+int parse_options(int argc, char** argv, st_state_t *st) {
+ static struct option long_options[] = {
+ {"help", no_argument, NULL, 'h'},
+ {"verbose", optional_argument, NULL, 'v'},
+ {"device", required_argument, NULL, 'd'},
+ {"stlink_version", required_argument, NULL, 's'},
+ {"stlinkv1", no_argument, NULL, '1'},
+ {"listen_port", required_argument, NULL, 'p'},
+ {0, 0, 0, 0},
+ };
+ const char * help_str = "%s - usage:\n\n"
+ " -h, --help\t\tPrint this help\n"
+ " -vXX, --verbose=XX\tspecify a specific verbosity level (0..99)\n"
+ " -v, --verbose\tspecify generally verbose logging\n"
+ " -d <device>, --device=/dev/stlink2_1\n"
+ "\t\t\tWhere is your stlink device connected?\n"
+ " -s X, --stlink_version=X\n"
+ "\t\t\tChoose what version of stlink to use, (defaults to 2)\n"
+ " -1, --stlinkv1\tForce stlink version 1\n"
+ " -p 4242, --listen_port=1234\n"
+ "\t\t\tSet the gdb server listen port. "
+ "(default port: " STRINGIFY(DEFAULT_GDB_LISTEN_PORT) ")\n"
+ ;
+
+
+ int option_index = 0;
+ int c;
+ int q;
+ while ((c = getopt_long(argc, argv, "hv::d:s:1p:", long_options, &option_index)) != -1) {
+ switch (c) {
+ case 0:
+ printf("XXXXX Shouldn't really normally come here, only if there's no corresponding option\n");
+ printf("option %s", long_options[option_index].name);
+ if (optarg) {
+ printf(" with arg %s", optarg);
+ }
+ printf("\n");
+ break;
+ case 'h':
+ printf(help_str, argv[0]);
+ exit(EXIT_SUCCESS);
+ break;
+ case 'v':
+ if (optarg) {
+ st->logging_level = atoi(optarg);
+ } else {
+ st->logging_level = DEFAULT_LOGGING_LEVEL;
+ }
+ break;
+ case 'd':
+ if (strlen(optarg) > sizeof (st->devicename)) {
+ fprintf(stderr, "device name too long: %ld\n", strlen(optarg));
+ } else {
+ strcpy(st->devicename, optarg);
+ }
+ break;
+ case '1':
+ st->stlink_version = 1;
+ break;
+ case 's':
+ sscanf(optarg, "%i", &q);
+ if (q < 0 || q > 2) {
+ fprintf(stderr, "stlink version %d unknown!\n", q);
+ exit(EXIT_FAILURE);
+ }
+ st->stlink_version = q;
+ break;
+ case 'p':
+ sscanf(optarg, "%i", &q);
+ if (q < 0) {
+ fprintf(stderr, "Can't use a negative port to listen on: %d\n", q);
+ exit(EXIT_FAILURE);
+ }
+ st->listen_port = q;
+ break;
+ }
+ }
+
+ if (optind < argc) {
+ printf("non-option ARGV-elements: ");
+ while (optind < argc)
+ printf("%s ", argv[optind++]);
+ printf("\n");
+ }
+ return 0;
+}