1 if( WIN32 AND NOT CYGWIN )
2 # We consider Cygwin as another Unix
6 include(CheckIncludeFile)
7 include(CheckLibraryExists)
8 include(CheckSymbolExists)
9 include(CheckCXXSymbolExists)
10 include(CheckFunctionExists)
11 include(CheckStructHasMember)
12 include(CheckCCompilerFlag)
13 include(CheckCSourceCompiles)
14 include(CMakePushCheckState)
16 include(CheckCompilerVersion)
17 include(CheckProblematicConfigurations)
18 include(HandleLLVMStdlib)
20 if( UNIX AND NOT (APPLE OR BEOS OR HAIKU) )
21 # Used by check_symbol_exists:
22 list(APPEND CMAKE_REQUIRED_LIBRARIES "m")
24 # x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly.
25 if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND
26 CMAKE_SIZEOF_VOID_P EQUAL 8 )
27 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt")
30 # Do checks with _XOPEN_SOURCE and large-file API on AIX, because we will build
32 if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
33 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_XOPEN_SOURCE=700")
34 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_LARGE_FILE_API")
37 # Do checks with _FILE_OFFSET_BITS=64 on Solaris, because we will build
39 if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
40 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
43 # Newer POSIX functions aren't available without the appropriate defines.
44 # Usually those are set by the use of -std=gnuXX, but one can also use the
45 # newer functions with -std=c(++)XX, i.e. without the GNU language extensions.
46 # Keep this at the top to make sure we don't add _GNU_SOURCE dependent checks
48 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
50 add_compile_definitions(_GNU_SOURCE)
51 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE")
53 # enable 64bit off_t on 32bit systems using glibc
54 if(CMAKE_SIZEOF_VOID_P EQUAL 4)
55 add_compile_definitions(_FILE_OFFSET_BITS=64)
56 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
61 check_include_file(dlfcn.h HAVE_DLFCN_H)
62 check_include_file(errno.h HAVE_ERRNO_H)
63 check_include_file(fcntl.h HAVE_FCNTL_H)
64 check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
65 if( NOT PURE_WINDOWS )
66 check_include_file(pthread.h HAVE_PTHREAD_H)
68 check_include_file(signal.h HAVE_SIGNAL_H)
69 check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H)
70 check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
71 check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
72 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
73 check_include_file(sys/time.h HAVE_SYS_TIME_H)
74 check_include_file(sysexits.h HAVE_SYSEXITS_H)
75 check_include_file(termios.h HAVE_TERMIOS_H)
76 check_include_file(unistd.h HAVE_UNISTD_H)
77 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
78 check_include_file(fenv.h HAVE_FENV_H)
79 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
80 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
81 check_c_source_compiles("
82 #if __has_attribute(used)
83 #define LLVM_ATTRIBUTE_USED __attribute__((__used__))
85 #define LLVM_ATTRIBUTE_USED
87 LLVM_ATTRIBUTE_USED void *foo() {
88 return __builtin_thread_pointer();
90 int main(void) { return 0; }"
91 HAVE_BUILTIN_THREAD_POINTER)
93 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
94 check_include_file(CrashReporterClient.h HAVE_CRASHREPORTERCLIENT_H)
96 check_c_source_compiles("
97 static const char *__crashreporter_info__ = 0;
98 asm(\".desc ___crashreporter_info__, 0x10\");
99 int main(void) { return 0; }"
100 HAVE_CRASHREPORTER_INFO)
103 if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
104 check_include_file(linux/magic.h HAVE_LINUX_MAGIC_H)
105 if(NOT HAVE_LINUX_MAGIC_H)
106 # older kernels use split files
107 check_include_file(linux/nfs_fs.h HAVE_LINUX_NFS_FS_H)
108 check_include_file(linux/smb.h HAVE_LINUX_SMB_H)
113 if( NOT PURE_WINDOWS )
114 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
116 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
117 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
119 # this could be Android
120 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC)
122 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
123 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
126 check_library_exists(dl dlopen "" HAVE_LIBDL)
127 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
134 # We want to find pthreads library and at the moment we do want to
135 # have it reported as '-l<lib>' instead of '-pthread'.
