1 include(LLVMProcessSources)
3 include(DetermineGCCCompatible)
5 function(llvm_update_compile_flags name)
6 get_property(sources TARGET ${name} PROPERTY SOURCES)
7 if("${sources}" MATCHES "\\.c(;|$)")
8 set(update_src_props ON)
11 # LLVM_REQUIRES_EH is an internal flag that individual targets can use to
13 if(LLVM_REQUIRES_EH OR LLVM_ENABLE_EH)
14 if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
15 message(AUTHOR_WARNING "Exception handling requires RTTI. Enabling RTTI for ${name}")
16 set(LLVM_REQUIRES_RTTI ON)
19 list(APPEND LLVM_COMPILE_FLAGS "/EHsc")
22 if(LLVM_COMPILER_IS_GCC_COMPATIBLE)
23 list(APPEND LLVM_COMPILE_FLAGS "-fno-exceptions")
25 list(APPEND LLVM_COMPILE_DEFINITIONS _HAS_EXCEPTIONS=0)
26 list(APPEND LLVM_COMPILE_FLAGS "/EHs-c-")
30 # LLVM_REQUIRES_RTTI is an internal flag that individual
31 # targets can use to force RTTI
32 set(LLVM_CONFIG_HAS_RTTI YES CACHE INTERNAL "")
33 if(NOT (LLVM_REQUIRES_RTTI OR LLVM_ENABLE_RTTI))
34 set(LLVM_CONFIG_HAS_RTTI NO CACHE INTERNAL "")
35 list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_RTTI=0)
36 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
37 list(APPEND LLVM_COMPILE_FLAGS "-fno-rtti")
39 list(APPEND LLVM_COMPILE_FLAGS "/GR-")
42 list(APPEND LLVM_COMPILE_FLAGS "/GR")
46 # - LLVM_COMPILE_FLAGS is list.
47 # - PROPERTY COMPILE_FLAGS is string.
48 string(REPLACE ";" " " target_compile_flags " ${LLVM_COMPILE_FLAGS}")
51 foreach(fn ${sources})
52 get_filename_component(suf ${fn} EXT)
53 if("${suf}" STREQUAL ".cpp")
54 set_property(SOURCE ${fn} APPEND_STRING PROPERTY
55 COMPILE_FLAGS "${target_compile_flags}")
59 # Update target props, since all sources are C++.
60 set_property(TARGET ${name} APPEND_STRING PROPERTY
61 COMPILE_FLAGS "${target_compile_flags}")
64 set_property(TARGET ${name} APPEND PROPERTY COMPILE_DEFINITIONS ${LLVM_COMPILE_DEFINITIONS})
67 function(add_llvm_symbol_exports target_name export_file)
68 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
69 set(native_export_file "${target_name}.exports")
70 add_custom_command(OUTPUT ${native_export_file}
71 COMMAND sed -e "s/^/_/" < ${export_file} > ${native_export_file}
72 DEPENDS ${export_file}
74 COMMENT "Creating export file for ${target_name}")
75 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
76 LINK_FLAGS " -Wl,-exported_symbols_list,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
77 elseif(${CMAKE_SYSTEM_NAME} MATCHES "AIX")
78 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
79 LINK_FLAGS " -Wl,-bE:${export_file}")
80 elseif(LLVM_HAVE_LINK_VERSION_SCRIPT)
81 # Gold and BFD ld require a version script rather than a plain list.
82 set(native_export_file "${target_name}.exports")
83 # FIXME: Don't write the "local:" line on OpenBSD.
84 # in the export file, also add a linker script to version LLVM symbols (form: LLVM_N.M)
85 add_custom_command(OUTPUT ${native_export_file}
86 COMMAND echo "LLVM_${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR} {" > ${native_export_file}
87 COMMAND grep -q "[[:alnum:]]" ${export_file} && echo " global:" >> ${native_export_file} || :
88 COMMAND sed -e "s/$/;/" -e "s/^/ /" < ${export_file} >> ${native_export_file}
89 COMMAND echo " local: *;" >> ${native_export_file}
90 COMMAND echo "};" >> ${native_export_file}
91 DEPENDS ${export_file}
93 COMMENT "Creating export file for ${target_name}")
94 if (${LLVM_LINKER_IS_SOLARISLD})
95 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
96 LINK_FLAGS " -Wl,-M,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
98 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
99 LINK_FLAGS " -Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
102 set(native_export_file "${target_name}.def")
104 add_custom_command(OUTPUT ${native_export_file}
105 COMMAND ${PYTHON_EXECUTABLE} -c "import sys;print(''.join(['EXPORTS\\n']+sys.stdin.readlines(),))"
106 < ${export_file} > ${native_export_file}
107 DEPENDS ${export_file}
109 COMMENT "Creating export file for ${target_name}")
110 set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
112 set(export_file_linker_flag "/DEF:\"${export_file_linker_flag}\"")
114 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
115 LINK_FLAGS " ${export_file_linker_flag}")
118 add_custom_target(${target_name}_exports DEPENDS ${native_export_file})
119 set_target_properties(${target_name}_exports PROPERTIES FOLDER "Misc")
121 get_property(srcs TARGET ${target_name} PROPERTY SOURCES)
123 get_filename_component(extension ${src} EXT)
124 if(extension STREQUAL ".cpp")
125 set(first_source_file ${src})
130 # Force re-linking when the exports file changes. Actually, it
131 # forces recompilation of the source file. The LINK_DEPENDS target
132 # property only works for makefile-based generators.
133 # FIXME: This is not safe because this will create the same target
134 # ${native_export_file} in several different file:
135 # - One where we emitted ${target_name}_exports
136 # - One where we emitted the build command for the following object.
137 # set_property(SOURCE ${first_source_file} APPEND PROPERTY
138 # OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file})
140 set_property(DIRECTORY APPEND
141 PROPERTY ADDITIONAL_MAKE_CLEAN_FILES ${native_export_file})
143 add_dependencies(${target_name} ${target_name}_exports)
145 # Add dependency to *_exports later -- CMake issue 14747
146 list(APPEND LLVM_COMMON_DEPENDS ${target_name}_exports)
147 set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)
148 endfunction(add_llvm_symbol_exports)
150 if(NOT WIN32 AND NOT APPLE)
151 # Detect what linker we have here
152 if( LLVM_USE_LINKER )
153 set(command ${CMAKE_C_COMPILER} -fuse-ld=${LLVM_USE_LINKER} -Wl,--version)
155 set(command ${CMAKE_C_COMPILER} -Wl,--version)
159 OUTPUT_VARIABLE stdout
160 ERROR_VARIABLE stderr
162 set(LLVM_LINKER_DETECTED ON)
163 if("${stdout}" MATCHES "GNU gold")
164 set(LLVM_LINKER_IS_GOLD ON)
165 message(STATUS "Linker detection: GNU Gold")
166 elseif("${stdout}" MATCHES "^LLD")
167 set(LLVM_LINKER_IS_LLD ON)
168 message(STATUS "Linker detection: LLD")
169 elseif("${stdout}" MATCHES "GNU ld")
170 set(LLVM_LINKER_IS_GNULD ON)
171 message(STATUS "Linker detection: GNU ld")
172 elseif("${stderr}" MATCHES "Solaris Link Editors")
173 set(LLVM_LINKER_IS_SOLARISLD ON)
174 message(STATUS "Linker detection: Solaris ld")
176 set(LLVM_LINKER_DETECTED OFF)
177 message(STATUS "Linker detection: unknown")
181 function(add_link_opts target_name)
182 # Don't use linker optimizations in debug builds since it slows down the
183 # linker in a context where the optimizations are not important.
184 if (NOT uppercase_CMAKE_BUILD_TYPE STREQUAL "DEBUG")
186 # Pass -O3 to the linker. This enabled different optimizations on different
188 if(NOT (${CMAKE_SYSTEM_NAME} MATCHES "Darwin|SunOS|AIX" OR WIN32))
189 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
190 LINK_FLAGS " -Wl,-O3")
193 if(LLVM_LINKER_IS_GOLD)
194 # With gold gc-sections is always safe.
195 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
196 LINK_FLAGS " -Wl,--gc-sections")
197 # Note that there is a bug with -Wl,--icf=safe so it is not safe
198 # to enable. See https://sourceware.org/bugzilla/show_bug.cgi?id=17704.
201 if(NOT LLVM_NO_DEAD_STRIP)
202 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
203 # ld64's implementation of -dead_strip breaks tools that use plugins.
