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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 3C7F4C433B4 for ; Mon, 17 May 2021 14:36:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2099261004 for ; Mon, 17 May 2021 14:36:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240331AbhEQOhr (ORCPT ); Mon, 17 May 2021 10:37:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:43786 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240304AbhEQOdw (ORCPT ); Mon, 17 May 2021 10:33:52 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 57B7661923; Mon, 17 May 2021 14:16:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621260987; bh=PHv2KvDy2IsXL+3VSPa4nrcKmdcnjm1hesbTOs07WOI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Iq24qAp3+fK62qZd3FlxNfjwUnk/jaeJBVEAT/dbbvHpVLlS+QL8ESwoqkaUv/kIl foYRswgCsQ1XlWTnIUNgyqLf5+RO01ajPELPnxycfbWgJK7+d7c1xxxbb+XuZLoNNJ JlyoFgd6UPPMWBYFxbDpC+jA2HEBMH4OKXaMqXsQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, "Justin M. Forbes" , Jiri Olsa , Alexander Shishkin , Ian Rogers , Mark Rutland , Michael Petlan , Namhyung Kim , Peter Zijlstra , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH 5.12 284/363] perf tools: Fix dynamic libbpf link Date: Mon, 17 May 2021 16:02:30 +0200 Message-Id: <20210517140312.207744252@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210517140302.508966430@linuxfoundation.org> References: <20210517140302.508966430@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jiri Olsa [ Upstream commit ad1237c30d975535a669746496cbed136aa5a045 ] Justin reported broken build with LIBBPF_DYNAMIC=1. When linking libbpf dynamically we need to use perf's hashmap object, because it's not exported in libbpf.so (only in libbpf.a). Following build is now passing: $ make LIBBPF_DYNAMIC=1 BUILD: Doing 'make -j8' parallel build ... $ ldd perf | grep libbpf libbpf.so.0 => /lib64/libbpf.so.0 (0x00007fa7630db000) Fixes: eee19501926d ("perf tools: Grab a copy of libbpf's hashmap") Reported-by: Justin M. Forbes Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Ian Rogers Cc: Mark Rutland Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20210508205020.617984-1-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/Makefile.config | 1 + tools/perf/util/Build | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index d8e59d31399a..c955cd683e22 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -530,6 +530,7 @@ ifndef NO_LIBELF ifdef LIBBPF_DYNAMIC ifeq ($(feature-libbpf), 1) EXTLIBS += -lbpf + $(call detected,CONFIG_LIBBPF_DYNAMIC) else dummy := $(error Error: No libbpf devel library found, please install libbpf-devel); endif diff --git a/tools/perf/util/Build b/tools/perf/util/Build index e3e12f9d4733..5a296ac69415 100644 --- a/tools/perf/util/Build +++ b/tools/perf/util/Build @@ -141,7 +141,14 @@ perf-$(CONFIG_LIBELF) += symbol-elf.o perf-$(CONFIG_LIBELF) += probe-file.o perf-$(CONFIG_LIBELF) += probe-event.o +ifdef CONFIG_LIBBPF_DYNAMIC + hashmap := 1 +endif ifndef CONFIG_LIBBPF + hashmap := 1 +endif + +ifdef hashmap perf-y += hashmap.o endif -- 2.30.2