From patchwork Mon Jun 6 17:35:19 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paolo Bonzini X-Patchwork-Id: 9158951 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 9F70960759 for ; Mon, 6 Jun 2016 17:44:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9344325EF7 for ; Mon, 6 Jun 2016 17:44:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 85C8028327; Mon, 6 Jun 2016 17:44:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 10F5C25EF7 for ; Mon, 6 Jun 2016 17:44:31 +0000 (UTC) Received: from localhost ([::1]:44252 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b9yZi-0001gt-4C for patchwork-qemu-devel@patchwork.kernel.org; Mon, 06 Jun 2016 13:44:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:37412) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b9yRC-0002JX-Gk for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b9yRA-0001QK-LR for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:41 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58093) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b9yRA-0001QD-9W for qemu-devel@nongnu.org; Mon, 06 Jun 2016 13:35:40 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E0A3619C33B for ; Mon, 6 Jun 2016 17:35:39 +0000 (UTC) Received: from donizetti.redhat.com (ovpn-112-64.ams2.redhat.com [10.36.112.64]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u56HZNDq025291; Mon, 6 Jun 2016 13:35:38 -0400 From: Paolo Bonzini To: qemu-devel@nongnu.org Date: Mon, 6 Jun 2016 19:35:19 +0200 Message-Id: <1465234520-11160-11-git-send-email-pbonzini@redhat.com> In-Reply-To: <1465234520-11160-1-git-send-email-pbonzini@redhat.com> References: <1465234520-11160-1-git-send-email-pbonzini@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Mon, 06 Jun 2016 17:35:39 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 10/11] Make avx2 configure test work with -O2 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Dr. David Alan Gilbert" Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: "Dr. David Alan Gilbert" When configured with --extra-cflags=-O2 gcc optimised out the test and the readelf failed the check leaving avx2 disabled. Signed-off-by: Dr. David Alan Gilbert Message-Id: <1464792879-30954-2-git-send-email-dgilbert@redhat.com> Reviewed-by: Liang Li Signed-off-by: Paolo Bonzini --- configure | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/configure b/configure index 6d01d96..08952af 100755 --- a/configure +++ b/configure @@ -1783,7 +1783,7 @@ fi cat > $TMPC << EOF static void bar(void) {} static void *bar_ifunc(void) {return (void*) bar;} -static void foo(void) __attribute__((ifunc("bar_ifunc"))); +void foo(void) __attribute__((ifunc("bar_ifunc"))); int main(void) { foo(); return 0; } EOF if compile_prog "-mavx2" "" ; then