Fix TPA map hash calculation. (#288)tizen_5.5_tv

* Fix TPA map hash calculation.

The point of issue is "the Turkish-I Problem". After locale changed, towupper() provide another result for "i" and different hash are calculated in case if file name have "i" letter.

* Regression test for #37910

1 files changed, 39 insertions, 0 deletions

diff --git a/src/coreclr/tests/src/Loader/binding/assemblies/assemblybugs/37910/Ii.cs b/src/coreclr/tests/src/Loader/binding/assemblies/assemblybugs/37910/Ii.cs
new file mode 100644
index 0000000000..65f0ea68c0
--- /dev/null
+++ b/src/coreclr/tests/src/Loader/binding/assemblies/assemblybugs/37910/Ii.cs
@@ -0,0 +1,39 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+using System;
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+public class Program
+{
+    [DllImport("libc", EntryPoint = "setlocale")]
+    public static extern IntPtr setlocale(int category, [MarshalAs(UnmanagedType.LPStr)] string locale);
+
+    public static int Main()
+    {
+        Assembly a1 = Assembly.GetExecutingAssembly();
+
+        // In case of Turkish locale:
+        // towupper 'i' -> \x0130 (instead of 'I')
+        // towlower 'I' -> \x0131 (instead of 'i')
+        const string TRLocale = "tr_TR.UTF-8";
+        IntPtr res = setlocale(6 /*LC_ALL*/, TRLocale);
+        if (TRLocale != Marshal.PtrToStringAnsi(res))
+        {
+            Console.WriteLine("Failed! " + TRLocale + " locale was not found in system!");
+            return -1;
+        }
+
+        Assembly a2 = Assembly.Load("Ii");
+
+        if (a1 != a2)
+        {
+            Console.WriteLine("Failed!");
+            return -2;
+        }
+
+        Console.WriteLine("Passed!");
+        return 100;
+    }
+}