Re: linux-next: Tree for July 26 (uml)

Re: linux-next: Tree for July 26 (uml)

[Randy Dunlap]

On 07/25/2012 10:04 PM, Stephen Rothwell wrote:

> Hi all,
> 
> Please do not add anything to linux-next included branches/series that is
> destined for v3.7 until after v3.6-rc1 is released.
> 
> Reminder: do not rebase your branches before asking Linus to pull them ...
> 
> Changes since 20120725:
> 



uml on x86_64 (defconfig) build fails with:

  CC      arch/x86/um/../kernel/module.o
arch/x86/um/../kernel/module.c:96:5: error: redefinition of 'apply_relocate_add'
include/linux/moduleloader.h:64:19: note: previous definition of 'apply_relocate_add' was here
make[2]: *** [arch/x86/um/../kernel/module.o] Error 1



-- 
~Randy

Re: linux-next: Tree for July 26 (uml)

[Randy Dunlap]

On 07/26/2012 08:18 AM, Randy Dunlap wrote:

> On 07/25/2012 10:04 PM, Stephen Rothwell wrote:
> 
>> Hi all,
>>
>> Please do not add anything to linux-next included branches/series that is
>> destined for v3.7 until after v3.6-rc1 is released.
>>
>> Reminder: do not rebase your branches before asking Linus to pull them ...
>>
>> Changes since 20120725:
>>
> 
> 
> 
> uml on x86_64 (defconfig) build fails with:
> 
>   CC      arch/x86/um/../kernel/module.o
> arch/x86/um/../kernel/module.c:96:5: error: redefinition of 'apply_relocate_add'
> include/linux/moduleloader.h:64:19: note: previous definition of 'apply_relocate_add' was here
> make[2]: *** [arch/x86/um/../kernel/module.o] Error 1
> 
> 
> 



Adding Rusty.


This build error is still happening for uml on x86_64
in linux-next 20120813.


-- 
~Randy

Re: linux-next: Tree for July 26 (uml)

[Rusty Russell]

On Mon, 13 Aug 2012 10:00:16 -0700, Randy Dunlap <rdunlap@xenotime.net> wrote:
> On 07/26/2012 08:18 AM, Randy Dunlap wrote:
> 
> > On 07/25/2012 10:04 PM, Stephen Rothwell wrote:
> > 
> >> Hi all,
> >>
> >> Please do not add anything to linux-next included branches/series that is
> >> destined for v3.7 until after v3.6-rc1 is released.
> >>
> >> Reminder: do not rebase your branches before asking Linus to pull them ...
> >>
> >> Changes since 20120725:
> >>
> > 
> > 
> > 
> > uml on x86_64 (defconfig) build fails with:
> > 
> >   CC      arch/x86/um/../kernel/module.o
> > arch/x86/um/../kernel/module.c:96:5: error: redefinition of 'apply_relocate_add'
> > include/linux/moduleloader.h:64:19: note: previous definition of 'apply_relocate_add' was here
> > make[2]: *** [arch/x86/um/../kernel/module.o] Error 1
> > 
> > 
> > 
> 
> 
> 
> Adding Rusty.
> 
> 
> This build error is still happening for uml on x86_64
> in linux-next 20120813.

No huge surprise, I'll punt this to David Howells :)

Cheers,
Rusty.

Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

Rusty Russell <rusty@rustcorp.com.au> wrote:

> > >   CC      arch/x86/um/../kernel/module.o
> > > arch/x86/um/../kernel/module.c:96:5: error: redefinition of 'apply_relocate_add'
> > > include/linux/moduleloader.h:64:19: note: previous definition of 'apply_relocate_add' was here
> > > make[2]: *** [arch/x86/um/../kernel/module.o] Error 1

Hmmm...  I'm not sure how to deal with this.  The problem is that UML doesn't
draw the:

	select MODULES_USE_ELF_REL if X86_32
	select MODULES_USE_ELF_RELA if X86_64

definitions from arch/foo/Kconfig that tell it what modules will look like.

Should I just enable both REL and RELA in UML, or is there a better way to do
this?

