Integrate gs building code for MacOS systems

CMakeLists.txt

@@ -8,7 +8,9 @@ if(${CMAKE_BUILD_TYPE} MATCHES OBC)
     endif()
     set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/cmake/toolchain_arm_none_eabi.cmake)
 elseif(${CMAKE_BUILD_TYPE} MATCHES GS)
-    set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/cmake/toolchain_ground_station_gcc.cmake)
+    if(NOT APPLE)
+        set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/cmake/toolchain_ground_station_gcc.cmake)
+    endif()
 elseif(${CMAKE_BUILD_TYPE} MATCHES HIL)
     include(${CMAKE_SOURCE_DIR}/cmake/fetch_googletest.cmake)
     set(CMAKE_TOOLCHAIN_FILE ${CMAKE_SOURCE_DIR}/cmake/toolchain_hil_gcc.cmake)

gs/backend/CMakeLists.txt

@@ -14,6 +14,13 @@ target_include_directories(gs.out PUBLIC
 
 target_compile_options(gs.out PUBLIC -Wall -g)
 
+if(APPLE)
+    target_link_libraries(gs.out PUBLIC
+        "-framework CoreFoundation"
+        "-framework IOKit"
+    )
+endif()
+
 if(UNIX)
     target_link_libraries(gs.out PUBLIC
         tiny-aes

gs/backend/main.c

@@ -12,7 +12,11 @@
 #include <aes.h>
 #include <cserialport.h>
 
-#include <malloc.h>
+#ifdef __APPLE__
+#ifdef TARGET_OS_MAC
+#include <CoreFoundation/CoreFoundation.h>
+#endif
+#endif
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>

interfaces/obc_gs_interface/__init__.py

@@ -1,6 +1,12 @@
 from ctypes import CDLL
 from pathlib import Path
+from sys import platform
+
+if platform == "darwin":
+    extension = "dylib"
+else:
+    extension = "so"
 
 # The shared object file we are using the access the c functions via ctypes
-path = (Path(__file__).parent / "../../build_gs/interfaces/libobc-gs-interface.so").resolve()
+path = (Path(__file__).parent / f"../../build_gs/interfaces/libobc-gs-interface.{extension}").resolve()
 interface = CDLL(str(path))

obc/CMakeLists.txt

@@ -1,5 +1,10 @@
 cmake_minimum_required(VERSION 3.15)
 
+if(APPLE)
+    find_library(COREFOUNDATION CoreFoundation)
+    find_library(IOKIT IOKit)
+endif()
+
 # Set default values for firmware build options
 include(${CMAKE_SOURCE_DIR}/cmake/obc_build_options.cmake)