Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966632AbbLPTmk (ORCPT ); Wed, 16 Dec 2015 14:42:40 -0500 Received: from mail.kernel.org ([198.145.29.136]:48361 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933202AbbLPTmj (ORCPT ); Wed, 16 Dec 2015 14:42:39 -0500 Date: Wed, 16 Dec 2015 16:42:34 -0300 From: Arnaldo Carvalho de Melo To: "Naveen N. Rao" Cc: Wang Nan , jolsa@redhat.com, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, sukadev@linux.vnet.ibm.com Subject: Re: [PATCH v4] perf: bpf: Fix build breakage due to libbpf Message-ID: <20151216194234.GA19926@kernel.org> References: <1450150557-127942-4-git-send-email-wangnan0@huawei.com> <1450169473-137129-1-git-send-email-wangnan0@huawei.com> <20151215114046.GG23726@naverao1-tp.in.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151215114046.GG23726@naverao1-tp.in.ibm.com> X-Url: http://acmel.wordpress.com User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1977 Lines: 54 Em Tue, Dec 15, 2015 at 05:10:46PM +0530, Naveen N. Rao escreveu: > On 2015/12/15 08:51AM, Wang Nan wrote: > > From: "Naveen N. Rao" > > > > perf build is currently (v4.4-rc5) broken on powerpc: > > > > bpf.c:28:4: error: #error __NR_bpf not defined. libbpf does not support > > your arch. > > # error __NR_bpf not defined. libbpf does not support your arch. > > ^ > > > > Fix this by including tools/scripts/Makefile.arch for the proper > > $ARCH macro. While at it, remove redundant LP64 macro definition. > > > > Also, since libbpf require $(srctree) now, detect the path of > > srctree like perf. > > > > Signed-off-by: Naveen N. Rao > > Signed-off-by: Wang Nan > > Acked-by: Jiri Olsa > > Cc: Arnaldo Carvalho de Melo > > Cc: Sukadev Bhattiprolu > > --- > > > > v3 -> v4: Add srctree detector code so directly run 'make' in libbpf > > directory would not cause error. > > Good catch! > > Tested-by: Naveen N. Rao Trying to apply the patchkit: [acme@zoo linux]$ make -C tools clean > /dev/null 2>&1 [acme@zoo linux]$ make -C tools/perf build-test make: Entering directory '/home/git/linux/tools/perf' Testing Makefile tests/make:15: /scripts/Makefile.arch: No such file or directory make[2]: *** No rule to make target '/scripts/Makefile.arch'. Stop. tests/make:5: recipe for target 'all' failed make[1]: *** [all] Error 2 Makefile:81: recipe for target 'build-test' failed make: *** [build-test] Error 2 make: Leaving directory '/home/git/linux/tools/perf' [acme@zoo linux]$ What am I doing wrong? - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/