From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 31066 invoked by alias); 27 Feb 2014 06:04:20 -0000 Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org Received: (qmail 31055 invoked by uid 89); 27 Feb 2014 06:04:19 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.9 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail7.hitachi.co.jp Received: from mail7.hitachi.co.jp (HELO mail7.hitachi.co.jp) (133.145.228.42) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 27 Feb 2014 06:04:17 +0000 Received: from mlsv5.hitachi.co.jp (unknown [133.144.234.166]) by mail7.hitachi.co.jp (Postfix) with ESMTP id 849CA37AC4; Thu, 27 Feb 2014 15:04:15 +0900 (JST) Received: from mfilter05.hitachi.co.jp by mlsv5.hitachi.co.jp (8.13.1/8.13.1) id s1R64Fie018435; Thu, 27 Feb 2014 15:04:15 +0900 Received: from vshuts02.hitachi.co.jp (vshuts02.hitachi.co.jp [10.201.6.84]) by mfilter05.hitachi.co.jp (Switch-3.3.4/Switch-3.3.4) with ESMTP id s1R64ENK008625; Thu, 27 Feb 2014 15:04:14 +0900 Received: from gxml20a.ad.clb.hitachi.co.jp (unknown [158.213.157.160]) by vshuts02.hitachi.co.jp (Postfix) with ESMTP id E655E490052; Thu, 27 Feb 2014 15:04:13 +0900 (JST) Received: from [10.198.219.44] by gxml20a.ad.clb.hitachi.co.jp (Switch-3.1.10/Switch-3.1.9) id 61R604DS4000112D0; Thu, 27 Feb 2014 15:04:13 +0900 Message-ID: <530ED559.7060103@hitachi.com> Date: Thu, 27 Feb 2014 06:04:00 -0000 From: Masami Hiramatsu User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: Sandeepa Prabhu Cc: systemtap@sourceware.org, William Cohen , Petr Machata , Mark Wielaard , Deepak Saxena , Arnd Bergmann , "sandeepa.prabhu@linux.com" Subject: Re: arm64 kprobes patches References: <530E9F9F.1060703@hitachi.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes X-SW-Source: 2014-q1/txt/msg00164.txt.bz2 (2014/02/27 13:56), Sandeepa Prabhu wrote: > On 27 February 2014 07:44, Masami Hiramatsu > wrote: >> (2014/02/27 0:02), Sandeepa Prabhu wrote: >>> Hi all, >>> >>> We have uploaded arm64 kprobes latest changes on linaro git which >>> include some fixes for recursive kprobes. These are rebased on top of >>> 3.14-rc3. Kprobes support can be enabled by enabling >>> "General setup ---> [*] Kprobes" config option. >>> >>> Git location: git://git.linaro.org/people/sandeepa.prabhu/linux-aarch64.git >>> Branch: arm64_kprobes_3.14-rc3 >> >> Great! Thank you for working on that! >> >>> >>> Please let us know if you are interested in pulling this branch for >>> systemtap test-suite verification, while we are trying to include >>> systemtap test-suite on our linaro open-embedded platforms. >>> >>> Also, please let us know if there are documentation on howto run full >>> test-suite for systemtap and various criteria kprobes should meet? >> >> One possible testing is putting kprobes on all functions in the >> kernel by using ftrace interface. (On x86, current kprobes still has >> some problems, and I solved, will send the series later) > OK we will try to verify this with arm64 ftrace patches (from linaro) > which are close to get accepted upstream. > Has your earlier patches (kprobes blacklist related) been queued-up > for upstream? Yes, I updated and will post the series soon. :) > Are you planning generic kprobes API changes ? No, actually generic API is still same. But internal API will be added. Thank you, -- Masami HIRAMATSU IT Management Research Dept. Linux Technology Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com