include/exception.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * The 'exception' command can be used for testing exception handling.
   4  *
   5  * Copyright (c) 2018, Heinrich Schuchardt <xypron.glpk@gmx.de>
   6  */
   7
   8 static int do_exception(cmd_tbl_t *cmdtp, int flag, int argc,
   9                         char * const argv[])
  10 {
  11         cmd_tbl_t *cp;
  12
  13         if (argc != 2)
  14                 return CMD_RET_USAGE;
  15
  16         /* drop sub-command parameter */
  17         argc--;
  18         argv++;
  19
  20         cp = find_cmd_tbl(argv[0], cmd_sub, ARRAY_SIZE(cmd_sub));
  21
  22         if (cp)
  23                 return cp->cmd(cmdtp, flag, argc, argv);
  24
  25         return CMD_RET_USAGE;
  26 }
  27
  28 static int exception_complete(int argc, char * const argv[], char last_char,
  29                               int maxv, char *cmdv[])
  30 {
  31         int len = 0;
  32         int i = 0;
  33         cmd_tbl_t *cmdtp;
  34
  35         switch (argc) {
  36         case 1:
  37                 break;
  38         case 2:
  39                 len = strlen(argv[1]);
  40                 break;
  41         default:
  42                 return 0;
  43         }
  44         for (cmdtp = cmd_sub; cmdtp != cmd_sub + ARRAY_SIZE(cmd_sub); cmdtp++) {
  45                 if (i >= maxv - 1)
  46                         return i;
  47                 if (!strncmp(argv[1], cmdtp->name, len))
  48                         cmdv[i++] = cmdtp->name;
  49         }
  50         cmdv[i] = NULL;
  51         return i;
  52 }
  53
  54 U_BOOT_CMD_COMPLETE(
  55         exception, 2, 0, do_exception,
  56         "Forces an exception to occur",
  57         exception_help_text, exception_complete
  58 );