[edk2-devel] [PATCH] IntelFsp2Pkg: PatchFv parseInfFile function modification

[Chiu, Chasel]

Thanks Ashraf.
Adding my comments below inline.


> -----Original Message-----
> From: S, Ashraf Ali <ashraf.ali.s at intel.com>
> Sent: Sunday, July 4, 2021 7:23 PM
> To: devel at edk2.groups.io
> Cc: S, Ashraf Ali <ashraf.ali.s at intel.com>; Ni, Ray <ray.ni at intel.com>; Chiu,
> Chasel <chasel.chiu at intel.com>; Desimone, Nathaniel L
> <nathaniel.l.desimone at intel.com>; Zeng, Star <star.zeng at intel.com>
> Subject: [PATCH] IntelFsp2Pkg: PatchFv parseInfFile function modification
> 
> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3476
> 
> parseInfFile currently reading the EFI_BASE_ADDRESS from INF, once the
> address found still it's continues to read the complete inf file which is not
> required. once the EFI_BASE_ADDRESS read from the INF no need to read
> the INF further.
> MSFT compiler can generate the map file address 8 or 16 based on which
> architecture the INF is compiler. currently it's support for IA32, it can be
> update the X64 in future.
> modification of few typo errors in parseModMapFile, getCurr function
> required
> 
> Signed-off-by: Ashraf Ali S <ashraf.ali.s at intel.com>
> Cc: Ray Ni <ray.ni at intel.com>
> Cc: Chasel Chiu <chasel.chiu at intel.com>
> Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
> Cc: Star Zeng <star.zeng at intel.com>
> ---
>  IntelFsp2Pkg/Tools/PatchFv.py | 17 +++++++++--------
>  1 file changed, 9 insertions(+), 8 deletions(-)
> 
> diff --git a/IntelFsp2Pkg/Tools/PatchFv.py b/IntelFsp2Pkg/Tools/PatchFv.py
> index 112de4077a..236019b62d 100644
> --- a/IntelFsp2Pkg/Tools/PatchFv.py
> +++ b/IntelFsp2Pkg/Tools/PatchFv.py
> @@ -1,6 +1,6 @@
>  ## @ PatchFv.py
>  #
> -# Copyright (c) 2014 - 2019, Intel Corporation. All rights reserved.<BR>
> +# Copyright (c) 2014 - 2021, Intel Corporation. All rights
> +reserved.<BR>
>  # SPDX-License-Identifier: BSD-2-Clause-Patent  #  ## @@ -297,17 +297,17
> @@ class Symbols:
>          #
>          fvOffset    = self.getFvOffsetInFd(infFile[0:-4] + ".Fv")
>          fdIn        = open(infFile, "r")
> -        rptLine     = fdIn.readline()
> +        rptLines     = fdIn.readlines()




The target line "EFI_BASE_ADDRESS = 0x********" is usually the second line in the generated INF file, do you think we really need to change to "readlines()" to read whole file?
It looks to me original readline() implementation is better in efficiency, but just need to break when the match found.




>          self.fdBase = 0xFFFFFFFF
> -        while (rptLine != "" ):
> +        for line in rptLines:
>              #EFI_BASE_ADDRESS = 0xFFFDF400
> -            match = re.match("^EFI_BASE_ADDRESS\s*=\s*(0x[a-fA-F0-9]+)",
> rptLine)
> +            match =
> + re.match("^EFI_BASE_ADDRESS\s*=\s*(0x[a-fA-F0-9]+)", line)
>              if match is not None:
>                  self.fdBase = int(match.group(1), 16) - fvOffset
> -            rptLine  = fdIn.readline()
> +                break
>          fdIn.close()
>          if self.fdBase == 0xFFFFFFFF:
> -            raise Exception("Could not find EFI_BASE_ADDRESS in INF file!" %
> fvFile)
> +            raise Exception("Could not find EFI_BASE_ADDRESS in INF
> + file!" % infFile)
>          return 0
> 
>      #
> @@ -402,6 +402,7 @@ class Symbols:
>      #
>      #  retval      0           Parsed MOD MAP file successfully
>      #  retval      1           There is no moduleEntryPoint in modSymbols
> +    #  retval      2           There is no offset for moduleEntryPoint in modSymbols
>      #
>      def parseModMapFile(self, moduleName, mapFile):
>          #
> @@ -426,7 +427,7 @@ class Symbols:
>          else:
>              #MSFT
>              #0003:00000190       _gComBase                  00007a50     SerialPo
> -            patchMapFileMatchString =  "^\s[0-9a-fA-F]{4}:[0-9a-fA-
> F]{8}\s+(\w+)\s+([0-9a-fA-F]{8}\s+)"
> +            patchMapFileMatchString =  "^\s[0-9a-fA-F]{4}:[0-9a-fA-
> F]{8}\s+(\w+)\s+([0-9a-fA-F]{8,16}\s+)"
>              matchKeyGroupIndex = 1
>              matchSymbolGroupIndex  = 2
>              prefix = ''
> @@ -498,7 +499,7 @@ class Symbols:
>      #
>      #  Get current character
>      #
> -    #  retval      elf.string[self.index]
> +    #  retval      self.string[self.index]
>      #  retval      ''                       Exception
>      #
>      def getCurr(self):
> --
> 2.30.2.windows.1



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