From patchwork Mon Jun 29 23:05:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Heiko_St=C3=BCbner?= X-Patchwork-Id: 243105 List-Id: U-Boot discussion From: heiko at sntech.de (Heiko Stuebner) Date: Tue, 30 Jun 2020 01:05:45 +0200 Subject: [PATCH v2] cmd: add a panic command Message-ID: <20200629230545.2635661-1-heiko@sntech.de> From: Heiko Stuebner 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 U-Boot and can take an optional message. Signed-off-by: Heiko Stuebner Reviewed-by: Simon Glass Reviewed-by: Tom Rini --- changes in v2: - add blank line before return (Simon) - fix U-Boot spelling (Simon) cmd/Makefile | 1 + cmd/panic.c | 23 +++++++++++++++++++++++ 2 files changed, 24 insertions(+) create mode 100644 cmd/panic.c 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..329231fb66 --- /dev/null +++ b/cmd/panic.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2020 Theobroma Systems Design und Consulting GmbH + */ + +#include +#include + +static int do_panic(cmd_tbl_t *cmdtp, int flag, int argc, + char * const argv[]) +{ + char *text = (argc < 2) ? "" : argv[1]; + + panic(text); + + return CMD_RET_SUCCESS; +} + +U_BOOT_CMD( + panic, 2, 1, do_panic, + "Panic with optional message", + "[message]" +);