mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
42 lines
929 B
C
42 lines
929 B
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* The 'exception' command can be used for testing exception handling.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <command.h>
|
||
|
|
|
||
|
|
static int do_sigsegv(struct cmd_tbl *cmdtp, int flag, int argc,
|
||
|
|
char *const argv[])
|
||
|
|
{
|
||
|
|
u8 *ptr = NULL;
|
||
|
|
|
||
|
|
*ptr = 0;
|
||
|
|
return CMD_RET_FAILURE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int do_undefined(struct cmd_tbl *cmdtp, int flag, int argc,
|
||
|
|
char *const argv[])
|
||
|
|
{
|
||
|
|
asm volatile (".word 0xffff\n");
|
||
|
|
return CMD_RET_FAILURE;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct cmd_tbl cmd_sub[] = {
|
||
|
|
U_BOOT_CMD_MKENT(sigsegv, CONFIG_SYS_MAXARGS, 1, do_sigsegv,
|
||
|
|
"", ""),
|
||
|
|
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"
|
||
|
|
" sigsegv - illegal memory access\n"
|
||
|
|
;
|
||
|
|
|
||
|
|
#include <exception.h>
|