Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758713AbcLOPul (ORCPT ); Thu, 15 Dec 2016 10:50:41 -0500 Received: from mail.kernel.org ([198.145.29.136]:46666 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758480AbcLOPui (ORCPT ); Thu, 15 Dec 2016 10:50:38 -0500 Date: Thu, 15 Dec 2016 12:50:22 -0300 From: Arnaldo Carvalho de Melo To: Joe Stringer Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wangnan0@huawei.com, ast@fb.com, daniel@iogearbox.net, Arnaldo Carvalho de Melo Subject: Re: [PATCH perf/core REBASE 2/5] samples/bpf: Switch over to libbpf Message-ID: <20161215155022.GE6866@kernel.org> References: <20161214224342.12858-1-joe@ovn.org> <20161214224342.12858-3-joe@ovn.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20161214224342.12858-3-joe@ovn.org> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.7.1 (2016-10-04) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2922 Lines: 63 Em Wed, Dec 14, 2016 at 02:43:39PM -0800, Joe Stringer escreveu: > Now that libbpf under tools/lib/bpf/* is synced with the version from > samples/bpf, we can get rid most of the libbpf library here. > > Signed-off-by: Joe Stringer > Cc: Alexei Starovoitov > Cc: Daniel Borkmann > Cc: Wang Nan > Link: http://lkml.kernel.org/r/20161209024620.31660-6-joe@ovn.org > [ Use -I$(srctree)/tools/lib/ to support out of source code tree builds, as noticed by Wang Nan ] > Signed-off-by: Arnaldo Carvalho de Melo So, right before this patch building samples/bpf works, then, after, it fails, investigating: [root@1e797fdfbf4f linux]# make -j4 O=/tmp/build/linux/ headers_install make[1]: Entering directory '/tmp/build/linux' CHK include/generated/uapi/linux/version.h make[1]: Leaving directory '/tmp/build/linux' [root@1e797fdfbf4f linux]# make -j4 O=/tmp/build/linux/ samples/bpf/ make[1]: Entering directory '/tmp/build/linux' CHK include/config/kernel.release GEN ./Makefile CHK include/generated/uapi/linux/version.h Using /git/linux as source for kernel CHK include/generated/utsrelease.h CHK include/generated/timeconst.h CHK include/generated/bounds.h CHK include/generated/asm-offsets.h CALL /git/linux/scripts/checksyscalls.sh HOSTCC samples/bpf/test_lru_dist.o HOSTCC samples/bpf/libbpf.o HOSTCC samples/bpf/sock_example.o HOSTCC samples/bpf/bpf_load.o In file included from /git/linux/samples/bpf/libbpf.c:12:0: /git/linux/samples/bpf/libbpf.h:5:21: fatal error: bpf/bpf.h: No such file or directory #include ^ compilation terminated. In file included from /git/linux/samples/bpf/test_lru_dist.c:24:0: /git/linux/samples/bpf/libbpf.h:5:21: fatal error: bpf/bpf.h: No such file or directory #include ^ compilation terminated. make[2]: *** [scripts/Makefile.host:124: samples/bpf/test_lru_dist.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[2]: *** [scripts/Makefile.host:124: samples/bpf/libbpf.o] Error 1 In file included from /git/linux/samples/bpf/bpf_load.c:24:0: /git/linux/samples/bpf/libbpf.h:5:21: fatal error: bpf/bpf.h: No such file or directory #include ^ compilation terminated. make[2]: *** [scripts/Makefile.host:124: samples/bpf/bpf_load.o] Error 1 In file included from /git/linux/samples/bpf/sock_example.c:29:0: /git/linux/samples/bpf/libbpf.h:5:21: fatal error: bpf/bpf.h: No such file or directory #include ^ compilation terminated. make[2]: *** [scripts/Makefile.host:124: samples/bpf/sock_example.o] Error 1 make[1]: *** [/git/linux/Makefile:1659: samples/bpf/] Error 2 make[1]: Leaving directory '/tmp/build/linux' make: *** [Makefile:150: sub-make] Error 2 [root@1e797fdfbf4f linux]#