Messages in this thread | | | Subject | Re: [PATCH] perf test shell: Add -D to check dynamic symbols for ubuntu/debian | From | Li Zhijian <> | Date | Wed, 9 May 2018 15:38:48 +0800 |
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Sorry, just noticed this path is out-of-date i will rebase it
On 05/09/2018 03:36 PM, Li Zhijian wrote: > ping > > > On 12/27/2017 04:50 PM, Li Zhijian wrote: >> 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 <tmricht@linux.vnet.ibm.com> >> CC: Arnaldo Carvalho de Melo <acme@redhat.com> >> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> >> --- >> tools/perf/tests/shell/trace+probe_libc_inet_pton.sh | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh >> index 8b3da21..f939bd6 100755 >> --- a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh >> +++ b/tools/perf/tests/shell/trace+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
-- Best regards. Li Zhijian (8528)
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