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Ryujinx/Ryujinx.Memory.Tests/MockVirtualMemoryManager.cs
riperiperi 14ce9e1567
Move partial unmap handler to the native signal handler (#3437)
* Initial commit with a lot of testing stuff.

* Partial Unmap Cleanup Part 1

* Fix some minor issues, hopefully windows tests.

* Disable partial unmap tests on macos for now

Weird issue.

* Goodbye magic number

* Add COMPlus_EnableAlternateStackCheck for tests

`COMPlus_EnableAlternateStackCheck` is needed for NullReferenceException handling to work on linux after registering the signal handler, due to how dotnet registers its own signal handler.

* Address some feedback

* Force retry when memory is mapped in memory tracking

This case existed before, but returning `false` no longer retries, so it would crash immediately after unprotecting the memory... Now, we return `true` to deliberately retry.

This case existed before (was just broken by this change) and I don't really want to look into fixing the issue right now. Technically, this means that on guest code partial unmaps will retry _due to this_ rather than hitting the handler. I don't expect this to cause any issues.

This should fix random crashes in Xenoblade Chronicles 2.

* Use IsRangeMapped

* Suppress MockMemoryManager.UnmapEvent warning

This event is not signalled by the mock memory manager.

* Remove 4kb mapping
2022-07-29 19:16:29 -03:00

92 lines
2.4 KiB
C#

using Ryujinx.Memory.Range;
using System;
using System.Collections.Generic;
namespace Ryujinx.Memory.Tests
{
public class MockVirtualMemoryManager : IVirtualMemoryManager
{
public bool NoMappings = false;
public event Action<ulong, ulong, MemoryPermission> OnProtect;
public MockVirtualMemoryManager(ulong size, int pageSize)
{
}
public void Map(ulong va, ulong pa, ulong size)
{
throw new NotImplementedException();
}
public void Unmap(ulong va, ulong size)
{
throw new NotImplementedException();
}
public T Read<T>(ulong va) where T : unmanaged
{
throw new NotImplementedException();
}
public void Read(ulong va, Span<byte> data)
{
throw new NotImplementedException();
}
public void Write<T>(ulong va, T value) where T : unmanaged
{
throw new NotImplementedException();
}
public void Write(ulong va, ReadOnlySpan<byte> data)
{
throw new NotImplementedException();
}
public ReadOnlySpan<byte> GetSpan(ulong va, int size, bool tracked = false)
{
throw new NotImplementedException();
}
public WritableRegion GetWritableRegion(ulong va, int size, bool tracked = false)
{
throw new NotImplementedException();
}
public ref T GetRef<T>(ulong va) where T : unmanaged
{
throw new NotImplementedException();
}
IEnumerable<MemoryRange> IVirtualMemoryManager.GetPhysicalRegions(ulong va, ulong size)
{
return NoMappings ? new MemoryRange[0] : new MemoryRange[] { new MemoryRange(va, size) };
}
public bool IsMapped(ulong va)
{
return true;
}
public bool IsRangeMapped(ulong va, ulong size)
{
return true;
}
public ulong GetPhysicalAddress(ulong va)
{
throw new NotImplementedException();
}
public void SignalMemoryTracking(ulong va, ulong size, bool write, bool precise = false)
{
throw new NotImplementedException();
}
public void TrackingReprotect(ulong va, ulong size, MemoryPermission protection)
{
OnProtect?.Invoke(va, size, protection);
}
}
}