Re: [RFC][PATCH 07/11] perf: Provide PERF_SAMPLE_REGS

[Peter Zijlstra]

On Wed, 2010-03-03 at 09:30 -0800, Stephane Eranian wrote:
> This assumes struct pt_regs is somehow exported to userland.
> Is that the case?

I seems to have understood they were, and asm/ptrace.h seems to agree
with that, it has !__KERNEL__ definitions for struct pt_regs.

> I would clearly spell out that the REGS are the interrupted REGS,
> not the overflow REGS. Maybe PERF_SAMPLE_IREGS. 

They can be both, for PEBS they are the overflow trap (until PEBS does
fault) regs.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/