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
