Re: crosstool-ng 1.10.0; powerpc e500v2; gcc 4.3.2; glibc 2.8 problem

[Khem Raj <raj dot khem at gmail dot com>]

On (11/04/11 19:40), Yann E. MORIN wrote:
> Vladimir, All,
> 
> On Monday 11 April 2011 16:29:13 Vladimir A. Petrov wrote:
> > >>> When you are configuring crosstool-ng, under "C-library" menu, there
> > >>> is an option "Force unwind support" which you need to enable.
> > 
> > Thanks a lot for help provided! I was able mo move a little bit
> > further but unfortunately got another error:
> [--SNIp--]
> > build.log at the end contains the following:
> > 
> > [EXTRA]    Installing C library headers
> > [DEBUG]    ==> Executing: 'make -j16
> > install_root=/opt/build_tools/x-tools/powerpc-e500v2-linux-gnuspe/powerpc-e500v2-linux-gnuspe/sysroot
> > install-bootstrap-headers=yes install-headers'
> > (...)
> > [ALL  ]    make[2]: Entering directory
> > `/var/tmp/vap/ct-ng-linux-ppc-e500v2/.build/src/glibc-2.8'
> 
> PPC e500v2 seems to be not properly supported in glibc. The current sample
> uses eglibc, which has some fixes/enhacements for e500v2, bundled in the
> ports addon.

its mainly the ppc soft float support
there were patches which should be applicable to glibc as well but they
never made into glibc upstream

> 
> > [ALL  ]    /var/tmp/vap/ct-ng-linux-ppc-e500v2/.build/tools/bin/install
> > -c -m 644 include/limits.h /usr/include/limits.h
> > [ALL  ]    /usr/bin/install: cannot remove `/usr/include/limits.h':
> > Permission denied
> 
> I could not reproduce that on my machine here, with your .config but only
> 6 parallel jobs. Try lowering the number of // jobs (eg. try with one, and
> see if it still breaks). If it works with 1 job, then it's the // build
> that is broken. If it still does not, then there might be an issue on your
> build environment.
> 
> > [ERROR]    make[2]: *** [/usr/include/limits.h] Error 1
> > [ALL  ]    make[2]: Leaving directory
> > `/var/tmp/vap/ct-ng-linux-ppc-e500v2/.build/src/glibc-2.8'
> > [ERROR]    make[1]: *** [install-headers] Error 2
> > [ALL  ]    make[1]: Leaving directory
> > `/var/tmp/vap/ct-ng-linux-ppc-e500v2/.build/powerpc-e500v2-linux-gnuspe/build/build-libc-startfiles'
> > 
> > Seems like 'install_root' parameter isn't passed to the sub-make
> > process and that's why install procedure tries to perform action from
> > FS root.
> > 
> > Do you have any ideas why this happens?
> > Please take a look in the attachment for detail logs and configuration I using.
> 
> I tried to build, and it passed the "C library headers & start files" step.
> It broke later, though.
> 
> I can't remember where (maybe earlier on this list, search the archives), but
> I seem to recall that PPC e500v2 requires eglibc.
> 

you can use eglibc since the code is already there for glibc you need to
patch it. eglibc 2.8 should be very much same as glibc 2.8 and give you
a bit better building experience.

grab it from 
http://www.eglibc.org/cgi-bin/viewcvs.cgi/branches/eglibc-2_8/

> Regards,
> Yann E. MORIN.
> 
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-- 
-Khem

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