unsigned int TestClient::GetPcRegisterId() {
if (m_pc_register != UINT_MAX)
return m_pc_register;
for (unsigned int register_id = 0;; register_id++) {
std::string message = formatv("qRegisterInfo{0:x-}", register_id).str();
std::string response;
if (!SendMessage(message, response)) {
GTEST_LOG_(ERROR) << "Unable to query register ID for PC register.";
return UINT_MAX;
}
auto elements_or_error = SplitPairList("GetPcRegisterId", response);
if (auto split_error = elements_or_error.takeError()) {
GTEST_LOG_(ERROR) << "GetPcRegisterId: Error splitting response: "
<< response;
return UINT_MAX;
}
auto elements = *elements_or_error;
if (elements["alt-name"] == "pc" || elements["generic"] == "pc") {
m_pc_register = register_id;
break;
}
}
return m_pc_register;
}
static bool check_unique(const std::string& config, const std::string& prefix) {
int retval = false;
std::string data;
if (!android::base::ReadFileToString(config, &data)) return retval;
const fs_path_config_from_file* pc =
reinterpret_cast<const fs_path_config_from_file*>(data.c_str());
size_t len = data.size();
std::vector<const char*> paths_tmp;
size_t entry_number = 0;
while (len > 0) {
uint16_t host_len = (len >= endof(pc, len)) ? pc->len : INT16_MAX;
if (host_len > len) {
GTEST_LOG_(WARNING) << config << ": truncated at entry " << entry_number << " ("
<< host_len << " > " << len << ")";
const std::string unknown("?");
GTEST_LOG_(WARNING)
<< config << ": entry[" << entry_number << "]={ "
<< "len=" << ((len >= endof(pc, len))
? android::base::StringPrintf("%" PRIu16, pc->len)
: unknown)
<< ", mode=" << ((len >= endof(pc, mode))
? android::base::StringPrintf("0%" PRIo16, pc->mode)
: unknown)
<< ", uid=" << ((len >= endof(pc, uid))
? android::base::StringPrintf("%" PRIu16, pc->uid)
: unknown)
<< ", gid=" << ((len >= endof(pc, gid))
? android::base::StringPrintf("%" PRIu16, pc->gid)
: unknown)
<< ", capabilities="
<< ((len >= endof(pc, capabilities))
? android::base::StringPrintf("0x%" PRIx64, pc->capabilities)
: unknown)
<< ", prefix="
<< ((len >= offsetof(fs_path_config_from_file, prefix))
? android::base::StringPrintf(
"\"%.*s...", (int)(len - offsetof(fs_path_config_from_file, prefix)),
pc->prefix)
: unknown)
<< " }";
retval = true;
break;
}
paths_tmp.push_back(pc->prefix);
pc = reinterpret_cast<const fs_path_config_from_file*>(reinterpret_cast<const char*>(pc) +
host_len);
len -= host_len;
++entry_number;
}
return check_unique(paths_tmp, config, prefix) || retval;
}
bool TestClient::SendMessage(StringRef message, std::string &response_string,
PacketResult expected_result) {
StringExtractorGDBRemote response;
GTEST_LOG_(INFO) << "Send Packet: " << message.str();
PacketResult result = SendPacketAndWaitForResponse(message, response, false);
response.GetEscapedBinaryData(response_string);
GTEST_LOG_(INFO) << "Read Packet: " << response_string;
if (result != expected_result) {
GTEST_LOG_(ERROR) << FormatFailedResult(message, result);
return false;
}
return true;
}
static bool check_unique(std::vector<const char*>& paths, const std::string& config_name,
const std::string& prefix) {
bool retval = false;
