tools/llvm-config/CMakeLists.txt

   1 include(TestBigEndian)
   2
   3 if( NOT PERL_FOUND )
   4   message(FATAL_ERROR "Perl required but not found!")
   5 endif( NOT PERL_FOUND )
   6
   7 set(PERL ${PERL_EXECUTABLE})
   8 set(VERSION PACKAGE_VERSION)
   9 set(PREFIX ${LLVM_BINARY_DIR}) # TODO: Root for `make install'.
  10 execute_process(COMMAND date
  11   OUTPUT_VARIABLE LLVM_CONFIGTIME
  12   OUTPUT_STRIP_TRAILING_WHITESPACE)
  13 # LLVM_ON_UNIX and LLVM_ON_WIN32 already set.
  14 # those are set to blank by `autoconf' on MinGW, so it seems they are not required:
  15 #set(LLVMGCCDIR "")
  16 #set(LLVMGCC "")
  17 #set(LLVMGXX "")
  18 #set(LLVMGCC_VERSION "")
  19 #set(LLVMGCC_MAJVERS "")
  20 test_big_endian(IS_BIG_ENDIAN)
  21 if( IS_BIG_ENDIAN )
  22   set(ENDIAN "big")
  23 else( IS_BIG_ENDIAN )
  24   set(ENDIAN "little")
  25 endif( IS_BIG_ENDIAN )
  26 set(SHLIBEXT ${LTDL_SHLIB_EXT})
  27 #EXEEXT already set.
  28 set(OS "${CMAKE_SYSTEM}")
  29 set(ARCH "X86") # TODO: This gives "i686" in Linux: "${CMAKE_SYSTEM_PROCESSOR}")
  30
  31 include(GetTargetTriple)
  32 get_target_triple(target)
  33
  34 foreach(c ${LLVM_TARGETS_TO_BUILD})
  35   set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
  36 endforeach(c)
  37 set(TARGETS_TO_BUILD ${TARGETS_BUILT})
  38 set(TARGET_HAS_JIT "1")  # TODO
  39
  40 # Avoids replacement at config-time:
  41 set(LLVM_CPPFLAGS "@LLVM_CPPFLAGS@")
  42 set(LLVM_CFLAGS "@LLVM_CFLAGS@")
  43 set(LLVM_CXXFLAGS "@LLVM_CXXFLAGS@")
  44 set(LLVM_LDFLAGS "@LLVM_LDFLAGS@")
  45 set(LIBS "@LIBS@")
  46 set(LLVM_BUILDMODE "@LLVM_BUILDMODE@")
  47
  48 configure_file(
  49   ${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.in.in
  50   ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in
  51   @ONLY
  52 )
  53
  54 set(LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt)
  55 set(LIBDEPS_TMP ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt.tmp)
  56 set(FINAL_LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/FinalLibDeps.txt)
  57 set(LLVM_CONFIG ${LLVM_TOOLS_BINARY_DIR}/llvm-config)
  58 set(LLVM_CONFIG_IN ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in)
  59
  60 if( CMAKE_CROSSCOMPILING )
  61   set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
  62 endif()
  63
  64 find_program(NM_PATH nm PATH_SUFFIXES /bin)
  65
  66 if( NOT NM_PATH )
  67   message(FATAL_ERROR "`nm' not found")
  68 endif()
  69
  70 add_custom_command(OUTPUT ${LIBDEPS_TMP}
  71   COMMAND ${PERL_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/GenLibDeps.pl -flat ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} ${NM_PATH} > ${LIBDEPS_TMP}
  72   DEPENDS ${llvm_libs}
  73   COMMENT "Regenerating ${LIBDEPS_TMP}")
  74
  75 add_custom_command(OUTPUT ${LIBDEPS}
  76   COMMAND ${CMAKE_COMMAND} -E copy_if_different ${LIBDEPS_TMP} ${LIBDEPS}
  77   DEPENDS ${LIBDEPS_TMP}
  78   COMMENT "Updated ${LIBDEPS} because dependencies changed")
  79
  80 add_custom_command(OUTPUT ${FINAL_LIBDEPS}
  81   COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS} || ${CMAKE_COMMAND} -E remove -f ${FINAL_LIBDEPS}
  82   DEPENDS ${LIBDEPS}
  83   COMMENT "Checking for cyclic dependencies between LLVM libraries.")
  84
  85 add_custom_command(OUTPUT ${LLVM_CONFIG}
  86   COMMAND echo 's,@LLVM_CPPFLAGS@,${CMAKE_CPP_FLAGS},' > temp.sed
  87   COMMAND echo 's,@LLVM_CFLAGS@,${CMAKE_C_FLAGS},' >> temp.sed
  88   COMMAND echo 's,@LLVM_CXXFLAGS@,${CMAKE_CXX_FLAGS},' >> temp.sed
  89   # TODO: Use general flags for linking, not just for shared libs:
  90   COMMAND echo 's,@LLVM_LDFLAGS@,${CMAKE_SHARED_LINKER_FLAGS},' >> temp.sed
  91   COMMAND echo 's,@LIBS@,,' >> temp.sed                    # TODO: System libs
  92   COMMAND echo 's,@LLVM_BUILDMODE@,${CMAKE_BUILD_TYPE},' >> temp.sed
  93   COMMAND sed -f temp.sed < ${LLVM_CONFIG_IN} > ${LLVM_CONFIG}
  94   COMMAND ${CMAKE_COMMAND} -E remove -f temp.sed
  95   COMMAND cat ${FINAL_LIBDEPS} >> ${LLVM_CONFIG}
  96   COMMAND chmod +x ${LLVM_CONFIG}
  97   COMMAND cd ${CMAKE_BINARY_DIR} && ${CMAKE_COMMAND} -U HAVE_LLVM_CONFIG -D LLVM_BINARY_DIR="${LLVM_BINARY_DIR}" ${CMAKE_SOURCE_DIR}
  98   DEPENDS ${FINAL_LIBDEPS} ${LLVM_CONFIG_IN}
  99   COMMENT "Building llvm-config script."
 100   )
 101
 102 add_custom_target(llvm-config.target ALL
 103   DEPENDS ${LLVM_CONFIG})
 104
 105 add_dependencies(llvm-config.target ${llvm_lib_targets})
 106
 107 install(FILES ${LLVM_CONFIG}
 108   PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE
 109   WORLD_READ WORLD_EXECUTE
 110   DESTINATION bin)