linux-kernel - Re: [PATCH v2] tracing/uprobes: Support ftrace_event

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: <20130624185301.GA5350@redhat.com>
Date:	Mon, 24 Jun 2013 20:53:01 +0200
From:	Oleg Nesterov <oleg@...hat.com>
To:	"zhangwei(Jovi)" <jovi.zhangwei@...wei.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] tracing/uprobes: Support ftrace_event_file base
	multibuffer

forgot to mention,

On 06/24, Oleg Nesterov wrote:
>
> > +	/*
> > +	 * Currently TP_FLAG_TRACE/TP_FLAG_PROFILE are mutually exclusive
> > +	 * for uprobe(filter argument issue), this need to fix in future.
                      ^^^^^^^^^^^^^^^^^^^^^

Just in case, this is not that simple.

For example, suppose that TRACE_REG_REGISTER comes after
TRACE_REG_PERF_REGISTER. In this case we need uprobe_perf_open-like
code to establish nr_systemwide != 0 and do uprobe_apply() if
necessary.

Oleg.

--
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/