source: mainline/kernel/generic/include/cc.h@ 8a45bf09

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8a45bf09 was 630b9d35, checked in by Vojtech Horky <vojtechhorky@…>, 11 years ago

Unbreak link-time-optimization builds

Apparently, newer version of GCC discards more functions that it
is supposed to and thus it is necessary to explicitly say that
memset & co implementations shall not be discarded.

  • Property mode set to 100644
File size: 1.8 KB
Line 
1/*
2 * Copyright (c) 2013 Vojtech Horky
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup generic
30 * @{
31 */
32/** @file
33 * Macros related to used compiler (such as GCC-specific attributes).
34 */
35
36#ifndef KERN_CC_H_
37#define KERN_CC_H_
38
39#ifndef __clang__
40#define ATTRIBUTE_OPTIMIZE(opt) \
41 __attribute__ ((optimize(opt)))
42#define ATTRIBUTE_USED \
43 __attribute__ ((used))
44#else
45#define ATTRIBUTE_OPTIMIZE(opt)
46#define ATTRIBUTE_USED
47#endif
48
49
50#endif
51
52/** @}
53 */
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