1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * The 'exception' command can be used for testing exception handling.
4 *
5 * Copyright (c) 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
6 */
7
8#include <command.h>
9
10static int do_sigsegv(struct cmd_tbl *cmdtp, int flag, int argc,
11		      char *const argv[])
12{
13	u8 *ptr = NULL;
14
15	*ptr = 0;
16	return CMD_RET_FAILURE;
17}
18
19static int do_undefined(struct cmd_tbl *cmdtp, int flag, int argc,
20			char *const argv[])
21{
22	asm volatile (".word 0xffff\n");
23	return CMD_RET_FAILURE;
24}
25
26static struct cmd_tbl cmd_sub[] = {
27	U_BOOT_CMD_MKENT(sigsegv, CONFIG_SYS_MAXARGS, 1, do_sigsegv,
28			 "", ""),
29	U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined,
30			 "", ""),
31};
32
33U_BOOT_LONGHELP(exception,
34	"<ex>\n"
35	"  The following exceptions are available:\n"
36	"  undefined  - undefined instruction\n"
37	"  sigsegv    - illegal memory access\n");
38
39#include <exception.h>
40