1 /*
2 * sync test runner
3 * Copyright 2015-2016 Collabora Ltd.
4 *
5 * Based on the implementation from the Android Open Source Project,
6 *
7 * Copyright 2012 Google, Inc
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
26 */
27
28 #include <stdio.h>
29 #include <unistd.h>
30 #include <stdlib.h>
31 #include <sys/types.h>
32 #include <sys/stat.h>
33 #include <sys/wait.h>
34 #include <errno.h>
35 #include <string.h>
36
37 #include "../kselftest.h"
38 #include "synctest.h"
39
40 static int run_test(int (*test)(void), char *name)
41 {
42 int result;
43 pid_t childpid;
44 int ret;
45
46 fflush(stdout);
47 childpid = fork();
48
49 if (childpid) {
50 waitpid(childpid, &result, 0);
51 if (WIFEXITED(result)) {
52 ret = WEXITSTATUS(result);
53 if (!ret)
54 ksft_test_result_pass("[RUN]\t%s\n", name);
55 else
56 ksft_test_result_fail("[RUN]\t%s\n", name);
57 return ret;
58 }
59 return 1;
60 }
61
62 exit(test());
63 }
64
65 static void sync_api_supported(void)
66 {
67 struct stat sbuf;
68 int ret;
69
70 ret = stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
71 if (!ret)
72 return;
73
74 if (errno == ENOENT)
75 ksft_exit_skip("Sync framework not supported by kernel\n");
76
77 if (errno == EACCES)
78 ksft_exit_skip("Run Sync test as root.\n");
79
80 ksft_exit_fail_msg("stat failed on /sys/kernel/debug/sync/sw_sync: %s",
81 strerror(errno));
82 }
83
84 int main(void)
85 {
86 int err;
87
88 ksft_print_header();
89 ksft_set_plan(3 + 7);
90
91 sync_api_supported();
92
93 ksft_print_msg("[RUN]\tTesting sync framework\n");
94
95 RUN_TEST(test_alloc_timeline);
96 RUN_TEST(test_alloc_fence);
97 RUN_TEST(test_alloc_fence_negative);
98
99 RUN_TEST(test_fence_one_timeline_wait);
100 RUN_TEST(test_fence_one_timeline_merge);
101 RUN_TEST(test_fence_merge_same_fence);
102 RUN_TEST(test_fence_multi_timeline_wait);
103 RUN_TEST(test_stress_two_threads_shared_timeline);
104 RUN_TEST(test_consumer_stress_multi_producer_single_consumer);
105 RUN_TEST(test_merge_stress_random_merge);
106
107 err = ksft_get_fail_cnt();
108 if (err)
109 ksft_exit_fail_msg("%d out of %d sync tests failed\n",
110 err, ksft_test_num());
111
112 /* need this return to keep gcc happy */
113 return ksft_exit_pass();
114 }