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Move partial unmap handler to the native signal handler (#3437)

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* 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
This commit is contained in:
riperiperi 2022-07-30 00:16:29 +02:00 • committed by GitHub
parent 952d013c67
commit 14ce9e1567
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24 changed files with 1355 additions and 391 deletions
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16
Ryujinx.Memory.Tests/Tests.cs
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@ -38,9 +38,15 @@ namespace Ryujinx.Memory.Tests
Assert.AreEqual(Marshal.ReadInt32(_memoryBlock.Pointer, 0x2040), 0xbadc0de);
}
[Test, Explicit]
[Test]
public void Test_Alias()
{
if (OperatingSystem.IsMacOS())
{
// Memory aliasing tests fail on CI at the moment.
return;
}
using MemoryBlock backing = new MemoryBlock(0x10000, MemoryAllocationFlags.Mirrorable);
using MemoryBlock toAlias = new MemoryBlock(0x10000, MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible);
@ -51,9 +57,15 @@ namespace Ryujinx.Memory.Tests
Assert.AreEqual(Marshal.ReadInt32(backing.Pointer, 0x1000), 0xbadc0de);
}
[Test, Explicit]
[Test]
public void Test_AliasRandom()
{
if (OperatingSystem.IsMacOS())
{
// Memory aliasing tests fail on CI at the moment.
return;
}
using MemoryBlock backing = new MemoryBlock(0x80000, MemoryAllocationFlags.Mirrorable);
using MemoryBlock toAlias = new MemoryBlock(0x80000, MemoryAllocationFlags.Reserve | MemoryAllocationFlags.ViewCompatible);