From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933838AbeEIHpq (ORCPT ); Wed, 9 May 2018 03:45:46 -0400 Received: from mail.cn.fujitsu.com ([183.91.158.132]:30075 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S933772AbeEIHpp (ORCPT ); Wed, 9 May 2018 03:45:45 -0400 X-IronPort-AV: E=Sophos;i="5.43,368,1503331200"; d="scan'208";a="39725230" From: Li Zhijian To: , CC: , , , , , , Li Zhijian , Thomas Richter , Arnaldo Carvalho de Melo Subject: [PATCH v2] perf test shell: Add -D to check dynamic symbols for ubuntu/debian Date: Wed, 9 May 2018 15:45:29 +0800 Message-ID: <1525851929-20233-1-git-send-email-lizhijian@cn.fujitsu.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.167.226.45] X-yoursite-MailScanner-ID: 8EECA4D0EFC7.A523F X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: lizhijian@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Ubuntu and Debian, we can't find any symbol including "inet_pton" from 'nm -g' root@vm-lkp-nex04-8G-5 ~# nm -g /lib/x86_64-linux-gnu/libc-2.25.so | grep inet_pton nm: /lib/x86_64-linux-gnu/libc-2.25.so: no symbols it looks libc.so has different symbol compositions at different distros Usage: nm [option(s)] [file(s)] List symbols in [file(s)] (a.out by default). The options are: ...snip... -D, --dynamic Display dynamic symbols instead of normal symbols --defined-only Display only defined symbols -e (ignored) -f, --format=FORMAT Use the output format FORMAT. FORMAT can be `bsd', `sysv' or `posix'. The default is `bsd' -g, --extern-only Display only external symbols I tested both debian/ubuntu and RHEL, they work as expected CC: Thomas Richter CC: Arnaldo Carvalho de Melo Signed-off-by: Li Zhijian --- tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh index 016882d..deec366 100755 --- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh +++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh @@ -11,7 +11,7 @@ . $(dirname $0)/lib/probe.sh libc=$(grep -w libc /proc/self/maps | head -1 | sed -r 's/.*[[:space:]](\/.*)/\1/g') -nm -g $libc 2>/dev/null | fgrep -q inet_pton || exit 254 +nm -gD $libc 2>/dev/null | fgrep -q inet_pton || exit 254 trace_libc_inet_pton_backtrace() { idx=0 -- 2.7.4