136 # TODO: switch to -pthread once the rest of the build system can deal with it.
137 set(CMAKE_THREAD_PREFER_PTHREAD TRUE)
138 set(THREADS_HAVE_PTHREAD_ARG Off)
139 find_package(Threads REQUIRED)
140 set(LLVM_PTHREAD_LIB ${CMAKE_THREAD_LIBS_INIT})
144 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON)
145 find_package(ZLIB REQUIRED)
146 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
150 # Check if zlib we found is usable; for example, we may have found a 32-bit
151 # library on a 64-bit system which would result in a link-time failure.
152 cmake_push_check_state()
153 list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS})
154 list(APPEND CMAKE_REQUIRED_LIBRARIES ${ZLIB_LIBRARY})
155 check_symbol_exists(compress2 zlib.h HAVE_ZLIB)
156 cmake_pop_check_state()
157 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON AND NOT HAVE_ZLIB)
158 message(FATAL_ERROR "Failed to configure zlib")
161 set(LLVM_ENABLE_ZLIB "${HAVE_ZLIB}")
163 set(LLVM_ENABLE_ZLIB 0)
168 if(LLVM_ENABLE_ZSTD STREQUAL FORCE_ON)
169 find_package(zstd REQUIRED)
171 message(FATAL_ERROR "Failed to configure zstd, but LLVM_ENABLE_ZSTD is FORCE_ON")
173 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
174 find_package(zstd QUIET)
177 set(LLVM_ENABLE_ZSTD ${zstd_FOUND})
179 if(LLVM_ENABLE_LIBXML2)
180 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON)
181 find_package(LibXml2 REQUIRED)
182 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
183 find_package(LibXml2)
186 # Check if libxml2 we found is usable; for example, we may have found a 32-bit
187 # library on a 64-bit system which would result in a link-time failure.
188 cmake_push_check_state()
189 list(APPEND CMAKE_REQUIRED_INCLUDES ${LIBXML2_INCLUDE_DIRS})
190 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBXML2_LIBRARIES})
191 list(APPEND CMAKE_REQUIRED_DEFINITIONS ${LIBXML2_DEFINITIONS})
192 check_symbol_exists(xmlReadMemory libxml/xmlreader.h HAVE_LIBXML2)
193 cmake_pop_check_state()
194 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON AND NOT HAVE_LIBXML2)
195 message(FATAL_ERROR "Failed to configure libxml2")
198 set(LLVM_ENABLE_LIBXML2 "${HAVE_LIBXML2}")
202 if(LLVM_ENABLE_CURL STREQUAL FORCE_ON)
203 find_package(CURL REQUIRED)
208 # Check if curl we found is usable; for example, we may have found a 32-bit
209 # library on a 64-bit system which would result in a link-time failure.
210 cmake_push_check_state()
211 list(APPEND CMAKE_REQUIRED_LIBRARIES CURL::libcurl)
212 check_symbol_exists(curl_easy_init curl/curl.h HAVE_CURL)
213 cmake_pop_check_state()
214 if(LLVM_ENABLE_CURL STREQUAL FORCE_ON AND NOT HAVE_CURL)
215 message(FATAL_ERROR "Failed to configure curl")
218 set(LLVM_ENABLE_CURL "${HAVE_CURL}")
221 if(LLVM_ENABLE_HTTPLIB)
222 if(LLVM_ENABLE_HTTPLIB STREQUAL FORCE_ON)
223 find_package(httplib REQUIRED)
225 find_package(httplib)
228 # Check if the "httplib" we found is usable; for example there may be another
229 # library with the same name.
230 cmake_push_check_state()
231 list(APPEND CMAKE_REQUIRED_LIBRARIES ${HTTPLIB_LIBRARY})
232 check_cxx_symbol_exists(CPPHTTPLIB_HTTPLIB_H ${HTTPLIB_HEADER_PATH} HAVE_HTTPLIB)
233 cmake_pop_check_state()
234 if(LLVM_ENABLE_HTTPLIB STREQUAL FORCE_ON AND NOT HAVE_HTTPLIB)
235 message(FATAL_ERROR "Failed to configure cpp-httplib")
238 set(LLVM_ENABLE_HTTPLIB "${HAVE_HTTPLIB}")
241 # Don't look for these libraries if we're using MSan, since uninstrumented third
242 # party code may call MSan interceptors like strlen, leading to false positives.