David

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Richard Weinberger]

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Am 14.08.2012 16:26, schrieb David Howells:
> Rusty Russell <rusty@rustcorp.com.au> wrote:
> 
>>>>   CC      arch/x86/um/../kernel/module.o
>>>> arch/x86/um/../kernel/module.c:96:5: error: redefinition of 'apply_relocate_add'
>>>> include/linux/moduleloader.h:64:19: note: previous definition of 'apply_relocate_add' was here
>>>> make[2]: *** [arch/x86/um/../kernel/module.o] Error 1
> 
> Hmmm...  I'm not sure how to deal with this.  The problem is that UML doesn't
> draw the:
> 
> 	select MODULES_USE_ELF_REL if X86_32
> 	select MODULES_USE_ELF_RELA if X86_64
> 
> definitions from arch/foo/Kconfig that tell it what modules will look like.
> 
> Should I just enable both REL and RELA in UML, or is there a better way to do
> this?

Is there no way to get this information from the UML subarch?
Which is currently X86_32 or X86_64.

Thanks,
//richard


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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

Richard Weinberger <richard@nod.at> wrote:

> Is there no way to get this information from the UML subarch?
> Which is currently X86_32 or X86_64.

Or ppc or ia64?  Or are those defunct?

I can certainly try pasting the lines from x86/Kconfig to uml/Kconfig.common
to switch the REL/RELA bits, but it would be nice to get this from the actual
arch if possible to reduce redundancy.

David

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

David Howells <dhowells@redhat.com> wrote:

> I can certainly try pasting the lines from x86/Kconfig to uml/Kconfig.common
> to switch the REL/RELA bits, but it would be nice to get this from the actual
> arch if possible to reduce redundancy.

The attached patch works.

David
---
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index cb837c2..0463e48 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -11,6 +11,8 @@ config UML
 	select GENERIC_CPU_DEVICES
 	select GENERIC_IO
 	select GENERIC_CLOCKEVENTS
+	select MODULES_USE_ELF_REL if X86_32
+	select MODULES_USE_ELF_RELA if X86_64
 
 config MMU
 	bool

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Richard Weinberger]

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Am 14.08.2012 16:51, schrieb David Howells:
> Richard Weinberger <richard@nod.at> wrote:
> 
>> Is there no way to get this information from the UML subarch?
>> Which is currently X86_32 or X86_64.
> 
> Or ppc or ia64?  Or are those defunct?

Those are defunct.
AFAIK viro is working on UML/ppc64.

> I can certainly try pasting the lines from x86/Kconfig to uml/Kconfig.common
> to switch the REL/RELA bits, but it would be nice to get this from the actual
> arch if possible to reduce redundancy.

The issue happens only on -next, right?
I can have a closer look at the issue tomorrow.

Thanks,
//richard


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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Richard Weinberger]

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Am 14.08.2012 16:54, schrieb David Howells:
> David Howells <dhowells@redhat.com> wrote:
> 
>> I can certainly try pasting the lines from x86/Kconfig to uml/Kconfig.common
>> to switch the REL/RELA bits, but it would be nice to get this from the actual
>> arch if possible to reduce redundancy.
> 
> The attached patch works.
> 
> David
> ---
> diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
> index cb837c2..0463e48 100644
> --- a/arch/um/Kconfig.common
> +++ b/arch/um/Kconfig.common
> @@ -11,6 +11,8 @@ config UML
>  	select GENERIC_CPU_DEVICES
>  	select GENERIC_IO
>  	select GENERIC_CLOCKEVENTS
> +	select MODULES_USE_ELF_REL if X86_32
> +	select MODULES_USE_ELF_RELA if X86_64

I think arch/x86/um/Kconfig makes more sense.

Thanks,
//richard


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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

Richard Weinberger <richard@nod.at> wrote:

> I think arch/x86/um/Kconfig makes more sense.

warthog>ls arch/um
defconfig     Kconfig.common  Kconfig.um     Makefile-os-Linux  scripts/
drivers/      Kconfig.debug   kernel/        Makefile-ppc       sys-ia64/
include/      Kconfig.net     Makefile       Makefile-skas      sys-ppc/
Kconfig.char  Kconfig.rest    Makefile-ia64  os-Linux/

It doesn't exist.  Should I create it?

