75 	int fd, efd, err, id;  in load_and_attach()  local
141 		efd = bpf_raw_tracepoint_open(event + 15, fd);  in load_and_attach()
142 		if (efd < 0) {  in load_and_attach()
146 		event_fd[prog_cnt - 1] = efd;  in load_and_attach()
209 	efd = open(buf, O_RDONLY, 0);  in load_and_attach()
210 	if (efd < 0) {  in load_and_attach()
215 	err = read(efd, buf, sizeof(buf));  in load_and_attach()
221 	close(efd);  in load_and_attach()
227 	efd = sys_perf_event_open(&attr, -1/*pid*/, 0/*cpu*/, -1/*group_fd*/, 0);  in load_and_attach()
228 	if (efd < 0) {  in load_and_attach()
229 		printf("event %d fd %d err %s\n", id, efd, strerror(errno));  in load_and_attach()
232 	event_fd[prog_cnt - 1] = efd;  in load_and_attach()
233 	err = ioctl(efd, PERF_EVENT_IOC_ENABLE, 0);  in load_and_attach()
239 	err = ioctl(efd, PERF_EVENT_IOC_SET_BPF, fd);  in load_and_attach()