[PATCH] Debug: add Kconfig option to abort autoboot

[Jonas Rebmann]

Hi Sascha,

On 2026-02-23 16:39, Sascha Hauer wrote:
> For debugging purposes it's sometimes useful when barebox doesn't boot
> through, but stops at the prompt.

Isn't this already compile-time configurable by setting the defaultenv
autoboot to "abort"?

Regards,
Jonas

> This allows for automated debugging
> without having to catch the autoboot timeout first. This normally works
> thanks to labgrid, but at the cost that messages are eaten up by the
> barebox strategy.
> 
> This adds a Kconfig option to just stop at the prompt.
> 
> Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
> ---
>   common/Kconfig.debug | 6 ++++++
>   common/startup.c     | 4 +++-
>   2 files changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/common/Kconfig.debug b/common/Kconfig.debug
> index b307b84202..13a686d0ad 100644
> --- a/common/Kconfig.debug
> +++ b/common/Kconfig.debug
> @@ -56,6 +56,12 @@ config DEBUG_INITCALLS
>   	help
>   	  If enabled this will print initcall traces.
>   
> +config DEBUG_AUTOBOOT_ABORT
> +	bool "Abort autoboot"
> +	help
> +	  If enabled barebox will not automatically boot but start a shell
> +	  instead.
> +
>   config DEBUG_PBL
>   	bool "Print PBL debugging information"
>   	depends on PBL_CONSOLE
> diff --git a/common/startup.c b/common/startup.c
> index 055d94fe6a..7551813a50 100644
> --- a/common/startup.c
> +++ b/common/startup.c
> @@ -189,7 +189,9 @@ void set_autoboot_state(enum autoboot_state autoboot)
>    */
>   enum autoboot_state do_autoboot_countdown(void)
>   {
> -	static enum autoboot_state autoboot_state = AUTOBOOT_UNKNOWN;
> +	static enum autoboot_state autoboot_state =
> +		IS_ENABLED(CONFIG_DEBUG_AUTOBOOT_ABORT) ?
> +			AUTOBOOT_ABORT : AUTOBOOT_UNKNOWN;
>   	unsigned flags = CONSOLE_COUNTDOWN_EXTERN;
>   	int ret;
>   	struct stat s;

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