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From: Masami Hiramatsu <mhiramat@redhat.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	Ananth N Mavinakayanahalli <ananth@in.ibm.com>,
	lkml <linux-kernel@vger.kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Jim Keniston <jkenisto@us.ibm.com>,
	Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
	Christoph Hellwig <hch@infradead.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Anders Kaseorg <andersk@ksplice.com>,
	Tim Abbott <tabbott@ksplice.com>,
	systemtap <systemtap@sources.redhat.com>,
	DLE <dle-develop@lists.sourceforge.net>
Subject: Re: [RFC][ PATCH -tip v2 0/7] kprobes: Kprobes jump optimization support
Date: Tue, 23 Jun 2009 16:48:29 -0400	[thread overview]
Message-ID: <4A413F9D.1080303@redhat.com> (raw)
In-Reply-To: <20090623203738.GG6760@one.firstfloor.org>

Andi Kleen wrote:
> 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

Thanks,

> 
>> 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.

Sure, in that case, I have two options;
- Disable above option by kconfig.
- Black-listing the target addresses, instead of functions.

Thank you,

> 
> -Andi
> 

-- 
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat@redhat.com


  reply	other threads:[~2009-06-23 20:46 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-22 21:22 [RFC][ PATCH -tip v2 0/7] kprobes: Kprobes jump optimization support Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 1/7] kprobes: use list instead of hlist for insn_pages Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 2/7] kprobes: introducing generic insn_slot framework Masami Hiramatsu
2009-06-27 20:09   ` Steven Rostedt
2009-06-29 21:09     ` Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 3/7] Kbuild: disable gcc crossjumping Masami Hiramatsu
2009-06-27 20:13   ` Steven Rostedt
2009-07-17 20:28     ` Sam Ravnborg
2009-07-17 21:13       ` Masami Hiramatsu
2009-07-17 21:15         ` Masami Hiramatsu
2009-07-17 21:19         ` Sam Ravnborg
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 4/7] kprobes: kprobes jump optimization core Masami Hiramatsu
2009-06-23 12:58   ` Srikar Dronamraju
2009-06-23 13:11     ` Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 5/7] kprobes: x86: cleanup save/restore registers Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 6/7] kprobes: x86: support kprobes jump optimization on x86 Masami Hiramatsu
2009-06-22 21:23 ` [RFC][ PATCH -tip v2 7/7] kprobes: add documents of jump optimization Masami Hiramatsu
2009-06-23 11:42 ` [RFC][ PATCH -tip v2 0/7] kprobes: Kprobes jump optimization support Ingo Molnar
2009-06-23 14:06   ` Masami Hiramatsu
2009-06-23 19:40     ` Ingo Molnar
2009-06-23 21:54       ` Masami Hiramatsu
2009-06-23 22:08         ` Masami Hiramatsu
2009-06-23 12:09 ` Andi Kleen
2009-06-23 13:50   ` Masami Hiramatsu
2009-06-23 16:34     ` Andi Kleen
2009-06-23 17:28       ` Masami Hiramatsu
2009-06-23 20:37         ` Andi Kleen
2009-06-23 20:48           ` Masami Hiramatsu [this message]
2009-06-26 23:20           ` Masami Hiramatsu

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