V4: Generate function tables on 64bit windows

In order for global exception handlers to be called reliably, the runtime
needs to unwind through JIT-generated code. This can be facilitated by
installing a "function table" for each JITed function that specifies "use
the frame pointer".

Also make sure to generate a function table for JIT'ed regular
expressions. Those were forgotten also in the linux case.

Fixes: QTBUG-50061
Change-Id: Ib0b8ae9356ed80afe1cab017e36efa4ccbe73f90
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/qml/jsruntime/qv4function_p.h b/src/qml/jsruntime/qv4function_p.h
index 029dd7786b..86343ea061 100644
--- a/src/qml/jsruntime/qv4function_p.h
+++ b/src/qml/jsruntime/qv4function_p.h
@@ -89,9 +89,12 @@ struct Q_QML_EXPORT Function {
     // used when dynamically assigning signal handlers (QQmlConnection)
     void updateInternalClass(ExecutionEngine *engine, const QList<QByteArray> &parameters);
 
-    inline Heap::String *name() {
+    inline Heap::String *name() const {
         return compilationUnit->runtimeStrings[compiledFunction->nameIndex];
     }
+
+    static QString prettyName(const Function *function, const void *address);
+
     inline QString sourceFile() const { return compilationUnit->fileName(); }
     inline QUrl finalUrl() const { return compilationUnit->finalUrl(); }