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authorSteven Rostedt (VMware) <rostedt@goodmis.org>2021-07-07 19:14:51 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-07-08 20:01:51 +0300
commitfa73514d5e620c2bb48b63e1dd509ce0942c39cf (patch)
treef9d8f64e6e48a143c6232a73fd7437ec9cc96abd /tools
parent26c563731056c3ee66f91106c3078a8c36bb7a9e (diff)
downloadlinux-fa73514d5e620c2bb48b63e1dd509ce0942c39cf.tar.xz
tracing/selftests: Add tests to test histogram sym and sym-offset modifiers
Add a test to the tracing selftests that will catch if the .sym or .sym-offset modifiers break in the future. Link: https://lkml.kernel.org/r/20210707121451.101a1002@oasis.local.home Acked-by: Tom Zanussi <zanussi@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc18
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
index 2950bfbc6fce..adae72665500 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
@@ -39,6 +39,24 @@ grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
reset_trigger
+echo "Test histogram with sym modifier"
+
+echo 'hist:keys=call_site.sym' > events/kmem/kmalloc/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]* *}' events/kmem/kmalloc/hist > /dev/null || \
+ fail "sym modifier on kmalloc call_site did not work"
+
+reset_trigger
+
+echo "Test histogram with sym-offset modifier"
+
+echo 'hist:keys=call_site.sym-offset' > events/kmem/kmalloc/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]*+0x[0-9a-f][0-9a-f]*' events/kmem/kmalloc/hist > /dev/null || \
+ fail "sym-offset modifier on kmalloc call_site did not work"
+
+reset_trigger
+
echo "Test histogram with sort key"
echo 'hist:keys=parent_pid,child_pid:sort=child_pid.ascending' > events/sched/sched_process_fork/trigger