std::string alternate = "system/" + prefix;
for (size_t idx = 0; idx < paths.size(); ++idx) {
size_t second;
std::string path(paths[idx]);
// check if there are multiple identical paths
for (second = idx + 1; second < paths.size(); ++second) {
if (path == paths[second]) {
GTEST_LOG_(ERROR) << "duplicate paths in " << config_name << ": " << paths[idx];
retval = true;
break;
}
}
// check if path is <partition>/
if (android::base::StartsWith(path, prefix)) {
// rebuild path to be system/<partition>/... to check for alias
path = alternate + path.substr(prefix.size());
for (second = 0; second < paths.size(); ++second) {
if (path == paths[second]) {
GTEST_LOG_(ERROR) << "duplicate alias paths in " << config_name << ": "
<< paths[idx] << " and " << paths[second]
<< " (remove latter)";
retval = true;
break;
}
}
continue;
}
// check if path is system/<partition>/
if (android::base::StartsWith(path, alternate)) {
// rebuild path to be <partition>/... to check for alias
path = prefix + path.substr(alternate.size());
for (second = 0; second < paths.size(); ++second) {
if (path == paths[second]) break;
}
if (second >= paths.size()) {
GTEST_LOG_(ERROR) << "replace path in " << config_name << ": " << paths[idx]
<< " with " << path;
retval = true;
}
}
}
return retval;
}
TEST_F(DlExtRelroSharingTest, VerifyMemorySaving) {
if (geteuid() != 0) {
GTEST_LOG_(INFO) << "This test must be run as root.\n";
return;
}
TemporaryFile tf; // Use tf to get an unique filename.
ASSERT_NOERROR(close(tf.fd));
ASSERT_NO_FATAL_FAILURE(CreateRelroFile(LIBNAME, tf.filename));
int pipefd[2];
ASSERT_NOERROR(pipe(pipefd));
size_t without_sharing, with_sharing;
ASSERT_NO_FATAL_FAILURE(SpawnChildrenAndMeasurePss(LIBNAME, false, &without_sharing));
ASSERT_NO_FATAL_FAILURE(SpawnChildrenAndMeasurePss(LIBNAME, true, &with_sharing));
// We expect the sharing to save at least 10% of the total PSS. In practice
// it saves 40%+ for this test.
size_t expected_size = without_sharing - (without_sharing/10);
EXPECT_LT(with_sharing, expected_size);
// Use destructor of tf to close and unlink the file.
tf.fd = extinfo_.relro_fd;
}
// Starts capturing an output stream (stdout/stderr).
void CaptureStream(int fd, const char* stream_name, CapturedStream** stream) {
if (*stream != NULL) {
GTEST_LOG_(FATAL) << "Only one " << stream_name
<< " capturer can exist at a time.";
}
*stream = new CapturedStream(fd);
}
TEST(getauxval, unexpected_values) {
#if defined(GETAUXVAL_CAN_COMPILE)
ASSERT_EQ((unsigned long int) 0, getauxval(0xdeadbeef));
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
}
TEST(STDIO_TEST, fseek_ftell_unseekable) {
#if defined(__BIONIC__) // glibc has fopencookie instead.
auto read_fn = [](void*, char*, int) { return -1; };
FILE* fp = funopen(nullptr, read_fn, nullptr, nullptr, nullptr);
ASSERT_TRUE(fp != nullptr);
// Check that ftell balks on an unseekable FILE*.
errno = 0;
ASSERT_EQ(-1, ftell(fp));
ASSERT_EQ(ESPIPE, errno);
// SEEK_CUR is rewritten as SEEK_SET internally...
errno = 0;
ASSERT_EQ(-1, fseek(fp, 0, SEEK_CUR));
ASSERT_EQ(ESPIPE, errno);
// ...so it's worth testing the direct seek path too.
