Re: [PATCH 1/4] Adds -Wshadow=local on KBUILD_HOSTCFLAGS

[Masahiro Yamada]

On Wed, Oct 17, 2018 at 5:11 PM Borislav Petkov <bp@xxxxxxxxx> wrote:
>
> On Tue, Oct 16, 2018 at 09:08:09PM -0300, Leonardo BrÃs wrote:
> > Adds -Wshadow=local on KBUILD_HOSTCFLAGS to show shadow warnings
> > on tools built for HOST.
> >
> > Signed-off-by: Leonardo BrÃs <leobras.c@xxxxxxxxx>
> > ---
> >  Makefile | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/Makefile b/Makefile
> > index e8b599b4dcde..fb0a9ac195e7 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -360,7 +360,7 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS 2>/dev/null)
> >
> >  HOSTCC       = gcc
> >  HOSTCXX      = g++
> > -KBUILD_HOSTCFLAGS   := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
> > +KBUILD_HOSTCFLAGS   := -Wall -Wshadow=local -Wmissing-prototypes -Wstrict-prototypes -O2 \
> >               -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
> >               $(HOSTCFLAGS)
> >  KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
> > --
>
> You might wanna take a look at scripts/Makefile.extrawarn which already
> has -Wshadow.


scripts/Makefile.extrawarn provides options for the target compiler (CC),
whereas this patch adds -Wshadow=local for the host compiler (HOSTCC).



-- 
Best Regards
Masahiro Yamada