cmake/modules/LLDBStandalone.cmake

   1 # If we are not building as a part of LLVM, build LLDB as an
   2 # standalone project, using LLVM as an external library:
   3 if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
   4   project(lldb)
   5   cmake_minimum_required(VERSION 2.8.12.2)
   6
   7   if (POLICY CMP0022)
   8     cmake_policy(SET CMP0022 NEW) # automatic when 2.8.12 is required
   9   endif()
  10
  11   option(LLVM_INSTALL_TOOLCHAIN_ONLY "Only include toolchain files in the 'install' target." OFF)
  12
  13   # Rely on llvm-config.
  14   set(CONFIG_OUTPUT)
  15   find_program(LLVM_CONFIG "llvm-config")
  16   if(LLVM_CONFIG)
  17     message(STATUS "Found LLVM_CONFIG as ${LLVM_CONFIG}")
  18     set(CONFIG_COMMAND ${LLVM_CONFIG}
  19       "--assertion-mode"
  20       "--bindir"
  21       "--libdir"
  22       "--includedir"
  23       "--prefix"
  24       "--src-root"
  25       "--cmakedir")
  26     execute_process(
  27       COMMAND ${CONFIG_COMMAND}
  28       RESULT_VARIABLE HAD_ERROR
  29       OUTPUT_VARIABLE CONFIG_OUTPUT
  30     )
  31     if(NOT HAD_ERROR)
  32       string(REGEX REPLACE
  33         "[ \t]*[\r\n]+[ \t]*" ";"
  34         CONFIG_OUTPUT ${CONFIG_OUTPUT})
  35
  36     else()
  37       string(REPLACE ";" " " CONFIG_COMMAND_STR "${CONFIG_COMMAND}")
  38       message(STATUS "${CONFIG_COMMAND_STR}")
  39       message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
  40     endif()
  41   else()
  42     message(FATAL_ERROR "llvm-config not found -- ${LLVM_CONFIG}")
  43   endif()
  44
  45   list(GET CONFIG_OUTPUT 0 ENABLE_ASSERTIONS)
  46   list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
  47   list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
  48   list(GET CONFIG_OUTPUT 3 INCLUDE_DIR)
  49   list(GET CONFIG_OUTPUT 4 LLVM_OBJ_ROOT)
  50   list(GET CONFIG_OUTPUT 5 MAIN_SRC_DIR)
  51   list(GET CONFIG_OUTPUT 6 LLVM_CMAKE_PATH)
  52
  53   if(NOT MSVC_IDE)
  54     set(LLVM_ENABLE_ASSERTIONS ${ENABLE_ASSERTIONS}
  55       CACHE BOOL "Enable assertions")
  56     # Assertions should follow llvm-config's.
  57     mark_as_advanced(LLVM_ENABLE_ASSERTIONS)
  58   endif()
  59
  60   set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
  61   set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
  62   set(LLVM_MAIN_INCLUDE_DIR ${INCLUDE_DIR} CACHE PATH "Path to llvm/include")
  63   set(LLVM_DIR ${LLVM_OBJ_ROOT}/cmake/modules/CMakeFiles CACHE PATH "Path to LLVM build tree CMake files")
  64   set(LLVM_BINARY_DIR ${LLVM_OBJ_ROOT} CACHE PATH "Path to LLVM build tree")
  65   set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
  66
  67   find_program(LLVM_TABLEGEN_EXE "llvm-tblgen" ${LLVM_TOOLS_BINARY_DIR}
  68     NO_DEFAULT_PATH)
  69
  70   set(LLVMCONFIG_FILE "${LLVM_CMAKE_PATH}/LLVMConfig.cmake")
  71   if(EXISTS ${LLVMCONFIG_FILE})
  72     list(APPEND CMAKE_MODULE_PATH "${LLVM_CMAKE_PATH}")
  73     include(${LLVMCONFIG_FILE})
  74   else()
  75     message(FATAL_ERROR "Not found: ${LLVMCONFIG_FILE}")
  76   endif()
  77
  78   # They are used as destination of target generators.
  79   set(LLVM_RUNTIME_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/bin)
  80   set(LLVM_LIBRARY_OUTPUT_INTDIR ${CMAKE_BINARY_DIR}/${CMAKE_CFG_INTDIR}/lib${LLVM_LIBDIR_SUFFIX})
  81   if(WIN32 OR CYGWIN)
  82     # DLL platform -- put DLLs into bin.
  83     set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
  84   else()
  85     set(LLVM_SHLIB_OUTPUT_INTDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
  86   endif()
  87
  88   include(AddLLVM)
  89   include(HandleLLVMOptions)
  90   include(CheckAtomic)
  91
  92   if (PYTHON_EXECUTABLE STREQUAL "")
  93     set(Python_ADDITIONAL_VERSIONS 3.5 3.4 3.3 3.2 3.1 3.0 2.7 2.6 2.5)
  94     include(FindPythonInterp)
  95     if( NOT PYTHONINTERP_FOUND )
  96       message(FATAL_ERROR
  97               "Unable to find Python interpreter, required for builds and testing.
  98                Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
  99     endif()
 100   else()
 101     message("-- Found PythonInterp: ${PYTHON_EXECUTABLE}")
 102   endif()
 103
 104   # Import CMake library targets from LLVM and Clang.
 105   include("${LLVM_OBJ_ROOT}/lib${LLVM_LIBDIR_SUFFIX}/cmake/llvm/LLVMConfig.cmake")
 106   # cmake/clang/ClangConfig.cmake is not created when LLVM and Cland are built together.
 107   if (EXISTS "${LLVM_OBJ_ROOT}/lib${LLVM_LIBDIR_SUFFIX}/cmake/clang/ClangConfig.cmake")
 108     include("${LLVM_OBJ_ROOT}/lib${LLVM_LIBDIR_SUFFIX}/cmake/clang/ClangConfig.cmake")
 109   endif()
 110
 111   set(PACKAGE_VERSION "${LLVM_PACKAGE_VERSION}")
 112
 113   set(LLVM_BINARY_DIR ${CMAKE_BINARY_DIR})
 114
 115   set(CMAKE_INCLUDE_CURRENT_DIR ON)
 116   include_directories("${LLVM_BINARY_DIR}/include" "${LLVM_MAIN_INCLUDE_DIR}")
 117   # Next three include directories are needed when llvm-config is located in build directory.
 118   # LLVM and Cland are assumed to be built together
 119   if (EXISTS "${LLVM_OBJ_ROOT}/include")
 120     include_directories("${LLVM_OBJ_ROOT}/include")
 121   endif()
 122   if (EXISTS "${LLVM_MAIN_SRC_DIR}/tools/clang/include")
 123     include_directories("${LLVM_MAIN_SRC_DIR}/tools/clang/include")
 124   endif()
 125   if (EXISTS "${LLVM_OBJ_ROOT}/tools/clang/include")
 126     include_directories("${LLVM_OBJ_ROOT}/tools/clang/include")
 127   endif()
 128   link_directories("${LLVM_LIBRARY_DIR}")
 129
 130   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 131   set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
 132   set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib${LLVM_LIBDIR_SUFFIX})
 133
 134   set(LLDB_BUILT_STANDALONE 1)
 135 endif()