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1 # SPDX-License-Identifier: GPL-2.0
2
3 config HAVE_GENERIC_VDSO
4         bool
5
6 if HAVE_GENERIC_VDSO
7
8 config GENERIC_GETTIMEOFDAY
9         bool
10         help
11           This is a generic implementation of gettimeofday vdso.
12           Each architecture that enables this feature has to
13           provide the fallback implementation.
14
15 config GENERIC_VDSO_32
16         bool
17         depends on GENERIC_GETTIMEOFDAY && !64BIT
18         help
19           This config option helps to avoid possible performance issues
20           in 32 bit only architectures.
21
22 config GENERIC_COMPAT_VDSO
23         bool
24         help
25           This config option enables the compat VDSO layer.
26
27 config GENERIC_VDSO_TIME_NS
28         bool
29         help
30           Selected by architectures which support time namespaces in the
31           VDSO
32
33 config GENERIC_VDSO_OVERFLOW_PROTECT
34         bool
35         help
36           Select to add multiplication overflow protection to the VDSO
37           time getter functions for the price of an extra conditional
38           in the hotpath.
39
40 endif
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