1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "throwable.h"
#include "art_method-inl.h"
#include "class-inl.h"
#include "dex_file-inl.h"
#include "gc/accounting/card_table-inl.h"
#include "object-inl.h"
#include "object_array.h"
#include "object_array-inl.h"
#include "stack_trace_element.h"
#include "utils.h"
#include "well_known_classes.h"
namespace art {
namespace mirror {
GcRoot<Class> Throwable::java_lang_Throwable_;
void Throwable::SetDetailMessage(String* new_detail_message) {
if (Runtime::Current()->IsActiveTransaction()) {
SetFieldObject<true>(OFFSET_OF_OBJECT_MEMBER(Throwable, detail_message_), new_detail_message);
} else {
SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(Throwable, detail_message_),
new_detail_message);
}
}
void Throwable::SetCause(Throwable* cause) {
CHECK(cause != nullptr);
CHECK(cause != this);
Throwable* current_cause = GetFieldObject<Throwable>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_));
CHECK(current_cause == NULL || current_cause == this);
if (Runtime::Current()->IsActiveTransaction()) {
SetFieldObject<true>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_), cause);
} else {
SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_), cause);
}
}
void Throwable::SetStackState(Object* state) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
CHECK(state != nullptr);
if (Runtime::Current()->IsActiveTransaction()) {
SetFieldObjectVolatile<true>(OFFSET_OF_OBJECT_MEMBER(Throwable, stack_state_), state);
} else {
SetFieldObjectVolatile<false>(OFFSET_OF_OBJECT_MEMBER(Throwable, stack_state_), state);
}
}
bool Throwable::IsCheckedException() {
if (InstanceOf(WellKnownClasses::ToClass(WellKnownClasses::java_lang_Error))) {
return false;
}
return !InstanceOf(WellKnownClasses::ToClass(WellKnownClasses::java_lang_RuntimeException));
}
std::string Throwable::Dump() {
std::string result(PrettyTypeOf(this));
result += ": ";
String* msg = GetDetailMessage();
if (msg != NULL) {
result += msg->ToModifiedUtf8();
}
result += "\n";
Object* stack_state = GetStackState();
// check stack state isn't missing or corrupt
if (stack_state != nullptr && stack_state->IsObjectArray()) {
// Decode the internal stack trace into the depth and method trace
ObjectArray<Object>* method_trace = down_cast<ObjectArray<Object>*>(stack_state);
int32_t depth = method_trace->GetLength() - 1;
IntArray* pc_trace = down_cast<IntArray*>(method_trace->Get(depth));
if (depth == 0) {
result += "(Throwable with empty stack trace)";
} else {
for (int32_t i = 0; i < depth; ++i) {
mirror::ArtMethod* method = down_cast<ArtMethod*>(method_trace->Get(i));
uint32_t dex_pc = pc_trace->Get(i);
int32_t line_number = method->GetLineNumFromDexPC(dex_pc);
const char* source_file = method->GetDeclaringClassSourceFile();
result += StringPrintf(" at %s (%s:%d)\n", PrettyMethod(method, true).c_str(),
source_file, line_number);
}
}
} else {
Object* stack_trace = GetStackTrace();
if (stack_trace != nullptr && stack_trace->IsObjectArray()) {
CHECK_EQ(stack_trace->GetClass()->GetComponentType(),
StackTraceElement::GetStackTraceElement());
ObjectArray<StackTraceElement>* ste_array =
down_cast<ObjectArray<StackTraceElement>*>(stack_trace);
if (ste_array->GetLength() == 0) {
result += "(Throwable with empty stack trace)";
} else {
for (int32_t i = 0; i < ste_array->GetLength(); ++i) {
StackTraceElement* ste = ste_array->Get(i);
result += StringPrintf(" at %s (%s:%d)\n",
ste->GetMethodName()->ToModifiedUtf8().c_str(),
ste->GetFileName()->ToModifiedUtf8().c_str(),
ste->GetLineNumber());
}
}
} else {
result += "(Throwable with no stack trace)";
}
}
Throwable* cause = GetFieldObject<Throwable>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_));
if (cause != nullptr && cause != this) { // Constructor makes cause == this by default.
result += "Caused by: ";
result += cause->Dump();
}
return result;
}
void Throwable::SetClass(Class* java_lang_Throwable) {
CHECK(java_lang_Throwable_.IsNull());
CHECK(java_lang_Throwable != NULL);
java_lang_Throwable_ = GcRoot<Class>(java_lang_Throwable);
}
void Throwable::ResetClass() {
CHECK(!java_lang_Throwable_.IsNull());
java_lang_Throwable_ = GcRoot<Class>(nullptr);
}
void Throwable::VisitRoots(RootCallback* callback, void* arg) {
if (!java_lang_Throwable_.IsNull()) {
java_lang_Throwable_.VisitRoot(callback, arg, 0, kRootStickyClass);
}
}
} // namespace mirror
} // namespace art
|
