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 90 sync_api_supported(); 91 92 ksft_print_msg("[RUN]\tTesting sync framework\n"); 93 94 RUN_TEST(test_alloc_timeline); 95 RUN_TEST(test_alloc_fence); 96 RUN_TEST(test_alloc_fence_negative); 97 98 RUN_TEST(test_fence_one_timeline_wait); 99 RUN_TEST(test_fence_one_timeline_merge); 100 RUN_TEST(test_fence_merge_same_fence); 101 RUN_TEST(test_fence_multi_timeline_wait); 102 RUN_TEST(test_stress_two_threads_shared_timeline); 103 RUN_TEST(test_consumer_stress_multi_producer_single_consumer); 104 RUN_TEST(test_merge_stress_random_merge); 105 106 err = ksft_get_fail_cnt(); 107 if (err) 108 ksft_exit_fail_msg("%d out of %d sync tests failed\n", 109 err, ksft_test_num()); 110 111 /* need this return to keep gcc happy */ 112 return ksft_exit_pass(); 113 } 114