gnu-efi/0004-Make-sure-stdint.h-is-always-used-with-MSVC-on-ARM-A.patch

From 39ce220cb6fde14bedf2ef61695f3d20726e41ef Mon Sep 17 00:00:00 2001
From: Nigel Croxon <ncroxon@redhat.com>
Date: Mon, 6 Nov 2017 09:26:05 -0500
Subject: [PATCH 04/25] Make sure stdint.h is always used with MSVC on
 ARM/ARM64, since all the versions of Visual Studio that support ARM or ARM64
 have that header. Without this, uint64_t would be defined to unsigned long,
 which is 32-bits in the Microsoft world.

Also fix aarch64/initplat.c so that memset/memcpy only apply
to gcc. Otherwise MSVC throws an error for __SIZE_TYPE__.

Updating this patch to v2, since it turns out MSVC will also emit
memset and memcpy intrinsics that we can use an implementation for.
This is true for both ARM and ARM64.
To make this work, I'm defining __SIZE_TYPE__ to UINTN if not
already defined.

Signed-off-by: Pete Batard <pete@akeo.ie>
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
---
 lib/aarch64/initplat.c | 4 ++++
 lib/arm/initplat.c     | 6 +++++-
 inc/aarch64/efibind.h  | 2 +-
 inc/arm/efibind.h      | 2 +-
 4 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/lib/aarch64/initplat.c b/lib/aarch64/initplat.c
index 4b118656d7c..25207f42c8f 100644
--- a/lib/aarch64/initplat.c
+++ b/lib/aarch64/initplat.c
@@ -25,6 +25,10 @@ InitializeLibPlatform (
 {
 }
 
+#ifndef __SIZE_TYPE__
+#define __SIZE_TYPE__ UINTN
+#endif
+
 /*
  * Calls to these functions may be emitted implicitly by GCC even when
  * -ffreestanding is in effect.
diff --git a/lib/arm/initplat.c b/lib/arm/initplat.c
index 09f06a9c871..c77d26d9045 100644
--- a/lib/arm/initplat.c
+++ b/lib/arm/initplat.c
@@ -25,7 +25,10 @@ InitializeLibPlatform (
 {
 }
 
-#ifdef __GNUC__
+#ifndef __SIZE_TYPE__
+#define __SIZE_TYPE__ UINTN
+#endif
+
 /*
  * Calls to these functions may be emitted implicitly by GCC even when
  * -ffreestanding is in effect.
@@ -51,6 +54,7 @@ void *memcpy(void *dest, const void *src, __SIZE_TYPE__ n)
     return dest;
 }
 
+#ifdef __GNUC__
 void __div0(void)
 {
 	// TODO handle divide by zero fault
diff --git a/inc/aarch64/efibind.h b/inc/aarch64/efibind.h
index ef7148d5312..182a2109062 100644
--- a/inc/aarch64/efibind.h
+++ b/inc/aarch64/efibind.h
@@ -15,7 +15,7 @@
  * either version 2 of the License, or (at your option) any later version.
  */
 
-#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L )
+#if !defined(_MSC_VER) && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L ))
 
 // ANSI C 1999/2000 stdint.h integer width declarations
 
diff --git a/inc/arm/efibind.h b/inc/arm/efibind.h
index 06f6ea1aeb8..40a5a9cd428 100644
--- a/inc/arm/efibind.h
+++ b/inc/arm/efibind.h
@@ -15,7 +15,7 @@
  * either version 2 of the License, or (at your option) any later version.
  */
 
-#if !defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L )
+#if !defined(_MSC_VER) && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L ))
 
 // ANSI C 1999/2000 stdint.h integer width declarations
 
-- 
2.15.0