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Elliott Hughes2faa5f12012-01-30 14:42:07 -08001/*
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 */
Shih-wei Liao2fb97532011-08-11 16:17:23 -070016
Ian Rogers700a4022014-05-19 16:49:03 -070017#include <memory>
18
Shih-wei Liao2fb97532011-08-11 16:17:23 -070019#include "class_linker.h"
Brian Carlstroma1ce1fe2014-02-24 23:23:58 -080020#include "common_runtime_test.h"
Shih-wei Liao2fb97532011-08-11 16:17:23 -070021#include "dex_file.h"
Elliott Hughes90a33692011-08-30 13:27:07 -070022#include "gtest/gtest.h"
Brian Carlstroma1ce1fe2014-02-24 23:23:58 -080023#include "leb128.h"
Ian Rogers4f6ad8a2013-03-18 15:27:28 -070024#include "mirror/class-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080025#include "mirror/object_array-inl.h"
Ian Rogers04d7aa92013-03-16 14:29:17 -070026#include "mirror/object-inl.h"
Ian Rogers2dd0e2c2013-01-24 12:42:14 -080027#include "mirror/stack_trace_element.h"
Shih-wei Liao2fb97532011-08-11 16:17:23 -070028#include "runtime.h"
Ian Rogers00f7d0e2012-07-19 15:28:27 -070029#include "scoped_thread_state_change.h"
Mathieu Chartiereb8167a2014-05-07 15:43:14 -070030#include "handle_scope-inl.h"
Shih-wei Liao2fb97532011-08-11 16:17:23 -070031#include "thread.h"
Vladimir Marko2e589aa2014-02-25 17:53:53 +000032#include "vmap_table.h"
Shih-wei Liao2fb97532011-08-11 16:17:23 -070033
34namespace art {
35
Brian Carlstroma1ce1fe2014-02-24 23:23:58 -080036class ExceptionTest : public CommonRuntimeTest {
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -070037 protected:
38 virtual void SetUp() {
Brian Carlstroma1ce1fe2014-02-24 23:23:58 -080039 CommonRuntimeTest::SetUp();
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -070040
Ian Rogers00f7d0e2012-07-19 15:28:27 -070041 ScopedObjectAccess soa(Thread::Current());
Mathieu Chartiereb8167a2014-05-07 15:43:14 -070042 StackHandleScope<2> hs(soa.Self());
43 Handle<mirror::ClassLoader> class_loader(
44 hs.NewHandle(soa.Decode<mirror::ClassLoader*>(LoadDex("ExceptionHandle"))));
Ian Rogers98379392014-02-24 16:53:16 -080045 my_klass_ = class_linker_->FindClass(soa.Self(), "LExceptionHandle;", class_loader);
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -070046 ASSERT_TRUE(my_klass_ != NULL);
Mathieu Chartiereb8167a2014-05-07 15:43:14 -070047 Handle<mirror::Class> klass(hs.NewHandle(my_klass_));
Ian Rogers7b078e82014-09-10 14:44:24 -070048 class_linker_->EnsureInitialized(soa.Self(), klass, true, true);
Mathieu Chartiereb8167a2014-05-07 15:43:14 -070049 my_klass_ = klass.Get();
Brian Carlstrom33f741e2011-10-03 11:24:05 -070050
Ian Rogers4445a7e2012-10-05 17:19:13 -070051 dex_ = my_klass_->GetDexCache()->GetDexFile();
Brian Carlstrom33f741e2011-10-03 11:24:05 -070052
Brian Carlstromf8bbb842012-03-14 03:01:42 -070053 uint32_t code_size = 12;
