Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/bdwgc/extra/symbian/global_end.cpp

@@ -0,0 +1,10 @@
+// Symbian-specific file.
+
+// INCLUDE FILES
+#include "private/gcconfig.h"
+
+extern "C" {
+
+int winscw_data_end;
+
+} /* extern "C" */

external/bdwgc/extra/symbian/global_start.cpp

@@ -0,0 +1,10 @@
+// Symbian-specific file.
+
+// INCLUDE FILES
+#include "private/gcconfig.h"
+
+extern "C" {
+
+int winscw_data_start;
+
+} /* extern "C" */

external/bdwgc/extra/symbian/init_global_static_roots.cpp

@@ -0,0 +1,28 @@
+// Symbian-specific file.
+
+// INCLUDE FILES
+#include <e32def.h>
+
+#include "private/gcconfig.h"
+#include "gc.h"
+
+extern "C" {
+
+void GC_init_global_static_roots()
+{
+    ptr_t dataStart = NULL;
+    ptr_t dataEnd = NULL;
+#   if defined (__WINS__)
+        extern int winscw_data_start, winscw_data_end;
+        dataStart = ((ptr_t)&winscw_data_start);
+        dataEnd   = ((ptr_t)&winscw_data_end);
+#   else
+        extern int Image$$RW$$Limit[], Image$$RW$$Base[];
+        dataStart = ((ptr_t)Image$$RW$$Base);
+        dataEnd   = ((ptr_t)Image$$RW$$Limit);
+#   endif
+
+    GC_add_roots(dataStart, dataEnd);
+}
+
+} /* extern "C" */