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Re: [RFC] [PATCH] Multiple kprobes at an address redux (take4)
- From: "Frank Ch. Eigler" <fche at redhat dot com>
- To: Prasanna S Panchamukhi <prasanna at in dot ibm dot com>
- Cc: amavin at redhat dot com, systemtap at sources dot redhat dot com
- Date: Mon, 18 Apr 2005 09:05:14 -0400
- Subject: Re: [RFC] [PATCH] Multiple kprobes at an address redux (take4)
- References: <20050418045757.GA11574@in.ibm.com>
Hi -
On Mon, Apr 18, 2005 at 10:27:57AM +0530, Prasanna S Panchamukhi wrote:
> [...]
> In your design document and in the code above shows that
> multiprobe feature is incompatable with jprobes.
> [...]
> but usually users are interested in both jprobe at the entrypoint (to dump
> arguments) and to dump return values using exit probe feature.
> [...]
For what it's worth, systemtap is unlikely to use jprobes at all in
the medium-long term, so removing this restriction is not one of our
priorities. (We will get at function arguments via the registers and
stack walking, the same way as we'll get at local variables and the
like.)
- FChE