about summary refs log tree commit diff
path: root/sysdeps/hppa/nptl/pthread_spin_unlock.c
diff options
context:
space:
mode:
authorCarlos O'Donell <carlos@systemhalted.org>2014-04-29 03:08:48 -0400
committerCarlos O'Donell <carlos@systemhalted.org>2014-04-29 04:20:39 -0400
commit5abebba403181de898bbea4ee1bcce5f088c663b (patch)
tree0c4a8eac85e1f2db87621b524bfcbdeb24c2c8f9 /sysdeps/hppa/nptl/pthread_spin_unlock.c
parent4e4a58f4ee45cea6f3083af8f12d3834bb999555 (diff)
downloadglibc-5abebba403181de898bbea4ee1bcce5f088c663b.tar.gz
glibc-5abebba403181de898bbea4ee1bcce5f088c663b.tar.xz
glibc-5abebba403181de898bbea4ee1bcce5f088c663b.zip
Relocate hppa from ports to libc.
Diffstat (limited to 'sysdeps/hppa/nptl/pthread_spin_unlock.c')
-rw-r--r--sysdeps/hppa/nptl/pthread_spin_unlock.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/sysdeps/hppa/nptl/pthread_spin_unlock.c b/sysdeps/hppa/nptl/pthread_spin_unlock.c
new file mode 100644
index 0000000000..5a8aed8e38
--- /dev/null
+++ b/sysdeps/hppa/nptl/pthread_spin_unlock.c
@@ -0,0 +1,28 @@
+/* Copyright (C) 2005-2014 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "pthreadP.h"
+
+int
+pthread_spin_unlock (pthread_spinlock_t *lock)
+{
+  int tmp = 0;
+  /* This should be a memory barrier to newer compilers */
+  __asm__ __volatile__ ("stw,ma %1,0(%0)"
+                        : : "r" (lock), "r" (tmp) : "memory");
+  return 0;
+}