"make config" to another architecture doesn't relink include/asm

"make config" to another architecture doesn't relink include/asm

[Robert P. J. Day]

  should i expect this with a fresh tree on x86_64?

$ make distclean
$ make defconfig
$ make modules_prepare
$ ls -l include/asm
lrwxrwxrwx    1 rpjday rpjday     7 2009-05-22 12:24 asm -> asm-x86
$

  oh, wait, i changed my mind, i want to switch architectures so start
over:

$ make clean
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- omap3_beagle_defconfig
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage
scripts/kconfig/conf -s arch/arm/Kconfig
include/config/auto.conf:15:warning: symbol value 'arch/x86/configs/x86_64_defconfig' invalid for ARCH_DEFCONFIG
  CHK     include/linux/version.h
make[1]: `include/asm-arm/mach-types.h' is up to date.
  CHK     include/linux/utsrelease.h
  UPD     include/linux/utsrelease.h
ERROR: the symlink include/asm points to asm-x86 but asm-arm was expected
       set ARCH or save .config and run 'make mrproper' to fix it
make: *** [include/asm] Error 1

$ ls -l include/asm
lrwxrwxrwx 1 rpjday rpjday 7 2009-05-22 12:24 include/asm -> asm-x86
$

  shouldn't it be sufficient that, if i do another "make ??_defconfig"
to another architecture, all traces of the previous configure are
erased and include/asm should be relinked automatically?

rday
--


========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
========================================================================

Re: "make config" to another architecture doesn't relink include/asm

[Bill Davidsen]

Robert P. J. Day wrote:
>   should i expect this with a fresh tree on x86_64?
> 
> $ make distclean
> $ make defconfig
> $ make modules_prepare
> $ ls -l include/asm
> lrwxrwxrwx    1 rpjday rpjday     7 2009-05-22 12:24 asm -> asm-x86
> $
> 
>   oh, wait, i changed my mind, i want to switch architectures so start
> over:
> 
> $ make clean
> $ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- omap3_beagle_defconfig
> $ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage
> scripts/kconfig/conf -s arch/arm/Kconfig
> include/config/auto.conf:15:warning: symbol value 'arch/x86/configs/x86_64_defconfig' invalid for ARCH_DEFCONFIG
>   CHK     include/linux/version.h
> make[1]: `include/asm-arm/mach-types.h' is up to date.
>   CHK     include/linux/utsrelease.h
>   UPD     include/linux/utsrelease.h
> ERROR: the symlink include/asm points to asm-x86 but asm-arm was expected
>        set ARCH or save .config and run 'make mrproper' to fix it
> make: *** [include/asm] Error 1
> 
> $ ls -l include/asm
> lrwxrwxrwx 1 rpjday rpjday 7 2009-05-22 12:24 include/asm -> asm-x86
> $
> 
>   shouldn't it be sufficient that, if i do another "make ??_defconfig"
> to another architecture, all traces of the previous configure are
> erased and include/asm should be relinked automatically?
> 
Does "make distclean" (or maybe "make mrproper") get you to really clean status?

-- 
Bill Davidsen <davidsen@tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot

Re: "make config" to another architecture doesn't relink include/asm

[Robert P. J. Day]

On Fri, 22 May 2009, Bill Davidsen wrote:

> Robert P. J. Day wrote:
> >   should i expect this with a fresh tree on x86_64?
> >
> > $ make distclean
> > $ make defconfig
> > $ make modules_prepare
> > $ ls -l include/asm
> > lrwxrwxrwx    1 rpjday rpjday     7 2009-05-22 12:24 asm -> asm-x86
> > $
> >
> >   oh, wait, i changed my mind, i want to switch architectures so start
> > over:
> >
> > $ make clean
> > $ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- omap3_beagle_defconfig
> > $ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- uImage
> > scripts/kconfig/conf -s arch/arm/Kconfig
> > include/config/auto.conf:15:warning: symbol value
> > 'arch/x86/configs/x86_64_defconfig' invalid for ARCH_DEFCONFIG
> >   CHK     include/linux/version.h
> > make[1]: `include/asm-arm/mach-types.h' is up to date.
> >   CHK     include/linux/utsrelease.h
> >   UPD     include/linux/utsrelease.h
> > ERROR: the symlink include/asm points to asm-x86 but asm-arm was expected
> >        set ARCH or save .config and run 'make mrproper' to fix it
> > make: *** [include/asm] Error 1
> >
> > $ ls -l include/asm
> > lrwxrwxrwx 1 rpjday rpjday 7 2009-05-22 12:24 include/asm -> asm-x86
> > $
> >
> >   shouldn't it be sufficient that, if i do another "make ??_defconfig"
> > to another architecture, all traces of the previous configure are
> > erased and include/asm should be relinked automatically?
> >
> Does "make distclean" (or maybe "make mrproper") get you to really clean
> status?

  yes, but the issue is that "make clean" should still have the same
effect WRT to resetting that symlink, especially since the error
message tells the user to set ARCH and the user (i.e., me) *has* set
ARCH.  put another way, if i do a config with a specific setting for
ARCH, it seems non-intuitive to *not* reset the symlink representing
that architecture.

rday
--

========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
========================================================================

Re: "make config" to another architecture doesn't relink include/asm

[Arnd Bergmann]

On Friday 22 May 2009, Robert P. J. Day wrote:
>   shouldn't it be sufficient that, if i do another "make ??_defconfig"
> to another architecture, all traces of the previous configure are
> erased and include/asm should be relinked automatically?

In 2.6.30, the symlink is finally no longer needed, so maybe we
should simply drop it to solve this problem as well.

	Arnd <><

Re: "make config" to another architecture doesn't relink include/asm

[Michael S. Zick]

On Sat May 23 2009, Arnd Bergmann wrote:
> On Friday 22 May 2009, Robert P. J. Day wrote:
> >   shouldn't it be sufficient that, if i do another "make ??_defconfig"
> > to another architecture, all traces of the previous configure are
> > erased and include/asm should be relinked automatically?
> 
> In 2.6.30, the symlink is finally no longer needed, so maybe we
> should simply drop it to solve this problem as well.
>

With the note to set ARCH='<whatever>' either in the environment
or on the command line beforehand.
Sort of a "belt and suspenders" suggestion.

Mike 
> 	Arnd <><
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> 

Re: "make config" to another architecture doesn't relink include/asm

[Robert P. J. Day]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 997 bytes --]

On Sat, 23 May 2009, Arnd Bergmann wrote:

> On Friday 22 May 2009, Robert P. J. Day wrote:
> >   shouldn't it be sufficient that, if i do another "make
> > ??_defconfig" to another architecture, all traces of the previous
> > configure are erased and include/asm should be relinked
> > automatically?

> In 2.6.30, the symlink is finally no longer needed, so maybe we
> should simply drop it to solve this problem as well.

  or that could work, too.  :-)

rday
--


========================================================================
Robert P. J. Day                               Waterloo, Ontario, CANADA

        Linux Consulting, Training and Annoying Kernel Pedantry.

Web page:                                          http://crashcourse.ca
Linked In:                             http://www.linkedin.com/in/rpjday
Twitter:                                       http://twitter.com/rpjday
========================================================================