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, 19 insertions, 1 deletions

diff --git a/src/qml/jsruntime/jsruntime.pri b/src/qml/jsruntime/jsruntime.pri
index 5ec55b960b..f256718ac9 100644
--- a/src/qml/jsruntime/jsruntime.pri
+++ b/src/qml/jsruntime/jsruntime.pri
@@ -147,7 +147,8 @@ HEADERS += \
     $$PWD/qv4value_p.h \
     $$PWD/qv4string_p.h \
     $$PWD/qv4util_p.h \
-    $$PWD/qv4value_p.h
+    $$PWD/qv4value_p.h \
+    $$PWD/qv4functiontable_p.h
 
 SOURCES += \
     $$PWD/qv4engine.cpp \
@@ -156,6 +157,23 @@ SOURCES += \
     $$PWD/qv4value.cpp \
     $$PWD/qv4executableallocator.cpp
 
+qmldevtools_build {
+    SOURCES += \
+        $$PWD/qv4functiontable_noop.cpp
+} else:win32 {
+    equals(QT_ARCH, x86_64){
+        SOURCES += \
+            $$PWD/qv4functiontable_win64.cpp
+    } else {
+        SOURCES += \
+            $$PWD/qv4functiontable_noop.cpp
+    }
+} else {
+    SOURCES += \
+        $$PWD/qv4functiontable_unix.cpp
+}
+
+
 valgrind {
     DEFINES += V4_USE_VALGRIND
 }