Re: libanl + atexit + more

[Andreas Jaeger <aj at suse dot de>]

Andreas Jaeger <aj@suse.de> writes:

> Ulrich Drepper <drepper@redhat.com> writes:
> 
> > Second, I haven't gotten any comments on the atexit() implementation
> > changes I made.  They are so non-obvious that I thought the one or
> > other would comment.  The good thing is that this implementation
> > should be very robust.  The bad thing is that old programs cannot be
> > fixed, everything (means DSOs) has to be relinked (if they have this
> > problem which is fortunately rare).  I don't think this is a problem.
> > Note that today (until sometime next week :-) this atexit()
> > implementation is not Unix conforming.  Unix currently forbids this
> > behavior (this means the registered functions are called at dlclose()
> > time).  I've filed an defect report which will be handled next week.
> 
> make check fails now for me:
> 
> GCONV_PATH=/builds/glibc/main-gcc-2.95/iconvdata LC_ALL=C   /builds/glibc/main-gcc-2.95/elf/ld-linux.so.2 --library-path /builds/glibc/main-gcc-2.95:/builds/glibc/main-gcc-2.95/math:/builds/glibc/main-gcc-2.95/elf:/builds/glibc/main-gcc-2.95/dlfcn:/builds/glibc/main-gcc-2.95/nss:/builds/glibc/main-gcc-2.95/nis:/builds/glibc/main-gcc-2.95/rt:/builds/glibc/main-gcc-2.95/resolv:/builds/glibc/main-gcc-2.95/crypt:/builds/glibc/main-gcc-2.95/linuxthreads /builds/glibc/main-gcc-2.95/dlfcn/tstcxaatexit  > /builds/glibc/main-gcc-2.95/dlfcn/tstcxaatexit.out
> make[2]: *** [/builds/glibc/main-gcc-2.95/dlfcn/tstcxaatexit.out] Error 1
> 
> gromit:/builds/glibc/main-gcc-2.95:[0]$ cat dlfcn/tstcxaatexit.out 
> cannot open "modcxaatexit.so": /builds/glibc/main-gcc-2.95/dlfcn/modcxaatexit.so: undefined symbol: __dso_handle
> 
> 
> This is with gcc 2.95.2.  With a 3.0 pre release I get a segmentation
> fault, I'll send details tomorrow.

It's not tomorrow ;-) but here's the failure:

gromit:/usr/src/cvs/libc/dlfcn:[0]$ GCONV_PATH=/builds/glibc/20010106-gcc-2.97.test/iconvdata LC_ALL=C   /builds/glibc/20010106-gcc-2.97.test/elf/ld-linux.so.2 --library-path /builds/glibc/20010106-gcc-2.97.test:/builds/glibc/20010106-gcc-2.97.test/math:/builds/glibc/20010106-gcc-2.97.test/elf:/builds/glibc/20010106-gcc-2.97.test/dlfcn:/builds/glibc/20010106-gcc-2.97.test/nss:/builds/glibc/20010106-gcc-2.97.test/nis:/builds/glibc/20010106-gcc-2.97.test/rt:/builds/glibc/20010106-gcc-2.97.test/resolv:/builds/glibc/20010106-gcc-2.97.test/crypt:/builds/glibc/20010106-gcc-2.97.test/linuxthreads /builds/glibc/20010106-gcc-2.97.test/dlfcn/tstcxaatexit
This is bar
module unload didn't change `v'
Segmentation fault

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.inka.de
    http://www.suse.de/~aj