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| -rw-r--r-- | ChangeLog | 4 | ||||
| -rw-r--r-- | sysdeps/generic/elide.h | 25 |
2 files changed, 29 insertions, 0 deletions
@@ -1,3 +1,7 @@ +2014-06-14 Andi Kleen <ak@linux.intel.com> + + * sysdeps/generic/elide.h: New file. + 2014-06-13 Stefan Liebler <stli@linux.vnet.ibm.com> * Makefile (installed-headers): Adjust path of pthread.h header. diff --git a/sysdeps/generic/elide.h b/sysdeps/generic/elide.h new file mode 100644 index 0000000000..180e632426 --- /dev/null +++ b/sysdeps/generic/elide.h @@ -0,0 +1,25 @@ +/* elide.h: Fallback noop lock elision support. + 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/>. */ +#ifndef ELIDE_H +#define ELIDE_H 1 + +#define ELIDE_LOCK(adapt_count, is_lock_free) 0 +#define ELIDE_TRYLOCK(adapt_count, is_lock_free, write) 0 +#define ELIDE_UNLOCK(is_lock_free) 0 + +#endif |