Perf capability check #254
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…perf support based on file capabilities and linux version Signed-off-by: Abena Laast <[email protected]>
…cluding checking the capabilities based on the linux version Signed-off-by: Abena Laast <[email protected]>
Xyene
reviewed
Aug 5, 2022
Xyene
reviewed
Aug 5, 2022
| if contains_cap t cap_string then has_eff t cap_string else true | ||
| ;; | ||
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| let check_perf_support getcap linux_version = |
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I think this function should probably live in perf_capabilities.ml, within supports_tracing_kernel.
Xyene
reviewed
Aug 5, 2022
| else Capability.empty | ||
| ;; | ||
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| let has_eff t cap_string = get_cap_sets t cap_string |> Capability.effective |
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Suggested change
| let has_eff t cap_string = get_cap_sets t cap_string |> Capability.effective | |
| let has_effective t cap_string = get_cap_sets t cap_string |> Capability.effective |
Nit: avoid shortened function/variable names for readability.
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Use capability parser to parse the output of getcap command on the perf file path; determine permission to trace kernel based on the linux version and the existence of cap_sys_admin/cap_perfmon in effective capabilities