1# See docs/CMake.html for instructions about how to build LLVM with CMake.
2
3project(LLVM)
4cmake_minimum_required(VERSION 2.8)
5
6# Add path for custom modules
7set(CMAKE_MODULE_PATH
8  ${CMAKE_MODULE_PATH}
9  "${CMAKE_CURRENT_SOURCE_DIR}/cmake"
10  "${CMAKE_CURRENT_SOURCE_DIR}/cmake/modules"
11  )
12
13set(LLVM_VERSION_MAJOR 3)
14set(LLVM_VERSION_MINOR 2)
15
16set(PACKAGE_VERSION "${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}svn")
17
18option(LLVM_USE_FOLDERS "Enable solution folders in Visual Studio. Disable for Express versions." ON)
19if ( LLVM_USE_FOLDERS )
20  set_property(GLOBAL PROPERTY USE_FOLDERS ON)
21endif()
22
23include(VersionFromVCS)
24
25option(LLVM_APPEND_VC_REV
26  "Append the version control system revision id to LLVM version" OFF)
27
28if( LLVM_APPEND_VC_REV )
29  add_version_info_from_vcs(PACKAGE_VERSION)
30endif()
31
32set(PACKAGE_NAME LLVM)
33set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")
34set(PACKAGE_BUGREPORT "http://llvm.org/bugs/")
35
36# Sanity check our source directory to make sure that we are not trying to
37# generate an in-tree build (unless on MSVC_IDE, where it is ok), and to make
38# sure that we don't have any stray generated files lying around in the tree
39# (which would end up getting picked up by header search, instead of the correct
40# versions).
41if( CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR AND NOT MSVC_IDE )
42  message(FATAL_ERROR "In-source builds are not allowed.
43CMake would overwrite the makefiles distributed with LLVM.
44Please create a directory and run cmake from there, passing the path
45to this source directory as the last argument.
46This process created the file `CMakeCache.txt' and the directory `CMakeFiles'.
47Please delete them.")
48endif()
49if( NOT CMAKE_SOURCE_DIR STREQUAL CMAKE_BINARY_DIR )
50  file(GLOB_RECURSE
51    tablegenned_files_on_include_dir
52    "${CMAKE_CURRENT_SOURCE_DIR}/include/llvm/*.gen")
53  file(GLOB_RECURSE
54    tablegenned_files_on_lib_dir
55    "${CMAKE_CURRENT_SOURCE_DIR}/lib/Target/*.inc")
56  if( tablegenned_files_on_include_dir OR tablegenned_files_on_lib_dir)
57    message(FATAL_ERROR "Apparently there is a previous in-source build,
58probably as the result of running `configure' and `make' on
59${CMAKE_CURRENT_SOURCE_DIR}.
60This may cause problems. The suspicious files are:
61${tablegenned_files_on_lib_dir}
62${tablegenned_files_on_include_dir}
63Please clean the source directory.")
64  endif()
65endif()
66
67string(TOUPPER "${CMAKE_BUILD_TYPE}" uppercase_CMAKE_BUILD_TYPE)
68
69set(LLVM_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR})
70set(LLVM_MAIN_INCLUDE_DIR ${LLVM_MAIN_SRC_DIR}/include)
71set(LLVM_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
72set(LLVM_TOOLS_BINARY_DIR ${LLVM_BINARY_DIR}/bin)
73set(LLVM_EXAMPLES_BINARY_DIR ${LLVM_BINARY_DIR}/examples)
74set(LLVM_LIBDIR_SUFFIX "" CACHE STRING "Define suffix of library directory name (32/64)" )
75
76set(LLVM_ALL_TARGETS
77  ARM
78  CellSPU
79  CppBackend
80  Hexagon
81  Mips
82  MBlaze
83  MSP430
84  NVPTX
85  PowerPC
86  Sparc
87  X86
88  XCore
89  )
90
91# List of targets with JIT support:
92set(LLVM_TARGETS_WITH_JIT X86 PowerPC ARM Mips)
93
94if( MSVC )
95  set(LLVM_TARGETS_TO_BUILD X86
96    CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
97else( MSVC )
98  set(LLVM_TARGETS_TO_BUILD "all"
99    CACHE STRING "Semicolon-separated list of targets to build, or \"all\".")
100endif( MSVC )
101
102set(LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ""
