Vincenzo Frascino <vincenzo.frascino@xxxxxxx> writes: > The current version of the multiarch vDSO selftest verifies only > gettimeofday. > > Extend the vDSO selftest to clock_getres, to verify that the > syscall and the vDSO library function return the same information. > > The extension has been used to verify the hrtimer_resoltion fix. This is passing for me even without patch 1 applied, shouldn't it fail without the fix? What am I missing? # uname -r 5.2.0-rc2-gcc-8.2.0 # ./vdso_clock_getres clock_id: CLOCK_REALTIME [PASS] clock_id: CLOCK_BOOTTIME [PASS] clock_id: CLOCK_TAI [PASS] clock_id: CLOCK_REALTIME_COARSE [PASS] clock_id: CLOCK_MONOTONIC [PASS] clock_id: CLOCK_MONOTONIC_RAW [PASS] clock_id: CLOCK_MONOTONIC_COARSE [PASS] cheers > Cc: Shuah Khan <shuah@xxxxxxxxxx> > Signed-off-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > --- > > Note: This patch is independent from the others in this series, hence it > can be merged singularly by the kselftest maintainers. > > tools/testing/selftests/vDSO/Makefile | 2 + > .../selftests/vDSO/vdso_clock_getres.c | 124 ++++++++++++++++++ > 2 files changed, 126 insertions(+) > create mode 100644 tools/testing/selftests/vDSO/vdso_clock_getres.c