44 int main(int argc, char **argv)  in main()  argument
54     if (argc == 1) {  in main()
56     } else if ((argc == TWO_ARGS) && strcmp(argv[1], "start") == 0) {  in main()
58     } else if ((argc == THREE_ARGS) && strcmp(argv[1], "start") == 0) {  in main()
61     } else if ((argc == TWO_ARGS) && strcmp(argv[1], "stop") == 0) {  in main()
63     } else if ((argc == THREE_ARGS) && strcmp(argv[1], "read") == 0) {  in main()
76     } else if ((argc == TWO_ARGS) && strcmp(argv[1], "list") == 0) {  in main()
78     } else if ((argc >= THREE_ARGS) && strcmp(argv[1], "stat") == 0) {  in main()
79         PerfStat(fd, argc, argv);  in main()
80     } else if ((argc >= THREE_ARGS) && strcmp(argv[1], "record") == 0) {  in main()
81         PerfRecord(fd, argc, argv);  in main()