Messages in this thread Patch in this message | | | From | Thomas Richter <> | Subject | [PATCH v2 1/2] perf/test: Fix perf test 84 on s390 | Date | Wed, 28 Dec 2022 15:57:03 +0100 |
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perf test '84: probe libc's inet_pton & backtrace it with ping' fails on s390. Debugging revealed a changed stack trace for the ping command using probes:
ping 35729 [002] 8006.365063: probe_libc:inet_pton: (3ff9603e7c0) 13e7c0 __GI___inet_pton+0x0 (/usr/lib64/libc.so.6) ---> 104371 text_to_binary_address+0xef1 (inlined) 104371 gaih_inet+0xef1 (inlined) 104371 __GI_getaddrinfo+0xef1 (inlined) 5d4b main+0x139b (/usr/bin/ping)
The line ---> text_to_binary_address ... is new. It was introduced with glibc version 2.36.7.2 released with Fedora 37 for s390.
Output before # ./perf test 84 84: probe libc's inet_pton & backtrace it with ping : FAILED! #
Output after: # ./perf test 84 84: 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 insertion(+)
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 34c400ccbe04..4e9de55d871a 100755 --- a/tools/perf/tests/shell/record+probe_libc_inet_pton.sh +++ b/tools/perf/tests/shell/record+probe_libc_inet_pton.sh @@ -37,6 +37,7 @@ trace_libc_inet_pton_backtrace() { case "$(uname -m)" in s390x) eventattr='call-graph=dwarf,max-stack=4' + echo "text_to_binary_address.*\+0x[[:xdigit:]]+[[:space:]]\($libc|inlined\)$" >> $expected echo "gaih_inet.*\+0x[[:xdigit:]]+[[:space:]]\($libc|inlined\)$" >> $expected echo "(__GI_)?getaddrinfo\+0x[[:xdigit:]]+[[:space:]]\($libc|inlined\)$" >> $expected echo "main\+0x[[:xdigit:]]+[[:space:]]\(.*/bin/ping.*\)$" >> $expected -- 2.38.1
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