103  CACHE STRING "Semicolon-separated list of experimental targets to build.")
104
105option(BUILD_SHARED_LIBS
106  "Build all libraries as shared libraries instead of static" OFF)
107
108option(LLVM_ENABLE_CBE_PRINTF_A "Set to ON if CBE is enabled for printf %a output" ON)
109if(LLVM_ENABLE_CBE_PRINTF_A)
110  set(ENABLE_CBE_PRINTF_A 1)
111endif()
112
113option(LLVM_ENABLE_TIMESTAMPS "Enable embedding timestamp information in build" ON)
114if(LLVM_ENABLE_TIMESTAMPS)
115  set(ENABLE_TIMESTAMPS 1)
116endif()
117
118option(LLVM_ENABLE_FFI "Use libffi to call external functions from the interpreter" OFF)
119set(FFI_LIBRARY_DIR "" CACHE PATH "Additional directory, where CMake should search for libffi.so")
120set(FFI_INCLUDE_DIR "" CACHE PATH "Additional directory, where CMake should search for ffi.h or ffi/ffi.h")
121
122set(LLVM_TARGET_ARCH "host"
123  CACHE STRING "Set target to use for LLVM JIT or use \"host\" for automatic detection.")
124
125option(LLVM_ENABLE_THREADS "Use threads if available." ON)
126
127if( LLVM_TARGETS_TO_BUILD STREQUAL "all" )
128  set( LLVM_TARGETS_TO_BUILD ${LLVM_ALL_TARGETS} )
129endif()
130
131set(LLVM_TARGETS_TO_BUILD
132   ${LLVM_TARGETS_TO_BUILD}
133   ${LLVM_EXPERIMENTAL_TARGETS_TO_BUILD})
134
135set(LLVM_ENUM_TARGETS "")
136foreach(c ${LLVM_TARGETS_TO_BUILD})
137  list(FIND LLVM_ALL_TARGETS ${c} idx)
138  list(FIND LLVM_EXPERIMENTAL_TARGETS_TO_BUILD ${c} idy)
139  if( idx LESS 0 AND idy LESS 0 )
140    message(FATAL_ERROR "The target `${c}' does not exist.
141    It should be one of\n${LLVM_ALL_TARGETS}")
142  else()
143    set(LLVM_ENUM_TARGETS "${LLVM_ENUM_TARGETS}LLVM_TARGET(${c})\n")
144  endif()
145endforeach(c)
146
147set(llvm_builded_incs_dir ${LLVM_BINARY_DIR}/include/llvm)
148
149include(AddLLVMDefinitions)
150
151option(LLVM_ENABLE_PIC "Build Position-Independent Code" ON)
152
153# MSVC has a gazillion warnings with this.
154if( MSVC )
155  option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." OFF)
156else( MSVC )
157  option(LLVM_ENABLE_WARNINGS "Enable compiler warnings." ON)
158endif()
159
160option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
161option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
162
163if( uppercase_CMAKE_BUILD_TYPE STREQUAL "RELEASE" )
164  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" OFF)
165else()
166  option(LLVM_ENABLE_ASSERTIONS "Enable assertions" ON)
167endif()
168
169option(LLVM_USE_INTEL_JITEVENTS
170  "Use Intel JIT API to inform Intel(R) VTune(TM) Amplifier XE 2011 about JIT code"
171  OFF)
172
173if( LLVM_USE_INTEL_JITEVENTS )
174  # Verify we are on a supported platform
175  if( CMAKE_SYSTEM_NAME MATCHES "Windows" OR CMAKE_SYSTEM_NAME MATCHES "Linux" )
176    # Directory where Intel Parallel Amplifier XE 2011 is installed.
177    if ( WIN32 )
178      set(LLVM_INTEL_JITEVENTS_DIR $ENV{VTUNE_AMPLIFIER_XE_2011_DIR})
179    else ( WIN32 )
180      set(LLVM_INTEL_JITEVENTS_DIR "/opt/intel/vtune_amplifier_xe_2011")
181    endif ( WIN32 )
182
183    # Set include and library search paths for Intel JIT Events API
184    set(LLVM_INTEL_JITEVENTS_INCDIR "${LLVM_INTEL_JITEVENTS_DIR}/include")
185
186    if ( CMAKE_SIZEOF_VOID_P EQUAL 8 )
187      set(LLVM_INTEL_JITEVENTS_LIBDIR "${LLVM_INTEL_JITEVENTS_DIR}/lib64")
188    else ( CMAKE_SIZEOF_VOID_P EQUAL 8 )
189      set(LLVM_INTEL_JITEVENTS_LIBDIR "${LLVM_INTEL_JITEVENTS_DIR}/lib32")
190    endif ( CMAKE_SIZEOF_VOID_P EQUAL 8 )
191  else()
192    message(FATAL_ERROR
193      "Intel JIT API support is available on Linux and Windows only.")
