Link error: host instead of target libc

Link error: host instead of target libc

[Martin Dietze]

Hi,

 still trying to get nylon/mtx-1 built with the current OE code,
I am getting this error at install of glibc-2.3.3:

| /var/src/OE/tmp/cross/mipsel/lib/gcc-lib/mipsel-oe-linux/3.3.4/../../../../mipsel-oe-linux/bin/ld: skipping incompatible /lib/libc.so.6 when searching for /lib/libc.so.6
| /var/src/OE/tmp/cross/mipsel/lib/gcc-lib/mipsel-oe-linux/3.3.4/../../../../mipsel-oe-linux/bin/ld: cannot find /lib/libc.so.6
| collect2: ld returned 1 exit status
| make[2]: *** [/var/src/OE/tmp/work/mipsel-oe-linux/glibc-2.3.3-r16/build-mipsel-oe-linux/math/libm.so] Error 1

Having asked google I found that people had this kind of problem
before, but I could not extract any hint on how to solve this
there. My checkout of OE dates back to this commit:

| commit 8ff9eac82736ab3adc5ffd223a39d9eafd2409be
| Author: Dmitry 'MAD' Artamonow <mad_soft@inbox.ru>
| Date:   Tue Feb 24 21:38:10 2009 -0800

I followed Mickey's proposal and derived my conf/distro/nylon.conf
from minimal.conf adding my preferred versions etc.

Having had a longer break from nylon maintainership I seem to have
missed a lot of changes in OE; and I am quite clueless now where to
start searching for what causes the above error. Any hint?

Cheers,

Martin

-- 
----------- / http://herbert.the-little-red-haired-girl.org / -------------
=+= 
Man muss das Dreibein hin und wieder loben, dann geht es auch schonmal runter,
den Muell wegbringen.

Re: Link error: host instead of target libc

[Martin Dietze]

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On Fri, March 27, 2009, Martin Dietze wrote:

> Having asked google I found that people had this kind of problem
> before, but I could not extract any hint on how to solve this
> there. My checkout of OE dates back to this commit:
> 
> | commit 8ff9eac82736ab3adc5ffd223a39d9eafd2409be
> | Author: Dmitry 'MAD' Artamonow <mad_soft@inbox.ru>
> | Date:   Tue Feb 24 21:38:10 2009 -0800

Correction, that was the wrong one, my last checkout was this:

| commit b4b4c8664e53f15a436e17151c7c8cef33b766cd
| Author: woglinde <heinold@inf.fu-berlin.de>
| Date:   Tue Mar 24 12:08:58 2009 +0100

Sorry,

Martin

-- 
----------- / http://herbert.the-little-red-haired-girl.org / -------------
=+= 
Doch sie, die mich am meisten gequält, geärgert, betrübt,
Die hat mich nie gehasset, und hat mich nie geliebt.  --  H. Heine

Re: Link error: host instead of target libc

[Khem Raj]

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On Friday 27 March 2009 02:57:51 Martin Dietze wrote:
> Hi,
> 
>  still trying to get nylon/mtx-1 built with the current OE code,
> I am getting this error at install of glibc-2.3.3:
> 
> | /var/src/OE/tmp/cross/mipsel/lib/gcc-lib/mipsel-oe-linux/3.3.4/../../../../mipsel-oe-linux/bin/ld: skipping incompatible /lib/libc.so.6 when searching for /lib/libc.so.6
> | /var/src/OE/tmp/cross/mipsel/lib/gcc-lib/mipsel-oe-linux/3.3.4/../../../../mipsel-oe-linux/bin/ld: cannot find /lib/libc.so.6
> | collect2: ld returned 1 exit status
> | make[2]: *** [/var/src/OE/tmp/work/mipsel-oe-linux/glibc-2.3.3-r16/build-mipsel-oe-linux/math/libm.so] Error 1

One reason could be that you linker is not aware of sysroot properly. As a result it does not append correct sysroot path and ends up looking at /lib which ofcourse it your host libc (x86) and hence the error. you might need to backport sysroot related patches to binutils 2.14

We have been able to build mipsel with angstrom-2008 I would suggest that you use those versions of toolchain and kernel headers for nylon to start with. Its gcc 4.2.4 binutils 2.18.x.x.x eglibc-2.9 linux-libc-headers 2.6.23

> 
> Having asked google I found that people had this kind of problem
> before, but I could not extract any hint on how to solve this
> there. My checkout of OE dates back to this commit:
> 
> | commit 8ff9eac82736ab3adc5ffd223a39d9eafd2409be
> | Author: Dmitry 'MAD' Artamonow <mad_soft@inbox.ru>
> | Date:   Tue Feb 24 21:38:10 2009 -0800
> 
> I followed Mickey's proposal and derived my conf/distro/nylon.conf
> from minimal.conf adding my preferred versions etc.
> 
> Having had a longer break from nylon maintainership I seem to have
> missed a lot of changes in OE; and I am quite clueless now where to
> start searching for what causes the above error. Any hint?
> 
> Cheers,
> 
> Martin
> 

-- 
Khem Raj

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Re: Link error: host instead of target libc

[Martin Dietze]

On Fri, March 27, 2009, Khem Raj wrote:

> One reason could be that you linker is not aware of sysroot properly. As
> a result it does not append correct sysroot path and ends up looking
> at /lib which ofcourse it your host libc (x86) and hence the error. you
> might need to backport sysroot related patches to binutils 2.14

Thank you for this hint, this solved it. There was a
distro-specific override of EXTRA_OECONF which broke the
EXTRA_OECONF_append defined elsewhere, thus the sysroot property
was never applied while configuring binutils. 

Cheers,

Martin

-- 
----------- / http://herbert.the-little-red-haired-girl.org / -------------
=+= 
Amongst our weaponry are such diverse elements as: fear, surprise, 
ruthless efficiency, an almost fanatical devotion to the Pope, and 
nice red uniforms - Oh damn!