ntdll/file.c: Allow to TRACE NtCreateFile return [repost]

[Michael Karcher]

[The original mail seemed to be stuck in the moderation queue or
got lost somewhere else. Reposting with correct "From:" this
time]

Am Mittwoch, den 27.08.2008, 17:14 +0900 schrieb Dmitry Timoshkov:
> "Markus Hitter" <mah at jump-ing.de> wrote:
> 
> > Providing the file handle allows to map
> > read/write requests to the corresponding file name.
> As pointed out by Alexander, you can use an appropriate debug
> channel for that, +relay or +server. There is no need to pollute
> the source with additional traces.

I am sorry, but I don't get your point. The handle is returned in an
out-pointer. There is no way to get that info into +relay. Alexandre
said:

| Module-specific traces like this one should try to print as
| little information as necessary to make sense of the trace
| In general a single trace at function entry is enough to understand
| the code flow.
I agree, but the handles returned *are* necessary to make sense of the
trace. Also, if I just want parameters at the function entry: This
information is provided by +relay. In the +file log, I don't care about
the address where the handle should be written to, yet it is logged by
our tracing conventions. It also doesn't help to understand code flow.
Now we are rejecting a patch that logs useful information instead, which
is vital to connect further file calls to the NtCreateCall, i.e.
understand the flow. I don't understand that.

| If you want details like the exact error codes you can use +relay or
| +server.
I agree too, but the details about exact error codes have been removed
from the patch.

Regards,
  Michael Karcher