Merge tag 'u-boot-rockchip-20190729' of https://gitlab.denx.de/u-boot/custodians...
[platform/kernel/u-boot.git] / 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 );