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

1 files changed, 15 insertions, 7 deletions

diff --git a/src/corelib/plugin/qlibrary_unix.cpp b/src/corelib/plugin/qlibrary_unix.cpp
index 6b9e1ad..cc70589 100644
--- a/src/corelib/plugin/qlibrary_unix.cpp
+++ b/src/corelib/plugin/qlibrary_unix.cpp
@@ -58,7 +58,7 @@
 
 QT_BEGIN_NAMESPACE
 
-#if !defined(QT_HPUX_LD)
+#if !defined(QT_HPUX_LD) && !defined(Q_OS_VXWORKS)
 QT_BEGIN_INCLUDE_NAMESPACE
 #include <dlfcn.h>
 QT_END_INCLUDE_NAMESPACE
@@ -66,7 +66,9 @@ QT_END_INCLUDE_NAMESPACE
 
 static QString qdlerror()
 {
-#if !defined(QT_HPUX_LD)
+#if defined(Q_OS_VXWORKS)
+    const char *err = "VxWorks does not support dynamic libraries.";
+#elif !defined(QT_HPUX_LD)
     const char *err = dlerror();
 #else
     const char *err = strerror(errno);
@@ -76,6 +78,8 @@ static QString qdlerror()
 
 bool QLibraryPrivate::load_sys()
 {
+    QString attempt;
+#if !defined(Q_OS_VXWORKS)
     QFileInfo fi(fileName);
     QString path = fi.path();
     QString name = fi.fileName();
@@ -163,7 +167,6 @@ bool QLibraryPrivate::load_sys()
     }
 #endif
 #endif // QT_HPUX_LD
-    QString attempt;
     bool retry = true;
     for(int prefix = 0; retry && !pHnd && prefix < prefixes.size(); prefix++) {
         for(int suffix = 0; retry && !pHnd && suffix < suffixes.size(); suffix++) {
@@ -204,7 +207,8 @@ bool QLibraryPrivate::load_sys()
             attempt = str;
         }
     }
-# endif
+#endif
+#endif // Q_OS_VXWORKS
     if (!pHnd) {
         errorString = QLibrary::tr("Cannot load library %1: %2").arg(fileName).arg(qdlerror());
     }
@@ -217,14 +221,16 @@ bool QLibraryPrivate::load_sys()
 
 bool QLibraryPrivate::unload_sys()
 {
-#if defined(QT_HPUX_LD)
+#if !defined(Q_OS_VXWORKS)
+#  if defined(QT_HPUX_LD)
     if (shl_unload((shl_t)pHnd)) {
-#else
+#  else
     if (dlclose(pHnd)) {
-#endif
+#  endif
         errorString = QLibrary::tr("Cannot unload library %1: %2").arg(fileName).arg(qdlerror());
         return false;
     }
+#endif
     errorString.clear();
     return true;
 }
@@ -249,6 +255,8 @@ void* QLibraryPrivate::resolve_sys(const char* symbol)
     void* address = 0;
     if (shl_findsym((shl_t*)&pHnd, symbol, TYPE_UNDEFINED, &address) < 0)
         address = 0;
+#elif defined(Q_OS_VXWORKS)
+    void *address = 0;
 #else
     void* address = dlsym(pHnd, symbol);
 #endif