From a09e2eb65afd598069f94a0a377cad347d771f44 Mon Sep 17 00:00:00 2001
From: georgemoralis <giorgosmrls@gmail.com>
Date: Tue, 23 May 2023 07:48:25 +0300
Subject: [PATCH] initial work on linker

---
 CMakeLists.txt          |  9 ++++++++-
 src/Core/PS4/Linker.cpp | 16 ++++++++++++++++
 src/Core/PS4/Linker.h   | 17 +++++++++++++++++
 src/Util/Singleton.h    | 27 +++++++++++++++++++++++++++
 4 files changed, 68 insertions(+), 1 deletion(-)
 create mode 100644 src/Core/PS4/Linker.cpp
 create mode 100644 src/Core/PS4/Linker.h
 create mode 100644 src/Util/Singleton.h

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3b08cb04..71e31bbe 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,7 +26,14 @@ add_executable(shadps4
     src/Loader/Elf.cpp
     src/Loader/Elf.h
     src/GUI/ElfViewer.cpp
-    src/GUI/ElfViewer.h "src/Util/Log.h" "src/Util/Log.cpp" "src/Core/Memory.cpp" "src/Core/Memory.h")
+    src/GUI/ElfViewer.h 
+    src/Util/Log.h
+    src/Util/Log.cpp
+    src/Core/Memory.cpp
+    src/Core/Memory.h
+    src/Core/PS4/Linker.cpp
+    src/Core/PS4/Linker.h
+     "src/Util/Singleton.h")
 
 find_package(OpenGL REQUIRED)
 
diff --git a/src/Core/PS4/Linker.cpp b/src/Core/PS4/Linker.cpp
new file mode 100644
index 00000000..fa66ed3d
--- /dev/null
+++ b/src/Core/PS4/Linker.cpp
@@ -0,0 +1,16 @@
+#include "Linker.h"
+
+Linker::Linker()
+{
+}
+
+Linker::~Linker()
+{
+}
+
+Module* Linker::LoadModule(const std::string& elf_name)
+{
+	auto* m = new Module;
+
+	return m;
+}
\ No newline at end of file
diff --git a/src/Core/PS4/Linker.h b/src/Core/PS4/Linker.h
new file mode 100644
index 00000000..6543e648
--- /dev/null
+++ b/src/Core/PS4/Linker.h
@@ -0,0 +1,17 @@
+#pragma once
+#include "../../Loader/Elf.h"
+
+/*this struct keeps neccesary info about loaded modules.Main executeable is included too as well*/
+struct Module
+{
+	Elf* elf = nullptr;
+};
+
+class Linker
+{
+public:
+	Linker();
+	virtual ~Linker();
+
+	Module* LoadModule(const std::string& elf_name);
+};
\ No newline at end of file
diff --git a/src/Util/Singleton.h b/src/Util/Singleton.h
new file mode 100644
index 00000000..ef5228ba
--- /dev/null
+++ b/src/Util/Singleton.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <cstdlib>
+#include <new>
+
+template <class T>
+class Singleton
+{
+public:
+	static T* Instance()
+	{
+		if (!m_instance)
+		{
+			m_instance = static_cast<T*>(std::malloc(sizeof(T)));
+			new (m_instance) T;
+		}
+
+		return m_instance;
+	}
+
+protected:
+	Singleton();
+	~Singleton();
+
+private:
+	static inline T* m_instance = nullptr;
+};
\ No newline at end of file