204 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
205 LINK_FLAGS " -Wl,-dead_strip")
206 elseif(${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
207 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
208 LINK_FLAGS " -Wl,-z -Wl,discard-unused=sections")
209 elseif(NOT WIN32 AND NOT LLVM_LINKER_IS_GOLD)
210 # Object files are compiled with -ffunction-data-sections.
211 # Versions of bfd ld < 2.23.1 have a bug in --gc-sections that breaks
212 # tools that use plugins. Always pass --gc-sections once we require
214 set_property(TARGET ${target_name} APPEND_STRING PROPERTY
215 LINK_FLAGS " -Wl,--gc-sections")
219 endfunction(add_link_opts)
221 # Set each output directory according to ${CMAKE_CONFIGURATION_TYPES}.
222 # Note: Don't set variables CMAKE_*_OUTPUT_DIRECTORY any more,
223 # or a certain builder, for eaxample, msbuild.exe, would be confused.
224 function(set_output_directory target)
225 cmake_parse_arguments(ARG "" "BINARY_DIR;LIBRARY_DIR" "" ${ARGN})
227 # module_dir -- corresponding to LIBRARY_OUTPUT_DIRECTORY.
228 # It affects output of add_library(MODULE).
231 set(module_dir ${ARG_BINARY_DIR})
233 set(module_dir ${ARG_LIBRARY_DIR})
235 if(NOT "${CMAKE_CFG_INTDIR}" STREQUAL ".")
236 foreach(build_mode ${CMAKE_CONFIGURATION_TYPES})
237 string(TOUPPER "${build_mode}" CONFIG_SUFFIX)
239 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} bi ${ARG_BINARY_DIR})
240 set_target_properties(${target} PROPERTIES "RUNTIME_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${bi})
243 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} li ${ARG_LIBRARY_DIR})
244 set_target_properties(${target} PROPERTIES "ARCHIVE_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${li})
247 string(REPLACE ${CMAKE_CFG_INTDIR} ${build_mode} mi ${module_dir})
248 set_target_properties(${target} PROPERTIES "LIBRARY_OUTPUT_DIRECTORY_${CONFIG_SUFFIX}" ${mi})
253 set_target_properties(${target} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${ARG_BINARY_DIR})
256 set_target_properties(${target} PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${ARG_LIBRARY_DIR})
259 set_target_properties(${target} PROPERTIES LIBRARY_OUTPUT_DIRECTORY ${module_dir})
264 # If on Windows and building with MSVC, add the resource script containing the
265 # VERSIONINFO data to the project. This embeds version resource information
266 # into the output .exe or .dll.
267 # TODO: Enable for MinGW Windows builds too.
269 function(add_windows_version_resource_file OUT_VAR)
271 if (MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
272 set(resource_file ${LLVM_SOURCE_DIR}/resources/windows_version_resource.rc)
273 if(EXISTS ${resource_file})
274 set(sources ${sources} ${resource_file})
275 source_group("Resource Files" ${resource_file})
276 set(windows_resource_file ${resource_file} PARENT_SCOPE)
278 endif(MSVC AND CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
280 set(${OUT_VAR} ${sources} PARENT_SCOPE)
281 endfunction(add_windows_version_resource_file)
283 # set_windows_version_resource_properties(name resource_file...
285 # Optional major version number (defaults to LLVM_VERSION_MAJOR)
287 # Optional minor version number (defaults to LLVM_VERSION_MINOR)
288 # VERSION_PATCHLEVEL int
289 # Optional patchlevel version number (defaults to LLVM_VERSION_PATCH)
291 # Optional version string (defaults to PACKAGE_VERSION)
293 # Optional product name string (defaults to "LLVM")
295 function(set_windows_version_resource_properties name resource_file)
296 cmake_parse_arguments(ARG
298 "VERSION_MAJOR;VERSION_MINOR;VERSION_PATCHLEVEL;VERSION_STRING;PRODUCT_NAME"
302 if (NOT DEFINED ARG_VERSION_MAJOR)
303 set(ARG_VERSION_MAJOR ${LLVM_VERSION_MAJOR})
306 if (NOT DEFINED ARG_VERSION_MINOR)
307 set(ARG_VERSION_MINOR ${LLVM_VERSION_MINOR})
310 if (NOT DEFINED ARG_VERSION_PATCHLEVEL)
311 set(ARG_VERSION_PATCHLEVEL ${LLVM_VERSION_PATCH})
314 if (NOT DEFINED ARG_VERSION_STRING)
315 set(ARG_VERSION_STRING ${PACKAGE_VERSION})
318 if (NOT DEFINED ARG_PRODUCT_NAME)
319 set(ARG_PRODUCT_NAME "LLVM")
322 set_property(SOURCE ${resource_file}
323 PROPERTY COMPILE_FLAGS /nologo)
324 set_property(SOURCE ${resource_file}
325 PROPERTY COMPILE_DEFINITIONS
326 "RC_VERSION_FIELD_1=${ARG_VERSION_MAJOR}"
327 "RC_VERSION_FIELD_2=${ARG_VERSION_MINOR}"
328 "RC_VERSION_FIELD_3=${ARG_VERSION_PATCHLEVEL}"
329 "RC_VERSION_FIELD_4=0"
330 "RC_FILE_VERSION=\"${ARG_VERSION_STRING}\""
331 "RC_INTERNAL_NAME=\"${name}\""
332 "RC_PRODUCT_NAME=\"${ARG_PRODUCT_NAME}\""
333 "RC_PRODUCT_VERSION=\"${ARG_VERSION_STRING}\"")
334 endfunction(set_windows_version_resource_properties)
336 # llvm_add_library(name sources...
338 # STATIC by default w/o BUILD_SHARED_LIBS.
339 # SHARED by default w/ BUILD_SHARED_LIBS.
341 # Also create an OBJECT library target. Default if STATIC && SHARED.
343 # Target ${name} might not be created on unsupported platforms.
344 # Check with "if(TARGET ${name})".
345 # DISABLE_LLVM_LINK_LLVM_DYLIB
346 # Do not link this library to libLLVM, even if
347 # LLVM_LINK_LLVM_DYLIB is enabled.
349 # Corresponds to OUTPUT_NAME in target properties.
351 # Same semantics as add_dependencies().
352 # LINK_COMPONENTS components...
353 # Same as the variable LLVM_LINK_COMPONENTS.
354 # LINK_LIBS lib_targets...
355 # Same semantics as target_link_libraries().
357 # May specify header files for IDE generators.
359 # Should set SONAME link flags and create symlinks
361 # The tool (i.e. cmake target) that this plugin will link against
363 function(llvm_add_library name)
364 cmake_parse_arguments(ARG
365 "MODULE;SHARED;STATIC;OBJECT;DISABLE_LLVM_LINK_LLVM_DYLIB;SONAME"
366 "OUTPUT_NAME;PLUGIN_TOOL"
367 "ADDITIONAL_HEADERS;DEPENDS;LINK_COMPONENTS;LINK_LIBS;OBJLIBS"
369 list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
370 if(ARG_ADDITIONAL_HEADERS)
371 # Pass through ADDITIONAL_HEADERS.
372 set(ARG_ADDITIONAL_HEADERS ADDITIONAL_HEADERS ${ARG_ADDITIONAL_HEADERS})
375 set(ALL_FILES ${ARG_OBJLIBS})
377 llvm_process_sources(ALL_FILES ${ARG_UNPARSED_ARGUMENTS} ${ARG_ADDITIONAL_HEADERS})
381 if(ARG_SHARED OR ARG_STATIC)
382 message(WARNING "MODULE with SHARED|STATIC doesn't make sense.")
384 # Plugins that link against a tool are allowed even when plugins in general are not
385 if(NOT LLVM_ENABLE_PLUGINS AND NOT (ARG_PLUGIN_TOOL AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS))
386 message(STATUS "${name} ignored -- Loadable modules not supported on this platform.")
391 message(WARNING "PLUGIN_TOOL without MODULE doesn't make sense.")
393 if(BUILD_SHARED_LIBS AND NOT ARG_STATIC)
402 if((ARG_SHARED AND ARG_STATIC) OR ARG_OBJECT)
403 # Generate an obj library for both targets.
404 set(obj_name "obj.${name}")
405 add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
408 llvm_update_compile_flags(${obj_name})
409 set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
411 # Do add_dependencies(obj) later due to CMake issue 14747.
