1include(LLVMParseArguments)
2include(LLVMProcessSources)
3include(LLVM-Config)
4
5function(llvm_update_compile_flags name)
6  get_property(sources TARGET ${name} PROPERTY SOURCES)
7  if("${sources}" MATCHES "\\.c(;|$)")
8    set(update_src_props ON)
9  endif()
10
11  if(LLVM_REQUIRES_EH)
12    set(LLVM_REQUIRES_RTTI ON)
13  else()
14    if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
15      list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions")
16    elseif(MSVC)
17      list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
18      list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
19    endif()
20  endif()
21
22  if(NOT LLVM_REQUIRES_RTTI)
23    list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
24    if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
25      list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
26    elseif (MSVC)
27      list(APPEND LLVM_COMPILE_FLAGS "/GR-")
28    endif ()
29  endif()
30
31  # Assume that;
32  #   - LLVM_COMPILE_FLAGS is list.
33  #   - PROPERTY COMPILE_FLAGS is string.
34  string(REPLACE ";" " " target_compile_flags "${LLVM_COMPILE_FLAGS}")
35
36  if(update_src_props)
37    foreach(fn ${sources})
38      get_filename_component(suf ${fn} EXT)
39      if("${suf}" STREQUAL ".cpp")
40        set_property(SOURCE ${fn} APPEND_STRING PROPERTY
41          COMPILE_FLAGS "${target_compile_flags}")
42      endif()
43    endforeach()
44  else()
45    # Update target props, since all sources are C++.
46    set_property(TARGET ${name} APPEND_STRING PROPERTY
47      COMPILE_FLAGS "${target_compile_flags}")
48  endif()
49
50  set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS ${LLVM_COMPILE_DEFINITIONS})
51endfunction()
52
53function(add_llvm_symbol_exports target_name export_file)
54  if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
55    set(native_export_file "${target_name}.exports")
56    add_custom_command(OUTPUT ${native_export_file}
57      COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file}
58      DEPENDS ${export_file}
59      VERBATIM
60      COMMENT "Creating export file for ${target_name}")
61    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
62                 LINK_FLAGS " -Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
63  elseif(LLVM_HAVE_LINK_VERSION_SCRIPT)
64    # Gold and BFD ld require a version script rather than a plain list.
65    set(native_export_file "${target_name}.exports")
66    # FIXME: Don't write the "local:" line on OpenBSD.
67    add_custom_command(OUTPUT ${native_export_file}
68      COMMAND echo "{" > ${native_export_file}
69      COMMAND grep -q "[[:alnum:]]" ${export_file} && echo "  global:" >> ${native_export_file} || :
70      COMMAND sed -e "s/$/;/" -e "s/^/    /" < ${export_file} >> ${native_export_file}
71      COMMAND echo "  local: *;" >> ${native_export_file}
72      COMMAND echo "};" >> ${native_export_file}
73      DEPENDS ${export_file}
74      VERBATIM
75      COMMENT "Creating export file for ${target_name}")
76    set_property(TARGET ${target_name} APPEND_STRING PROPERTY
77                 LINK_FLAGS "  -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
78  else()
79    set(native_export_file "${target_name}.def")
80
81    set(CAT "type")
82    if(CYGWIN)
83      set(CAT "cat")
84    endif()
85
86    # Using ${export_file} in add_custom_command directly confuses cmd.exe.
