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/** @file
Intrinsic Memory Routines Wrapper Implementation for OpenSSL-based
Cryptographic Library.
Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <Library/BaseMemoryLib.h>
#include <Library/BaseLib.h>
typedef UINTN size_t;
#if defined (__GNUC__) || defined (__clang__)
#define GLOBAL_USED __attribute__((used))
#else
#define GLOBAL_USED
#endif
/* OpenSSL will use floating point support, and C compiler produces the _fltused
symbol by default. Simply define this symbol here to satisfy the linker. */
int GLOBAL_USED _fltused = 1;
/* Sets buffers to a specified character */
void *
memset (
void *dest,
int ch,
size_t 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++) = (UINT8)ch;
}
return dest;
}
/* Compare bytes in two buffers. */
int
memcmp (
const void *buf1,
const void *buf2,
size_t count
)
{
return (int)CompareMem (buf1, buf2, count);
}
int
strcmp (
const char *s1,
const char *s2
)
{
return (int)AsciiStrCmp (s1, s2);
}
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