Current()->IsActiveTransaction()) {
51 trace->Init<true>(declaring_class.Get(), method_name.Get(), file_name.Get(), line_number);
52 } else {
53 trace->Init<false>(declaring_class.Get(), method_name.Get(), file_name.Get(), line_number);
54 }
55 }
56 return trace.Ptr();
57 }
58
59 template<bool kTransactionActive>
Init(ObjPtr<String> declaring_class,ObjPtr<String> method_name,ObjPtr<String> file_name,int32_t line_number)60 void StackTraceElement::Init(ObjPtr<String> declaring_class,
61 ObjPtr<String> method_name,
62 ObjPtr<String> file_name,
63 int32_t line_number) {
64 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, declaring_class_),
65 declaring_class);
66 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, method_name_),
67 method_name);
68 SetFieldObject<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, file_name_),
69 file_name);
70 SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(StackTraceElement, line_number_),
71 line_number);
72 }
73
VisitRoots(RootVisitor * visitor)74 void StackTraceElement::VisitRoots(RootVisitor* visitor) {
75 java_lang_StackTraceElement_.VisitRootIfNonNull(visitor, RootInfo(kRootStickyClass));
76 }
77
78
79 } // namespace mirror
80 } // namespace art
81