From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ezequiel Garcia Subject: Re: [PATCH 05/28] nios2: Traps exception handling Date: Tue, 22 Apr 2014 11:28:31 -0300 Message-ID: <20140422142831.GC15745@arch.cereza> References: <1397824031-4892-1-git-send-email-lftan@altera.com> <1397845149-3141-1-git-send-email-lftan@altera.com> <1397845149-3141-2-git-send-email-lftan@altera.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Content-Disposition: inline In-Reply-To: <1397845149-3141-2-git-send-email-lftan@altera.com> Sender: linux-kernel-owner@vger.kernel.org To: Ley Foon Tan Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, lftan.linux@gmail.com, cltang@codesourcery.com List-Id: linux-arch.vger.kernel.org Hello Ley Foon, On Apr 19, Ley Foon Tan wrote: > + > +#ifndef CONFIG_ALIGNMENT_TRAP > +/* Alignment exception handler */ > +asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) > +{ > + unsigned long addr =3D RDCTL(CTL_BADADDR); > + > + cause >>=3D 2; > + fp->ea -=3D 4; > + > + if (fixup_exception(fp)) > + return; This will throw an undeclared error if you build with CONFIG_ALIGNMENT_= TRAP=3Dn. You need to add the uaccess.h header, or implement some similar fix. --=20 Ezequiel Garc=EDa, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from top.free-electrons.com ([176.31.233.9]:49236 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751034AbaDVO3B (ORCPT ); Tue, 22 Apr 2014 10:29:01 -0400 Date: Tue, 22 Apr 2014 11:28:31 -0300 From: Ezequiel Garcia Subject: Re: [PATCH 05/28] nios2: Traps exception handling Message-ID: <20140422142831.GC15745@arch.cereza> References: <1397824031-4892-1-git-send-email-lftan@altera.com> <1397845149-3141-1-git-send-email-lftan@altera.com> <1397845149-3141-2-git-send-email-lftan@altera.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1397845149-3141-2-git-send-email-lftan@altera.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Ley Foon Tan Cc: linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, lftan.linux@gmail.com, cltang@codesourcery.com Message-ID: <20140422142831.YqL7ilSOuLw9V_ZCmaSrdJztATkV2leQieihRPjFpYM@z> Hello Ley Foon, On Apr 19, Ley Foon Tan wrote: > + > +#ifndef CONFIG_ALIGNMENT_TRAP > +/* Alignment exception handler */ > +asmlinkage void handle_unaligned_c(struct pt_regs *fp, int cause) > +{ > + unsigned long addr = RDCTL(CTL_BADADDR); > + > + cause >>= 2; > + fp->ea -= 4; > + > + if (fixup_exception(fp)) > + return; This will throw an undeclared error if you build with CONFIG_ALIGNMENT_TRAP=n. You need to add the uaccess.h header, or implement some similar fix. -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com