diff options
author | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-16 03:26:32 +0000 |
---|---|---|
committer | bxing <bxing@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-16 03:26:32 +0000 |
commit | 24de7645e857287d096b058f7a64fb7f618c0194 (patch) | |
tree | 85f7b9e88f09b201ac443309665b678f45154b7a /MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c | |
parent | 608fd3fd6159e8bcbf6f55926fc805e175d168eb (diff) | |
download | edk2-24de7645e857287d096b058f7a64fb7f618c0194.zip edk2-24de7645e857287d096b058f7a64fb7f618c0194.tar.gz edk2-24de7645e857287d096b058f7a64fb7f618c0194.tar.bz2 |
Split wrapper functions into separate source files to reduce image code size
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@168 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c')
-rw-r--r-- | MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c b/MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c new file mode 100644 index 0000000..c5f0762 --- /dev/null +++ b/MdePkg/Library/PeiMemoryLib/ScanMem64Wrapper.c @@ -0,0 +1,66 @@ +/** @file
+ ScanMem64() 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.
+
+ Module Name: ScanMem64Wrapper.c
+
+ The following BaseMemoryLib instances share the same version of this file:
+
+ BaseMemoryLib
+ BaseMemoryLibMmx
+ BaseMemoryLibSse2
+ BaseMemoryLibRepStr
+ PeiMemoryLib
+ UefiMemoryLib
+
+**/
+
+#include "MemLibInternals.h"
+
+/**
+ Scans a target buffer for a 64-bit value, and returns a pointer to the
+ matching 64-bit value in the target buffer.
+
+ This function searches target the buffer specified by Buffer and Length from
+ the lowest address to the highest address at 64-bit increments for a 64-bit
+ value that matches Value. If a match is found, then a pointer to the matching
+ value in the target buffer is returned. If no match is found, then NULL is
+ returned. If Length is 0, then NULL is returned.
+
+ If Buffer is NULL, then ASSERT().
+ If Buffer is not aligned on a 64-bit boundary, then ASSERT().
+ If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
+
+ @param Buffer Pointer to the target buffer to scan.
+ @param Length Number of bytes in Buffer to scan.
+ @param Value Value to search for in the target buffer.
+
+ @return Pointer to the first occurrence or NULL if not found.
+ @retval NULL if Length == 0 or Value was not found.
+
+**/
+VOID *
+EFIAPI
+ScanMem64 (
+ IN CONST VOID *Buffer,
+ IN UINTN Length,
+ IN UINT64 Value
+ )
+{
+ ASSERT (Buffer != NULL);
+ ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
+ ASSERT (Length <= MAX_ADDRESS + (UINTN)Buffer + 1);
+
+ if ((Length /= sizeof (Value)) == 0) {
+ return NULL;
+ }
+ return (VOID*)InternalMemScanMem64 (Buffer, Length, Value);
+}
|