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Previously in the times of jevents.c, we would raise an exception for this. This is still invalid, even though the current code just ignores such an event. Re-introduce code to raise an exception for when no definition exists to help catch as many invalid JSONs as possible. [0] https://lore.kernel.org/linux-perf-users/9e851e2a-26c7-ba78-cb20-be4337b2916a@oracle.com/ Signed-off-by: John Garry Tested-by: Ilkka Koskinen Reviewed-by: Ian Rogers --- Please do not apply before [0], above. diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py index 8cd561aa606a..98cccc3fcbbd 100755 --- a/tools/perf/pmu-events/jevents.py +++ b/tools/perf/pmu-events/jevents.py @@ -347,12 +347,15 @@ class JsonEvent: if self.desc and not self.desc.endswith('. '): self.desc += '. ' self.desc = (self.desc if self.desc else '') + ('Unit: ' + self.pmu + ' ') - if arch_std and arch_std.lower() in _arch_std_events: - event = _arch_std_events[arch_std.lower()].event - # Copy from the architecture standard event to self for undefined fields. - for attr, value in _arch_std_events[arch_std.lower()].__dict__.items(): - if hasattr(self, attr) and not getattr(self, attr): - setattr(self, attr, value) + if arch_std: + if arch_std.lower() in _arch_std_events: + event = _arch_std_events[arch_std.lower()].event + # Copy from the architecture standard event to self for undefined fields. + for attr, value in _arch_std_events[arch_std.lower()].__dict__.items(): + if hasattr(self, attr) and not getattr(self, attr): + setattr(self, attr, value) + else: + raise argparse.ArgumentTypeError('Cannot find arch std event:', arch_std) self.event = real_event(self.name, event)