linux-kernel - Re: [PATCH] kbuild: flatten KBUILD

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <CAK7LNATPM=NhVnHnoyKv=kUEmNru7-Z9oNKMe7MChidRJfECvQ@mail.gmail.com>
Date:   Fri, 21 Jul 2023 23:27:44 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     Alexey Dobriyan <adobriyan@...il.com>
Cc:     Nicolas Schier <nicolas@...sle.eu>, akpm@...ux-foundation.org,
        nathan@...nel.org, ndesaulniers@...gle.com,
        linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org
Subject: Re: [PATCH] kbuild: flatten KBUILD_CFLAGS

On Sat, Jul 15, 2023 at 2:45 AM Alexey Dobriyan <adobriyan@...il.com> wrote:
>
> On Fri, Jul 14, 2023 at 12:42:11PM +0200, Nicolas Schier wrote:
> > On Thu, Jul 13, 2023 at 09:52:28PM +0300, Alexey Dobriyan wrote:
> > > Make it slightly easier to see which compiler options are added and
> > > removed (and not worry about column limit too!).
> > >
> > > Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
> > > ---
> > >
> > >  Makefile |   22 +++++++++++++++++-----
> > >  1 file changed, 17 insertions(+), 5 deletions(-)
> > >
> > > --- a/Makefile
> > > +++ b/Makefile
> > > @@ -555,11 +555,23 @@ LINUXINCLUDE    := \
> > >             $(USERINCLUDE)
> > >
> > >  KBUILD_AFLAGS   := -D__ASSEMBLY__ -fno-PIE
> > > -KBUILD_CFLAGS   := -Wall -Wundef -Werror=strict-prototypes -Wno-trigraphs \
> > > -              -fno-strict-aliasing -fno-common -fshort-wchar -fno-PIE \
> > > -              -Werror=implicit-function-declaration -Werror=implicit-int \
> > > -              -Werror=return-type -Wno-format-security -funsigned-char \
> > > -              -std=gnu11
> > > +
> > > +KBUILD_CFLAGS :=
> > > +KBUILD_CFLAGS += -std=gnu11
> >
> > If you want to put -std at top, on contrast to the sorted options below,
> > you could also merge the two lines above.
>
> I don't know. Standard choice is arguably the most important option
> so I put it first.
>
> > > +KBUILD_CFLAGS += -fshort-wchar
> > > +KBUILD_CFLAGS += -funsigned-char
> > > +KBUILD_CFLAGS += -fno-common
> > > +KBUILD_CFLAGS += -fno-PIE
> > > +KBUILD_CFLAGS += -fno-strict-aliasing
> > > +KBUILD_CFLAGS += -Wall
> > > +KBUILD_CFLAGS += -Wundef
> > > +KBUILD_CFLAGS += -Werror=implicit-function-declaration
> > > +KBUILD_CFLAGS += -Werror=implicit-int
> > > +KBUILD_CFLAGS += -Werror=return-type
> > > +KBUILD_CFLAGS += -Werror=strict-prototypes
> > > +KBUILD_CFLAGS += -Wno-format-security
> > > +KBUILD_CFLAGS += -Wno-trigraphs


Applied to linux-kbuild.
Thanks.


-- 
Best Regards
Masahiro Yamada