From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 126CEC3B1BF for ; Fri, 14 Feb 2020 23:56:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D467322314 for ; Fri, 14 Feb 2020 23:56:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581724586; bh=IB7d62IQq5RwmgoRniVB/fZVD/cmuaexuhC+RX0oeOM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eec2kBAwHOAWWlqlOCBpQXi4xCJF10nQeRa6ZbdVxN+/ObdYdAcA3H+kBqn9ClPr2 x2VUa7bk6FG5uTo0rd585Pk9DA4DQhISZf3CuoJHSaSkr77PrS1aHmwSwGc/uaDGU+ OXzUCbJ/EzNMY79cO3o7j+BRt7JYLpN4F5FaL9nY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728465AbgBNX40 (ORCPT ); Fri, 14 Feb 2020 18:56:26 -0500 Received: from mail.kernel.org ([198.145.29.99]:36180 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727649AbgBNX4Z (ORCPT ); Fri, 14 Feb 2020 18:56:25 -0500 Received: from paulmck-ThinkPad-P72.c.hoisthospitality.com (unknown [62.84.152.189]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B402A24649; Fri, 14 Feb 2020 23:56:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581724584; bh=IB7d62IQq5RwmgoRniVB/fZVD/cmuaexuhC+RX0oeOM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ndn0LLnTPJ31iZMPY9XqR1Izv8/2I+7cN+7BvHkjy2Z9pTwmnS0Zcbs+ZwL2PY1qE UCLeG/R8jc4KH7AWpp6qybVBmrLZrHh6HoQTiTF9v7Cemmx/ijLy7oidgrr2FdmqHU vrEJKntN8xiKbXcU0kBbPspupbwm4+i5cnswc3T8= From: paulmck@kernel.org To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, kernel-team@fb.com, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org, "Paul E. McKenney" Subject: [PATCH tip/core/rcu 04/30] rcu: Provide debug symbols and line numbers in KCSAN runs Date: Fri, 14 Feb 2020 15:55:41 -0800 Message-Id: <20200214235607.13749-4-paulmck@kernel.org> X-Mailer: git-send-email 2.9.5 In-Reply-To: <20200214235536.GA13364@paulmck-ThinkPad-P72> References: <20200214235536.GA13364@paulmck-ThinkPad-P72> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "Paul E. McKenney" This commit adds "-g -fno-omit-frame-pointer" to ease interpretation of KCSAN output, but only for CONFIG_KCSAN=y kerrnels. Signed-off-by: Paul E. McKenney --- kernel/rcu/Makefile | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile index 82d5fba..f91f2c2 100644 --- a/kernel/rcu/Makefile +++ b/kernel/rcu/Makefile @@ -3,6 +3,10 @@ # and is generally not a function of system call inputs. KCOV_INSTRUMENT := n +ifeq ($(CONFIG_KCSAN),y) +KBUILD_CFLAGS += -g -fno-omit-frame-pointer +endif + obj-y += update.o sync.o obj-$(CONFIG_TREE_SRCU) += srcutree.o obj-$(CONFIG_TINY_SRCU) += srcutiny.o -- 2.9.5