122 lines
2.9 KiB
C
122 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2019 Linaro Limited. All rights reserved.
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* Author: Rafael David Tinoco <rafael.tinoco@linaro.org>
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*/
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/*
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* Basic test for clock_gettime(2) on multiple clocks:
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*
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* 1) CLOCK_REALTIME
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* 2) CLOCK_MONOTONIC
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* 3) CLOCK_PROCESS_CPUTIME_ID
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* 4) CLOCK_THREAD_CPUTIME_ID
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* 5) CLOCK_REALTIME_COARSE
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* 6) CLOCK_MONOTONIC_COARSE
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* 7) CLOCK_MONOTONIC_RAW
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* 8) CLOCK_BOOTTIME
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*/
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#include "config.h"
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#include "time64_variants.h"
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#include "tst_timer.h"
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#include "tst_safe_clocks.h"
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struct test_case {
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clockid_t clktype;
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int allow_inval;
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};
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static struct test_case tc[] = {
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{
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.clktype = CLOCK_REALTIME,
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},
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{
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.clktype = CLOCK_MONOTONIC,
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},
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{
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.clktype = CLOCK_PROCESS_CPUTIME_ID,
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},
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{
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.clktype = CLOCK_THREAD_CPUTIME_ID,
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},
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{
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.clktype = CLOCK_REALTIME_COARSE,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_MONOTONIC_COARSE,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_MONOTONIC_RAW,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_BOOTTIME,
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.allow_inval = 1,
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},
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};
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static struct tst_ts spec;
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static struct time64_variants variants[] = {
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{ .clock_gettime = libc_clock_gettime, .ts_type = TST_LIBC_TIMESPEC, .desc = "vDSO or syscall with libc spec"},
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#if (__NR_clock_gettime != __LTP__NR_INVALID_SYSCALL)
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{ .clock_gettime = sys_clock_gettime, .ts_type = TST_KERN_OLD_TIMESPEC, .desc = "syscall with old kernel spec"},
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#endif
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#if (__NR_clock_gettime64 != __LTP__NR_INVALID_SYSCALL)
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{ .clock_gettime = sys_clock_gettime64, .ts_type = TST_KERN_TIMESPEC, .desc = "syscall time64 with kernel spec"},
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#endif
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};
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static void setup(void)
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{
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tst_res(TINFO, "Testing variant: %s", variants[tst_variant].desc);
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}
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static void verify_clock_gettime(unsigned int i)
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{
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struct time64_variants *tv = &variants[tst_variant];
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int ret;
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memset(&spec, 0, sizeof(spec));
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spec.type = tv->ts_type;
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TEST(tv->clock_gettime(tc[i].clktype, tst_ts_get(&spec)));
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if (TST_RET == -1) {
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/* errors: allow unsupported clock types */
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if (tc[i].allow_inval && TST_ERR == EINVAL) {
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tst_res(TPASS, "clock_gettime(2): unsupported clock %s failed as expected",
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tst_clock_name(tc[i].clktype));
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} else {
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tst_res(TFAIL | TTERRNO, "clock_gettime(2): clock %s failed unexpectedly",
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tst_clock_name(tc[i].clktype));
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}
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} else {
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/* success: also check if timespec was changed */
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ret = tst_ts_valid(&spec);
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if (!ret) {
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tst_res(TPASS, "clock_gettime(2): clock %s passed",
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tst_clock_name(tc[i].clktype));
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} else if (ret == -1) {
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tst_res(TFAIL, "clock_gettime(2): clock %s passed, unchanged timespec",
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tst_clock_name(tc[i].clktype));
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} else if (ret == -2) {
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tst_res(TFAIL, "clock_gettime(2): clock %s passed, Corrupted timespec",
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tst_clock_name(tc[i].clktype));
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}
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}
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}
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static struct tst_test test = {
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.test = verify_clock_gettime,
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.tcnt = ARRAY_SIZE(tc),
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.test_variants = ARRAY_SIZE(variants),
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.setup = setup,
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.needs_root = 1,
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};
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