412 list(APPEND objlibs ${obj_name})
414 set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
417 if(ARG_SHARED AND ARG_STATIC)
419 set(name_static "${name}_static")
421 set(output_name OUTPUT_NAME "${ARG_OUTPUT_NAME}")
423 # DEPENDS has been appended to LLVM_COMMON_LIBS.
424 llvm_add_library(${name_static} STATIC
426 OBJLIBS ${ALL_FILES} # objlib
427 LINK_LIBS ${ARG_LINK_LIBS}
428 LINK_COMPONENTS ${ARG_LINK_COMPONENTS}
430 # FIXME: Add name_static to anywhere in TARGET ${name}'s PROPERTY.
435 add_library(${name} MODULE ${ALL_FILES})
436 llvm_setup_rpath(${name})
438 add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
439 add_library(${name} SHARED ${ALL_FILES})
441 llvm_setup_rpath(${name})
444 add_library(${name} STATIC ${ALL_FILES})
447 setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
449 if(DEFINED windows_resource_file)
450 set_windows_version_resource_properties(${name} ${windows_resource_file})
451 set(windows_resource_file ${windows_resource_file} PARENT_SCOPE)
454 set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
455 # $<TARGET_OBJECTS> doesn't require compile flags.
457 llvm_update_compile_flags(${name})
459 add_link_opts( ${name} )
461 set_target_properties(${name}
463 OUTPUT_NAME ${ARG_OUTPUT_NAME}
468 set_target_properties(${name} PROPERTIES
470 SUFFIX ${LLVM_PLUGIN_EXT}
476 set_target_properties(${name} PROPERTIES
481 # Set SOVERSION on shared libraries that lack explicit SONAME
482 # specifier, on *nix systems that are not Darwin.
483 if(UNIX AND NOT APPLE AND NOT ARG_SONAME)
484 set_target_properties(${name}
486 # Since 4.0.0, the ABI version is indicated by the major version
487 SOVERSION ${LLVM_VERSION_MAJOR}
488 VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
492 if(ARG_MODULE OR ARG_SHARED)
493 # Do not add -Dname_EXPORTS to the command-line when building files in this
494 # target. Doing so is actively harmful for the modules build because it
495 # creates extra module variants, and not useful because we don't use these
497 set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
499 if (LLVM_EXPORTED_SYMBOL_FILE)
500 add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
504 if(ARG_SHARED AND UNIX)
505 if(NOT APPLE AND ARG_SONAME)
506 get_target_property(output_name ${name} OUTPUT_NAME)
507 if(${output_name} STREQUAL "output_name-NOTFOUND")
508 set(output_name ${name})
510 set(library_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}${LLVM_VERSION_SUFFIX})
511 set(api_name ${output_name}-${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
512 set_target_properties(${name} PROPERTIES OUTPUT_NAME ${library_name})
513 llvm_install_library_symlink(${api_name} ${library_name} SHARED
516 llvm_install_library_symlink(${output_name} ${library_name} SHARED
522 if(ARG_MODULE AND LLVM_EXPORT_SYMBOLS_FOR_PLUGINS AND ARG_PLUGIN_TOOL AND (WIN32 OR CYGWIN))
523 # On DLL platforms symbols are imported from the tool by linking against it.
524 set(llvm_libs ${ARG_PLUGIN_TOOL})
525 elseif (DEFINED LLVM_LINK_COMPONENTS OR DEFINED ARG_LINK_COMPONENTS)
526 if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
529 llvm_map_components_to_libnames(llvm_libs
530 ${ARG_LINK_COMPONENTS}
531 ${LLVM_LINK_COMPONENTS}
535 # Components have not been defined explicitly in CMake, so add the
536 # dependency information for this library as defined by LLVMBuild.
538 # It would be nice to verify that we have the dependencies for this library
539 # name, but using get_property(... SET) doesn't suffice to determine if a
540 # property has been set to an empty value.
541 get_property(lib_deps GLOBAL PROPERTY LLVMBUILD_LIB_DEPS_${name})
545 set(libtype INTERFACE)
547 # We can use PRIVATE since SO knows its dependent libs.
551 target_link_libraries(${name} ${libtype}
557 if(LLVM_COMMON_DEPENDS)
558 add_dependencies(${name} ${LLVM_COMMON_DEPENDS})
559 # Add dependencies also to objlibs.
560 # CMake issue 14747 -- add_dependencies() might be ignored to objlib's user.
561 foreach(objlib ${objlibs})
562 add_dependencies(${objlib} ${LLVM_COMMON_DEPENDS})
566 if(ARG_SHARED OR ARG_MODULE)
567 llvm_externalize_debuginfo(${name})
571 macro(add_llvm_library name)
572 cmake_parse_arguments(ARG
573 "SHARED;BUILDTREE_ONLY"
577 if( BUILD_SHARED_LIBS OR ARG_SHARED )
578 llvm_add_library(${name} SHARED ${ARG_UNPARSED_ARGUMENTS})
580 llvm_add_library(${name} ${ARG_UNPARSED_ARGUMENTS})
583 # Libraries that are meant to only be exposed via the build tree only are
584 # never installed and are only exported as a target in the special build tree
586 if (NOT ARG_BUILDTREE_ONLY)
587 set_property( GLOBAL APPEND PROPERTY LLVM_LIBS ${name} )
590 if( EXCLUDE_FROM_ALL )
591 set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
592 elseif(ARG_BUILDTREE_ONLY)
593 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS_BUILDTREE_ONLY ${name})
595 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY OR ${name} STREQUAL "LTO" OR
596 (LLVM_LINK_LLVM_DYLIB AND ${name} STREQUAL "LLVM"))
597 set(install_dir lib${LLVM_LIBDIR_SUFFIX})
598 if(ARG_SHARED OR BUILD_SHARED_LIBS)
599 if(WIN32 OR CYGWIN OR MINGW)
600 set(install_type RUNTIME)
603 set(install_type LIBRARY)
606 set(install_type ARCHIVE)
609 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
610 NOT LLVM_DISTRIBUTION_COMPONENTS)
611 set(export_to_llvmexports EXPORT LLVMExports)
612 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
615 install(TARGETS ${name}
616 ${export_to_llvmexports}
617 ${install_type} DESTINATION ${install_dir}
620 if (NOT CMAKE_CONFIGURATION_TYPES)
621 add_custom_target(install-${name}
623 COMMAND "${CMAKE_COMMAND}"
624 -DCMAKE_INSTALL_COMPONENT=${name}
625 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
628 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
630 set_target_properties(${name} PROPERTIES FOLDER "Libraries")
631 endmacro(add_llvm_library name)
633 macro(add_llvm_loadable_module name)
634 llvm_add_library(${name} MODULE ${ARGN})
635 if(NOT TARGET ${name})
636 # Add empty "phony" target
637 add_custom_target(${name})
639 if( EXCLUDE_FROM_ALL )
640 set_target_properties( ${name} PROPERTIES EXCLUDE_FROM_ALL ON)
642 if (NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
647 set(dlldir "lib${LLVM_LIBDIR_SUFFIX}")
650 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
651 NOT LLVM_DISTRIBUTION_COMPONENTS)
652 set(export_to_llvmexports EXPORT LLVMExports)
653 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
656 install(TARGETS ${name}
657 ${export_to_llvmexports}
658 LIBRARY DESTINATION ${dlldir}
659 ARCHIVE DESTINATION lib${LLVM_LIBDIR_SUFFIX})
661 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
665 set_target_properties(${name} PROPERTIES FOLDER "Loadable modules")
666 endmacro(add_llvm_loadable_module name)
669 macro(add_llvm_executable name)
670 cmake_parse_arguments(ARG "DISABLE_LLVM_LINK_LLVM_DYLIB;IGNORE_EXTERNALIZE_DEBUGINFO;NO_INSTALL_RPATH" "" "DEPENDS" ${ARGN})
671 llvm_process_sources( ALL_FILES ${ARG_UNPARSED_ARGUMENTS} )
673 list(APPEND LLVM_COMMON_DEPENDS ${ARG_DEPENDS})
676 if(LLVM_ENABLE_OBJLIB)
677 # Generate an obj library for both targets.
678 set(obj_name "obj.${name}")
679 add_library(${obj_name} OBJECT EXCLUDE_FROM_ALL
682 llvm_update_compile_flags(${obj_name})
683 set(ALL_FILES "$<TARGET_OBJECTS:${obj_name}>")
685 set_target_properties(${obj_name} PROPERTIES FOLDER "Object Libraries")
688 add_windows_version_resource_file(ALL_FILES ${ALL_FILES})
691 # Note: the dummy.cpp source file provides no definitions. However,
692 # it forces Xcode to properly link the static library.
