96dbfad9b0
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1089 This is for the upcoming upgrade to OpenSSL_1_1_1b Compiler optimization(Visual Studio) may automatically use _ftol2 instead of some type conversion. For example: OpensslLib.lib(drbg_lib.obj) : error LNK2001: unresolved external symbol __ftol2 This patch add _ftol2 function for the compiler intrinsic. Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Ting Ye <ting.ye@intel.com> Signed-off-by: Xiaoyu Lu <xiaoyux.lu@intel.com> Tested-by: Gary Lin <glin@suse.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
23 lines
513 B
C
23 lines
513 B
C
/** @file
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64-bit Math Worker Function.
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The 32-bit versions of C compiler generate calls to library routines
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to handle 64-bit math. These functions use non-standard calling conventions.
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Copyright (c) 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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/*
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* Floating point to integer conversion.
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*/
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__declspec(naked) void _ftol2 (void)
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{
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_asm {
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fistp qword ptr [esp-8]
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mov edx, [esp-4]
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mov eax, [esp-8]
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ret
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}
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}
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