1 // SPDX-License-Identifier: LGPL-2.1
3 * Basic test coverage for critical regions and rseq_current_cpu().
16 void test_cpu_pointer(void)
18 cpu_set_t affinity, test_affinity;
21 sched_getaffinity(0, sizeof(affinity), &affinity);
22 CPU_ZERO(&test_affinity);
23 for (i = 0; i < CPU_SETSIZE; i++) {
24 if (CPU_ISSET(i, &affinity)) {
25 CPU_SET(i, &test_affinity);
26 sched_setaffinity(0, sizeof(test_affinity),
28 assert(sched_getcpu() == i);
29 assert(rseq_current_cpu() == i);
30 assert(rseq_current_cpu_raw() == i);
31 assert(rseq_cpu_start() == i);
32 CPU_CLR(i, &test_affinity);
35 sched_setaffinity(0, sizeof(affinity), &affinity);
38 int main(int argc, char **argv)
40 if (rseq_register_current_thread()) {
41 fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
42 errno, strerror(errno));
43 goto init_thread_error;
45 printf("testing current cpu\n");
47 if (rseq_unregister_current_thread()) {
48 fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
49 errno, strerror(errno));
50 goto init_thread_error;