Build T2 on Ubuntu 7.10

[Marian Aldenhövel-2]

Hi,

I have been tasked of constructing an installation of linux to be deployed on
a number of "semi-embedded" system. These are x86-based small form-factor PCs
booting off CF-Card.

I decided to give T2 a try as it looks like it can give very good control at
what gets included in a build while not having to start really from the ground
up.

I have tried to build the T2 default embedded target on an installation of
Ubuntu 7.10 (server edition). And it fails while building the perl package:

Here's the tail of what gets output to the console:

 >`sh  cflags "optimize='-O2'" xsutils.o`  xsutils.c
 >          CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
 >-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
 >-D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
 >-Wdeclaration-after-statement -Wendif-labels -Wc++-compat
 >`sh  cflags "optimize='-O2'" generate_uudmap.o`  generate_uudmap.c
 >          CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
 >-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
 >-D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
 >-Wdeclaration-after-statement -Wendif-labels -Wc++-compat
 >i486-t2-linux-uclibc-gcc -o generate_uudmap -L/usr/local/lib
 >generate_uudmap.o -lnsl -ldl -lm -lcrypt -lutil -lc  -lm
 >./generate_uudmap >uudmap.h
 >/bin/sh: ./generate_uudmap: No such file or directory
 >make: *** [uudmap.h] Error 127
 >Due to previous errors, no 1-perl.log file!
 >(Try enabling xtrace in the config to track an error inside the build >system.)
 >--- BUILD ERROR ---
 >Creating file list and doing final adaptions ...
 >Searching for orphaned files ...
 >Found 6 files for this package.
 >Found 1 orphaned files for this package.
 >Clear (old) md5sums ...
 >Creating md5sum files ... done.
 >Creating package description ...
 >Making post-install adaptions.
 >-> $root/var/adm/logs/1-perl.out -> 1-perl.err
 >root@kboxdev:/home/kbox/t2# == 04/02/08 18:04:08 =[1]=> Aborted building
 >package perl.
 >-> Unmounting loop mounts ...

When checking after the abort I can find all of generate_uudmap.c,
generate_uudmap.o and generate_uudmap.

I have found references to Ubuntu having /bin/sh symlinked to /bin/dash and
that causing problems. I have relinked to /bin/bash, but this seems to be a
different cause.

Any hints? Need more information?

Ciao, MM
--
Marian Aldenhövel, Rosenhain 23, 53123 Bonn
http://www.marian-aldenhoevel.de
"I ran some quick calculations on it. He's about 80% on the right
  track.  That leaves him only 20% dead when he crashes." Bob C


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[Lars Kuhtz]

Hi,

I had a similar problem when building perl on Ubuntu. I could fix this by
replacing hardcoded gcc by generic $CC in perl.conf. Although your
error looks different you might try with 'svn merge -c 26311' (for trunk), or
manually replace gcc by $CC (or must it be \$CC, Rene?) in the confopt entry
in perl.conf.

regards,
Lars


On Wednesday 02 April 2008 18:11, Marian Aldenhövel wrote:

> Hi,
>
> I have been tasked of constructing an installation of linux to be deployed
> on a number of "semi-embedded" system. These are x86-based small
> form-factor PCs booting off CF-Card.
>
> I decided to give T2 a try as it looks like it can give very good control
> at what gets included in a build while not having to start really from the
> ground up.
>
> I have tried to build the T2 default embedded target on an installation of
> Ubuntu 7.10 (server edition). And it fails while building the perl package:
>
> Here's the tail of what gets output to the console:
>  >`sh  cflags "optimize='-O2'" xsutils.o`  xsutils.c
>  >          CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
>  >-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
>  >-D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
>  >-Wdeclaration-after-statement -Wendif-labels -Wc++-compat
>  >`sh  cflags "optimize='-O2'" generate_uudmap.o`  generate_uudmap.c
>  >          CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
>  >-fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
>  >-D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
>  >-Wdeclaration-after-statement -Wendif-labels -Wc++-compat
>  >i486-t2-linux-uclibc-gcc -o generate_uudmap -L/usr/local/lib
>  >generate_uudmap.o -lnsl -ldl -lm -lcrypt -lutil -lc  -lm
>  >./generate_uudmap >uudmap.h
>  >/bin/sh: ./generate_uudmap: No such file or directory
>  >make: *** [uudmap.h] Error 127
>  >Due to previous errors, no 1-perl.log file!
>  >(Try enabling xtrace in the config to track an error inside the build
>  > >system.) --- BUILD ERROR ---
>  >Creating file list and doing final adaptions ...
>  >Searching for orphaned files ...
>  >Found 6 files for this package.
>  >Found 1 orphaned files for this package.
>  >Clear (old) md5sums ...
>  >Creating md5sum files ... done.
>  >Creating package description ...
>  >Making post-install adaptions.
>  >-> $root/var/adm/logs/1-perl.out -> 1-perl.err
>  >root@kboxdev:/home/kbox/t2# == 04/02/08 18:04:08 =[1]=> Aborted building
>  >package perl.
>  >-> Unmounting loop mounts ...
>
> When checking after the abort I can find all of generate_uudmap.c,
> generate_uudmap.o and generate_uudmap.
>
> I have found references to Ubuntu having /bin/sh symlinked to /bin/dash and
> that causing problems. I have relinked to /bin/bash, but this seems to be a
> different cause.
>
> Any hints? Need more information?
>
> Ciao, MM

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[Rene Rebe]

Maybe we should merge the disabling the perl cross build for default  
builds
as it is too error prone. In trunk we already do not cross build perl  
by default
anymore (despite that the perl 5.10 perl has new, major cross build  
regressions,
anyway).

