Re: [CT 0.28rc28]: undefined reference to `i_am_not_a_leaf'

[Dimitry Andric <dimitry at andric dot com>]

On 2004-07-09 at 10:38:30 Martin Egholm Nielsen wrote:

>>> /powerpc-405-linux-gnu/gcc-3.4.0-glibc-2.2.5/build-glibc/csu/crtn.o
>>> /root/crosstool-0.28-rc28/build/powerpc-405-linux-gnu/gcc-3.4.0-glibc-2.2.5/build-glibc/linuxthreads/libpthread.so:
>>> undefined reference to `i_am_not_a_leaf'
>> I can't reproduce your problem here.  Can you post the
>> exact steps to reproduce it?
> Sure... I just modified TARGET_CFLAGS in "powerpc-405.dat":

> TARGET_CFLAGS="-Os -mcpu=405"

This is precisely what my patch intended to do, but not for *all*
source files, only for initfini.c.  I only misread your glibc version,
sorry. ;)

It simply adds the lines:

ifeq ($(subdir),linuxthreads)
CFLAGS-pt-initfini.s = $(fno-unit-at-a-time)
endif

to linuxthreads/sysdeps/unix/sysv/linux/powerpc/Makefile. However,
this depends on $(fno-unit-at-a-time) being introduced by the various
configure scripts, and of course the above directory needs to exist,
which isn't the case with 2.2.5, it seems.


> http://lists.arm.linux.org.uk/pipermail/linux-arm-toolchain/2004-June/000040.html

> So I just added the "-fno-unit-at-a-time" parameter to the list, as well:

Yes, that should fix it, but it isn't needed to compile _everything_
using that flag, only initfini.c (which is used to generate crt*.s).
That's why the patch for glibc 2.3.2 only adds it to CFLAGS-initfini.s
and CFLAGS-pt-initfini.s.

I've attempted to backport glibc-2.3.2-allow-gcc-3.4-nounit.patch to
apply to glibc 2.2.5, can you please try the following patches?

http://www.andric.com/cross/patches/glibc-2.2.5-allow-gcc-3.4-nounit.patch.bz2
http://www.andric.com/cross/patches/glibc-linuxthreads-2.2.5-allow-gcc-3.4-nounit.patch.bz2

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