linux-kernel - Re: [PATCH] arm64: vdso: Cleanup Makefiles.

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Date:   Fri, 19 Jul 2019 09:04:36 +0100
From:   Will Deacon <will@...nel.org>
To:     Vincenzo Frascino <vincenzo.frascino@....com>
Cc:     linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, catalin.marinas@....com,
        will.deacon@....com, arnd@...db.de, linux@...linux.org.uk,
        daniel.lezcano@...aro.org, tglx@...utronix.de, salyzyn@...roid.com,
        pcc@...gle.com, 0x7f454c46@...il.com, linux@...musvillemoes.dk,
        huw@...eweavers.com, sthotton@...vell.com, andre.przywara@....com,
        luto@...nel.org, john.stultz@...aro.org, naohiro.aota@....com,
        yamada.masahiro@...ionext.com
Subject: Re: [PATCH] arm64: vdso: Cleanup Makefiles.

On Thu, Jul 18, 2019 at 12:41:21PM +0100, Vincenzo Frascino wrote:
> diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
> index 21009ed5a755..6c4e496309c4 100644
> --- a/arch/arm64/kernel/vdso32/Makefile
> +++ b/arch/arm64/kernel/vdso32/Makefile
> @@ -155,17 +155,17 @@ $(asm-obj-vdso): %.o: %.S FORCE
>  	$(call if_changed_dep,vdsoas)
>  
>  # Actual build commands
> -quiet_cmd_vdsold_and_vdso_check = LD      $@
> +quiet_cmd_vdsold_and_vdso_check = VDSOLIB $@
>        cmd_vdsold_and_vdso_check = $(cmd_vdsold); $(cmd_vdso_check)
>  
> -quiet_cmd_vdsold = VDSOL   $@
> +quiet_cmd_vdsold = VDSOLD  $@

I think we should be more consistent about whether or not we prefix things
with VDSO, so either go with "VDSOLD, VDSOCC and VDSOAS" or stick to "LD,
CC and AS" rather than mixing between them.

I think my suggestion would be something along the lines of CC, LD, AS for
the native vdso and CC32, LD32, AS32 for the compat vdso.

Will