linux-kernel - Re: [PATCH v3] x86,vdso: Fix vdso

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Date:	Thu, 12 Jun 2014 13:01:54 -0400
From:	Josh Boyer <jwboyer@...oraproject.org>
To:	Andy Lutomirski <luto@...capital.net>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Michal Marek <mmarek@...e.cz>,
	"linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	Sam Ravnborg <sam@...nborg.org>
Subject: Re: [PATCH v3] x86,vdso: Fix vdso_install

On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski <luto@...capital.net> wrote:
> The filenames are different now.  Inspired by a patch from
> Sam Ravnborg.
>
> Acked-by: Sam Ravnborg <sam@...nborg.org>
> Reported-by: Josh Boyer <jwboyer@...oraproject.org>
> Signed-off-by: Andy Lutomirski <luto@...capital.net>

Things look great with this version.  Thanks much!

Tested-by: Josh Boyer <jwboyer@...oraproject.org>

> ---
>
> I kept Sam's ack from v2, since v3 has only a trivial change.
>
> Changes from v1: Remove core kbuild change
> Changes from v2: Name the result .so files again, not .so.dbg
>
>  arch/x86/vdso/Makefile | 22 +++++++++++-----------
>  1 file changed, 11 insertions(+), 11 deletions(-)
>
> diff --git a/arch/x86/vdso/Makefile b/arch/x86/vdso/Makefile
> index 9769df0..845b45e 100644
> --- a/arch/x86/vdso/Makefile
> +++ b/arch/x86/vdso/Makefile
> @@ -9,11 +9,6 @@ VDSOX32-$(CONFIG_X86_X32_ABI)  := y
>  VDSO32-$(CONFIG_X86_32)                := y
>  VDSO32-$(CONFIG_COMPAT)                := y
>
> -vdso-install-$(VDSO64-y)       += vdso.so
> -vdso-install-$(VDSOX32-y)      += vdsox32.so
> -vdso-install-$(VDSO32-y)       += $(vdso32-images)
> -
> -
>  # files to link into the vdso
>  vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
>
> @@ -176,15 +171,20 @@ VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
>  GCOV_PROFILE := n
>
>  #
> -# Install the unstripped copy of vdso*.so listed in $(vdso-install-y).
> +# Install the unstripped copies of vdso*.so.
>  #
> -quiet_cmd_vdso_install = INSTALL $@
> -      cmd_vdso_install = cp $(obj)/$@...g $(MODLIB)/vdso/$@
> -$(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE
> +quiet_cmd_vdso_install = INSTALL $(@:install_%=%)
> +      cmd_vdso_install = cp $< $(MODLIB)/vdso/$(@:install_%=%)
> +
> +vdso_img_insttargets := $(vdso_img_sodbg:%.dbg=install_%)
> +
> +$(MODLIB)/vdso: FORCE
>         @mkdir -p $(MODLIB)/vdso
> +
> +$(vdso_img_insttargets): install_%: $(obj)/%.dbg $(MODLIB)/vdso FORCE
>         $(call cmd,vdso_install)
>
> -PHONY += vdso_install $(vdso-install-y)
> -vdso_install: $(vdso-install-y)
> +PHONY += vdso_install $(vdso_img_insttargets)
> +vdso_install: $(vdso_img_insttargets) FORCE
>
>  clean-files := vdso32-syscall* vdso32-sysenter* vdso32-int80*
> --
> 1.9.3
>
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