87    file(TO_NATIVE_PATH ${export_file} export_file_backslashes)
88
89    add_custom_command(OUTPUT ${native_export_file}
90      COMMAND ${CMAKE_COMMAND} -E echo "EXPORTS" > ${native_export_file}
91      COMMAND ${CAT} ${export_file_backslashes} >> ${native_export_file}
92      DEPENDS ${export_file}
93      VERBATIM
94      COMMENT "Creating export file for ${target_name}")
95    if(CYGWIN OR MINGW)
96      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
97                   LINK_FLAGS " ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
98    else()
99      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
100                   LINK_FLAGS " /DEF:${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
101    endif()
102  endif()
103
104  add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
105  set_target_properties(${target_name}_exports PROPERTIES FOLDER "Misc")
106
107  get_property(srcs TARGET ${target_name} PROPERTY SOURCES)
108  foreach(src ${srcs})
109    get_filename_component(extension ${src} EXT)
110    if(extension STREQUAL ".cpp")
111      set(first_source_file ${src})
112      break()
113    endif()
114  endforeach()
115
116  # Force re-linking when the exports file changes. Actually, it
117  # forces recompilation of the source file. The LINK_DEPENDS target
118  # property only works for makefile-based generators.
119  # FIXME: This is not safe because this will create the same target
120  # ${native_export_file} in several different file:
121  # - One where we emitted ${target_name}_exports
122  # - One where we emitted the build command for the following object.
123  # set_property(SOURCE ${first_source_file} APPEND PROPERTY
124  #   OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
125
126  set_property(DIRECTORY APPEND
127    PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
128
129  add_dependencies(${target_name} ${target_name}_exports)
130endfunction(add_llvm_symbol_exports)
131
132function(add_dead_strip target_name)
133  if(NOT LLVM_NO_DEAD_STRIP)
134    if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
135      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
136                   LINK_FLAGS " -Wl,-dead_strip")
137    elseif(NOT WIN32)
138      # Object files are compiled with -ffunction-data-sections.
139      set_property(TARGET ${target_name} APPEND_STRING PROPERTY
140                   LINK_FLAGS " -Wl,--gc-sections")
141    endif()
142  endif()
143endfunction(add_dead_strip)
144
145# Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
146# Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
147# or a certain builder, for eaxample, msbuild.exe, would be confused.
148function(set_output_directory target bindir libdir)
149  if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
150    foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
151      string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
152      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${bindir})
153      string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${libdir})
154      set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
155      set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
156      set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
157    endforeach()
158  else()
159    set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${bindir})
160    set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${libdir})
161    set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${libdir})
162  endif()
163endfunction()
164
165# llvm_add_library(name sources...
166#   SHARED;STATIC
167#     STATIC by default w/o BUILD_SHARED_LIBS.
168#     SHARED by default w/  BUILD_SHARED_LIBS.
169#   MODULE
170#     Target ${name} might not be created on unsupported platforms.
171#     Check with "if(TARGET ${name})".
172#   OUTPUT_NAME name
173#     Corresponds to OUTPUT_NAME in target properties.
174#   DEPENDS targets...
175#     Same semantics as add_dependencies().
176#   LINK_COMPONENTS components...
177#     Same as the variable LLVM_LINK_COMPONENTS.
178#   LINK_LIBS lib_targets...
179#     Same semantics as target_link_libraries().
180#   ADDITIONAL_HEADERS
181#     May specify header files for IDE generators.
182#   )
183function(llvm_add_library name)
184  cmake_parse_arguments(ARG
185    "MODULE;SHARED;STATIC"
186    "OUTPUT_NAME"
187    "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS"
188    ${ARGN})
189  list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
190  if(ARG_ADDITIONAL_HEADERS)
191    # Pass through ADDITIONAL_HEADERS.
