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