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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-06-04 16:11:13 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2018-06-06 17:52:06 +0200 |
| commit | 005cc008bc188f81f0c1ae53dafb50cdb6df19c2 (patch) | |
| tree | f1f4a64c38165801df9c4f826c6a3995525d6158 | |
| parent | perf map: Consider PTI entry trampolines in rip_2objdump() (diff) | |
| download | linux-005cc008bc188f81f0c1ae53dafb50cdb6df19c2.tar.xz linux-005cc008bc188f81f0c1ae53dafb50cdb6df19c2.zip | |
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 <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Sandipan Das <sandipan@linux.vnet.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-zlfnbauad3ljlmtjgo0v660u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rwxr-xr-x | tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 2 |
1 files changed, 1 insertions, 1 deletions
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 650b208f700f..263057039693 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 -Dg $libc 2>/dev/null | fgrep -q inet_pton || exit 254 trace_libc_inet_pton_backtrace() { idx=0 |