Re: [PATCH 18/31] Add debugger entry points for C6X

From: Mark Salter
Date: Thu Feb 11 2016 - 17:53:01 EST


On Thu, 2016-01-28 at 12:47 -0700, Jeffrey Merkey wrote:
> This patch series adds an export which can be set by system debuggers to
> direct the hard lockup and soft lockup detector to trigger a breakpoint
> exception and enter a debugger if one is active.ÂÂIt is assumed that if
> someone sets this variable, then an breakpoint handler of some sort will
> be actively loaded or registered via the notify die handler chain.
>
> This addition is extremely useful for debugging hard and soft lockups
> real time and quickly from a console debugger.
>
> Signed-off-by: Jeffrey Merkey <jeffmerkey@xxxxxxxxx>
> ---

Acked-by: Mark Salter <msalter@xxxxxxxxxx>

> Âarch/c6x/include/asm/kdebug.h | 4 ++++
> Â1 file changed, 4 insertions(+)
> Âcreate mode 100644 arch/c6x/include/asm/kdebug.h
>
> diff --git a/arch/c6x/include/asm/kdebug.h b/arch/c6x/include/asm/kdebug.h
> new file mode 100644
> index 0000000..5d09de1
> --- /dev/null
> +++ b/arch/c6x/include/asm/kdebug.h
> @@ -0,0 +1,4 @@
> +
> +static inline void arch_breakpoint(void)
> +{
> +}