[compiler-rt] 8f5a3ec - [sanitizer_common] Use HW_NCPUONLINE sysctl on NetBSD in GetNumberOfCPUs() (#134704)

[via llvm-commits]

Author: Brad Smith
Date: 2025-04-07T15:15:12-04:00
New Revision: 8f5a3ec649a3b46093c8a8140bbd91f21236fde6

URL: https://github.com/llvm/llvm-project/commit/8f5a3ec649a3b46093c8a8140bbd91f21236fde6
DIFF: https://github.com/llvm/llvm-project/commit/8f5a3ec649a3b46093c8a8140bbd91f21236fde6.diff

LOG: [sanitizer_common] Use HW_NCPUONLINE sysctl on NetBSD in GetNumberOfCPUs() (#134704)

Added: 
    

Modified: 
    compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp

Removed: 
    


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diff  --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
index e5e79d4e0521c..ffd240974454e 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux_libcdep.cpp
@@ -840,7 +840,11 @@ u32 GetNumberOfCPUs() {
   int req[2];
   uptr len = sizeof(ncpu);
   req[0] = CTL_HW;
+#    ifdef HW_NCPUONLINE
+  req[1] = HW_NCPUONLINE;
+#    else
   req[1] = HW_NCPU;
+#    endif
   CHECK_EQ(internal_sysctl(req, 2, &ncpu, &len, NULL, 0), 0);
   return ncpu;
 #  elif SANITIZER_SOLARIS