[PATCH v3 2/3] add CONFIG_PBL_BREAK option

Sascha Hauer s.hauer at pengutronix.de
Tue Jun 11 01:20:42 PDT 2019


On Fri, Jun 07, 2019 at 09:06:59AM +0200, Rouven Czerwinski wrote:
> From: Oleksij Rempel <linux at rempel-privat.de>
> 
> With this option barebox will be build with breakpoint instruction
> in early pbl stage and on main barebox entry. Otherwise two nop
> instructions are generated which allow binary patching of existing
> barebox binaries.
> In case production barebox images should be debugged, the corresponding
> ELF binaries need to be kept to allow later JTAG debugging.
> This option only works with an attached JTAG debugger, the board will
> hang otherwise.
> 
>  
> +
> +config PBL_BREAK
> +	bool "Execute software break on pbl start"
> +	help
> +	  If this enabled, barebox will be compiled with BKPT instruction
> +	  during early pbl init and entry of the main barebox.
> +	  This option can only be used with a JTAG debugger,
> +	  the board hangs otherwise.

This option is presented to everyone but implemented only on ARM.

Sascha

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