87 lines
2.7 KiB
C#
87 lines
2.7 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.ComponentModel.Composition;
|
||
|
|
using System.Diagnostics;
|
||
|
|
using System.IO;
|
||
|
|
using Microsoft.Diagnostics.Runtime;
|
||
|
|
|
||
|
|
namespace dnSpy.Debugger.DotNet.CorDebug.DAC {
|
||
|
|
abstract class ClrDacProvider {
|
||
|
|
public abstract ClrDac Create(int pid, string clrPath, IClrDacDebugger clrDacDebugger);
|
||
|
|
}
|
||
|
|
|
||
|
|
[Export(typeof(ClrDacProvider))]
|
||
|
|
sealed class ClrDacProviderImpl : ClrDacProvider {
|
||
|
|
public override ClrDac Create(int pid, string clrPath, IClrDacDebugger clrDacDebugger) {
|
||
|
|
if (clrPath is null)
|
||
|
|
throw new ArgumentNullException(nameof(clrPath));
|
||
|
|
var clrDac = CreateCore(pid, clrPath, clrDacDebugger);
|
||
|
|
Debug2.Assert(clrDac is not null);
|
||
|
|
return clrDac ?? NullClrDac.Instance;
|
||
|
|
}
|
||
|
|
|
||
|
|
ClrDac? CreateCore(int pid, string clrPath, IClrDacDebugger clrDacDebugger) {
|
||
|
|
DataTarget? dataTarget = null;
|
||
|
|
bool failed = true;
|
||
|
|
try {
|
||
|
|
// The timeout isn't used if Passive is used
|
||
|
|
dataTarget = DataTarget.AttachToProcess(pid, 0, AttachFlag.Passive);
|
||
|
|
var clrInfo = GetClrInfo(dataTarget, clrPath);
|
||
|
|
if (clrInfo is null)
|
||
|
|
return null;
|
||
|
|
|
||
|
|
// Use this overload to make sure it doesn't try to download the dac file which
|
||
|
|
// will block this thread for several seconds or much longer.
|
||
|
|
var clrRuntime = clrInfo.CreateRuntime(clrInfo.LocalMatchingDac);
|
||
|
|
|
||
|
|
var clrDac = new ClrDacImpl(dataTarget, clrRuntime, clrDacDebugger);
|
||
|
|
failed = false;
|
||
|
|
return clrDac;
|
||
|
|
}
|
||
|
|
catch (ClrDiagnosticsException) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
catch (IOException) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
catch (InvalidOperationException) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
finally {
|
||
|
|
if (failed)
|
||
|
|
dataTarget?.Dispose();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static ClrInfo? GetClrInfo(DataTarget dt, string clrPath) {
|
||
|
|
foreach (var clrInfo in dt.ClrVersions) {
|
||
|
|
if (!StringComparer.OrdinalIgnoreCase.Equals(clrInfo.ModuleInfo.FileName, clrPath))
|
||
|
|
continue;
|
||
|
|
Debug.Assert(File.Exists(clrInfo.LocalMatchingDac));
|
||
|
|
if (!File.Exists(clrInfo.LocalMatchingDac))
|
||
|
|
continue;
|
||
|
|
return clrInfo;
|
||
|
|
}
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|