errno = 0;
ASSERT_EQ(-1, fseek(fp, 0, SEEK_SET));
ASSERT_EQ(ESPIPE, errno);
fclose(fp);
#else
GTEST_LOG_(INFO) << "glibc uses fopencookie instead.\n";
#endif
}
TEST(STDIO_TEST, funopen_seek) {
#if defined(__BIONIC__)
auto read_fn = [](void*, char*, int) { return -1; };
auto seek_fn = [](void*, fpos_t, int) -> fpos_t { return 0xfedcba12; };
auto seek64_fn = [](void*, fpos64_t, int) -> fpos64_t { return 0xfedcba12345678; };
FILE* fp = funopen(nullptr, read_fn, nullptr, seek_fn, nullptr);
ASSERT_TRUE(fp != nullptr);
fpos_t pos;
#if defined(__LP64__)
EXPECT_EQ(0, fgetpos(fp, &pos)) << strerror(errno);
EXPECT_EQ(0xfedcba12LL, pos);
#else
EXPECT_EQ(-1, fgetpos(fp, &pos)) << strerror(errno);
EXPECT_EQ(EOVERFLOW, errno);
#endif
FILE* fp64 = funopen64(nullptr, read_fn, nullptr, seek64_fn, nullptr);
ASSERT_TRUE(fp64 != nullptr);
fpos64_t pos64;
EXPECT_EQ(0, fgetpos64(fp64, &pos64)) << strerror(errno);
EXPECT_EQ(0xfedcba12345678, pos64);
#else
GTEST_LOG_(INFO) << "glibc uses fopencookie instead.\n";
#endif
}
TEST(pthread, pthread_setname_np__too_long) {
#if defined(__BIONIC__) // Not all build servers have a new enough glibc? TODO: remove when they're on gprecise.
ASSERT_EQ(ERANGE, pthread_setname_np(pthread_self(), "this name is far too long for linux"));
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(pthread, pthread_setname_np__self) {
#if defined(__BIONIC__) // Not all build servers have a new enough glibc? TODO: remove when they're on gprecise.
ASSERT_EQ(0, pthread_setname_np(pthread_self(), "short 1"));
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(pthread, pthread_cond_broadcast__preserves_condattr_flags) {
#if defined(__BIONIC__) // This tests a bionic implementation detail.
pthread_condattr_t attr;
pthread_condattr_init(&attr);
ASSERT_EQ(0, pthread_condattr_setclock(&attr, CLOCK_MONOTONIC));
ASSERT_EQ(0, pthread_condattr_setpshared(&attr, PTHREAD_PROCESS_SHARED));
pthread_cond_t cond_var;
ASSERT_EQ(0, pthread_cond_init(&cond_var, &attr));
ASSERT_EQ(0, pthread_cond_signal(&cond_var));
ASSERT_EQ(0, pthread_cond_broadcast(&cond_var));
attr = static_cast<pthread_condattr_t>(cond_var.value);
clockid_t clock;
ASSERT_EQ(0, pthread_condattr_getclock(&attr, &clock));
ASSERT_EQ(CLOCK_MONOTONIC, clock);
int pshared;
ASSERT_EQ(0, pthread_condattr_getpshared(&attr, &pshared));
ASSERT_EQ(PTHREAD_PROCESS_SHARED, pshared);
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(pthread, pthread_key_create_lots) {
#if defined(__BIONIC__) // glibc uses keys internally that its sysconf value doesn't account for.
// POSIX says PTHREAD_KEYS_MAX should be at least 128.
ASSERT_GE(PTHREAD_KEYS_MAX, 128);
int sysconf_max = sysconf(_SC_THREAD_KEYS_MAX);
// sysconf shouldn't return a smaller value.
ASSERT_GE(sysconf_max, PTHREAD_KEYS_MAX);
// We can allocate _SC_THREAD_KEYS_MAX keys.
sysconf_max -= 2; // (Except that gtest takes two for itself.)
std::vector<pthread_key_t> keys;
for (int i = 0; i < sysconf_max; ++i) {
pthread_key_t key;
// If this fails, it's likely that GLOBAL_INIT_THREAD_LOCAL_BUFFER_COUNT is wrong.
