1 /*
2 * Copyright (C) 2015 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 <gtest/gtest.h>
18
19 #include <libgen.h>
20
21 #include <memory>
22
23 #include <android-base/file.h>
24 #include <android-base/logging.h>
25 #include <android-base/strings.h>
26
27 #if defined(__ANDROID__)
28 #include <android-base/properties.h>
29 #endif
30
31 #include "command.h"
32 #include "environment.h"
33 #include "get_test_data.h"
34 #include "read_elf.h"
35 #include "test_util.h"
36 #include "utils.h"
37 #include "workload.h"
38
39 using namespace simpleperf;
40
41 static std::string testdata_dir;
42
43 #if defined(__ANDROID__)
44
45 class ScopedEnablingPerf {
46 public:
ScopedEnablingPerf()47 ScopedEnablingPerf() {
48 prop_value_ = android::base::GetProperty("security.perf_harden", "");
49 SetProp("0");
50 }
51
~ScopedEnablingPerf()52 ~ScopedEnablingPerf() {
53 if (!prop_value_.empty()) {
54 SetProp(prop_value_);
55 }
56 }
57
58 private:
SetProp(const std::string & value)59 void SetProp(const std::string& value) {
60 android::base::SetProperty("security.perf_harden", value);
61
62 // Sleep one second to wait for security.perf_harden changing
63 // perf_event_allow_path.
64 sleep(1);
65 }
66
67 std::string prop_value_;
68 };
69
70 #endif // defined(__ANDROID__)
71
main(int argc,char ** argv)72 int main(int argc, char** argv) {
73 RegisterAllCommands();
74 // To test profiling apps, simpleperf_unit_test needs to copy itself to the app's directory,
75 // and run the binary as simpleperf executable.
76 if (android::base::Basename(argv[0]) == "simpleperf") {
77 return RunSimpleperfCmd(argc, argv) ? 0 : 1;
78 }
79
80 testing::InitGoogleTest(&argc, argv);
81 android::base::InitLogging(argv, android::base::StderrLogger);
82 android::base::LogSeverity log_severity = android::base::WARNING;
83 testdata_dir = std::string(dirname(argv[0])) + "/testdata";
84 for (int i = 1; i < argc; ++i) {
85 if (strcmp(argv[i], "-t") == 0 && i + 1 < argc) {
86 testdata_dir = argv[i + 1];
87 i++;
88 } else if (strcmp(argv[i], "--log") == 0) {
89 if (i + 1 < argc) {
90 ++i;
91 if (!GetLogSeverity(argv[i], &log_severity)) {
92 LOG(ERROR) << "Unknown log severity: " << argv[i];
93 return 1;
94 }
95 } else {
96 LOG(ERROR) << "Missing argument for --log option.\n";
97 return 1;
98 }
99 }
100 }
101 android::base::ScopedLogSeverity severity(log_severity);
102
103 #if defined(__ANDROID__)
104 // A cts test is testing if perf_event_allow_path is 3, so restore perf_harden
105 // value after current test to not break that test.
106 ScopedEnablingPerf scoped_enabling_perf;
107 #endif
108
109 if (!::testing::GTEST_FLAG(list_tests)) {
110 if (!IsDir(testdata_dir)) {
111 LOG(ERROR) << "testdata wasn't found. Use \"" << argv[0] << " -t <testdata_dir>\"";
112 return 1;
113 }
114 }
115 if (!android::base::EndsWith(testdata_dir, OS_PATH_SEPARATOR)) {
116 testdata_dir += OS_PATH_SEPARATOR;
117 }
118 LOG(INFO) << "testdata is in " << testdata_dir;
119 return RUN_ALL_TESTS();
120 }
121
GetTestData(const std::string & filename)122 std::string GetTestData(const std::string& filename) {
123 return testdata_dir + filename;
124 }
125
GetTestDataDir()126 const std::string& GetTestDataDir() {
127 return testdata_dir;
128 }
129