1 /*
2 * Copyright (C) 2022 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include "utils.h"
30
31 #include <string.h>
32 #include <syscall.h>
33
34 #include <string>
35
36 #include <android-base/properties.h>
37
RunGwpAsanTest(const char * test_name)38 void RunGwpAsanTest(const char* test_name) {
39 ExecTestHelper eh;
40 eh.SetEnv({"GWP_ASAN_SAMPLE_RATE=1", "GWP_ASAN_PROCESS_SAMPLING=1", "GWP_ASAN_MAX_ALLOCS=40000",
41 nullptr});
42 std::string filter_arg = "--gtest_filter=";
43 filter_arg += test_name;
44 std::string exec(testing::internal::GetArgvs()[0]);
45 eh.SetArgs({exec.c_str(), "--gtest_also_run_disabled_tests", filter_arg.c_str(), nullptr});
46 eh.Run([&]() { execve(exec.c_str(), eh.GetArgs(), eh.GetEnv()); },
47 /* expected_exit_status */ 0,
48 // |expected_output_regex|, ensure at least one test ran:
49 R"(\[ PASSED \] [1-9][0-9]* test)");
50 }
51
RunSubtestNoEnv(const char * test_name)52 void RunSubtestNoEnv(const char* test_name) {
53 ExecTestHelper eh;
54 std::string filter_arg = "--gtest_filter=";
55 filter_arg += test_name;
56 std::string exec(testing::internal::GetArgvs()[0]);
57 eh.SetArgs({exec.c_str(), "--gtest_also_run_disabled_tests", filter_arg.c_str(), nullptr});
58 eh.Run([&]() { execve(exec.c_str(), eh.GetArgs(), eh.GetEnv()); },
59 /* expected_exit_status */ 0,
60 // |expected_output_regex|, ensure at least one test ran:
61 R"(\[ PASSED \] [1-9]+0? test)");
62 }
63
IsLowRamDevice()64 bool IsLowRamDevice() {
65 return android::base::GetBoolProperty("ro.config.low_ram", false) ||
66 (android::base::GetBoolProperty("ro.debuggable", false) &&
67 android::base::GetBoolProperty("debug.force_low_ram", false));
68 }
69
70 #if defined(__GLIBC__) && __GLIBC_MINOR__ < 30
gettid()71 pid_t gettid() {
72 return syscall(__NR_gettid);
73 }
74 #endif
75
PrintTo(const Errno & e,std::ostream * os)76 void PrintTo(const Errno& e, std::ostream* os) {
77 // Prefer EINVAL or whatever, but fall back to strerror() to print
78 // "Unknown error 666" for bogus values. Not that I've ever seen one,
79 // but we shouldn't be looking at an assertion failure unless something
80 // weird has happened!
81 #if defined(__BIONIC__)
82 const char* errno_name = strerrorname_np(e.errno_);
83 if (errno_name != nullptr) {
84 *os << errno_name;
85 } else
86 #endif
87 {
88 *os << strerror(e.errno_);
89 }
90 }
91
NanoTime()92 int64_t NanoTime() {
93 auto t = std::chrono::time_point_cast<std::chrono::nanoseconds>(std::chrono::steady_clock::now());
94 return t.time_since_epoch().count();
95 }
96
operator ==(const Errno & lhs,const Errno & rhs)97 bool operator==(const Errno& lhs, const Errno& rhs) {
98 return lhs.errno_ == rhs.errno_;
99 }
100