[edk2-devel] [Patch 04/11] MdePkg Base.h: Add definition for CLANG9 tool chain

[Liming Gao]

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=1603
CLANG9 tool chain defines __clang__ macro only,
doesn't define __GNUC__ macro. But, it uses some same definitions with GCC.
So, update base definition for CLANG9 tool chain.

Signed-off-by: Liming Gao <liming.gao at intel.com>
Cc: Michael Kinney <michael.d.kinney at intel.com>
Reviewed-by: Philippe Mathieu-Daude <philmd at redhat.com>
Reviewed-by: Michael D Kinney <michael.d.kinney at intel.com>
---
 MdePkg/Include/Base.h               | 6 +++---
 MdePkg/Include/Ia32/ProcessorBind.h | 4 ++--
 MdePkg/Include/X64/ProcessorBind.h  | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
index d94b8a5f93..4680e64136 100644
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -621,9 +621,9 @@ typedef char* VA_LIST;
 #define VA_END(Marker)                  (Marker = (VA_LIST) 0)
 #define VA_COPY(Dest, Start)            ((void)((Dest) = (Start)))
 
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) || defined(__clang__)
 
-#if defined(MDE_CPU_X64) && !defined(NO_MSABI_VA_FUNCS)
+#if defined(MDE_CPU_X64) && !defined(NO_MSABI_VA_FUNCS) && !defined(__clang__)
 //
 // X64 only. Use MS ABI version of GCC built-in macros for variable argument lists.
 //
@@ -1274,7 +1274,7 @@ typedef UINTN RETURN_STATUS;
 
   **/
   #define RETURN_ADDRESS(L)     ((L == 0) ? _ReturnAddress() : (VOID *) 0)
-#elif defined(__GNUC__)
+#elif defined (__GNUC__) || defined (__clang__)
   void * __builtin_return_address (unsigned int level);
   /**
     Get the return address of the calling function.
diff --git a/MdePkg/Include/Ia32/ProcessorBind.h b/MdePkg/Include/Ia32/ProcessorBind.h
index 497c58b33b..fa4b7e8e98 100644
--- a/MdePkg/Include/Ia32/ProcessorBind.h
+++ b/MdePkg/Include/Ia32/ProcessorBind.h
@@ -281,7 +281,7 @@ typedef INT32   INTN;
   /// Microsoft* compiler specific method for EFIAPI calling convention.
   ///
   #define EFIAPI __cdecl
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) || defined(__clang__)
   ///
   /// GCC specific method for EFIAPI calling convention.
   ///
@@ -294,7 +294,7 @@ typedef INT32   INTN;
   #define EFIAPI
 #endif
 
-#if defined(__GNUC__)
+#if defined(__GNUC__) || defined(__clang__)
   ///
   /// For GNU assembly code, .global or .globl can declare global symbols.
   /// Define this macro to unify the usage.
diff --git a/MdePkg/Include/X64/ProcessorBind.h b/MdePkg/Include/X64/ProcessorBind.h
index 6f65acd609..387e9c5c9c 100644
--- a/MdePkg/Include/X64/ProcessorBind.h
+++ b/MdePkg/Include/X64/ProcessorBind.h
@@ -313,7 +313,7 @@ typedef INT64   INTN;
   #define EFIAPI
 #endif
 
-#if defined(__GNUC__)
+#if defined(__GNUC__) || defined(__clang__)
   ///
   /// For GNU assembly code, .global or .globl can declare global symbols.
   /// Define this macro to unify the usage.
-- 
2.13.0.windows.1


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