693 list(APPEND ALL_FILES "${LLVM_MAIN_SRC_DIR}/cmake/dummy.cpp")
696 if( EXCLUDE_FROM_ALL )
697 add_executable(${name} EXCLUDE_FROM_ALL ${ALL_FILES})
699 add_executable(${name} ${ALL_FILES})
702 setup_dependency_debugging(${name} ${LLVM_COMMON_DEPENDS})
704 if(NOT ARG_NO_INSTALL_RPATH)
705 llvm_setup_rpath(${name})
708 if(DEFINED windows_resource_file)
709 set_windows_version_resource_properties(${name} ${windows_resource_file})
712 # $<TARGET_OBJECTS> doesn't require compile flags.
713 if(NOT LLVM_ENABLE_OBJLIB)
714 llvm_update_compile_flags(${name})
716 add_link_opts( ${name} )
718 # Do not add -Dname_EXPORTS to the command-line when building files in this
719 # target. Doing so is actively harmful for the modules build because it
720 # creates extra module variants, and not useful because we don't use these
722 set_target_properties( ${name} PROPERTIES DEFINE_SYMBOL "" )
724 if (LLVM_EXPORTED_SYMBOL_FILE)
725 add_llvm_symbol_exports( ${name} ${LLVM_EXPORTED_SYMBOL_FILE} )
726 endif(LLVM_EXPORTED_SYMBOL_FILE)
728 if (LLVM_LINK_LLVM_DYLIB AND NOT ARG_DISABLE_LLVM_LINK_LLVM_DYLIB)
729 set(USE_SHARED USE_SHARED)
732 set(EXCLUDE_FROM_ALL OFF)
733 set_output_directory(${name} BINARY_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR} LIBRARY_DIR ${LLVM_LIBRARY_OUTPUT_INTDIR})
734 llvm_config( ${name} ${USE_SHARED} ${LLVM_LINK_COMPONENTS} )
735 if( LLVM_COMMON_DEPENDS )
736 add_dependencies( ${name} ${LLVM_COMMON_DEPENDS} )
737 endif( LLVM_COMMON_DEPENDS )
739 if(NOT ARG_IGNORE_EXTERNALIZE_DEBUGINFO)
740 llvm_externalize_debuginfo(${name})
742 if (LLVM_PTHREAD_LIB)
743 # libpthreads overrides some standard library symbols, so main
744 # executable must be linked with it in order to provide consistent
745 # API for all shared libaries loaded by this executable.
746 target_link_libraries(${name} ${LLVM_PTHREAD_LIB})
748 endmacro(add_llvm_executable name)
750 function(export_executable_symbols target)
751 if (LLVM_EXPORTED_SYMBOL_FILE)
752 # The symbol file should contain the symbols we want the executable to
754 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
755 elseif (LLVM_EXPORT_SYMBOLS_FOR_PLUGINS)
756 # Extract the symbols to export from the static libraries that the
757 # executable links against.
758 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
759 set(exported_symbol_file ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${target}.symbols)
760 # We need to consider not just the direct link dependencies, but also the
761 # transitive link dependencies. Do this by starting with the set of direct
762 # dependencies, then the dependencies of those dependencies, and so on.
763 get_target_property(new_libs ${target} LINK_LIBRARIES)
764 set(link_libs ${new_libs})
765 while(NOT "${new_libs}" STREQUAL "")
766 foreach(lib ${new_libs})
768 get_target_property(lib_type ${lib} TYPE)
769 if("${lib_type}" STREQUAL "STATIC_LIBRARY")
770 list(APPEND static_libs ${lib})
772 list(APPEND other_libs ${lib})
774 get_target_property(transitive_libs ${lib} INTERFACE_LINK_LIBRARIES)
775 foreach(transitive_lib ${transitive_libs})
776 list(FIND link_libs ${transitive_lib} idx)
777 if(TARGET ${transitive_lib} AND idx EQUAL -1)
778 list(APPEND newer_libs ${transitive_lib})
779 list(APPEND link_libs ${transitive_lib})
781 endforeach(transitive_lib)
784 set(new_libs ${newer_libs})
788 set(mangling microsoft)
790 set(mangling itanium)
792 add_custom_command(OUTPUT ${exported_symbol_file}
793 COMMAND ${PYTHON_EXECUTABLE} ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py --mangling=${mangling} ${static_libs} -o ${exported_symbol_file}
794 WORKING_DIRECTORY ${LLVM_LIBRARY_OUTPUT_INTDIR}
795 DEPENDS ${LLVM_MAIN_SRC_DIR}/utils/extract_symbols.py ${static_libs}
797 COMMENT "Generating export list for ${target}")
798 add_llvm_symbol_exports( ${target} ${exported_symbol_file} )
799 # If something links against this executable then we want a
800 # transitive link against only the libraries whose symbols
801 # we aren't exporting.
802 set_target_properties(${target} PROPERTIES INTERFACE_LINK_LIBRARIES "${other_libs}")
803 # The default import library suffix that cmake uses for cygwin/mingw is
804 # ".dll.a", but for clang.exe that causes a collision with libclang.dll,
805 # where the import libraries of both get named libclang.dll.a. Use a suffix
806 # of ".exe.a" to avoid this.
808 set_target_properties(${target} PROPERTIES IMPORT_SUFFIX ".exe.a")
810 elseif(NOT (WIN32 OR CYGWIN))
811 # On Windows auto-exporting everything doesn't work because of the limit on
812 # the size of the exported symbol table, but on other platforms we can do
813 # it without any trouble.
814 set_target_properties(${target} PROPERTIES ENABLE_EXPORTS 1)
816 set_property(TARGET ${target} APPEND_STRING PROPERTY
817 LINK_FLAGS " -rdynamic")
822 if(NOT LLVM_TOOLCHAIN_TOOLS)
823 set (LLVM_TOOLCHAIN_TOOLS
831 macro(add_llvm_tool name)
832 if( NOT LLVM_BUILD_TOOLS )
833 set(EXCLUDE_FROM_ALL ON)
835 add_llvm_executable(${name} ${ARGN})
837 if ( ${name} IN_LIST LLVM_TOOLCHAIN_TOOLS OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY)
838 if( LLVM_BUILD_TOOLS )
839 if(${name} IN_LIST LLVM_DISTRIBUTION_COMPONENTS OR
840 NOT LLVM_DISTRIBUTION_COMPONENTS)
841 set(export_to_llvmexports EXPORT LLVMExports)
842 set_property(GLOBAL PROPERTY LLVM_HAS_EXPORTS True)
845 install(TARGETS ${name}
846 ${export_to_llvmexports}
847 RUNTIME DESTINATION ${LLVM_TOOLS_INSTALL_DIR}
850 if (NOT CMAKE_CONFIGURATION_TYPES)
851 add_custom_target(install-${name}
853 COMMAND "${CMAKE_COMMAND}"
854 -DCMAKE_INSTALL_COMPONENT=${name}
855 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
859 if( LLVM_BUILD_TOOLS )
860 set_property(GLOBAL APPEND PROPERTY LLVM_EXPORTS ${name})
862 set_target_properties(${name} PROPERTIES FOLDER "Tools")
863 endmacro(add_llvm_tool name)
866 macro(add_llvm_example name)
867 if( NOT LLVM_BUILD_EXAMPLES )
868 set(EXCLUDE_FROM_ALL ON)
870 add_llvm_executable(${name} ${ARGN})
871 if( LLVM_BUILD_EXAMPLES )
872 install(TARGETS ${name} RUNTIME DESTINATION examples)
874 set_target_properties(${name} PROPERTIES FOLDER "Examples")
875 endmacro(add_llvm_example name)
877 # This is a macro that is used to create targets for executables that are needed
878 # for development, but that are not intended to be installed by default.
