2 * Copyright (C) 2012 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 #ifndef __TEST_UTILS_H
18 #define __TEST_UTILS_H
22 #include <sys/types.h>
30 #include <android-base/file.h>
31 #include <android-base/stringprintf.h>
33 #include "private/ScopeGuard.h"
36 #define PATH_TO_SYSTEM_LIB "/system/lib64/"
38 #define PATH_TO_SYSTEM_LIB "/system/lib/"
41 #if defined(__BIONIC__)
42 #define KNOWN_FAILURE_ON_BIONIC(x) xfail_ ## x
44 #define KNOWN_FAILURE_ON_BIONIC(x) x
47 #if defined(__linux__)
65 static bool parse_maps(std::vector<map_record>* maps) {
66 FILE* fp = fopen("/proc/self/maps", "re");
71 auto fp_guard = make_scope_guard([&]() {
76 while (fgets(line, sizeof(line), fp) != nullptr) {
78 uint32_t dev_major, dev_minor;
80 char prot[5]; // sizeof("rwxp")
81 if (sscanf(line, "%" SCNxPTR "-%" SCNxPTR " %4s %" SCNxPTR " %x:%x %lu %n",
82 &record.addr_start, &record.addr_end, prot, &record.offset,
83 &dev_major, &dev_minor, &record.inode, &path_offset) == 7) {
86 record.perms |= PROT_READ;
89 record.perms |= PROT_WRITE;
92 record.perms |= PROT_EXEC;
95 // TODO: parse shared/private?
97 record.device = makedev(dev_major, dev_minor);
98 record.pathname = line + path_offset;
99 if (!record.pathname.empty() && record.pathname.back() == '\n') {
100 record.pathname.pop_back();
102 maps->push_back(record);
110 extern "C" pid_t gettid();
114 static inline void WaitUntilThreadSleep(std::atomic<pid_t>& tid) {
118 std::string filename = android::base::StringPrintf("/proc/%d/stat", tid.load());
119 std::regex regex {R"(\s+S\s+)"};
123 ASSERT_TRUE(android::base::ReadFileToString(filename, &content));
124 if (std::regex_search(content, regex)) {
131 static inline void AssertChildExited(int pid, int expected_exit_status) {
133 ASSERT_EQ(pid, waitpid(pid, &status, 0));
134 if (expected_exit_status >= 0) {
135 ASSERT_TRUE(WIFEXITED(status));
136 ASSERT_EQ(expected_exit_status, WEXITSTATUS(status));
138 ASSERT_TRUE(WIFSIGNALED(status));
139 ASSERT_EQ(-expected_exit_status, WTERMSIG(status));
143 // The absolute path to the executable
144 const std::string& get_executable_path();
146 // Access to argc/argv/envp
151 // ExecTestHelper is only used in bionic and glibc tests.
153 class ExecTestHelper {
156 return const_cast<char**>(args_.data());
159 return const_cast<char**>(env_.data());
162 void SetArgs(const std::vector<const char*> args) {
165 void SetEnv(const std::vector<const char*> env) {
169 void Run(const std::function<void()>& child_fn, int expected_exit_status,
170 const char* expected_output) {
172 ASSERT_NE(pipe(fds), -1);
180 dup2(fds[1], STDOUT_FILENO);
181 dup2(fds[1], STDERR_FILENO);
182 if (fds[1] != STDOUT_FILENO && fds[1] != STDERR_FILENO) close(fds[1]);
192 while ((bytes_read = TEMP_FAILURE_RETRY(read(fds[0], buf, sizeof(buf)))) > 0) {
193 output.append(buf, bytes_read);
197 AssertChildExited(pid, expected_exit_status);
198 if (expected_output != nullptr) {
199 ASSERT_EQ(expected_output, output);
204 std::vector<const char*> args_;
205 std::vector<const char*> env_;