[all-commits] [llvm/llvm-project] 738cbf: [scudo] Fix all deadlocks with condition code vari...

[Christopher Ferris via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 738cbf1883083525a76a6eeb30671ea778661bd3
      https://github.com/llvm/llvm-project/commit/738cbf1883083525a76a6eeb30671ea778661bd3
  Author: Christopher Ferris <cferris1000 at users.noreply.github.com>
  Date:   2026-07-29 (Wed, 29 Jul 2026)

  Changed paths:
    M compiler-rt/lib/scudo/standalone/combined.h
    M compiler-rt/lib/scudo/standalone/primary32.h
    M compiler-rt/lib/scudo/standalone/primary64.h
    M compiler-rt/lib/scudo/standalone/tests/combined_test.cpp
    M compiler-rt/lib/scudo/standalone/tests/primary_test.cpp
    M compiler-rt/lib/scudo/standalone/wrappers_c.cpp

  Log Message:
  -----------
  [scudo] Fix all deadlocks with condition code variables. (#212604)

Added a ScopedFLLock that automatically handles notify calls if there
are waiters. Replace all ScopedLock of FLLock with this new
ScopedFLLock. Updated the enable function to properly notify FLLock
waiters if necessary.

Added a new function for re-enabling in the child process after a fork
to clear the variables used by the condition code.



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