testlib: Implement FatalSignalHandler inline
Change-Id: Ie6f151cb099151616f83ea8d5e11e6625bedeb8c Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
This commit is contained in:
Tor Arne Vestbø
parent
89f443dfbc
commit
d005d743de
@ -1534,122 +1534,117 @@ void TestMethods::invokeTests(QObject *testObject) const
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}
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}
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#if defined(Q_OS_UNIX) && !defined(Q_OS_WASM)
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#if defined(Q_OS_UNIX) && !defined(Q_OS_WASM)
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class FatalSignalHandler
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class FatalSignalHandler
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{
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{
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public:
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public:
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FatalSignalHandler();
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FatalSignalHandler()
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~FatalSignalHandler();
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{
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sigemptyset(&handledSignals);
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const int fatalSignals[] = {
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SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGBUS, SIGFPE, SIGSEGV, SIGPIPE, SIGTERM, 0 };
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struct sigaction act;
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memset(&act, 0, sizeof(act));
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act.sa_handler = FatalSignalHandler::signal;
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// Remove the handler after it is invoked.
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#if !defined(Q_OS_INTEGRITY)
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act.sa_flags = SA_RESETHAND;
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#endif
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// tvOS/watchOS both define SA_ONSTACK (in sys/signal.h) but mark sigaltstack() as
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// unavailable (__WATCHOS_PROHIBITED __TVOS_PROHIBITED in signal.h)
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#if defined(SA_ONSTACK) && !defined(Q_OS_TVOS) && !defined(Q_OS_WATCHOS)
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// Let the signal handlers use an alternate stack
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// This is necessary if SIGSEGV is to catch a stack overflow
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# if defined(Q_CC_GNU) && defined(Q_OF_ELF)
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// Put the alternate stack in the .lbss (large BSS) section so that it doesn't
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// interfere with normal .bss symbols
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__attribute__((section(".lbss.altstack"), aligned(4096)))
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# endif
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static char alternate_stack[16 * 1024];
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stack_t stack;
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stack.ss_flags = 0;
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stack.ss_size = sizeof alternate_stack;
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stack.ss_sp = alternate_stack;
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sigaltstack(&stack, nullptr);
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act.sa_flags |= SA_ONSTACK;
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#endif
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// Block all fatal signals in our signal handler so we don't try to close
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// the testlog twice.
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sigemptyset(&act.sa_mask);
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for (int i = 0; fatalSignals[i]; ++i)
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sigaddset(&act.sa_mask, fatalSignals[i]);
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struct sigaction oldact;
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for (int i = 0; fatalSignals[i]; ++i) {
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sigaction(fatalSignals[i], &act, &oldact);
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if (
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#ifdef SA_SIGINFO
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oldact.sa_flags & SA_SIGINFO ||
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#endif
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oldact.sa_handler != SIG_DFL) {
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sigaction(fatalSignals[i], &oldact, nullptr);
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} else
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{
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sigaddset(&handledSignals, fatalSignals[i]);
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}
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}
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}
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~FatalSignalHandler()
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{
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// Unregister any of our remaining signal handlers
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struct sigaction act;
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memset(&act, 0, sizeof(act));
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act.sa_handler = SIG_DFL;
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struct sigaction oldact;
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for (int i = 1; i < 32; ++i) {
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if (!sigismember(&handledSignals, i))
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continue;
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sigaction(i, &act, &oldact);
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// If someone overwrote it in the mean time, put it back
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if (oldact.sa_handler != FatalSignalHandler::signal)
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sigaction(i, &oldact, nullptr);
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}
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}
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private:
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private:
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static void signal(int);
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static void signal(int signum)
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{
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const int msecsFunctionTime = qRound(QTestLog::msecsFunctionTime());
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const int msecsTotalTime = qRound(QTestLog::msecsTotalTime());
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if (signum != SIGINT) {
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stackTrace();
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if (qEnvironmentVariableIsSet("QTEST_PAUSE_ON_CRASH")) {
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fprintf(stderr, "Pausing process %d for debugging\n", getpid());
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raise(SIGSTOP);
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}
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}
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qFatal("Received signal %d\n"
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" Function time: %dms Total time: %dms",
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signum, msecsFunctionTime, msecsTotalTime);
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#if defined(Q_OS_INTEGRITY)
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{
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struct sigaction act;
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memset(&act, 0, sizeof(struct sigaction));
