fix: use platform specific calls to get executable dir

src/Linker/LinkerArgs.cpp

@@ -5,6 +5,7 @@
 #include "ObjWriting.h"
 #include "Utils/Arguments/UsageInformation.h"
 #include "Utils/FileUtils.h"
+#include "Utils/PathUtils.h"
 
 #include <filesystem>
 #include <format>
@@ -152,9 +153,9 @@ void LinkerArgs::PrintVersion()
     std::cout << std::format("OpenAssetTools Linker {}\n", GIT_VERSION);
 }
 
-void LinkerArgs::SetBinFolder(const char* argv0)
+void LinkerArgs::SetBinFolder()
 {
-    const fs::path path(argv0);
+    const fs::path path(utils::GetExecutablePath());
     m_bin_folder = path.parent_path().string();
 }
 
@@ -190,7 +191,7 @@ bool LinkerArgs::ParseArgs(const int argc, const char** argv, bool& shouldContin
         return true;
     }
 
-    SetBinFolder(argv[0]);
+    SetBinFolder();
 
     m_project_specifiers_to_build = m_argument_parser.GetArguments();
     if (m_project_specifiers_to_build.empty())

src/Linker/LinkerArgs.h

@@ -37,7 +37,7 @@ private:
     void PrintUsage() const;
     static void PrintVersion();
 
-    void SetBinFolder(const char* argv0);
+    void SetBinFolder();
     void SetVerbose(bool isVerbose);
 
     ArgumentParser m_argument_parser;

src/Utils/Utils/FileUtils.h

@@ -1,4 +1,5 @@
 #pragma once
+
 #include <cstdint>
 #include <set>
 #include <string>

src/Utils/Utils/PathUtils.cpp

@@ -0,0 +1,27 @@
+#include "PathUtils.h"
+
+#include <stdexcept>
+
+#ifdef _WIN32
+#include <windows.h>
+#elif defined(__linux__)
+#include <limits.h>
+#include <unistd.h>
+#endif
+
+namespace utils
+{
+    std::string GetExecutablePath()
+    {
+#ifdef _WIN32
+        char result[MAX_PATH];
+        return std::string(result, GetModuleFileNameA(NULL, result, MAX_PATH));
+#elif defined(__linux__)
+        char result[PATH_MAX];
+        const auto count = readlink("/proc/self/exe", result, PATH_MAX);
+        return std::string(result, (count > 0) ? count : 0);
+#else
+        throw std::runtime_error("Unknown platform for executable path");
+#endif
+    }
+} // namespace utils

src/Utils/Utils/PathUtils.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <string>
+
+namespace utils
+{
+    std::string GetExecutablePath();
+}