feat(hle): prefer loaded guest exports for selected registrations (#844)

Co-authored-by: Acelogic <miguelc4600@gmail.com>
2026-08-30 21:31:57 +08:00 · 2026-08-25 22:32:57 +02:00
parent 51e5480049
commit b226dca3df
9 changed files with 262 additions and 72 deletions
@@ -0,0 +1,60 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using SharpEmu.Core.Cpu.Native;
+using SharpEmu.HLE;
+using Xunit;
+
+namespace SharpEmu.Libs.Tests.Cpu;
+
+public sealed class DirectExecutionBackendLlePreferenceTests
+{
+    [Fact]
+    public void ExplicitLlePreference_AllowsNonKernelRegisteredExport()
+    {
+        var export = Export("libSceNpCppWebApi", preferLle: true);
+
+        Assert.True(DirectExecutionBackend.ShouldResolveRegisteredExportViaLle(
+            export,
+            preferLleForLibc: false));
+    }
+
+    [Fact]
+    public void ExplicitLlePreference_CannotOverrideKernelHleBoundary()
+    {
+        var export = Export("libKernel", preferLle: true);
+
+        Assert.False(DirectExecutionBackend.ShouldResolveRegisteredExportViaLle(
+            export,
+            preferLleForLibc: true));
+    }
+
+    [Fact]
+    public void RegisteredExportWithoutLlePreference_RemainsHle()
+    {
+        var export = Export("libSceNpCppWebApi", preferLle: false);
+
+        Assert.False(DirectExecutionBackend.ShouldResolveRegisteredExportViaLle(
+            export,
+            preferLleForLibc: false));
+    }
+
+    [Fact]
+    public void ExistingLibcPolicy_CanStillSelectRegisteredFirmwareExport()
+    {
+        var export = Export("libSceLibcInternal", preferLle: false);
+
+        Assert.True(DirectExecutionBackend.ShouldResolveRegisteredExportViaLle(
+            export,
+            preferLleForLibc: true));
+    }
+
+    private static ExportedFunction Export(string libraryName, bool preferLle) =>
+        new(
+            libraryName,
+            "Zxa0VhQVTsk",
+            "sceKernelWaitSema",
+            Generation.Gen5,
+            static _ => 0,
+            preferLle);
+}