115 static volatile sig_atomic_t	child_pid			= -1;  variable
605 			child_exited = waitpid(child_pid, &status, WNOHANG);  in dispatch_events()
684 	if (child_pid != -1)  in stat_handle_error()
685 		kill(child_pid, SIGTERM);  in stat_handle_error()
711 		child_pid = evsel_list->workload.pid;  in __run_perf_stat()
889 		if (child_pid != -1) {  in __run_perf_stat()
891 				kill(child_pid, SIGTERM);  in __run_perf_stat()
892 			wait4(child_pid, &status, 0, &stat_config.ru_data);  in __run_perf_stat()
988 	if ((child_pid == -1) || stat_config.interval)  in skip_signal()
998 	child_pid = -1;  in skip_signal()
1015 	if (child_pid != -1)  in sig_atexit()
1016 		kill(child_pid, SIGTERM);  in sig_atexit()