192    set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
193  endif()
194  llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
195
196  if(ARG_MODULE)
197    if(ARG_SHARED OR ARG_STATIC)
198      message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
199    endif()
200    if(NOT LLVM_ON_UNIX OR CYGWIN)
201      message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
202      return()
203    endif()
204  else()
205    if(BUILD_SHARED_LIBS AND NOT ARG_STATIC)
206      set(ARG_SHARED TRUE)
207    endif()
208    if(NOT ARG_SHARED)
209      set(ARG_STATIC TRUE)
210    endif()
211  endif()
212
213  if(ARG_MODULE)
214    add_library(${name} MODULE ${ALL_FILES})
215  elseif(ARG_SHARED)
216    add_library(${name} SHARED ${ALL_FILES})
217  else()
218    add_library(${name} STATIC ${ALL_FILES})
219  endif()
220  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
221  llvm_update_compile_flags(${name})
222  add_dead_strip( ${name} )
223  if(ARG_OUTPUT_NAME)
224    set_target_properties(${name}
225      PROPERTIES
226      OUTPUT_NAME ${ARG_OUTPUT_NAME}
227      )
228  endif()
229
230  if(ARG_MODULE)
231    set_target_properties(${name} PROPERTIES
232      PREFIX ""
233      SUFFIX ${LLVM_PLUGIN_EXT}
234      )
235  endif()
236
237  if(ARG_SHARED)
238    if (MSVC)
239      set_target_properties(${name}
240        PROPERTIES
241        IMPORT_SUFFIX ".imp")
242    endif ()
243  endif()
244
245  if(ARG_MODULE OR ARG_SHARED)
246    if (LLVM_EXPORTED_SYMBOL_FILE)
247      add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
248    endif()
249  endif()
250
251  target_link_libraries(${name} ${ARG_LINK_LIBS})
252
253  llvm_config(${name} ${ARG_LINK_COMPONENTS} ${LLVM_LINK_COMPONENTS})
254
255  if(LLVM_COMMON_DEPENDS)
256    add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
257  endif()
258endfunction()
259
260macro(add_llvm_library name)
261  if( BUILD_SHARED_LIBS )
262    llvm_add_library(${name} SHARED ${ARGN})
263  else()
264    llvm_add_library(${name} ${ARGN})
265  endif()
266  set_property( GLOBAL APPEND PROPERTY LLVM_LIBS ${name} )
267
268  if( EXCLUDE_FROM_ALL )
269    set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
270  else()
271    if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LTO")
272      install(TARGETS ${name}
273        EXPORT LLVMExports
274        LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
275        ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
276    endif()
277    set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
278  endif()
279  set_target_properties(${name} PROPERTIES FOLDER "Libraries")
280
281  # Add the explicit dependency information for this library.
282  #
283  # It would be nice to verify that we have the dependencies for this library
284  # name, but using get_property(... SET) doesn't suffice to determine if a
285  # property has been set to an empty value.
286  get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
287  target_link_libraries(${name} ${lib_deps})
288endmacro(add_llvm_library name)
289
290macro(add_llvm_loadable_module name)
291  llvm_add_library(${name} MODULE ${ARGN})
292  if(NOT TARGET ${name})
293    # Add empty "phony" target
294    add_custom_target(${name})
295  else()
296    if( EXCLUDE_FROM_ALL )
297      set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
298    else()
299      if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
300        install(TARGETS ${name}
301          EXPORT LLVMExports
302          LIBRARY DESTINATION lib${LLVM_LIBDIR_SUFFIX}
303          ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
304      endif()
305      set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
306    endif()
307  endif()
308
309  set_target_properties(${name} PROPERTIES FOLDER "Loadable modules")
310endmacro(add_llvm_loadable_module name)
311
312
313macro(add_llvm_executable name)
314  llvm_process_sources( ALL_FILES ${ARGN} )
315  if( EXCLUDE_FROM_ALL )
316    add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
317  else()
318    add_executable(${name} ${ALL_FILES})
319  endif()
320  llvm_update_compile_flags(${name})
321  add_dead_strip( ${name} )
322
323  if (LLVM_EXPORTED_SYMBOL_FILE)
324    add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
325  endif(LLVM_EXPORTED_SYMBOL_FILE)
326
327  set(EXCLUDE_FROM_ALL OFF)
