52 lines
2.1 KiB
C#
52 lines
2.1 KiB
C#
// Copyright (C) 2026 SharpEmu Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
using System.Collections;
|
|
using System.Reflection;
|
|
using SharpEmu.Core.Cpu.Native;
|
|
using SharpEmu.HLE;
|
|
using Xunit;
|
|
|
|
namespace SharpEmu.Libs.Tests.Cpu;
|
|
|
|
public sealed class GuestThreadStackBoundsTests
|
|
{
|
|
[NativeX64Fact]
|
|
public void SchedulerReturnsAuthoritativeBoundsAcrossTheFullSlotWindow()
|
|
{
|
|
const BindingFlags privateInstance = BindingFlags.NonPublic | BindingFlags.Instance;
|
|
const ulong stackSize = 0x20_0000;
|
|
const ulong stackStride = 0x100_0000;
|
|
var highestStack = OperatingSystem.IsWindows()
|
|
? 0x0000_7FFF_E000_0000UL
|
|
: 0x0000_6FFF_E000_0000UL;
|
|
var backendType = typeof(DirectExecutionBackend);
|
|
var threadType = backendType.GetNestedType("GuestThreadState", BindingFlags.NonPublic)!;
|
|
var modules = new ModuleManager();
|
|
modules.Freeze();
|
|
using var backend = new DirectExecutionBackend(modules);
|
|
var gate = backendType.GetField("_guestThreadGate", privateInstance)!.GetValue(backend)!;
|
|
var threads = (IDictionary)backendType.GetField("_guestThreads", privateInstance)!.GetValue(backend)!;
|
|
|
|
foreach (var slot in new[] { 0, 48, 56, 1023 })
|
|
{
|
|
var handle = 0x1000UL + (ulong)slot;
|
|
var expectedBase = highestStack - ((ulong)slot * stackStride);
|
|
var thread = Activator.CreateInstance(threadType)!;
|
|
threadType.GetProperty("ThreadHandle")!.SetValue(thread, handle);
|
|
threadType.GetProperty("StackBase")!.SetValue(thread, expectedBase);
|
|
threadType.GetProperty("StackSize")!.SetValue(thread, stackSize);
|
|
lock (gate)
|
|
threads.Add(handle, thread);
|
|
|
|
Assert.True(backend.TryGetGuestThreadStackBounds(handle, out var actualBase, out var actualSize));
|
|
Assert.Equal(expectedBase, actualBase);
|
|
Assert.Equal(stackSize, actualSize);
|
|
}
|
|
|
|
Assert.False(backend.TryGetGuestThreadStackBounds(0xDEAD, out var missingBase, out var missingSize));
|
|
Assert.Equal(0UL, missingBase);
|
|
Assert.Equal(0UL, missingSize);
|
|
}
|
|
}
|