[edk2-devel] [PATCH] BaseTools: Fix an incremental build issue caused by macro in #include
Philippe Mathieu-Daudé
philmd at redhat.com
Wed Oct 16 11:53:58 UTC 2019
Hi Derek,
On 10/16/19 8:17 AM, Lin, Derek (HPS SW) wrote:
> When c/h file use macro after #include, for example,
Apparently you forgot to write your example.
> In this case, GenMake is not able to create a healthy dependency for the c
> file. GenMake used to add $(FORCE_REBUILD) dependency in the c file, this
> guarantee the c file is always compiled in incremental build. But, this
> function is broken since 05217d210e8da37b47d0be58ec363f7af2fa1c18 which
> enable /MP for MSVC compiler, in order to compile multiple c files in one
> command multi-processing. The fix here is adding '$(FORCE_REBUILD)' back to
> retain the original function.
>
> Line number 1728 and 978 are the code pieces which handle this logic.
>
> Signed-off-by: Derek Lin <derek.lin2 at hpe.com>
> ---
> BaseTools/Source/Python/AutoGen/GenMake.py | 18 +++++++++++-------
> 1 file changed, 11 insertions(+), 7 deletions(-)
>
> diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py b/BaseTools/Source/Python/AutoGen/GenMake.py
> index 97ba158ff2..59a01a7f24 100755
> --- a/BaseTools/Source/Python/AutoGen/GenMake.py
> +++ b/BaseTools/Source/Python/AutoGen/GenMake.py
> @@ -1080,13 +1080,17 @@ cleanlib:
> else:
> CmdCppDict[item.Target.SubDir] = ['$(MAKE_FILE)', Path]
> if CppPath.Path in DependencyDict:
> - for Temp in DependencyDict[CppPath.Path]:
> - try:
> - Path = self.PlaceMacro(Temp.Path, self.Macros)
> - except:
> - continue
> - if Path not in (self.CommonFileDependency + CmdCppDict[item.Target.SubDir]):
> - CmdCppDict[item.Target.SubDir].append(Path)
> + if '$(FORCE_REBUILD)' in DependencyDict[CppPath.Path]:
> + if '$(FORCE_REBUILD)' not in (self.CommonFileDependency + CmdCppDict[item.Target.SubDir]):
> + CmdCppDict[item.Target.SubDir].append('$(FORCE_REBUILD)')
> + else:
> + for Temp in DependencyDict[CppPath.Path]:
> + try:
> + Path = self.PlaceMacro(Temp.Path, self.Macros)
> + except:
> + continue
> + 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[:]:
>
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