243 if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*")
244 # Don't look for these libraries on Windows.
245 if (NOT PURE_WINDOWS)
246 # Skip libedit if using ASan as it contains memory leaks.
247 if (LLVM_ENABLE_LIBEDIT AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*")
248 if(LLVM_ENABLE_LIBEDIT STREQUAL FORCE_ON)
249 find_package(LibEdit REQUIRED)
251 find_package(LibEdit)
253 set(HAVE_LIBEDIT "${LibEdit_FOUND}")
265 include(CheckCXXSymbolExists)
266 check_cxx_symbol_exists(logf128 math.h HAS_LOGF128)
268 if(LLVM_HAS_LOGF128 STREQUAL FORCE_ON AND NOT HAS_LOGF128)
269 message(FATAL_ERROR "Failed to configure logf128")
272 set(LLVM_HAS_LOGF128 "${HAS_LOGF128}")
276 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
277 find_package(Backtrace)
278 set(HAVE_BACKTRACE ${Backtrace_FOUND})
279 set(BACKTRACE_HEADER ${Backtrace_HEADER})
281 # Prevent check_symbol_exists from using API that is not supported for a given
283 check_c_compiler_flag("-Werror=unguarded-availability-new" "C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW")
284 if(C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW)
285 set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unguarded-availability-new")
288 # Determine whether we can register EH tables.
289 check_symbol_exists(__register_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_REGISTER_FRAME)
290 check_symbol_exists(__deregister_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_DEREGISTER_FRAME)
291 check_symbol_exists(__unw_add_dynamic_fde "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_UNW_ADD_DYNAMIC_FDE)
293 check_symbol_exists(_Unwind_Backtrace "unwind.h" HAVE__UNWIND_BACKTRACE)
294 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
295 check_symbol_exists(sysconf unistd.h HAVE_SYSCONF)
296 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
297 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
298 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
299 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
300 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
301 # AddressSanitizer conflicts with lib/Support/Unix/Signals.inc
302 # Avoid sigaltstack on Apple platforms, where backtrace() cannot handle it
303 # (rdar://7089625) and _Unwind_Backtrace is unusable because it cannot unwind
304 # past the signal handler after an assertion failure (rdar://29866587).
305 if( HAVE_SIGNAL_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*" AND NOT APPLE )
306 check_symbol_exists(sigaltstack signal.h HAVE_SIGALTSTACK)
308 check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL)
309 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
310 check_symbol_exists(mallinfo2 malloc.h HAVE_MALLINFO2)
311 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
312 HAVE_MALLOC_ZONE_STATISTICS)
313 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
314 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
315 check_symbol_exists(pread unistd.h HAVE_PREAD)
316 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
317 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
318 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S)
319 check_symbol_exists(setenv stdlib.h HAVE_SETENV)
321 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
323 check_function_exists(_alloca HAVE__ALLOCA)
324 check_function_exists(__alloca HAVE___ALLOCA)
325 check_function_exists(__chkstk HAVE___CHKSTK)
326 check_function_exists(__chkstk_ms HAVE___CHKSTK_MS)
327 check_function_exists(___chkstk HAVE____CHKSTK)
328 check_function_exists(___chkstk_ms HAVE____CHKSTK_MS)
330 check_function_exists(__ashldi3 HAVE___ASHLDI3)
331 check_function_exists(__ashrdi3 HAVE___ASHRDI3)
332 check_function_exists(__divdi3 HAVE___DIVDI3)
333 check_function_exists(__fixdfdi HAVE___FIXDFDI)
334 check_function_exists(__fixsfdi HAVE___FIXSFDI)
335 check_function_exists(__floatdidf HAVE___FLOATDIDF)
336 check_function_exists(__lshrdi3 HAVE___LSHRDI3)
337 check_function_exists(__moddi3 HAVE___MODDI3)
338 check_function_exists(__udivdi3 HAVE___UDIVDI3)
339 check_function_exists(__umoddi3 HAVE___UMODDI3)
341 check_function_exists(__main HAVE___MAIN)
342 check_function_exists(__cmpdi2 HAVE___CMPDI2)
345 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec
346 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
347 if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
348 # The st_mtim.tv_nsec member of a `stat` structure is not reliable on some AIX
350 set(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 0)
352 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec
353 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
356 # This check requires _GNU_SOURCE.
