Sorry, just noticed this path is out-of-date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 <tmri...@linux.vnet.ibm.com>
CC: Arnaldo Carvalho de Melo <a...@redhat.com>
Signed-off-by: Li Zhijian <lizhij...@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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