xref: /optee_os/core/include/keep.h (revision 9fa130bf691d45011bd5eb3c1aea35b68bb364b7)
1*9fa130bfSJens Wiklander /*
2*9fa130bfSJens Wiklander  * Copyright (c) 2015, Linaro Limited
3*9fa130bfSJens Wiklander  * All rights reserved.
4*9fa130bfSJens Wiklander  *
5*9fa130bfSJens Wiklander  * Redistribution and use in source and binary forms, with or without
6*9fa130bfSJens Wiklander  * modification, are permitted provided that the following conditions are met:
7*9fa130bfSJens Wiklander  *
8*9fa130bfSJens Wiklander  * 1. Redistributions of source code must retain the above copyright notice,
9*9fa130bfSJens Wiklander  * this list of conditions and the following disclaimer.
10*9fa130bfSJens Wiklander  *
11*9fa130bfSJens Wiklander  * 2. Redistributions in binary form must reproduce the above copyright notice,
12*9fa130bfSJens Wiklander  * this list of conditions and the following disclaimer in the documentation
13*9fa130bfSJens Wiklander  * and/or other materials provided with the distribution.
14*9fa130bfSJens Wiklander  *
15*9fa130bfSJens Wiklander  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16*9fa130bfSJens Wiklander  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17*9fa130bfSJens Wiklander  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18*9fa130bfSJens Wiklander  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
19*9fa130bfSJens Wiklander  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20*9fa130bfSJens Wiklander  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21*9fa130bfSJens Wiklander  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22*9fa130bfSJens Wiklander  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23*9fa130bfSJens Wiklander  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24*9fa130bfSJens Wiklander  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25*9fa130bfSJens Wiklander  * POSSIBILITY OF SUCH DAMAGE.
26*9fa130bfSJens Wiklander  */
27*9fa130bfSJens Wiklander #ifndef KEEP_H
28*9fa130bfSJens Wiklander #define KEEP_H
29*9fa130bfSJens Wiklander 
30*9fa130bfSJens Wiklander #include <compiler.h>
31*9fa130bfSJens Wiklander 
32*9fa130bfSJens Wiklander #define KEEP_PAGER(sym) \
33*9fa130bfSJens Wiklander 	const unsigned long ____keep_pager_##sym  \
34*9fa130bfSJens Wiklander 		__section("__keep_meta_vars_pager") = (unsigned long)&sym
35*9fa130bfSJens Wiklander 
36*9fa130bfSJens Wiklander #define KEEP_INIT(sym) \
37*9fa130bfSJens Wiklander 	const unsigned long ____keep_init_##sym  \
38*9fa130bfSJens Wiklander 		__section("__keep_meta_vars_init") = (unsigned long)&sym
39*9fa130bfSJens Wiklander 
40*9fa130bfSJens Wiklander #endif /*KEEP_H*/
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