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BaseTools: VPD Tool to allocate VPD region be aligned based on value type

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Base on build spec update, ASCII strings(“string”), will be byte aligned,
Unicode strings(L”string”) will be two-byte aligned, Byte arrays,
{0x00, 0x01} will be 8-byte aligned.
This patch is going to update VPD Tool to allocate VOID* PCDs to an offset
value that is aligned based in syntax of the PCD value.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <yonghong.zhu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19651 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Yonghong Zhu 2016-01-18 01:47:50 +00:00 committed by yzhu52
parent 5a13737abf
commit 22061fab23
1 changed files with 26 additions and 12 deletions
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28
BaseTools/Source/Python/BPDG/GenVpd.py
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@ -409,6 +409,20 @@ class GenVPD :
#
PCD.PcdUnpackValue = str(PCD.PcdValue)
#
# If value is Unicode string (e.g. L""), then use 2-byte alignment
# If value is byte array (e.g. {}), then use 8-byte alignment
#
PCD.PcdOccupySize = int(PCD.PcdSize)
if PCD.PcdUnpackValue.startswith("{"):
Alignment = 8
elif PCD.PcdUnpackValue.startswith("L"):
Alignment = 2
else:
Alignment = 1
if PCD.PcdOccupySize % Alignment != 0:
PCD.PcdOccupySize = (PCD.PcdOccupySize / Alignment + 1) * Alignment
#
# Translate PCD size string to an integer value.
PackSize = None
@ -490,7 +504,7 @@ class GenVPD :
for Pcd in self.PcdUnknownOffsetList :
Pcd.PcdBinOffset = NowOffset
Pcd.PcdOffset = str(hex(Pcd.PcdBinOffset))
NowOffset += Pcd.PcdBinSize
NowOffset += Pcd.PcdOccupySize
self.PcdFixedOffsetSizeList = self.PcdUnknownOffsetList
return
@ -514,14 +528,14 @@ class GenVPD :
None)
# Overlapped
if PcdNow.PcdBinOffset + PcdNow.PcdBinSize > PcdNext.PcdBinOffset :
if PcdNow.PcdBinOffset + PcdNow.PcdOccupySize > PcdNext.PcdBinOffset :
EdkLogger.error("BPDG", BuildToolError.ATTRIBUTE_GET_FAILURE,
"The offset of %s at line: %s is overlapped with %s at line: %s in file %s" % \
(PcdNow.PcdCName, PcdNow.Lineno, PcdNext.PcdCName, PcdNext.Lineno, PcdNext.FileName),
None)
# Has free space, raise a warning message
if PcdNow.PcdBinOffset + PcdNow.PcdBinSize < PcdNext.PcdBinOffset :
if PcdNow.PcdBinOffset + PcdNow.PcdOccupySize < PcdNext.PcdBinOffset :
EdkLogger.warn("BPDG", BuildToolError.ATTRIBUTE_GET_FAILURE,
"The offsets have free space of between %s at line: %s and %s at line: %s in file %s" % \
(PcdNow.PcdCName, PcdNow.Lineno, PcdNext.PcdCName, PcdNext.Lineno, PcdNext.FileName),
@ -547,7 +561,7 @@ class GenVPD :
countOfUnfixedList = 0
while(countOfUnfixedList < lenOfUnfixedList) :
eachUnfixedPcd = self.PcdUnknownOffsetList[countOfUnfixedList]
needFixPcdSize = eachUnfixedPcd.PcdBinSize
needFixPcdSize = eachUnfixedPcd.PcdOccupySize
# Not been fixed
if eachUnfixedPcd.PcdOffset == '*' :
# The offset un-fixed pcd can write into this free space
@ -572,7 +586,7 @@ class GenVPD :
LastOffset += needFixPcdSize
else :
# It can not insert into those two pcds, need to check still has other space can store it.
LastOffset = NowOffset + self.PcdFixedOffsetSizeList[FixOffsetSizeListCount].PcdBinSize
LastOffset = NowOffset + self.PcdFixedOffsetSizeList[FixOffsetSizeListCount].PcdOccupySize
FixOffsetSizeListCount += 1
break
@ -582,7 +596,7 @@ class GenVPD :
# No free space, smoothly connect with previous pcd.
elif LastOffset == NowOffset :
LastOffset = NowOffset + eachFixedPcd.PcdBinSize
LastOffset = NowOffset + eachFixedPcd.PcdOccupySize
FixOffsetSizeListCount += 1
# Usually it will not enter into this thunk, if so, means it overlapped.
else :
@ -601,7 +615,7 @@ class GenVPD :
LastPcd = self.PcdFixedOffsetSizeList[lenOfList-1]
NeedFixPcd = self.PcdUnknownOffsetList[0]
NeedFixPcd.PcdBinOffset = LastPcd.PcdBinOffset + LastPcd.PcdBinSize
NeedFixPcd.PcdBinOffset = LastPcd.PcdBinOffset + LastPcd.PcdOccupySize
NeedFixPcd.PcdOffset = str(hex(NeedFixPcd.PcdBinOffset))
# Insert this pcd into fixed offset pcd list's tail.