| /* |
| * 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 "class_linker.h" |
| #include "common_test.h" |
| #include "dex_file.h" |
| #include "gtest/gtest.h" |
| #include "leb128_encoder.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/object_array-inl.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/stack_trace_element.h" |
| #include "runtime.h" |
| #include "scoped_thread_state_change.h" |
| #include "sirt_ref.h" |
| #include "thread.h" |
| #include "UniquePtr.h" |
| |
| namespace art { |
| |
| class ExceptionTest : public CommonTest { |
| protected: |
| virtual void SetUp() { |
| CommonTest::SetUp(); |
| |
| ScopedObjectAccess soa(Thread::Current()); |
| SirtRef<mirror::ClassLoader> class_loader(soa.Self(), |
| soa.Decode<mirror::ClassLoader*>(LoadDex("ExceptionHandle"))); |
| my_klass_ = class_linker_->FindClass("LExceptionHandle;", class_loader.get()); |
| ASSERT_TRUE(my_klass_ != NULL); |
| class_linker_->EnsureInitialized(my_klass_, false, true); |
| |
| dex_ = my_klass_->GetDexCache()->GetDexFile(); |
| |
| uint32_t code_size = 12; |
| fake_code_.push_back((code_size >> 24) & 0xFF); |
| fake_code_.push_back((code_size >> 16) & 0xFF); |
| fake_code_.push_back((code_size >> 8) & 0xFF); |
| fake_code_.push_back((code_size >> 0) & 0xFF); |
| for (size_t i = 0 ; i < code_size; i++) { |
| fake_code_.push_back(0x70 | i); |
| } |
| |
| fake_mapping_data_.PushBack(4); // first element is count |
| fake_mapping_data_.PushBack(4); // total (non-length) elements |
| fake_mapping_data_.PushBack(2); // count of pc to dex elements |
| // --- pc to dex table |
| fake_mapping_data_.PushBack(3); // offset 3 |
| fake_mapping_data_.PushBack(3); // maps to dex offset 3 |
| // --- dex to pc table |
| fake_mapping_data_.PushBack(3); // offset 3 |
| fake_mapping_data_.PushBack(3); // maps to dex offset 3 |
| |
| fake_vmap_table_data_.PushBack(0); |
| |
| fake_gc_map_.push_back(0); // 0 bytes to encode references and native pc offsets. |
| fake_gc_map_.push_back(0); |
| fake_gc_map_.push_back(0); // 0 entries. |
| fake_gc_map_.push_back(0); |
| |
| method_f_ = my_klass_->FindVirtualMethod("f", "()I"); |
| ASSERT_TRUE(method_f_ != NULL); |
| method_f_->SetFrameSizeInBytes(kStackAlignment); |
| method_f_->SetEntryPointFromCompiledCode(CompiledMethod::CodePointer(&fake_code_[sizeof(code_size)], kThumb2)); |
| method_f_->SetMappingTable(&fake_mapping_data_.GetData()[0]); |
| method_f_->SetVmapTable(&fake_vmap_table_data_.GetData()[0]); |
| method_f_->SetNativeGcMap(&fake_gc_map_[0]); |
| |
| method_g_ = my_klass_->FindVirtualMethod("g", "(I)V"); |
| ASSERT_TRUE(method_g_ != NULL); |
| method_g_->SetFrameSizeInBytes(kStackAlignment); |
| method_g_->SetEntryPointFromCompiledCode(CompiledMethod::CodePointer(&fake_code_[sizeof(code_size)], kThumb2)); |
| method_g_->SetMappingTable(&fake_mapping_data_.GetData()[0]); |
| method_g_->SetVmapTable(&fake_vmap_table_data_.GetData()[0]); |
| method_g_->SetNativeGcMap(&fake_gc_map_[0]); |
| } |
| |
| const DexFile* dex_; |
| |
| std::vector<uint8_t> fake_code_; |
| UnsignedLeb128EncodingVector fake_mapping_data_; |
| UnsignedLeb128EncodingVector fake_vmap_table_data_; |
| std::vector<uint8_t> fake_gc_map_; |
| |
| mirror::ArtMethod* method_f_; |
| mirror::ArtMethod* method_g_; |
| |
| private: |
| mirror::Class* my_klass_; |
| }; |
| |
| TEST_F(ExceptionTest, FindCatchHandler) { |
| const DexFile::CodeItem* code_item = dex_->GetCodeItem(method_f_->GetCodeItemOffset()); |
| |
| ASSERT_TRUE(code_item != NULL); |
| |
| ASSERT_EQ(2u, code_item->tries_size_); |
| ASSERT_NE(0u, code_item->insns_size_in_code_units_); |
| |
| const DexFile::TryItem *t0, *t1; |
| t0 = dex_->GetTryItems(*code_item, 0); |
| t1 = dex_->GetTryItems(*code_item, 1); |
| EXPECT_LE(t0->start_addr_, t1->start_addr_); |
| { |
| CatchHandlerIterator iter(*code_item, 4 /* Dex PC in the first try block */); |
| EXPECT_STREQ("Ljava/io/IOException;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex())); |
| ASSERT_TRUE(iter.HasNext()); |
| iter.Next(); |
| EXPECT_STREQ("Ljava/lang/Exception;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex())); |
