linux-kernel - Re: [PATCH v2] riscv: compat: vdso: Fix vdso

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Date:   Wed, 20 Jul 2022 00:39:30 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Emil Renner Berthing <emil.renner.berthing@...onical.com>,
        Palmer Dabbelt <palmer@...belt.com>
Cc:     Ben Hutchings <ben@...adent.org.uk>,
        Conor Dooley <conor.dooley@...rochip.com>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] riscv: compat: vdso: Fix vdso_install target

Reviewed-by: Guo Ren <guoren@...nel.org>

@Palmer Dabbelt
Please have a look at the patch which fixes up the "make vdso_install"
problem. I recommend it could be fixed in 5.19.

On Tue, Jul 19, 2022 at 9:24 PM Emil Renner Berthing
<emil.renner.berthing@...onical.com> wrote:
>
> When CONFIG_COMPAT=y the vdso_install target fails:
>
> $ make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- vdso_install
>   INSTALL vdso.so
> make[1]: *** No rule to make target 'vdso_install'.  Stop.
> make: *** [arch/riscv/Makefile:112: vdso_install] Error 2
>
> The problem is that arch/riscv/kernel/compat_vdso/Makefile doesn't
> have a vdso_install target, but instead calls it compat_vdso_install.
>
> Fixes: 0715372a06ce ("riscv: compat: vdso: Add COMPAT_VDSO base code implementation")
> Reported-by: Ben Hutchings <ben@...adent.org.uk>
> Signed-off-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
> ---
> v2: Add Fixes and Reported-by tags
>
>  arch/riscv/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
> index 34cf8a598617..5cfbef613e34 100644
> --- a/arch/riscv/Makefile
> +++ b/arch/riscv/Makefile
> @@ -110,7 +110,7 @@ PHONY += vdso_install
>  vdso_install:
>         $(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso $@
>         $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \
> -               $(build)=arch/riscv/kernel/compat_vdso $@)
> +               $(build)=arch/riscv/kernel/compat_vdso compat_$@)
>
>  ifeq ($(KBUILD_EXTMOD),)
>  ifeq ($(CONFIG_MMU),y)
> --
> 2.37.1
>


-- 
Best Regards
 Guo Ren