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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /tools/perf/tests/shell/test_arm_callgraph_fp.sh | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/perf/tests/shell/test_arm_callgraph_fp.sh')
-rwxr-xr-x | tools/perf/tests/shell/test_arm_callgraph_fp.sh | 68 |
1 files changed, 68 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 000000000..ec108d45d --- /dev/null +++ b/tools/perf/tests/shell/test_arm_callgraph_fp.sh @@ -0,0 +1,68 @@ +#!/bin/sh +# Check Arm64 callgraphs are complete in fp mode +# SPDX-License-Identifier: GPL-2.0 + +lscpu | grep -q "aarch64" || exit 2 + +if ! [ -x "$(command -v cc)" ]; then + echo "failed: no compiler, install gcc" + exit 2 +fi + +PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +TEST_PROGRAM_SOURCE=$(mktemp /tmp/test_program.XXXXX.c) +TEST_PROGRAM=$(mktemp /tmp/test_program.XXXXX) + +cleanup_files() +{ + rm -f $PERF_DATA + rm -f $TEST_PROGRAM_SOURCE + rm -f $TEST_PROGRAM +} + +trap cleanup_files exit term int + +cat << EOF > $TEST_PROGRAM_SOURCE +int a = 0; +void leaf(void) { + for (;;) + a += a; +} +void parent(void) { + leaf(); +} +int main(void) { + parent(); + return 0; +} +EOF + +echo " + Compiling test program ($TEST_PROGRAM)..." + +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 --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 main +# ... + +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] != "main") exit 1 }' |