357 if (NOT PURE_WINDOWS)
358 if (LLVM_PTHREAD_LIB)
359 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB})
361 check_symbol_exists(pthread_getname_np pthread.h HAVE_PTHREAD_GETNAME_NP)
362 check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP)
363 check_symbol_exists(pthread_get_name_np "pthread.h;pthread_np.h" HAVE_PTHREAD_GET_NAME_NP)
364 check_symbol_exists(pthread_set_name_np "pthread.h;pthread_np.h" HAVE_PTHREAD_SET_NAME_NP)
365 if (LLVM_PTHREAD_LIB)
366 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB})
370 # This check requires _GNU_SOURCE.
373 list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
375 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN)
376 check_symbol_exists(dladdr dlfcn.h HAVE_DLADDR)
378 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl)
382 # available programs checks
383 function(llvm_find_program name)
384 string(TOUPPER ${name} NAME)
385 string(REGEX REPLACE "\\." "_" NAME ${NAME})
387 find_program(LLVM_PATH_${NAME} NAMES ${ARGV})
388 mark_as_advanced(LLVM_PATH_${NAME})
389 if(LLVM_PATH_${NAME})
390 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?")
391 mark_as_advanced(HAVE_${NAME})
392 else(LLVM_PATH_${NAME})
393 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?")
394 endif(LLVM_PATH_${NAME})
397 if (LLVM_ENABLE_DOXYGEN)
398 llvm_find_program(dot)
402 set(FFI_REQUIRE_INCLUDE On)
403 if(LLVM_ENABLE_FFI STREQUAL FORCE_ON)
404 find_package(FFI REQUIRED)
408 set(LLVM_ENABLE_FFI "${FFI_FOUND}")
410 unset(HAVE_FFI_FFI_H CACHE)
411 unset(HAVE_FFI_H CACHE)
412 unset(HAVE_FFI_CALL CACHE)
415 check_symbol_exists(proc_pid_rusage "libproc.h" HAVE_PROC_PID_RUSAGE)
417 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported.
420 if( LLVM_ENABLE_PIC )
424 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie")
427 set(SUPPORTS_VARIADIC_MACROS_FLAG 0)
428 if (LLVM_COMPILER_IS_GCC_COMPATIBLE)
429 set(SUPPORTS_VARIADIC_MACROS_FLAG 1)
431 if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
432 set(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG 1)
434 set(SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG 0)
437 set(USE_NO_MAYBE_UNINITIALIZED 0)
438 set(USE_NO_UNINITIALIZED 0)
440 # Disable gcc's potentially uninitialized use analysis as it presents lots of
442 if (CMAKE_COMPILER_IS_GNUCXX)
443 # Disable all -Wuninitialized warning for old GCC versions.
444 if (CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.0)
445 set(USE_NO_UNINITIALIZED 1)
447 set(USE_NO_MAYBE_UNINITIALIZED 1)
451 if(LLVM_INCLUDE_TESTS)
452 include(GetErrcMessages)
453 get_errc_messages(LLVM_LIT_ERRC_MESSAGES)
456 # By default, we target the host, but this can be overridden at CMake
458 include(GetHostTriple)
459 get_host_triple(LLVM_INFERRED_HOST_TRIPLE)
461 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING
462 "Host on which LLVM binaries will run")
463 message(STATUS "LLVM host triple: ${LLVM_HOST_TRIPLE}")
465 # Determine the native architecture.
