From: Michael Petlan mpetlan@redhat.com
[ Upstream commit 72dcae8efd42699bbfd55e1ef187310c4e2e5dcb ]
The testcase 'Check Arm64 callgraphs are complete in fp mode' wants to see the following output:
610 leaf 62f parent 648 main
However, without excluding kernel callchains, the output might look like:
ffffc2ff40ef1b5c arch_local_irq_enable ffffc2ff419d032c __schedule ffffc2ff419d06c0 schedule ffffc2ff40e4da30 do_notify_resume ffffc2ff40e421b0 work_pending 610 leaf 62f parent 648 main
Adding '--user-callchains' leaves only the wanted symbols in the chain.
Fixes: cd6382d82752737e ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Suggested-by: German Gomez german.gomez@arm.com Reviewed-by: German Gomez german.gomez@arm.com Reviewed-by: Leo Yan leo.yan@linaro.org Signed-off-by: Michael Petlan mpetlan@redhat.com Cc: German Gomez german.gomez@arm.com Cc: Jiri Olsa jolsa@kernel.org Link: https://lore.kernel.org/r/20220614105207.26223-1-mpetlan@redhat.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/tests/shell/test_arm_callgraph_fp.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/perf/tests/shell/test_arm_callgraph_fp.sh b/tools/perf/tests/shell/test_arm_callgraph_fp.sh index 6ffbb27afaba..ec108d45d3c6 100755 --- a/tools/perf/tests/shell/test_arm_callgraph_fp.sh +++ b/tools/perf/tests/shell/test_arm_callgraph_fp.sh @@ -43,7 +43,7 @@ CFLAGS="-g -O0 -fno-inline -fno-omit-frame-pointer" cc $CFLAGS $TEST_PROGRAM_SOURCE -o $TEST_PROGRAM || exit 1
# Add a 1 second delay to skip samples that are not in the leaf() function -perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 -- $TEST_PROGRAM 2> /dev/null & +perf record -o $PERF_DATA --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null & PID=$!
echo " + Recording (PID=$PID)..."