879 macro(add_llvm_utility name)
880 if ( NOT LLVM_BUILD_UTILS )
881 set(EXCLUDE_FROM_ALL ON)
884 add_llvm_executable(${name} DISABLE_LLVM_LINK_LLVM_DYLIB ${ARGN})
885 set_target_properties(${name} PROPERTIES FOLDER "Utils")
886 if( LLVM_INSTALL_UTILS AND LLVM_BUILD_UTILS )
887 install (TARGETS ${name}
888 RUNTIME DESTINATION ${LLVM_UTILS_INSTALL_DIR}
890 if (NOT CMAKE_CONFIGURATION_TYPES)
891 add_custom_target(install-${name}
893 COMMAND "${CMAKE_COMMAND}"
894 -DCMAKE_INSTALL_COMPONENT=${name}
895 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
898 endmacro(add_llvm_utility name)
900 macro(add_llvm_fuzzer name)
901 cmake_parse_arguments(ARG "" "DUMMY_MAIN" "" ${ARGN})
902 if( LLVM_LIB_FUZZING_ENGINE )
903 set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
904 add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
905 target_link_libraries(${name} ${LLVM_LIB_FUZZING_ENGINE})
906 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
907 elseif( LLVM_USE_SANITIZE_COVERAGE )
908 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=fuzzer")
909 set(LLVM_OPTIONAL_SOURCES ${ARG_DUMMY_MAIN})
910 add_llvm_executable(${name} ${ARG_UNPARSED_ARGUMENTS})
911 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
912 elseif( ARG_DUMMY_MAIN )
913 add_llvm_executable(${name} ${ARG_DUMMY_MAIN} ${ARG_UNPARSED_ARGUMENTS})
914 set_target_properties(${name} PROPERTIES FOLDER "Fuzzers")
918 macro(add_llvm_target target_name)
919 include_directories(BEFORE
920 ${CMAKE_CURRENT_BINARY_DIR}
921 ${CMAKE_CURRENT_SOURCE_DIR})
922 add_llvm_library(LLVM${target_name} ${ARGN})
923 set( CURRENT_LLVM_TARGET LLVM${target_name} )
924 endmacro(add_llvm_target)
926 function(canonicalize_tool_name name output)
927 string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}/" "" nameStrip ${name})
928 string(REPLACE "-" "_" nameUNDERSCORE ${nameStrip})
929 string(TOUPPER ${nameUNDERSCORE} nameUPPER)
930 set(${output} "${nameUPPER}" PARENT_SCOPE)
931 endfunction(canonicalize_tool_name)
933 # Custom add_subdirectory wrapper
934 # Takes in a project name (i.e. LLVM), the subdirectory name, and an optional
935 # path if it differs from the name.
936 macro(add_llvm_subdirectory project type name)
937 set(add_llvm_external_dir "${ARGN}")
938 if("${add_llvm_external_dir}" STREQUAL "")
939 set(add_llvm_external_dir ${name})
941 canonicalize_tool_name(${name} nameUPPER)
942 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir}/CMakeLists.txt)
943 # Treat it as in-tree subproject.
944 option(${project}_${type}_${nameUPPER}_BUILD
945 "Whether to build ${name} as part of ${project}" On)
946 mark_as_advanced(${project}_${type}_${name}_BUILD)
947 if(${project}_${type}_${nameUPPER}_BUILD)
948 add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${add_llvm_external_dir} ${add_llvm_external_dir})
949 # Don't process it in add_llvm_implicit_projects().
950 set(${project}_${type}_${nameUPPER}_BUILD OFF)
953 set(LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR
954 "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}"
955 CACHE PATH "Path to ${name} source directory")
956 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT ON)
957 if(NOT LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR OR NOT EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
958 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
960 if("${LLVM_EXTERNAL_${nameUPPER}_BUILD}" STREQUAL "OFF")
961 set(${project}_${type}_${nameUPPER}_BUILD_DEFAULT OFF)
963 option(${project}_${type}_${nameUPPER}_BUILD
964 "Whether to build ${name} as part of LLVM"
965 ${${project}_${type}_${nameUPPER}_BUILD_DEFAULT})
966 if (${project}_${type}_${nameUPPER}_BUILD)
967 if(EXISTS ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR})
968 add_subdirectory(${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR} ${add_llvm_external_dir})
969 elseif(NOT "${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}" STREQUAL "")
970 message(WARNING "Nonexistent directory for ${name}: ${LLVM_EXTERNAL_${nameUPPER}_SOURCE_DIR}")
972 # FIXME: It'd be redundant.
973 set(${project}_${type}_${nameUPPER}_BUILD Off)
978 # Add external project that may want to be built as part of llvm such as Clang,
979 # lld, and Polly. This adds two options. One for the source directory of the
980 # project, which defaults to ${CMAKE_CURRENT_SOURCE_DIR}/${name}. Another to
981 # enable or disable building it with everything else.
982 # Additional parameter can be specified as the name of directory.
983 macro(add_llvm_external_project name)
984 add_llvm_subdirectory(LLVM TOOL ${name} ${ARGN})
987 macro(add_llvm_tool_subdirectory name)
988 add_llvm_external_project(${name})
989 endmacro(add_llvm_tool_subdirectory)
991 function(get_project_name_from_src_var var output)
992 string(REGEX MATCH "LLVM_EXTERNAL_(.*)_SOURCE_DIR"
993 MACHED_TOOL "${var}")
995 set(${output} ${CMAKE_MATCH_1} PARENT_SCOPE)
997 set(${output} PARENT_SCOPE)
1001 function(create_subdirectory_options project type)
1002 file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
1003 foreach(dir ${sub-dirs})
1004 if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
1005 canonicalize_tool_name(${dir} name)
1006 option(${project}_${type}_${name}_BUILD
1007 "Whether to build ${name} as part of ${project}" On)
1008 mark_as_advanced(${project}_${type}_${name}_BUILD)
1011 endfunction(create_subdirectory_options)
1013 function(create_llvm_tool_options)
1014 create_subdirectory_options(LLVM TOOL)
1015 endfunction(create_llvm_tool_options)
1017 function(llvm_add_implicit_projects project)
1018 set(list_of_implicit_subdirs "")
1019 file(GLOB sub-dirs "${CMAKE_CURRENT_SOURCE_DIR}/*")
1020 foreach(dir ${sub-dirs})
1021 if(IS_DIRECTORY "${dir}" AND EXISTS "${dir}/CMakeLists.txt")
1022 canonicalize_tool_name(${dir} name)
1023 if (${project}_TOOL_${name}_BUILD)
1024 get_filename_component(fn "${dir}" NAME)
1025 list(APPEND list_of_implicit_subdirs "${fn}")
1030 foreach(external_proj ${list_of_implicit_subdirs})
1031 add_llvm_subdirectory(${project} TOOL "${external_proj}" ${ARGN})
1033 endfunction(llvm_add_implicit_projects)
1035 function(add_llvm_implicit_projects)
1036 llvm_add_implicit_projects(LLVM)
1037 endfunction(add_llvm_implicit_projects)
1039 # Generic support for adding a unittest.
1040 function(add_unittest test_suite test_name)
1041 if( NOT LLVM_BUILD_TESTS )
1042 set(EXCLUDE_FROM_ALL ON)
1045 # Our current version of gtest does not properly recognize C++11 support
1046 # with MSVC, so it falls back to tr1 / experimental classes. Since LLVM
1047 # itself requires C++11, we can safely force it on unconditionally so that
1048 # we don't have to fight with the buggy gtest check.
1049 add_definitions(-DGTEST_LANG_CXX11=1)
1050 add_definitions(-DGTEST_HAS_TR1_TUPLE=0)
1052 include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googletest/include)
1053 include_directories(${LLVM_MAIN_SRC_DIR}/utils/unittest/googlemock/include)
1054 if (NOT LLVM_ENABLE_THREADS)
1055 list(APPEND LLVM_COMPILE_DEFINITIONS GTEST_HAS_PTHREAD=0)
1058 if (SUPPORTS_VARIADIC_MACROS_FLAG)
1059 list(APPEND LLVM_COMPILE_FLAGS "-Wno-variadic-macros")
1061 # Some parts of gtest rely on this GNU extension, don't warn on it.
1062 if(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG)
1063 list(APPEND LLVM_COMPILE_FLAGS "-Wno-gnu-zero-variadic-macro-arguments")
1066 set(LLVM_REQUIRES_RTTI OFF)
1068 list(APPEND LLVM_LINK_COMPONENTS Support) # gtest needs it for raw_ostream
1069 add_llvm_executable(${test_name} IGNORE_EXTERNALIZE_DEBUGINFO NO_INSTALL_RPATH ${ARGN})
1070 set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
1071 set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
1072 # libpthreads overrides some standard library symbols, so main
1073 # executable must be linked with it in order to provide consistent
1074 # API for all shared libaries loaded by this executable.
