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authorRoland McGrath <roland@hack.frob.com>2014-06-26 09:31:11 -0700
committerRoland McGrath <roland@hack.frob.com>2014-06-26 09:31:11 -0700
commit52ae23b4bfa09fa1f42e3f659aaa057d1176d06b (patch)
tree7c61e56d7fbbb3c9f82994b5d3d778cc19ee48c2 /sysdeps/unix/sysv/linux/s390/elision-conf.h
parent39507e4a6c52d67780d194dae8cfb636e2dbb87e (diff)
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Move remaining S390 code out of nptl/.
Diffstat (limited to 'sysdeps/unix/sysv/linux/s390/elision-conf.h')
-rw-r--r--sysdeps/unix/sysv/linux/s390/elision-conf.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/s390/elision-conf.h b/sysdeps/unix/sysv/linux/s390/elision-conf.h
new file mode 100644
index 0000000000..d9e97947a0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/elision-conf.h
@@ -0,0 +1,44 @@
+/* Lock elision tunable parameters.
+   Copyright (C) 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/>.  */
+#ifdef ENABLE_LOCK_ELISION
+#ifndef _ELISION_CONF_H
+#define _ELISION_CONF_H 1
+
+#include <pthread.h>
+#include <time.h>
+
+/* Should make sure there is no false sharing on this.  */
+
+struct elision_config
+{
+  int skip_lock_busy;
+  int skip_lock_internal_abort;
+  int skip_lock_out_of_tbegin_retries;
+  int try_tbegin;
+  int skip_trylock_internal_abort;
+};
+
+extern struct elision_config __elision_aconf attribute_hidden;
+
+extern int __pthread_force_elision attribute_hidden;
+
+/* Tell the test suite to test elision for this architecture.  */
+#define HAVE_ELISION 1
+
+#endif
+#endif