Re: [PATCH] mips: decompressor: do not copy source files while building

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On Wed, Nov 10, 2021 at 5:56 PM Thomas Bogendoerfer
<tsbogend@xxxxxxxxxxxxxxxx> wrote:
>
> On Fri, Nov 05, 2021 at 11:38:14AM +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 mips to clean up the Makefile and .gitignore.
> >
> > Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> > ---
> >
> >  arch/mips/boot/compressed/.gitignore   |  3 ---
> >  arch/mips/boot/compressed/Makefile     | 12 ------------
> >  arch/mips/boot/compressed/ashldi3.c    |  2 ++
> >  arch/mips/boot/compressed/bswapsi.c    |  2 ++
> >  arch/mips/boot/compressed/uart-ath79.c |  2 ++
> >  scripts/remove-stale-files             |  5 +++++
> >  6 files changed, 11 insertions(+), 15 deletions(-)
> >  delete mode 100644 arch/mips/boot/compressed/.gitignore
> >  create mode 100644 arch/mips/boot/compressed/ashldi3.c
> >  create mode 100644 arch/mips/boot/compressed/bswapsi.c
> >  create mode 100644 arch/mips/boot/compressed/uart-ath79.c
> >
> > diff --git a/arch/mips/boot/compressed/.gitignore b/arch/mips/boot/compressed/.gitignore
> > deleted file mode 100644
> > index d358395614c9..000000000000
> > --- a/arch/mips/boot/compressed/.gitignore
> > +++ /dev/null
> > @@ -1,3 +0,0 @@
> > -# SPDX-License-Identifier: GPL-2.0-only
> > -ashldi3.c
> > -bswapsi.c
> > diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
> > index 3548b3b45269..e6584dab2360 100644
> > --- a/arch/mips/boot/compressed/Makefile
> > +++ b/arch/mips/boot/compressed/Makefile
> > @@ -50,20 +50,8 @@ vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)            += $(obj)/uart-alchemy.o
> >  vmlinuzobjs-$(CONFIG_ATH79)                     += $(obj)/uart-ath79.o
> >  endif
> >
> > -extra-y += uart-ath79.c
> > -$(obj)/uart-ath79.c: $(srctree)/arch/mips/ath79/early_printk.c
> > -     $(call cmd,shipped)
> > -
> >  vmlinuzobjs-$(CONFIG_KERNEL_XZ) += $(obj)/ashldi3.o
> >
> > -extra-y += ashldi3.c
> > -$(obj)/ashldi3.c: $(obj)/%.c: $(srctree)/lib/%.c FORCE
> > -     $(call if_changed,shipped)
> > -
> > -extra-y += bswapsi.c
> > -$(obj)/bswapsi.c: $(obj)/%.c: $(srctree)/arch/mips/lib/%.c FORCE
> > -     $(call if_changed,shipped)
> > -
> >  targets := $(notdir $(vmlinuzobjs-y))
> >
> >  targets += vmlinux.bin
> > diff --git a/arch/mips/boot/compressed/ashldi3.c b/arch/mips/boot/compressed/ashldi3.c
> > new file mode 100644
> > index 000000000000..f7bf6a7aae31
> > --- /dev/null
> > +++ b/arch/mips/boot/compressed/ashldi3.c
> > @@ -0,0 +1,2 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +#include "../../../../lib/ashldi3.c"
> > diff --git a/arch/mips/boot/compressed/bswapsi.c b/arch/mips/boot/compressed/bswapsi.c
> > new file mode 100644
> > index 000000000000..fdb9c6476904
> > --- /dev/null
> > +++ b/arch/mips/boot/compressed/bswapsi.c
> > @@ -0,0 +1,2 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +#include "../../lib/bswapsi.c"
> > diff --git a/arch/mips/boot/compressed/uart-ath79.c b/arch/mips/boot/compressed/uart-ath79.c
> > new file mode 100644
> > index 000000000000..d686820921be
> > --- /dev/null
> > +++ b/arch/mips/boot/compressed/uart-ath79.c
> > @@ -0,0 +1,2 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +#include "../../ath79/early_printk.c"
> > diff --git a/scripts/remove-stale-files b/scripts/remove-stale-files
> > index eb630ee287c3..c534fe1eac16 100755
> > --- a/scripts/remove-stale-files
> > +++ b/scripts/remove-stale-files
> > @@ -28,4 +28,9 @@ if [ -n "${building_out_of_srctree}" ]; then
> >       do
> >               rm -f arch/arm/boot/compressed/${f}
> >       done
> > +
> > +     for f in uart-ath79.c ashldi3.c bswapsi.c
> > +     do
> > +             rm -f arch/mips/boot/compressed/${f}
> > +     done
>
> hmm, isn't this the wrong action now that these files have been added
> to git ?
>
> Thomas.


Please note that the entire code block is enclosed by:

if [ -n "${building_out_of_srctree}" ]; then
           ...
fi


"building_out_of_srctree" is set when you are doing
out-of-tree build  (O=<output-dir>).

So, only the generated files are removed.




-- 
Best Regards
Masahiro Yamada



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