cmake/scripts/linux/Macros.cmake

   1 function(core_link_library lib wraplib)
   2   set(export -Wl,--unresolved-symbols=ignore-all
   3              `cat ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/cores/dll-loader/exports/wrapper.def`
   4              ${CMAKE_BINARY_DIR}/${CORE_BUILD_DIR}/cores/dll-loader/exports/CMakeFiles/wrapper.dir/wrapper.c.o)
   5   set(check_arg "")
   6   if(TARGET ${lib})
   7     set(target ${lib})
   8     set(link_lib $<TARGET_FILE:${lib}>)
   9     set(check_arg ${ARGV2})
  10     set(data_arg  ${ARGV3})
  11   else()
  12     set(target ${ARGV2})
  13     set(link_lib ${lib})
  14     set(check_arg ${ARGV3})
  15     set(data_arg ${ARGV4})
  16   endif()
  17
  18   # wrapper has to be adapted in order to support coverage.
  19   if(CMAKE_BUILD_TYPE STREQUAL Coverage)
  20     set(export "")
  21   endif()
  22
  23   if(check_arg STREQUAL export)
  24     set(export ${export}
  25         -Wl,--version-script=${ARGV3})
  26   elseif(check_arg STREQUAL extras)
  27     foreach(arg ${data_arg})
  28       list(APPEND export ${arg})
  29     endforeach()
  30   elseif(check_arg STREQUAL archives)
  31     set(extra_libs ${data_arg})
  32   endif()
  33
  34   string(REGEX REPLACE "[ ]+" ";" _flags "${CMAKE_SHARED_LINKER_FLAGS}")
  35   get_filename_component(dir ${wraplib} DIRECTORY)
  36   add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${CMAKE_SHARED_MODULE_SUFFIX}
  37                      COMMAND ${CMAKE_COMMAND} -E make_directory ${dir}
  38                      COMMAND ${CMAKE_C_COMPILER}
  39                      ARGS    ${_flags} -Wl,--whole-archive
  40                              "${link_lib}" ${extra_libs}
  41                              -Wl,--no-whole-archive -lm
  42                              -Wl,-soname,${wraplib}-${ARCH}${CMAKE_SHARED_MODULE_SUFFIX}
  43                              -shared -o ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${CMAKE_SHARED_MODULE_SUFFIX}
  44                              ${export}
  45                      DEPENDS ${target} wrapper.def wrapper)
  46
  47   get_filename_component(libname ${wraplib} NAME_WE)
  48   add_custom_target(wrap_${libname} ALL DEPENDS ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${CMAKE_SHARED_MODULE_SUFFIX})
  49   set_target_properties(wrap_${libname} PROPERTIES FOLDER lib/wrapped)
  50   add_dependencies(${APP_NAME_LC}-libraries wrap_${libname})
  51
  52   set(LIBRARY_FILES ${LIBRARY_FILES} ${CMAKE_BINARY_DIR}/${wraplib}-${ARCH}${CMAKE_SHARED_MODULE_SUFFIX} CACHE STRING "" FORCE)
  53 endfunction()
  54
  55 function(find_soname lib)
  56   cmake_parse_arguments(arg "REQUIRED" "" "" ${ARGN})
  57
  58   string(TOLOWER ${lib} liblow)
  59   if(${lib}_LDFLAGS)
  60     set(link_lib "${${lib}_LDFLAGS}")
  61   else()
  62     if(IS_ABSOLUTE "${${lib}_LIBRARIES}")
  63       set(link_lib "${${lib}_LIBRARIES}")
  64     else()
  65       set(link_lib -l${${lib}_LIBRARIES})
  66     endif()
  67   endif()
  68   execute_process(COMMAND ${CMAKE_C_COMPILER} -nostdlib -o /dev/null -Wl,-M ${link_lib}
  69                   COMMAND grep LOAD.*${liblow}
  70                   ERROR_QUIET
  71                   OUTPUT_VARIABLE ${lib}_FILENAME)
  72   string(REPLACE "LOAD " "" ${lib}_FILENAME "${${lib}_FILENAME}")
  73   string(STRIP "${${lib}_FILENAME}" ${lib}_FILENAME)
  74   if(NOT ${lib}_FILENAME)
  75     execute_process(COMMAND ${CMAKE_C_COMPILER} -nostdlib -o /dev/null -Wl,-t ${link_lib}
  76                     OUTPUT_QUIET
  77                     ERROR_VARIABLE _TMP_FILENAME)
  78     string(REGEX MATCH ".*lib${liblow}.so" ${lib}_FILENAME ${_TMP_FILENAME})
  79   endif()
  80   if(${lib}_FILENAME)
  81     execute_process(COMMAND ${CMAKE_OBJDUMP} -p ${${lib}_FILENAME}
  82                     COMMAND grep SONAME.*${liblow}
  83                     ERROR_QUIET
  84                     OUTPUT_VARIABLE ${lib}_SONAME)
  85     string(REPLACE "SONAME " "" ${lib}_SONAME ${${lib}_SONAME})
  86     string(STRIP ${${lib}_SONAME} ${lib}_SONAME)
  87     if(VERBOSE)
  88       message(STATUS "${lib} soname: ${${lib}_SONAME}")
  89     endif()
  90     set(${lib}_SONAME ${${lib}_SONAME} PARENT_SCOPE)
  91   endif()
  92   if(arg_REQUIRED AND NOT ${lib}_SONAME)
  93     message(FATAL_ERROR "Could not find dynamically loadable library ${lib}")
  94   endif()
  95 endfunction()