[Bug libfortran/41504] New: Incorrect __gthread_active_p version with weak symbols (pthread_cancel does not bring in pthread_mutex_trylock)

2009-09-29 Thread DumaShkurko at gmail dot com 
Hello,

Compile the following file with gcc:

void s () {
  pthread_cancel();
  /*pthread_mutex_trylock (); */
}

and the following file with gfortran:
program test
   print*, "Bug"
end program test

Link both files using "gfortran -static -pthread". Note that the program dies
with SEGV in pthread_mutex_trylock (weak symbol equal to 0x0).

It is due to the fact that __gthread_active_p checks only for pthread_cancel
and pthread_mutex_trylock is not automatically taken from libpthread.a.

Un-commenting pthread_mutex_trylock in s() fixes the problem.

Regards,
Dima


-- 
   Summary: Incorrect __gthread_active_p version with weak symbols
(pthread_cancel does not bring in pthread_mutex_trylock)
   Product: gcc
   Version: 4.3.4
Status: UNCONFIRMED
  Severity: normal
  Priority: P3
 Component: libfortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: DumaShkurko at gmail dot com
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41504

[Bug libfortran/41504] Incorrect __gthread_active_p version with weak symbols (pthread_cancel does not bring in pthread_mutex_trylock)

2009-09-29 Thread DumaShkurko at gmail dot com 


--- Comment #2 from DumaShkurko at gmail dot com  2009-09-29 15:09 ---
Is it possible to adjust specs file for -static and/or -pthread?


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41504