Re: [Patch] BaseTools:Enable the /MP option of MSVC compiler

["Gao, Liming" <liming.gao@intel.com>]

Bob:
  How about use /MP option without process number? The compiler will retrieves the number of effective processors on your computer. 
  And, move this option into CC_FLAGS in tools_def.txt. If so, platform can override it in platform DSC file. 

  Last, please provide the performance data with this option. 

Thanks
Liming
> -----Original Message-----
> From: Feng, Bob C
> Sent: Friday, March 29, 2019 8:30 PM
> To: edk2-devel@lists.01.org
> Cc: Fan, ZhijuX <zhijux.fan@intel.com>; Feng, Bob C <bob.c.feng@intel.com>; Gao, Liming <liming.gao@intel.com>
> Subject: [Patch] BaseTools:Enable the /MP option of MSVC compiler
> 
> From: Zhiju Fan <zhijux.fan@intel.com>
> 
> https://bugzilla.tianocore.org/show_bug.cgi?id=1672
> The /MP option of MSVC compiler can reduce the total
> time to compile the source files on the command line.
> 
> This patch is going to enable this MSVC option in BaseTools.
> 
> Cc: Bob Feng <bob.c.feng@intel.com>
> Cc: Liming Gao <liming.gao@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Zhiju.Fan <zhijux.fan@intel.com>
> ---
>  BaseTools/Conf/build_rule.template         |  2 +-
>  BaseTools/Source/Python/AutoGen/GenMake.py | 81 ++++++++++++++++++++--
>  2 files changed, 75 insertions(+), 8 deletions(-)
> 
> diff --git a/BaseTools/Conf/build_rule.template b/BaseTools/Conf/build_rule.template
> index e56b1d9c59..e7d736740f 100755
> --- a/BaseTools/Conf/build_rule.template
> +++ b/BaseTools/Conf/build_rule.template
> @@ -127,11 +127,11 @@
> 
>      <OutputFile>
>          $(OUTPUT_DIR)(+)${s_dir}(+)${s_base}.obj
> 
>      <Command.MSFT, Command.INTEL>
> -        "$(CC)" /Fo${dst} $(CC_FLAGS) $(INC) ${src}
> +        "$(CC)" /MP7 /Fo${d_path}\ $(CC_FLAGS) $(INC) ${src}
> 
>      <Command.GCC, Command.RVCT>
>          # For RVCTCYGWIN CC_FLAGS must be first to work around pathing issues
>          "$(CC)" $(CC_FLAGS) -c -o ${dst} $(INC) ${src}
> 
> diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py b/BaseTools/Source/Python/AutoGen/GenMake.py
> index b441817b52..04951346ad 100644
> --- a/BaseTools/Source/Python/AutoGen/GenMake.py
> +++ b/BaseTools/Source/Python/AutoGen/GenMake.py
> @@ -433,11 +433,11 @@ cleanlib:
>          self.BuildTargetList = []           # [target string]
>          self.PendingBuildTargetList = []    # [FileBuildRule objects]
>          self.CommonFileDependency = []
>          self.FileListMacros = {}
>          self.ListFileMacros = {}
> -
> +        self.ObjTargetDict = {}
>          self.FileCache = {}
>          self.LibraryBuildCommandList = []
>          self.LibraryFileList = []
>          self.LibraryMakefileList = []
>          self.LibraryBuildDirectoryList = []
> @@ -616,10 +616,15 @@ cleanlib:
>                  ListFileName,
>                  "\n".join(self.ListFileMacros[ListFileMacro]),
>                  False
>                  )
> 
> +        # Generate objlist used to create .obj file
> +        for Type in self.ObjTargetDict:
> +            NewLine = ' '.join(list(self.ObjTargetDict[Type]))
> +            FileMacroList.append("OBJLIST_%s = %s" % (list(self.ObjTargetDict.keys()).index(Type), NewLine))
> +
>          BcTargetList = []
> 
>          MakefileName = self._FILE_NAME_[self._FileType]
>          LibraryMakeCommandList = []
>          for D in self.LibraryBuildDirectoryList:
> @@ -925,17 +930,22 @@ cleanlib:
>          # Extract common files list in the dependency files
