Re: [RFC/PATCH] Implement new PTRACE_EVENT_SYSCALL_{ENTER,EXIT}

[Oleg Nesterov]

On 01/07, Sergio Durigan Junior wrote:
>
> On Tuesday, January 07 2014, Oleg Nesterov wrote:
>
> > Finally. If we add this feature, we should probably also report
> > is_compat_task() somehow. Currently the debugger can't know if, say,
> > a 64bit tracee does int80.
>
> OK, I will look into it, have no idea how to do that.  Suggestions are
> welcome, of course.

Well, you can probably encode is_compat_task() in ->ptrace_message along
with syscall_get_nr(). But I am not sure about __X32_SYSCALL_BIT in
->orig_ax. Probably we should not clear it and report both bits.

Oleg.q

--
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/