diff options
Diffstat (limited to 'nptl/sysdeps/s390/pthread_spin_unlock.c')
| -rw-r--r-- | nptl/sysdeps/s390/pthread_spin_unlock.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/nptl/sysdeps/s390/pthread_spin_unlock.c b/nptl/sysdeps/s390/pthread_spin_unlock.c new file mode 100644 index 0000000000..a59c945293 --- /dev/null +++ b/nptl/sysdeps/s390/pthread_spin_unlock.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2003. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Ugly hack to avoid the declaration of pthread_spin_init. */ +#define pthread_spin_init pthread_spin_init_XXX +#include "pthreadP.h" +#undef pthread_spin_init + +int +pthread_spin_unlock (pthread_spinlock_t *lock) +{ + __asm __volatile (" xc %O0(4,%R0),%0\n" + " bcr 15,0" + : "=Q" (*lock) : "m" (*lock) : "cc" ); + return 0; +} +strong_alias (pthread_spin_unlock, pthread_spin_init) |