VA_START, VA_END and VA_COPY are the same as the generic macros.
VA_ARG was reverse engineered from MS ARM assembly output.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Pete Batard <p...@akeo.ie>
---
MdePkg/Include/Base.h | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
index 29db8a253e2f..7152ccda9764 100644
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -660,6 +660,19 @@ struct _LIST_ENTRY {
#define VA_COPY(Dest, Start) __va_copy (Dest, Start)
+#elif defined(_M_ARM)
+//
+// MSFT ARM variable argument list support.
+// Same as the generic macros below, except for VA_ARG that needs extra
adjustment.
+//
+
+typedef char* VA_LIST;
+
+#define VA_START(Marker, Parameter) (Marker = (VA_LIST) ((UINTN) &
(Parameter) + _INT_SIZE_OF(Parameter)))
+#define VA_ARG(Marker, TYPE) (*(TYPE *) ((Marker +=
_INT_SIZE_OF(TYPE) + ((-(INTN)Marker) & (sizeof(TYPE) - 1))) - _INT_SIZE_OF
(TYPE)))
+#define VA_END(Marker) (Marker = (VA_LIST) 0)
+#define VA_COPY(Dest, Start) ((void)((Dest) = (Start)))
+
#elif defined(__GNUC__)
#if defined(MDE_CPU_X64) && !defined(NO_MSABI_VA_FUNCS)
--
2.9.3.windows.2
_______________________________________________
edk2-devel mailing list
edk2-devel@lists.01.org
https://lists.01.org/mailman/listinfo/edk2-devel
