Adding upstream version 7.0.14-dfsg.upstream/7.0.14-dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 48 insertions, 0 deletions

diff --git a/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLib/IsZeroBufferWrapper.c b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLib/IsZeroBufferWrapper.c
new file mode 100644
index 00000000..40d73f0c
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/MdePkg/Library/BaseMemoryLib/IsZeroBufferWrapper.c
@@ -0,0 +1,48 @@
+/** @file
+  Implementation of IsZeroBuffer function.
+
+  The following BaseMemoryLib instances contain the same copy of this file:
+
+    BaseMemoryLib
+    BaseMemoryLibMmx
+    BaseMemoryLibSse2
+    BaseMemoryLibRepStr
+    BaseMemoryLibOptDxe
+    BaseMemoryLibOptPei
+    PeiMemoryLib
+    UefiMemoryLib
+
+  Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+  Checks if the contents of a buffer are all zeros.
+
+  This function checks whether the contents of a buffer are all zeros. If the
+  contents are all zeros, return TRUE. Otherwise, return FALSE.
+
+  If Length > 0 and Buffer is NULL, then ASSERT().
+  If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+  @param  Buffer      The pointer to the buffer to be checked.
+  @param  Length      The size of the buffer (in bytes) to be checked.
+
+  @retval TRUE        Contents of the buffer are all zeros.
+  @retval FALSE       Contents of the buffer are not all zeros.
+
+**/
+BOOLEAN
+EFIAPI
+IsZeroBuffer (
+  IN CONST VOID  *Buffer,
+  IN UINTN       Length
+  )
+{
+  ASSERT (!(Buffer == NULL && Length > 0));
+  ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
+  return InternalMemIsZeroBuffer (Buffer, Length);
+}