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perf record test depends on finding symbol test_loop in perf, and fails if
perf has been stripped and no debug object is available. In that case, skip
the test instead.
Example:
Note, building with perl support adds option -Wl,-E which causes the
linker to add all (global) symbols to the dynamic symbol table. So the
test_loop symbol, being global, does not get stripped unless NO_LIBPERL=1
Before:
$ make NO_LIBPERL=1 -C tools/perf >/dev/null 2>&1
$ strip tools/perf/perf
$ tools/perf/perf buildid-cache -p `realpath tools/perf/perf`
$ tools/perf/perf test -v 'record tests'
91: perf record tests :
--- start ---
test child forked, pid 118750
Basic --per-thread mode test
Per-thread record [Failed missing output]
Register capture test
Register capture test [Success]
Basic --system-wide mode test
System-wide record [Skipped not supported]
Basic target workload test
Workload record [Failed missing output]
test child finished with -1
---- end ----
perf record tests: FAILED!
After:
$ tools/perf/perf test -v 'record tests'
91: perf record tests :
--- start ---
test child forked, pid 120025
perf does not have symbol 'test_loop'
perf is missing symbols - skipping test
test child finished with -2
---- end ----
perf record tests: Skip
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20231123075848.9652-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
3c489dbe69