Brian Carlstromf8bbb842012-03-14 03:01:42 -070054 for (size_t i = 0 ; i < code_size; i++) {
55 fake_code_.push_back(0x70 | i);
Brian Carlstrom3320cf42011-10-04 14:58:28 -070056 }
57
Vladimir Marko1e6cb632013-11-28 16:27:29 +000058 fake_mapping_data_.PushBackUnsigned(4); // first element is count
59 fake_mapping_data_.PushBackUnsigned(4); // total (non-length) elements
60 fake_mapping_data_.PushBackUnsigned(2); // count of pc to dex elements
Bill Buzbeea5b30242012-09-28 07:19:44 -070061 // --- pc to dex table
Vladimir Marko1e6cb632013-11-28 16:27:29 +000062 fake_mapping_data_.PushBackUnsigned(3 - 0); // offset 3
63 fake_mapping_data_.PushBackSigned(3 - 0); // maps to dex offset 3
Bill Buzbeea5b30242012-09-28 07:19:44 -070064 // --- dex to pc table
Vladimir Marko1e6cb632013-11-28 16:27:29 +000065 fake_mapping_data_.PushBackUnsigned(3 - 0); // offset 3
66 fake_mapping_data_.PushBackSigned(3 - 0); // maps to dex offset 3
Brian Carlstrom33f741e2011-10-03 11:24:05 -070067
Vladimir Marko2e589aa2014-02-25 17:53:53 +000068 fake_vmap_table_data_.PushBackUnsigned(0 + VmapTable::kEntryAdjustment);
Mathieu Chartier342a2622012-06-28 12:04:52 -070069
Ian Rogers5a6220c2012-09-24 10:52:10 -070070 fake_gc_map_.push_back(0); // 0 bytes to encode references and native pc offsets.
71 fake_gc_map_.push_back(0);
72 fake_gc_map_.push_back(0); // 0 entries.
73 fake_gc_map_.push_back(0);
74
Vladimir Marko8a630572014-04-09 18:45:35 +010075 const std::vector<uint8_t>& fake_vmap_table_data = fake_vmap_table_data_.GetData();
76 const std::vector<uint8_t>& fake_mapping_data = fake_mapping_data_.GetData();
Vladimir Marko7624d252014-05-02 14:40:15 +010077 uint32_t vmap_table_offset = sizeof(OatQuickMethodHeader) + fake_vmap_table_data.size();
Vladimir Marko8a630572014-04-09 18:45:35 +010078 uint32_t mapping_table_offset = vmap_table_offset + fake_mapping_data.size();
Vladimir Marko7624d252014-05-02 14:40:15 +010079 OatQuickMethodHeader method_header(mapping_table_offset, vmap_table_offset,
80 4 * kPointerSize, 0u, 0u, code_size);
Vladimir Marko8a630572014-04-09 18:45:35 +010081 fake_header_code_and_maps_.resize(sizeof(method_header));
82 memcpy(&fake_header_code_and_maps_[0], &method_header, sizeof(method_header));
83 fake_header_code_and_maps_.insert(fake_header_code_and_maps_.begin(),
84 fake_vmap_table_data.begin(), fake_vmap_table_data.end());
85 fake_header_code_and_maps_.insert(fake_header_code_and_maps_.begin(),
86 fake_mapping_data.begin(), fake_mapping_data.end());
87 fake_header_code_and_maps_.insert(fake_header_code_and_maps_.end(),
88 fake_code_.begin(), fake_code_.end());
89
90 // NOTE: Don't align the code (it will not be executed) but check that the Thumb2
91 // adjustment will be a NOP, see ArtMethod::EntryPointToCodePointer().
