linux-kernel - Re: [PATCH] ARM: decompressor: do not copy source files while building

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Message-ID: <CAK7LNARgJ7GapsRNPyG18rs-uxnXuMrQRVP=y2dKLLNRjU8tbA@mail.gmail.com>
Date:   Fri, 25 Mar 2022 11:54:07 +0900
From:   Masahiro Yamada <masahiroy@...nel.org>
To:     "Russell King (Oracle)" <linux@...linux.org.uk>
Cc:     patches@....linux.org.uk,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: decompressor: do not copy source files while building

Hi Russell,


Was this issue fixed?
(I see nothing happened in linux-next yet)

I will not send a patch because I assume you will
fix this by yourself. If there is something you want
me, please let me know.

Thanks.
Masahiro Yamada






On Mon, Mar 14, 2022 at 1:35 AM Masahiro Yamada <masahiroy@...nel.org> wrote:
>
> On Fri, Mar 11, 2022 at 9:07 PM Russell King (Oracle)
> <linux@...linux.org.uk> wrote:
> >
> > On Sun, Oct 31, 2021 at 02:52:58AM +0900, Masahiro Yamada wrote:
> > > As commit 7ae4a78daacf ("ARM: 8969/1: decompressor: simplify libfdt
> > > builds") stated, copying source files during the build time may not
> > > end up with as clean code as expected.
> > >
> > > Do similar for the other library files for further cleanups of the
> > > Makefile and .gitignore.
> > >
> > > Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> >
> > Hi,
> >
> > I am now seeing the following every time I run a build:
> >
> >   GEN     Makefile
> >   CALL    .../linux-rmk/scripts/atomic/check-atomics.sh
> >   CALL    .../linux-rmk/scripts/checksyscalls.sh
> >   CHK     include/generated/compile.h
> >   Kernel: arch/arm/boot/Image is ready
> >   AS      arch/arm/boot/compressed/lib1funcs.o
> >   AS      arch/arm/boot/compressed/ashldi3.o
> >   AS      arch/arm/boot/compressed/bswapsdi2.o
> >   LD      arch/arm/boot/compressed/vmlinux
> >   OBJCOPY arch/arm/boot/zImage
> >   Kernel: arch/arm/boot/zImage is ready
> >
> > In other words, those three objects are always rebuilt even though
> > they haven't changed.
> >
> > I've tried removing the arch/arm/boot/compressed directory in the
> > build tree, but that doesn't make any difference.
> >
> > Running with V=2 shows:
> >
> >   AS      arch/arm/boot/compressed/lib1funcs.o - due to lib1funcs.o not in $(tar
> > gets)
> >   AS      arch/arm/boot/compressed/ashldi3.o - due to ashldi3.o not in $(targets)
> >   AS      arch/arm/boot/compressed/bswapsdi2.o - due to bswapsdi2.o not in $(targets)
> >
> > It looks to me like:
> > OBJS    += lib1funcs.o ashldi3.o bswapsdi2.o
> >
> > in your patch should have been added before:
> >
> > targets       := vmlinux vmlinux.lds piggy_data piggy.o \
> >                  head.o $(OBJS)
> >
> > Please confirm.
>
>
> Sorry for my late reply.
>
> Yes, you are right.
>
> OBJS    += lib1funcs.o ashldi3.o bswapsdi2.o
>
> should come before the 'targets' assignment.
>
>
>
>
>
> --
> Best Regards
> Masahiro Yamada



-- 
Best Regards
Masahiro Yamada