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 <string>
18 #include <vector>
19
20 #include "common_runtime_test.h"
21
22 #include "runtime/exec_utils.h"
23 #include "runtime/oat_file.h"
24 #include "runtime/os.h"
25
26 namespace art {
27
28 static const char* kDexDiagContains = "--contains=core.vdex";
29 static const char* kDexDiagContainsFails = "--contains=anything_other_than_core.vdex";
30 static const char* kDexDiagHelp = "--help";
31 static const char* kDexDiagVerbose = "--verbose";
32 static const char* kDexDiagBinaryName = "dexdiag";
33
34 class DexDiagTest : public CommonRuntimeTest {
35 protected:
SetUp()36 virtual void SetUp() {
37 CommonRuntimeTest::SetUp();
38 }
39
40 // Path to the dexdiag(d?)[32|64] binary.
GetDexDiagFilePath()41 std::string GetDexDiagFilePath() {
42 std::string root = GetTestAndroidRoot();
43
44 root += "/bin/";
45 root += kDexDiagBinaryName;
46
47 std::string root32 = root + "32";
48 // If we have both a 32-bit and a 64-bit build, the 32-bit file will have a 32 suffix.
49 if (OS::FileExists(root32.c_str()) && !Is64BitInstructionSet(kRuntimeISA)) {
50 return root32;
51 } else {
52 // This is a 64-bit build or only a single build exists.
53 return root;
54 }
55 }
56
OpenOatAndVdexFiles()57 std::unique_ptr<OatFile> OpenOatAndVdexFiles() {
58 // Open the core.oat file.
59 // This is a little convoluted because we have to
60 // get the location of the default core image (.../framework/core.oat),
61 // find it in the right architecture subdirectory (.../framework/arm/core.oat),
62 // Then, opening the oat file has the side-effect of opening the corresponding
63 // vdex file (.../framework/arm/core.vdex).
64 const std::string default_location = GetCoreOatLocation();
65 EXPECT_TRUE(!default_location.empty());
66 std::string oat_location = GetSystemImageFilename(default_location.c_str(), kRuntimeISA);
67 EXPECT_TRUE(!oat_location.empty());
68 std::cout << "==" << oat_location << std::endl;
69 std::string error_msg;
70 std::unique_ptr<OatFile> oat(OatFile::Open(oat_location.c_str(),
71 oat_location.c_str(),
72 nullptr,
73 nullptr,
74 false,
75 /*low_4gb*/false,
76 nullptr,
77 &error_msg));
78 EXPECT_TRUE(oat != nullptr) << error_msg;
79 return oat;
80 }
81
82 // Run dexdiag with a custom boot image location.
Exec(pid_t this_pid,const std::vector<std::string> & args,std::string * error_msg)83 bool Exec(pid_t this_pid, const std::vector<std::string>& args, std::string* error_msg) {
84 // Invoke 'dexdiag' against the current process.
85 // This should succeed because we have a runtime and so it should
86 // be able to map in the boot.art and do a diff for it.
87 std::vector<std::string> exec_argv;
88
89 // Build the command line "dexdiag <args> this_pid".
90 std::string executable_path = GetDexDiagFilePath();
91 EXPECT_TRUE(OS::FileExists(executable_path.c_str())) << executable_path
92 << " should be a valid file path";
93 exec_argv.push_back(executable_path);
94 for (const auto& arg : args) {
95 exec_argv.push_back(arg);
96 }
97 exec_argv.push_back(std::to_string(this_pid));
98
99 return ::art::Exec(exec_argv, error_msg);
100 }
101 };
102
103 // We can't run these tests on the host, as they will fail when trying to open
104 // /proc/pid/pagemap.
105 // On the target, we invoke 'dexdiag' against the current process.
106 // This should succeed because we have a runtime and so dexdiag should
107 // be able to find the map for, e.g., boot.vdex and friends.
TEST_F(DexDiagTest,DexDiagHelpTest)108 TEST_F(DexDiagTest, DexDiagHelpTest) {
109 // TODO: test the resulting output.
110 std::string error_msg;
111 ASSERT_TRUE(Exec(getpid(), { kDexDiagHelp }, &error_msg)) << "Failed to execute -- because: "
112 << error_msg;
113 }
114
115 #if defined (ART_TARGET)
TEST_F(DexDiagTest,DexDiagContainsTest)116 TEST_F(DexDiagTest, DexDiagContainsTest) {
117 #else
118 TEST_F(DexDiagTest, DISABLED_DexDiagContainsTest) {
119 #endif
120 std::unique_ptr<OatFile> oat = OpenOatAndVdexFiles();
121 // TODO: test the resulting output.
122 std::string error_msg;
123 ASSERT_TRUE(Exec(getpid(), { kDexDiagContains }, &error_msg)) << "Failed to execute -- because: "
124 << error_msg;
125 }
126
127 #if defined (ART_TARGET)
128 TEST_F(DexDiagTest, DexDiagContainsFailsTest) {
129 #else
130 TEST_F(DexDiagTest, DISABLED_DexDiagContainsFailsTest) {
131 #endif
132 std::unique_ptr<OatFile> oat = OpenOatAndVdexFiles();
133 // TODO: test the resulting output.
134 std::string error_msg;
135 ASSERT_FALSE(Exec(getpid(), { kDexDiagContainsFails }, &error_msg))
136 << "Failed to execute -- because: "
137 << error_msg;
138 }
139
140 #if defined (ART_TARGET)
141 TEST_F(DexDiagTest, DexDiagVerboseTest) {
142 #else
143 TEST_F(DexDiagTest, DISABLED_DexDiagVerboseTest) {
144 #endif
145 // TODO: test the resulting output.
146 std::unique_ptr<OatFile> oat = OpenOatAndVdexFiles();
147 std::string error_msg;
148 ASSERT_TRUE(Exec(getpid(), { kDexDiagVerbose }, &error_msg)) << "Failed to execute -- because: "
149 << error_msg;
150 }
151
152 } // namespace art
153