Re: _cthread_init_routine and _cthread_exit_routine

[Neal H. Walfield]

> >  Does that mean glibc should be to actually call
                                   ^fixed
> > _cthread_exit_initializer?  Should I file a bug report?
> 
> Huh?  I just described why no further libc change is required.

Allow me to illustrate the problem in more concrete terms.  Consider
the following program:

  #include <stdio.h>
  #include <stdlib.h>
  
  void
  _cthread_exit_routine (int status)
  {
    printf ("%s called.\n", __FUNCTION__);
    exit (status);
  }
  
  int
  main (int argc, char *argv)
  {
    return 0;
  }

libc should call _cthread_exit_routine when main returns.  Yet,
running this program on a Hurd box produces no output.  Putting a
break point on exit (which is called when main returns), shows:

  #0  0x0107eca6 in exit () from /lib/libc.so.0.3
  #1  0x0106716e in __libc_start_main () from /lib/libc.so.0.3
  #2  0x08048421 in _start () at ../sysdeps/i386/elf/start.S:102

So, libc/sysdeps/mach/start.c is not being used and there is no other
code to call _cthread_exit_routine.

Is that clearer?

Thanks,
Neal