[Buildroot] [Bug 573] New: BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[Buildroot] [Bug 573] New: BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573

           Summary: BR2_DEFAULT_KERNEL_HEADERS is undefined with external
                    toolchain
           Product: buildroot
           Version: unspecified
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P5
         Component: Other
        AssignedTo: unassigned at buildroot.uclibc.org
        ReportedBy: n0-1 at nwl.cc
                CC: buildroot at uclibc.org
   Estimated Hours: 0.0


Hi,

I'm trying to compile using an external binary toolchain (installed via
crossdev in Gentoo), but when BR2_TOOLCHAIN_EXTERNAL is active,
toolchain/kernel-headers/Config.in is not being included. The later leads to an
undefined BR2_DEFAULT_KERNEL_HEADERS, which again makes buildroot try to
download http://www.kernel.org/pub//linux/kernel/v2.6/linux-..tar.bz2.

Greetings, Phil


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #1 from Phil <n0-1@nwl.cc>  2009-08-19 13:46:26 UTC ---
This happens with the git tree from git://repo.or.cz/buildroot.git, btw.


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #2 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com>  2009-08-19 21:24:14 UTC ---
At what step does it fail ? Could you post your build log and Buildroot
configuration file ?


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #3 from Thomas Petazzoni <thomas.petazzoni@free-electrons.com>  2009-08-19 21:32:09 UTC ---
BTW, this bugzilla is for the official Buildroot version, that you can find at
http://www.buildroot.org, or in its Git repo at http://git.buildroot.org.

But anyway, I think that the issue you're having might be present in the
official Buildroot version as well.


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #4 from Phil <n0-1@nwl.cc>  2009-08-20 09:22:20 UTC ---
Created an attachment (id=607)
 --> (https://bugs.busybox.net/attachment.cgi?id=607)
Log of the make-output when compiling


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #5 from Phil <n0-1@nwl.cc>  2009-08-20 09:23:53 UTC ---
Created an attachment (id=609)
 --> (https://bugs.busybox.net/attachment.cgi?id=609)
The buildroot config triggering the described behaviour.


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573


Peter Korsgaard <jacmet@uclibc.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID




--- Comment #6 from Peter Korsgaard <jacmet@uclibc.org>  2009-08-26 20:58:14 UTC ---
This shouldn't happend with the official BR tree, as we don't display the
BR2_KERNEL_LINUX option when an external toolchain is used.

Is there any specific reason why you are using Bernhard's tree instead of the
official one?


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #7 from Phil <n0-1@nwl.cc>  2009-08-26 22:11:59 UTC ---
(In reply to comment #6)
> This shouldn't happend with the official BR tree, as we don't display the
> BR2_KERNEL_LINUX option when an external toolchain is used.

Indeed. The official tree simply skips kernel compilation or, when
BR2_KERNEL_LINUX_ADVANCED
has been specified, allows specification of the desired linux version, too.

> Is there any specific reason why you are using Bernhard's tree instead of the
> official one?

I was searching for glibc-based toolchain support, which sadly occurs to be not
complete in Bernhard's
tree, too. I didn't know of the external toolchain support option in busybox,
so I just tried that on
occasion.

Filing this report to the wrong site was just because of me having forgotten
that I didn't use the official
sources. So, thanks for your patience and sorry for the inconvenience.


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[Buildroot] [Bug 573] BR2_DEFAULT_KERNEL_HEADERS is undefined with external toolchain

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=573





--- Comment #8 from Bernhard Reutner-Fischer <aldot@uclibc.org>  2009-08-27 13:44:47 UTC ---
(In reply to comment #7)
> (In reply to comment #6)
> > This shouldn't happend with the official BR tree, as we don't display the
> > BR2_KERNEL_LINUX option when an external toolchain is used.
> 
> Indeed. The official tree simply skips kernel compilation or, when
> BR2_KERNEL_LINUX_ADVANCED
> has been specified, allows specification of the desired linux version, too.

My tree does not support external toolchains, just FYI.
> 
> > Is there any specific reason why you are using Bernhard's tree instead of the
> > official one?
> 
> I was searching for glibc-based toolchain support, which sadly occurs to be not
> complete in Bernhard's

I only added stub-functionality for the buildroot parts to show people how
i would implement it cleanly.

Let me note that if you want glibc and an external toolchain then i personally
would use gentoo or some such.


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