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Re: Questions about STP_TIMING

From: "Frank Ch. Eigler" <fche at redhat dot com>
To: "Stone, Joshua I" <joshua dot i dot stone at intel dot com>
Cc: systemtap at sources dot redhat dot com
Date: Thu, 25 Jan 2007 18:50:45 -0500
Subject: Re: Questions about STP_TIMING
References: <20070125233501.GF30933@redhat.com> <C56DB814FAA30B418C75310AC4BB279D013CEC33@scsmsx413.amr.corp.intel.com>

Hi -

> Ok... but those are int32_t values, so you're *already* masked at
> 32-bits.  The funky subtraction is redundant at that point.

Probably it's just a bug.  There's supposed to be a widening to
64-bits in there, in effect "(int64_t)(uint64_t)(int32_t)".

- FChE

References:
- Re: Questions about STP_TIMING
  - From: Frank Ch. Eigler
- RE: Questions about STP_TIMING
  - From: Stone, Joshua I

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