1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Crackerjack Project., 2007-2008 ,Hitachi, Ltd
4 * Authors: Takahiro Yasui <takahiro.yasui.mp@hitachi.com>,
5 * Yumiko Sugita <yumiko.sugita.yf@hitachi.com>,
6 * Satoshi Fujiwara <sa-fuji@sdl.hitachi.co.jp>
7 * LTP authors:
8 * Manas Kumar Nayak maknayak@in.ibm.com>
9 * Zeng Linggang <zenglg.jy@cn.fujitsu.com>
10 * Cyril Hrubis <chrubis@suse.cz>
11 */
12
13 #include <errno.h>
14
15 #include "tst_timer.h"
16 #include "lapi/posix_clocks.h"
17
18 static struct test_case {
19 char *name;
20 clockid_t clk_id;
21 int ret;
22 int err;
23 } tcase[] = {
24 {"REALTIME", CLOCK_REALTIME, 0, 0},
25 {"MONOTONIC", CLOCK_MONOTONIC, 0, 0},
26 {"PROCESS_CPUTIME_ID", CLOCK_PROCESS_CPUTIME_ID, 0, 0},
27 {"THREAD_CPUTIME_ID", CLOCK_THREAD_CPUTIME_ID, 0, 0},
28 {"CLOCK_MONOTONIC_RAW", CLOCK_MONOTONIC_RAW, 0, 0,},
29 {"CLOCK_REALTIME_COARSE", CLOCK_REALTIME_COARSE, 0, 0,},
30 {"CLOCK_MONOTONIC_COARSE", CLOCK_MONOTONIC_COARSE, 0, 0,},
31 {"CLOCK_BOOTTIME", CLOCK_BOOTTIME, 0, 0,},
32 {"CLOCK_REALTIME_ALARM", CLOCK_REALTIME_ALARM, 0, 0,},
33 {"CLOCK_BOOTTIME_ALARM", CLOCK_BOOTTIME_ALARM, 0, 0,},
34 {"-1", -1, -1, EINVAL},
35 };
36
37 static struct tst_ts *tspec, *nspec = NULL;
38
39 static struct test_variants {
40 int (*func)(clockid_t clk_id, void *ts);
41 enum tst_ts_type type;
42 struct tst_ts **spec;
43 char *desc;
44 } variants[] = {
45 { .func = libc_clock_getres, .type = TST_LIBC_TIMESPEC, .spec = &tspec, .desc = "vDSO or syscall with libc spec"},
46 { .func = libc_clock_getres, .type = TST_LIBC_TIMESPEC, .spec = &nspec, .desc = "vDSO or syscall with libc spec with NULL res"},
47
48 #if (__NR_clock_getres != __LTP__NR_INVALID_SYSCALL)
49 { .func = sys_clock_getres, .type = TST_KERN_OLD_TIMESPEC, .spec = &tspec, .desc = "syscall with old kernel spec"},
50 { .func = sys_clock_getres, .type = TST_KERN_OLD_TIMESPEC, .spec = &nspec, .desc = "syscall with old kernel spec with NULL res"},
51 #endif
52
53 #if (__NR_clock_getres_time64 != __LTP__NR_INVALID_SYSCALL)
54 { .func = sys_clock_getres64, .type = TST_KERN_TIMESPEC, .spec = &tspec, .desc = "syscall time64 with kernel spec"},
55 { .func = sys_clock_getres64, .type = TST_KERN_TIMESPEC, .spec = &nspec, .desc = "syscall time64 with kernel spec with NULL res"},
56 #endif
57 };
58
setup(void)59 static void setup(void)
60 {
61 tspec->type = variants[tst_variant].type;
62 tst_res(TINFO, "Testing variant: %s", variants[tst_variant].desc);
63 }
64
do_test(unsigned int i)65 static void do_test(unsigned int i)
66 {
67 struct test_variants *tv = &variants[tst_variant];
68
69 TEST(tv->func(tcase[i].clk_id, tst_ts_get(*tv->spec)));
70
71 if (TST_RET != tcase[i].ret) {
72 if (TST_ERR == EINVAL) {
73 tst_res(TCONF, "clock_getres(%s, ...) NO SUPPORTED", tcase[i].name);
74 return;
75 }
76
77 tst_res(TFAIL | TTERRNO, "clock_getres(%s, ...) failed", tcase[i].name);
78 return;
79 }
80
81 if (TST_ERR != tcase[i].err) {
82 tst_res(TFAIL,
83 "clock_getres(%s, ...) failed unexpectedly: %s, expected: %s",
84 tcase[i].name, tst_strerrno(TST_ERR), tst_strerrno(tcase[i].err));
85 return;
86 }
87
88 tst_res(TPASS, "clock_getres(%s, ...) succeeded", tcase[i].name);
89 }
90
91 static struct tst_test test = {
92 .test = do_test,
93 .tcnt = ARRAY_SIZE(tcase),
94 .test_variants = ARRAY_SIZE(variants),
95 .setup = setup,
96 .bufs = (struct tst_buffers []) {
97 {&tspec, .size = sizeof(*tspec)},
98 {},
99 }
100 };
101