92 CHECK_EQ(mapping_table_offset & 1u, 0u);
93 const uint8_t* code_ptr = &fake_header_code_and_maps_[mapping_table_offset];
94
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -070095 method_f_ = my_klass_->FindVirtualMethod("f", "()I");
96 ASSERT_TRUE(method_f_ != NULL);
Vladimir Marko8a630572014-04-09 18:45:35 +010097 method_f_->SetEntryPointFromQuickCompiledCode(code_ptr);
Ian Rogers5a6220c2012-09-24 10:52:10 -070098 method_f_->SetNativeGcMap(&fake_gc_map_[0]);
Brian Carlstrom33f741e2011-10-03 11:24:05 -070099
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -0700100 method_g_ = my_klass_->FindVirtualMethod("g", "(I)V");
101 ASSERT_TRUE(method_g_ != NULL);
Vladimir Marko8a630572014-04-09 18:45:35 +0100102 method_g_->SetEntryPointFromQuickCompiledCode(code_ptr);
Ian Rogers5a6220c2012-09-24 10:52:10 -0700103 method_g_->SetNativeGcMap(&fake_gc_map_[0]);
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -0700104 }
105
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700106 const DexFile* dex_;
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -0700107
Brian Carlstrom3320cf42011-10-04 14:58:28 -0700108 std::vector<uint8_t> fake_code_;
Vladimir Marko1e6cb632013-11-28 16:27:29 +0000109 Leb128EncodingVector fake_mapping_data_;
110 Leb128EncodingVector fake_vmap_table_data_;
Ian Rogers5a6220c2012-09-24 10:52:10 -0700111 std::vector<uint8_t> fake_gc_map_;
Vladimir Marko8a630572014-04-09 18:45:35 +0100112 std::vector<uint8_t> fake_header_code_and_maps_;
Brian Carlstrom3320cf42011-10-04 14:58:28 -0700113
Brian Carlstromea46f952013-07-30 01:26:50 -0700114 mirror::ArtMethod* method_f_;
115 mirror::ArtMethod* method_g_;
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -0700116
117 private:
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800118 mirror::Class* my_klass_;
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700119};
120
Shih-wei Liao1a18c8c2011-08-14 17:47:36 -0700121TEST_F(ExceptionTest, FindCatchHandler) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800122 ScopedObjectAccess soa(Thread::Current());
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700123 const DexFile::CodeItem* code_item = dex_->GetCodeItem(method_f_->GetCodeItemOffset());
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700124
125 ASSERT_TRUE(code_item != NULL);
126
127 ASSERT_EQ(2u, code_item->tries_size_);
Ian Rogersd81871c2011-10-03 13:57:23 -0700128 ASSERT_NE(0u, code_item->insns_size_in_code_units_);
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700129
Elliott Hughes7b9d9962012-04-20 18:48:18 -0700130 const DexFile::TryItem *t0, *t1;
Ian Rogers0571d352011-11-03 19:51:38 -0700131 t0 = dex_->GetTryItems(*code_item, 0);
132 t1 = dex_->GetTryItems(*code_item, 1);
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700133 EXPECT_LE(t0->start_addr_, t1->start_addr_);
Ian Rogers0571d352011-11-03 19:51:38 -0700134 {
135 CatchHandlerIterator iter(*code_item, 4 /* Dex PC in the first try block */);
136 EXPECT_STREQ("Ljava/io/IOException;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex()));
137 ASSERT_TRUE(iter.HasNext());
138 iter.Next();
139 EXPECT_STREQ("Ljava/lang/Exception;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex()));
140 ASSERT_TRUE(iter.HasNext());
141 iter.Next();
142 EXPECT_FALSE(iter.HasNext());
143 }
144 {
