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Modify GenFvImage tool to record the largest alignment of all the FFS files in the FV to FvHeader alignment attribute. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1876 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2006-10-31 08:28:18 +00:00
parent d66974717c
commit d3f7534772
1 changed files with 35 additions and 3 deletions
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38
Tools/CCode/Source/GenFvImage/GenFvImageLib.c
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@ -48,7 +48,7 @@ Abstract:
#include "EfiCompress.h"
#include "WinNtInclude.h"
static UINT32 MaxFfsAlignment = 0;
//
// Local function prototypes
//
@ -1031,9 +1031,9 @@ Returns:
case 0:
//
// 1 byte alignment
// 8 byte alignment, mini alignment requirement for FFS file.
//
*Alignment = (1 << 0);
*Alignment = (1 << 3);
break;
case 1:
@ -1741,6 +1741,13 @@ Returns:
free (FileBuffer);
return EFI_ABORTED;
}
//
// Find the largest alignment of all the FFS files in the FV
//
if (CurrentFileAlignment > MaxFfsAlignment) {
MaxFfsAlignment = CurrentFileAlignment;
}
//
// Add pad file if necessary
//
@ -2645,6 +2652,31 @@ Returns:
//
*SymImageSize = SymImageMemoryFile.CurrentFilePointer - SymImageMemoryFile.FileImage;
//
// Update FV Alignment attribute to the largest alignment of all the FFS files in the FV
//
if (FvHeader->Attributes | EFI_FVB_ALIGNMENT_CAP) {
for (Index = 1; Index <= 16; Index ++) {
if ((1 << Index) < MaxFfsAlignment) {
//
// Unset the unsupported alignment attribute.
//
FvHeader->Attributes = FvHeader->Attributes & ~((1 << Index) * EFI_FVB_ALIGNMENT_CAP);
} else {
//
// Set the supported alignment attribute.
//
FvHeader->Attributes = FvHeader->Attributes | ((1 << Index) * EFI_FVB_ALIGNMENT_CAP);
}
}
//
// Update Checksum for FvHeader
//
FvHeader->Checksum = 0;
FvHeader->Checksum = CalculateChecksum16 ((UINT16 *) FvHeader, FvHeader->HeaderLength / sizeof (UINT16));
}
return EFI_SUCCESS;
}