466 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
467 if( LLVM_NATIVE_ARCH STREQUAL "host" )
468 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
471 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
472 set(LLVM_NATIVE_ARCH X86)
473 elseif (LLVM_NATIVE_ARCH STREQUAL "x86")
474 set(LLVM_NATIVE_ARCH X86)
475 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64")
476 set(LLVM_NATIVE_ARCH X86)
477 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64")
478 set(LLVM_NATIVE_ARCH X86)
479 elseif (LLVM_NATIVE_ARCH MATCHES "sparc")
480 set(LLVM_NATIVE_ARCH Sparc)
481 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc")
482 set(LLVM_NATIVE_ARCH PowerPC)
483 elseif (LLVM_NATIVE_ARCH MATCHES "ppc64le")
484 set(LLVM_NATIVE_ARCH PowerPC)
485 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64")
486 set(LLVM_NATIVE_ARCH AArch64)
487 elseif (LLVM_NATIVE_ARCH MATCHES "arm64")
488 set(LLVM_NATIVE_ARCH AArch64)
489 elseif (LLVM_NATIVE_ARCH MATCHES "arm")
490 set(LLVM_NATIVE_ARCH ARM)
491 elseif (LLVM_NATIVE_ARCH MATCHES "avr")
492 set(LLVM_NATIVE_ARCH AVR)
493 elseif (LLVM_NATIVE_ARCH MATCHES "mips")
494 set(LLVM_NATIVE_ARCH Mips)
495 elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
496 set(LLVM_NATIVE_ARCH XCore)
497 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
498 set(LLVM_NATIVE_ARCH MSP430)
499 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
500 set(LLVM_NATIVE_ARCH Hexagon)
501 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
502 set(LLVM_NATIVE_ARCH SystemZ)
503 elseif (LLVM_NATIVE_ARCH MATCHES "wasm32")
504 set(LLVM_NATIVE_ARCH WebAssembly)
505 elseif (LLVM_NATIVE_ARCH MATCHES "wasm64")
506 set(LLVM_NATIVE_ARCH WebAssembly)
507 elseif (LLVM_NATIVE_ARCH MATCHES "riscv32")
508 set(LLVM_NATIVE_ARCH RISCV)
509 elseif (LLVM_NATIVE_ARCH MATCHES "riscv64")
510 set(LLVM_NATIVE_ARCH RISCV)
511 elseif (LLVM_NATIVE_ARCH STREQUAL "m68k")
512 set(LLVM_NATIVE_ARCH M68k)
513 elseif (LLVM_NATIVE_ARCH MATCHES "loongarch")
514 set(LLVM_NATIVE_ARCH LoongArch)
516 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
519 # If build targets includes "host" or "Native", then replace with native architecture.
520 foreach (NATIVE_KEYWORD host Native)
521 list(FIND LLVM_TARGETS_TO_BUILD ${NATIVE_KEYWORD} idx)
523 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx})
524 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH})
525 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)
529 if (NOT ${LLVM_NATIVE_ARCH} IN_LIST LLVM_TARGETS_TO_BUILD)
531 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
533 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
534 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
535 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
536 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC)
537 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
539 # We don't have an ASM parser for all architectures yet.
540 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt)
541 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser)
544 # We don't have an disassembler for all architectures yet.
545 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt)
546 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler)
552 set(stricmp "_stricmp")
553 set(strdup "_strdup")
555 # Allow setting clang-cl's /winsysroot flag.
556 set(LLVM_WINSYSROOT "" CACHE STRING
557 "If set, argument to clang-cl's /winsysroot")
560 set(MSVC_DIA_SDK_DIR "${LLVM_WINSYSROOT}/DIA SDK" CACHE PATH
561 "Path to the DIA SDK")
563 set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK" CACHE PATH
564 "Path to the DIA SDK")
567 # See if the DIA SDK is available and usable.
568 # Due to a bug in MSVC 2013's installation software, it is possible
569 # for MSVC 2013 to write the DIA SDK into the Visual Studio 2012
570 # install directory. If this happens, the installation is corrupt
571 # and there's nothing we can do. It happens with enough frequency
572 # though that we should handle it. We do so by simply checking that
573 # the DIA SDK folder exists. Should this happen you will need to
574 # uninstall VS 2012 and then re-install VS 2013.
