From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752970AbbLaQGk (ORCPT ); Thu, 31 Dec 2015 11:06:40 -0500 Received: from userp1040.oracle.com ([156.151.31.81]:46112 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751877AbbLaQGj (ORCPT ); Thu, 31 Dec 2015 11:06:39 -0500 From: Vegard Nossum To: Richard Weinberger Cc: Lorenzo Colitti , user-mode-linux-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Vegard Nossum Subject: [PATCH] um: link with -lpthread Date: Thu, 31 Dec 2015 17:06:17 +0100 Message-Id: <1451577977-12990-1-git-send-email-vegard.nossum@oracle.com> X-Mailer: git-send-email 1.9.1 X-Source-IP: aserv0021.oracle.com [141.146.126.233] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Similarly to commit fb1770aa78a43530940d0c2dd161e77bc705bdac, with gcc 5 on Ubuntu and CONFIG_STATIC_LINK=y I was seeing these linker errors: /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o): In function `__timer_create_new': (.text+0xcd): undefined reference to `pthread_once' /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o): In function `__timer_create_new': (.text+0x126): undefined reference to `pthread_attr_init' /usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/librt.a(timer_create.o): In function `__timer_create_new': (.text+0x168): undefined reference to `pthread_attr_setdetachstate' [...] Obviously we also need -lpthread for librt.a. Signed-off-by: Vegard Nossum --- scripts/link-vmlinux.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index dacf71a..ba6c34e 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -62,7 +62,7 @@ vmlinux_link() -Wl,--start-group \ ${KBUILD_VMLINUX_MAIN} \ -Wl,--end-group \ - -lutil -lrt ${1} + -lutil -lrt -lpthread ${1} rm -f linux fi } -- 1.9.1