Fix pipe in signal handler (QNX only)

Change-Id: I4a3ce348da32a4a338c39d74d933b9ce49917a80
Reviewed-by: Robert Griebl <robert.griebl@qt.io>
(cherry picked from commit 9ab85248b628848ec37f6a2c6c1d845ebae6f3a5)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

2 files changed, 3 insertions, 9 deletions

diff --git a/src/common-lib/unixsignalhandler.cpp b/src/common-lib/unixsignalhandler.cpp
index 3349e718..550c0364 100644
--- a/src/common-lib/unixsignalhandler.cpp
+++ b/src/common-lib/unixsignalhandler.cpp
@@ -29,12 +29,9 @@ UnixSignalHandler::am_sigmask_t UnixSignalHandler::am_sigmask(int sig)
 
 UnixSignalHandler *UnixSignalHandler::s_instance = nullptr;
 
-#if defined(Q_OS_UNIX) && !defined(Q_OS_QNX)
-
 UnixSignalHandler::UnixSignalHandler()
-    : QObject()
-    , m_pipe { -1, -1 }
 {
+#if defined(Q_OS_UNIX) && !defined(Q_OS_QNX)
     // Setup alternate signal stack (to get backtrace for stack overflow)
     // Canonical size might not be suffcient to get QML backtrace, so we double it
     size_t stackSize = SIGSTKSZ * 2;
@@ -50,11 +47,8 @@ UnixSignalHandler::UnixSignalHandler()
         // this code runs before all other static constructors
         qWarning("WARNING: UnixSignalHandler failed to allocate memory for an alternate signal stack.");
     }
-}
-#else
-UnixSignalHandler::UnixSignalHandler() : QObject()
-{ }
 #endif
+}
 
 UnixSignalHandler *UnixSignalHandler::instance()
 {
diff --git a/src/common-lib/unixsignalhandler.h b/src/common-lib/unixsignalhandler.h
index 9db2d155..ed9caaa1 100644
--- a/src/common-lib/unixsignalhandler.h
+++ b/src/common-lib/unixsignalhandler.h
@@ -72,7 +72,7 @@ private:
     static am_sigmask_t am_sigmask(int sig);
     QAtomicInteger<am_sigmask_t> m_resetSignalMask;
 #if defined(Q_OS_UNIX)
-    int m_pipe[2];
+    int m_pipe[2] = { -1, -1 };
 #elif defined(Q_OS_WIN)
     QMutex m_winLock;
     QWinEventNotifier *m_winEvent = nullptr;