Support long paths in CoreCLR runtime on Windows

src/binder/assemblybinder.cpp

@@ -173,9 +173,18 @@ namespace BINDER_SPACE
                                                           dwCCFullAssemblyPath,
                                                           pwzFullAssemblyPath,
                                                           NULL);
+                if (dwCCFullAssemblyPath > MAX_LONGPATH)
+                {
+                    fullAssemblyPath.CloseBuffer();
+                    pwzFullAssemblyPath = fullAssemblyPath.OpenUnicodeBuffer(dwCCFullAssemblyPath - 1);
+                    dwCCFullAssemblyPath = WszGetFullPathName(assemblyPath.GetUnicode(),
+                                                              dwCCFullAssemblyPath,
+                                                              pwzFullAssemblyPath,
+                                                              NULL);
+                }
                 fullAssemblyPath.CloseBuffer(dwCCFullAssemblyPath);
 
-                if ((dwCCFullAssemblyPath == 0) || (dwCCFullAssemblyPath > (MAX_LONGPATH + 1)))
+                if (dwCCFullAssemblyPath == 0)
                 {
                     hr = HRESULT_FROM_GetLastError();
                 }

src/binder/cdebuglog.cpp

@@ -58,12 +58,6 @@ namespace BINDER_SPACE
             PathString szPathString;
             DWORD   dw = 0;
 
-            // _ASSERTE (pszPath ) ;
-            if (wcslen(pszName) >= MAX_LONGPATH)
-            {
-                IF_FAIL_GO(HRESULT_FROM_WIN32(ERROR_BUFFER_OVERFLOW));
-            }
-
             size_t pszNameLen = wcslen(pszName);
             WCHAR * szPath = szPathString.OpenUnicodeBuffer(static_cast<COUNT_T>(pszNameLen));
             size_t cbSzPath = (sizeof(WCHAR)) * (pszNameLen + 1); // SString allocates extra byte for null

src/coreclr/hosts/corerun/CMakeLists.txt

@@ -23,7 +23,12 @@ else()
     )
 
     target_link_libraries(CoreRun
-        msvcrt.lib
+        utilcodestaticnohost
+        advapi32.lib
+        oleaut32.lib
+        uuid.lib
+        user32.lib
+        msvcrt$<$<OR:$<CONFIG:Debug>,$<CONFIG:Checked>>:d>.lib
     )
 
     # Can't compile on linux yet so only add for windows

src/coreclr/hosts/corerun/coreRun.nativeproj

@@ -18,10 +18,16 @@
     <IsTestNetHost>true</IsTestNetHost>
   </PropertyGroup>
 
+  <ItemGroup>
+    <LinkPreCrtLibs Include="$(ClrLibPath)\utilcodestaticnohost.lib" />
+    <ProjectReference Include="$(ClrSrcDirectory)utilcode\staticnohost\staticnohost.nativeproj" />
+  </ItemGroup>
   <ItemGroup>
     <TargetLib Include="$(CoreSystemCrt)" />
     <TargetLib Condition="'$(BuildForWindows7)'=='true'" Include="$(SdkLibPath)\mincore_fw.lib" />
     <TargetLib Condition="'$(BuildForWindows7)'!='true'" Include="$(SdkLibPath)\mincore.lib" />
+    <TargetLib Include="$(SdkLibPath)\oleaut32.lib" />
+    <TargetLib Include="$(SdkLibPath)\uuid.lib" />
   </ItemGroup>
 
   <ItemGroup>