linux-kernel - Re: [PATCH 1/1] ftrace: adding other non-leaving .text sections

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: <20081126030446.GA14685@linux-sh.org>
Date:	Wed, 26 Nov 2008 12:04:46 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Steven Rostedt <rostedt@...dmis.org>
Cc:	Liming Wang <liming.wang@...driver.com>,
	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] ftrace: adding other non-leaving .text sections

On Tue, Nov 25, 2008 at 10:03:35PM -0500, Steven Rostedt wrote:
> 
> On Wed, 26 Nov 2008, Liming Wang wrote:
> 
> > Please review this patch, and I don't know whether new sections will conflict 
> > with sched tracer or others. 
> > This patch is against Steven tree's tip/devel latest commit.
> > 
> > Impact: improve recordmcount.pl
> > 
> > Besides .text section, there are three .text sections that won't
> > be freed after kernel booting. They are: .sched.text, .spinlock.text
> > and .kprobes.text, which contain functions we can trace. But the last
> > section ".kprobes.text" is particular, which has been marked as "notrace",
> > we ignore it. Thus we add other two sections.
> 
> Yep, only those sections that we know will not disappear are OK. I was
> conservative with only using ".text" but I knew there were other sections 
> that were OK, so I used the hash array to make it easy to add others.
> 
Does your .text cover .text.head by the way?
--
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/