2281eb6f48
Problems have been encountered because some of the source files have execute permission set. This can cause git to report them as changed when they are checked out onto a file system with inherited permissions. This has been seen using Cygwin, MinGW and PowerShell Git. This patch makes no change to source file content, and only aims to correct the file modes/permissions. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Evan Lloyd <evan.lloyd@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19778 6f19259b-4bc3-4df7-8a09-765794883524
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/** @file
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ScanMem32() implementation.
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The following BaseMemoryLib instances contain the same copy of this file:
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BaseMemoryLib
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BaseMemoryLibMmx
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BaseMemoryLibSse2
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BaseMemoryLibRepStr
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BaseMemoryLibOptDxe
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BaseMemoryLibOptPei
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PeiMemoryLib
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UefiMemoryLib
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Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "MemLibInternals.h"
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/**
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Scans a target buffer for a 32-bit value, and returns a pointer to the matching 32-bit value
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in the target buffer.
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This function searches the target buffer specified by Buffer and Length from the lowest
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address to the highest address for a 32-bit value that matches Value. If a match is found,
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then a pointer to the matching byte in the target buffer is returned. If no match is found,
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then NULL is returned. If Length is 0, then NULL is returned.
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If Length > 0 and Buffer is NULL, then ASSERT().
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If Buffer is not aligned on a 32-bit boundary, then ASSERT().
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If Length is not aligned on a 32-bit boundary, then ASSERT().
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If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
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@param Buffer Pointer to the target buffer to scan.
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@param Length Number of bytes in Buffer to scan.
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@param Value Value to search for in the target buffer.
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@return A pointer to the matching byte in the target buffer or NULL otherwise.
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**/
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VOID *
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EFIAPI
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ScanMem32 (
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IN CONST VOID *Buffer,
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IN UINTN Length,
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IN UINT32 Value
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)
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{
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if (Length == 0) {
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return NULL;
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}
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ASSERT (Buffer != NULL);
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ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
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ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
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ASSERT ((Length & (sizeof (Value) - 1)) == 0);
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return (VOID*)InternalMemScanMem32 (Buffer, Length / sizeof (Value), Value);
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}
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