1075 target_link_libraries(${test_name} gtest_main gtest ${LLVM_PTHREAD_LIB})
1077 add_dependencies(${test_suite} ${test_name})
1078 get_target_property(test_suite_folder ${test_suite} FOLDER)
1079 if (NOT ${test_suite_folder} STREQUAL "NOTFOUND")
1080 set_property(TARGET ${test_name} PROPERTY FOLDER "${test_suite_folder}")
1084 function(llvm_add_go_executable binary pkgpath)
1085 cmake_parse_arguments(ARG "ALL" "" "DEPENDS;GOFLAGS" ${ARGN})
1087 if(LLVM_BINDINGS MATCHES "go")
1088 # FIXME: This should depend only on the libraries Go needs.
1089 get_property(llvmlibs GLOBAL PROPERTY LLVM_LIBS)
1090 set(binpath ${CMAKE_BINARY_DIR}/bin/${binary}${CMAKE_EXECUTABLE_SUFFIX})
1091 set(cc "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
1092 set(cxx "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
1094 get_property(include_dirs DIRECTORY PROPERTY INCLUDE_DIRECTORIES)
1095 foreach(d ${include_dirs})
1096 set(cppflags "${cppflags} -I${d}")
1098 set(ldflags "${CMAKE_EXE_LINKER_FLAGS}")
1099 add_custom_command(OUTPUT ${binpath}
1100 COMMAND ${CMAKE_BINARY_DIR}/bin/llvm-go "go=${GO_EXECUTABLE}" "cc=${cc}" "cxx=${cxx}" "cppflags=${cppflags}" "ldflags=${ldflags}" "packages=${LLVM_GO_PACKAGES}"
1101 ${ARG_GOFLAGS} build -o ${binpath} ${pkgpath}
1102 DEPENDS llvm-config ${CMAKE_BINARY_DIR}/bin/llvm-go${CMAKE_EXECUTABLE_SUFFIX}
1103 ${llvmlibs} ${ARG_DEPENDS}
1104 COMMENT "Building Go executable ${binary}"
1107 add_custom_target(${binary} ALL DEPENDS ${binpath})
1109 add_custom_target(${binary} DEPENDS ${binpath})
1114 # This function canonicalize the CMake variables passed by names
1115 # from CMake boolean to 0/1 suitable for passing into Python or C++,
1117 function(llvm_canonicalize_cmake_booleans)
1118 foreach(var ${ARGN})
1120 set(${var} 1 PARENT_SCOPE)
1122 set(${var} 0 PARENT_SCOPE)
1125 endfunction(llvm_canonicalize_cmake_booleans)
1127 # This function provides an automatic way to 'configure'-like generate a file
1128 # based on a set of common and custom variables, specifically targeting the
1129 # variables needed for the 'lit.site.cfg' files. This function bundles the
1130 # common variables that any Lit instance is likely to need, and custom
1131 # variables can be passed in.
1132 function(configure_lit_site_cfg site_in site_out)
1133 cmake_parse_arguments(ARG "" "" "MAIN_CONFIG;OUTPUT_MAPPING" ${ARGN})
1135 if ("${ARG_MAIN_CONFIG}" STREQUAL "")
1136 get_filename_component(INPUT_DIR ${site_in} DIRECTORY)
1137 set(ARG_MAIN_CONFIG "${INPUT_DIR}/lit.cfg")
1139 if ("${ARG_OUTPUT_MAPPING}" STREQUAL "")
1140 set(ARG_OUTPUT_MAPPING "${site_out}")
1143 foreach(c ${LLVM_TARGETS_TO_BUILD})
1144 set(TARGETS_BUILT "${TARGETS_BUILT} ${c}")
1146 set(TARGETS_TO_BUILD ${TARGETS_BUILT})
1148 set(SHLIBEXT "${LTDL_SHLIB_EXT}")
1150 # Configuration-time: See Unit/lit.site.cfg.in
1151 if (CMAKE_CFG_INTDIR STREQUAL ".")
1152 set(LLVM_BUILD_MODE ".")
1154 set(LLVM_BUILD_MODE "%(build_mode)s")
1157 # They below might not be the build tree but provided binary tree.
1158 set(LLVM_SOURCE_DIR ${LLVM_MAIN_SRC_DIR})
1159 set(LLVM_BINARY_DIR ${LLVM_BINARY_DIR})
1160 string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" LLVM_TOOLS_DIR "${LLVM_TOOLS_BINARY_DIR}")
1161 string(REPLACE ${CMAKE_CFG_INTDIR} ${LLVM_BUILD_MODE} LLVM_LIBS_DIR "${LLVM_LIBRARY_DIR}")
1163 # SHLIBDIR points the build tree.
1164 string(REPLACE "${CMAKE_CFG_INTDIR}" "${LLVM_BUILD_MODE}" SHLIBDIR "${LLVM_SHLIB_OUTPUT_INTDIR}")
1166 set(PYTHON_EXECUTABLE ${PYTHON_EXECUTABLE})
1167 # FIXME: "ENABLE_SHARED" doesn't make sense, since it is used just for
1168 # plugins. We may rename it.
1169 if(LLVM_ENABLE_PLUGINS)
1170 set(ENABLE_SHARED "1")
1172 set(ENABLE_SHARED "0")
1175 if(LLVM_ENABLE_ASSERTIONS AND NOT MSVC_IDE)
1176 set(ENABLE_ASSERTIONS "1")
1178 set(ENABLE_ASSERTIONS "0")
1181 set(HOST_OS ${CMAKE_SYSTEM_NAME})
1182 set(HOST_ARCH ${CMAKE_SYSTEM_PROCESSOR})
1184 set(HOST_CC "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
1185 set(HOST_CXX "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}")
1186 set(HOST_LDFLAGS "${CMAKE_EXE_LINKER_FLAGS}")
1188 set(LIT_SITE_CFG_IN_HEADER "## Autogenerated from ${site_in}\n## Do not edit!")
1190 # Override config_target_triple (and the env)
1191 if(LLVM_TARGET_TRIPLE_ENV)
1192 # This is expanded into the heading.
1193 string(CONCAT LIT_SITE_CFG_IN_HEADER "${LIT_SITE_CFG_IN_HEADER}\n\n"
1195 "target_env = \"${LLVM_TARGET_TRIPLE_ENV}\"\n"
1196 "config.target_triple = config.environment[target_env] = os.environ.get(target_env, \"${TARGET_TRIPLE}\")\n"
1199 # This is expanded to; config.target_triple = ""+config.target_triple+""
1200 set(TARGET_TRIPLE "\"+config.target_triple+\"")
1203 string(CONCAT LIT_SITE_CFG_IN_FOOTER
1205 "lit.llvm.initialize(lit_config, config)\n")
1207 configure_file(${site_in} ${site_out} @ONLY)
1208 if (EXISTS "${ARG_MAIN_CONFIG}")
1209 set(PYTHON_STATEMENT "map_config('${ARG_MAIN_CONFIG}', '${site_out}')")
1210 get_property(LLVM_LIT_CONFIG_MAP GLOBAL PROPERTY LLVM_LIT_CONFIG_MAP)
1211 set(LLVM_LIT_CONFIG_MAP "${LLVM_LIT_CONFIG_MAP}\n${PYTHON_STATEMENT}")
1212 set_property(GLOBAL PROPERTY LLVM_LIT_CONFIG_MAP ${LLVM_LIT_CONFIG_MAP})
1216 function(dump_all_cmake_variables)
1217 get_cmake_property(_variableNames VARIABLES)
1218 foreach (_variableName ${_variableNames})
1219 message(STATUS "${_variableName}=${${_variableName}}")
1223 function(get_llvm_lit_path base_dir file_name)
1224 cmake_parse_arguments(ARG "ALLOW_EXTERNAL" "" "" ${ARGN})
1226 if (ARG_ALLOW_EXTERNAL)
1227 set(LLVM_DEFAULT_EXTERNAL_LIT "${LLVM_EXTERNAL_LIT}")
1228 set (LLVM_EXTERNAL_LIT "" CACHE STRING "Command used to spawn lit")
1229 if ("${LLVM_EXTERNAL_LIT}" STREQUAL "")
1230 set(LLVM_EXTERNAL_LIT "${LLVM_DEFAULT_EXTERNAL_LIT}")
1233 if (NOT "${LLVM_EXTERNAL_LIT}" STREQUAL "")
1234 if (EXISTS ${LLVM_EXTERNAL_LIT})
1235 get_filename_component(LIT_FILE_NAME ${LLVM_EXTERNAL_LIT} NAME)
1236 get_filename_component(LIT_BASE_DIR ${LLVM_EXTERNAL_LIT} DIRECTORY)
1237 set(${file_name} ${LIT_FILE_NAME} PARENT_SCOPE)
1238 set(${base_dir} ${LIT_BASE_DIR} PARENT_SCOPE)
1241 message(WARN "LLVM_EXTERNAL_LIT set to ${LLVM_EXTERNAL_LIT}, but the path does not exist.")
