Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
selftests: vDSO: vdso_test_abi: Add test for clock_getres_time64()
Some architectures will start to implement this function.
Make sure it works correctly.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20251223-vdso-compat-time32-v1-4-97ea7a06a543@linutronix.de
authored by
Thomas Weißschuh
and committed by
Thomas Gleixner
4e6a2312
1dcd1273
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-1
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-1
tools/testing/selftests/vDSO/vdso_test_abi.c
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tools/testing/selftests/vDSO/vdso_test_abi.c
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typedef long (*vdso_clock_gettime_t)(clockid_t clk_id, struct timespec *ts);
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typedef long (*vdso_clock_gettime64_t)(clockid_t clk_id, struct vdso_timespec64 *ts);
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typedef long (*vdso_clock_getres_t)(clockid_t clk_id, struct timespec *ts);
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typedef long (*vdso_clock_getres_time64_t)(clockid_t clk_id, struct vdso_timespec64 *ts);
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typedef time_t (*vdso_time_t)(time_t *t);
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static const char * const vdso_clock_name[] = {
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}
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}
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#ifdef __NR_clock_getres_time64
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static void vdso_test_clock_getres_time64(clockid_t clk_id)
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{
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int clock_getres_fail = 0;
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/* Find clock_getres. */
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vdso_clock_getres_time64_t vdso_clock_getres_time64 =
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(vdso_clock_getres_time64_t)vdso_sym(version, name[7]);
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if (!vdso_clock_getres_time64) {
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ksft_print_msg("Couldn't find %s\n", name[7]);
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ksft_test_result_skip("%s %s\n", name[7],
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vdso_clock_name[clk_id]);
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return;
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}
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struct vdso_timespec64 ts, sys_ts;
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long ret = VDSO_CALL(vdso_clock_getres_time64, 2, clk_id, &ts);
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if (ret == 0) {
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ksft_print_msg("The vdso resolution is %lld %lld\n",
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(long long)ts.tv_sec, (long long)ts.tv_nsec);
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} else {
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clock_getres_fail++;
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}
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ret = syscall(__NR_clock_getres_time64, clk_id, &sys_ts);
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ksft_print_msg("The syscall resolution is %lld %lld\n",
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(long long)sys_ts.tv_sec, (long long)sys_ts.tv_nsec);
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if ((sys_ts.tv_sec != ts.tv_sec) || (sys_ts.tv_nsec != ts.tv_nsec))
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clock_getres_fail++;
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if (clock_getres_fail > 0) {
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ksft_test_result_fail("%s %s\n", name[7],
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vdso_clock_name[clk_id]);
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} else {
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ksft_test_result_pass("%s %s\n", name[7],
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vdso_clock_name[clk_id]);
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}
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}
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#else /* !__NR_clock_getres_time64 */
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static void vdso_test_clock_getres_time64(clockid_t clk_id)
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{
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ksft_test_result_skip("%s %s\n", name[7], vdso_clock_name[clk_id]);
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}
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#endif /* __NR_clock_getres_time64 */
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/*
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* This function calls vdso_test_clock_gettime and vdso_test_clock_getres
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* with different values for clock_id.
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vdso_test_clock_gettime64(clock_id);
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vdso_test_clock_getres(clock_id);
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vdso_test_clock_getres_time64(clock_id);
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}
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-
#define VDSO_TEST_PLAN 29
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#define VDSO_TEST_PLAN 38
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int main(int argc, char **argv)
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{