A dozen changes; new HLEs, AV fixes, ELF loader fixes, new return codes, etc.

2026-07-21 18:36:13 +08:00 · 2026-03-14 20:38:25 +03:00
parent 028494a83b
commit 1f71c970d9
21 changed files with 2291 additions and 216 deletions
@@ -0,0 +1,78 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+using System.Runtime.InteropServices;
+using SharpEmu.HLE;
+
+namespace SharpEmu.Libs.LibcInternal;
+
+public static class LibcInternalExports
+{
+    private const ulong HeapTraceInfoSize = 32;
+    private const int HeapTraceTableEntryCount = 64;
+    private const int HeapTraceMaskOffset = 0;
+    private const int HeapTraceTableOffset = HeapTraceMaskOffset + sizeof(ulong);
+    private const int HeapTraceStorageSize = HeapTraceTableOffset + (HeapTraceTableEntryCount * sizeof(ulong));
+
+    private static readonly object _heapTraceGate = new();
+    private static nint _heapTraceStorage;
+
+    [SysAbiExport(
+        Nid = "NWtTN10cJzE",
+        ExportName = "LibcHeapGetTraceInfo",
+        Target = Generation.Gen4 | Generation.Gen5,
+        LibraryName = "LibcInternalExt")]
+    public static int LibcHeapGetTraceInfo(CpuContext ctx)
+    {
+        var infoAddress = ctx[CpuRegister.Rdi];
+        if (infoAddress == 0 || !ctx.TryReadUInt64(infoAddress, out var size) || size != HeapTraceInfoSize)
+        {
+            ctx[CpuRegister.Rax] = 0;
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_INVALID_ARGUMENT;
+        }
+
+        var storage = EnsureHeapTraceStorage();
+        if (storage == 0)
+        {
+            ctx[CpuRegister.Rax] = 0;
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        var maskAddress = unchecked((ulong)(storage + HeapTraceMaskOffset));
+        var tableAddress = unchecked((ulong)(storage + HeapTraceTableOffset));
+        if (!ctx.TryWriteUInt64(infoAddress + 16, maskAddress) ||
+            !ctx.TryWriteUInt64(infoAddress + 24, tableAddress))
+        {
+            ctx[CpuRegister.Rax] = 0;
+            return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
+        }
+
+        ctx[CpuRegister.Rax] = 0;
+        return (int)OrbisGen2Result.ORBIS_GEN2_OK;
+    }
+
+    private static nint EnsureHeapTraceStorage()
+    {
+        lock (_heapTraceGate)
+        {
+            if (_heapTraceStorage != 0)
+            {
+                return _heapTraceStorage;
+            }
+
+            var storage = Marshal.AllocHGlobal(HeapTraceStorageSize);
+            if (storage == 0)
+            {
+                return 0;
+            }
+
+            unsafe
+            {
+                NativeMemory.Clear((void*)storage, (nuint)HeapTraceStorageSize);
+            }
+
+            _heapTraceStorage = storage;
+            return storage;
+        }
+    }
+}