From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: [RFC/PATCH 2/3] recordmcount: Record locations of __aeabi_{u}idiv() calls on ARM Date: Mon, 23 Nov 2015 17:04:42 -0800 Message-ID: <20151124010442.GP19156@codeaurora.org> References: <1448068997-26631-1-git-send-email-sboyd@codeaurora.org> <1448068997-26631-3-git-send-email-sboyd@codeaurora.org> <20151121101349.GI8644@n2100.arm.linux.org.uk> <20151123205335.GD19156@codeaurora.org> <20151123210347.GW8644@n2100.arm.linux.org.uk> <20151123211601.GE19156@codeaurora.org> <20151123213337.GX8644@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:42820 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752364AbbKXBEo (ORCPT ); Mon, 23 Nov 2015 20:04:44 -0500 Content-Disposition: inline In-Reply-To: <20151123213337.GX8644@n2100.arm.linux.org.uk> Sender: linux-arm-msm-owner@vger.kernel.org List-Id: linux-arm-msm@vger.kernel.org To: Russell King - ARM Linux Cc: linux-arm-kernel@lists.infradead.org, =?iso-8859-1?Q?M=E5ns_Rullg=E5rd?= , Arnd Bergmann , Nicolas Pitre , linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Steven Rostedt On 11/23, Russell King - ARM Linux wrote: > On Mon, Nov 23, 2015 at 01:16:01PM -0800, Stephen Boyd wrote: > > Thanks. I don't see the prints on my system even with this config > > on top of allyesconfig. Odd. > > Hmm. > > It could be because I use ccache in hardlink mode to avoid the disk > overhead of having two copies and having to duplicate the file > contents. > > If the kernel build thinks it can modify an object file in place, it > will lead to this, as it will end up modifying the stored ccache > file unless it specifically breaks the hardlink. > That sounds very possible. I'd have to get ccache setup with hardlinks to test out your theory. Is it supported to use ccache with hardlinks to build the kernel? The ccache documentation makes it sounds like it will confuse make and isn't a good idea. -- Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project