mirror_edk2/MdeModulePkg/Universal/RegularExpressionDxe/Oniguruma/OnigurumaIntrinsics.c
Michael D Kinney 9d510e61fc MdeModulePkg: Replace BSD License with BSD+Patent License
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
2019-04-09 10:58:08 -07:00

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;
}