linux-kernel - Re: [RFC][ PATCH -tip v2 4/7] kprobes: kprobes jump optimization core

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4A40D499.6000805@redhat.com>
Date:	Tue, 23 Jun 2009 09:11:53 -0400
From:	Masami Hiramatsu <mhiramat@...hat.com>
To:	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>
CC:	Ingo Molnar <mingo@...e.hu>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>,
	lkml <linux-kernel@...r.kernel.org>,
	systemtap <systemtap@...rces.redhat.com>,
	DLE <dle-develop@...ts.sourceforge.net>,
	Jim Keniston <jkenisto@...ibm.com>,
	Christoph Hellwig <hch@...radead.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Anders Kaseorg <andersk@...lice.com>,
	Tim Abbott <tabbott@...lice.com>
Subject: Re: [RFC][ PATCH -tip v2 4/7] kprobes: kprobes jump optimization
 core

Srikar Dronamraju wrote:
>> +	/* .insn_size is initialized later */
>> +	.nr_garbage = 0,
>> +};
> 
>> +#if defined(CONFIG_OPTPROBES) && defined(__ARCH_WANT_KPROBES_INSN_SLOT)
>> +	/* Init kprobe_optinsn_slots */
>> +	kprobe_optinsn_slots.insn_size = MAX_OPTINSN_SIZE;
>> +#endif
>> +
> 
> What would be be the size of kprobe_optinsn_slots.insn_size if
> CONFIG_OPTPROBES is defined but __ARCH_WANT_KPROBES_INSN_SLOT is not
> defined? 

No problem. If __ARCH_WANT_KPROBES_INSN_SLOT is not defined,
kprobe_optinsn_slots doesn't exist.

Thank you,
> 
> -Srikar

-- 
Masami Hiramatsu

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

e-mail: mhiramat@...hat.com

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/