pb compiling cross gcc, binutils, glibc and so on ...

[Claus Gindhart]

A good and stable binary package of a complete gcc cross toolchain
is supplied with SuSE Linux 8.0.

This is the version:
----
claugi at claugi-wnt:~> /opt/cross/bin/powerpc-linux-gcc --version
2.95.3
---
I used with cross-toolchain succesfully on various PowerPC platforms.
It is no problem to install a SuSE RPM on a redhat system, if you
have no fear to do a "rpm -i --nodeps".

Unfortunatley these funny guys decided to remove this package in
their new 8.1 package; but maybe they have it still available for
download, or You can purchase a 8.0 version.

-----Original Message-----
From: BREUVART Jean-Charles [mailto:jean-charles.breuvart at airbus.com]
Sent: Donnerstag, 19. Dezember 2002 15:52
To: 'linuxppc-embedded at lists.linuxppc.org'
Subject: pb compiling cross gcc, binutils, glibc and so on ...



Hello world !

I'm trying to create a cdk, the host is a PIII runnning RedHat 8.0 (kernel
2.4.18), and the target is GNU kernel 2.4.20 running on a PPC755B
proprietary board. I've read lots of HOWTOs but I haven't succeeded yet !!!

RedHat 8.0 comes with gcc 3.2, binutils 2.13.90.0.2, make 3.79.1, I don't
know how to get the libc version ...

One told me that gcc 3.2 wasn't a nice version to create a cross-compiler
(actually, I've tried and this seems to be true), so I've downloaded from
www.gnu.org the following :

 - gcc-2.95.3.tar.gz and gcc-core-2.95.3.tar.gz
 - binutils-2.13.90.0.4.tar.gz and binutils-2.12.90.0.7.tar.gz
 - glibc-2.3.tar.gz and glibc-linuxthreads-2.3.tar.gz
 - make-3.80.tar.gz
 - linux-src-2.4.20.tar.gz

I' succeeded in building a native gcc 2.95.3 and make 3.8, and used them to
create the famous Hello world C program, actually all that stuff works. But
I still remain to encounter pb while creating the cdk !!!

here is what I did :

 1. restrict $PATH to /sbin:/bin:/usr/sbin:/usr/bin
 2. build a native gcc core 2.95.3 from scratch in /usr/src/gcc-2.95.3/ dir,
and install it in /usr/local/ (the default) :
      - cd /usr/src/gcc-2.95.3/
      - make clean
      - make distclean
      - ./configure --enable-languages=c,c++ ; this uses my RedHat
distribution's cc, which link to gcc
      - make bootstrap
      - make install
 3 build make 3.80 in /usr/src/make-3.80/ dir, and install it in /usr/local/
(the default) :
      - cd /usr/src/make-3.80/
      - make clean
      - make distclean
      - CC=/usr/local/bin/gcc ./configure (I don't know if it's better to
use gcc 2.95.3 or gcc 3.2, however, this uses RedHat distribution's binutils
!)
      - make
      - make install
 4. build binutils 2.12.90.0.7 for powerpc cross compile, and install it in
/opt/powerpc-linux/ :
      - cd /usr/src/binutils
      - make clean
      - make distclean
      - CC=/usr/local/bin/gcc ./configure --target=powerpc-linux
--enable-shared --with-newlib --prefix=/opt/powerpc-linux (I still don't
know if it's better to use gcc 2.95.3 or gcc 3.2)
      - make
      - make install
5. build gcc core 2.95.3 for powerpc cross compile, and install it in
/opt/powerpc-linux/ :
      - cd /usr/src/gcc-2.95.3/
      - make clean
      - make distclean
      - CC=/usr/local/bin/gcc ./configure --target=powerpc-linux
--enable-shared --enable-languages=c --with-newlib
--prefix=/opt/powerpc-linux
      - add /opt/powerpc-linux at the end of $PATH, otherwise make doesn't
find powerpc-linux-as, powerpc-linux-ld and so on
      - make

Here is the trouble :

choose-temp.c:29: stdio.h: Aucun fichier ou r?pertoire de ce type
choose-temp.c:30: sys/types.h: Aucun fichier ou r?pertoire de ce type
choose-temp.c:32: unistd.h: Aucun fichier ou r?pertoire de ce type
choose-temp.c:35: stdlib.h: Aucun fichier ou r?pertoire de ce type
choose-temp.c:38: sys/file.h: Aucun fichier ou r?pertoire de ce type

there aren't any of those in /opt/powerpc-linux/ or its subdirs

this the same trouble I had when I tried to build directly a cross gcc
2.95.2 for powerpc-linux with my RedHat distribution's gcc and binutils ...

So here are my questions :

 - did anyone do that before ?
 - does a pre-compiled version of such a cross dev toolsets already exists
for x86-pc-linux or sparc-sun ? I heard about "ELDK"
by Wolfgang Denk
 - is what I did wrong ?
 - where should the cross gcc build process search for those headers ? How
to indicate it ?
 - must I use native binutils or cross binutils to build a cross gcc ?
 - to build the bin utilities, including binutils, for the embedded linux
kernel's filesystem that will run on the PPC755B, I think I'll use the cross
gcc to build them from their source code ? I think that the one build in 4.
won't run, they only run on my host ?

if needed, I can change my host and use a Sun Workstation runnning SunOS
5.5.1 ...

So thanks in advance.

Regards,

Jean-Charles Breuvart

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