sinitax/cachepc-linux - Fork of AMDESE/linux with modifications for CachePC side-channel attack

	Commit message (Collapse)	Author	Age	Files	Lines
*	perf test: Record only user callchains on the "Check Arm64 callgraphs are ↵	Michael Petlan	2022-06-19	1	-1/+1
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	complete in fp mode" test The testcase 'Check Arm64 callgraphs are complete in fp mode' wants to see the following output: 610 leaf 62f parent 648 main However, without excluding kernel callchains, the output might look like: ffffc2ff40ef1b5c arch_local_irq_enable ffffc2ff419d032c __schedule ffffc2ff419d06c0 schedule ffffc2ff40e4da30 do_notify_resume ffffc2ff40e421b0 work_pending 610 leaf 62f parent 648 main Adding '--user-callchains' leaves only the wanted symbols in the chain. Fixes: cd6382d82752737e ("perf test arm64: Test unwinding using fame-pointer (fp) mode") Suggested-by: German Gomez <german.gomez@arm.com> Reviewed-by: German Gomez <german.gomez@arm.com> Reviewed-by: Leo Yan <leo.yan@linaro.org> Signed-off-by: Michael Petlan <mpetlan@redhat.com> Cc: German Gomez <german.gomez@arm.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20220614105207.26223-1-mpetlan@redhat.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
*	perf test arm64: Test unwinding using fame-pointer (fp) mode	German Gomez	2022-03-21	1	-0/+68
	Add a shell script to check that the call-graphs generated using frame pointers (--call-graph fp) are complete and not missing leaf functions: \| $ perf test 88 -v \| 88: Check Arm64 callgraphs are complete in fp mode : \| --- start --- \| test child forked, pid 8734 \| + Compiling test program (/tmp/test_program.Cz3yL)... \| + Recording (PID=8749)... \| + Stopping perf-record... \| test_program.Cz \| 728 leaf \| 753 parent \| 76c main \| test child finished with 0 \| ---- end ---- \| Check Arm SPE callgraphs are complete in fp mode: Ok It's supposed to work with both unwinders: \| $ make # for libunwind (default) \| $ make NO_LIBUNWIND=1 # for libdw Tester notes: Ran it on N1SDP and it passes, and it fails if b9f6fbb3b2c29736 ("perf arm64: Inject missing frames when using 'perf record --call-graph=fp'") isn't applied. Fixes: b9f6fbb3b2c29736 ("perf arm64: Inject missing frames when using 'perf record --call-graph=fp'") Suggested-by: Jiri Olsa <jolsa@kernel.org> Reviewed-by: James Clark <james.clark@arm.com> Tested-by: James Clark <james.clark@arm.com> Signed-off-by: German Gomez <german.gomez@arm.com> Cc: Alexandre Truong <alexandre.truong@arm.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lore.kernel.org/r/20220316172015.98000-1-german.gomez@arm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>