1246 set(lit_file_name "llvm-lit")
1247 if (WIN32 AND NOT CYGWIN)
1248 # llvm-lit needs suffix.py for multiprocess to find a main module.
1249 set(lit_file_name "${lit_file_name}.py")
1251 set(${file_name} ${lit_file_name} PARENT_SCOPE)
1253 get_property(LLVM_LIT_BASE_DIR GLOBAL PROPERTY LLVM_LIT_BASE_DIR)
1254 if (NOT "${LLVM_LIT_BASE_DIR}" STREQUAL "")
1255 set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
1258 # Allow individual projects to provide an override
1259 if (NOT "${LLVM_LIT_OUTPUT_DIR}" STREQUAL "")
1260 set(LLVM_LIT_BASE_DIR ${LLVM_LIT_OUTPUT_DIR})
1261 elseif(NOT "${LLVM_RUNTIME_OUTPUT_INTDIR}" STREQUAL "")
1262 set(LLVM_LIT_BASE_DIR ${LLVM_RUNTIME_OUTPUT_INTDIR})
1264 set(LLVM_LIT_BASE_DIR "")
1267 # Cache this so we don't have to do it again and have subsequent calls
1268 # potentially disagree on the value.
1269 set_property(GLOBAL PROPERTY LLVM_LIT_BASE_DIR ${LLVM_LIT_BASE_DIR})
1270 set(${base_dir} ${LLVM_LIT_BASE_DIR} PARENT_SCOPE)
1273 # A raw function to create a lit target. This is used to implement the testuite
1274 # management functions.
1275 function(add_lit_target target comment)
1276 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
1277 set(LIT_ARGS "${ARG_ARGS} ${LLVM_LIT_ARGS}")
1278 separate_arguments(LIT_ARGS)
1279 if (NOT CMAKE_CFG_INTDIR STREQUAL ".")
1280 list(APPEND LIT_ARGS --param build_mode=${CMAKE_CFG_INTDIR})
1283 # Get the path to the lit to *run* tests with. This can be overriden by
1284 # the user by specifying -DLLVM_EXTERNAL_LIT=<path-to-lit.py>
1291 set(LIT_COMMAND "${PYTHON_EXECUTABLE};${lit_base_dir}/${lit_file_name}")
1292 list(APPEND LIT_COMMAND ${LIT_ARGS})
1293 foreach(param ${ARG_PARAMS})
1294 list(APPEND LIT_COMMAND --param ${param})
1296 if (ARG_UNPARSED_ARGUMENTS)
1297 add_custom_target(${target}
1298 COMMAND ${LIT_COMMAND} ${ARG_UNPARSED_ARGUMENTS}
1299 COMMENT "${comment}"
1303 add_custom_target(${target}
1304 COMMAND ${CMAKE_COMMAND} -E echo "${target} does nothing, no tools built.")
1305 message(STATUS "${target} does nothing.")
1308 add_dependencies(${target} ${ARG_DEPENDS})
1311 # Tests should be excluded from "Build Solution".
1312 set_target_properties(${target} PROPERTIES EXCLUDE_FROM_DEFAULT_BUILD ON)
1315 # A function to add a set of lit test suites to be driven through 'check-*' targets.
1316 function(add_lit_testsuite target comment)
1317 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
1319 # EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.
1320 if(NOT EXCLUDE_FROM_ALL)
1321 # Register the testsuites, params and depends for the global check rule.
1322 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_TESTSUITES ${ARG_UNPARSED_ARGUMENTS})
1323 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_PARAMS ${ARG_PARAMS})
1324 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_DEPENDS ${ARG_DEPENDS})
1325 set_property(GLOBAL APPEND PROPERTY LLVM_LIT_EXTRA_ARGS ${ARG_ARGS})
1328 # Produce a specific suffixed check rule.
1329 add_lit_target(${target} ${comment}
1330 ${ARG_UNPARSED_ARGUMENTS}
1331 PARAMS ${ARG_PARAMS}
1332 DEPENDS ${ARG_DEPENDS}
1337 function(add_lit_testsuites project directory)
1338 if (NOT CMAKE_CONFIGURATION_TYPES)
1339 cmake_parse_arguments(ARG "" "" "PARAMS;DEPENDS;ARGS" ${ARGN})
1341 # Search recursively for test directories by assuming anything not
1342 # in a directory called Inputs contains tests.
1343 file(GLOB_RECURSE to_process LIST_DIRECTORIES true ${directory}/*)
1344 foreach(lit_suite ${to_process})
1345 if(NOT IS_DIRECTORY ${lit_suite})
1348 string(FIND ${lit_suite} Inputs is_inputs)
1349 string(FIND ${lit_suite} Output is_output)
1350 if (NOT (is_inputs EQUAL -1 AND is_output EQUAL -1))
1354 # Create a check- target for the directory.
1355 string(REPLACE ${directory} "" name_slash ${lit_suite})
1357 string(REPLACE "/" "-" name_slash ${name_slash})
1358 string(REPLACE "\\" "-" name_dashes ${name_slash})
1359 string(TOLOWER "${project}${name_dashes}" name_var)
1360 add_lit_target("check-${name_var}" "Running lit suite ${lit_suite}"
1362 PARAMS ${ARG_PARAMS}
1363 DEPENDS ${ARG_DEPENDS}
1371 function(llvm_install_library_symlink name dest type)
1372 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
1373 foreach(path ${CMAKE_MODULE_PATH})
1374 if(EXISTS ${path}/LLVMInstallSymlink.cmake)
1375 set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
1380 set(component ${ARG_COMPONENT})
1382 set(component ${name})
1385 set(full_name ${CMAKE_${type}_LIBRARY_PREFIX}${name}${CMAKE_${type}_LIBRARY_SUFFIX})
1386 set(full_dest ${CMAKE_${type}_LIBRARY_PREFIX}${dest}${CMAKE_${type}_LIBRARY_SUFFIX})
1388 set(output_dir lib${LLVM_LIBDIR_SUFFIX})
1389 if(WIN32 AND "${type}" STREQUAL "SHARED")
1393 install(SCRIPT ${INSTALL_SYMLINK}
1394 CODE "install_symlink(${full_name} ${full_dest} ${output_dir})"
1395 COMPONENT ${component})
1397 if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
1398 add_custom_target(install-${name}
1399 DEPENDS ${name} ${dest} install-${dest}
1400 COMMAND "${CMAKE_COMMAND}"
1401 -DCMAKE_INSTALL_COMPONENT=${name}
1402 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
1406 function(llvm_install_symlink name dest)
1407 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "COMPONENT" "" ${ARGN})
1408 foreach(path ${CMAKE_MODULE_PATH})
1409 if(EXISTS ${path}/LLVMInstallSymlink.cmake)
1410 set(INSTALL_SYMLINK ${path}/LLVMInstallSymlink.cmake)
1416 set(component ${ARG_COMPONENT})
1418 if(ARG_ALWAYS_GENERATE)
1419 set(component ${dest})
1421 set(component ${name})
1425 set(full_name ${name}${CMAKE_EXECUTABLE_SUFFIX})
1426 set(full_dest ${dest}${CMAKE_EXECUTABLE_SUFFIX})
1428 install(SCRIPT ${INSTALL_SYMLINK}
1429 CODE "install_symlink(${full_name} ${full_dest} ${LLVM_TOOLS_INSTALL_DIR})"
1430 COMPONENT ${component})
1432 if (NOT CMAKE_CONFIGURATION_TYPES AND NOT ARG_ALWAYS_GENERATE)
1433 add_custom_target(install-${name}
1434 DEPENDS ${name} ${dest} install-${dest}
1435 COMMAND "${CMAKE_COMMAND}"
1436 -DCMAKE_INSTALL_COMPONENT=${name}
1437 -P "${CMAKE_BINARY_DIR}/cmake_install.cmake")
1441 function(add_llvm_tool_symlink link_name target)
1442 cmake_parse_arguments(ARG "ALWAYS_GENERATE" "OUTPUT_DIR" "" ${ARGN})
1443 set(dest_binary "$<TARGET_FILE:${target}>")
1445 # This got a bit gross... For multi-configuration generators the target
1446 # properties return the resolved value of the string, not the build system
1447 # expression. To reconstruct the platform-agnostic path we have to do some
1448 # magic. First we grab one of the types, and a type-specific path. Then from
1449 # the type-specific path we find the last occurrence of the type in the path,
1450 # and replace it with CMAKE_CFG_INTDIR. This allows the build step to be type
1452 if(NOT ARG_OUTPUT_DIR)
1453 # If you're not overriding the OUTPUT_DIR, we can make the link relative in
1454 # the same directory.
