linux-kernel - Re: [PATCH] arm64: clean vdso files

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Message-ID: <20210810135236.GA3101@willie-the-truck>
Date:   Tue, 10 Aug 2021 14:52:36 +0100
From:   Will Deacon <will@...nel.org>
To:     Andrew Delgadillo <adelg@...gle.com>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        stable@...r.kernel.org, masahiroy@...nel.org
Subject: Re: [PATCH] arm64: clean vdso files

[+Masahiro]

On Mon, Aug 09, 2021 at 07:14:14PM +0000, Andrew Delgadillo wrote:
> commit a5b8ca97fbf8 ("arm64: do not descend to vdso directories twice")
> changes the cleaning behavior of arm64's vdso files, in that vdso.lds,
> vdso.so, and vdso.so.dbg are not removed upon a 'make clean/mrproper':
> 
> $ make defconfig ARCH=arm64
> $ make ARCH=arm64
> $ make mrproper ARCH=arm64
> $ git clean -nxdf
> Would remove arch/arm64/kernel/vdso/vdso.lds
> Would remove arch/arm64/kernel/vdso/vdso.so
> Would remove arch/arm64/kernel/vdso/vdso.so.dbg
> 
> To remedy this, manually descend into arch/arm64/kernel/vdso upon
> cleaning.
> 
> After this commit:
> $ make defconfig ARCH=arm64
> $ make ARCH=arm64
> $ make mrproper ARCH=arm64
> $ git clean -nxdf
> <empty>

Well spotted!

> Signed-off-by: Andrew Delgadillo <adelg@...gle.com>
> ---
>  arch/arm64/Makefile | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
> index b52481f0605d..ef6598cb5a9b 100644
> --- a/arch/arm64/Makefile
> +++ b/arch/arm64/Makefile
> @@ -181,6 +181,7 @@ archprepare:
>  # We use MRPROPER_FILES and CLEAN_FILES now
>  archclean:
>  	$(Q)$(MAKE) $(clean)=$(boot)
> +	$(Q)$(MAKE) $(clean)=arch/arm64/kernel/vdso

I think we also need to clean the vdso32 directory here. Please can you
send a v2 with that added?

Cheers,

Will