Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751966AbaKXCuP (ORCPT ); Sun, 23 Nov 2014 21:50:15 -0500 Received: from mail7.hitachi.co.jp ([133.145.228.42]:42622 "EHLO mail7.hitachi.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751345AbaKXCuN (ORCPT ); Sun, 23 Nov 2014 21:50:13 -0500 Message-ID: <54729CDE.5030700@hitachi.com> Date: Mon, 24 Nov 2014 11:50:06 +0900 From: Masami Hiramatsu Organization: Hitachi, Ltd., Japan User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1 MIME-Version: 1.0 To: Steven Rostedt Cc: Josh Poimboeuf , Ananth N Mavinakayanahalli , Jiri Kosina , Seth Jennings , Linux Kernel Mailing List , Petr Mladek , Vojtech Pavlik , Namhyung Kim , Miroslav Benes , Ingo Molnar Subject: Re: [PATCH ftrace/core v6 5/5] kselftest, ftrace: Add ftrace IPMODIFY flag test References: <20141121102502.11844.82696.stgit@localhost.localdomain> <20141121102537.11844.9781.stgit@localhost.localdomain> <20141121160329.575fd043@gandalf.local.home> In-Reply-To: <20141121160329.575fd043@gandalf.local.home> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org (2014/11/22 6:03), Steven Rostedt wrote: > On Fri, 21 Nov 2014 05:25:37 -0500 > Masami Hiramatsu wrote: > >> Add ftrace IPMODIFY flag test to selftest/ftrace. The >> test checks simple ftrace handler insertion and >> combinations of ftrace, kprobe, and jprobe. >> This test requires kernel build tree to build a test >> kernel module and root privilege to run. >> >> Signed-off-by: Masami Hiramatsu >> >> --- > > Can you make it so that make O=/path/to/build works? Hmm, I always use "O=builddir" option in my build script... > > I tried running this on my test box, which has /home/rostedt mounted > read only from my build box, and I get this: My case is just to keep the source tree clean, so source tree is still writable and builddir is under another directory in /home//. > [root@bxtest ftrace]# make O=/tmp > for TARGET in ipmodify; do \ > make -C $TARGET; \ > done; > make[1]: Entering directory `/work/git/linux-trace.git/tools/testing/selftests/ftrace/ipmodify' > make -C /lib/modules/3.18.0-rc1-test+/build M=/work/git/linux-trace.git/tools/testing/selftests/ftrace/ipmodify ipmodify.ko > make[2]: Entering directory `/home/rostedt/work/git/nobackup/bxtest/trace' > CC [M] /work/git/linux-trace.git/tools/testing/selftests/ftrace/ipmodify/ipmodify.o > /bin/sh: ./scripts/recordmcount: Permission denied Hmm, this error looks odd, not ENOENT but EPERM?? Could you run it again with V=1 ? Thank you, > make[5]: *** [/work/git/linux-trace.git/tools/testing/selftests/ftrace/ipmodify/ipmodify.o] Error 1 > make[4]: *** [ipmodify.ko] Error 2 > make[3]: *** [sub-make] Error 2 > make[2]: *** [__sub-make] Error 2 > make[2]: Leaving directory `/home/rostedt/work/git/nobackup/bxtest/trace' > make[1]: *** [ipmodify.ko] Error 2 > make[1]: Leaving directory `/work/git/linux-trace.git/tools/testing/selftests/ftrace/ipmodify' > make: *** [all] Error 2 > > -- Steve > -- Masami HIRAMATSU Software Platform Research Dept. Linux Technology Research Center Hitachi, Ltd., Yokohama Research Laboratory E-mail: masami.hiramatsu.pt@hitachi.com -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/