diff options
| -rwxr-xr-x | tools/perf/tests/shell/addr2line_inlines.sh | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/addr2line_inlines.sh b/tools/perf/tests/shell/addr2line_inlines.sh index ce30d9c7e0bf..e8754ef2d7f2 100755 --- a/tools/perf/tests/shell/addr2line_inlines.sh +++ b/tools/perf/tests/shell/addr2line_inlines.sh @@ -61,8 +61,36 @@ test_dwarf() { fi } +test_lbr() { + echo "Inline unwinding LBR verification test" + if [ ! -f /sys/bus/event_source/devices/cpu/caps/branches ] && + [ ! -f /sys/bus/event_source/devices/cpu_core/caps/branches ] + then + echo "Skip: only x86 CPUs support LBR" + return + fi + + # Record data. Currently only dwarf callchains support inlined functions. + perf record --call-graph lbr -e cycles:u -o "${perf_data}" -- perf test -w inlineloop 1 + + # Check output with inline (default) and srcline + perf script -i "${perf_data}" --fields +srcline > "${perf_script_txt}" + + # Expect the leaf and middle functions to occur on lines in the 20s, with + # the non-inlined parent function on a line in the 30s. + if grep -q "inlineloop.c:2. (inlined)" "${perf_script_txt}" && + grep -q "inlineloop.c:3.$" "${perf_script_txt}" + then + echo "Inline unwinding lbr verification test [Success]" + else + echo "Inline unwinding lbr verification test [Failed missing inlined functions]" + err=1 + fi +} + test_fp test_dwarf +test_lbr cleanup exit $err |