[PATCH] cmd: add a panic command

[Simon Glass]

On Fri, 26 Jun 2020 at 05:36, Heiko Stuebner <heiko at sntech.de> wrote:
>
> From: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
>
> Even in boot scripts it may be needed to "panic" when all options
> are exhausted and the device specification specifies hanging
> instead of resetting the board.
>
> So add a new panic command that just wraps around the core panic
> call in uboot and can take an optional message.

U-Boot

>
> Signed-off-by: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
> ---
>  cmd/Makefile |  1 +
>  cmd/panic.c  | 22 ++++++++++++++++++++++
>  2 files changed, 23 insertions(+)
>  create mode 100644 cmd/panic.c

Reviewed-by: Simon Glass <sjg at chromium.org>

nit below

>
> diff --git a/cmd/Makefile b/cmd/Makefile
> index ac843b4b16..027fa9083a 100644
> --- a/cmd/Makefile
> +++ b/cmd/Makefile
> @@ -8,6 +8,7 @@ ifndef CONFIG_SPL_BUILD
>  obj-y += boot.o
>  obj-$(CONFIG_CMD_BOOTM) += bootm.o
>  obj-y += help.o
> +obj-y += panic.o
>  obj-y += version.o
>
>  # command
> diff --git a/cmd/panic.c b/cmd/panic.c
> new file mode 100644
> index 0000000000..696b4c73a3
> --- /dev/null
> +++ b/cmd/panic.c
> @@ -0,0 +1,22 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (c) 2020 Theobroma Systems Design und Consulting GmbH
> + */
> +
> +#include <common.h>
> +#include <command.h>
> +
> +static int do_panic(cmd_tbl_t *cmdtp, int flag, int argc,
> +                   char * const argv[])
> +{
> +       char *text = (argc < 2) ? "" : argv[1];
> +
> +       panic(text);

blank line here


> +       return CMD_RET_SUCCESS;
> +}
> +
> +U_BOOT_CMD(
> +       panic,  2,      1,      do_panic,
> +       "Panic with optional message",
> +       "[message]"
> +);
> --
> 2.26.2
>