David

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Richard Weinberger]

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Am 14.08.2012 17:06, schrieb David Howells:
> Richard Weinberger <richard@nod.at> wrote:
> 
>> I think arch/x86/um/Kconfig makes more sense.
> 
> warthog>ls arch/um
> defconfig     Kconfig.common  Kconfig.um     Makefile-os-Linux  scripts/
> drivers/      Kconfig.debug   kernel/        Makefile-ppc       sys-ia64/
> include/      Kconfig.net     Makefile       Makefile-skas      sys-ppc/
> Kconfig.char  Kconfig.rest    Makefile-ia64  os-Linux/
> 
> It doesn't exist.  Should I create it?

arch/x86/um, not arch/um.

arch/um/ contains the generic UML stuff.
arch/x86/um/ the x86 specific UML stuff.

Thanks,
//richard



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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

David Howells <dhowells@redhat.com> wrote:

> > I think arch/x86/um/Kconfig makes more sense.
> ...
> It doesn't exist.  Should I create it?

Bah.  Helps if I read your message more closely.

David

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[David Howells]

How about this then?

David
---
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 9926e11..a4b0c10 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -21,9 +21,11 @@ config 64BIT
 config X86_32
 	def_bool !64BIT
 	select HAVE_AOUT
+	select MODULES_USE_ELF_REL
 
 config X86_64
 	def_bool 64BIT
+	select MODULES_USE_ELF_RELA
 
 config RWSEM_XCHGADD_ALGORITHM
 	def_bool X86_XADD && 64BIT

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Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Richard Weinberger]

[-- Attachment #1.1: Type: text/plain, Size: 602 bytes --]

Am 14.08.2012 17:15, schrieb David Howells:
> How about this then?
> 
> David
> ---
> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
> index 9926e11..a4b0c10 100644
> --- a/arch/x86/um/Kconfig
> +++ b/arch/x86/um/Kconfig
> @@ -21,9 +21,11 @@ config 64BIT
>  config X86_32
>  	def_bool !64BIT
>  	select HAVE_AOUT
> +	select MODULES_USE_ELF_REL
>  
>  config X86_64
>  	def_bool 64BIT
> +	select MODULES_USE_ELF_RELA
>  
>  config RWSEM_XCHGADD_ALGORITHM
>  	def_bool X86_XADD && 64BIT

Looks sane.

Acked-by: Richard Weinberger <richard@nod.at>

Thanks,
//richard


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Re: linux-next: Tree for July 26 (uml)

[Randy Dunlap]

On 08/14/2012 08:17 AM, Richard Weinberger wrote:

> Am 14.08.2012 17:15, schrieb David Howells:
>> How about this then?
>>
>> David
>> ---
>> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
>> index 9926e11..a4b0c10 100644
>> --- a/arch/x86/um/Kconfig
>> +++ b/arch/x86/um/Kconfig
>> @@ -21,9 +21,11 @@ config 64BIT
>>  config X86_32
>>  	def_bool !64BIT
>>  	select HAVE_AOUT
>> +	select MODULES_USE_ELF_REL
>>  
>>  config X86_64
>>  	def_bool 64BIT
>> +	select MODULES_USE_ELF_RELA
>>  
>>  config RWSEM_XCHGADD_ALGORITHM
>>  	def_bool X86_XADD && 64BIT
> 
> Looks sane.
> 
> Acked-by: Richard Weinberger <richard@nod.at>


Acked-by: Randy Dunlap <rdunlap@xenotime.net>

Thanks.

-- 
~Randy

Re: [uml-devel] linux-next: Tree for July 26 (uml)

[Rusty Russell]

