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# support for eCos http://ecos.sourceware.org
SET(CMAKE_SHARED_LIBRARY_C_FLAGS "") # -pic
SET(CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS "") # -shared
SET(CMAKE_SHARED_LIBRARY_LINK_C_FLAGS "") # +s, flag for exe link to use shared lib
SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "") # -rpath
SET(CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG_SEP "") # : or empty
SET(CMAKE_LINK_LIBRARY_SUFFIX "")
SET(CMAKE_STATIC_LIBRARY_PREFIX "lib")
SET(CMAKE_STATIC_LIBRARY_SUFFIX ".a")
SET(CMAKE_SHARED_LIBRARY_PREFIX "lib") # lib
SET(CMAKE_SHARED_LIBRARY_SUFFIX ".a") # .a
SET(CMAKE_EXECUTABLE_SUFFIX ".elf") # same suffix as if built using UseEcos.cmake
SET(CMAKE_DL_LIBS "" )
SET(CMAKE_FIND_LIBRARY_PREFIXES "lib")
SET(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
INCLUDE(Platform/UnixPaths)
# eCos can be built only with gcc
IF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
ENDIF(CMAKE_C_COMPILER AND NOT "${CMAKE_C_COMPILER_ID}" MATCHES "GNU")
IF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
MESSAGE(FATAL_ERROR "GNU gcc is required for eCos")
ENDIF(CMAKE_CXX_COMPILER AND NOT "${CMAKE_CXX_COMPILER_ID}" MATCHES "GNU")
# this is a header which is part of every eCos "installation"
# it would be better to search for libtarget.a, but this isn't possible
# at this point in the setup process, since CMAKE_SIZEOF_VOID_P is still
# unknown, which is used in FIND_LIBRARY()
FIND_PATH(ECOS_SYSTEM_CONFIG_HEADER_PATH NAMES pkgconf/system.h)
IF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
MESSAGE(FATAL_ERROR "Could not find eCos pkgconf/system.h. Build eCos first and set up CMAKE_FIND_ROOT_PATH correctly.")
ENDIF(NOT ECOS_SYSTEM_CONFIG_HEADER_PATH)
GET_FILENAME_COMPONENT(ECOS_LIBTARGET_DIRECTORY "${ECOS_SYSTEM_CONFIG_HEADER_PATH}" PATH)
INCLUDE_DIRECTORIES(${ECOS_SYSTEM_CONFIG_HEADER_PATH})
ADD_DEFINITIONS(-D__ECOS__=1 -D__ECOS=1)
SET(ECOS_LIBTARGET_DIRECTORY "${ECOS_LIBTARGET_DIRECTORY}/lib")
# special link commands for eCos executables
SET(CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> -nostdlib -nostartfiles -L${ECOS_LIBTARGET_DIRECTORY} -Ttarget.ld <LINK_LIBRARIES>")
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>")
# eCos doesn't support shared libs
SET_PROPERTIES(GLOBAL PROPERTIES TARGET_SUPPORTS_SHARED_LIBS FALSE)
SET(CMAKE_CXX_LINK_SHARED_LIBRARY )
SET(CMAKE_CXX_LINK_MODULE_LIBRARY )
SET(CMAKE_C_LINK_SHARED_LIBRARY )
SET(CMAKE_C_LINK_MODULE_LIBRARY )
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