1 /*
2 * Copyright (C) 2017 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 "source_transform.h"
18
19 #include <inttypes.h>
20
21 #include <memory>
22
23 #include <android-base/logging.h>
24
25 #include "dex/code_item_accessors-inl.h"
26 #include "dex/art_dex_file_loader.h"
27 #include "dex/class_accessor-inl.h"
28 #include "dex/dex_file.h"
29 #include "dex/dex_file_loader.h"
30 #include "dex/dex_instruction.h"
31
32 namespace art {
33 namespace Test983SourceTransformVerify {
34
35 // The hook we are using.
VerifyClassData(jint class_data_len,const unsigned char * class_data)36 void VerifyClassData(jint class_data_len, const unsigned char* class_data) {
37 // Due to b/72402467 the class_data_len might just be an estimate.
38 CHECK_GE(static_cast<size_t>(class_data_len), sizeof(DexFile::Header));
39 const DexFile::Header* header = reinterpret_cast<const DexFile::Header*>(class_data);
40 uint32_t header_file_size = header->file_size_;
41 CHECK_LE(static_cast<jint>(header_file_size), class_data_len);
42 class_data_len = static_cast<jint>(header_file_size);
43
44 const ArtDexFileLoader dex_file_loader;
45 std::string error;
46 std::unique_ptr<const DexFile> dex(dex_file_loader.Open(class_data,
47 class_data_len,
48 "fake_location.dex",
49 /*location_checksum*/ 0,
50 /*oat_dex_file*/ nullptr,
51 /*verify*/ true,
52 /*verify_checksum*/ true,
53 &error));
54 CHECK(dex.get() != nullptr) << "Failed to verify dex: " << error;
55
56 for (ClassAccessor accessor : dex->GetClasses()) {
57 for (const ClassAccessor::Method& method : accessor.GetMethods()) {
58 for (const DexInstructionPcPair& pair : method.GetInstructions()) {
59 const Instruction& inst = pair.Inst();
60 int forbidden_flags = (Instruction::kVerifyError | Instruction::kVerifyRuntimeOnly);
61 if ((inst.GetVerifyExtraFlags() & forbidden_flags) != 0) {
62 LOG(FATAL) << "Unexpected instruction found in " << dex->PrettyMethod(method.GetIndex())
63 << " [Dex PC: 0x" << std::hex << pair.DexPc() << std::dec << "] : "
64 << inst.DumpString(dex.get()) << std::endl;
65 }
66 }
67 }
68 }
69 }
70
71 } // namespace Test983SourceTransformVerify
72 } // namespace art
73