sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

A complement fix for revision 11664 to update GCC assembly files : clear the direction flag in interrupt/exception handlers' assembly entry code before calling C functions to follow the UEFI calling convention.

Browse Source 
Signed-off-by: rsun3
Reviewed-by:  jyao1


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11670 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
rsun3
2011-05-17 08:35:20 +00:00
parent 8b6d0c057f
commit 24f7e42cb7
4 changed files with 16 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
MdeModulePkg/Universal/DebugSupportDxe/Ia32/AsmFuncs.S
View File

@@ -1,7 +1,7 @@
#/**@file
# Low leve IA32 specific debug support functions.
#
# Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2006 - 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
@@ -276,6 +276,9 @@ ASM_PFX(CommonIdtEntry):
# They MUST be. If they are not, a GP fault will occur.
fxsave (%edi)
## UEFI calling convention for IA32 requires that Direction flag in EFLAGs is clear
cld
## UINT32 ExceptionData;
mov 0x0,%eax
push %eax

5
MdeModulePkg/Universal/DebugSupportDxe/X64/AsmFuncs.S
View File

@@ -1,7 +1,7 @@
///**@file
// Low leve x64 specific debug support functions.
//
// Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
// Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
// Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@@ -357,6 +357,9 @@ ExtraPushDone:
# FXSTOR_RDI
fxsave (%rdi)
// UEFI calling convention for x64 requires that Direction flag in EFLAGs is clear
cld
// UINT64 ExceptionData;
movq ASM_PFX(ExceptData)(%rip), %rax
pushq %rax