Add executable stripping step in build workflow; update toolchain for size optimization

Author: woldann

.github/workflows/build.yml

@@ -30,6 +30,8 @@ jobs:
         cmake -B build -DCMAKE_TOOLCHAIN_FILE=toolchain-mingw.cmake -DCMAKE_BUILD_TYPE=Release
     - name: Build
       run: cmake --build build
+    - name: Strip executable
+      run: x86_64-w64-mingw32-strip build/ghostinjector-*.exe
     - name: Rename executable
       run: mv build/ghostinjector-*.exe build/ghostinjector.exe
 

toolchain-mingw.cmake

@@ -2,4 +2,7 @@
 set(CMAKE_SYSTEM_NAME Windows)
 set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
 set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
-set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
+
+# Optimize for size in release builds
+string(APPEND CMAKE_C_FLAGS_RELEASE " -Os")