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Diffstat (limited to 'cmd/sandbox/exception.c')
| -rw-r--r-- | cmd/sandbox/exception.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/cmd/sandbox/exception.c b/cmd/sandbox/exception.c new file mode 100644 index 0000000000..1aa1d673ae --- /dev/null +++ b/cmd/sandbox/exception.c @@ -0,0 +1,41 @@ +// 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> |