[J-u-boot.git] / cmd / arm / exception64.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * The 'exception' command can be used for testing exception handling.
 *
 * Copyright (c) 2018, Heinrich Schuchardt <[email protected]>
 */

#include <common.h>
#include <command.h>

static int do_undefined(struct cmd_tbl *cmdtp, int flag, int argc,
			char *const argv[])
{
	/*
	 * 0xe7f...f.	is undefined in ARM mode
	 * 0xde..	is undefined in Thumb mode
	 */
	asm volatile (".word 0xe7f7defb\n");
	return CMD_RET_FAILURE;
}

static struct cmd_tbl cmd_sub[] = {
	U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined,
			 "", ""),
};

static char exception_help_text[] =
	"<ex>\n"
	"  The following exceptions are available:\n"
	"  undefined  - undefined instruction\n"
	;

#include <exception.h>
Commit	Line	Data
dab8788a HS	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 <[email protected]>
	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10
09140113 SG	11	static int do_undefined(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	12	char *const argv[])
dab8788a HS	13	{
	14	/*
	15	* 0xe7f...f. is undefined in ARM mode
	16	* 0xde.. is undefined in Thumb mode
	17	*/
	18	asm volatile (".word 0xe7f7defb\n");
	19	return CMD_RET_FAILURE;
	20	}
	21
09140113	22	static struct cmd_tbl cmd_sub[] = {
dab8788a HS	23	U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined,
	24	"", ""),
	25	};
	26
	27	static char exception_help_text[] =
	28	"<ex>\n"
	29	" The following exceptions are available:\n"
	30	" undefined - undefined instruction\n"
	31	;
	32
	33	#include <exception.h>