Dnspy/Extensions/dnSpy.Debugger/dnSpy.Debugger.DotNet/Dialogs/DebugProgram/DotNetGenericDebugEngineGuidProvider.cs
2021-09-20 18:20:01 +02:00

75 lines
2.5 KiB
C#

/*
Copyright (C) 2014-2019 de4dot@gmail.com
This file is part of dnSpy
dnSpy is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dnSpy is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dnSpy. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.IO;
using dnlib.DotNet;
using dnlib.PE;
using dnSpy.Contracts.Debugger.StartDebugging;
namespace dnSpy.Debugger.DotNet.Dialogs.DebugProgram {
[ExportGenericDebugEngineGuidProvider(PredefinedGenericDebugEngineGuidProviderOrders.DotNetAny)]
sealed class DotNetGenericDebugEngineGuidProvider : GenericDebugEngineGuidProvider {
public override Guid? GetEngineGuid(string filename) {
if (!File.Exists(filename))
return null;
if (!PortableExecutableFileHelpers.IsExecutable(filename))
return null;
try {
using (var peImage = new PEImage(filename)) {
if ((peImage.ImageNTHeaders.FileHeader.Characteristics & Characteristics.Dll) != 0)
return null;
var dd = peImage.ImageNTHeaders.OptionalHeader.DataDirectories[14];
if (dd.VirtualAddress == 0 || dd.Size < 0x48)
return null;
using (var mod = ModuleDefMD.Load(peImage, new ModuleCreationOptions())) {
var asm = mod.Assembly;
if (asm is null)
return null;
var defaultGuid = PredefinedGenericDebugEngineGuids.DotNetFramework;
var ca = asm.CustomAttributes.Find("System.Runtime.Versioning.TargetFrameworkAttribute");
if (ca is null)
return defaultGuid;
if (ca.ConstructorArguments.Count != 1)
return defaultGuid;
string s = ca.ConstructorArguments[0].Value as UTF8String;
if (s is null)
return defaultGuid;
// See corclr/src/mscorlib/src/System/Runtime/Versioning/BinaryCompatibility.cs
var values = s.Split(new char[] { ',' });
if (values.Length >= 2 && values.Length <= 3) {
var framework = values[0].Trim();
if (framework == ".NETCoreApp")
return PredefinedGenericDebugEngineGuids.DotNet;
}
return defaultGuid;
}
}
}
catch {
}
return null;
}
}
}