rev: set up cross compiling to develop in both linux and windows

CMakeLists.txt

@@ -1,15 +1,24 @@
-cmake_minimum_required(VERSION 3.15)
-project(wh0revshell CXX)
+cmake_minimum_required(VERSION 3.20)
+project(wh0loader LANGUAGES CXX)
 
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-add_executable(wh0revshell "src/wh0revshell.cpp")
+add_executable(wh0loader
+    src/wh0loader.cpp
+)
 
-# Explicitly link Windows socket library
-target_link_libraries(wh0revshell PRIVATE ws2_32)
-
-# Force Static Linking
-if(MSVC)
-    set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
+# Windows libs
+if(WIN32)
+    target_link_libraries(wh0loader PRIVATE ws2_32)
+endif()
+
+# Static runtime (GCC MinGW)
+if(MINGW)
+    target_link_options(wh0loader PRIVATE
+        -static
+        -static-libgcc
+        -static-libstdc++
+        -pthread
+    )
 endif()

CMakePresets.json

@@ -0,0 +1,37 @@
+{
+  "version": 6,
+
+  "configurePresets": [
+    {
+      "name": "linux",
+      "displayName": "Linux → Windows (MinGW)",
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build/bin",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release",
+        "CMAKE_TOOLCHAIN_FILE": "${sourceDir}/cmake/toolchains/mingw-w64.cmake"
+      }
+    },
+
+    {
+      "name": "windows",
+      "displayName": "Windows (MinGW)",
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build/bin",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release"
+      }
+    }
+  ],
+
+  "buildPresets": [
+    {
+      "name": "linux",
+      "configurePreset": "linux"
+    },
+    {
+      "name": "windows",
+      "configurePreset": "windows"
+    }
+  ]
+}

cmake/toolchains/mingw-w64.cmake

@@ -0,0 +1,16 @@
+set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR x86_64)
+
+set(TOOLCHAIN_PREFIX x86_64-w64-mingw32)
+
+set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}-gcc)
+set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}-g++)
+
+set(CMAKE_RC_COMPILER ${TOOLCHAIN_PREFIX}-windres)
+
+set(CMAKE_FIND_ROOT_PATH /usr/${TOOLCHAIN_PREFIX})
+
+set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
+set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
+set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

src/wh0loader.cpp

@@ -3,7 +3,7 @@
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <ws2def.h>
-#include <Windows.h>
+#include <windows.h>
 
 #include <cstdlib>
 #include <iostream>