# This file implements basic support for sdcc (http://sdcc.sourceforge.net/) # a free C compiler for 8 and 16 bit microcontrollers. # To use it either a toolchain file is required or cmake has to be run like this: # cmake -DCMAKE_C_COMPILER=sdcc -DCMAKE_SYSTEM_NAME=Generic <dir...> # Since sdcc doesn't support C++, C++ support should be disabled in the # CMakeLists.txt using the project() command: # project(my_project C) set(CMAKE_STATIC_LIBRARY_PREFIX "") set(CMAKE_STATIC_LIBRARY_SUFFIX ".lib") set(CMAKE_SHARED_LIBRARY_PREFIX "") # lib set(CMAKE_SHARED_LIBRARY_SUFFIX ".lib") # .so set(CMAKE_IMPORT_LIBRARY_PREFIX ) set(CMAKE_IMPORT_LIBRARY_SUFFIX ) set(CMAKE_EXECUTABLE_SUFFIX ".ihx") # intel hex file set(CMAKE_LINK_LIBRARY_SUFFIX ".lib") set(CMAKE_DL_LIBS "") set(CMAKE_C_OUTPUT_EXTENSION ".rel") # find sdar/sdcclib as CMAKE_AR # since cmake may already have searched for "ar", sdar has to # be searched with a different variable name (SDCCAR_EXECUTABLE) # and must then be forced into the cache. # sdcclib has been deprecated in SDCC 3.2.0 and removed in 3.8.6 # so we first look for sdar get_filename_component(SDCC_LOCATION "${CMAKE_C_COMPILER}" PATH) find_program(SDCCAR_EXECUTABLE sdar NAMES sdcclib PATHS "${SDCC_LOCATION}" NO_DEFAULT_PATH) find_program(SDCCAR_EXECUTABLE sdar NAMES sdcclib) # for compatibility, in case SDCCLIB_EXECUTABLE is set, we use it if(DEFINED SDCCLIB_EXECUTABLE) set(CMAKE_AR "${SDCCLIB_EXECUTABLE}" CACHE FILEPATH "The sdcc librarian" FORCE) else() set(CMAKE_AR "${SDCCAR_EXECUTABLE}" CACHE FILEPATH "The sdcc librarian" FORCE) endif() if("${SDCCAR_EXECUTABLE}" MATCHES "sdcclib") set(CMAKE_AR_OPTIONS "-a") else() set(CMAKE_AR_OPTIONS "-rc") endif() set(CMAKE_C_LINKER_WRAPPER_FLAG "-Wl" ",") # compile a C file into an object file set(CMAKE_C_COMPILE_OBJECT "<CMAKE_C_COMPILER> <DEFINES> <INCLUDES> <FLAGS> -o <OBJECT> -c <SOURCE>") # link object files to an executable set(CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <OBJECTS> -o <TARGET> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <LINK_LIBRARIES>") # needs sdcc + sdar/sdcclib set(CMAKE_C_CREATE_STATIC_LIBRARY "\"${CMAKE_COMMAND}\" -E remove <TARGET>" "<CMAKE_AR> ${CMAKE_AR_OPTIONS} <TARGET> <LINK_FLAGS> <OBJECTS> ") # not supported by sdcc set(CMAKE_C_CREATE_SHARED_LIBRARY "") set(CMAKE_C_CREATE_MODULE_LIBRARY "")