575 if (IS_DIRECTORY "${MSVC_DIA_SDK_DIR}")
581 option(LLVM_ENABLE_DIA_SDK "Use MSVC DIA SDK for debugging if available."
584 if(LLVM_ENABLE_DIA_SDK AND NOT HAVE_DIA_SDK)
585 message(FATAL_ERROR "DIA SDK not found. If you have both VS 2012 and 2013 installed, you may need to uninstall the former and re-install the latter afterwards.")
588 set(LLVM_ENABLE_DIA_SDK 0)
591 if( LLVM_ENABLE_THREADS )
592 # Check if threading primitives aren't supported on this platform
593 if( NOT HAVE_PTHREAD_H AND NOT WIN32 )
594 set(LLVM_ENABLE_THREADS 0)
598 if( LLVM_ENABLE_THREADS )
599 message(STATUS "Threads enabled.")
600 else( LLVM_ENABLE_THREADS )
601 message(STATUS "Threads disabled.")
604 if (LLVM_ENABLE_DOXYGEN)
605 message(STATUS "Doxygen enabled.")
606 find_package(Doxygen REQUIRED)
609 # If we find doxygen and we want to enable doxygen by default create a
610 # global aggregate doxygen target for generating llvm and any/all
611 # subprojects doxygen documentation.
613 add_custom_target(doxygen ALL)
616 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF)
617 if (LLVM_DOXYGEN_EXTERNAL_SEARCH)
618 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external search.")
619 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings")
623 message(STATUS "Doxygen disabled.")
626 find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold ${LLVM_DEFAULT_TARGET_TRIPLE}-ld ld DOC "The gold linker")
627 set(LLVM_BINUTILS_INCDIR "" CACHE PATH
628 "PATH to binutils/include containing plugin-api.h for gold plugin.")
630 if(CMAKE_GENERATOR MATCHES "Ninja")
631 execute_process(COMMAND ${CMAKE_MAKE_PROGRAM} --version
632 OUTPUT_VARIABLE NINJA_VERSION
633 OUTPUT_STRIP_TRAILING_WHITESPACE)
634 set(NINJA_VERSION ${NINJA_VERSION} CACHE STRING "Ninja version number" FORCE)
635 message(STATUS "Ninja version: ${NINJA_VERSION}")
638 if(CMAKE_GENERATOR MATCHES "Ninja" AND
639 NOT "${NINJA_VERSION}" VERSION_LESS "1.9.0" AND
640 CMAKE_HOST_APPLE AND CMAKE_HOST_SYSTEM_VERSION VERSION_GREATER "15.6.0")
641 set(LLVM_TOUCH_STATIC_LIBRARIES ON)
644 if(CMAKE_HOST_APPLE AND APPLE)
645 if(NOT LD64_EXECUTABLE)
647 find_program(CMAKE_XCRUN NAMES xcrun)
650 # First, check if there's ld-classic, which is ld64 in newer SDKs.
652 execute_process(COMMAND ${CMAKE_XCRUN} -find ld-classic
653 OUTPUT_VARIABLE LD64_EXECUTABLE
654 OUTPUT_STRIP_TRAILING_WHITESPACE)
656 find_program(LD64_EXECUTABLE NAMES ld-classic DOC "The ld64 linker")
659 # Otherwise look for ld directly.
660 if(NOT LD64_EXECUTABLE)
662 execute_process(COMMAND ${CMAKE_XCRUN} -find ld
663 OUTPUT_VARIABLE LD64_EXECUTABLE
664 OUTPUT_STRIP_TRAILING_WHITESPACE)
666 find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker")
672 set(LD64_EXECUTABLE ${LD64_EXECUTABLE} CACHE PATH "ld64 executable")
673 message(STATUS "Found ld64 - ${LD64_EXECUTABLE}")
677 # Keep the version requirements in sync with bindings/ocaml/README.txt.
678 set(LLVM_BINDINGS "")
681 if(WIN32 OR NOT LLVM_ENABLE_BINDINGS)
682 message(STATUS "OCaml bindings disabled.")
685 if( NOT OCAML_FOUND )
686 message(STATUS "OCaml bindings disabled.")
