include/vdso/datapage.h

1 /* SPDX-License-Identifier: GPL-2.0 */
10 #include <uapi/asm-generic/errno-base.h>
42  * struct vdso_timestamp - basetime per clock_id
46  * There is one vdso_timestamp object in vvar for each vDSO-accelerated
47  * clock_id. For high-resolution clocks, this encodes the time
51  * To be noticed that for highres clocks nsec is left-shifted by
60  * struct vdso_data - vdso datapage representation
118  * With the hidden visibility, the compiler simply generates a PC-relative
127  * - __arch_get_vdso_data(): to get the vdso datapage.
128  * - __arch_get_hw_counter(): to get the hw counter based on the
130  * - gettimeofday_fallback(): fallback for gettimeofday.
131  * - clock_gettime_fallback(): fallback for clock_gettime.
132  * - clock_getres_fallback(): fallback for clock_getres.