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| author | xli24 <xli24@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-10-25 16:03:02 +0000 |
|---|---|---|
| committer | xli24 <xli24@6f19259b-4bc3-4df7-8a09-765794883524> | 2008-10-25 16:03:02 +0000 |
| commit | 677472aae4923fedd82249021e872219389542f5 (patch) | |
| tree | df2edb265dd864d1d2da5d76fb714ba22c2c7d26 /MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c | |
| parent | 7e43ed89b28a1ce91ccf30bcb9d4ccaab966d0a4 (diff) | |
| download | edk2-677472aae4923fedd82249021e872219389542f5.tar.gz edk2-677472aae4923fedd82249021e872219389542f5.tar.bz2 edk2-677472aae4923fedd82249021e872219389542f5.zip | |
1. Rename following library instances according to MDE Library Spec:
1) SerialPortLibNull => BaseSerialPortLibNull
2) DxeMemoryLib => UefiMemoryLib
3) DxeMemoryAllocationLib => UefiMemoryAllocationLib
4) CpuLib => BaseCpuLib
5) HiiLib => UefiHiiLib
6) IfrSupportLib => UefiIfrSupportLib
7) PeiPalCallLib => PeiPalLib
2. Add library instances to MDE package
1) DxePalLib
2) FvbServiceLib
3) GraphicsLib
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6221 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c')
| -rw-r--r-- | MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c b/MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c new file mode 100644 index 0000000000..99870bcc83 --- /dev/null +++ b/MdePkg/Library/UefiMemoryLib/CopyMemWrapper.c @@ -0,0 +1,62 @@ +/** @file
+ CopyMem() implementation.
+
+ Copyright (c) 2006, Intel Corporation<BR>
+ All rights reserved. This program and the accompanying materials
+ are licensed and made available under the terms and conditions of the BSD License
+ which accompanies this distribution. The full text of the license may be found at
+ http://opensource.org/licenses/bsd-license.php
+
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+ The following BaseMemoryLib instances contain the same copy of this file:
+
+ BaseMemoryLib
+ BaseMemoryLibMmx
+ BaseMemoryLibSse2
+ BaseMemoryLibRepStr
+ BaseMemoryLibOptDxe
+ BaseMemoryLibOptPei
+ PeiMemoryLib
+ DxeMemoryLib
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+ Copies a source buffer to a destination buffer, and returns the destination buffer.
+
+ This function copies Length bytes from SourceBuffer to DestinationBuffer, and returns
+ DestinationBuffer. The implementation must be reentrant, and it must handle the case
+ where SourceBuffer overlaps DestinationBuffer.
+ If Length is greater than (MAX_ADDRESS - DestinationBuffer + 1), then ASSERT().
+ If Length is greater than (MAX_ADDRESS - SourceBuffer + 1), then ASSERT().
+
+ @param DestinationBuffer Pointer to the destination buffer of the memory copy.
+ @param SourceBuffer Pointer to the source buffer of the memory copy.
+ @param Length Number of bytes to copy from SourceBuffer to DestinationBuffer.
+
+ @return DestinationBuffer.
+
+**/
+VOID *
+EFIAPI
+CopyMem (
+ OUT VOID *DestinationBuffer,
+ IN CONST VOID *SourceBuffer,
+ IN UINTN Length
+ )
+{
+ if (Length == 0) {
+ return DestinationBuffer;
+ }
+ ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)DestinationBuffer));
+ ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)SourceBuffer));
+
+ if (DestinationBuffer == SourceBuffer) {
+ return DestinationBuffer;
+ }
+ return InternalMemCopyMem (DestinationBuffer, SourceBuffer, Length);
+}
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