| ASSERT_TRUE(iter.HasNext()); |
| iter.Next(); |
| EXPECT_FALSE(iter.HasNext()); |
| } |
| { |
| CatchHandlerIterator iter(*code_item, 8 /* Dex PC in the second try block */); |
| EXPECT_STREQ("Ljava/io/IOException;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex())); |
| ASSERT_TRUE(iter.HasNext()); |
| iter.Next(); |
| EXPECT_FALSE(iter.HasNext()); |
| } |
| { |
| CatchHandlerIterator iter(*code_item, 11 /* Dex PC not in any try block */); |
| EXPECT_FALSE(iter.HasNext()); |
| } |
| } |
| |
| TEST_F(ExceptionTest, StackTraceElement) { |
| Thread* thread = Thread::Current(); |
| thread->TransitionFromSuspendedToRunnable(); |
| bool started = runtime_->Start(); |
| CHECK(started); |
| JNIEnv* env = thread->GetJniEnv(); |
| ScopedObjectAccess soa(env); |
| |
| std::vector<uintptr_t> fake_stack; |
| ASSERT_EQ(kStackAlignment, 16); |
| ASSERT_EQ(sizeof(uintptr_t), sizeof(uint32_t)); |
| |
| #if !defined(ART_USE_PORTABLE_COMPILER) |
| // Create two fake stack frames with mapping data created in SetUp. We map offset 3 in the code |
| // to dex pc 3. |
| const uint32_t dex_pc = 3; |
| |
| // Create/push fake 16byte stack frame for method g |
| fake_stack.push_back(reinterpret_cast<uintptr_t>(method_g_)); |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| fake_stack.push_back(method_f_->ToNativePc(dex_pc)); // return pc |
| |
| // Create/push fake 16byte stack frame for method f |
| fake_stack.push_back(reinterpret_cast<uintptr_t>(method_f_)); |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| fake_stack.push_back(0xEBAD6070); // return pc |
| |
| // Pull Method* of NULL to terminate the trace |
| fake_stack.push_back(0); |
| |
| // Push null values which will become null incoming arguments. |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| |
| // Set up thread to appear as if we called out of method_g_ at pc dex 3 |
| thread->SetTopOfStack(&fake_stack[0], method_g_->ToNativePc(dex_pc)); // return pc |
| #else |
| // Create/push fake 20-byte shadow frame for method g |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| fake_stack.push_back(reinterpret_cast<uintptr_t>(method_g_)); |
| fake_stack.push_back(3); |
| fake_stack.push_back(0); |
| |
| // Create/push fake 20-byte shadow frame for method f |
| fake_stack.push_back(0); |
| fake_stack.push_back(0); |
| fake_stack.push_back(reinterpret_cast<uintptr_t>(method_f_)); |
| fake_stack.push_back(3); |
| fake_stack.push_back(0); |
| |
| thread->PushShadowFrame(reinterpret_cast<ShadowFrame*>(&fake_stack[5])); |
| thread->PushShadowFrame(reinterpret_cast<ShadowFrame*>(&fake_stack[0])); |
| #endif |
| |
| jobject internal = thread->CreateInternalStackTrace(soa); |
| ASSERT_TRUE(internal != NULL); |
| jobjectArray ste_array = Thread::InternalStackTraceToStackTraceElementArray(env, internal); |
| ASSERT_TRUE(ste_array != NULL); |
| mirror::ObjectArray<mirror::StackTraceElement>* trace_array = |
| soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(ste_array); |
| |
| ASSERT_TRUE(trace_array != NULL); |
| ASSERT_TRUE(trace_array->Get(0) != NULL); |
| EXPECT_STREQ("ExceptionHandle", |
| trace_array->Get(0)->GetDeclaringClass()->ToModifiedUtf8().c_str()); |
| EXPECT_STREQ("ExceptionHandle.java", trace_array->Get(0)->GetFileName()->ToModifiedUtf8().c_str()); |
| EXPECT_STREQ("g", trace_array->Get(0)->GetMethodName()->ToModifiedUtf8().c_str()); |
| EXPECT_EQ(37, trace_array->Get(0)->GetLineNumber()); |
| |
| ASSERT_TRUE(trace_array->Get(1) != NULL); |
| EXPECT_STREQ("ExceptionHandle", |
| trace_array->Get(1)->GetDeclaringClass()->ToModifiedUtf8().c_str()); |
| EXPECT_STREQ("ExceptionHandle.java", trace_array->Get(1)->GetFileName()->ToModifiedUtf8().c_str()); |
| EXPECT_STREQ("f", trace_array->Get(1)->GetMethodName()->ToModifiedUtf8().c_str()); |
| EXPECT_EQ(22, trace_array->Get(1)->GetLineNumber()); |
| |
| #if !defined(ART_USE_PORTABLE_COMPILER) |
| thread->SetTopOfStack(NULL, 0); // Disarm the assertion that no code is running when we detach. |
| #else |
| thread->PopShadowFrame(); |
| thread->PopShadowFrame(); |
| #endif |
| } |
| |
| } // namespace art |