^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) config HAVE_GENERIC_VDSO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) if HAVE_GENERIC_VDSO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) config GENERIC_GETTIMEOFDAY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) This is a generic implementation of gettimeofday vdso.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) Each architecture that enables this feature has to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) provide the fallback implementation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) config GENERIC_VDSO_32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) depends on GENERIC_GETTIMEOFDAY && !64BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) This config option helps to avoid possible performance issues
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) in 32 bit only architectures.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) config GENERIC_COMPAT_VDSO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) This config option enables the compat VDSO layer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) config GENERIC_VDSO_TIME_NS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) Selected by architectures which support time namespaces in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) VDSO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) endif