20  *	/proc/${pid}/maps
21  *	/proc/${pid}/numa_maps
22  *	/proc/${pid}/smaps
23  *	/proc/${pid}/smaps_rollup
131 	pid_t pid;  in vsyscall()  local
134 	pid = fork();  in vsyscall()
135 	if (pid < 0) {  in vsyscall()
139 	if (pid == 0) {  in vsyscall()
163 	waitpid(pid, &wstatus, 0);  in vsyscall()
172 static int test_proc_pid_maps(pid_t pid)  in test_proc_pid_maps()  argument
175 	snprintf(buf, sizeof(buf), "/proc/%u/maps", pid);  in test_proc_pid_maps()
178 		perror("open /proc/${pid}/maps");  in test_proc_pid_maps()
194 static int test_proc_pid_numa_maps(pid_t pid)  in test_proc_pid_numa_maps()  argument
197 	snprintf(buf, sizeof(buf), "/proc/%u/numa_maps", pid);  in test_proc_pid_numa_maps()
202 			 * /proc/${pid}/numa_maps is under CONFIG_NUMA,  in test_proc_pid_numa_maps()
207 		perror("open /proc/${pid}/numa_maps");  in test_proc_pid_numa_maps()
217 static int test_proc_pid_smaps(pid_t pid)  in test_proc_pid_smaps()  argument
220 	snprintf(buf, sizeof(buf), "/proc/%u/smaps", pid);  in test_proc_pid_smaps()
225 			 * /proc/${pid}/smaps is under CONFIG_PROC_PAGE_MONITOR,  in test_proc_pid_smaps()
230 		perror("open /proc/${pid}/smaps");  in test_proc_pid_smaps()
272 static int test_proc_pid_smaps_rollup(pid_t pid)  in test_proc_pid_smaps_rollup()  argument
275 	snprintf(buf, sizeof(buf), "/proc/%u/smaps_rollup", pid);  in test_proc_pid_smaps_rollup()
280 			 * /proc/${pid}/smaps_rollup is under CONFIG_PROC_PAGE_MONITOR,  in test_proc_pid_smaps_rollup()
285 		perror("open /proc/${pid}/smaps_rollup");  in test_proc_pid_smaps_rollup()
319 	pid_t pid = fork();  in main()  local
320 	if (pid == -1) {  in main()
323 	} else if (pid == 0) {  in main()
361 			rv = test_proc_pid_maps(pid);  in main()
364 			rv = test_proc_pid_numa_maps(pid);  in main()
367 			rv = test_proc_pid_smaps(pid);  in main()
370 			rv = test_proc_pid_smaps_rollup(pid);  in main()
373 		 * TODO test /proc/${pid}/statm, task_statm()  in main()
380 		waitpid(pid, &wstatus, 0);  in main()