194  endif()
195endif( LLVM_USE_INTEL_JITEVENTS )
196
197option(LLVM_USE_OPROFILE
198  "Use opagent JIT interface to inform OProfile about JIT code" OFF)
199
200# If enabled, ierify we are on a platform that supports oprofile.
201if( LLVM_USE_OPROFILE )
202  if( NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
203    message(FATAL_ERROR "OProfile support is available on Linux only.") 
204  endif( NOT CMAKE_SYSTEM_NAME MATCHES "Linux" )
205endif( LLVM_USE_OPROFILE )
206
207# Define an option controlling whether we should build for 32-bit on 64-bit
208# platforms, where supported.
209if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
210  # TODO: support other platforms and toolchains.
211  option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
212endif()
213
214# Define the default arguments to use with 'lit', and an option for the user to
215# override.
216set(LIT_ARGS_DEFAULT "-sv")
217if (MSVC OR XCODE)
218  set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
219endif()
220set(LLVM_LIT_ARGS "${LIT_ARGS_DEFAULT}" CACHE STRING "Default options for lit")
221
222# On Win32 hosts, provide an option to specify the path to the GnuWin32 tools.
223if( WIN32 AND NOT CYGWIN )
224  set(LLVM_LIT_TOOLS_DIR "" CACHE PATH "Path to GnuWin32 tools")
225endif()
226
227# Define options to control the inclusion and default build behavior for
228# components which may not strictly be necessary (tools, runtime, examples, and
229# tests).
230#
231# This is primarily to support building smaller or faster project files.
232option(LLVM_INCLUDE_TOOLS "Generate build targets for the LLVM tools." ON)
233option(LLVM_BUILD_TOOLS
234  "Build the LLVM tools. If OFF, just generate build targets." ON)
235
236option(LLVM_INCLUDE_RUNTIME "Generate build targets for the LLVM runtimes" ON)
237option(LLVM_BUILD_RUNTIME
238  "Build the LLVM runtime libraries. If OFF, just generate build targets." ON)
239
240option(LLVM_BUILD_EXAMPLES
241  "Build the LLVM example programs. If OFF, just generate build targets." OFF)
242option(LLVM_INCLUDE_EXAMPLES "Generate build targets for the LLVM examples" ON)
243
244option(LLVM_BUILD_TESTS
245  "Build LLVM unit tests. If OFF, just generate build targets." OFF)
246option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
247
248# All options referred to from HandleLLVMOptions have to be specified
249# BEFORE this include, otherwise options will not be correctly set on
250# first cmake run
251include(config-ix)
252
253# By default, we target the host, but this can be overridden at CMake
254# invocation time.
255set(LLVM_DEFAULT_TARGET_TRIPLE "${LLVM_HOST_TRIPLE}" CACHE STRING
256  "Default target for which LLVM will generate code." )
257set(TARGET_TRIPLE "${LLVM_DEFAULT_TARGET_TRIPLE}" CACHE STRING
258  "Default target for which LLVM will generate code." )
259
260include(HandleLLVMOptions)
261
262# Verify that we can find a Python interpreter,
263include(FindPythonInterp)
264if( NOT PYTHONINTERP_FOUND )
265  message(FATAL_ERROR
266"Unable to find Python interpreter, required for builds and testing.
267
268Please install Python or specify the PYTHON_EXECUTABLE CMake variable.")
269endif()
270
271######
272# LLVMBuild Integration
273#
274# We use llvm-build to generate all the data required by the CMake based
275# build system in one swoop:
276#
277#  - We generate a file (a CMake fragment) in the object root which contains
278#    all the definitions that are required by CMake.
279#
280#  - We generate the library table used by llvm-config.
281#
282#  - We generate the dependencies for the CMake fragment, so that we will
283#    automatically reconfigure outselves.
