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https://github.com/par274/sharpemu.git
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initial commit
This commit is contained in:
ParantezTech
@@ -0,0 +1,373 @@
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// Copyright (C) 2026 SharpEmu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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using SharpEmu.HLE;
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using System.Threading;
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namespace SharpEmu.Libs.Kernel;
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public static class KernelExports
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{
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private static long _nextThreadId = 1;
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private static int _nextFileDescriptor = 2;
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private static readonly object _cxaGate = new();
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private static readonly List<CxaDestructorEntry> _cxaDestructors = new();
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private readonly record struct CxaDestructorEntry(
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ulong Function,
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ulong Argument,
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ulong ModuleHandle);
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[SysAbiExport(
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Nid = "WB66evu8bsU",
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ExportName = "sceKernelGetCompiledSdkVersion",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int KernelGetCompiledSdkVersion(CpuContext ctx)
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{
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_ = ctx;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "uMei1W9uyNo",
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ExportName = "exit",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int Exit(CpuContext ctx)
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{
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_ = ctx;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "XKRegsFpEpk",
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ExportName = "catchReturnFromMain",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int CatchReturnFromMain(CpuContext ctx)
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{
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var status = unchecked((int)ctx[CpuRegister.Rdi]);
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Console.Error.WriteLine($"[LOADER][INFO] catchReturnFromMain(status={status})");
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "bzQExy189ZI",
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ExportName = "_init_env",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int InitEnv(CpuContext ctx)
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{
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "8G2LB+A3rzg",
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ExportName = "atexit",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int Atexit(CpuContext ctx)
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{
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "tsvEmnenz48",
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ExportName = "__cxa_atexit",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int CxaAtexit(CpuContext ctx)
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{
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var destructorFunction = ctx[CpuRegister.Rdi];
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var destructorArgument = ctx[CpuRegister.Rsi];
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var moduleHandle = ctx[CpuRegister.Rdx];
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if (destructorFunction == 0)
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{
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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lock (_cxaGate)
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{
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_cxaDestructors.Add(new CxaDestructorEntry(
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destructorFunction,
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destructorArgument,
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moduleHandle));
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}
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "H2e8t5ScQGc",
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ExportName = "__cxa_finalize",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int CxaFinalize(CpuContext ctx)
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{
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var moduleHandle = ctx[CpuRegister.Rdi];
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lock (_cxaGate)
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{
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if (moduleHandle == 0)
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{
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_cxaDestructors.Clear();
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}
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else
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{
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for (var i = _cxaDestructors.Count - 1; i >= 0; i--)
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{
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if (_cxaDestructors[i].ModuleHandle == moduleHandle)
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{
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_cxaDestructors.RemoveAt(i);
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}
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}
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}
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}
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "kbw4UHHSYy0",
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ExportName = "__pthread_cxa_finalize",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int PthreadCxaFinalize(CpuContext ctx)
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{
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_ = ctx;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "6Z83sYWFlA8",
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ExportName = "_exit",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int UnderscoreExit(CpuContext ctx)
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{
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_ = ctx;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "Ac86z8q7T8A",
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ExportName = "sceKernelExitSblock",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int KernelExitSblock(CpuContext ctx)
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{
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_ = ctx;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "6UgtwV+0zb4",
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ExportName = "scePthreadCreate",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int PthreadCreate(CpuContext ctx)
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{
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var threadIdAddress = ctx[CpuRegister.Rdi];
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var nextThreadId = unchecked((ulong)Interlocked.Increment(ref _nextThreadId));
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if (threadIdAddress != 0 && !ctx.TryWriteUInt64(threadIdAddress, nextThreadId))
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{
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return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
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}
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "OxhIB8LB-PQ",
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ExportName = "pthread_create",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int PosixPthreadCreate(CpuContext ctx)
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{
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return PthreadCreate(ctx);
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}
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[SysAbiExport(
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Nid = "onNY9Byn-W8",
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ExportName = "scePthreadJoin",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int PthreadJoin(CpuContext ctx)
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{
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var returnValueAddress = ctx[CpuRegister.Rsi];
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if (returnValueAddress != 0 && !ctx.TryWriteUInt64(returnValueAddress, 0))
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{
