mcs/class/corlib/System.Runtime.InteropServices.RuntimeInformation/RuntimeInformation.cs

   1 //
   2 // RuntimeInformation.cs
   3 //
   4 // Author:
   5 //   Alexander Köplinger (alexander.koeplinger@xamarin.com)
   6 //
   7 // (C) 2016 Xamarin, Inc.
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System.IO;
  32 using System.Reflection;
  33 using System.Runtime.CompilerServices;
  34
  35 namespace System.Runtime.InteropServices
  36 {
  37         public static class RuntimeInformation
  38         {
  39                 static readonly Architecture _osArchitecture;
  40                 static readonly Architecture _processArchitecture;
  41                 static readonly OSPlatform _osPlatform;
  42
  43                 static RuntimeInformation ()
  44                 {
  45                         // we can use the runtime's compiled config options for DllMaps here
  46                         // process architecure for us is runtime architecture
  47                         // see for values: mono-config.c
  48                         var runtimeArchitecture = GetRuntimeArchitecture ();
  49                         var osName = GetOSName ();
  50
  51                         // check OS/process architecture
  52                         switch (runtimeArchitecture) {
  53                         case "arm":
  54                                 _osArchitecture = Environment.Is64BitOperatingSystem ? Architecture.Arm64 : Architecture.Arm;
  55                                 _processArchitecture = Architecture.Arm;
  56                                 break;
  57                         case "armv8":
  58                                 _osArchitecture = Environment.Is64BitOperatingSystem ? Architecture.Arm64 : Architecture.Arm;
  59                                 _processArchitecture = Architecture.Arm64;
  60                                 break;
  61                         case "x86":
  62                                 _osArchitecture = Environment.Is64BitOperatingSystem ? Architecture.X64 : Architecture.X86;
  63                                 _processArchitecture = Architecture.X86;
  64                                 break;
  65                         case "x86-64":
  66                                 _osArchitecture = Environment.Is64BitOperatingSystem ? Architecture.X64 : Architecture.X86;
  67                                 _processArchitecture = Architecture.X64;
  68                                 break;
  69                         // upstream only has these values; try to pretend we're x86 if nothing matches
  70                         // want more? bug: https://github.com/dotnet/corefx/issues/30706
  71                         default:
  72                                 _osArchitecture = Environment.Is64BitOperatingSystem ? Architecture.X64 : Architecture.X86;
  73                                 _processArchitecture = Environment.Is64BitProcess ? Architecture.X64 : Architecture.X86;
  74                                 break;
  75                         }
  76
  77                         // check OS platform
  78                         switch (osName) {
  79                                 case "linux":
  80                                         _osPlatform = OSPlatform.Linux;
  81                                         break;
  82                                 case "osx":
  83                                         _osPlatform = OSPlatform.OSX;
  84                                         break;
  85                                 case "windows":
  86                                         _osPlatform = OSPlatform.Windows;
  87                                         break;
  88                                 case "solaris":
  89                                         _osPlatform = OSPlatform.Create ("SOLARIS");
  90                                         break;
  91                                 case "freebsd":
  92                                         _osPlatform = OSPlatform.Create ("FREEBSD");
  93                                         break;
  94                                 case "netbsd":
  95                                         _osPlatform = OSPlatform.Create ("NETBSD");
  96                                         break;
  97                                 case "openbsd":
  98                                         _osPlatform = OSPlatform.Create ("OPENBSD");
  99                                         break;
 100                                 case "aix":
 101                                         _osPlatform = OSPlatform.Create ("AIX");
 102                                         break;
 103                                 case "hpux":
 104                                         _osPlatform = OSPlatform.Create ("HPUX");
 105                                         break;
 106                                 case "haiku":
 107                                         _osPlatform = OSPlatform.Create ("HAIKU");
 108                                         break;
 109                                 case "wasm":
 110                                         _osPlatform = OSPlatform.Create ("WEBASSEMBLY");
 111                                         break;
 112                                 default:
 113                                         _osPlatform = OSPlatform.Create ("UNKNOWN");
 114                                         break;
 115                         }
 116                 }
 117
 118                 /* gets the runtime's arch from the value it uses for DllMap */
 119                 [MethodImpl (MethodImplOptions.InternalCall)]
 120                 static extern string GetRuntimeArchitecture ();
 121
 122                 /* gets the runtime's OS from the value it uses for DllMap */
 123                 [MethodImpl (MethodImplOptions.InternalCall)]
 124                 static extern string GetOSName ();
 125
 126                 public static string FrameworkDescription {
 127                         get {
 128                                 return "Mono " + Mono.Runtime.GetDisplayName ();
 129                         }
 130                 }
 131
 132                 public static bool IsOSPlatform (OSPlatform osPlatform)
 133                 {
 134                         return _osPlatform == osPlatform;
 135                 }
 136
 137                 public static string OSDescription
 138                 {
 139                         get
 140                         {
 141 #if WASM
 142                                 return "web"; //yes, hardcoded as right now we don't really support other environments
 143 #else
 144                                 return Environment.OSVersion.VersionString;
 145 #endif
 146                         }
 147                 }
 148
 149                 public static Architecture OSArchitecture
 150                 {
 151                         get
 152                         {
 153                                 return _osArchitecture;
 154                         }
 155                 }
 156
 157                 public static Architecture ProcessArchitecture
 158                 {
 159                         get
 160                         {
 161                                 return _processArchitecture;
 162                         }
 163                 }
 164         }
 165 }