328  set_output_directory(${name} ${LLVM_RUNTIME_OUTPUT_INTDIR} ${LLVM_LIBRARY_OUTPUT_INTDIR})
329  llvm_config( ${name} ${LLVM_LINK_COMPONENTS} )
330  if( LLVM_COMMON_DEPENDS )
331    add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
332  endif( LLVM_COMMON_DEPENDS )
333endmacro(add_llvm_executable name)
334
335
336set (LLVM_TOOLCHAIN_TOOLS
337  llvm-ar
338  llvm-objdump
339  )
340
341macro(add_llvm_tool name)
342  if( NOT LLVM_BUILD_TOOLS )
343    set(EXCLUDE_FROM_ALL ON)
344  endif()
345  add_llvm_executable(${name} ${ARGN})
346
347  list(FIND LLVM_TOOLCHAIN_TOOLS ${name} LLVM_IS_${name}_TOOLCHAIN_TOOL)
348  if (LLVM_IS_${name}_TOOLCHAIN_TOOL GREATER -1 OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
349    if( LLVM_BUILD_TOOLS )
350      install(TARGETS ${name}
351              EXPORT LLVMExports
352              RUNTIME DESTINATION bin)
353    endif()
354  endif()
355  if( LLVM_BUILD_TOOLS )
356    set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
357  endif()
358  set_target_properties(${name} PROPERTIES FOLDER "Tools")
359endmacro(add_llvm_tool name)
360
361
362macro(add_llvm_example name)
363  if( NOT LLVM_BUILD_EXAMPLES )
364    set(EXCLUDE_FROM_ALL ON)
365  endif()
366  add_llvm_executable(${name} ${ARGN})
367  if( LLVM_BUILD_EXAMPLES )
368    install(TARGETS ${name} RUNTIME DESTINATION examples)
369  endif()
370  set_target_properties(${name} PROPERTIES FOLDER "Examples")
371endmacro(add_llvm_example name)
372
373
374macro(add_llvm_utility name)
375  add_llvm_executable(${name} ${ARGN})
376  set_target_properties(${name} PROPERTIES FOLDER "Utils")
377endmacro(add_llvm_utility name)
378
379
380macro(add_llvm_target target_name)
381  include_directories(BEFORE
382    ${CMAKE_CURRENT_BINARY_DIR}
383    ${CMAKE_CURRENT_SOURCE_DIR})
384  add_llvm_library(LLVM${target_name} ${ARGN} ${TABLEGEN_OUTPUT})
385  set( CURRENT_LLVM_TARGET LLVM${target_name} )
386endmacro(add_llvm_target)
387
388# Add external project that may want to be built as part of llvm such as Clang,
389# lld, and Polly. This adds two options. One for the source directory of the
390# project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
391# enable or disable building it with everything else.
392# Additional parameter can be specified as the name of directory.
393macro(add_llvm_external_project name)
394  set(add_llvm_external_dir "${ARGN}")
395  if("${add_llvm_external_dir}" STREQUAL "")
396    set(add_llvm_external_dir ${name})
397  endif()
398  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}")
399  string(REPLACE "-" "_" nameUNDERSCORE ${name})
400  string(TOUPPER ${nameUNDERSCORE} nameUPPER)
401  set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}"
402      CACHE PATH "Path to ${name} source directory")
403  if (NOT ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} STREQUAL ""
404      AND EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}/CMakeLists.txt)
405    option(LLVM_EXTERNAL_${nameUPPER}_BUILD
406           "Whether to build ${name} as part of LLVM" ON)
407    if (LLVM_EXTERNAL_${nameUPPER}_BUILD)
408      add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
409    endif()
410  endif()
411endmacro(add_llvm_external_project)
412
413macro(add_llvm_tool_subdirectory name)
414  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
415  add_subdirectory(${name})
416endmacro(add_llvm_tool_subdirectory)
417
418macro(ignore_llvm_tool_subdirectory name)
419  list(APPEND LLVM_IMPLICIT_PROJECT_IGNORE "${CMAKE_CURRENT_SOURCE_DIR}/${name}")
420endmacro(ignore_llvm_tool_subdirectory)
421
422function(add_llvm_implicit_external_projects)
423  set(list_of_implicit_subdirs "")
424  file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
425  foreach(dir ${sub-dirs})
426    if(IS_DIRECTORY "${dir}")
427      list(FIND LLVM_IMPLICIT_PROJECT_IGNORE "${dir}" tool_subdir_ignore)
428      if( tool_subdir_ignore EQUAL -1
429          AND EXISTS "${dir}/CMakeLists.txt")
430        get_filename_component(fn "${dir}" NAME)
431        list(APPEND list_of_implicit_subdirs "${fn}")
432      endif()
433    endif()
434  endforeach()
435
436  foreach(external_proj ${list_of_implicit_subdirs})
437    add_llvm_external_project("${external_proj}")
438  endforeach()
439endfunction(add_llvm_implicit_external_projects)
440
441# Generic support for adding a unittest.
