core/libraries: Initial fiber implementation (#1255)

src/core/libraries/fiber/fiber.h

@@ -0,0 +1,83 @@
+// SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include "common/assert.h"
+#include "common/types.h"
+
+namespace Core::Loader {
+class SymbolsResolver;
+}
+namespace Libraries::Fiber {
+
+#define ORBIS_FIBER_MAX_NAME_LENGTH (31)
+
+typedef void PS4_SYSV_ABI (*SceFiberEntry)(u64 argOnInitialize, u64 argOnRun);
+
+enum FiberState : u32 {
+    None = 0u,
+    Init = 1u,
+    Run = 2u,
+    Suspend = 3u,
+};
+
+struct SceFiber {
+    u64 signature;
+    FiberState state;
+    SceFiberEntry entry;
+
+    u64 argOnInitialize;
+
+    u64 argRun;
+    u64* pArgRun;
+
+    u64 argReturn;
+    u64* pArgReturn;
+
+    u64 sizeContext;
+
+    char name[ORBIS_FIBER_MAX_NAME_LENGTH];
+    void* handle;
+};
+static_assert(sizeof(SceFiber) <= 256);
+
+struct SceFiberInfo {
+    u64 size;
+    SceFiberEntry entry;
+    u64 argOnInitialize;
+    void* addrContext;
+    u64 sizeContext;
+    char name[ORBIS_FIBER_MAX_NAME_LENGTH + 1];
+    u64 sizeContextMargin;
+};
+static_assert(sizeof(SceFiberInfo) <= 128);
+
+typedef void* SceFiberOptParam;
+
+s32 PS4_SYSV_ABI sceFiberInitialize(SceFiber* fiber, const char* name, SceFiberEntry entry,
+                                    u64 argOnInitialize, void* addrContext, u64 sizeContext,
+                                    const SceFiberOptParam* optParam);
+
+s32 PS4_SYSV_ABI sceFiberOptParamInitialize(SceFiberOptParam* optParam);
+
+s32 PS4_SYSV_ABI sceFiberFinalize(SceFiber* fiber);
+
+s32 PS4_SYSV_ABI sceFiberRun(SceFiber* fiber, u64 argOnRunTo, u64* argOnReturn);
+
+s32 PS4_SYSV_ABI sceFiberSwitch(SceFiber* fiber, u64 argOnRunTo, u64* argOnRun);
+
+s32 PS4_SYSV_ABI sceFiberGetSelf(SceFiber** fiber);
+
+s32 PS4_SYSV_ABI sceFiberReturnToThread(u64 argOnReturn, u64* argOnRun);
+
+s32 PS4_SYSV_ABI sceFiberGetInfo(SceFiber* fiber, SceFiberInfo* fiberInfo);
+
+s32 PS4_SYSV_ABI sceFiberStartContextSizeCheck(u32 flags);
+
+s32 PS4_SYSV_ABI sceFiberStopContextSizeCheck(void);
+
+s32 PS4_SYSV_ABI sceFiberRename(SceFiber* fiber, const char* name);
+
+void RegisterlibSceFiber(Core::Loader::SymbolsResolver* sym);
+} // namespace Libraries::Fiber