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Re: [RFC][ PATCH -tip v2 0/7] kprobes: Kprobes jump optimization support
- From: Andi Kleen <andi at firstfloor dot org>
- To: Masami Hiramatsu <mhiramat at redhat dot com>
- Cc: Andi Kleen <andi at firstfloor dot org>, Ingo Molnar <mingo at elte dot hu>, Ananth N Mavinakayanahalli <ananth at in dot ibm dot com>, lkml <linux-kernel at vger dot kernel dot org>, "H. Peter Anvin" <hpa at zytor dot com>, Frederic Weisbecker <fweisbec at gmail dot com>, Jim Keniston <jkenisto at us dot ibm dot com>, Srikar Dronamraju <srikar at linux dot vnet dot ibm dot com>, Christoph Hellwig <hch at infradead dot org>, Steven Rostedt <rostedt at goodmis dot org>, Anders Kaseorg <andersk at ksplice dot com>, Tim Abbott <tabbott at ksplice dot com>, systemtap <systemtap at sources dot redhat dot com>, DLE <dle-develop at lists dot sourceforge dot net>
- Date: Tue, 23 Jun 2009 22:37:38 +0200
- Subject: Re: [RFC][ PATCH -tip v2 0/7] kprobes: Kprobes jump optimization support
- References: <20090622212255.5384.53732.stgit@localhost.localdomain> <87vdmn179n.fsf@basil.nowhere.org> <4A40DDAD.6020202@redhat.com> <87bpoe29jo.fsf@basil.nowhere.org> <4A4110A3.2060808@redhat.com>
On Tue, Jun 23, 2009 at 01:28:03PM -0400, Masami Hiramatsu wrote:
> Hmm, would you know what is the actual name of that section and option?
-freorder-blocks-and-partition
.text.unlikely
> I think another possible solution is decoding those sections and
> black-listing the target functions when making vmlinux or loading
> modules.
Note that this can be pretty much all functions if you're unlucky.
-Andi
--
ak@linux.intel.com -- Speaking for myself only.