| /** @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; | |
| } |