pin arguments array (dotnet#5011)

tonerdo · May 12, 2020 · 5ef8150 · 5ef8150
1 parent 0951632
commit 5ef8150
Showing 1 changed file with 2 additions and 7 deletions.
diff --git a/src/System.Private.CoreLib/src/Internal/Runtime/Augments/RuntimeAugments.cs b/src/System.Private.CoreLib/src/Internal/Runtime/Augments/RuntimeAugments.cs
@@ -170,15 +170,10 @@ public static unsafe Array NewObjArray(RuntimeTypeHandle typeHandleForArrayType,
             EETypePtr eeTypePtr = typeHandleForArrayType.ToEETypePtr();
             Debug.Assert(eeTypePtr.IsArray);
 
-            int nArguments = arguments.Length;
-            int* pArguments = stackalloc int[nArguments];
-
-            for (int i = 0; i < nArguments; i++)
+            fixed (int* pArguments = arguments)
             {
-                pArguments[i] = arguments[i];
+                return ArrayHelpers.NewObjArray((IntPtr)eeTypePtr.ToPointer(), arguments.Length, pArguments);
             }
-
-            return ArrayHelpers.NewObjArray((IntPtr)eeTypePtr.ToPointer(), nArguments, pArguments);
         }
 
         public static ref byte GetSzArrayElementAddress(Array array, int index)