makes the port provide its dependencies as a library

CMakeLists.txt

@@ -36,54 +36,35 @@ option(NX_DEBUG "compile netxduo debug output in" OFF)
 set(TARGET_MEM "ram" CACHE STRING "memory map to use")
 set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
 
+add_subdirectory(port/moonlight)
+
 function(setup_target TARGET)
   set(options)
   set(oneValueArgs) # none for now
   set(multiValueArgs LIBRARIES SOURCES)
   cmake_parse_arguments(ST "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
   if(ST_UNPARSED_ARGUMENTS)
-    message(FATAL_ERROR "setup_target(${target} ...): unknown args: ${ST_UNPARSED_ARGUMENTS}")
+    message(FATAL_ERROR "setup_target(${TARGET} ...): unknown args: ${ST_UNPARSED_ARGUMENTS}")
   endif()
 
   add_executable(${TARGET})
-  target_sources(${TARGET} PRIVATE
-    ${CMAKE_SOURCE_DIR}/port/picolibc/port.c
-    ${CMAKE_SOURCE_DIR}/port/moonlight/bootup.c
-    ${CMAKE_SOURCE_DIR}/port/moonlight/board.c
-    ${CMAKE_SOURCE_DIR}/port/moonlight/trap_non_vectored.c
-    ${CMAKE_SOURCE_DIR}/port/moonlight/exception.c
-    ${CMAKE_SOURCE_DIR}/port/moonlight/vector_table.c
-  )
+  target_add_moonlight_platform(${TARGET})
+
   if("netxduo" IN_LIST ST_LIBRARIES)
-    target_sources(${TARGET} PRIVATE ${CMAKE_SOURCE_DIR}/port/moonlight/mnrs_network_driver.c)
+    target_add_moonlight_network_driver(${TARGET})
   endif()
 
   if(ST_SOURCES)
     target_sources(${TARGET} PRIVATE ${ST_SOURCES})
   endif()
 
-  target_include_directories(${TARGET} PRIVATE ${CMAKE_SOURCE_DIR}/port/moonlight ${CMAKE_SOURCE_DIR}/src)
-  target_compile_options(${TARGET} PRIVATE
-    -ffreestanding
-    -fno-builtin
-    -fdata-sections
-    -ffunction-sections
-  )
-  if(NX_DEBUG)
-    target_compile_definitions(${TARGET} PRIVATE NX_DEBUG NX_DEBUG_PACKET)
-  endif()
-  target_link_directories(${TARGET} PRIVATE ${CMAKE_SOURCE_DIR}/src) # needed for linker script includes
-  target_link_options(${TARGET} PRIVATE
-    -nostartfiles
-    -nostdlib
-    -T ${CMAKE_SOURCE_DIR}/src/${TARGET_MEM}.lds
-    -Wl,--gc-sections
-    -Wl,-Map=${CMAKE_BINARY_DIR}/${TARGET}.map
-  )
   if(ST_LIBRARIES)
     target_link_libraries(${TARGET} PRIVATE ${ST_LIBRARIES})
   endif()
 
+  target_link_options(${TARGET} PRIVATE
+    -Wl,-Map=${CMAKE_BINARY_DIR}/${TARGET}.map)
+
   add_custom_command(TARGET ${TARGET} POST_BUILD
     COMMAND ${OBJCOPY} -O ihex $<TARGET_FILE:${TARGET}> ${CMAKE_BINARY_DIR}/${TARGET}.hex
     COMMAND ${OBJCOPY} -O binary $<TARGET_FILE:${TARGET}> ${CMAKE_BINARY_DIR}/${TARGET}.bin