Do not use ExecutableMemoryAllocator on 64 bit platforms if default b…

…ase address usage is requested (#70563)
dotnet · Jun 14, 2022 · 261574b · 261574b
1 parent fb9be0a
commit 261574b
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/src/coreclr/pal/src/map/map.cpp b/src/coreclr/pal/src/map/map.cpp
@@ -2284,7 +2284,13 @@ void * MAPMapPEFile(HANDLE hFile, off_t offset)
     // more efficient code (by avoiding usage of jump stubs). Alignment to a 64 KB granularity should
     // not be necessary (alignment to page size should be sufficient), but see
     // ExecutableMemoryAllocator::AllocateMemory() for the reason why it is done.
-    loadedBase = ReserveMemoryFromExecutableAllocator(pThread, ALIGN_UP(reserveSize, VIRTUAL_64KB));
+
+#ifdef FEATURE_ENABLE_NO_ADDRESS_SPACE_RANDOMIZATION
+    if (!g_useDefaultBaseAddr)
+#endif // FEATURE_ENABLE_NO_ADDRESS_SPACE_RANDOMIZATION
+    {
+        loadedBase = ReserveMemoryFromExecutableAllocator(pThread, ALIGN_UP(reserveSize, VIRTUAL_64KB));
+    }
 #endif // HOST_64BIT
 
     if (loadedBase == NULL)