Add a lock to GetNewThunksBlock #119267
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Add a lock to GetNewThunksBlock #119267
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Fixes dotnet#116089. The method accesses shared static state, locking is needed.
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Pull Request Overview
This PR adds thread safety to the GetNewThunksBlock method by introducing a lock to protect access to shared static state. The issue was that multiple threads could concurrently access and modify the static fields s_currentlyMappedThunkBlocks and s_currentlyMappedThunkBlocksIndex without synchronization, leading to potential race conditions.
Key changes:
- Adds a static
Lockfield for synchronization - Wraps the
GetNewThunksBlockmethod body with lock acquisition using the newLock.Scopepattern - Imports the
System.Threadingnamespace to support the locking functionality
jkotas
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Sep 2, 2025
src/coreclr/nativeaot/System.Private.CoreLib/src/System/Runtime/ThunkPool.cs
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Sep 2, 2025
filipnavara
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Sep 2, 2025
…e/ThunkPool.cs Co-authored-by: Jan Kotas <[email protected]>
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Sep 5, 2025
Fixes dotnet#116089. The method accesses shared static state, locking is needed.
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Fixes #116089.
The method accesses shared static state, locking is needed.
Cc @dotnet/ilc-contrib