Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-13 Thread Andy Lutomirski
On Fri, Jun 13, 2014 at 10:24 AM, H. Peter Anvin  wrote:
> On 06/12/2014 10:01 AM, Josh Boyer wrote:
>> On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski  
>> wrote:
>>> The filenames are different now.  Inspired by a patch from
>>> Sam Ravnborg.
>>>
>>> Acked-by: Sam Ravnborg 
>>> Reported-by: Josh Boyer 
>>> Signed-off-by: Andy Lutomirski 
>>
>> Things look great with this version.  Thanks much!
>>
>> Tested-by: Josh Boyer 
>>
>
> Are we okay with the 64-bit vdso now being installed as vdso64.so?

Unless someone actually complains, I think so.  Ideally, I think we'd
have a symlink from the build id, but that's a separate issue.

AFAIK, the only thing that actually references these files is Fedora's
gdb, which is finding them from Fedora's build-id symlinks, which
should work fine regardless of what the thing is called.

How's this for a patch description:

make vdso_install has been broken since this commit:

commit 6f121e548f83674ab4920a4e60afb58d4f61b829
Author: Andy Lutomirski 
Date:   Mon May 5 12:19:34 2014 -0700

x86, vdso: Reimplement vdso.so preparation in build-time C

because the names of the files to be installed changed.   This fixes
vdso_install to install the right files.
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Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-13 Thread H. Peter Anvin
On 06/12/2014 10:01 AM, Josh Boyer wrote:
> On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski  wrote:
>> The filenames are different now.  Inspired by a patch from
>> Sam Ravnborg.
>>
>> Acked-by: Sam Ravnborg 
>> Reported-by: Josh Boyer 
>> Signed-off-by: Andy Lutomirski 
> 
> Things look great with this version.  Thanks much!
> 
> Tested-by: Josh Boyer 
> 

Are we okay with the 64-bit vdso now being installed as vdso64.so?

-hpa


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Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-13 Thread H. Peter Anvin
On 06/12/2014 10:01 AM, Josh Boyer wrote:
 On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski l...@amacapital.net wrote:
 The filenames are different now.  Inspired by a patch from
 Sam Ravnborg.

 Acked-by: Sam Ravnborg s...@ravnborg.org
 Reported-by: Josh Boyer jwbo...@fedoraproject.org
 Signed-off-by: Andy Lutomirski l...@amacapital.net
 
 Things look great with this version.  Thanks much!
 
 Tested-by: Josh Boyer jwbo...@fedoraproject.org
 

Are we okay with the 64-bit vdso now being installed as vdso64.so?

-hpa


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Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-13 Thread Andy Lutomirski
On Fri, Jun 13, 2014 at 10:24 AM, H. Peter Anvin h...@zytor.com wrote:
 On 06/12/2014 10:01 AM, Josh Boyer wrote:
 On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski l...@amacapital.net 
 wrote:
 The filenames are different now.  Inspired by a patch from
 Sam Ravnborg.

 Acked-by: Sam Ravnborg s...@ravnborg.org
 Reported-by: Josh Boyer jwbo...@fedoraproject.org
 Signed-off-by: Andy Lutomirski l...@amacapital.net

 Things look great with this version.  Thanks much!

 Tested-by: Josh Boyer jwbo...@fedoraproject.org


 Are we okay with the 64-bit vdso now being installed as vdso64.so?

Unless someone actually complains, I think so.  Ideally, I think we'd
have a symlink from the build id, but that's a separate issue.

AFAIK, the only thing that actually references these files is Fedora's
gdb, which is finding them from Fedora's build-id symlinks, which
should work fine regardless of what the thing is called.

How's this for a patch description:

make vdso_install has been broken since this commit:

commit 6f121e548f83674ab4920a4e60afb58d4f61b829
Author: Andy Lutomirski l...@amacapital.net
Date:   Mon May 5 12:19:34 2014 -0700

x86, vdso: Reimplement vdso.so preparation in build-time C

because the names of the files to be installed changed.   This fixes
vdso_install to install the right files.
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Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-12 Thread Josh Boyer
On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski  wrote:
> The filenames are different now.  Inspired by a patch from
> Sam Ravnborg.
>
> Acked-by: Sam Ravnborg 
> Reported-by: Josh Boyer 
> Signed-off-by: Andy Lutomirski 

Things look great with this version.  Thanks much!

Tested-by: Josh Boyer 

> ---
>
> 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 $(obj)/$@.dbg $(MODLIB)/vdso/$@
> -$(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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Re: [PATCH v3] x86,vdso: Fix vdso_install

2014-06-12 Thread Josh Boyer
On Thu, Jun 12, 2014 at 11:28 AM, Andy Lutomirski l...@amacapital.net wrote:
 The filenames are different now.  Inspired by a patch from
 Sam Ravnborg.

 Acked-by: Sam Ravnborg s...@ravnborg.org
 Reported-by: Josh Boyer jwbo...@fedoraproject.org
 Signed-off-by: Andy Lutomirski l...@amacapital.net

Things look great with this version.  Thanks much!

Tested-by: Josh Boyer jwbo...@fedoraproject.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 $(obj)/$@.dbg $(MODLIB)/vdso/$@
 -$(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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