Oh, I just see this change is already in 7.0. Can it be the case that  
you
are building a slightly older 7.0 release tarball? Can you re-try with  
the
branches/7.0 from SVN?

Lars: I had to revert that $CC change as that broke building T2 on T2!  
The
reason is that this $CC is used for configure checks, and when the cross
compiler is used the configure is usually completely messed up.

The best way to probably fix correctly cross building perl is to not  
write the
perl config from the T2 package selection and C library feature set as
opposed to let this perl supplied script check all this out (most test
try to run the resulting binary anyway, which is not suitable while
cross building anyway, despite if you would run the resulting executable
on the target hardware or an emulator - both not to appealing way that,
for example, scratch box is offering).

Yours,

On 02.04.2008, at 19:48, Lars Kuhtz wrote:

> Hi,
>
> I had a similar problem when building perl on Ubuntu. I could fix  
> this by
> replacing hardcoded gcc by generic $CC in perl.conf. Although your
> error looks different you might try with 'svn merge -c 26311' (for  
> trunk), or
> manually replace gcc by $CC (or must it be \$CC, Rene?) in the  
> confopt entry
> in perl.conf.
>
> regards,
> Lars
>
>
> On Wednesday 02 April 2008 18:11, Marian Aldenhövel wrote:
>> Hi,
>>
>> I have been tasked of constructing an installation of linux to be  
>> deployed
>> on a number of "semi-embedded" system. These are x86-based small
>> form-factor PCs booting off CF-Card.
>>
>> I decided to give T2 a try as it looks like it can give very good  
>> control
>> at what gets included in a build while not having to start really  
>> from the
>> ground up.
>>
>> I have tried to build the T2 default embedded target on an  
>> installation of
>> Ubuntu 7.10 (server edition). And it fails while building the perl  
>> package:
>>
>> Here's the tail of what gets output to the console:
>>> `sh  cflags "optimize='-O2'" xsutils.o`  xsutils.c
>>>         CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
>>> -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
>>> -D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
>>> -Wdeclaration-after-statement -Wendif-labels -Wc++-compat
>>> `sh  cflags "optimize='-O2'" generate_uudmap.o`  generate_uudmap.c
>>>         CCCMD =  i486-t2-linux-uclibc-gcc -DPERL_CORE -c
>>> -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE
>>> -D_FILE_OFFSET_BITS=64  -std=c89 -O2 -Wall -ansi   -W -Wextra
>>> -Wdeclaration-after-statement -Wendif-labels -Wc++-compat
>>> i486-t2-linux-uclibc-gcc -o generate_uudmap -L/usr/local/lib
>>> generate_uudmap.o -lnsl -ldl -lm -lcrypt -lutil -lc  -lm
>>> ./generate_uudmap >uudmap.h
>>> /bin/sh: ./generate_uudmap: No such file or directory
>>> make: *** [uudmap.h] Error 127
>>> Due to previous errors, no 1-perl.log file!
>>> (Try enabling xtrace in the config to track an error inside the  
>>> build
>>>> system.) --- BUILD ERROR ---
>>> Creating file list and doing final adaptions ...
>>> Searching for orphaned files ...
>>> Found 6 files for this package.
>>> Found 1 orphaned files for this package.
>>> Clear (old) md5sums ...
>>> Creating md5sum files ... done.
>>> Creating package description ...
>>> Making post-install adaptions.
>>> -> $root/var/adm/logs/1-perl.out -> 1-perl.err
>>> root@kboxdev:/home/kbox/t2# == 04/02/08 18:04:08 =[1]=> Aborted  
>>> building
>>> package perl.
>>> -> Unmounting loop mounts ...
>>
>> When checking after the abort I can find all of generate_uudmap.c,
>> generate_uudmap.o and generate_uudmap.
>>
>> I have found references to Ubuntu having /bin/sh symlinked to /bin/
>> dash and
>> that causing problems. I have relinked to /bin/bash, but this seems  
>> to be a
>> different cause.
>>
>> Any hints? Need more information?
>>
>> Ciao, MM
>
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> If you wish to unsubscribe from this mailing, send mail to
> lists@... with a subject of: unsubscribe t2

--
   René Rebe - ExactCODE GmbH - Europe, Germany, Berlin
   Geschäftsführer: Susanne Klaus, René Rebe
   Sitz: Berlin, Amtsgericht Charlottenburg HRB 105 123 B
   USt-IdNr.: DE251602478
   http://exactcode.de | http://t2-project.org | http://rene.rebe.name


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[Marian Aldenhövel-2]

Hi,

Thank you Lars, Thank you Rene. I succeeded in building T2 trunk on my
Ubuntu-Host immediately.

I even managed to move kernel and rootfs to a CF card, Syslinux that
and boot it. It now comes up to the point where it gives me a warning
about "could not create initial console" and then a series of

   run[xxx]: segfault at..

messages.

That is to a screen connected to the little box I am trying to Linuxify.

I believe that is really beyond the scope of building T2 embedded and
I will have to look into the linux boot process, minit and such more
in-depth. Pointers to places where I can learn that stuff are
appreciated.

But for now another fat thank you all for fantastic work!

Ciao, MM
--
Marian Aldenhövel, Rosenhain 23, 53123 Bonn
http://www.marian-aldenhoevel.de
"I ran some quick calculations on it. He's about 80% on the right
  track.  That leaves him only 20% dead when he crashes." Bob C


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