46226fb5d3
In rare cases the platform may not provide the full IntrinsicLib. But openssl30 build always require strcmp, provide this function by moving it into CrtWrapper.c. Signed-off-by: Yi Li <yi1.li@intel.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Xiaoyu Lu <xiaoyu1.lu@intel.com> Cc: Guomin Jiang <guomin.jiang@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Ard Biesheuvel <ardb@kernel.org> Tested-by: Brian J. Johnson <brian.johnson@hpe.com> Tested-by: Kenneth Lautner <klautner@microsoft.com>
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/** @file
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Intrinsic Memory Routines Wrapper Implementation for OpenSSL-based
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Cryptographic Library.
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Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Base.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/BaseLib.h>
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typedef UINTN size_t;
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#if defined (__GNUC__) || defined (__clang__)
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#define GLOBAL_USED __attribute__((used))
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#else
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#define GLOBAL_USED
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#endif
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/* OpenSSL will use floating point support, and C compiler produces the _fltused
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symbol by default. Simply define this symbol here to satisfy the linker. */
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int GLOBAL_USED _fltused = 1;
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/* Sets buffers to a specified character */
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void *
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memset (
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void *dest,
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int ch,
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size_t count
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)
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{
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//
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// NOTE: Here we use one base implementation for memset, instead of the direct
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// optimized SetMem() wrapper. Because the IntrinsicLib has to be built
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// without whole program optimization option, and there will be some
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// potential register usage errors when calling other optimized codes.
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//
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//
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// Declare the local variables that actually move the data elements as
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// volatile to prevent the optimizer from replacing this function with
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// the intrinsic memset()
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//
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volatile UINT8 *Pointer;
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Pointer = (UINT8 *)dest;
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while (count-- != 0) {
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*(Pointer++) = (UINT8)ch;
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}
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return dest;
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}
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/* Compare bytes in two buffers. */
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int
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memcmp (
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const void *buf1,
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const void *buf2,
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size_t count
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)
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{
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return (int)CompareMem (buf1, buf2, count);
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}
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