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 "method_verifier.h"
18
19 #include <stdio.h>
20
21 #include <memory>
22
23 #include "android-base/strings.h"
24 #include "base/metrics/metrics_test.h"
25 #include "base/utils.h"
26 #include "class_linker-inl.h"
27 #include "class_verifier.h"
28 #include "common_runtime_test.h"
29 #include "dex/dex_file-inl.h"
30 #include "scoped_thread_state_change-inl.h"
31 #include "verifier_enums.h"
32
33 namespace art {
34 namespace verifier {
35
36 using metrics::test::CounterValue;
37
38 class MethodVerifierTest : public CommonRuntimeTest {
39 protected:
VerifyClass(const std::string & descriptor)40 void VerifyClass(const std::string& descriptor)
41 REQUIRES_SHARED(Locks::mutator_lock_) {
42 ASSERT_FALSE(descriptor.empty());
43 Thread* self = Thread::Current();
44 ObjPtr<mirror::Class> klass = class_linker_->FindSystemClass(self, descriptor.c_str());
45
46 // Verify the class
47 std::string error_msg;
48 FailureKind failure = ClassVerifier::VerifyClass(self,
49 /* verifier_deps= */ nullptr,
50 klass,
51 nullptr,
52 true,
53 HardFailLogMode::kLogWarning,
54 /* api_level= */ 0u,
55 &error_msg);
56
57 if (android::base::StartsWith(descriptor, "Ljava/lang/invoke")) {
58 ASSERT_TRUE(failure == FailureKind::kSoftFailure ||
59 failure == FailureKind::kNoFailure) << error_msg;
60
61 } else {
62 ASSERT_TRUE(failure == FailureKind::kNoFailure) << error_msg;
63 }
64 }
65
VerifyDexFile(const DexFile & dex)66 void VerifyDexFile(const DexFile& dex)
67 REQUIRES_SHARED(Locks::mutator_lock_) {
68 // Verify all the classes defined in this file
69 for (size_t i = 0; i < dex.NumClassDefs(); i++) {
70 const dex::ClassDef& class_def = dex.GetClassDef(i);
71 const char* descriptor = dex.GetClassDescriptor(class_def);
72 VerifyClass(descriptor);
73 }
74 }
75 };
76
TEST_F(MethodVerifierTest,LibCore)77 TEST_F(MethodVerifierTest, LibCore) {
78 ScopedObjectAccess soa(Thread::Current());
79 ASSERT_TRUE(java_lang_dex_file_ != nullptr);
80 VerifyDexFile(*java_lang_dex_file_);
81 }
82
83 // Make sure verification time metrics are collected.
TEST_F(MethodVerifierTest,VerificationTimeMetrics)84 TEST_F(MethodVerifierTest, VerificationTimeMetrics) {
85 ScopedObjectAccess soa(Thread::Current());
86 ASSERT_TRUE(java_lang_dex_file_ != nullptr);
87 auto* class_verification_total_time = GetMetrics()->ClassVerificationTotalTime();
88 auto* class_verification_count = GetMetrics()->ClassVerificationCount();
89 const uint64_t original_time = CounterValue(*class_verification_total_time);
90 const uint64_t original_count = CounterValue(*class_verification_count);
91 VerifyDexFile(*java_lang_dex_file_);
92 ASSERT_GT(CounterValue(*class_verification_total_time), original_time);
93 ASSERT_GT(CounterValue(*class_verification_count), original_count);
94 }
95
96 } // namespace verifier
97 } // namespace art
98