diff options
Diffstat (limited to '')
-rwxr-xr-x | tools/perf/tests/shell/test_arm_callgraph_fp.sh | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/test_arm_callgraph_fp.sh b/tools/perf/tests/shell/test_arm_callgraph_fp.sh new file mode 100755 index 000000000000..61898e256616 --- /dev/null +++ b/tools/perf/tests/shell/test_arm_callgraph_fp.sh @@ -0,0 +1,55 @@ +#!/bin/sh +# Check Arm64 callgraphs are complete in fp mode +# SPDX-License-Identifier: GPL-2.0 + +shelldir=$(dirname "$0") +# shellcheck source=lib/perf_has_symbol.sh +. "${shelldir}"/lib/perf_has_symbol.sh + +if [ "$(uname -m)" != "aarch64" ]; then + exit 2 +fi + +if perf version --build-options | grep HAVE_DWARF_UNWIND_SUPPORT | grep -q OFF +then + echo "Skipping, no dwarf unwind support" + exit 2 +fi + +skip_test_missing_symbol leafloop + +PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +TEST_PROGRAM="perf test -w leafloop" + +cleanup_files() +{ + rm -f "$PERF_DATA" +} + +trap cleanup_files EXIT TERM INT + +# Add a 1 second delay to skip samples that are not in the leaf() function +# shellcheck disable=SC2086 +perf record -o "$PERF_DATA" --call-graph fp -e cycles//u -D 1000 --user-callchains -- $TEST_PROGRAM 2> /dev/null & +PID=$! + +echo " + Recording (PID=$PID)..." +sleep 2 +echo " + Stopping perf-record..." + +kill $PID +wait $PID + +# expected perf-script output: +# +# program +# 728 leaf +# 753 parent +# 76c leafloop +# ... + +perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 +perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 | \ + awk '{ if ($2 != "") sym[i++] = $2 } END { if (sym[0] != "leaf" || + sym[1] != "parent" || + sym[2] != "leafloop") exit 1 }' |