From: "Frank Ch. Eigler" <fche@redhat.com>
To: "Jose R. Santos" <jrs@us.ibm.com>
Cc: systemtap@sources.redhat.com
Subject: Re: static probes
Date: Fri, 31 Mar 2006 04:43:00 -0000 [thread overview]
Message-ID: <20060331044344.GN599@redhat.com> (raw)
In-Reply-To: <442CB0DD.9000602@us.ibm.com>
Hi -
jrs wrote:
> [...] Would it be possible for SystemTap to check for the
> availability of a static probe before reverting to kprobing a kernel
> function? [...]
That is, have systemtap substitute a function/statement() probe with a
mark() probe if one happens to be nearby? It may be possible, though
the mapping is not exact. For example, pt_regs* would not be
conveniently available in the latter case, so arbitrary $target
variables could be unavailable.
- FChE
prev parent reply other threads:[~2006-03-31 4:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-30 15:43 Frank Ch. Eigler
2006-03-31 4:29 ` Jose R. Santos
2006-03-31 4:43 ` Frank Ch. Eigler [this message]
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