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/*
* 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 "object_utils.h"
#include "utils.h"
#include "well_known_classes.h"
namespace art {
namespace mirror {
Class* Throwable::java_lang_Throwable_ = NULL;
void Throwable::SetCause(Throwable* cause) {
CHECK(cause != nullptr);
CHECK(cause != this);
Throwable* current_cause = GetFieldObject<Throwable>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_),
false);
CHECK(current_cause == NULL || current_cause == this);
if (Runtime::Current()->IsActiveTransaction()) {
SetFieldObject<true>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_), cause, false);
} else {
SetFieldObject<false>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_), cause, false);
}
}
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 != NULL && 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));
MethodHelper mh;
for (int32_t i = 0; i < depth; ++i) {
ArtMethod* method = down_cast<ArtMethod*>(method_trace->Get(i));
mh.ChangeMethod(method);
uint32_t dex_pc = pc_trace->Get(i);
int32_t line_number = mh.GetLineNumFromDexPC(dex_pc);
const char* source_file = mh.GetDeclaringClassSourceFile();
result += StringPrintf(" at %s (%s:%d)\n", PrettyMethod(method, true).c_str(),
source_file, line_number);
}
}
Throwable* cause = GetFieldObject<Throwable>(OFFSET_OF_OBJECT_MEMBER(Throwable, cause_), false);
if (cause != NULL && 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_ == NULL);
CHECK(java_lang_Throwable != NULL);
java_lang_Throwable_ = java_lang_Throwable;
}
void Throwable::ResetClass() {
CHECK(java_lang_Throwable_ != NULL);
java_lang_Throwable_ = NULL;
}
void Throwable::VisitRoots(RootCallback* callback, void* arg) {
if (java_lang_Throwable_ != nullptr) {
java_lang_Throwable_ = down_cast<Class*>(callback(java_lang_Throwable_, arg, 0,
kRootStickyClass));
}
}
} // namespace mirror
} // namespace art
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