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.
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| @@ -11,7 +11,7 @@ · 10 unmodified lines | ||
| 11 | 11 | . $(dirname $0)/lib/probe.sh |
| 12 | 12 | |
| 13 | 13 | libc=$(grep -w libc /proc/self/maps | head -1 | sed -r 's/.*[[:space:]](\/.*)/\1/g') |
| 14 | −nm -g $libc 2>/dev/null | fgrep -q inet_pton || exit 254 | |
| 14 | +nm -Dg $libc 2>/dev/null | fgrep -q inet_pton || exit 254 | |
| 15 | 15 | |
| 16 | 16 | trace_libc_inet_pton_backtrace() { |
| 17 | 17 | idx=0 |