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

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Message-ID: <CAK7LNASgXe1yPS1orykYAm1P9bkhTGdFSFrpQEJLuG-KX+VJPA@mail.gmail.com>
Date:   Thu, 31 Mar 2022 18:19:38 +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

On Thu, Mar 31, 2022 at 1:22 AM Russell King (Oracle)
<linux@...linux.org.uk> wrote:
>
> Hi,
>
> Your reply was too late for me, I've been away on vacation from 14th
> March until now... and now I've got a whole truck-load of catch-up, so
> it's likely I'll forget to sort this. Please send a patch to fix it,
> thanks.

Done.

https://www.armlinux.org.uk/developer/patches/viewpatch.php?id=9189/1


Thanks.




>
> On Fri, Mar 25, 2022 at 11:54:07AM +0900, Masahiro Yamada wrote:
> > 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
> >
>
> --
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!



-- 
Best Regards
Masahiro Yamada