145 CatchHandlerIterator iter(*code_item, 8 /* Dex PC in the second try block */);
146 EXPECT_STREQ("Ljava/io/IOException;", dex_->StringByTypeIdx(iter.GetHandlerTypeIndex()));
147 ASSERT_TRUE(iter.HasNext());
148 iter.Next();
149 EXPECT_FALSE(iter.HasNext());
150 }
151 {
152 CatchHandlerIterator iter(*code_item, 11 /* Dex PC not in any try block */);
153 EXPECT_FALSE(iter.HasNext());
154 }
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700155}
156
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700157TEST_F(ExceptionTest, StackTraceElement) {
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700158 Thread* thread = Thread::Current();
Ian Rogers0fb6bb52012-08-14 15:10:19 -0700159 thread->TransitionFromSuspendedToRunnable();
Brian Carlstrombd86bcc2013-03-10 20:26:16 -0700160 bool started = runtime_->Start();
161 CHECK(started);
Ian Rogers00f7d0e2012-07-19 15:28:27 -0700162 JNIEnv* env = thread->GetJniEnv();
163 ScopedObjectAccess soa(env);
Brian Carlstrom25c33252011-09-18 15:58:35 -0700164
Elliott Hughes3b6baaa2011-10-14 19:13:56 -0700165 std::vector<uintptr_t> fake_stack;
Brian Carlstromba150c32013-08-27 17:31:03 -0700166 ASSERT_EQ(kStackAlignment, 16U);
Andreas Gampecfa5c482014-03-12 14:11:40 -0700167 // ASSERT_EQ(sizeof(uintptr_t), sizeof(uint32_t));
Ian Rogers0cfe1fb2011-08-26 03:29:44 -0700168
Ian Rogersef7d42f2014-01-06 12:55:46 -0800169 if (!kUsePortableCompiler) {
170 // Create two fake stack frames with mapping data created in SetUp. We map offset 3 in the code
171 // to dex pc 3.
172 const uint32_t dex_pc = 3;
Ian Rogersf57c47c2011-10-06 00:06:17 -0700173
Ian Rogersef7d42f2014-01-06 12:55:46 -0800174 // Create/push fake 16byte stack frame for method g
175 fake_stack.push_back(reinterpret_cast<uintptr_t>(method_g_));
176 fake_stack.push_back(0);
177 fake_stack.push_back(0);
178 fake_stack.push_back(method_f_->ToNativePc(dex_pc)); // return pc
Ian Rogers0cfe1fb2011-08-26 03:29:44 -0700179
Ian Rogersef7d42f2014-01-06 12:55:46 -0800180 // Create/push fake 16byte stack frame for method f
181 fake_stack.push_back(reinterpret_cast<uintptr_t>(method_f_));
182 fake_stack.push_back(0);
183 fake_stack.push_back(0);
184 fake_stack.push_back(0xEBAD6070); // return pc
Ian Rogers0cfe1fb2011-08-26 03:29:44 -0700185
Ian Rogersef7d42f2014-01-06 12:55:46 -0800186 // Pull Method* of NULL to terminate the trace
187 fake_stack.push_back(0);
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700188
Ian Rogersef7d42f2014-01-06 12:55:46 -0800189 // Push null values which will become null incoming arguments.
190 fake_stack.push_back(0);
191 fake_stack.push_back(0);
192 fake_stack.push_back(0);
Mathieu Chartier342a2622012-06-28 12:04:52 -0700193
Ian Rogersef7d42f2014-01-06 12:55:46 -0800194 // Set up thread to appear as if we called out of method_g_ at pc dex 3
Andreas Gampecf4035a2014-05-28 22:43:01 -0700195 thread->SetTopOfStack(
196 reinterpret_cast<StackReference<mirror::ArtMethod>*>(&fake_stack[0]),
197 method_g_->ToNativePc(dex_pc)); // return pc
Ian Rogersef7d42f2014-01-06 12:55:46 -0800198 } else {
199 // Create/push fake 20-byte shadow frame for method g
200 fake_stack.push_back(0);
201 fake_stack.push_back(0);
202 fake_stack.push_back(reinterpret_cast<uintptr_t>(method_g_));
203 fake_stack.push_back(3);
204 fake_stack.push_back(0);
Shih-wei Liao02f01fe2012-03-26 12:58:11 -0700205
