singleton: Use unique_ptr

src/Core/PS4/Linker.cpp

@@ -500,7 +500,6 @@ static void relocate(u32 idx, elf_relocation* rel, Module* m, bool isJmpRel) {
     bool rel_isResolved = false;
     u08 rel_sym_type = 0;
     std::string rel_name;
-    u08 rel_bind_type = -1;  //-1 means it didn't resolve
 
     switch (type) {
         case R_X86_64_RELATIVE:
@@ -531,7 +530,6 @@ static void relocate(u32 idx, elf_relocation* rel, Module* m, bool isJmpRel) {
             }
             switch (sym_bind) {
                 case STB_GLOBAL:
-                    rel_bind_type = STB_GLOBAL;
                     rel_name = namesTlb + sym.st_name;
                     m->linker->Resolve(rel_name, rel_sym_type, m, &symrec);
                     symbol_vitrual_addr = symrec.virtual_address;

src/Emulator/Util/singleton.h

@@ -1,24 +1,21 @@
 #pragma once
 
-#include <cstdlib>
-#include <new>
+#include <memory>
 
 template <class T>
 class singleton {
-  public:
+public:
     static T* instance() {
         if (!m_instance) {
-            m_instance = static_cast<T*>(std::malloc(sizeof(T)));
-            new (m_instance) T;
+            m_instance = std::make_unique<T>();
         }
-
         return m_instance;
     }
 
-  protected:
+protected:
     singleton();
     ~singleton();
 
-  private:
-    static inline T* m_instance = nullptr;
-};
+private:
+    static inline std::unique_ptr<T> m_instance{};
+};

src/main.cpp

@@ -54,7 +54,7 @@ int main(int argc, char* argv[]) {
     const char* const path = argv[1];  // argument 1 is the path of self file to boot
 
     auto* linker = singleton<Linker>::instance();
-    HLE::Libs::Init_HLE_Libs(linker->getHLESymbols());
+    HLE::Libs::Init_HLE_Libs(&linker->getHLESymbols());
     auto* module = linker->LoadModule(path);  // load main executable
     std::jthread mainthread(
         [](std::stop_token stop_token, void*) {