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1 /* libunwind - a platform-independent unwind library
2    Copyright (C) 2012 Tommi Rantala <tt.rantala@gmail.com>
3 
4 Permission is hereby granted, free of charge, to any person obtaining
5 a copy of this software and associated documentation files (the
6 "Software"), to deal in the Software without restriction, including
7 without limitation the rights to use, copy, modify, merge, publish,
8 distribute, sublicense, and/or sell copies of the Software, and to
9 permit persons to whom the Software is furnished to do so, subject to
10 the following conditions:
11 
12 The above copyright notice and this permission notice shall be
13 included in all copies or substantial portions of the Software.
14 
15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
19 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
20 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
22 
23 #ifndef FLUSH_CACHE_H
24 #define FLUSH_CACHE_H
25 
26 #ifdef HAVE_CONFIG_H
27 # include "config.h"
28 #endif
29 
30 #ifdef HAVE__BUILTIN___CLEAR_CACHE
31 #define flush_cache(ADDR, LEN) \
32   __builtin___clear_cache((ADDR), (ADDR) + (LEN))
33 #else
34 #include <stddef.h>
35 extern void flush_cache (void *addr, size_t len);
36 #endif
37 
38 #endif /* FLUSH_CACHE_H */
39