Ian Rogersef7d42f2014-01-06 12:55:46 -0800206 // Create/push fake 20-byte shadow frame for method f
207 fake_stack.push_back(0);
208 fake_stack.push_back(0);
209 fake_stack.push_back(reinterpret_cast<uintptr_t>(method_f_));
210 fake_stack.push_back(3);
211 fake_stack.push_back(0);
Shih-wei Liao02f01fe2012-03-26 12:58:11 -0700212
Ian Rogersef7d42f2014-01-06 12:55:46 -0800213 thread->PushShadowFrame(reinterpret_cast<ShadowFrame*>(&fake_stack[5]));
214 thread->PushShadowFrame(reinterpret_cast<ShadowFrame*>(&fake_stack[0]));
215 }
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700216
Sebastien Hertzee1d79a2014-02-21 15:46:30 +0100217 jobject internal = thread->CreateInternalStackTrace<false>(soa);
Brian Carlstrom26736442012-02-16 18:24:26 -0800218 ASSERT_TRUE(internal != NULL);
Ian Rogers53b8b092014-03-13 23:45:53 -0700219 jobjectArray ste_array = Thread::InternalStackTraceToStackTraceElementArray(soa, internal);
Brian Carlstrom26736442012-02-16 18:24:26 -0800220 ASSERT_TRUE(ste_array != NULL);
Ian Rogers2dd0e2c2013-01-24 12:42:14 -0800221 mirror::ObjectArray<mirror::StackTraceElement>* trace_array =
222 soa.Decode<mirror::ObjectArray<mirror::StackTraceElement>*>(ste_array);
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700223
Brian Carlstrom26736442012-02-16 18:24:26 -0800224 ASSERT_TRUE(trace_array != NULL);
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700225 ASSERT_TRUE(trace_array->Get(0) != NULL);
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700226 EXPECT_STREQ("ExceptionHandle",
Shih-wei Liao44175362011-08-28 16:59:17 -0700227 trace_array->Get(0)->GetDeclaringClass()->ToModifiedUtf8().c_str());
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700228 EXPECT_STREQ("ExceptionHandle.java", trace_array->Get(0)->GetFileName()->ToModifiedUtf8().c_str());
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700229 EXPECT_STREQ("g", trace_array->Get(0)->GetMethodName()->ToModifiedUtf8().c_str());
Brian Carlstrom06ed7392012-01-31 01:25:48 -0800230 EXPECT_EQ(37, trace_array->Get(0)->GetLineNumber());
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700231
232 ASSERT_TRUE(trace_array->Get(1) != NULL);
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700233 EXPECT_STREQ("ExceptionHandle",
Shih-wei Liao44175362011-08-28 16:59:17 -0700234 trace_array->Get(1)->GetDeclaringClass()->ToModifiedUtf8().c_str());
Brian Carlstrom33f741e2011-10-03 11:24:05 -0700235 EXPECT_STREQ("ExceptionHandle.java", trace_array->Get(1)->GetFileName()->ToModifiedUtf8().c_str());
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700236 EXPECT_STREQ("f", trace_array->Get(1)->GetMethodName()->ToModifiedUtf8().c_str());
Brian Carlstrom06ed7392012-01-31 01:25:48 -0800237 EXPECT_EQ(22, trace_array->Get(1)->GetLineNumber());
Elliott Hughesa43e0932012-03-27 18:35:33 -0700238
Ian Rogersc928de92013-02-27 14:30:44 -0800239#if !defined(ART_USE_PORTABLE_COMPILER)
Brian Carlstrom7934ac22013-07-26 10:54:15 -0700240 thread->SetTopOfStack(NULL, 0); // Disarm the assertion that no code is running when we detach.
Ian Rogers0399dde2012-06-06 17:09:28 -0700241#else
242 thread->PopShadowFrame();
243 thread->PopShadowFrame();
Elliott Hughesa43e0932012-03-27 18:35:33 -0700244#endif
Shih-wei Liao55df06b2011-08-26 14:39:27 -0700245}
246
Shih-wei Liao2fb97532011-08-11 16:17:23 -0700247} // namespace art