Re: [PATCH 4/5] kbuild: unify vdso_install rules

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On Wed, Oct 11, 2023 at 8:53 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> On Wed, Oct 11, 2023 at 11:24 AM Guo Ren <guoren@xxxxxxxxxx> wrote:
> >
> > On Mon, Oct 9, 2023 at 8:42 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> > > --- a/arch/riscv/Makefile
> > > +++ b/arch/riscv/Makefile
> > > @@ -131,12 +131,6 @@ endif
> > >  libs-y += arch/riscv/lib/
> > >  libs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
> > >
> > > -PHONY += vdso_install
> > > -vdso_install:
> > > -       $(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso $@
> > > -       $(if $(CONFIG_COMPAT),$(Q)$(MAKE) \
> > > -               $(build)=arch/riscv/kernel/compat_vdso compat_$@)
> > > -
> > >  ifeq ($(KBUILD_EXTMOD),)
> > >  ifeq ($(CONFIG_MMU),y)
> > >  prepare: vdso_prepare
> > > @@ -148,6 +142,9 @@ vdso_prepare: prepare0
> > >  endif
> > >  endif
> > >
> > > +vdso-install-y                 += arch/riscv/kernel/vdso/vdso.so.dbg
> > > +vdso-install-$(CONFIG_COMPAT)  += arch/riscv/kernel/compat_vdso/compat_vdso.so.dbg:../compat_vdso/compat_vdso.so
> > Why do we need ":../compat_vdso/compat_vdso.so" here?
>
>
>
>
> All architectures except riscv install vdso files
> to /lib/modules/$(uname -r)/vdso/.
>
>
>
> See the following code in arch/riscv/kernel/compat_vdso/Makefile:
>
>
> quiet_cmd_compat_vdso_install = INSTALL $@
>       cmd_compat_vdso_install = cp $(obj)/$@.dbg $(MODLIB)/compat_vdso/$@
>
>
>
>
> Riscv copies the compat vdso to
> /lib/modules/$(uname -r)/compat_vdso/.
>
>
>
> This commit preserves the current installation path as-is.
>
> If the riscv maintainers agree, we can change the
> installation destination to /lib/modules/$(uname -r)/vdso/
> for consistency.
Yes, but it should be another patch. Thx for the clarification.

Reviewed-by: Guo Ren <guoren@xxxxxxxxxx>

>
>
>
> --
> Best Regards
> Masahiro Yamada



-- 
Best Regards
 Guo Ren




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