11badac4fSMathieu Desnoyers // SPDX-License-Identifier: LGPL-2.1
21badac4fSMathieu Desnoyers /*
31badac4fSMathieu Desnoyers * Basic test coverage for critical regions and rseq_current_cpu().
41badac4fSMathieu Desnoyers */
51badac4fSMathieu Desnoyers
61badac4fSMathieu Desnoyers #define _GNU_SOURCE
71badac4fSMathieu Desnoyers #include <assert.h>
81badac4fSMathieu Desnoyers #include <sched.h>
91badac4fSMathieu Desnoyers #include <signal.h>
101badac4fSMathieu Desnoyers #include <stdio.h>
111badac4fSMathieu Desnoyers #include <string.h>
121badac4fSMathieu Desnoyers #include <sys/time.h>
131badac4fSMathieu Desnoyers
141badac4fSMathieu Desnoyers #include "rseq.h"
151badac4fSMathieu Desnoyers
test_cpu_pointer(void)161badac4fSMathieu Desnoyers void test_cpu_pointer(void)
171badac4fSMathieu Desnoyers {
181badac4fSMathieu Desnoyers cpu_set_t affinity, test_affinity;
191badac4fSMathieu Desnoyers int i;
201badac4fSMathieu Desnoyers
211badac4fSMathieu Desnoyers sched_getaffinity(0, sizeof(affinity), &affinity);
221badac4fSMathieu Desnoyers CPU_ZERO(&test_affinity);
231badac4fSMathieu Desnoyers for (i = 0; i < CPU_SETSIZE; i++) {
241badac4fSMathieu Desnoyers if (CPU_ISSET(i, &affinity)) {
25*99babd04SMathieu Desnoyers int node;
26*99babd04SMathieu Desnoyers
271badac4fSMathieu Desnoyers CPU_SET(i, &test_affinity);
281badac4fSMathieu Desnoyers sched_setaffinity(0, sizeof(test_affinity),
291badac4fSMathieu Desnoyers &test_affinity);
301badac4fSMathieu Desnoyers assert(sched_getcpu() == i);
311badac4fSMathieu Desnoyers assert(rseq_current_cpu() == i);
321badac4fSMathieu Desnoyers assert(rseq_current_cpu_raw() == i);
331badac4fSMathieu Desnoyers assert(rseq_cpu_start() == i);
34*99babd04SMathieu Desnoyers node = rseq_fallback_current_node();
35*99babd04SMathieu Desnoyers assert(rseq_current_node_id() == node);
361badac4fSMathieu Desnoyers CPU_CLR(i, &test_affinity);
371badac4fSMathieu Desnoyers }
381badac4fSMathieu Desnoyers }
391badac4fSMathieu Desnoyers sched_setaffinity(0, sizeof(affinity), &affinity);
401badac4fSMathieu Desnoyers }
411badac4fSMathieu Desnoyers
main(int argc,char ** argv)421badac4fSMathieu Desnoyers int main(int argc, char **argv)
431badac4fSMathieu Desnoyers {
441badac4fSMathieu Desnoyers if (rseq_register_current_thread()) {
451badac4fSMathieu Desnoyers fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
461badac4fSMathieu Desnoyers errno, strerror(errno));
471badac4fSMathieu Desnoyers goto init_thread_error;
481badac4fSMathieu Desnoyers }
491badac4fSMathieu Desnoyers printf("testing current cpu\n");
501badac4fSMathieu Desnoyers test_cpu_pointer();
511badac4fSMathieu Desnoyers if (rseq_unregister_current_thread()) {
521badac4fSMathieu Desnoyers fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
531badac4fSMathieu Desnoyers errno, strerror(errno));
541badac4fSMathieu Desnoyers goto init_thread_error;
551badac4fSMathieu Desnoyers }
561badac4fSMathieu Desnoyers return 0;
571badac4fSMathieu Desnoyers
581badac4fSMathieu Desnoyers init_thread_error:
591badac4fSMathieu Desnoyers return -1;
601badac4fSMathieu Desnoyers }
61