[Git][ghc/ghc][master] 22 commits: rts/Messages: Refactor

[Marge Bot (@marge-bot)]

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC


Commits:
ed056bc3 by Ben Gamari at 2022-12-16T16:12:44-05:00
rts/Messages: Refactor

This doesn't change behavior but makes the code a bit easier to follow.

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7356f8e0 by Ben Gamari at 2022-12-16T16:12:44-05:00
rts/ThreadPaused: Ordering fixes

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914f0025 by Ben Gamari at 2022-12-16T16:12:44-05:00
eventlog: Silence spurious data race

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fbc84244 by Ben Gamari at 2022-12-16T16:12:44-05:00
Introduce SET_INFO_RELEASE for Cmm

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821b5472 by Ben Gamari at 2022-12-16T16:12:44-05:00
rts: Use fences instead of explicit barriers

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2228c999 by Ben Gamari at 2022-12-16T16:12:44-05:00
rts/stm: Fix memory ordering in readTVarIO#

See #22421.

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99269b9f by Ben Gamari at 2022-12-16T16:12:44-05:00
Improve heap memory barrier Note

Also introduce MUT_FIELD marker in Closures.h to document mutable
fields.

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70999283 by Ben Gamari at 2022-12-16T16:12:44-05:00
rts: Introduce getNumCapabilities

And ensure accesses to n_capabilities are atomic (although with relaxed
ordering). This is necessary as RTS API callers may concurrently call
into the RTS without holding a capability.

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98689f77 by Ben Gamari at 2022-12-16T16:12:44-05:00
ghc: Fix data race in dump file handling

Previously the dump filename cache would use a non-atomic update which
could potentially result in lost dump contents. Note that this is still
a bit racy since the first writer may lag behind a later appending
writer.

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605d9547 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Always use atomics for context_switch and interrupt

Since these are modified by the timer handler.

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86f20258 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts/Timer: Always use atomic operations

As noted in #22447, the existence of the pthread-based ITimer
implementation means that we cannot assume that the program is
single-threaded.

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f8e901dc by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Encapsulate recent_activity access

This makes it easier to ensure that it is accessed using the necessary
atomic operations.

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e0affaa9 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Encapsulate access to capabilities array

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7ca683e4 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Encapsulate sched_state

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1cf13bd0 by Ben Gamari at 2022-12-16T16:12:45-05:00
PrimOps: Fix benign MutVar race

Relaxed ordering is fine here since the later CAS implies a release.

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3d2a7e08 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Style fix

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82c62074 by Ben Gamari at 2022-12-16T16:12:45-05:00
compiler: Use release store in eager blackholing

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eb1a0136 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Fix ordering of makeStableName

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ad0e260a by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Use ordered accesses instead of explicit barriers

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a3eccf06 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Statically allocate capabilities

This is a rather simplistic way of solving #17289.

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287fa3fb by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Ensure that all accesses to pending_sync are atomic

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351eae58 by Ben Gamari at 2022-12-16T16:12:45-05:00
rts: Note race with wakeBlockingQueue

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30 changed files:

- compiler/GHC/StgToCmm/Bind.hs
- compiler/GHC/Utils/Logger.hs
- rts/Apply.cmm
- rts/Capability.c
- rts/Capability.h
- rts/HeapStackCheck.cmm
- rts/IOManager.c
- rts/Messages.c
- rts/Messages.h
- rts/PrimOps.cmm
- rts/Printer.c
- rts/ProfHeap.c
- rts/ProfilerReport.c
- rts/ProfilerReportJson.c
- rts/Profiling.c
- rts/Proftimer.c
- rts/RetainerProfile.c
- rts/RtsAPI.c
- rts/RtsStartup.c
- rts/SMPClosureOps.h
- rts/STM.c
- rts/Schedule.c
- rts/Schedule.h
- rts/Stats.c
- rts/StgMiscClosures.cmm
- rts/Task.c
- rts/ThreadPaused.c
- rts/Threads.c
- rts/Timer.c
- rts/TraverseHeap.c


The diff was not included because it is too large.


View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/03ed0b95147ef6da99ac60302fea282d4df5f072...351eae582192f6a573ba50f12782179ab7f5428b

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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/03ed0b95147ef6da99ac60302fea282d4df5f072...351eae582192f6a573ba50f12782179ab7f5428b
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