ASSERT_EQ(0, pthread_key_create(&key, NULL)) << i << " of " << sysconf_max;
keys.push_back(key);
}
// ...and that really is the maximum.
pthread_key_t key;
ASSERT_EQ(EAGAIN, pthread_key_create(&key, NULL));
// (Don't leak all those keys!)
for (size_t i = 0; i < keys.size(); ++i) {
ASSERT_EQ(0, pthread_key_delete(keys[i]));
}
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
bool TestClient::SetInferior(llvm::ArrayRef<std::string> inferior_args) {
std::stringstream command;
command << "A";
for (size_t i = 0; i < inferior_args.size(); i++) {
if (i > 0)
command << ',';
std::string hex_encoded = toHex(inferior_args[i]);
command << hex_encoded.size() << ',' << i << ',' << hex_encoded;
}
if (!SendMessage(command.str()))
return false;
if (!SendMessage("qLaunchSuccess"))
return false;
std::string response;
if (!SendMessage("qProcessInfo", response))
return false;
auto create_or_error = ProcessInfo::Create(response);
if (auto create_error = create_or_error.takeError()) {
GTEST_LOG_(ERROR) << toString(std::move(create_error));
return false;
}
m_process_info = *create_or_error;
return true;
}
TEST(properties, wait) {
#if defined(__BIONIC__)
LocalPropertyTestState pa;
ASSERT_TRUE(pa.valid);
unsigned int serial;
prop_info *pi;
pthread_t t;
int flag = 0;
ASSERT_EQ(0, __system_property_add("property", 8, "value1", 6));
serial = __system_property_wait_any(0);
pi = (prop_info *)__system_property_find("property");
ASSERT_NE((prop_info *)NULL, pi);
__system_property_update(pi, "value2", 6);
serial = __system_property_wait_any(serial);
ASSERT_EQ(0, pthread_create(&t, NULL, PropertyWaitHelperFn, &flag));
ASSERT_EQ(flag, 0);
serial = __system_property_wait_any(serial);
ASSERT_EQ(flag, 1);
void* result;
ASSERT_EQ(0, pthread_join(t, &result));
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(pthread, pthread_types_allow_four_bytes_alignment) {
#if defined(__BIONIC__)
// For binary compatibility with old version, we need to allow 4-byte aligned data for pthread types.
StrictAlignmentAllocator allocator;
pthread_mutex_t* mutex = reinterpret_cast<pthread_mutex_t*>(
allocator.allocate(sizeof(pthread_mutex_t), 4));
ASSERT_EQ(0, pthread_mutex_init(mutex, NULL));
ASSERT_EQ(0, pthread_mutex_lock(mutex));
ASSERT_EQ(0, pthread_mutex_unlock(mutex));
ASSERT_EQ(0, pthread_mutex_destroy(mutex));
pthread_cond_t* cond = reinterpret_cast<pthread_cond_t*>(
allocator.allocate(sizeof(pthread_cond_t), 4));
ASSERT_EQ(0, pthread_cond_init(cond, NULL));
ASSERT_EQ(0, pthread_cond_signal(cond));
ASSERT_EQ(0, pthread_cond_broadcast(cond));
ASSERT_EQ(0, pthread_cond_destroy(cond));
pthread_rwlock_t* rwlock = reinterpret_cast<pthread_rwlock_t*>(
allocator.allocate(sizeof(pthread_rwlock_t), 4));
ASSERT_EQ(0, pthread_rwlock_init(rwlock, NULL));
ASSERT_EQ(0, pthread_rwlock_rdlock(rwlock));
ASSERT_EQ(0, pthread_rwlock_unlock(rwlock));
ASSERT_EQ(0, pthread_rwlock_wrlock(rwlock));
ASSERT_EQ(0, pthread_rwlock_unlock(rwlock));
ASSERT_EQ(0, pthread_rwlock_destroy(rwlock));
#else
GTEST_LOG_(INFO) << "This test tests bionic implementation details.";
#endif
}
TEST(signal, sys_signame) {
#if defined(__BIONIC__)
ASSERT_TRUE(sys_signame[0] == NULL);
