compiler/CMakeLists.txt

   1 # get CODENAME to perform per codename actions
   2 # set focal as default
   3 set(ONE_UBUNTU_CODENAME "focal")
   4 find_program(LSB_RELEASE_EXEC lsb_release)
   5 if(LSB_RELEASE_EXEC)
   6   # output should be one of 'bionic', 'focal', 'jammy'
   7   # others are not tested
   8   execute_process(COMMAND "${LSB_RELEASE_EXEC}" --short --codename
   9                   OUTPUT_VARIABLE ONE_UBUNTU_CODENAME
  10                   OUTPUT_STRIP_TRAILING_WHITESPACE)
  11 else()
  12   message(STATUS "WARNING: lsb_release not found")
  13 endif()
  14
  15 if(${ONE_UBUNTU_CODENAME} STREQUAL "bionic")
  16   set(ONE_UBUNTU_CODENAME_BIONIC TRUE)
  17 endif()
  18
  19 # TODO Validate the argument of "requires"
  20 function(get_project_build_order VAR)
  21   # This file will describe the dependencies among projects
  22   set(DEPS_FILE "${CMAKE_CURRENT_BINARY_DIR}/compiler.deps")
  23
  24   # Remove .deps file
  25   file(REMOVE "${DEPS_FILE}")
  26
  27   # Let's create .deps file
  28   list_subdirectories(PROJECT_DIRS)
  29
  30   foreach(PROJECT_DIR IN ITEMS ${PROJECT_DIRS})
  31     set(SUCC "${PROJECT_DIR}")
  32     set(REQUIRES_FILE "${CMAKE_CURRENT_SOURCE_DIR}/${PROJECT_DIR}/requires.cmake")
  33
  34     macro(require PRED)
  35       file(APPEND "${DEPS_FILE}" "${PRED} ${SUCC} ")
  36     endmacro(require)
  37
  38     file(APPEND "${DEPS_FILE}" "${SUCC} ${SUCC} ")
  39     if(EXISTS "${REQUIRES_FILE}")
  40       include(${REQUIRES_FILE})
  41     endif(EXISTS "${REQUIRES_FILE}")
  42   endforeach(PROJECT_DIR)
  43
  44   # NOTE "tsort" is a part of the POSIX.1 standard.
  45   #
  46   # Reference: http://pubs.opengroup.org/onlinepubs/9699919799/utilities/tsort.html
  47   execute_process(COMMAND tsort "${DEPS_FILE}"
  48                   OUTPUT_VARIABLE ORDER
  49                   OUTPUT_STRIP_TRAILING_WHITESPACE)
  50
  51   # Remove newline characters
  52   # TODO Check which one (UNIX_COMMAND or WINDOWS_COMMAND) is correct
  53   separate_arguments(ORDER UNIX_COMMAND ${ORDER})
  54
  55   set(${VAR} "${ORDER}" PARENT_SCOPE)
  56 endfunction(get_project_build_order)
  57
  58 function(add_compiler_directory DIR)
  59   string(TOUPPER ${DIR} PREFIX)
  60
  61   option(BUILD_COMPILER_${PREFIX} "Build compiler/${dir}" ON)
  62   set(BUILD_WHITELIST "" CACHE STRING "Set modules to be built")
  63
  64   if(NOT BUILD_WHITELIST STREQUAL "")
  65     set(ENABLE OFF)
  66     set(CURRENT_DIR ${DIR})
  67     foreach(ACCEPTED_DIR IN ITEMS ${BUILD_WHITELIST})
  68       if(ACCEPTED_DIR STREQUAL CURRENT_DIR)
  69         set(ENABLE ON)
  70       endif()
  71     endforeach(ACCEPTED_DIR)
  72   else()
  73     set(ENABLE ${BUILD_COMPILER_${PREFIX}})
  74   endif()
  75
  76   # This line prevents some errors in this CMakeLists.txt
  77   if(NOT DEFINED ENABLE)
  78     message(FATAL_ERROR "Undefined ENABLE! Please check CMakeLists.txt")
  79   endif()
  80
  81   if(ENABLE)
  82     message(STATUS "Configure ${PREFIX}")
  83     add_subdirectory(${DIR})
  84     message(STATUS "Configure ${PREFIX} - Done")
  85   endif(ENABLE)
  86 endfunction(add_compiler_directory)
  87
  88 function(add_compiler_directories)
  89   get_project_build_order(PROJECT_DIRS)
  90
  91   foreach(PROJECT_DIR IN ITEMS ${PROJECT_DIRS})
  92     add_compiler_directory(${PROJECT_DIR})
  93   endforeach(PROJECT_DIR)
  94 endfunction(add_compiler_directories)
  95
  96 add_compiler_directories()