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 # TODO: avoid using autoconf:
  33 set(config_guess ${LLVM_MAIN_SRC_DIR}/autoconf/config.guess)
  34 execute_process(COMMAND sh ${config_guess}
  35   RESULT_VARIABLE TT_RV
  36   OUTPUT_VARIABLE LLVM_TARGET_TRIPLET
  37   OUTPUT_STRIP_TRAILING_WHITESPACE)
  38 message(STATUS "Target triplet: ${LLVM_TARGET_TRIPLET}")
  39 if( NOT TT_RV EQUAL 0 )
  40   message(FATAL_ERROR "Failed to execute ${config_guess}")
  41 endif( NOT TT_RV EQUAL 0 )
  42 set(target ${LLVM_TARGET_TRIPLET})
  43 set(TARGETS_TO_BUILD "X86")  # TODO
  44 set(TARGET_HAS_JIT "1")  # TODO
  45
  46 # Avoids replacement at config-time:
  47 set(LLVM_CPPFLAGS "@LLVM_CPPFLAGS@")
  48 set(LLVM_CFLAGS "@LLVM_CFLAGS@")
  49 set(LLVM_CXXFLAGS "@LLVM_CXXFLAGS@")
  50 set(LLVM_LDFLAGS "@LLVM_LDFLAGS@")
  51 set(LIBS "@LIBS@")
  52 set(LLVM_BUILDMODE "@LLVM_BUILDMODE@")
  53
  54 configure_file(
  55   ${CMAKE_CURRENT_SOURCE_DIR}/llvm-config.in.in
  56   ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in
  57   @ONLY
  58 )
  59
  60 set(LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt)
  61 set(LIBDEPS_TMP ${CMAKE_CURRENT_BINARY_DIR}/LibDeps.txt.tmp)
  62 set(FINAL_LIBDEPS ${CMAKE_CURRENT_BINARY_DIR}/FinalLibDeps.txt)
  63 set(LLVM_CONFIG ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/llvm-config)
  64 set(LLVM_CONFIG_IN ${CMAKE_CURRENT_BINARY_DIR}/llvm-config.in)
  65
  66 # set(LIBDEPS LibDeps.txt)
  67 # set(LIBDEPS_TMP LibDeps.txt.tmp)
  68 # set(FINAL_LIBDEPS FinalLibDeps.txt)
  69
  70 add_custom_command(OUTPUT ${LIBDEPS_TMP}
  71   COMMAND ${PERL_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/GenLibDeps.pl -flat ${CMAKE_ARCHIVE_OUTPUT_DIRECTORY} > ${LIBDEPS_TMP}
  72   COMMENT "Regenerating ${LIBDEPS_TMP}")
  73
  74 add_custom_command(OUTPUT ${LIBDEPS}
  75   COMMAND cmp -s ${LIBDEPS_TMP} ${LIBDEPS} || \( cp ${LIBDEPS_TMP} ${LIBDEPS} && echo "Updated ${LIBDEPS} because dependencies changed" \)
  76   DEPENDS ${LIBDEPS_TMP})
  77
  78 add_custom_command(OUTPUT ${FINAL_LIBDEPS}
  79   COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/find-cycles.pl < ${LIBDEPS} > ${FINAL_LIBDEPS} || rm -f ${FINAL_LIBDEPS}
  80   DEPENDS ${LIBDEPS}
  81   COMMENT "Checking for cyclic dependencies between LLVM libraries.")
  82
  83 add_custom_command(OUTPUT ${LLVM_CONFIG}
  84   COMMAND echo 's,@LLVM_CPPFLAGS@,${CMAKE_CPP_FLAGS},' > temp.sed
  85   COMMAND echo 's,@LLVM_CFLAGS@,${CMAKE_C_FLAGS},' >> temp.sed
  86   COMMAND echo 's,@LLVM_CXXFLAGS@,${CMAKE_CXX_FLAGS},' >> temp.sed
  87   # TODO: Use general flags for linking, not just for shared libs:
  88   COMMAND echo 's,@LLVM_LDFLAGS@,${CMAKE_SHARED_LINKER_FLAGS},' >> temp.sed
  89   COMMAND echo 's,@LIBS@,,' >> temp.sed                    # TODO: System libs
  90   COMMAND echo 's,@LLVM_BUILDMODE@,${CMAKE_BUILD_TYPE},' >> temp.sed
  91   COMMAND sed -f temp.sed < ${LLVM_CONFIG_IN} > ${LLVM_CONFIG}
  92   COMMAND rm temp.sed
  93   COMMAND cat ${FINAL_LIBDEPS} >> ${LLVM_CONFIG}
  94   COMMAND chmod +x ${LLVM_CONFIG}
  95   COMMAND cd ${LLVM_BINARY_DIR} && ${CMAKE_COMMAND} -U HAVE_LLVM_CONFIG ${LLVM_MAIN_SRC_DIR}
  96   DEPENDS ${FINAL_LIBDEPS} ${LLVM_CONFIG_IN}
  97   COMMENT "Building llvm-config script."
  98   )
  99
 100 add_custom_target(llvm-config.target ALL
 101   DEPENDS ${LLVM_CONFIG})
 102
 103 add_dependencies(llvm-config.target ${llvm_lib_targets})