173   int status, pid, pending_sig, optind = 1, state = 1;  in main()  local
187     while (argv[optind][0] == '-')  in main()
189 	if (strcmp (argv[optind], "-v") == 0)  in main()
190 	  ++optind, verbose = 1;  in main()
191 	else if (strcmp (argv[optind], "-i") == 0)  in main()
192 	  ++optind, trace_mode = INSTRUCTION;	/* backtrace at each insn */  in main()
193 	else if (strcmp (argv[optind], "-s") == 0)  in main()
194 	  ++optind, trace_mode = SYSCALL;	/* backtrace at each syscall */  in main()
195 	else if (strcmp (argv[optind], "-t") == 0)  in main()
198 	  ++optind, trace_mode = TRIGGER;  in main()
199 	else if (strcmp (argv[optind], "-c") == 0)  in main()
201 	  ++optind, unw_set_caching_policy (as, UNW_CACHE_GLOBAL);  in main()
202 	else if (strcmp (argv[optind], "-n") == 0)  in main()
204 	  ++optind, print_names = 0;  in main()
206 	  fprintf(stderr, "unrecognized option: %s\n", argv[optind++]);  in main()
207         if (optind >= argc)  in main()
227       if ((argc > 1) && (optind == argc)) {  in main()
231       execve (argv[optind], argv + optind, environ);  in main()