From: Pete Batard <pete@akeo.ie>
To: edk2-devel@lists.01.org
Cc: liming.gao@intel.com
Subject: [PATCH 5/6] MdePkg/Include: Add VA list support for VS2017/ARM
Date: Mon, 4 Dec 2017 13:12:04 +0000 [thread overview]
Message-ID: <20171204131205.11304-6-pete@akeo.ie> (raw)
In-Reply-To: <20171204131205.11304-1-pete@akeo.ie>
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 <pete@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 02140a5ac2ee..f3467ecdc22f 100644
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -631,6 +631,19 @@ 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
next prev parent reply other threads:[~2017-12-04 13:07 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-04 13:11 [PATCH 0/6] Add ARM support for VS2017 Pete Batard
2017-12-04 13:12 ` [PATCH 1/6] MdePkg: Disable some Level 4 warnings for VS2017/ARM Pete Batard
2017-12-04 15:36 ` Gao, Liming
2017-12-04 17:42 ` Pete Batard
2017-12-04 13:12 ` [PATCH 2/6] MdePkg/Library/BaseStackCheckLib: Add Null handler " Pete Batard
2017-12-04 13:12 ` [PATCH 3/6] MdePkg/Library/BaseLib: Enable VS2017/ARM builds Pete Batard
2017-12-04 15:40 ` Gao, Liming
2017-12-04 17:43 ` Pete Batard
2017-12-04 13:12 ` [PATCH 4/6] ArmPkg/Library/CompilerIntrinsicsLib: " Pete Batard
2017-12-04 13:12 ` Pete Batard [this message]
2017-12-04 13:12 ` [PATCH 6/6] BaseTools/Conf: Add VS2017/ARM support Pete Batard
2017-12-04 15:48 ` Gao, Liming
2017-12-04 17:43 ` Pete Batard
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