仿真平台内核初版 -tlib库 包含<sparc arm riscv powerPC>

lib/termsharp/Example/DllMap.cs

@@ -0,0 +1,68 @@
+//
+// Copyright (c) 2022 Antmicro
+//
+// This file is licensed under the MIT License.
+// Full license text is available in 'licenses/MIT.txt'.
+//
+using System;
+using System.Collections;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using System.Xml.Linq;
+
+namespace TermSharp.Example
+{
+    public static class DllMap
+    {
+        // Register a call-back for native library resolution.
+        public static void Register(Assembly assembly)
+        {
+            NativeLibrary.SetDllImportResolver(assembly, MapAndLoad);
+        }
+
+        // The callback which loads the mapped libray in place of the original.
+        private static IntPtr MapAndLoad(string libraryName, Assembly assembly, DllImportSearchPath? dllImportSearchPath)
+        {
+            var wasMapped = MapLibraryName(assembly.Location, libraryName, out var mappedName);
+            if(!wasMapped)
+            {
+                mappedName = libraryName;
+            }
+            return NativeLibrary.Load(mappedName, assembly, dllImportSearchPath);
+        }
+
+        // Parse the dll.config file and map the old name to the new name of a library.
+        private static bool MapLibraryName(string assemblyLocation, string originalLibName, out string mappedLibName)
+        {
+            string xmlPath = Path.Combine(Path.GetDirectoryName(assemblyLocation), Path.GetFileNameWithoutExtension(assemblyLocation) + ".dll.config");
+            mappedLibName = null;
+
+            if (!File.Exists(xmlPath))
+            {
+                return false;
+            }
+
+            var currOsAttr = RuntimeInformation.IsOSPlatform(OSPlatform.OSX) ? "osx" : 
+                             RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ? "windows" : 
+                             RuntimeInformation.IsOSPlatform(OSPlatform.Linux) ? "linux" : null;
+
+            XElement root = XElement.Load(xmlPath);
+            var map = (
+                from el in root.Elements("dllmap")
+                where (string)el.Attribute("dll") == originalLibName
+                let osAttr = (string)el.Attribute("os")
+                where (osAttr == null || osAttr == currOsAttr || (osAttr.StartsWith("!") && !osAttr.Contains(currOsAttr)))
+                select el
+            ).SingleOrDefault();
+
+            if (map != null)
+            {
+                mappedLibName = map.Attribute("target").Value;
+            }
+
+            return (mappedLibName != null);
+        }
+    }
+}