mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-10 15:14:43 +00:00
dab8788a8c
The 'exception' command allows to test exception handling. This implementation supports ARM, x86, RISC-V and the following exceptions: * 'breakpoint' - prefetch abort exception (ARM 32bit only) * 'unaligned' - data abort exception (ARM only) * 'undefined' - undefined instruction exception Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* The 'exception' command can be used for testing exception handling.
|
|
*
|
|
* Copyright (c) 2018, Heinrich Schuchardt <xypron.glpk@gmx.de>
|
|
*/
|
|
|
|
static int do_exception(cmd_tbl_t *cmdtp, int flag, int argc,
|
|
char * const argv[])
|
|
{
|
|
cmd_tbl_t *cp;
|
|
|
|
if (argc != 2)
|
|
return CMD_RET_USAGE;
|
|
|
|
/* drop sub-command parameter */
|
|
argc--;
|
|
argv++;
|
|
|
|
cp = find_cmd_tbl(argv[0], cmd_sub, ARRAY_SIZE(cmd_sub));
|
|
|
|
if (cp)
|
|
return cp->cmd(cmdtp, flag, argc, argv);
|
|
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
static int exception_complete(int argc, char * const argv[], char last_char,
|
|
int maxv, char *cmdv[])
|
|
{
|
|
int len = 0;
|
|
int i = 0;
|
|
cmd_tbl_t *cmdtp;
|
|
|
|
switch (argc) {
|
|
case 1:
|
|
break;
|
|
case 2:
|
|
len = strlen(argv[1]);
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
for (cmdtp = cmd_sub; cmdtp != cmd_sub + ARRAY_SIZE(cmd_sub); cmdtp++) {
|
|
if (i >= maxv - 1)
|
|
return i;
|
|
if (!strncmp(argv[1], cmdtp->name, len))
|
|
cmdv[i++] = cmdtp->name;
|
|
}
|
|
cmdv[i] = NULL;
|
|
return i;
|
|
}
|
|
|
|
U_BOOT_CMD_COMPLETE(
|
|
exception, 2, 0, do_exception,
|
|
"Forces an exception to occur",
|
|
exception_help_text, exception_complete
|
|
);
|