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MdeModulePkg DxeIpl: Fix IA32 build failure with GCC 5.1.1

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Got the build failure feedback below, this patch is to fix that.

This broke the IA32 Ovmf build for me, with GCC 5.1.1 (Fedora 22):

/home/dwmw2/git/edk2/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c:377:7:
error: ‘PageTables’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
       AsmWriteCr3 (PageTables);
       ^
/home/dwmw2/git/edk2/MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c:224:9:
note: ‘PageTables’ was declared here
   UINTN                     PageTables;
         ^
cc1: all warnings being treated as errors

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Qiu Shumin <shumin.qiu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18190 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Star Zeng 2015-08-07 23:53:53 +00:00 committed by lzeng14
parent 64748d26a6
commit 09e4a8fd95
1 changed files with 1 additions and 0 deletions
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1
MdeModulePkg/Core/DxeIplPeim/Ia32/DxeLoadFunc.c
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@ -361,6 +361,7 @@ HandOffToDxeCore (
TopOfStack = BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT;
TopOfStack = (EFI_PHYSICAL_ADDRESS) (UINTN) ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
PageTables = 0;
BuildPageTablesIa32Pae = (BOOLEAN) (PcdGetBool (PcdSetNxForStack) && IsIa32PaeSupport () && IsExecuteDisableBitAvailable ());
if (BuildPageTablesIa32Pae) {
PageTables = Create4GPageTablesIa32Pae (BaseOfStack, STACK_SIZE);