From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759802AbaGCXHg (ORCPT ); Thu, 3 Jul 2014 19:07:36 -0400 Received: from mail-ob0-f182.google.com ([209.85.214.182]:49813 "EHLO mail-ob0-f182.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759740AbaGCXHf (ORCPT ); Thu, 3 Jul 2014 19:07:35 -0400 Message-ID: <53B5E2AF.5030208@gmail.com> Date: Thu, 03 Jul 2014 19:09:35 -0400 From: Boris Ostrovsky User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 MIME-Version: 1.0 To: Jan Beulich CC: mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com, Andy Lutomirski , linux-kernel@vger.kernel.org, Konrad Rzeszutek Wilk Subject: Re: [PATCH] x86-64: fix vDSO build References: <53B5861E02000078000204D1@mail.emea.novell.com> In-Reply-To: <53B5861E02000078000204D1@mail.emea.novell.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/03/2014 10:34 AM, Jan Beulich wrote: > Certain ld versions (observed with 2.20.0) put an empty .rela.dyn > section into shared object files, breaking the assumption on the number > of sections to be copied to the final output. Simply discard any empty > SHT_REL and SHT_RELA sections to address this. Tested-by: Boris Ostrovsky > > Signed-off-by: Jan Beulich > Cc: Andy Lutomirski > --- > arch/x86/vdso/vdso2c.h | 3 +++ > 1 file changed, 3 insertions(+) > > --- 3.16-rc3/arch/x86/vdso/vdso2c.h > +++ 3.16-rc3-x86-vdso-build/arch/x86/vdso/vdso2c.h > @@ -93,6 +93,9 @@ static void BITSFUNC(copy_section)(struc > uint64_t flags = GET_LE(&in->sh_flags); > > bool copy = flags & SHF_ALLOC && > + (GET_LE(&in->sh_size) || > + (GET_LE(&in->sh_type) != SHT_RELA && > + GET_LE(&in->sh_type) != SHT_REL)) && > strcmp(name, ".altinstructions") && > strcmp(name, ".altinstr_replacement"); > > > > > -- > 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/