Bug 60920 - LogProfiler is wrongly storing Counters Descriptions(Type, Variance, Unit) in .mlpd
Summary: LogProfiler is wrongly storing Counters Descriptions(Type, Variance, Unit) in...
Alias: None
Product: Runtime
Classification: Mono
Component: Profiler ()
Version: unspecified
Hardware: PC Mac OS
: Normal normal
Target Milestone: Future Cycle (TBD)
Assignee: Alex Rønne Petersen
Depends on:
Reported: 2017-11-30 04:44 UTC by David Karlaš
Modified: 2017-12-01 03:37 UTC (History)
3 users (show)

Is this bug a regression?: ---
Last known good build:

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Description David Karlaš 2017-11-30 04:44:39 UTC
Issue is here: https://github.com/mono/mono/blob/0239710/mono/profiler/log.c#L2660-L2662
Problem is that mono_counter_get_type, mono_counter_get_unit and mono_counter_get_variance are not returning byte but uint, which are just masked. So I think log.c should do the shifting to get value into 0-255 range. Also notice that enums in managed reader needs fixing.
Comment 1 Alex Rønne Petersen 2017-11-30 07:12:29 UTC
We should just emit them as-is but encoded as LEB128 for simplicity and value parity with mono-counters.h.
Comment 2 Alex Rønne Petersen 2017-11-30 07:23:36 UTC