ASSERT_STREQ("HUP", sys_signame[SIGHUP]);
#else
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif
}
TEST(math, __isnormall) {
#if defined(__BIONIC__)
ASSERT_TRUE(__isnormall(123.0L));
ASSERT_FALSE(__isnormall(ldouble_subnormal()));
#else // __BIONIC__
GTEST_LOG_(INFO) << "glibc doesn't have __isnormall.\n";
#endif // __BIONIC__
}
TEST(math, __isnormalf) {
#if defined(__BIONIC__)
ASSERT_TRUE(__isnormalf(123.0f));
ASSERT_FALSE(__isnormalf(float_subnormal()));
#else // __BIONIC__
GTEST_LOG_(INFO) << "glibc doesn't have __isnormalf.\n";
#endif // __BIONIC__
}
TEST(math, __isfinitel) {
#if defined(__BIONIC__)
ASSERT_TRUE(__isfinitel(123.0f));
ASSERT_FALSE(__isfinitel(HUGE_VALL));
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(math, __isnormall) {
#if defined(__BIONIC__)
ASSERT_TRUE(__isnormall(123.0));
ASSERT_FALSE(__isnormall(double_subnormal()));
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
bool TestClient::StartDebugger() {
const ArchSpec &arch_spec = HostInfo::GetArchitecture();
Args args;
args.AppendArgument(LLDB_SERVER);
args.AppendArgument("gdbserver");
args.AppendArgument("--log-channels=gdb-remote packets");
args.AppendArgument("--reverse-connect");
std::string log_file_name = GenerateLogFileName(arch_spec);
if (log_file_name.size()) {
args.AppendArgument("--log-file=" + log_file_name);
}
Status error;
TCPSocket listen_socket(true, false);
error = listen_socket.Listen("127.0.0.1:0", 5);
if (error.Fail()) {
GTEST_LOG_(ERROR) << "Unable to open listen socket.";
return false;
}
char connect_remote_address[64];
snprintf(connect_remote_address, sizeof(connect_remote_address),
"localhost:%u", listen_socket.GetLocalPortNumber());
args.AppendArgument(connect_remote_address);
m_server_process_info.SetArchitecture(arch_spec);
m_server_process_info.SetArguments(args, true);
Status status = Host::LaunchProcess(m_server_process_info);
if (status.Fail()) {
GTEST_LOG_(ERROR)
<< formatv("Failure to launch lldb server: {0}.", status).str();
return false;
}
char connect_remote_uri[64];
snprintf(connect_remote_uri, sizeof(connect_remote_uri), "connect://%s",
connect_remote_address);
Socket *accept_socket;
listen_socket.Accept(accept_socket);
SetConnection(new ConnectionFileDescriptor(accept_socket));
SendAck(); // Send this as a handshake.
return true;
}
TEST(sys_random, getrandom_EFAULT) {
#if defined(HAVE_SYS_RANDOM)
errno = 0;
ASSERT_EQ(-1, getrandom(nullptr, 256, 0));
ASSERT_EQ(EFAULT, errno);
#else
GTEST_LOG_(INFO) << "This test requires a C library with <sys/random.h>.\n";
#endif
}
TEST(math, gammaf_r) {
#if defined(__BIONIC__)
int sign;
ASSERT_FLOAT_EQ(logf(24.0f), gammaf_r(5.0f, &sign));
ASSERT_EQ(1, sign);
#else // __BIONIC__
GTEST_LOG_(INFO) << "glibc doesn't have gammaf_r.\n";
#endif // __BIONIC__
}
TEST(libc_logging, lld_LLONG_MIN) {
#if defined(__BIONIC__)
char buf[BUFSIZ];
__libc_format_buffer(buf, sizeof(buf), "%lld", LLONG_MIN);
EXPECT_STREQ("-9223372036854775808", buf);
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
TEST(pty, bug_28979140) {
// This test is to test a kernel bug, which uses a lock free ring-buffer to
// pass data through a raw pty, but missing necessary memory barriers.
