From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Rothwell Subject: Re: [PATCH] objtool: Disable stack validation when CROSS_COMPILE is used Date: Wed, 2 Mar 2016 13:27:35 +1100 Message-ID: <20160302132735.37262b34@canb.auug.org.au> References: <20160301122910.74ff0a92@canb.auug.org.au> <20160301070750.GA6636@gmail.com> <20160301204001.5594bed3@canb.auug.org.au> <20160301215451.GC4852@treble.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160301215451.GC4852@treble.redhat.com> Sender: linux-kernel-owner@vger.kernel.org To: Josh Poimboeuf Cc: Ingo Molnar , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , Peter Zijlstra , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org List-Id: linux-next.vger.kernel.org Hi Josh, On Tue, 1 Mar 2016 15:54:51 -0600 Josh Poimboeuf wrote: > > Changing it to use the host compiler would probably be an easy fix, but > that would expose a harder bug related to endianness. Just by luck, my PowerPC host is little endian :-) > How about the below workaround patch to disable objtool and warn when > CROSS_COMPILE is used? If anybody complains about lack of cross-compile > support later, we could try to fix it then. This seems reasonable. > From a3c65947011a420743f308b698171c4209105d3f Mon Sep 17 00:00:00 2001 > Message-Id: > From: Josh Poimboeuf > Date: Tue, 1 Mar 2016 13:35:51 -0600 > Subject: [PATCH] objtool: Disable stack validation when CROSS_COMPILE is used I have applied this to the merge of the tip tree in linux-next today and it compiles fine for me. I will continue applying it until something better comes along or it is applied to the tip tree. Thanks for that. -- Cheers, Stephen Rothwell