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act.sa_handler = SIG_DFL;
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sigaction(signum, &act, NULL);
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}
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#endif
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}
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sigset_t handledSignals;
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sigset_t handledSignals;
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};
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};
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void FatalSignalHandler::signal(int signum)
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{
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const int msecsFunctionTime = qRound(QTestLog::msecsFunctionTime());
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const int msecsTotalTime = qRound(QTestLog::msecsTotalTime());
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if (signum != SIGINT) {
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stackTrace();
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if (qEnvironmentVariableIsSet("QTEST_PAUSE_ON_CRASH")) {
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fprintf(stderr, "Pausing process %d for debugging\n", getpid());
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raise(SIGSTOP);
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}
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}
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qFatal("Received signal %d\n"
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" Function time: %dms Total time: %dms",
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signum, msecsFunctionTime, msecsTotalTime);
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#if defined(Q_OS_INTEGRITY)
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{
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struct sigaction act;
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memset(&act, 0, sizeof(struct sigaction));
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act.sa_handler = SIG_DFL;
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sigaction(signum, &act, NULL);
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}
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#endif
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#endif
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}
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FatalSignalHandler::FatalSignalHandler()
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{
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sigemptyset(&handledSignals);
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const int fatalSignals[] = {
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SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGBUS, SIGFPE, SIGSEGV, SIGPIPE, SIGTERM, 0 };
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struct sigaction act;
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memset(&act, 0, sizeof(act));
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act.sa_handler = FatalSignalHandler::signal;
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// Remove the handler after it is invoked.
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#if !defined(Q_OS_INTEGRITY)
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act.sa_flags = SA_RESETHAND;
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#endif
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// tvOS/watchOS both define SA_ONSTACK (in sys/signal.h) but mark sigaltstack() as
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// unavailable (__WATCHOS_PROHIBITED __TVOS_PROHIBITED in signal.h)
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#if defined(SA_ONSTACK) && !defined(Q_OS_TVOS) && !defined(Q_OS_WATCHOS)
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// Let the signal handlers use an alternate stack
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// This is necessary if SIGSEGV is to catch a stack overflow
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# if defined(Q_CC_GNU) && defined(Q_OF_ELF)
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// Put the alternate stack in the .lbss (large BSS) section so that it doesn't
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// interfere with normal .bss symbols
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__attribute__((section(".lbss.altstack"), aligned(4096)))
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# endif
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static char alternate_stack[16 * 1024];
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stack_t stack;
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stack.ss_flags = 0;
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stack.ss_size = sizeof alternate_stack;
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stack.ss_sp = alternate_stack;
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sigaltstack(&stack, nullptr);
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act.sa_flags |= SA_ONSTACK;
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#endif
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// Block all fatal signals in our signal handler so we don't try to close
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// the testlog twice.
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sigemptyset(&act.sa_mask);
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for (int i = 0; fatalSignals[i]; ++i)
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sigaddset(&act.sa_mask, fatalSignals[i]);
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struct sigaction oldact;
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for (int i = 0; fatalSignals[i]; ++i) {
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sigaction(fatalSignals[i], &act, &oldact);
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if (
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#ifdef SA_SIGINFO
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oldact.sa_flags & SA_SIGINFO ||
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#endif
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oldact.sa_handler != SIG_DFL) {
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sigaction(fatalSignals[i], &oldact, nullptr);
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} else
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{
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sigaddset(&handledSignals, fatalSignals[i]);
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}
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}
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}
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FatalSignalHandler::~FatalSignalHandler()
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{
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// Unregister any of our remaining signal handlers
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struct sigaction act;
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memset(&act, 0, sizeof(act));
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act.sa_handler = SIG_DFL;
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struct sigaction oldact;
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for (int i = 1; i < 32; ++i) {
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if (!sigismember(&handledSignals, i))
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continue;
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sigaction(i, &act, &oldact);
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// If someone overwrote it in the mean time, put it back
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if (oldact.sa_handler != FatalSignalHandler::signal)
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sigaction(i, &oldact, nullptr);
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}
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}
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#endif
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} // namespace
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} // namespace
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