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Clear the direction flag in interrupt/exception handlers' assembly entry code before calling C functions to follow the UEFI calling convention.

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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
This commit is contained in:
rsun3
2011-05-16 06:10:42 +00:00
parent e332b442b9
commit ad8cbf7197
4 changed files with 16 additions and 4 deletions
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5
MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.asm
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@@ -1,7 +1,7 @@
;/** @file
; Low level x64 routines used by the debug support driver.
;
; Copyright (c) 2007 - 2010, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2007 - 2011, 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
@@ -393,6 +393,9 @@ ExtraPushDone:
; They MUST be. If they are not, a GP fault will occur.
FXSTOR_RDI
;; UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
cld
;; UINT64 ExceptionData;
mov rax, ExceptData
push rax