Re: [Qemu-devel] [PATCH, RFC] Sparc: convert some debug printf statements to tracepoints

[Blue Swirl]

On Sat, Oct 9, 2010 at 3:35 PM, Andreas Färber <address@hidden> wrote:
> Am 09.10.2010 um 17:10 schrieb Blue Swirl:
>
>> Replace some debug printf statements with tracepoints.
>>
>> Signed-off-by: Blue Swirl <address@hidden>
>> ---
>> I think tracing way is more flexible than current conditional code. I
>> remember wading through hundreds of megs of DPRINTF output looking for
>> a clue about a specific event, so being able to control the trace
>> dynamically is invaluable.
>
> While this may in theory be right, in practice the nop backend gives us
> nothing and the simple trace backend still has porting issues that need to
> be fixed.

Which issues, do you mean that Python isn't available for all platforms?

> I remember hacking around some time-related problems on Haiku (it was using
> an optional POSIX feature without check/wrapper), and there was a comment
> saying that similar changes need to be done for Win32 support too.
>
> Has anyone looked into a DTrace backend btw?

Is that more portable than the simple backend?