688 if( OCAML_VERSION VERSION_LESS "4.00.0" )
689 message(STATUS "OCaml bindings disabled, need OCaml >=4.00.0.")
691 find_ocamlfind_package(ctypes VERSION 0.4 OPTIONAL)
692 if( HAVE_OCAML_CTYPES )
693 message(STATUS "OCaml bindings enabled.")
694 set(LLVM_BINDINGS "${LLVM_BINDINGS} ocaml")
696 set(LLVM_OCAML_INSTALL_PATH "${OCAML_STDLIB_PATH}" CACHE STRING
697 "Install directory for LLVM OCaml packages")
699 message(STATUS "OCaml bindings disabled, need ctypes >=0.4.")
705 string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}")
707 function(find_python_module module)
708 string(REPLACE "." "_" module_name ${module})
709 string(TOUPPER ${module_name} module_upper)
710 set(FOUND_VAR PY_${module_upper}_FOUND)
711 if (DEFINED ${FOUND_VAR})
715 execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import ${module}"
716 RESULT_VARIABLE status
720 set(${FOUND_VAR} OFF CACHE BOOL "Failed to find python module '${module}'")
721 message(STATUS "Could NOT find Python module ${module}")
723 set(${FOUND_VAR} ON CACHE BOOL "Found python module '${module}'")
724 message(STATUS "Found Python module ${module}")
730 # Some systems still don't have pygments.lexers.c_cpp which was introduced in
731 # version 2.0 in 2014...
732 pygments.lexers.c_cpp
735 foreach(module ${PYTHON_MODULES})
736 find_python_module(${module})
739 if(PY_PYGMENTS_FOUND AND PY_PYGMENTS_LEXERS_C_CPP_FOUND AND PY_YAML_FOUND)
740 set (LLVM_HAVE_OPT_VIEWER_MODULES 1)
742 set (LLVM_HAVE_OPT_VIEWER_MODULES 0)
745 function(llvm_get_host_prefixes_and_suffixes)
746 # Not all platform files will set these variables (relying on them being
747 # implicitly empty if they're unset), so unset the variables before including
748 # the platform file, to prevent any values from the target system leaking.
749 unset(CMAKE_STATIC_LIBRARY_PREFIX)
750 unset(CMAKE_STATIC_LIBRARY_SUFFIX)
751 unset(CMAKE_SHARED_LIBRARY_PREFIX)
752 unset(CMAKE_SHARED_LIBRARY_SUFFIX)
753 unset(CMAKE_IMPORT_LIBRARY_PREFIX)
754 unset(CMAKE_IMPORT_LIBRARY_SUFFIX)
755 unset(CMAKE_EXECUTABLE_SUFFIX)
756 unset(CMAKE_LINK_LIBRARY_SUFFIX)
757 include(Platform/${CMAKE_HOST_SYSTEM_NAME} OPTIONAL RESULT_VARIABLE _includedFile)
759 set(LLVM_HOST_STATIC_LIBRARY_PREFIX ${CMAKE_STATIC_LIBRARY_PREFIX} PARENT_SCOPE)
760 set(LLVM_HOST_STATIC_LIBRARY_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX} PARENT_SCOPE)
761 set(LLVM_HOST_SHARED_LIBRARY_PREFIX ${CMAKE_SHARED_LIBRARY_PREFIX} PARENT_SCOPE)
762 set(LLVM_HOST_SHARED_LIBRARY_SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX} PARENT_SCOPE)
763 set(LLVM_HOST_IMPORT_LIBRARY_PREFIX ${CMAKE_IMPORT_LIBRARY_PREFIX} PARENT_SCOPE)
764 set(LLVM_HOST_IMPORT_LIBRARY_SUFFIX ${CMAKE_IMPORT_LIBRARY_SUFFIX} PARENT_SCOPE)
765 set(LLVM_HOST_EXECUTABLE_SUFFIX ${CMAKE_EXECUTABLE_SUFFIX} PARENT_SCOPE)
766 set(LLVM_HOST_LINK_LIBRARY_SUFFIX ${CMAKE_LINK_LIBRARY_SUFFIX} PARENT_SCOPE)
770 llvm_get_host_prefixes_and_suffixes()