cpu_set_t cpus;
ASSERT_EQ(0, sched_getaffinity(0, sizeof(cpu_set_t), &cpus));
if (CPU_COUNT(&cpus) < 2) {
GTEST_LOG_(INFO) << "This test tests bug happens only on multiprocessors.";
return;
}
constexpr uint32_t TEST_DATA_COUNT = 200000;
// 1. Open raw pty.
int master;
int slave;
ASSERT_EQ(0, openpty(&master, &slave, nullptr, nullptr, nullptr));
termios tattr;
ASSERT_EQ(0, tcgetattr(slave, &tattr));
cfmakeraw(&tattr);
ASSERT_EQ(0, tcsetattr(slave, TCSADRAIN, &tattr));
// 2. Make master thread and slave thread running on different cpus:
// master thread uses first available cpu, and slave thread uses other cpus.
PtyReader_28979140_Arg arg;
arg.main_cpu_id = -1;
for (int i = 0; i < CPU_SETSIZE; i++) {
if (CPU_ISSET(i, &cpus)) {
arg.main_cpu_id = i;
break;
}
}
ASSERT_GE(arg.main_cpu_id, 0);
// 3. Create thread for slave reader.
pthread_t thread;
arg.slave_fd = slave;
arg.data_count = TEST_DATA_COUNT;
arg.matched = true;
ASSERT_EQ(0, pthread_create(&thread, nullptr,
reinterpret_cast<void*(*)(void*)>(PtyReader_28979140),
&arg));
CPU_ZERO(&cpus);
CPU_SET(arg.main_cpu_id, &cpus);
ASSERT_EQ(0, sched_setaffinity(0, sizeof(cpu_set_t), &cpus));
// 4. Send data to slave.
uint32_t counter = 0;
while (counter <= TEST_DATA_COUNT) {
ASSERT_TRUE(android::base::WriteFully(master, &counter, sizeof(counter)));
ASSERT_TRUE(arg.matched) << "failed at count = " << counter;
counter++;
}
ASSERT_EQ(0, pthread_join(thread, nullptr));
ASSERT_TRUE(arg.finished);
ASSERT_TRUE(arg.matched);
close(master);
}
TEST(libc_logging, d_INT_MIN) {
#if defined(__BIONIC__)
char buf[BUFSIZ];
__libc_format_buffer(buf, sizeof(buf), "%d", INT_MIN);
EXPECT_STREQ("-2147483648", buf);
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.\n";
#endif // __BIONIC__
}
bool TestClient::Continue(StringRef message) {
if (!m_process_info.hasValue()) {
GTEST_LOG_(ERROR) << "Continue() called before m_process_info initialized.";
return false;
}
std::string response;
if (!SendMessage(message, response))
return false;
auto creation = StopReply::Create(response, m_process_info->GetEndian());
if (auto create_error = creation.takeError()) {
GTEST_LOG_(ERROR) << toString(std::move(create_error));
return false;
}
m_stop_reply = std::move(*creation);
return true;
}
// libtest_dlopen_from_ctor_main.so depends on
// libtest_dlopen_from_ctor.so which has a constructor
// that calls dlopen(libc...). This is to test the situation
// described in b/7941716.
TEST(dlfcn, dlopen_dlopen_from_ctor) {
#if defined(__BIONIC__)
void* handle = dlopen("libtest_dlopen_from_ctor_main.so", RTLD_NOW);
ASSERT_TRUE(handle != nullptr) << dlerror();
dlclose(handle);
#else
GTEST_LOG_(INFO) << "This test is disabled for glibc (glibc segfaults if you try to call dlopen from a constructor).\n";
#endif
}
TEST(math_logf, logf_intel) {
#if defined(__BIONIC__)
for (size_t i = 0; i < sizeof(g_logf_intel_data)/sizeof(logf_intel_data_t); i++) {
EXPECT_FLOAT_EQ(g_logf_intel_data[i].expected, logf(g_logf_intel_data[i].call_data)) << "Failed on element " << i;
}
#else // __BIONIC__
GTEST_LOG_(INFO) << "This test does nothing.";
#endif // __BIONIC__
}