tools/llvm-config/CMakeLists.txt

   1 include(TestBigEndian)
   2
   3 include(FindPerl)
   4 if( NOT PERL_FOUND )
   5   message(FATAL_ERROR "Perl required but not found!")
   6 endif( NOT PERL_FOUND )
   7
   8 set(PERL ${PERL_EXECUTABLE})
   9 set(VERSION PACKAGE_VERSION)
  10 set(PREFIX ${CMAKE_INSTALL_PREFIX})
  11 set(abs_top_srcdir ${LLVM_MAIN_SRC_DIR})
  12 set(abs_top_builddir ${LLVM_BINARY_DIR})
  13 execute_process(COMMAND date
  14   OUTPUT_VARIABLE LLVM_CONFIGTIME
  15   OUTPUT_STRIP_TRAILING_WHITESPACE)
  16 # LLVM_ON_UNIX and LLVM_ON_WIN32 already set.
  17 # those are set to blank by `autoconf' on MinGW, so it seems they are not required:
  18 #set(LLVMGCCDIR "")
  19 #set(LLVMGCC "")
  20 #set(LLVMGXX "")
  21 test_big_endian(IS_BIG_ENDIAN)
  22 if( IS_BIG_ENDIAN )
  23   set(ENDIAN "big")
  24 else( IS_BIG_ENDIAN )
  25   set(ENDIAN "little")
  26 endif( IS_BIG_ENDIAN )
  27 set(SHLIBEXT ${LTDL_SHLIB_EXT})
  28 #EXEEXT already set.
  29 set(OS "${CMAKE_SYSTEM}")
  30 set(target "${TARGET_TRIPLE}")
  31 set(ARCH "${LLVM_NATIVE_ARCH}")
  32
  33 get_system_libs(LLVM_SYSTEM_LIBS_LIST)
  34 foreach(l ${LLVM_SYSTEM_LIBS_LIST})
  35   set(LLVM_SYSTEM_LIBS ${LLVM_SYSTEM_LIBS} "-l${l}")
  36 endforeach()
  37
  38 foreach(c ${LLVM_TARGETS_TO_BUILD})
  39   set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
  40 endforeach(c)
  41 set(TARGETS_TO_BUILD ${TARGETS_BUILT})
  42 set(TARGET_HAS_JIT "1")  # TODO
  43
  44 # Avoids replacement at config-time:
  45 set(LLVM_CPPFLAGS "@LLVM_CPPFLAGS@")
  46 set(LLVM_CFLAGS "@LLVM_CFLAGS@")
  47 set(LLVM_CXXFLAGS "@LLVM_CXXFLAGS@")
  48 set(LLVM_LDFLAGS "@LLVM_LDFLAGS@")
  49 set(LIBS "@LIBS@")
  50 set(LLVM_BUILDMODE "@LLVM_BUILDMODE@")
  51 set(LLVM_OBJ_SUFFIX "@LLVM_OBJ_SUFFIX@")
  52
  53 configure_file(
  54   ${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.in.in
  55   ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in
  56   @ONLY
  57 )
  58
  59 set(LIBDEPS LibDeps.txt)
  60 set(LIBDEPS_TMP LibDeps.txt.tmp)
  61 set(FINAL_LIBDEPS FinalLibDeps.txt)
  62 set(LLVM_CONFIG ${LLVM_TOOLS_BINARY_DIR}/llvm-config)
  63 set(LLVM_CONFIG_IN ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in)
  64
  65 if( CMAKE_CROSSCOMPILING )
  66   set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
  67 endif()
  68
  69 find_program(NM_PATH nm PATH_SUFFIXES /bin)
  70
  71 if( NOT NM_PATH )
  72   message(FATAL_ERROR "`nm' not found")
  73 endif()
  74
  75 get_property(llvm_libs GLOBAL PROPERTY LLVM_LIBS)
  76
  77 add_custom_command(OUTPUT ${LIBDEPS_TMP}
  78   COMMAND ${PERL_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/GenLibDeps.pl -flat ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR} ${NM_PATH} > ${LIBDEPS_TMP}
  79   DEPENDS ${llvm_libs}
  80   COMMENT "Regenerating ${LIBDEPS_TMP}")
  81
  82 add_custom_command(OUTPUT ${LIBDEPS}
  83   COMMAND ${CMAKE_COMMAND} -E copy_if_different ${LIBDEPS_TMP} ${LIBDEPS}
  84   DEPENDS ${LIBDEPS_TMP}
  85   COMMENT "Updating ${LIBDEPS} if necessary...")
  86
  87 # This must stop the build if find-cycles.pl returns error:
  88 add_custom_command(OUTPUT ${FINAL_LIBDEPS}
  89   COMMAND ${CMAKE_COMMAND} -E remove -f ${FINAL_LIBDEPS} ${FINAL_LIBDEPS}.tmp
  90   COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS}.tmp
  91   COMMAND ${CMAKE_COMMAND} -E copy ${FINAL_LIBDEPS}.tmp ${FINAL_LIBDEPS}
  92   DEPENDS ${LIBDEPS}
  93   COMMENT "Checking for cyclic dependencies between LLVM libraries.")
  94
  95 set(C_FLGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
  96 set(CXX_FLGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
  97 set(CPP_FLGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
  98
  99 # We don't want certain flags on the output of
 100 # llvm-config --cflags --cxxflags
 101 macro(remove_option_from_llvm_config option)
 102   llvm_replace_compiler_option(C_FLGS "${option}" "")
 103   llvm_replace_compiler_option(CXX_FLGS "${option}" "")
 104   llvm_replace_compiler_option(CPP_FLGS "${option}" "")
 105 endmacro(remove_option_from_llvm_config)
 106 remove_option_from_llvm_config("-pedantic")
 107 remove_option_from_llvm_config("-Wall")
 108 remove_option_from_llvm_config("-W")
 109
 110 add_custom_command(OUTPUT ${LLVM_CONFIG}
 111   COMMAND echo s!@LLVM_CPPFLAGS@!${CPP_FLGS}! > temp.sed
 112   COMMAND echo s!@LLVM_CFLAGS@!${C_FLGS}! >> temp.sed
 113   COMMAND echo s!@LLVM_CXXFLAGS@!${CXX_FLGS}! >> temp.sed
 114   # TODO: Use general flags for linking! not just for shared libs:
 115   COMMAND echo s!@LLVM_LDFLAGS@!${CMAKE_SHARED_LINKER_FLAGS}! >> temp.sed
 116   COMMAND echo s!@LIBS@!${LLVM_SYSTEM_LIBS}! >> temp.sed
 117   COMMAND echo s!@LLVM_BUILDMODE@!${CMAKE_BUILD_TYPE}! >> temp.sed
 118   COMMAND echo s!@LLVM_OBJ_SUFFIX@!! >> temp.sed
 119   COMMAND sed -f temp.sed < ${LLVM_CONFIG_IN} > ${LLVM_CONFIG}
 120   COMMAND ${CMAKE_COMMAND} -E remove -f temp.sed
 121   COMMAND cat ${FINAL_LIBDEPS} >> ${LLVM_CONFIG}
 122   COMMAND chmod +x ${LLVM_CONFIG}
 123   VERBATIM
 124   DEPENDS ${FINAL_LIBDEPS} ${LLVM_CONFIG_IN}
 125   COMMENT "Building llvm-config script."
 126   )
 127
 128 install(FILES ${LLVM_CONFIG}
 129   PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE
 130   WORLD_READ WORLD_EXECUTE
 131   DESTINATION bin)