From 540c21d38239a1ed70ff42db7208d40e4afe1122 Mon Sep 17 00:00:00 2001
From: georgemoralis <giorgosmrls@gmail.com>
Date: Mon, 25 Mar 2024 09:26:59 +0200
Subject: [PATCH] config option to enable libc lle

---
 src/common/config.cpp           | 13 +++++++++++++
 src/common/config.h             |  1 +
 src/core/hle/libraries/libs.cpp |  5 ++++-
 src/main.cpp                    | 19 +++++++++++++++++++
 4 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/src/common/config.cpp b/src/common/config.cpp
index 96c71c4f..72a46ddf 100644
--- a/src/common/config.cpp
+++ b/src/common/config.cpp
@@ -15,7 +15,11 @@ u32 screenHeight = 720;
 std::string logFilter;
 std::string logType = "sync";
 bool isDebugDump = false;
+bool isLibc = true;
 
+bool isLleLibc() {
+    return isLibc;
+}
 bool isNeoMode() {
     return isNeo;
 }
@@ -84,6 +88,14 @@ void load(const std::filesystem::path& path) {
             isDebugDump = toml::find_or<toml::boolean>(debug, "DebugDump", false);
         }
     }
+    if (data.contains("LLE")) {
+        auto generalResult = toml::expect<toml::value>(data.at("LLE"));
+        if (generalResult.is_ok()) {
+            auto general = generalResult.unwrap();
+
+            isLibc = toml::find_or<toml::boolean>(general, "libc", true);
+        }
+    }
 }
 void save(const std::filesystem::path& path) {
     toml::basic_value<toml::preserve_comments> data;
@@ -110,6 +122,7 @@ void save(const std::filesystem::path& path) {
     data["GPU"]["screenWidth"] = screenWidth;
     data["GPU"]["screenHeight"] = screenHeight;
     data["Debug"]["DebugDump"] = isDebugDump;
+    data["LLE"]["libc"] = isLibc;
 
     std::ofstream file(path, std::ios::out);
     file << data;
diff --git a/src/common/config.h b/src/common/config.h
index 114ef55f..b69c43b4 100644
--- a/src/common/config.h
+++ b/src/common/config.h
@@ -18,5 +18,6 @@ u32 getScreenWidth();
 u32 getScreenHeight();
 
 bool debugDump();
+bool isLleLibc();
 
 }; // namespace Config
diff --git a/src/core/hle/libraries/libs.cpp b/src/core/hle/libraries/libs.cpp
index 28594471..88184fe9 100644
--- a/src/core/hle/libraries/libs.cpp
+++ b/src/core/hle/libraries/libs.cpp
@@ -1,6 +1,7 @@
 // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#include <common/config.h>
 #include "core/PS4/HLE/Graphics/video_out.h"
 #include "core/hle/libraries/libc/libc.h"
 #include "core/hle/libraries/libkernel/libkernel.h"
@@ -20,7 +21,9 @@ void InitHLELibs(Core::Loader::SymbolsResolver* sym) {
     HLE::Libs::Graphics::VideoOut::videoOutRegisterLib(sym);
     Core::Libraries::LibSceGnmDriver::LibSceGnmDriver_Register(sym);
     OldLibraries::LibPad::padSymbolsRegister(sym);
-    Core::Libraries::LibC::libcSymbolsRegister(sym);
+    if (!Config::isLleLibc()) {
+        Core::Libraries::LibC::libcSymbolsRegister(sym);
+    }
 
     // new libraries folder from autogen
     Libraries::UserService::RegisterlibSceUserService(sym);
diff --git a/src/main.cpp b/src/main.cpp
index ec236bd3..b43252bb 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -9,6 +9,7 @@
 #include <cstdio>
 #include <thread>
 
+#include <core/hle/libraries/libc/libc.h>
 #include <core/hle/libraries/libkernel/thread_management.h>
 #include "common/config.h"
 #include "common/discord.h"
@@ -49,6 +50,24 @@ int main(int argc, char* argv[]) {
     OldLibraries::InitHLELibs(&linker->getHLESymbols());
     Core::InstallTlsHandler();
     linker->LoadModule(path);
+    // check if there is a libc.prx in sce_module folder
+    bool found = false;
+    if (Config::isLleLibc()) {
+        std::filesystem::path sce_module_folder =
+            std::string(p.parent_path().string() + "\\sce_module");
+        if (std::filesystem::exists(sce_module_folder)) {
+            for (const auto& entry : std::filesystem::directory_iterator(sce_module_folder)) {
+                if (entry.path().filename() == "libc.prx") {
+                    // found = true;
+                    printf("%s\n", entry.path().string().c_str());
+                }
+            }
+        }
+    }
+    if (!found) // load HLE libc
+    {
+        Core::Libraries::LibC::libcSymbolsRegister(&linker->getHLESymbols());
+    }
     std::jthread mainthread([linker](std::stop_token stop_token, void*) { linker->Execute(); },
                             nullptr);
     Discord::RPC discordRPC;