284
285set(LLVMBUILDTOOL "${LLVM_MAIN_SRC_DIR}/utils/llvm-build/llvm-build")
286set(LLVMCONFIGLIBRARYDEPENDENCIESINC
287  "${LLVM_BINARY_DIR}/tools/llvm-config/LibraryDependencies.inc")
288set(LLVMBUILDCMAKEFRAG
289  "${LLVM_BINARY_DIR}/LLVMBuild.cmake")
290
291# Create the list of optional components that are enabled
292if (LLVM_USE_INTEL_JITEVENTS)
293  set(LLVMOPTIONALCOMPONENTS IntelJITEvents)
294endif (LLVM_USE_INTEL_JITEVENTS)
295if (LLVM_USE_OPROFILE)
296  set(LLVMOPTIONALCOMPONENTS ${LLVMOPTIONALCOMPONENTS} OProfileJIT)
297endif (LLVM_USE_OPROFILE)
298
299message(STATUS "Constructing LLVMBuild project information")
300execute_process(
301  COMMAND ${PYTHON_EXECUTABLE} ${LLVMBUILDTOOL}
302            --native-target "${LLVM_NATIVE_ARCH}"
303            --enable-targets "${LLVM_TARGETS_TO_BUILD}"
304            --enable-optional-components "${LLVMOPTIONALCOMPONENTS}"
305            --write-library-table ${LLVMCONFIGLIBRARYDEPENDENCIESINC}
306            --write-cmake-fragment ${LLVMBUILDCMAKEFRAG}
307            ERROR_VARIABLE LLVMBUILDOUTPUT
308            ERROR_VARIABLE LLVMBUILDERRORS
309            OUTPUT_STRIP_TRAILING_WHITESPACE
310            ERROR_STRIP_TRAILING_WHITESPACE
311  RESULT_VARIABLE LLVMBUILDRESULT)
312
313# On Win32, CMake doesn't properly handle piping the default output/error
314# streams into the GUI console. So, we explicitly catch and report them.
315if( NOT "${LLVMBUILDOUTPUT}" STREQUAL "")
316  message(STATUS "llvm-build output: ${LLVMBUILDOUTPUT}")
317endif()
318if( NOT "${LLVMBUILDRESULT}" STREQUAL "0" )
319  message(FATAL_ERROR
320    "Unexpected failure executing llvm-build: ${LLVMBUILDERRORS}")
321endif()
322
323# Include the generated CMake fragment. This will define properties from the
324# LLVMBuild files in a format which is easy to consume from CMake, and will add
325# the dependencies so that CMake will reconfigure properly when the LLVMBuild
326# files change.
327include(${LLVMBUILDCMAKEFRAG})
328
329######
330
331# Configure all of the various header file fragments LLVM uses which depend on
332# configuration variables.
333set(LLVM_ENUM_ASM_PRINTERS "")
334set(LLVM_ENUM_ASM_PARSERS "")
335set(LLVM_ENUM_DISASSEMBLERS "")
336foreach(t ${LLVM_TARGETS_TO_BUILD})
337  set( td ${LLVM_MAIN_SRC_DIR}/lib/Target/${t} )
338  file(GLOB asmp_file "${td}/*AsmPrinter.cpp")
339  if( asmp_file )
340    set(LLVM_ENUM_ASM_PRINTERS
341      "${LLVM_ENUM_ASM_PRINTERS}LLVM_ASM_PRINTER(${t})\n")
342  endif()
343  if( EXISTS ${td}/AsmParser/CMakeLists.txt )
344    set(LLVM_ENUM_ASM_PARSERS
345      "${LLVM_ENUM_ASM_PARSERS}LLVM_ASM_PARSER(${t})\n")
346  endif()
347  if( EXISTS ${td}/Disassembler/CMakeLists.txt )
348    set(LLVM_ENUM_DISASSEMBLERS
349      "${LLVM_ENUM_DISASSEMBLERS}LLVM_DISASSEMBLER(${t})\n")
350  endif()
351endforeach(t)
352
353# Produce the target definition files, which provide a way for clients to easily
354# include various classes of targets.
355configure_file(
356  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmPrinters.def.in
357  ${LLVM_BINARY_DIR}/include/llvm/Config/AsmPrinters.def
358  )
359configure_file(
360  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/AsmParsers.def.in
361  ${LLVM_BINARY_DIR}/include/llvm/Config/AsmParsers.def
362  )
363configure_file(
364  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Disassemblers.def.in
365  ${LLVM_BINARY_DIR}/include/llvm/Config/Disassemblers.def
366  )
367configure_file(
368  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/Targets.def.in
369  ${LLVM_BINARY_DIR}/include/llvm/Config/Targets.def
370  )
371
372# Configure the three LLVM configuration header files.
