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 set(abs_top_srcdir ${LLVM_MAIN_SRC_DIR})
  14 set(abs_top_builddir ${LLVM_BINARY_DIR})
  15 # LLVM_ON_UNIX and LLVM_ON_WIN32 already set.
  16 # those are set to blank by `autoconf' on MinGW, so it seems they are not required:
  17 #set(LLVMGCCDIR "")
  18 #set(LLVMGCC "")
  19 #set(LLVMGXX "")
  20 #set(LLVMGCC_VERSION "")
  21 #set(LLVMGCC_MAJVERS "")
  22 test_big_endian(IS_BIG_ENDIAN)
  23 if( IS_BIG_ENDIAN )
  24   set(ENDIAN "big")
  25 else( IS_BIG_ENDIAN )
  26   set(ENDIAN "little")
  27 endif( IS_BIG_ENDIAN )
  28 set(SHLIBEXT ${LTDL_SHLIB_EXT})
  29 #EXEEXT already set.
  30 set(OS "${CMAKE_SYSTEM}")
  31 set(ARCH "X86") # TODO: This gives "i686" in Linux: "${CMAKE_SYSTEM_PROCESSOR}")
  32
  33 include(GetTargetTriple)
  34 get_target_triple(target)
  35
  36 foreach(c ${LLVM_TARGETS_TO_BUILD})
  37   set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
  38 endforeach(c)
  39 set(TARGETS_TO_BUILD ${TARGETS_BUILT})
  40 set(TARGET_HAS_JIT "1")  # TODO
  41
  42 # Avoids replacement at config-time:
  43 set(LLVM_CPPFLAGS "@LLVM_CPPFLAGS@")
  44 set(LLVM_CFLAGS "@LLVM_CFLAGS@")
  45 set(LLVM_CXXFLAGS "@LLVM_CXXFLAGS@")
  46 set(LLVM_LDFLAGS "@LLVM_LDFLAGS@")
  47 set(LIBS "@LIBS@")
  48 set(LLVM_BUILDMODE "@LLVM_BUILDMODE@")
  49
  50 configure_file(
  51   ${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.in.in
  52   ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in
  53   @ONLY
  54 )
  55
  56 set(LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt)
  57 set(LIBDEPS_TMP ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt.tmp)
  58 set(FINAL_LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/FinalLibDeps.txt)
  59 set(LLVM_CONFIG ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/llvm-config)
  60 set(LLVM_CONFIG_IN ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in)
  61
  62 # set(LIBDEPS LibDeps.txt)
  63 # set(LIBDEPS_TMP LibDeps.txt.tmp)
  64 # set(FINAL_LIBDEPS FinalLibDeps.txt)
  65
  66 if( CMAKE_CROSSCOMPILING )
  67   set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
  68 endif()
  69
  70 find_program(NM_PATH nm PATH_SUFFIXES /bin)
  71
  72 if( NOT NM_PATH )
  73   message(FATAL_ERROR "`nm' not found")
  74 endif()
  75
  76 add_custom_command(OUTPUT ${LIBDEPS_TMP}
  77   COMMAND ${PERL_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/GenLibDeps.pl -flat ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} ${NM_PATH} > ${LIBDEPS_TMP}
  78   DEPENDS ${llvm_libs}
  79   COMMENT "Regenerating ${LIBDEPS_TMP}")
  80
  81 add_custom_command(OUTPUT ${LIBDEPS}
  82   COMMAND cmp -s ${LIBDEPS_TMP} ${LIBDEPS} || \( cp ${LIBDEPS_TMP} ${LIBDEPS} && echo "Updated ${LIBDEPS} because dependencies changed" \)
  83   DEPENDS ${LIBDEPS_TMP})
  84
  85 add_custom_command(OUTPUT ${FINAL_LIBDEPS}
  86   COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS} || rm -f ${FINAL_LIBDEPS}
  87   DEPENDS ${LIBDEPS}
  88   COMMENT "Checking for cyclic dependencies between LLVM libraries.")
  89
  90 add_custom_command(OUTPUT ${LLVM_CONFIG}
  91   COMMAND echo 's,@LLVM_CPPFLAGS@,${CMAKE_CPP_FLAGS},' > temp.sed
  92   COMMAND echo 's,@LLVM_CFLAGS@,${CMAKE_C_FLAGS},' >> temp.sed
  93   COMMAND echo 's,@LLVM_CXXFLAGS@,${CMAKE_CXX_FLAGS},' >> temp.sed
  94   # TODO: Use general flags for linking, not just for shared libs:
  95   COMMAND echo 's,@LLVM_LDFLAGS@,${CMAKE_SHARED_LINKER_FLAGS},' >> temp.sed
  96   COMMAND echo 's,@LIBS@,,' >> temp.sed                    # TODO: System libs
  97   COMMAND echo 's,@LLVM_BUILDMODE@,${CMAKE_BUILD_TYPE},' >> temp.sed
  98   COMMAND sed -f temp.sed < ${LLVM_CONFIG_IN} > ${LLVM_CONFIG}
  99   COMMAND rm temp.sed
 100   COMMAND cat ${FINAL_LIBDEPS} >> ${LLVM_CONFIG}
 101   COMMAND chmod +x ${LLVM_CONFIG}
 102   COMMAND cd ${LLVM_BINARY_DIR} && ${CMAKE_COMMAND} -U HAVE_LLVM_CONFIG ${LLVM_MAIN_SRC_DIR}
 103   DEPENDS ${FINAL_LIBDEPS} ${LLVM_CONFIG_IN}
 104   COMMENT "Building llvm-config script."
 105   )
 106
 107 add_custom_target(llvm-config.target ALL
 108   DEPENDS ${LLVM_CONFIG})
 109
 110 add_dependencies(llvm-config.target ${llvm_lib_targets})
 111
 112 install(FILES ${LLVM_CONFIG}
 113   PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE
 114   WORLD_READ WORLD_EXECUTE
 115   DESTINATION bin)