Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754574Ab2HVInV (ORCPT ); Wed, 22 Aug 2012 04:43:21 -0400 Received: from mail7.hitachi.co.jp ([133.145.228.42]:40289 "EHLO mail7.hitachi.co.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753777Ab2HVInP (ORCPT ); Wed, 22 Aug 2012 04:43:15 -0400 X-AuditID: b753bd60-95762ba000007c38-75-50349ba1e61d X-AuditID: b753bd60-95762ba000007c38-75-50349ba1e61d From: Yoshihiro YUNOMAE Subject: [PATCH 1/5] trace-cmd: Use TRACE_DIR envrionment variable if defined To: Steven Rostedt Cc: Amit Shah , Anthony Liguori , Arnd Bergmann , Borislav Petkov , "Franch Ch. Eigler" , Frederic Weisbecker , Greg Kroah-Hartman , Herbert Xu , Ingo Molnar , Masami Hiramatsu , Mathieu Desnoyers , Rusty Russell , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, qemu-devel@nongnu.org, yrl.pp-manager.tt@hitachi.com, Masami Hiramatsu , Yoshihiro YUNOMAE Date: Wed, 22 Aug 2012 17:43:02 +0900 Message-ID: <20120822084301.17293.90649.stgit@ltc189.sdl.hitachi.co.jp> In-Reply-To: <20120822084251.17293.69086.stgit@ltc189.sdl.hitachi.co.jp> References: <20120822084251.17293.69086.stgit@ltc189.sdl.hitachi.co.jp> User-Agent: StGIT/0.14.3 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: AAAAAA== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1211 Lines: 40 From: Masami Hiramatsu Use TRACE_DIR environment variable for setting debugfs/tracing directory if defined. This is for controlling guest(or remote) ftrace. Signed-off-by: Masami Hiramatsu Signed-off-by: Yoshihiro YUNOMAE --- trace-util.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) diff --git a/trace-util.c b/trace-util.c index e128188..d5a3eb4 100644 --- a/trace-util.c +++ b/trace-util.c @@ -311,6 +311,15 @@ char *tracecmd_find_tracing_dir(void) char type[100]; FILE *fp; + tracing_dir = getenv("TRACE_DIR"); + if (tracing_dir) { + tracing_dir = strdup(tracing_dir); + if (!tracing_dir) + die("malloc"); + warning("Use environmental tracing directory: %s\n", tracing_dir); + return tracing_dir; + } + if ((fp = fopen("/proc/mounts","r")) == NULL) { warning("Can't open /proc/mounts for read"); return NULL; -- 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/