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[Bug testsuite/10231] Systemtap variable references fail on custom kernels built on RHEL 5.3 on ppc64
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sources dot redhat dot com
- Date: 17 Jun 2009 10:43:52 -0000
- Subject: [Bug testsuite/10231] Systemtap variable references fail on custom kernels built on RHEL 5.3 on ppc64
- References: <20090603083354.10231.prerna@linux.vnet.ibm.com>
- Reply-to: sourceware-bugzilla at sourceware dot org
------- Additional Comments From fche at redhat dot com 2009-06-17 10:43 -------
(In reply to comment #14)
> Some more info: The gcc problem with debug location lists for function
> parameters not starting at the beginning of the function is triggered by
> -mno-sched-epilog. -mno-sched-epilog stops function prologue scheduling as well.
In this case, it may be worth trying to use "stap -P", to activate the
heuristic prologue-end searching code for probe placement.
--
http://sourceware.org/bugzilla/show_bug.cgi?id=10231
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