>          #
>          for File in DepSet:
>              self.CommonFileDependency.append(self.PlaceMacro(File.Path, self.Macros))
> 
> +        CmdSumDict = {}
> +        CmdTargetDict = {}
> +        CmdCppDict = {}
> +        DependencyDict = FileDependencyDict.copy()
>          for File in FileDependencyDict:
>              # skip non-C files
>              if File.Ext not in [".c", ".C"] or File.Name == "AutoGen.c":
>                  continue
>              NewDepSet = set(FileDependencyDict[File])
>              NewDepSet -= DepSet
>              FileDependencyDict[File] = ["$(COMMON_DEPS)"] + list(NewDepSet)
> +            DependencyDict[File] = list(NewDepSet)
> 
>          # Convert target description object to target string in makefile
>          for Type in self._AutoGenObject.Targets:
>              for T in self._AutoGenObject.Targets[Type]:
>                  # Generate related macros if needed
> @@ -943,15 +953,25 @@ cleanlib:
>                      self.FileListMacros[T.FileListMacro] = []
>                  if T.GenListFile and T.ListFileMacro not in self.ListFileMacros:
>                      self.ListFileMacros[T.ListFileMacro] = []
>                  if T.GenIncListFile and T.IncListFileMacro not in self.ListFileMacros:
>                      self.ListFileMacros[T.IncListFileMacro] = []
> +                if self._AutoGenObject.BuildRuleFamily == TAB_COMPILER_MSFT and Type == TAB_C_CODE_FILE:
> +                    NewFile = self.PlaceMacro(str(T), self.Macros)
> +                    if self.ObjTargetDict.get(T.Target.SubDir):
> +                        self.ObjTargetDict[T.Target.SubDir].add(NewFile)
> +                    else:
> +                        self.ObjTargetDict[T.Target.SubDir] = set()
> +                        self.ObjTargetDict[T.Target.SubDir].add(NewFile)
> 
>                  Deps = []
> +                CCodeDeps = []
>                  # Add force-dependencies
>                  for Dep in T.Dependencies:
>                      Deps.append(self.PlaceMacro(str(Dep), self.Macros))
> +                    if Dep != '$(MAKE_FILE)':
> +                        CCodeDeps.append(self.PlaceMacro(str(Dep), self.Macros))
>                  # Add inclusion-dependencies
>                  if len(T.Inputs) == 1 and T.Inputs[0] in FileDependencyDict:
>                      for F in FileDependencyDict[T.Inputs[0]]:
>                          Deps.append(self.PlaceMacro(str(F), self.Macros))
>                  # Add source-dependencies
> @@ -971,16 +991,63 @@ cleanlib:
>                  if T.GenFileListMacro:
>                      Deps.append("$(%s)" % T.FileListMacro)
>                      if Type in [TAB_OBJECT_FILE, TAB_STATIC_LIBRARY]:
>                          Deps.append("$(%s)" % T.ListFileMacro)
> 
> -                TargetDict = {
> -                    "target"    :   self.PlaceMacro(T.Target.Path, self.Macros),
> -                    "cmd"       :   "\n\t".join(T.Commands),
> -                    "deps"      :   Deps
> -                }
> -                self.BuildTargetList.append(self._BUILD_TARGET_TEMPLATE.Replace(TargetDict))
> +                if self._AutoGenObject.BuildRuleFamily == TAB_COMPILER_MSFT and Type == TAB_C_CODE_FILE:
> +                    T, CmdTarget, CmdTargetDict, CmdCppDict = self.ParserCCodeFile(T, Type, CmdSumDict, CmdTargetDict,
> CmdCppDict, DependencyDict)
