From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.7 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D06D4C4361B for ; Mon, 14 Dec 2020 10:59:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7C10E22BEF for ; Mon, 14 Dec 2020 10:59:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437258AbgLNK7S (ORCPT ); Mon, 14 Dec 2020 05:59:18 -0500 Received: from out30-133.freemail.mail.aliyun.com ([115.124.30.133]:54452 "EHLO out30-133.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2407369AbgLNK5r (ORCPT ); Mon, 14 Dec 2020 05:57:47 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R861e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04426;MF=teawaterz@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0UIa9lBF_1607943417; Received: from localhost(mailfrom:teawaterz@linux.alibaba.com fp:SMTPD_---0UIa9lBF_1607943417) by smtp.aliyun-inc.com(127.0.0.1); Mon, 14 Dec 2020 18:57:03 +0800 From: Hui Zhu To: ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Hui Zhu Subject: [PATCH] samples/bpf/Makefile: Create tools/testing/selftests/bpf dir Date: Mon, 14 Dec 2020 18:56:54 +0800 Message-Id: <20201214105654.5048-1-teawater@gmail.com> X-Mailer: git-send-email 2.17.1 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Hui Zhu Got an error when I built samples/bpf in a separate directory: make O=../bk/ defconfig make -j64 bzImage make headers_install make V=1 M=samples/bpf ... ... make -C /home/teawater/kernel/linux/samples/bpf/../..//tools/build CFLAGS= LDFLAGS= fixdep make -f /home/teawater/kernel/linux/samples/bpf/../..//tools/build/Makefile.build dir=. obj=fixdep make all_cmd Warning: Kernel ABI header at 'tools/include/uapi/linux/netlink.h' differs from latest version at 'include/uapi/linux/netlink.h' Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h' gcc -Wp,-MD,samples/bpf/../../tools/testing/selftests/bpf/.cgroup_helpers.o.d -Wall -O2 -Wmissing-prototypes -Wstrict-prototypes -I./usr/include -I/home/teawater/kernel/linux/tools/testing/selftests/bpf/ -I/home/teawater/kernel/linux/tools/lib/ -I/home/teawater/kernel/linux/tools/include -I/home/teawater/kernel/linux/tools/perf -DHAVE_ATTR_TEST=0 -c -o samples/bpf/../../tools/testing/selftests/bpf/cgroup_helpers.o /home/teawater/kernel/linux/samples/bpf/../../tools/testing/selftests/bpf/cgroup_helpers.c /home/teawater/kernel/linux/samples/bpf/../../tools/testing/selftests/bpf/cgroup_helpers.c:315:1: fatal error: opening dependency file samples/bpf/../../tools/testing/selftests/bpf/.cgroup_helpers.o.d: No such file or directory ls -al samples/bpf/../../tools/testing/selftests/bpf/ ls: cannot access 'samples/bpf/../../tools/testing/selftests/bpf/': No such file or directory There is no samples/bpf/../../tools/testing/selftests/bpf/ causing a compilation error. This commit add a "make -p" before build files in samples/bpf/../../tools/testing/selftests/bpf/ to handle the issue. Signed-off-by: Hui Zhu --- samples/bpf/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index aeebf5d12f32..5b940eedf2e8 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -262,6 +262,7 @@ clean: $(LIBBPF): FORCE # Fix up variables inherited from Kbuild that tools/ build system won't like + mkdir -p $(obj)/../../tools/testing/selftests/bpf/ $(MAKE) -C $(dir $@) RM='rm -rf' EXTRA_CFLAGS="$(TPROGS_CFLAGS)" \ LDFLAGS=$(TPROGS_LDFLAGS) srctree=$(BPF_SAMPLES_PATH)/../../ O= -- 2.17.1