1 # See docs/CMake.html for instructions about how to build LLVM with CMake.
4 cmake_minimum_required(VERSION 2.8)
6 # Add path for custom modules
9 "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
10 "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
13 set(LLVM_VERSION_MAJOR 3)
14 set(LLVM_VERSION_MINOR 1)
16 set(PACKAGE_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}svn")
18 set_property(GLOBAL PROPERTY USE_FOLDERS ON)
20 include(VersionFromVCS)
22 option(LLVM_APPEND_VC_REV
23 "Append the version control system revision id to LLVM version" OFF)
25 if( LLVM_APPEND_VC_REV )
26 add_version_info_from_vcs(PACKAGE_VERSION)
29 set(PACKAGE_NAME LLVM)
30 set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
31 set(PACKAGE_BUGREPORT "http://llvm.org/bugs/")
33 # Sanity check our source directory to make sure that we are not trying to
34 # generate an in-tree build (unless on MSVC_IDE, where it is ok), and to make
35 # sure that we don't have any stray generated files lying around in the tree
36 # (which would end up getting picked up by header search, instead of the correct
38 if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
39 message(FATAL_ERROR "In-source builds are not allowed.
40 CMake would overwrite the makefiles distributed with LLVM.
41 Please create a directory and run cmake from there, passing the path
42 to this source directory as the last argument.
43 This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
46 if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
48 tablegenned_files_on_include_dir
49 "${CMAKE_CURRENT_SOURCE_DIR}/include/llvm/*.gen")
51 tablegenned_files_on_lib_dir
52 "${CMAKE_CURRENT_SOURCE_DIR}/lib/Target/*.inc")
53 if( tablegenned_files_on_include_dir OR tablegenned_files_on_lib_dir)
54 message(FATAL_ERROR "Apparently there is a previous in-source build,
55 probably as the result of running `configure' and `make' on
56 ${CMAKE_CURRENT_SOURCE_DIR}.
57 This may cause problems. The suspicious files are:
58 ${tablegenned_files_on_lib_dir}
59 ${tablegenned_files_on_include_dir}
60 Please clean the source directory.")
64 string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
66 set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
67 set(LLVM_MAIN_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/include)
68 set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
69 set(LLVM_TOOLS_BINARY_DIR ${LLVM_BINARY_DIR}/bin)
70 set(LLVM_EXAMPLES_BINARY_DIR ${LLVM_BINARY_DIR}/examples)
71 set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )
89 # List of targets with JIT support:
90 set(LLVM_TARGETS_WITH_JIT X86 PowerPC ARM Mips)
93 set(LLVM_TARGETS_TO_BUILD X86
94 CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
96 set(LLVM_TARGETS_TO_BUILD "all"
97 CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
100 option(BUILD_SHARED_LIBS
101 "Build all libraries as shared libraries instead of static" OFF)
103 option(LLVM_ENABLE_CBE_PRINTF_A "Set to ON if CBE is enabled for printf %a output" ON)
104 if(LLVM_ENABLE_CBE_PRINTF_A)
105 set(ENABLE_CBE_PRINTF_A 1)
108 option(LLVM_ENABLE_TIMESTAMPS "Enable embedding timestamp information in build" ON)
109 if(LLVM_ENABLE_TIMESTAMPS)
110 set(ENABLE_TIMESTAMPS 1)
113 option(LLVM_ENABLE_FFI "Use libffi to call external functions from the interpreter" OFF)
114 set(FFI_LIBRARY_DIR "" CACHE PATH "Additional directory, where CMake should search for libffi.so")
115 set(FFI_INCLUDE_DIR "" CACHE PATH "Additional directory, where CMake should search for ffi.h or ffi/ffi.h")
117 set(LLVM_TARGET_ARCH "host"
118 CACHE STRING "Set target to use for LLVM JIT or use \"host\" for automatic detection.")
120 option(LLVM_ENABLE_THREADS "Use threads if available." ON)
122 if( LLVM_TARGETS_TO_BUILD STREQUAL "all" )
123 set( LLVM_TARGETS_TO_BUILD ${LLVM_ALL_TARGETS} )
126 set(LLVM_ENUM_TARGETS "")
127 foreach(c ${LLVM_TARGETS_TO_BUILD})
128 list(FIND LLVM_ALL_TARGETS ${c} idx)
130 message(FATAL_ERROR "The target `${c}' does not exist.
131 It should be one of\n${LLVM_ALL_TARGETS}")
133 set(LLVM_ENUM_TARGETS "${LLVM_ENUM_TARGETS}LLVM_TARGET(${c})\n")
137 set(llvm_builded_incs_dir ${LLVM_BINARY_DIR}/include/llvm)
139 include(AddLLVMDefinitions)
141 option(LLVM_ENABLE_PIC "Build Position-Independent Code" ON)
143 # MSVC has a gazillion warnings with this.
