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Removes one of the few remaining usages of the Win32 PAL Mutex in native code.

@Copilot Copilot AI review requested due to automatic review settings July 15, 2025 21:24
@jkoritzinsky jkoritzinsky added the area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI label Jul 15, 2025
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Pull Request Overview

This PR modernizes synchronization in the SuperPMI tool by replacing Win32 PAL mutex usage with the minipal mutex implementation. This change removes one of the remaining dependencies on Win32 PAL mutex in native code, likely improving portability and consistency with the broader runtime codebase.

Key changes:

  • Replace Win32 HANDLE-based mutex with minipal_mutex type
  • Update mutex initialization, destruction, and locking operations to use minipal APIs
  • Simplify the AcquireLock method by removing error handling since minipal_mutex_enter doesn't fail

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File Description
methodcontextreader.h Updates mutex member variable type and adds minipal/mutex.h include
methodcontextreader.cpp Replaces Win32 mutex APIs with minipal equivalents in constructor, destructor, and lock methods

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Tagging subscribers to this area: @JulieLeeMSFT, @jakobbotsch
See info in area-owners.md if you want to be subscribed.

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/ba-g failures unrelated

@jkoritzinsky jkoritzinsky disabled auto-merge July 16, 2025 19:02
@jkoritzinsky jkoritzinsky enabled auto-merge (squash) July 16, 2025 19:02
@jkoritzinsky jkoritzinsky merged commit 885879e into dotnet:main Jul 16, 2025
93 of 96 checks passed
@jkoritzinsky jkoritzinsky deleted the mcr-minipal branch July 16, 2025 19:02
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3 participants