[PATCH 1/2] teach tracehook_report_syscall_exit() to handle stepping

[Oleg Nesterov]

I think this answers my questions in the previous email I sent.

On 11/09, Roland McGrath wrote:
>
> I wouldn't make the behavior conditional on the arch hook's definition.  I
> think a consistent change to a real SIGTRAP signal is better for any arch.
> Until each arch defines the hook, it can just get the default siginfo_t
> contents of 0-fill.

OK.

> This arch hook is purely for the single-step case.  For that the name
> "arch_fill_sigtrap_info" is too generic-sounding.  I'd make it fit in with
> the existing *_step stuff, e.g. "user_single_step_siginfo".

OK.

> I think for an arch_has_* #ifdef it is normal to make them uppercase.
> Anyway, those naming details can get upstream feedback when you post.

OK. ARCH_HAS_SINGLE_STEP_INFO ?

Oleg.