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| author | Namhyung Kim <namhyung@kernel.org> | 2025-12-02 15:57:18 -0800 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2025-12-02 21:59:15 -0800 |
| commit | 34e271ae55382fbdb04f3e13e856457d8e0dee45 (patch) | |
| tree | 74733c2538f5d56c975f6e3930422ab6c4b893ed /tools/perf/tests/Build | |
| parent | 4fba95fc383f9231ba486512ee1c9d60b8f4a9a4 (diff) | |
perf test: Add kallsyms split test
Create a fake root directory for /proc/{version,modules,kallsyms} in
/tmp for testing. The kallsyms has a bad symbol in the module and it
causes the main map splitted. The test ensures it only has two maps -
kernel and the module and it finds the initial map after the module
without creating the split maps like [kernel].0 and so on.
$ perf test -vv "split kallsyms"
69: split kallsyms:
--- start ---
test child forked, pid 1016196
try to create fake root directory
create kernel maps from the fake root directory
maps__set_modules_path_dir: cannot open /tmp/perf-test.Zrv6Sy/lib/modules/X.Y.Z dir
Problems setting modules path maps, continuing anyway...
Failed to open /tmp/perf-test.Zrv6Sy/proc/kcore. Note /proc/kcore requires CAP_SYS_RAWIO capability to access.
Using /tmp/perf-test.Zrv6Sy/proc/kallsyms for symbols
kernel map loaded - check symbol and map
---- end(0) ----
69: split kallsyms : Ok
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/tests/Build')
| -rw-r--r-- | tools/perf/tests/Build | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index af67f8ef74b4..c2a67ce45941 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -69,6 +69,7 @@ perf-test-y += util.o perf-test-y += hwmon_pmu.o perf-test-y += tool_pmu.o perf-test-y += subcmd-help.o +perf-test-y += kallsyms-split.o ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc)) perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o |