perf test record+probe_libc_inet_pton: Ask 'nm' for dynamic symbols
tip-bot for Arnaldo Carvalho de Melo
merge botCommit-ID: 005cc008bc188f81f0c1ae53dafb50cdb6df19c2 Gitweb: https://git.kernel.org/tip/005cc008bc188f81f0c1ae53dafb50cdb6df19c2 Author: Arnaldo Carvalho de Melo <[email protected]> AuthorDate: Mon, 4 Jun 2018 11:11:13 -0300 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Wed, 6 Jun 2018 12:52:06 -0300
perf test record+probe_libc_inet_pton: Ask 'nm' for dynamic symbols
Adrian reported that this test fails in his system where:
probe libc's inet_pton & backtrace it with ping: FAILED!
root@kbl04:~/git/linux-perf# nm -g /lib/x86_64-linux-gnu/libc-2.19.so | grep inet_pton nm: /lib/x86_64-linux-gnu/libc-2.19.so: no symbols
This fails on ubuntu systems, with Adrian's being kubuntu 14.04, I tested with ubuntu 14.04.4 and 18.04, and there we need to use the -D/--dynamic 'nm' option to have this test working. And it works as well with that on fedora 27, so use it.
Reported-by Adrian Hunter <[email protected]>
Cc David Ahern <[email protected]>
Cc Heiko Carstens <[email protected]>
Cc Hendrik Brueckner <[email protected]>
Cc Jiri Olsa <[email protected]>
Cc Martin Schwidefsky <[email protected]>
Cc Namhyung Kim <[email protected]>
Cc Naveen N. Rao <[email protected]>
Cc Sandipan Das <[email protected]>
Cc Thomas Richter <[email protected]>
Cc Wang Nan <[email protected]>
Signed-off-by Arnaldo Carvalho de Melo <[email protected]>
--- tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
tools/perf/tests/shell/record+probe_libc_inet_pton.sh +1 -1
@@ -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 -Dg $libc 2>/dev/null | fgrep -q inet_pton || exit 254 trace_libc_inet_pton_backtrace() { idx=0