442function(add_unittest test_suite test_name)
443  if( NOT LLVM_BUILD_TESTS )
444    set(EXCLUDE_FROM_ALL ON)
445  endif()
446
447  # Visual Studio 2012 only supports up to 8 template parameters in
448  # std::tr1::tuple by default, but gtest requires 10
449  if (MSVC AND MSVC_VERSION EQUAL 1700)
450    list(APPEND LLVM_COMPILE_DEFINITIONS _VARIADIC_MAX=10)
451  endif ()
452
453  include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include)
454  if (NOT LLVM_ENABLE_THREADS)
455    list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_PTHREAD=0)
456  endif ()
457
458  if (SUPPORTS_NO_VARIADIC_MACROS_FLAG)
459    list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros")
460  endif ()
461
462  set(LLVM_REQUIRES_RTTI OFF)
463
464  add_llvm_executable(${test_name} ${ARGN})
465  set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
466  set_output_directory(${test_name} ${outdir} ${outdir})
467  target_link_libraries(${test_name}
468    gtest
469    gtest_main
470    LLVMSupport # gtest needs it for raw_ostream.
471    )
472
473  add_dependencies(${test_suite} ${test_name})
474  get_target_property(test_suite_folder ${test_suite} FOLDER)
475  if (NOT ${test_suite_folder} STREQUAL "NOTFOUND")
476    set_property(TARGET ${test_name} PROPERTY FOLDER "${test_suite_folder}")
477  endif ()
478endfunction()
479
480# This function provides an automatic way to 'configure'-like generate a file
481# based on a set of common and custom variables, specifically targeting the
482# variables needed for the 'lit.site.cfg' files. This function bundles the
483# common variables that any Lit instance is likely to need, and custom
484# variables can be passed in.
485function(configure_lit_site_cfg input output)
486  foreach(c ${LLVM_TARGETS_TO_BUILD})
487    set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
488  endforeach(c)
489  set(TARGETS_TO_BUILD ${TARGETS_BUILT})
490
491  set(SHLIBEXT "${LTDL_SHLIB_EXT}")
492
493  if(BUILD_SHARED_LIBS)
494    set(LLVM_SHARED_LIBS_ENABLED "1")
495  else()
496    set(LLVM_SHARED_LIBS_ENABLED "0")
497  endif(BUILD_SHARED_LIBS)
498
499  if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
500    set(SHLIBPATH_VAR "DYLD_LIBRARY_PATH")
501  else() # Default for all other unix like systems.
502    # CMake hardcodes the library locaction using rpath.
503    # Therefore LD_LIBRARY_PATH is not required to run binaries in the
504    # build dir. We pass it anyways.
505    set(SHLIBPATH_VAR "LD_LIBRARY_PATH")
506  endif()
507
508  # Configuration-time: See Unit/lit.site.cfg.in
509  if (CMAKE_CFG_INTDIR STREQUAL ".")
510    set(LLVM_BUILD_MODE ".")
511  else ()
512    set(LLVM_BUILD_MODE "%(build_mode)s")
513  endif ()
514
515  # They below might not be the build tree but provided binary tree.
516  set(LLVM_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
517  set(LLVM_BINARY_DIR ${LLVM_BINARY_DIR})
518  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} LLVM_TOOLS_DIR ${LLVM_TOOLS_BINARY_DIR})
519  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} LLVM_LIBS_DIR  ${LLVM_LIBRARY_DIR})
520
521  # SHLIBDIR points the build tree.
