92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
/* CT13.c COPYRIGHT FUJITSU LIMITED 2019 */
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#define _GNU_SOURCE
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <pthread.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/syscall.h> /* For SYS_xxx definitions */
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#include <linux/futex.h>
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#include <sys/time.h>
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#include "uti.h"
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int passed = 0, sem = 0;
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pthread_t thr;
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void *util_thread(void *arg)
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{
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int rc;
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rc = syscall(__NR_get_system);
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if (rc == -1) {
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fprintf(stderr,
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"CT13100 running on Linux CPU OK\n");
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}
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else {
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fprintf(stderr,
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"CT13100 running on Linux CPU NG (%d)\n",
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rc);
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}
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while (!passed) {
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cpu_pause();
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}
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/* debug messages via serial takes 0.05 sec */
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usleep(100000);
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rc = syscall(__NR_futex, &sem,
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FUTEX_WAKE, 1, NULL, NULL, 0);
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if (rc != 1) {
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fprintf(stderr,
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"CT13101 FUTEX_WAKE NG (%d,%s)\n",
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rc, strerror(errno));
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}
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else {
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fprintf(stderr, "CT13101 FUTEX_WAKE OK\n");
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}
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return NULL;
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}
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int main(int argc, char **argv)
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{
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int rc;
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fprintf(stderr, "CT13001 futex START\n");
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rc = syscall(__NR_util_indicate_clone,
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SPAWN_TO_REMOTE, NULL);
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if (rc) {
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fprintf(stderr,
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"util_indicate_clone rc=%d, errno=%d\n",
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rc, errno);
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fflush(stderr);
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}
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rc = pthread_create(&thr, NULL, util_thread, NULL);
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if (rc) {
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fprintf(stderr, "pthread_create: %d\n", rc);
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exit(1);
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}
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fprintf(stderr, "CT13002 pthread_create OK\n");
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passed = 1;
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rc = syscall(__NR_futex, &sem,
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FUTEX_WAIT, 0, NULL, NULL, 0);
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if (rc != 0) {
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fprintf(stderr,
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"CT13003 FUTEX_WAIT NG (%s)\n",
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strerror(errno));
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}
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else {
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fprintf(stderr, "CT13003 FUTEX_WAIT OK\n");
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}
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pthread_join(thr, NULL);
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fprintf(stderr, "CT13004 pthread_join OK\n");
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fprintf(stderr, "CT13005 END\n");
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exit(0);
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}
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