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return (int)OrbisGen2Result.ORBIS_GEN2_ERROR_MEMORY_FAULT;
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}
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "h9CcP3J0oVM",
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ExportName = "pthread_join",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int PosixPthreadJoin(CpuContext ctx)
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{
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return PthreadJoin(ctx);
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}
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[SysAbiExport(
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Nid = "wuCroIGjt2g",
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ExportName = "open",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int Open(CpuContext ctx)
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{
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ctx[CpuRegister.Rax] = unchecked((ulong)Interlocked.Increment(ref _nextFileDescriptor));
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "1G3lF1Gg1k8",
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ExportName = "sceKernelOpen",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libKernel")]
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public static int KernelOpen(CpuContext ctx)
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{
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ctx[CpuRegister.Rax] = unchecked((ulong)Interlocked.Increment(ref _nextFileDescriptor));
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "hcuQgD53UxM",
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ExportName = "printf",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int Printf(CpuContext ctx)
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{
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ulong fmtPtr = ctx[CpuRegister.Rdi];
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string fmt = ReadCString(ctx, fmtPtr, 4096);
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ulong[] args =
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{
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ctx[CpuRegister.Rsi],
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ctx[CpuRegister.Rdx],
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ctx[CpuRegister.Rcx],
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ctx[CpuRegister.R8],
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ctx[CpuRegister.R9],
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};
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int argIndex = 0;
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var sb = new System.Text.StringBuilder(fmt.Length + 64);
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for (int i = 0; i < fmt.Length; i++)
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{
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char ch = fmt[i];
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if (ch != '%')
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{
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sb.Append(ch);
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continue;
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}
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if (i + 1 < fmt.Length && fmt[i + 1] == '%')
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{
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sb.Append('%');
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i++;
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continue;
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}
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int j = i + 1;
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while (j < fmt.Length && "-+ #0".IndexOf(fmt[j]) >= 0) j++;
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while (j < fmt.Length && char.IsDigit(fmt[j])) j++;
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if (j < fmt.Length && fmt[j] == '.')
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{
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j++;
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while (j < fmt.Length && char.IsDigit(fmt[j])) j++;
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}
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if (j >= fmt.Length) break;
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char spec = fmt[j];
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i = j;
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ulong a = argIndex < args.Length ? args[argIndex++] : 0;
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switch (spec)
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{
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case 's':
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sb.Append(a == 0 ? "(null)" : ReadCString(ctx, a, 4096));
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break;
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case 'd':
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case 'i':
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sb.Append(unchecked((int)a));
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break;
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case 'u':
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sb.Append(unchecked((uint)a));
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break;
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case 'x':
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sb.Append(unchecked((uint)a).ToString("x"));
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break;
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case 'p':
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sb.Append("0x").Append(a.ToString("x16"));
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break;
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default:
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sb.Append('%').Append(spec);
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break;
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}
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}
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string outStr = sb.ToString();
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Console.WriteLine($"[DEBUG][PRINF] {outStr}");
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ctx[CpuRegister.Rax] = (ulong)outStr.Length;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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[SysAbiExport(
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Nid = "EMutwaQ34Jo",
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ExportName = "perror",
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Target = Generation.Gen4 | Generation.Gen5,
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LibraryName = "libc")]
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public static int Perror(CpuContext ctx)
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{
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ulong sPtr = ctx[CpuRegister.Rdi];
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string msg;
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if (sPtr == 0)
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{
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msg = "perror(NULL)";
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}
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else
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{
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msg = ReadCString(ctx, sPtr, 2048);
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msg = $"perror(\"{msg}\")";
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}
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Console.WriteLine(msg);
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ctx[CpuRegister.Rax] = 0;
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return (int)OrbisGen2Result.ORBIS_GEN2_OK;
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}
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private static string ReadCString(CpuContext ctx, ulong address, int maxLen)
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{
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Span<byte> buf = stackalloc byte[maxLen];
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if (!ctx.Memory.TryRead(address, buf))
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return $"<unreadable 0x{address:X16}>";
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int len = 0;
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while (len < buf.Length && buf[len] != 0) len++;
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try { return System.Text.Encoding.UTF8.GetString(buf.Slice(0, len)); }
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catch { return System.Text.Encoding.ASCII.GetString(buf.Slice(0, len)); }
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}
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}
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