522  string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} SHLIBDIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
523
524  set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
525  set(ENABLE_SHARED ${LLVM_SHARED_LIBS_ENABLED})
526  set(SHLIBPATH_VAR ${SHLIBPATH_VAR})
527
528  if(LLVM_ENABLE_ASSERTIONS AND NOT MSVC_IDE)
529    set(ENABLE_ASSERTIONS "1")
530  else()
531    set(ENABLE_ASSERTIONS "0")
532  endif()
533
534  set(HOST_OS ${CMAKE_SYSTEM_NAME})
535  set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
536
537  if (CLANG_ENABLE_ARCMT)
538    set(ENABLE_CLANG_ARCMT "1")
539  else()
540    set(ENABLE_CLANG_ARCMT "0")
541  endif()
542  if (CLANG_ENABLE_REWRITER)
543    set(ENABLE_CLANG_REWRITER "1")
544  else()
545    set(ENABLE_CLANG_REWRITER "0")
546  endif()
547  if (CLANG_ENABLE_STATIC_ANALYZER)
548    set(ENABLE_CLANG_STATIC_ANALYZER "1")
549  else()
550    set(ENABLE_CLANG_STATIC_ANALYZER "0")
551  endif()
552
553  configure_file(${input} ${output} @ONLY)
554endfunction()
555
556# A raw function to create a lit target. This is used to implement the testuite
557# management functions.
558function(add_lit_target target comment)
559  parse_arguments(ARG "PARAMS;DEPENDS;ARGS" "" ${ARGN})
560  set(LIT_ARGS "${ARG_ARGS} ${LLVM_LIT_ARGS}")
561  separate_arguments(LIT_ARGS)
562  if (NOT CMAKE_CFG_INTDIR STREQUAL ".")
563    list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR})
564  endif ()
565  set(LIT_COMMAND
566    ${PYTHON_EXECUTABLE}
567    ${LLVM_MAIN_SRC_DIR}/utils/lit/lit.py
568    ${LIT_ARGS}
569    )
570  foreach(param ${ARG_PARAMS})
571    list(APPEND LIT_COMMAND --param ${param})
572  endforeach()
573  if( ARG_DEPENDS )
574    add_custom_target(${target}
575      COMMAND ${LIT_COMMAND} ${ARG_DEFAULT_ARGS}
576      COMMENT "${comment}"
577      )
578    add_dependencies(${target} ${ARG_DEPENDS})
579  else()
580    add_custom_target(${target}
581      COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.")
582    message(STATUS "${target} does nothing.")
583  endif()
584
585  # Tests should be excluded from "Build Solution".
586  set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)
587endfunction()
588
589# A function to add a set of lit test suites to be driven through 'check-*' targets.
590function(add_lit_testsuite target comment)
591  parse_arguments(ARG "PARAMS;DEPENDS;ARGS" "" ${ARGN})
592
593  # EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.
594  if(NOT EXCLUDE_FROM_ALL)
595    # Register the testsuites, params and depends for the global check rule.
596    set_property(GLOBAL APPEND PROPERTY LLVM_LIT_TESTSUITES ${ARG_DEFAULT_ARGS})
597    set_property(GLOBAL APPEND PROPERTY LLVM_LIT_PARAMS ${ARG_PARAMS})
598    set_property(GLOBAL APPEND PROPERTY LLVM_LIT_DEPENDS ${ARG_DEPENDS})
599    set_property(GLOBAL APPEND PROPERTY LLVM_LIT_EXTRA_ARGS ${ARG_ARGS})
600  endif()
601
602  # Produce a specific suffixed check rule.
603  add_lit_target(${target} ${comment}
604    ${ARG_DEFAULT_ARGS}
605    PARAMS ${ARG_PARAMS}
606    DEPENDS ${ARG_DEPENDS}
607    ARGS ${ARG_ARGS}
608    )
609endfunction()
610