Modules/Platform/eCos.cmake

   1 # support for eCos http://ecos.sourceware.org
   2 SET(CMAKE_SHARED_LIBRARY_C_FLAGS "")            # -pic
   3 SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "")       # -shared
   4 SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "")         # +s, flag for exe link to use shared lib
   5 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "")       # -rpath
   6 SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP "")   # : or empty
   7
   8 SET(CMAKE_LINK_LIBRARY_SUFFIX "")
   9 SET(CMAKE_STATIC_LIBRARY_PREFIX "lib")
  10 SET(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
  11 SET(CMAKE_SHARED_LIBRARY_PREFIX "lib")          # lib
  12 SET(CMAKE_SHARED_LIBRARY_SUFFIX ".a")           # .a
  13 SET(CMAKE_EXECUTABLE_SUFFIX ".elf")             # same suffix as if built using UseEcos.cmake
  14 SET(CMAKE_DL_LIBS "" )
  15
  16 SET(CMAKE_FIND_LIBRARY_PREFIXES "lib")
  17 SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
  18
  19
  20 INCLUDE(Platform/UnixPaths)
  21
  22 # eCos can be built only with gcc
  23 IF(CMAKE_C_COMPILER AND NOT  "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
  24   MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
  25 ENDIF(CMAKE_C_COMPILER AND NOT  "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
  26 IF(CMAKE_CXX_COMPILER AND NOT  "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
  27   MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
  28 ENDIF(CMAKE_CXX_COMPILER AND NOT  "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
  29
  30 # this is a header which is part of every eCos "installation"
  31 # it would be better to search for libtarget.a, but this isn't possible
  32 # at this point in the setup process, since CMAKE_SIZEOF_VOID_P is still
  33 # unknown, which is used in FIND_LIBRARY()
  34 FIND_PATH(ECOS_SYSTEM_CONFIG_HEADER_PATH NAMES pkgconf/system.h)
  35
  36 IF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
  37   MESSAGE(FATAL_ERROR "Could not find eCos pkgconf/system.h. Build eCos first and set up CMAKE_FIND_ROOT_PATH correctly.")
  38 ENDIF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
  39
  40 GET_FILENAME_COMPONENT(ECOS_LIBTARGET_DIRECTORY "${ECOS_SYSTEM_CONFIG_HEADER_PATH}" PATH)
  41 INCLUDE_DIRECTORIES(${ECOS_SYSTEM_CONFIG_HEADER_PATH})
  42 ADD_DEFINITIONS(-D__ECOS__=1 -D__ECOS=1)
  43 SET(ECOS_LIBTARGET_DIRECTORY "${ECOS_LIBTARGET_DIRECTORY}/lib")
  44
  45 # special link commands for eCos executables
  46 SET(CMAKE_CXX_LINK_EXECUTABLE  "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> -nostdlib -nostartfiles -L${ECOS_LIBTARGET_DIRECTORY} -Ttarget.ld  <LINK_LIBRARIES>")
  47 SET(CMAKE_C_LINK_EXECUTABLE    "<CMAKE_C_COMPILER>   <FLAGS> <CMAKE_C_LINK_FLAGS>   <LINK_FLAGS> <OBJECTS> -o <TARGET> -nostdlib -nostartfiles -L${ECOS_LIBTARGET_DIRECTORY} -Ttarget.ld  <LINK_LIBRARIES>")
  48
  49 # eCos doesn't support shared libs
  50 SET_PROPERTY(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS FALSE)
  51
  52 SET(CMAKE_CXX_LINK_SHARED_LIBRARY )
  53 SET(CMAKE_CXX_LINK_MODULE_LIBRARY )
  54 SET(CMAKE_C_LINK_SHARED_LIBRARY )
  55 SET(CMAKE_C_LINK_MODULE_LIBRARY )
  56