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From: "fche at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sources.redhat.com
Subject: [Bug translator/10174] Enable stap to map function addresses to function names
Date: Mon, 25 May 2009 16:24:00 -0000	[thread overview]
Message-ID: <20090525162429.17425.qmail@sourceware.org> (raw)
In-Reply-To: <20090520112758.10174.prerna@linux.vnet.ibm.com>


------- Additional Comments From fche at redhat dot com  2009-05-25 16:24 -------
> > Thanks Frank !! This construct doesnt seem to work in dwarfless scenario 
> 
> You need to add dwarf :)
> stap -d kernel (or stap -d module-name) will make the symbols available by
> reading them from the debuginfo.

Yeah, but that seems to defeat the purpose of dwarfless probing.
Maybe extend -d to accept a (presumed) kernel symbol table file

  -d /lib/modules/`uname -r`/build/System.map

And the kprobes.* logic can add this to session.unwindsyms.  For
that matter, it could read the file (like in jkenisto's older
symbol-table-based probing implementation) to verify placement
of kernel-side symbol probes.


-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10174

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  parent reply	other threads:[~2009-05-25 16:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-20 11:28 [Bug translator/10174] New: " prerna at linux dot vnet dot ibm dot com
2009-05-20 11:34 ` [Bug translator/10174] " fche at redhat dot com
2009-05-25  4:54 ` prerna at linux dot vnet dot ibm dot com
2009-05-25  7:25 ` mjw at redhat dot com
2009-05-25 16:24 ` fche at redhat dot com [this message]
2010-08-12 18:11 ` [Bug translator/10174] let stap -d take a symbol table file as argument, for dwarfless *symname() fche at redhat dot com

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