Port of Qt to VxWorks

This makes Qt work on VxWorks 6.6+ in native (kernel) mode.
 * compiles with the WindRiver GNU toolchain (Linux only)
 * works with QWS (tested with the VNC driver only)
 * tested on PPC hardware and the x86 VxWorks simulator
 * no q3support, no phonon, no webkit
 * no QSharedMemory, no QSystemSemaphore, no QProcess
 * only one QApplication instance (flat address space)
 * filesystem support depends heavily on the quality of the native driver
 * QLibrary is just a dummy to make plugins work at all
 * qmake transparently creates VxWorks munching rules for static ctors
 * made auto-test cope with missing OS features

A special note regarding the Q_FOREACH patch for dcc:
when calling foreach(a,c) with c being a function returning a container,
the compiler would generate 5 references to some labels (.LXXXX), which
are not there (so the linker complains in the end).
Seems like dcc doesn't really like the 'true ? 0 : <function call to get type>'
statement

Reviewed-By: Harald Fernengel

2 files changed, 39 insertions, 1 deletions

diff --git a/src/corelib/global/qglobal.cpp b/src/corelib/global/qglobal.cpp
index f7d6514..99e373f 100644
--- a/src/corelib/global/qglobal.cpp
+++ b/src/corelib/global/qglobal.cpp
@@ -62,6 +62,10 @@
 #  endif
 #endif
 
+#if defined(Q_OS_VXWORKS)
+#  include <envLib.h>
+#endif
+
 #ifdef Q_CC_MWERKS
 #include <CoreServices/CoreServices.h>
 #endif
diff --git a/src/corelib/global/qglobal.h b/src/corelib/global/qglobal.h
index 4ceabee..a631c6a 100644
--- a/src/corelib/global/qglobal.h
+++ b/src/corelib/global/qglobal.h
@@ -251,6 +251,8 @@ namespace QT_NAMESPACE {}
 #  define Q_OS_UNIXWARE
 #elif defined(__INTEGRITY)
 #  define Q_OS_INTEGRITY
+#elif defined(VXWORKS) /* there is no "real" VxWorks define - this has to be set in the mkspec! */
+#  define Q_OS_VXWORKS
 #elif defined(__MAKEDEPEND__)
 #else
 #  error "Qt has not been ported to this OS - talk to qt-bugs@trolltech.com"
@@ -611,6 +613,13 @@ namespace QT_NAMESPACE {}
 #  elif defined(__ghs)
 #    define Q_CC_GHS
 
+#  elif defined(__DCC__)
+#    define Q_CC_DIAB
+#    undef Q_NO_BOOL_TYPE
+#    if !defined(__bool)
+#      define Q_NO_BOOL_TYPE
+#    endif
+
 /* The UnixWare 7 UDK compiler is based on EDG and does define __EDG__ */
 #  elif defined(__USLC__) && defined(__SCO_VERSION__)
 #    define Q_CC_USLC
@@ -642,6 +651,11 @@ namespace QT_NAMESPACE {}
 #    endif
 #  endif
 
+/* VxWorks' DIAB toolchain has an additional EDG type C++ compiler
+   (see __DCC__ above). This one is for C mode files (__EDG is not defined) */
+#elif defined(_DIAB_TOOL)
+#  define Q_CC_DIAB
+
 /* Never tested! */
 #elif defined(__HIGHC__)
 #  define Q_CC_HIGHC
@@ -1110,6 +1124,15 @@ class QDataStream;
 #  define QT_NO_COP
 #endif
 
+#if defined(Q_OS_VXWORKS)
+#  define QT_NO_CRASHHANDLER     // no popen
+#  define QT_NO_PROCESS          // no exec*, no fork
+#  define QT_NO_LPR
+#  define QT_NO_SHAREDMEMORY     // only POSIX, no SysV and in the end...
+#  define QT_NO_SYSTEMSEMAPHORE  // not needed at all in a flat address space
+#  define QT_NO_QWS_MULTIPROCESS // no processes
+#endif
+
 # include <QtCore/qfeatures.h>
 
 #define QT_SUPPORTS(FEATURE) (!defined(QT_NO_##FEATURE))
@@ -1552,7 +1575,7 @@ Q_CORE_EXPORT void qt_check_pointer(const char *, int);
 #  define Q_CHECK_PTR(p)
 #endif
 
-#if (defined(Q_CC_GNU) && !defined(Q_OS_SOLARIS)) || defined(Q_CC_HPACC)
+#if (defined(Q_CC_GNU) && !defined(Q_OS_SOLARIS)) || defined(Q_CC_HPACC) || defined(Q_CC_DIAB)
 #  define Q_FUNC_INFO __PRETTY_FUNCTION__
 #elif defined(_MSC_VER)
     /* MSVC 2002 doesn't have __FUNCSIG__ nor can it handle QT_STRINGIFY. */
@@ -2142,6 +2165,17 @@ inline const QForeachContainer<T> *qForeachContainer(const QForeachContainerBase
              qForeachContainer(&_container_, true ? 0 : qForeachPointer(container))->brk;           \
              --qForeachContainer(&_container_, true ? 0 : qForeachPointer(container))->brk)
 
+#elif defined(Q_CC_DIAB)
+// VxWorks DIAB generates unresolvable symbols, if container is a function call
+#  define Q_FOREACH(variable,container)                                                             \
+    if(0){}else                                                                                     \
+    for (const QForeachContainerBase &_container_ = qForeachContainerNew(container);                \
+         qForeachContainer(&_container_, (__typeof__(container) *) 0)->condition();       \
+         ++qForeachContainer(&_container_, (__typeof__(container) *) 0)->i)               \
+        for (variable = *qForeachContainer(&_container_, (__typeof__(container) *) 0)->i; \
+             qForeachContainer(&_container_, (__typeof__(container) *) 0)->brk;           \
+             --qForeachContainer(&_container_, (__typeof__(container) *) 0)->brk)
+
 #else
 #  define Q_FOREACH(variable, container) \
     for (const QForeachContainerBase &_container_ = qForeachContainerNew(container); \