| #!/bin/bash | |
| # 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 "$PERF_DATA" | |
| } | |
| trap cleanup_files EXIT TERM INT | |
| # shellcheck disable=SC2086 | |
| perf record -o "$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" |