145 option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." OFF)
147 option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
150 option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
151 option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
153 if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
154 option(LLVM_ENABLE_ASSERTIONS "Enable assertions" OFF)
156 option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON)
159 # Define an option controlling whether we should build for 32-bit on 64-bit
160 # platforms, where supported.
161 if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
162 # TODO: support other platforms and toolchains.
163 option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
166 # Define the default arguments to use with 'lit', and an option for the user to
168 set(LIT_ARGS_DEFAULT "-sv")
170 set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
172 set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
174 # On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
175 if( WIN32 AND NOT CYGWIN )
176 set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
179 # On Win32 using MS tools, provide an option to set the number of parallel jobs
181 if( MSVC_IDE AND ( MSVC90 OR MSVC10 ) )
182 # Only Visual Studio 2008 and 2010 officially supports /MP. Visual Studio
183 # 2005 supports it but it is experimental.
184 set(LLVM_COMPILER_JOBS "0" CACHE STRING
185 "Number of parallel compiler jobs. 0 means use all processors. Default is 0.")
188 # Define options to control the inclusion and default build behavior for
189 # components which may not strictly be necessary (tools, runtime, examples, and
192 # This is primarily to support building smaller or faster project files.
193 option(LLVM_INCLUDE_TOOLS "Generate build targets for the LLVM tools." ON)
194 option(LLVM_BUILD_TOOLS
195 "Build the LLVM tools. If OFF, just generate build targets." ON)
197 option(LLVM_INCLUDE_RUNTIME "Generate build targets for the LLVM runtimes" ON)
198 option(LLVM_BUILD_RUNTIME
199 "Build the LLVM runtime libraries. If OFF, just generate build targets." ON)
201 option(LLVM_BUILD_EXAMPLES
202 "Build the LLVM example programs. If OFF, just generate build targets." OFF)
203 option(LLVM_INCLUDE_EXAMPLES "Generate build targets for the LLVM examples" ON)
205 option(LLVM_BUILD_TESTS
206 "Build LLVM unit tests. If OFF, just generate build targets." OFF)
207 option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
209 # All options referred to from HandleLLVMOptions have to be specified
210 # BEFORE this include, otherwise options will not be correctly set on
213 include(HandleLLVMOptions)
215 # Verify that we can find a Python interpreter,
216 include(FindPythonInterp)
217 if( NOT PYTHONINTERP_FOUND )
219 "Unable to find Python interpreter, required for builds and testing.
221 Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
225 # LLVMBuild Integration
227 # We use llvm-build to generate all the data required by the CMake based
228 # build system in one swoop:
230 # - We generate a file (a CMake fragment) in the object root which contains
231 # all the definitions that are required by CMake.
233 # - We generate the library table used by llvm-config.
235 # - We generate the dependencies for the CMake fragment, so that we will
236 # automatically reconfigure outselves.
238 set(LLVMBUILDTOOL "${LLVM_MAIN_SRC_DIR}/utils/llvm-build/llvm-build")
239 set(LLVMCONFIGLIBRARYDEPENDENCIESINC
240 "${LLVM_BINARY_DIR}/tools/llvm-config/LibraryDependencies.inc")
241 set(LLVMBUILDCMAKEFRAG
242 "${LLVM_BINARY_DIR}/LLVMBuild.cmake")
243 message(STATUS "Constructing LLVMBuild project information")
245 COMMAND ${PYTHON_EXECUTABLE} ${LLVMBUILDTOOL}
246 --native-target "${LLVM_NATIVE_ARCH}"
247 --enable-targets "${LLVM_TARGETS_TO_BUILD}"
248 --write-library-table ${LLVMCONFIGLIBRARYDEPENDENCIESINC}
249 --write-cmake-fragment ${LLVMBUILDCMAKEFRAG}
250 ERROR_VARIABLE LLVMBUILDOUTPUT
251 ERROR_VARIABLE LLVMBUILDERRORS
252 OUTPUT_STRIP_TRAILING_WHITESPACE
253 ERROR_STRIP_TRAILING_WHITESPACE
254 RESULT_VARIABLE LLVMBUILDRESULT)
256 # On Win32, CMake doesn't properly handle piping the default output/error
257 # streams into the GUI console. So, we explicitly catch and report them.
258 if( NOT "${LLVMBUILDOUTPUT}" STREQUAL "")
259 message(STATUS "llvm-build output: ${LLVMBUILDOUTPUT}")
261 if( NOT "${LLVMBUILDRESULT}" STREQUAL "0" )
263 "Unexpected failure executing llvm-build: ${LLVMBUILDERRORS}")
266 # Include the generated CMake fragment. This will define properties from the
267 # LLVMBuild files in a format which is easy to consume from CMake, and will add
268 # the dependencies so that CMake will reconfigure properly when the LLVMBuild
270 include(${LLVMBUILDCMAKEFRAG})
274 # Configure all of the various header file fragments LLVM uses which depend on
275 # configuration variables.