> +                    TargetDict = {"target": self.PlaceMacro(T.Target.Path, self.Macros), "cmd": "\n\t".join(T.Commands),"deps":
> CCodeDeps}
> +                    CmdLine = self._BUILD_TARGET_TEMPLATE.Replace(TargetDict).rstrip().replace('\t$(OBJLIST', '$(OBJLIST')
> +                    if T.Commands:
> +                        CmdLine = '%s%s' %(CmdLine, TAB_LINE_BREAK)
> +                    if CCodeDeps or CmdLine:
> +                        self.BuildTargetList.append(CmdLine)
> +                else:
> +                    TargetDict = {"target": self.PlaceMacro(T.Target.Path, self.Macros), "cmd": "\n\t".join(T.Commands),"deps": Deps}
> +                    self.BuildTargetList.append(self._BUILD_TARGET_TEMPLATE.Replace(TargetDict))
> +
> +    def ParserCCodeFile(self, T, Type, CmdSumDict, CmdTargetDict, CmdCppDict, DependencyDict):
> +        if not CmdSumDict:
> +            for item in self._AutoGenObject.Targets[Type]:
> +                CmdSumDict[item.Target.SubDir] = item.Target.BaseName
> +                for CppPath in item.Inputs:
> +                    Path = self.PlaceMacro(CppPath.Path, self.Macros)
> +                    if CmdCppDict.get(item.Target.SubDir):
> +                        CmdCppDict[item.Target.SubDir].append(Path)
> +                    else:
> +                        CmdCppDict[item.Target.SubDir] = ['$(MAKE_FILE)', Path]
> +                    if CppPath.Path in DependencyDict:
> +                        for Temp in DependencyDict[CppPath.Path]:
> +                            Path = self.PlaceMacro(Temp.Path, self.Macros)
> +                            if Path not in (self.CommonFileDependency + CmdCppDict[item.Target.SubDir]):
> +                                CmdCppDict[item.Target.SubDir].append(Path)
> +        if T.Commands:
> +            CommandList = T.Commands[:]
> +            for Item in CommandList[:]:
> +                SingleCommandList = Item.split()
> +                if len(SingleCommandList) > 0 and '$(CC)' in SingleCommandList[0]:
> +                    for Temp in SingleCommandList:
> +                        if Temp.startswith('/Fo'):
> +                            CmdSign = '%s%s' % (Temp.rsplit(TAB_SLASH, 1)[0], TAB_SLASH)
> +                            break
> +                    else: continue
> +                    if CmdSign not in list(CmdTargetDict.keys()):
> +                        CmdLine = Item.replace(Temp, CmdSign)
> +                        if GlobalData.gOptions.ThreadNumber:
> +                            CmdLine = CmdLine.replace('/MP7', '%s%d' % ('/MP', GlobalData.gOptions.ThreadNumber))
> +                        CmdTargetDict[CmdSign] = CmdLine
> +                    else:
> +                        CmdTargetDict[CmdSign] = "%s %s" % (CmdTargetDict[CmdSign], SingleCommandList[-1])
> +                    Index = CommandList.index(Item)
> +                    CommandList.pop(Index)
> +                    if SingleCommandList[-1].endswith("%s%s.c" % (TAB_SLASH, CmdSumDict[CmdSign.lstrip('/Fo').rsplit(TAB_SLASH,
> 1)[0]])):
> +                        Cpplist = CmdCppDict[T.Target.SubDir]
> +                        Cpplist.insert(0, '$(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)
> +        return T, CmdSumDict, CmdTargetDict, CmdCppDict
> 
>      ## For creating makefile targets for dependent libraries
>      def ProcessDependentLibrary(self):
>          for LibraryAutoGen in self._AutoGenObject.LibraryAutoGenList:
>              if not LibraryAutoGen.IsBinaryModule:
> --
> 2.20.1.windows.1