1 # SPDX-License-Identifier: GPL-2.0
3 config HAVE_GENERIC_VDSO
8 config GENERIC_GETTIMEOFDAY
11 This is a generic implementation of gettimeofday vdso.
12 Each architecture that enables this feature has to
13 provide the fallback implementation.
15 config GENERIC_VDSO_32
17 depends on GENERIC_GETTIMEOFDAY && !64BIT
19 This config option helps to avoid possible performance issues
20 in 32 bit only architectures.
22 config GENERIC_COMPAT_VDSO
25 This config option enables the compat VDSO layer.
27 config CROSS_COMPILE_COMPAT_VDSO
28 string "32 bit Toolchain prefix for compat vDSO"
30 depends on GENERIC_COMPAT_VDSO
32 Defines the cross-compiler prefix for compiling compat vDSO.
33 If a 64 bit compiler (i.e. x86_64) can compile the VDSO for
34 32 bit, it does not need to define this parameter.