373configure_file(
374  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/config.h.cmake
375  ${LLVM_BINARY_DIR}/include/llvm/Config/config.h)
376configure_file(
377  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Config/llvm-config.h.cmake
378  ${LLVM_BINARY_DIR}/include/llvm/Config/llvm-config.h)
379configure_file(
380  ${LLVM_MAIN_INCLUDE_DIR}/llvm/Support/DataTypes.h.cmake
381  ${LLVM_BINARY_DIR}/include/llvm/Support/DataTypes.h)
382
383set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LLVM_TOOLS_BINARY_DIR} )
384set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
385set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
386
387set(CMAKE_INCLUDE_CURRENT_DIR ON)
388
389include_directories( ${LLVM_BINARY_DIR}/include ${LLVM_MAIN_INCLUDE_DIR})
390
391if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
392   SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -include llvm/Support/Solaris.h")
393endif( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )
394
395include(AddLLVM)
396include(TableGen)
397
398if( MINGW )
399  # People report that -O3 is unreliable on MinGW. The traditional
400  # build also uses -O2 for that reason:
401  llvm_replace_compiler_option(CMAKE_CXX_FLAGS_RELEASE "-O3" "-O2")
402endif()
403
404# Put this before tblgen. Else we have a circular dependence.
405add_subdirectory(lib/Support)
406add_subdirectory(lib/TableGen)
407
408add_subdirectory(utils/TableGen)
409
410add_subdirectory(include/llvm)
411
412add_subdirectory(lib)
413
414add_subdirectory(utils/FileCheck)
415add_subdirectory(utils/FileUpdate)
416add_subdirectory(utils/count)
417add_subdirectory(utils/not)
418add_subdirectory(utils/llvm-lit)
419add_subdirectory(utils/yaml-bench)
420add_subdirectory(utils/obj2yaml)
421add_subdirectory(utils/yaml2obj)
422
423add_subdirectory(projects)
424
425if( LLVM_INCLUDE_TOOLS )
426  add_subdirectory(tools)
427endif()
428
429if( LLVM_INCLUDE_RUNTIME )
430  add_subdirectory(runtime)
431endif()
432
433if( LLVM_INCLUDE_EXAMPLES )
434  add_subdirectory(examples)
435endif()
436
437if( LLVM_INCLUDE_TESTS )
438  add_subdirectory(test)
439  add_subdirectory(utils/unittest)
440  add_subdirectory(unittests)
441  if (MSVC)
442    # This utility is used to prevent chrashing tests from calling Dr. Watson on
443    # Windows.
444    add_subdirectory(utils/KillTheDoctor)
445  endif()
446
447  # Add a global check rule now that all subdirectories have been traversed
448  # and we know the total set of lit testsuites.
449  get_property(LLVM_LIT_TESTSUITES GLOBAL PROPERTY LLVM_LIT_TESTSUITES)
450  get_property(LLVM_LIT_PARAMS GLOBAL PROPERTY LLVM_LIT_PARAMS)
451  get_property(LLVM_LIT_DEPENDS GLOBAL PROPERTY LLVM_LIT_DEPENDS)
452  get_property(LLVM_LIT_EXTRA_ARGS GLOBAL PROPERTY LLVM_LIT_EXTRA_ARGS)
453  add_lit_target(check-all
454    "Running all regression tests"
455    ${LLVM_LIT_TESTSUITES}
456    PARAMS ${LLVM_LIT_PARAMS}
457    DEPENDS ${LLVM_LIT_DEPENDS}
458    ARGS ${LLVM_LIT_EXTRA_ARGS}
459    )
460endif()
461
462add_subdirectory(cmake/modules)
463
464install(DIRECTORY include/
465  DESTINATION include
466  FILES_MATCHING
467  PATTERN "*.def"
468  PATTERN "*.h"
469  PATTERN "*.td"
470  PATTERN "*.inc"
471  PATTERN "LICENSE.TXT"
472  PATTERN ".svn" EXCLUDE
473  )
474
475install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/include/
476  DESTINATION include
477  FILES_MATCHING
478  PATTERN "*.def"
479  PATTERN "*.h"
480  PATTERN "*.gen"
481  PATTERN "*.inc"
482  # Exclude include/llvm/CMakeFiles/intrinsics_gen.dir, matched by "*.def"
483  PATTERN "CMakeFiles" EXCLUDE
484  PATTERN ".svn" EXCLUDE
485  )
486
487# TODO: make and install documentation.
488
489set(CPACK_PACKAGE_VENDOR "LLVM")
490set(CPACK_PACKAGE_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
491set(CPACK_PACKAGE_VERSION_MINOR ${LLVM_VERSION_MINOR})
492add_version_info_from_vcs(CPACK_PACKAGE_VERSION_PATCH)
493include(CPack)
494
495# Workaround for MSVS10 to avoid the Dialog Hell
496# FIXME: This could be removed with future version of CMake.
497if(MSVC_VERSION EQUAL 1600)
498  set(LLVM_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/LLVM.sln")
499  if( EXISTS "${LLVM_SLN_FILENAME}" )
500    file(APPEND "${LLVM_SLN_FILENAME}" "\n# This should be regenerated!\n")
501  endif()
502endif()
503