Files
slimbootloader/MdePkg/Library/BaseMemoryLibRepStr/ScanMem16Wrapper.c
Guo Dong 416f2d95da Sync edk2 basetool mdepkg (#2121)
* Sync BaseTools to align with edk2-stable202311

Keep the SBL specific change (e.g. Lz4).

Signed-off-by: Guo Dong <guo.dong@intel.com>

* feat: Sync MdePkg from EDK2 edk2-stable202311 branch

Only sync required file without any changes to EDK2 files.

Signed-off-by: Guo Dong <guo.dong@intel.com>

* feat: Update MdePkg for SBL after sync from EDK2

Signed-off-by: Guo Dong <guo.dong@intel.com>

* Update SBL after updating Basetool and MdePkg

After Sync BaseTool and MdePkg to edk2-stable202311,
Need update SBL code to align with this change.

Signed-off-by: Guo Dong <guo.dong@intel.com>

* feat: rollback some changes after mdepkg sync

New change from MdePkg requires new NASM version.
To make sure NASM 2.14.02 still works, just rollback
few changes.

Signed-off-by: Guo Dong <guo.dong@intel.com>

* feat: Update component size to fix build failure

After syncing BaseTool and MdePkg, some components would
have a little bigger size. So update the config to fix the
build failure.

Signed-off-by: Guo Dong <guo.dong@intel.com>

* feat: Remove unused asl code

Some ASL files don't exist but they are included in other asl files.
It would cause build failure with new build BaseTool. So just remove
them to fix the build failure.

Signed-off-by: Guo Dong <guo.dong@intel.com>

---------

Signed-off-by: Guo Dong <guo.dong@intel.com>
2024-03-08 13:43:46 -05:00

62 lines
1.8 KiB
C

/** @file
ScanMem16() implementation.
The following BaseMemoryLib instances contain the same copy of this file:
BaseMemoryLib
BaseMemoryLibMmx
BaseMemoryLibSse2
BaseMemoryLibRepStr
BaseMemoryLibOptDxe
BaseMemoryLibOptPei
PeiMemoryLib
UefiMemoryLib
Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "MemLibInternals.h"
/**
Scans a target buffer for a 16-bit value, and returns a pointer to the matching 16-bit value
in the target buffer.
This function searches the target buffer specified by Buffer and Length from the lowest
address to the highest address for a 16-bit value that matches Value. If a match is found,
then a pointer to the matching byte in the target buffer is returned. If no match is found,
then NULL is returned. If Length is 0, then NULL is returned.
If Length > 0 and Buffer is NULL, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param Buffer The pointer to the target buffer to scan.
@param Length The number of bytes in Buffer to scan.
@param Value The value to search for in the target buffer.
@return A pointer to the matching byte in the target buffer or NULL otherwise.
**/
VOID *
EFIAPI
ScanMem16 (
IN CONST VOID *Buffer,
IN UINTN Length,
IN UINT16 Value
)
{
if (Length == 0) {
return NULL;
}
ASSERT (Buffer != NULL);
ASSERT (((UINTN)Buffer & (sizeof (Value) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN)Buffer));
ASSERT ((Length & (sizeof (Value) - 1)) == 0);
return (VOID *)InternalMemScanMem16 (Buffer, Length / sizeof (Value), Value);
}