Clear the direction flag in interrupt/exception handlers' assembly entry code before calling C functions to follow the UEFI calling convention.
Signed-off-by: rsun3 Reviewed-by: jyao1 git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11664 6f19259b-4bc3-4df7-8a09-765794883524
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@@ -1,7 +1,7 @@
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;/** @file
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; Low level x64 routines used by the debug support driver.
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;
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; Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
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; Copyright (c) 2007 - 2011, Intel Corporation. All rights reserved.<BR>
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; This program and the accompanying materials
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; are licensed and made available under the terms and conditions of the BSD License
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; which accompanies this distribution. The full text of the license may be found at
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@@ -393,6 +393,9 @@ ExtraPushDone:
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; They MUST be. If they are not, a GP fault will occur.
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FXSTOR_RDI
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;; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
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cld
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;; UINT64 ExceptionData;
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mov rax, ExceptData
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push rax
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