276 set(LLVM_ENUM_ASM_PRINTERS "")
277 set(LLVM_ENUM_ASM_PARSERS "")
278 set(LLVM_ENUM_DISASSEMBLERS "")
279 foreach(t ${LLVM_TARGETS_TO_BUILD})
280 set( td ${LLVM_MAIN_SRC_DIR}/lib/Target/${t} )
281 file(GLOB asmp_file "${td}/*AsmPrinter.cpp")
283 set(LLVM_ENUM_ASM_PRINTERS
284 "${LLVM_ENUM_ASM_PRINTERS}LLVM_ASM_PRINTER(${t})\n")
286 if( EXISTS ${td}/AsmParser/CMakeLists.txt )
287 set(LLVM_ENUM_ASM_PARSERS
288 "${LLVM_ENUM_ASM_PARSERS}LLVM_ASM_PARSER(${t})\n")
290 if( EXISTS ${td}/Disassembler/CMakeLists.txt )
291 set(LLVM_ENUM_DISASSEMBLERS
292 "${LLVM_ENUM_DISASSEMBLERS}LLVM_DISASSEMBLER(${t})\n")
296 # Produce the target definition files, which provide a way for clients to easily
297 # include various classes of targets.
299 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmPrinters.def.in
300 ${LLVM_BINARY_DIR}/include/llvm/Config/AsmPrinters.def
303 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmParsers.def.in
304 ${LLVM_BINARY_DIR}/include/llvm/Config/AsmParsers.def
307 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Disassemblers.def.in
308 ${LLVM_BINARY_DIR}/include/llvm/Config/Disassemblers.def
311 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Targets.def.in
312 ${LLVM_BINARY_DIR}/include/llvm/Config/Targets.def
315 # Configure the three LLVM configuration header files.
317 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/config.h.cmake
318 ${LLVM_BINARY_DIR}/include/llvm/Config/config.h)
320 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/llvm-config.h.cmake
321 ${LLVM_BINARY_DIR}/include/llvm/Config/llvm-config.h)
323 ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/DataTypes.h.cmake
324 ${LLVM_BINARY_DIR}/include/llvm/Support/DataTypes.h)
326 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR} )
327 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
328 set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
330 set(CMAKE_INCLUDE_CURRENT_DIR ON)
332 include_directories( ${LLVM_BINARY_DIR}/include ${LLVM_MAIN_INCLUDE_DIR})
334 if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
335 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -include llvm/Support/Solaris.h")
336 endif( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
342 # People report that -O3 is unreliable on MinGW. The traditional
343 # build also uses -O2 for that reason:
344 llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
347 # Put this before tblgen. Else we have a circular dependence.
348 add_subdirectory(lib/Support)
349 add_subdirectory(lib/TableGen)
351 add_subdirectory(utils/TableGen)
353 add_subdirectory(include/llvm)
355 add_subdirectory(lib)
357 add_subdirectory(utils/FileCheck)
358 add_subdirectory(utils/FileUpdate)
359 add_subdirectory(utils/count)
360 add_subdirectory(utils/not)
361 add_subdirectory(utils/llvm-lit)
362 add_subdirectory(utils/json-bench)
364 add_subdirectory(projects)
366 if( LLVM_INCLUDE_TOOLS )
367 add_subdirectory(tools)
370 if( LLVM_INCLUDE_RUNTIME )
371 add_subdirectory(runtime)
374 if( LLVM_INCLUDE_EXAMPLES )
375 add_subdirectory(examples)
378 if( LLVM_INCLUDE_TESTS )
379 add_subdirectory(test)
380 add_subdirectory(utils/unittest)
381 add_subdirectory(unittests)
383 # This utility is used to prevent chrashing tests from calling Dr. Watson on
385 add_subdirectory(utils/KillTheDoctor)
389 add_subdirectory(cmake/modules)
391 install(DIRECTORY include/
398 PATTERN "LICENSE.TXT"
399 PATTERN ".svn" EXCLUDE
402 install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/
409 # Exclude include/llvm/CMakeFiles/intrinsics_gen.dir, matched by "*.def"
410 PATTERN "CMakeFiles" EXCLUDE
411 PATTERN ".svn" EXCLUDE
414 # TODO: make and install documentation.
416 set(CPACK_PACKAGE_VENDOR "LLVM")
417 set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
418 set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
419 add_version_info_from_vcs(CPACK_PACKAGE_VERSION_PATCH)
422 # Workaround for MSVS10 to avoid the Dialog Hell
423 # FIXME: This could be removed with future version of CMake.
424 if(MSVC_VERSION EQUAL 1600)
425 set(LLVM_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/LLVM.sln")
426 if( EXISTS "${LLVM_SLN_FILENAME}" )
427 file(APPEND "${LLVM_SLN_FILENAME}" "\n# This should be regenerated!\n")