name : test_arm_callgraph_fp.sh #!/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 lscpu | grep -q "aarch64" || exit 2 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 # shellcheck disable=SC2086 perf record -o "$PERF_DATA" --call-graph fp -e cycles//u --user-callchains -- $TEST_PROGRAM # Try opening the file so any immediate errors are visible in the log perf script -i "$PERF_DATA" -F comm,ip,sym | head -n4 # expected perf-script output if 'leaf' has been inserted correctly: # # perf # 728 leaf # 753 parent # 76c leafloop # ... remaining stack to main() ... # Each frame is separated by a tab, some spaces and an address SEP="[[:space:]]+ [[:xdigit:]]+" perf script -i "$PERF_DATA" -F comm,ip,sym | tr '\n' ' ' | \ grep -E -q "perf $SEP leaf $SEP parent $SEP leafloop"