Re: [PATCH 4/6] hw-breakpoints: Rewrite the hw-breakpoints layer on top of perf events

[Paul Mackerras]

Frederic Weisbecker writes:

> @@ -207,6 +212,15 @@ struct perf_event_attr {
>  		__u32		wakeup_events;	  /* wakeup every n events */
>  		__u32		wakeup_watermark; /* bytes before wakeup   */
>  	};
> +
> +	union {
> +		struct { /* Hardware breakpoint info */
> +			__u64		bp_addr;
> +			__u32		bp_type;
> +			__u32		bp_len;
> +		};
> +	};

I'm wondering why you don't use attr.config for anything with
breakpoint events?

Paul.
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