On system which has not installed debuginfo of iputils(ping) will fail like:
~/lkp/linux/tools/perf$ sudo ./perf test ping -v
63: probe libc's inet_pton & backtrace it with ping :
--- start ---
test child forked, pid 4207
ping 4224 [007] 3034121.295510: probe_libc:inet_pton: (7fedfccb2200)
7fedfccb2200 __GI___inet_pton+0x0 (/lib/x86_64-linux-gnu/libc-2.23.so)
7fedfcc7ad5e getaddrinfo+0xee (/lib/x86_64-linux-gnu/libc-2.23.so)
55e3239a9f4d [unknown] (/bin/ping)
FAIL: expected backtrace entry 3
".*\+0x[[:xdigit:]]+[[:space:]]\(.*/bin/ping.*\)$" got "55e3239a9f4d [unknown]
(/bin/ping)"
test child finished with -1
---- end ----
probe libc's inet_pton & backtrace it with ping: FAILED!
To be compatible with this system, expects [unknown] as well
Fixes: 7903a7086723 ("perf script: Show symbol offsets by default")
CC: Sandipan Das <sandi...@linux.vnet.ibm.com>
CC: Thomas Richter <tmri...@linux.ibm.com>
Reported-by: kernel test robot <xiaolong...@intel.com>
Signed-off-by: Li Zhijian <lizhij...@cn.fujitsu.com>
---
tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 4 ++--
1 file changed, 2 insertions(+), 2 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 2630570..ebb6549 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -22,12 +22,12 @@ trace_libc_inet_pton_backtrace() {
eventattr='call-graph=dwarf,max-stack=4'
expected[2]="gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\($libc|inlined\)$"
expected[3]="(__GI_)?getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc|inlined\)$"
- expected[4]="main\+0x[[:xdigit:]]+[[:space:]]\(.*/bin/ping.*\)$"
+
expected[4]=".*(\+0x[[:xdigit:]]|\[unknown\])+[[:space:]]\(.*/bin/ping.*\)$"
;;
*)
eventattr='max-stack=3'
expected[2]="getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc\)$"
- expected[3]=".*\+0x[[:xdigit:]]+[[:space:]]\(.*/bin/ping.*\)$"
+
expected[3]=".*(\+0x[[:xdigit:]]|\[unknown\])+[[:space:]]\(.*/bin/ping.*\)$"
;;
esac
--
2.7.4
