From: Thomas Richter <tmricht@linux.ibm.com>
To: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
acme@kernel.org
Cc: svens@linux.ibm.com, gor@linux.ibm.com, sumanthk@linux.ibm.com,
hca@linux.ibm.com, Thomas Richter <tmricht@linux.ibm.com>
Subject: [PATCH] Fix perf test probe libc's inet_pton on x86_64
Date: Wed, 3 May 2023 10:12:55 +0200 [thread overview]
Message-ID: <20230503081255.3372986-1-tmricht@linux.ibm.com> (raw)
The test case probe libc's inet_pton & backtrace it with ping
fails with Fedora 38 on x86_64.
Function getaddrinfo() does not show up in the call chain anymore:
# ./perf script
ping 1803 [000] 728.567146: probe_libc:inet_pton: (7f5275afc840)
133840 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
27b4a __libc_start_call_main+0x7a (/usr/lib64/libc.so.6)
27c0b __libc_start_main@@GLIBC_2.34+0x8b (/usr/lib64/libc.so.6)
ping 1803 [000] 728.567184: probe_libc:inet_pton: (7f5275afc840)
133840 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6)
493e main+0xcde (/usr/bin/ping)
27b4a __libc_start_call_main+0x7a (/usr/lib64/libc.so.6)
#
which causes the test case to fail. Remove function getaddrinfo()
from list of expected functions.
Output before:
# ./perf test 'libc'
91: probe libc's inet_pton & backtrace it with ping : FAILED!
#
Output after:
# ./perf test 'libc'
91: probe libc's inet_pton & backtrace it with ping : Ok
#
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
---
tools/perf/tests/shell/record+probe_libc_inet_pton.sh | 1 -
1 file changed, 1 deletion(-)
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 b4149b2db4c6..8d5915d3ad6f 100755
--- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh
@@ -51,7 +51,6 @@ trace_libc_inet_pton_backtrace() {
;;
*)
eventattr='max-stack=3'
- echo "getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc\)$" >> $expected
echo ".*(\+0x[[:xdigit:]]+|\[unknown\])[[:space:]]\(.*/bin/ping.*\)$" >> $expected
;;
esac
--
2.40.1
next reply other threads:[~2023-05-03 8:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-03 8:12 Thomas Richter [this message]
2023-05-03 14:15 ` [PATCH] Fix perf test probe libc's inet_pton on x86_64 Arnaldo Carvalho de Melo
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