1456 set(dest_binary "$<TARGET_FILE_NAME:${target}>")
1458 if(CMAKE_CONFIGURATION_TYPES)
1459 list(GET CMAKE_CONFIGURATION_TYPES 0 first_type)
1460 string(TOUPPER ${first_type} first_type_upper)
1461 set(first_type_suffix _${first_type_upper})
1463 get_target_property(target_type ${target} TYPE)
1464 if(${target_type} STREQUAL "STATIC_LIBRARY")
1465 get_target_property(ARG_OUTPUT_DIR ${target} ARCHIVE_OUTPUT_DIRECTORY${first_type_suffix})
1466 elseif(UNIX AND ${target_type} STREQUAL "SHARED_LIBRARY")
1467 get_target_property(ARG_OUTPUT_DIR ${target} LIBRARY_OUTPUT_DIRECTORY${first_type_suffix})
1469 get_target_property(ARG_OUTPUT_DIR ${target} RUNTIME_OUTPUT_DIRECTORY${first_type_suffix})
1471 if(CMAKE_CONFIGURATION_TYPES)
1472 string(FIND "${ARG_OUTPUT_DIR}" "/${first_type}/" type_start REVERSE)
1473 string(SUBSTRING "${ARG_OUTPUT_DIR}" 0 ${type_start} path_prefix)
1474 string(SUBSTRING "${ARG_OUTPUT_DIR}" ${type_start} -1 path_suffix)
1475 string(REPLACE "/${first_type}/" "/${CMAKE_CFG_INTDIR}/"
1476 path_suffix ${path_suffix})
1477 set(ARG_OUTPUT_DIR ${path_prefix}${path_suffix})
1482 set(LLVM_LINK_OR_COPY create_symlink)
1484 set(LLVM_LINK_OR_COPY copy)
1487 set(output_path "${ARG_OUTPUT_DIR}/${link_name}${CMAKE_EXECUTABLE_SUFFIX}")
1489 set(target_name ${link_name})
1490 if(TARGET ${link_name})
1491 set(target_name ${link_name}-link)
1495 if(ARG_ALWAYS_GENERATE)
1496 set_property(DIRECTORY APPEND PROPERTY
1497 ADDITIONAL_MAKE_CLEAN_FILES ${dest_binary})
1498 add_custom_command(TARGET ${target} POST_BUILD
1499 COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}")
1501 add_custom_command(OUTPUT ${output_path}
1502 COMMAND ${CMAKE_COMMAND} -E ${LLVM_LINK_OR_COPY} "${dest_binary}" "${output_path}"
1504 add_custom_target(${target_name} ALL DEPENDS ${target} ${output_path})
1505 set_target_properties(${target_name} PROPERTIES FOLDER Tools)
1507 # Make sure both the link and target are toolchain tools
1508 if (${link_name} IN_LIST LLVM_TOOLCHAIN_TOOLS AND ${target} IN_LIST LLVM_TOOLCHAIN_TOOLS)
1509 set(TOOL_IS_TOOLCHAIN ON)
1512 if ((TOOL_IS_TOOLCHAIN OR NOT LLVM_INSTALL_TOOLCHAIN_ONLY) AND LLVM_BUILD_TOOLS)
1513 llvm_install_symlink(${link_name} ${target})
1518 function(llvm_externalize_debuginfo name)
1519 if(NOT LLVM_EXTERNALIZE_DEBUGINFO)
1523 if(NOT LLVM_EXTERNALIZE_DEBUGINFO_SKIP_STRIP)
1525 set(strip_command COMMAND xcrun strip -Sxl $<TARGET_FILE:${name}>)
1527 set(strip_command COMMAND strip -gx $<TARGET_FILE:${name}>)
1532 if(CMAKE_CXX_FLAGS MATCHES "-flto"
1533 OR CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE} MATCHES "-flto")
1535 set(lto_object ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR}/${name}-lto.o)
1536 set_property(TARGET ${name} APPEND_STRING PROPERTY
1537 LINK_FLAGS " -Wl,-object_path_lto,${lto_object}")
1539 add_custom_command(TARGET ${name} POST_BUILD
1540 COMMAND xcrun dsymutil $<TARGET_FILE:${name}>
1544 add_custom_command(TARGET ${name} POST_BUILD
1545 COMMAND objcopy --only-keep-debug $<TARGET_FILE:${name}> $<TARGET_FILE:${name}>.debug
1546 ${strip_command} -R .gnu_debuglink
1547 COMMAND objcopy --add-gnu-debuglink=$<TARGET_FILE:${name}>.debug $<TARGET_FILE:${name}>
1552 function(llvm_setup_rpath name)
1553 if(CMAKE_INSTALL_RPATH)
1557 if(LLVM_INSTALL_PREFIX AND NOT (LLVM_INSTALL_PREFIX STREQUAL CMAKE_INSTALL_PREFIX))
1558 set(extra_libdir ${LLVM_LIBRARY_DIR})
1559 elseif(LLVM_BUILD_LIBRARY_DIR)
1560 set(extra_libdir ${LLVM_LIBRARY_DIR})
1564 set(_install_name_dir INSTALL_NAME_DIR "@rpath")
1565 set(_install_rpath "@loader_path/../lib" ${extra_libdir})
1567 set(_install_rpath "\$ORIGIN/../lib${LLVM_LIBDIR_SUFFIX}" ${extra_libdir})
1568 if(${CMAKE_SYSTEM_NAME} MATCHES "(FreeBSD|DragonFly)")
1569 set_property(TARGET ${name} APPEND_STRING PROPERTY
1570 LINK_FLAGS " -Wl,-z,origin ")
1571 elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT LLVM_LINKER_IS_GOLD)
1572 # $ORIGIN is not interpreted at link time by ld.bfd
1573 set_property(TARGET ${name} APPEND_STRING PROPERTY
1574 LINK_FLAGS " -Wl,-rpath-link,${LLVM_LIBRARY_OUTPUT_INTDIR} ")
1580 set_target_properties(${name} PROPERTIES
1581 BUILD_WITH_INSTALL_RPATH On
1582 INSTALL_RPATH "${_install_rpath}"
1583 ${_install_name_dir})
1586 function(setup_dependency_debugging name)
1587 if(NOT LLVM_DEPENDENCY_DEBUGGING)
1591 if("intrinsics_gen" IN_LIST ARGN)
1595 set(deny_attributes_gen "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Attributes.gen\"))")
1596 set(deny_intrinsics_gen "(deny file* (literal \"${LLVM_BINARY_DIR}/include/llvm/IR/Intrinsics.gen\"))")
1598 set(sandbox_command "sandbox-exec -p '(version 1) (allow default) ${deny_attributes_gen} ${deny_intrinsics_gen}'")
1599 set_target_properties(${name} PROPERTIES RULE_LAUNCH_COMPILE ${sandbox_command})
1602 # Figure out if we can track VC revisions.
1603 function(find_first_existing_file out_var)
1604 foreach(file ${ARGN})
1605 if(EXISTS "${file}")
1606 set(${out_var} "${file}" PARENT_SCOPE)
1612 macro(find_first_existing_vc_file out_var path)
1613 find_program(git_executable NAMES git git.exe git.cmd)
1614 # Run from a subdirectory to force git to print an absolute path.
1615 execute_process(COMMAND ${git_executable} rev-parse --git-dir
1616 WORKING_DIRECTORY ${path}/cmake
1617 RESULT_VARIABLE git_result
1618 OUTPUT_VARIABLE git_dir
1620 if(git_result EQUAL 0)
1621 string(STRIP "${git_dir}" git_dir)
1622 set(${out_var} "${git_dir}/logs/HEAD")
1623 # some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD
1624 if (NOT EXISTS "${git_dir}/logs/HEAD")
1625 file(WRITE "${git_dir}/logs/HEAD" "")
1628 find_first_existing_file(${out_var}
1629 "${path}/.svn/wc.db" # SVN 1.7
1630 "${path}/.svn/entries" # SVN 1.6