[Buildroot] Problems using buildroot with crosstoll-ng

[Ettore Campion]

Hi list,

I'm trying to use buildroot with crosstool-ng to create a glibc based
cross-toolchain and root filesystem image for a mipsel target.
I'm using the default settings everywhere besides the kernel-headers:
I'm using here a custom linux tarball based on linux 2.6.22.
The toolchain seems to be correctly generated but there are some
problems in the copy of the generated libraries files to the target
directory.

The fist problem I faced was the following:
CTNG_TUPLE='mipsel-unknown-linux-gnu'
CTNG_SYSROOT='/home/tora/Projects/buildroot-2011.02/output/host/usr/mipsel-unknown-linux-gnu/sys-root'
Copy external toolchain libraries to target...
/bin/sh: line 6: cd:
/home/tora/Projects/buildroot-2011.02/output/host/usr/mipsel-unknown-linux-gnu/sys-root:
No such file or directory
/bin/sh: line 6: cd:
/home/tora/Projects/buildroot-2011.02/output/host/usr/mipsel-unknown-linux-gnu/sys-root:
No such file or directory
/bin/sh: line 6: cd:
/home/tora/Projects/buildroot-2011.02/output/host/usr/mipsel-unknown-linux-gnu/sys-root:
No such file or directory
....
This kind of error does not stop buildroot that continues anyway till
the creation of the root filesystem.. with en empty target/lib.
This seemed to me to be related to a wrong path in
toolchain/toolchain-crosstool-ng/crosstool-ng.mk line 63.
In crosstool-ng menuconfig I specified the sysroot dir like default as
"sysroot", not "sys-root".
I simply modified correspondently the crosstool-ng.mk file and
everything seemed to work beside the fact that flashing the generated
rootfs.jjfs2 led me to a "kernel panic - not syncing: no init found"
message from the kernel.
Taking again a look to crosstool-ng.mk and target/lib I noticed that
was missing ld.so.1, manually adding the lib to target/lib I got rid
of the missing init message but in the serial console I do not see
either any daemons starting nor the login prompt (I got all these
things with a rootfs created selecting a buildroot-uclibc toolchain);
the last messages I read from the serial console are:

VFS: Mounted root (jffs2 filesystem).
Freeing unused kernel memory: 472k freed

Here target/lib
total 3288
drwxr-xr-x  2 tora tora    4096 2011-04-14 22:47 .
drwxr-xr-x 16 tora tora    4096 2011-04-14 22:19 ..
-rwxr-xr-x  1 tora tora  164040 2011-04-14 22:28 ld-2.9.so
lrwxrwxrwx  1 tora tora       9 2011-04-14 22:47 ld.so.1 -> ld-2.9.so
-rwxr-xr-x  1 tora tora 1562336 2011-04-14 22:20 libc-2.9.so
-rwxr-xr-x  1 tora tora   43664 2011-04-14 22:20 libcrypt-2.9.so
lrwxrwxrwx  1 tora tora      15 2011-04-14 22:18 libcrypt.so.1 ->
libcrypt-2.9.so
lrwxrwxrwx  1 tora tora      11 2011-04-14 22:18 libc.so.6 -> libc-2.9.so
-rwxr-xr-x  1 tora tora   14648 2011-04-14 22:20 libdl-2.9.so
lrwxrwxrwx  1 tora tora      12 2011-04-14 22:18 libdl.so.2 -> libdl-2.9.so
-rwxr-xr-x  1 tora tora  224488 2011-04-14 22:20 libgcc_s.so.1
-rwxr-xr-x  1 tora tora  905392 2011-04-14 22:20 libm-2.9.so
lrwxrwxrwx  1 tora tora      11 2011-04-14 22:18 libm.so.6 -> libm-2.9.so
-rwxr-xr-x  1 tora tora   98052 2011-04-14 22:20 libnsl-2.9.so
lrwxrwxrwx  1 tora tora      13 2011-04-14 22:18 libnsl.so.1 -> libnsl-2.9.so
-rwxr-xr-x  1 tora tora   22456 2011-04-14 22:20 libnss_dns-2.9.so
lrwxrwxrwx  1 tora tora      17 2011-04-14 22:18 libnss_dns.so.2 ->
libnss_dns-2.9.so
-rwxr-xr-x  1 tora tora   53748 2011-04-14 22:20 libnss_files-2.9.so
lrwxrwxrwx  1 tora tora      19 2011-04-14 22:18 libnss_files.so.2 ->
libnss_files-2.9.so
-rwxr-xr-x  1 tora tora  105032 2011-04-14 22:20 libpthread-2.9.so
lrwxrwxrwx  1 tora tora      17 2011-04-14 22:18 libpthread.so.0 ->
libpthread-2.9.so
-rwxr-xr-x  1 tora tora   87824 2011-04-14 22:20 libresolv-2.9.so
lrwxrwxrwx  1 tora tora      16 2011-04-14 22:18 libresolv.so.2 ->
libresolv-2.9.so
-rwxr-xr-x  1 tora tora   37176 2011-04-14 22:20 librt-2.9.so
lrwxrwxrwx  1 tora tora      12 2011-04-14 22:18 librt.so.1 -> librt-2.9.so
-rwxr-xr-x  1 tora tora    9980 2011-04-14 22:20 libutil-2.9.so
lrwxrwxrwx  1 tora tora      14 2011-04-14 22:18 libutil.so.1 -> libutil-2.9.so


What is going wrong? Is still missing something? Did I do something
conceptually wrong?
I do not know how to debug further. Any help would be appreciated.

Thank you in advance,
Ettore