Re: [PATCH] BaseTools/VfrCompile: honor EXTRA_LDFLAGS

[Laszlo Ersek <lersek@redhat.com>]

On 08/22/18 18:34, Gao, Liming wrote:
> Reviewed-by: Liming Gao <liming.gao@intel.com>

Thanks!

> And, push at aa4e0df1f0c7ffdff07d7e382c9da89cbe207cdb

That's very kind of you! Thanks! :)

Laszlo

> Thanks
> Liming
>> -----Original Message-----
>> From: Laszlo Ersek [mailto:lersek@redhat.com]
>> Sent: Thursday, August 16, 2018 7:38 PM
>> To: edk2-devel-01 <edk2-devel@lists.01.org>
>> Cc: Gao, Liming <liming.gao@intel.com>; Zhu, Yonghong <yonghong.zhu@intel.com>
>> Subject: [PATCH] BaseTools/VfrCompile: honor EXTRA_LDFLAGS
>>
>> In commit 81502cee20ac ("BaseTools/Source/C: take EXTRA_LDFLAGS from the
>> caller", 2018-08-16), I missed that "VfrCompile/GNUmakefile" does not use
>> BUILD_LFLAGS in the APPLICATION linking rule, unlike "app.makefile" does.
>> Instead, "VfrCompile/GNUmakefile" uses the (undefined) LFLAGS macro.
>> Therefore commit 81502cee20ac did not cover the linking step of
>> VfrCompile.
>>
>> Thankfully, the structure of the linking rules is the same, between
>> "app.makefile" and "VfrCompile/GNUmakefile". Rename the undefined LFLAGS
>> macro in "VfrCompile/GNUmakefile" to VFR_LFLAGS (for consistency with
>> VFR_CXXFLAGS), and set it to EXTRA_LDFLAGS.
>>
>> As a result, we have:
>>
>>              | compilation                    | linking
>>   -----------+--------------------------------+----------------------
>>   VfrCompile | VFR_CXXFLAGS =                 | VFR_LFLAGS =
>>              | BUILD_OPTFLAGS =               | EXTRA_LDFLAGS
>>              | '-O2' + EXTRA_OPTFLAGS         |
>>   -----------+--------------------------------+----------------------
>>   other apps | BUILD_CFLAGS/BUILD_CXXFLAGS =  | BUILD_LFLAGS =
>>              | [...] + BUILD_OPTFLAGS =       | [...] + EXTRA_LDFLAGS
>>              | [...] + '-O2' + EXTRA_OPTFLAGS |
>>
>> This table shows
>> - that the VfrCompile compilation and linking flags are always a subset of
>>   the corresponding flags used by the other apps,
>> - and that the EXTRA flags are always at the end.
>>
>> Cc: Liming Gao <liming.gao@intel.com>
>> Cc: Yonghong Zhu <yonghong.zhu@intel.com>
>> Ref: https://bugzilla.redhat.com/show_bug.cgi?id=1540244
>> Fixes: 81502cee20ac4046f08bb4aec754c7091c8808dc
>> Contributed-under: TianoCore Contribution Agreement 1.1
>> Signed-off-by: Laszlo Ersek <lersek@redhat.com>
>> ---
>>
>> Notes:
>>     Repo:   https://github.com/lersek/edk2.git
>>     Branch: extra_flags_rhbz1540244_round2
>>
>>  BaseTools/Source/C/VfrCompile/GNUmakefile | 5 ++++-
>>  1 file changed, 4 insertions(+), 1 deletion(-)
>>
>> diff --git a/BaseTools/Source/C/VfrCompile/GNUmakefile b/BaseTools/Source/C/VfrCompile/GNUmakefile
>> index bbe562cbc54f..9273589ff805 100644
>> --- a/BaseTools/Source/C/VfrCompile/GNUmakefile
>> +++ b/BaseTools/Source/C/VfrCompile/GNUmakefile
>> @@ -28,6 +28,9 @@ VFR_CPPFLAGS = -DPCCTS_USE_NAMESPACE_STD $(BUILD_CPPFLAGS)
>>  # keep BUILD_OPTFLAGS last
>>  VFR_CXXFLAGS = $(BUILD_OPTFLAGS)
>>
>> +# keep EXTRA_LDFLAGS last
>> +VFR_LFLAGS = $(EXTRA_LDFLAGS)
>> +
>>  LINKER = $(BUILD_CXX)
>>
>>  EXTRA_CLEAN_OBJECTS = EfiVfrParser.cpp EfiVfrParser.h VfrParser.dlg VfrTokens.h VfrLexer.cpp VfrLexer.h VfrSyntax.cpp tokens.h
>> @@ -42,7 +45,7 @@ APPLICATION = $(MAKEROOT)/bin/$(APPNAME)
>>  all: $(MAKEROOT)/bin $(APPLICATION)
>>
>>  $(APPLICATION): $(OBJECTS)
>> -	$(LINKER) -o $(APPLICATION) $(LFLAGS) $(OBJECTS) -L$(MAKEROOT)/libs $(LIBS)
>> +	$(LINKER) -o $(APPLICATION) $(VFR_LFLAGS) $(OBJECTS) -L$(MAKEROOT)/libs $(LIBS)
>>
>>  VfrCompiler.o: ../Include/Common/BuildVersion.h
>>
>> --
>> 2.14.1.3.gb7cf6e02401b
>