Alastair Houghton 41f46ec085 [Threading][TSan] Fix TSan errors from lazy init on Linux. ...

Move the TSan functionality from Concurrency into Threading.  Use it
in the Linux `ulock` implementation so that TSan knows about `ulock`
and will tolerate the newer `swift_once` implementation that uses it.

rdar://110665213

2023-06-19 15:32:50 +01:00

2.5 KiB

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