Re: [edk2-devel] [Patch] BaseTools: Fixed the mis-using strip() function issue.

["Bob Feng" <bob.c.feng@intel.com>]

Liming,

CmdSign[3:] means to get the CmdSign sub string from the 4th character to it end. The former code can make sure CmdSign starts with "/Fo", CmdSign[3:] is just to remove "/Fo".

The issue in this case is that the CmdSign is like "/FoF://abc//cde", and CmdSign.lstrip("/Fo") removes "/FoF". 

Thanks,
Bob

-----Original Message-----
From: Gao, Liming 
Sent: Sunday, July 21, 2019 8:30 PM
To: devel@edk2.groups.io; Feng, Bob C <bob.c.feng@intel.com>
Subject: RE: [edk2-devel] [Patch] BaseTools: Fixed the mis-using strip() function issue.

Bob:

> -----Original Message-----
> From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of 
> Bob Feng
> Sent: Sunday, July 21, 2019 11:55 AM
> To: devel@edk2.groups.io
> Cc: Gao, Liming <liming.gao@intel.com>; Feng, Bob C 
> <bob.c.feng@intel.com>
> Subject: [edk2-devel] [Patch] BaseTools: Fixed the mis-using strip() function issue.
> 
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2003
> 
> lstrip(parameter) do the match based on the char in parameter but not 
> only the whole parameter string.
> 
> In GenMake line 1082,
> CmdSign.lstrip('/Fo') will strip the '/' or 'F' or 'o' on the left of 
> CmdSign. This is not expected.
> 
> This patch is going to fix such issue.
> 
> Cc: Liming Gao <liming.gao@intel.com>
> Signed-off-by: Bob Feng <bob.c.feng@intel.com>
> ---
>  BaseTools/Source/Python/AutoGen/GenMake.py             | 2 +-
>  BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py | 5 ++++-
>  2 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py 
> b/BaseTools/Source/Python/AutoGen/GenMake.py
> index 212ca0fa7f..10e67f7dbb 100644
> --- a/BaseTools/Source/Python/AutoGen/GenMake.py
> +++ b/BaseTools/Source/Python/AutoGen/GenMake.py
> @@ -1077,11 +1077,11 @@ cleanlib:
>                          CmdTargetDict[CmdSign] = Item.replace(Temp, CmdSign)
>                      else:
>                          CmdTargetDict[CmdSign] = "%s %s" % (CmdTargetDict[CmdSign], SingleCommandList[-1])
>                      Index = CommandList.index(Item)
>                      CommandList.pop(Index)
> -                    if SingleCommandList[-1].endswith("%s%s.c" % (TAB_SLASH, CmdSumDict[CmdSign.lstrip('/Fo').rsplit(TAB_SLASH,
> 1)[0]])):
> +                    if SingleCommandList[-1].endswith("%s%s.c" % (TAB_SLASH, CmdSumDict[CmdSign[3:].rsplit(TAB_SLASH, 1)[0]])):

What mean CmdSign[3:]? Is it for root directory in Windows OS? Does it support the path in Linux OS?

Thanks
Liming

>                          Cpplist = CmdCppDict[T.Target.SubDir]
>                          Cpplist.insert(0, '$(OBJLIST_%d): $(COMMON_DEPS)' % list(self.ObjTargetDict.keys()).index(T.Target.SubDir))
>                          T.Commands[Index] = '%s\n\t%s' % (' \\\n\t'.join(Cpplist), CmdTargetDict[CmdSign])
>                      else:
>                          T.Commands.pop(Index) diff --git 
> a/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py 
> b/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
> index c9c476cf61..f43743dff4 100644
> --- a/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
> +++ b/BaseTools/Source/Python/GenFds/GenFdsGlobalVariable.py
> @@ -791,11 +791,14 @@ class GenFdsGlobalVariable:
>      #
>      @staticmethod
>      def GetPcdValue (PcdPattern):
>          if PcdPattern is None:
>              return None
> -        PcdPair = PcdPattern.lstrip('PCD(').rstrip(')').strip().split('.')
> +        if PcdPattern.startswith('PCD('):
> +            PcdPair = PcdPattern[4:].rstrip(')').strip().split('.')
> +        else:
> +            PcdPair = PcdPattern.strip().split('.')
>          TokenSpace = PcdPair[0]
>          TokenCName = PcdPair[1]
> 
>          for Arch in GenFdsGlobalVariable.ArchList:
>              Platform = 
> GenFdsGlobalVariable.WorkSpace.BuildObject[GenFdsGlobalVariable.Active
> Platform, Arch, GenFdsGlobalVariable.TargetName, 
> GenFdsGlobalVariable.ToolChainTag]
> --
> 2.18.0.windows.1
> 
> 
>