mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-27 16:58:09 +01:00
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
|
/** @file
|
||
|
|
|
||
|
|
Provide intrinsics within Oniguruma
|
||
|
|
|
||
|
|
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
|
||
|
|
|
||
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
||
|
|
**/
|
||
|
|
|
||
|
|
#include <Library/BaseMemoryLib.h>
|
||
|
|
|
||
|
|
//
|
||
|
|
// From CryptoPkg/IntrinsicLib
|
||
|
|
//
|
||
|
|
|
||
|
|
/* Copies bytes between buffers */
|
||
|
|
#pragma function(memcpy)
|
||
|
|
void * memcpy (void *dest, const void *src, unsigned int count)
|
||
|
|
{
|
||
|
|
return CopyMem (dest, src, (UINTN)count);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Sets buffers to a specified character */
|
||
|
|
#pragma function(memset)
|
||
|
|
void * memset (void *dest, char ch, unsigned int count)
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// NOTE: Here we use one base implementation for memset, instead of the direct
|
||
|
|
// optimized SetMem() wrapper. Because the IntrinsicLib has to be built
|
||
|
|
// without whole program optimization option, and there will be some
|
||
|
|
// potential register usage errors when calling other optimized codes.
|
||
|
|
//
|
||
|
|
|
||
|
|
//
|
||
|
|
// Declare the local variables that actually move the data elements as
|
||
|
|
// volatile to prevent the optimizer from replacing this function with
|
||
|
|
// the intrinsic memset()
|
||
|
|
//
|
||
|
|
volatile UINT8 *Pointer;
|
||
|
|
|
||
|
|
Pointer = (UINT8 *)dest;
|
||
|
|
while (count-- != 0) {
|
||
|
|
*(Pointer++) = ch;
|
||
|
|
}
|
||
|
|
|
||
|
|
return dest;
|
||
|
|
}
|