diff options
Diffstat (limited to 'Core/CryptoPkg/Library/IntrinsicLib/MemoryIntrinsics.c')
-rw-r--r-- | Core/CryptoPkg/Library/IntrinsicLib/MemoryIntrinsics.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Core/CryptoPkg/Library/IntrinsicLib/MemoryIntrinsics.c b/Core/CryptoPkg/Library/IntrinsicLib/MemoryIntrinsics.c new file mode 100644 index 0000000000..bf485d680d --- /dev/null +++ b/Core/CryptoPkg/Library/IntrinsicLib/MemoryIntrinsics.c @@ -0,0 +1,60 @@ +/** @file
+ Intrinsic Memory Routines Wrapper Implementation for OpenSSL-based
+ Cryptographic Library.
+
+Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <Base.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/BaseLib.h>
+
+typedef UINTN size_t;
+
+/* 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 _fltused = 1;
+
+/* Sets buffers to a specified character */
+void * memset (void *dest, char 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++) = 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);
+}
|