Linux Kernel  3.7.1
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vdso.h
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1 /*
2  * Copyright (C) 2012 ARM Limited
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful,
9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11  * GNU General Public License for more details.
12  *
13  * You should have received a copy of the GNU General Public License
14  * along with this program. If not, see <http://www.gnu.org/licenses/>.
15  */
16 #ifndef __ASM_VDSO_H
17 #define __ASM_VDSO_H
18 
19 #ifdef __KERNEL__
20 
21 /*
22  * Default link address for the vDSO.
23  * Since we randomise the VDSO mapping, there's little point in trying
24  * to prelink this.
25  */
26 #define VDSO_LBASE 0x0
27 
28 #ifndef __ASSEMBLY__
29 
30 #include <generated/vdso-offsets.h>
31 
32 #define VDSO_SYMBOL(base, name) \
33 ({ \
34  (void *)(vdso_offset_##name - VDSO_LBASE + (unsigned long)(base)); \
35 })
36 
37 #endif /* !__ASSEMBLY__ */
38 
39 #endif /* __KERNEL__ */
40 
41 #endif /* __ASM_VDSO_H */