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Re: user kprobes vs debuggers
- From: Mathieu Lacage <Mathieu dot Lacage at sophia dot inria dot fr>
- To: Vara Prasad <prasadav at us dot ibm dot com>
- Cc: "Frank Ch. Eigler" <fche at redhat dot com>, systemtap at sources dot redhat dot com
- Date: Fri, 03 Feb 2006 09:00:35 +0100
- Subject: Re: user kprobes vs debuggers
- References: <20060202192231.GA29179@redhat.com> <43E2FA1E.5070901@us.ibm.com>
On Thu, 2006-02-02 at 22:37 -0800, Vara Prasad wrote:
> I think this mechanism should handle applications that have breakpoints
> builtin as well because i am thinking they are going to use ptrace
> interface as well to register the breakpoint, is that correct.
No, such applications (at least, mine) are going to insert int3 by hand
in the code (yes, I know, this is evil but it is possible).
If you are interested, it is some sort of profiler/tracer available from
there: http://www-sop.inria.fr/dream/personnel/Mathieu.Lacage/bozo-
profiler/
regards,
Mathieu
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