[llvm-branch-commits] [compiler-rt] release/19.x: [compiler-rt] [fuzzer] Skip trying to set the thread name on MinGW (#115167) (PR #115287)

[via llvm-branch-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: None (llvmbot)

<details>
<summary>Changes</summary>

Backport 87f4bc0acad65b1d20160d4160c7778b187125fc

Requested by: @<!-- -->mstorsjo

---
Full diff: https://github.com/llvm/llvm-project/pull/115287.diff


1 Files Affected:

- (modified) compiler-rt/lib/fuzzer/FuzzerUtilWindows.cpp (+5-4) 


``````````diff
diff --git a/compiler-rt/lib/fuzzer/FuzzerUtilWindows.cpp b/compiler-rt/lib/fuzzer/FuzzerUtilWindows.cpp
index 73eea07cf869ff..da3eb3cfb34063 100644
--- a/compiler-rt/lib/fuzzer/FuzzerUtilWindows.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerUtilWindows.cpp
@@ -239,10 +239,11 @@ size_t PageSize() {
 }
 
 void SetThreadName(std::thread &thread, const std::string &name) {
-#if defined(_LIBCPP_HAS_THREAD_API_PTHREAD) ||                                 \
-    defined(_GLIBCXX_GCC_GTHR_POSIX_H)
-  (void)pthread_setname_np(thread.native_handle(), name.c_str());
-#else
+#ifndef __MINGW32__
+  // Not setting the thread name in MinGW environments. MinGW C++ standard
+  // libraries can either use native Windows threads or pthreads, so we
+  // don't know with certainty what kind of thread handle we're getting
+  // from thread.native_handle() here.
   typedef HRESULT(WINAPI * proc)(HANDLE, PCWSTR);
   HMODULE kbase = GetModuleHandleA("KernelBase.dll");
   proc ThreadNameProc =

``````````

</details>


https://github.com/llvm/llvm-project/pull/115287