Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751618AbdF1Ohr (ORCPT ); Wed, 28 Jun 2017 10:37:47 -0400 Received: from mail-wr0-f169.google.com ([209.85.128.169]:36414 "EHLO mail-wr0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751553AbdF1Ohh (ORCPT ); Wed, 28 Jun 2017 10:37:37 -0400 MIME-Version: 1.0 In-Reply-To: <238b17a6-6284-eee3-4481-85d71c09b335@kernel.org> References: <20170628091810.30484-1-fathi.boudra@linaro.org> <238b17a6-6284-eee3-4481-85d71c09b335@kernel.org> From: Fathi Boudra Date: Wed, 28 Jun 2017 17:37:35 +0300 Message-ID: Subject: Re: [PATCH 1/1] selftests: timers: use LDLIBS instead of LDFLAGS to link against libpthread To: Shuah Khan Cc: linux-kselftest@vger.kernel.org, "linux-kernel@vger.kernel.org" , John Stultz , Denys Dmytriyenko Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2069 Lines: 50 On 28 June 2017 at 17:20, Shuah Khan wrote: > On 06/28/2017 03:18 AM, Fathi Boudra wrote: >> timers test fails to build due to undefined reference: >> >> aarch64-linaro-linux-gcc --sysroot=/build/tmp-rpb-glibc/sysroots/hikey >> -O2 -pipe -g -feliminate-unused-debug-types -O3 -Wl,-no-as-needed -Wall >> -DKTEST -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -lrt -lpthread >> posix_timers.c >> -o /build/tmp-rpb-glibc/work/hikey-linaro-linux/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers >> /tmp/cc1FTZzT.o: In function `check_timer_create': >> /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:157: >> undefined reference to `timer_create' >> /usr/src/debug/kselftests/4.12-r0/linux-4.12-rc7/tools/testing/selftests/timers/posix_timers.c:170: >> undefined reference to `timer_settime' >> collect2: error: ld returned 1 exit status >> >> Use LDLIBS instead of LDFLAGS to properly link against libpthread and fix >> this build issue. >> >> Signed-off-by: Denys Dmytriyenko >> Signed-off-by: Fathi Boudra > > I can't reproduce this on linux-kselftest next on x86_64. Is this arm64 speocific > problem? Please try this on linux-kselftest latest. yes, I tried linux-kselftest next and can reproduce. Maybe related to native build vs cross-build? I don't think it's arm64 specific. > thanks, > -- Shuah > >> --- >> tools/testing/selftests/timers/Makefile | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile >> index 5fa1d7e9a915..f48d7ca9d9b1 100644 >> --- a/tools/testing/selftests/timers/Makefile >> +++ b/tools/testing/selftests/timers/Makefile >> @@ -1,6 +1,6 @@ >> BUILD_FLAGS = -DKTEST >> CFLAGS += -O3 -Wl,-no-as-needed -Wall $(BUILD_FLAGS) >> -LDFLAGS += -lrt -lpthread >> +LDLIBS += -lrt -lpthread >> >> # these are all "safe" tests that don't modify >> # system time or require escalated privileges >> >