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perf machine: Add inline information to frame pointer and LBR callchains

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Use append_inlines() in frame pointer and LBR cases.

Update the addr2line test to also test frame pointers.

LBR is also updated but inaccuracy in the branched to IP means the
inline information is missing in the leaf.

Leave LBR callchains untested for now.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Aditya Bodkhe <aditya.b1@linux.ibm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Chun-Tse Shao <ctshao@google.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Howard Chu <howardchu95@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Wielaard <mark@klomp.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <pjw@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sergei Trofimovich <slyich@gmail.com>
Cc: Shimin Guo <shimin.guo@skydio.com>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Thomas Falcon <thomas.falcon@intel.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Ian Rogers
2026-01-16 21:28:49 -08:00
committed by Arnaldo Carvalho de Melo
parent 6b2658b3f3
commit 28cb835f76
2 changed files with 86 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
tools/perf/tests/shell/addr2line_inlines.sh
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@@ -21,8 +21,28 @@ trap_cleanup() {
}
trap trap_cleanup EXIT TERM INT
test_inlinedloop() {
echo "Inline unwinding verification test"
test_fp() {
echo "Inline unwinding fp verification test"
# Record data. Currently only dwarf callchains support inlined functions.
perf record --call-graph fp -e task-clock: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 fp verification test [Success]"
else
echo "Inline unwinding fp verification test [Failed missing inlined functions]"
err=1
fi
}
test_dwarf() {
echo "Inline unwinding dwarf verification test"
# Record data. Currently only dwarf callchains support inlined functions.
perf record --call-graph dwarf -e task-clock:u -o "${perf_data}" -- perf test -w inlineloop 1
@@ -34,14 +54,15 @@ test_inlinedloop() {
if grep -q "inlineloop.c:2. (inlined)" "${perf_script_txt}" &&
grep -q "inlineloop.c:3.$" "${perf_script_txt}"
then
echo "Inline unwinding verification test [Success]"
echo "Inline unwinding dwarf verification test [Success]"
else
echo "Inline unwinding verification test [Failed missing inlined functions]"
echo "Inline unwinding dwarf verification test [Failed missing inlined functions]"
err=1
fi
}
test_inlinedloop
test_fp
test_dwarf
cleanup
exit $err