On Tue, 14 Aug 2012 10:41:42 -0700, Randy Dunlap <rdunlap@xenotime.net> wrote:
> On 08/14/2012 08:17 AM, Richard Weinberger wrote:
> 
> > Am 14.08.2012 17:15, schrieb David Howells:
> >> How about this then?
> >>
> >> David
> >> ---
> >> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
> >> index 9926e11..a4b0c10 100644
> >> --- a/arch/x86/um/Kconfig
> >> +++ b/arch/x86/um/Kconfig
> >> @@ -21,9 +21,11 @@ config 64BIT
> >>  config X86_32
> >>  	def_bool !64BIT
> >>  	select HAVE_AOUT
> >> +	select MODULES_USE_ELF_REL
> >>  
> >>  config X86_64
> >>  	def_bool 64BIT
> >> +	select MODULES_USE_ELF_RELA
> >>  
> >>  config RWSEM_XCHGADD_ALGORITHM
> >>  	def_bool X86_XADD && 64BIT
> > 
> > Looks sane.
> > 
> > Acked-by: Richard Weinberger <richard@nod.at>
> 
> 
> Acked-by: Randy Dunlap <rdunlap@xenotime.net>

Thanks, folded into David's original patch.

Cheers,
Rusty.

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Re: linux-next: Tree for July 26 (uml)

[Randy Dunlap]

On 08/19/2012 07:51 PM, Rusty Russell wrote:

> On Tue, 14 Aug 2012 10:41:42 -0700, Randy Dunlap <rdunlap@xenotime.net> wrote:
>> On 08/14/2012 08:17 AM, Richard Weinberger wrote:
>>
>>> Am 14.08.2012 17:15, schrieb David Howells:
>>>> How about this then?
>>>>
>>>> David
>>>> ---
>>>> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
>>>> index 9926e11..a4b0c10 100644
>>>> --- a/arch/x86/um/Kconfig
>>>> +++ b/arch/x86/um/Kconfig
>>>> @@ -21,9 +21,11 @@ config 64BIT
>>>>  config X86_32
>>>>  	def_bool !64BIT
>>>>  	select HAVE_AOUT
>>>> +	select MODULES_USE_ELF_REL
>>>>  
>>>>  config X86_64
>>>>  	def_bool 64BIT
>>>> +	select MODULES_USE_ELF_RELA
>>>>  
>>>>  config RWSEM_XCHGADD_ALGORITHM
>>>>  	def_bool X86_XADD && 64BIT
>>>
>>> Looks sane.
>>>
>>> Acked-by: Richard Weinberger <richard@nod.at>
>>
>>
>> Acked-by: Randy Dunlap <rdunlap@xenotime.net>
> 
> Thanks, folded into David's original patch.


When will this be fixed in linux-next?

linux-next of 20120821 still fails.

thanks,
-- 
~Randy

Re: linux-next: Tree for July 26 (uml)

[Rusty Russell]

On Tue, 21 Aug 2012 10:43:59 -0700, Randy Dunlap <rdunlap@xenotime.net> wrote:
> On 08/19/2012 07:51 PM, Rusty Russell wrote:
> 
> > On Tue, 14 Aug 2012 10:41:42 -0700, Randy Dunlap <rdunlap@xenotime.net> wrote:
> >> On 08/14/2012 08:17 AM, Richard Weinberger wrote:
> >>
> >>> Am 14.08.2012 17:15, schrieb David Howells:
> >>>> How about this then?
> >>>>
> >>>> David
> >>>> ---
> >>>> diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
> >>>> index 9926e11..a4b0c10 100644
> >>>> --- a/arch/x86/um/Kconfig
> >>>> +++ b/arch/x86/um/Kconfig
> >>>> @@ -21,9 +21,11 @@ config 64BIT
> >>>>  config X86_32
> >>>>  	def_bool !64BIT
> >>>>  	select HAVE_AOUT
> >>>> +	select MODULES_USE_ELF_REL
> >>>>  
> >>>>  config X86_64
> >>>>  	def_bool 64BIT
> >>>> +	select MODULES_USE_ELF_RELA
> >>>>  
> >>>>  config RWSEM_XCHGADD_ALGORITHM
> >>>>  	def_bool X86_XADD && 64BIT
> >>>
> >>> Looks sane.
> >>>
> >>> Acked-by: Richard Weinberger <richard@nod.at>
> >>
> >>
> >> Acked-by: Randy Dunlap <rdunlap@xenotime.net>
> > 
> > Thanks, folded into David's original patch.
> 
> 
> When will this be fixed in linux-next?
> 
> linux-next of 20120821 still fails.

Should be in latest, ie. 20120822.

Cheers,
Rusty.