1 if( WIN32 AND NOT CYGWIN )
2 # We consider Cygwin as another Unix
6 include(CheckIncludeFile)
7 include(CheckIncludeFileCXX)
8 include(CheckLibraryExists)
9 include(CheckSymbolExists)
10 include(CheckFunctionExists)
11 include(CheckCXXSourceCompiles)
12 include(TestBigEndian)
14 include(HandleLLVMStdlib)
16 if( UNIX AND NOT BEOS )
17 # Used by check_symbol_exists:
18 set(CMAKE_REQUIRED_LIBRARIES m)
21 # Helper macros and functions
22 macro(add_cxx_include result files)
24 foreach (file_name ${files})
25 set(${result} "${${result}}#include<${file_name}>\n")
27 endmacro(add_cxx_include files result)
29 function(check_type_exists type files variable)
30 add_cxx_include(includes "${files}")
31 CHECK_CXX_SOURCE_COMPILES("
32 ${includes} ${type} typeVar;
40 check_include_file_cxx(cxxabi.h HAVE_CXXABI_H)
41 check_include_file(dirent.h HAVE_DIRENT_H)
42 check_include_file(dlfcn.h HAVE_DLFCN_H)
43 check_include_file(errno.h HAVE_ERRNO_H)
44 check_include_file(execinfo.h HAVE_EXECINFO_H)
45 check_include_file(fcntl.h HAVE_FCNTL_H)
46 check_include_file(inttypes.h HAVE_INTTYPES_H)
47 check_include_file(limits.h HAVE_LIMITS_H)
48 check_include_file(malloc.h HAVE_MALLOC_H)
49 check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
50 check_include_file(ndir.h HAVE_NDIR_H)
51 if( NOT PURE_WINDOWS )
52 check_include_file(pthread.h HAVE_PTHREAD_H)
54 check_include_file(signal.h HAVE_SIGNAL_H)
55 check_include_file(stdint.h HAVE_STDINT_H)
56 check_include_file(sys/dir.h HAVE_SYS_DIR_H)
57 check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H)
58 check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
59 check_include_file(sys/ndir.h HAVE_SYS_NDIR_H)
60 check_include_file(sys/param.h HAVE_SYS_PARAM_H)
61 check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
62 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
63 check_include_file(sys/time.h HAVE_SYS_TIME_H)
64 check_include_file(sys/uio.h HAVE_SYS_UIO_H)
65 check_include_file(sys/wait.h HAVE_SYS_WAIT_H)
66 check_include_file(termios.h HAVE_TERMIOS_H)
67 check_include_file(unistd.h HAVE_UNISTD_H)
68 check_include_file(utime.h HAVE_UTIME_H)
69 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
70 check_include_file(zlib.h HAVE_ZLIB_H)
71 check_include_file(fenv.h HAVE_FENV_H)
72 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
73 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
75 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
76 check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H)
79 if( NOT PURE_WINDOWS )
80 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
82 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
83 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
84 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
86 # this could be Android
87 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC)
89 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
90 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
91 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
94 check_library_exists(dl dlopen "" HAVE_LIBDL)
95 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
97 check_library_exists(z compress2 "" HAVE_LIBZ)
101 check_library_exists(edit el_init "" HAVE_LIBEDIT)
102 if(LLVM_ENABLE_TERMINFO)
104 foreach(library tinfo terminfo curses ncurses ncursesw)
105 string(TOUPPER ${library} library_suffix)
106 check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix})
107 if(HAVE_TERMINFO_${library_suffix})
109 set(TERMINFO_LIBS "${library}")
119 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
120 check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE)
121 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
122 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
123 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
124 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
125 check_symbol_exists(isinf cmath HAVE_ISINF_IN_CMATH)
126 check_symbol_exists(isinf math.h HAVE_ISINF_IN_MATH_H)
127 check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H)
128 check_symbol_exists(isnan cmath HAVE_ISNAN_IN_CMATH)
129 check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H)
130 check_symbol_exists(ceilf math.h HAVE_CEILF)
131 check_symbol_exists(floorf math.h HAVE_FLOORF)
132 check_symbol_exists(fmodf math.h HAVE_FMODF)
133 check_symbol_exists(log math.h HAVE_LOG)
134 check_symbol_exists(log2 math.h HAVE_LOG2)
135 check_symbol_exists(log10 math.h HAVE_LOG10)
136 check_symbol_exists(exp math.h HAVE_EXP)
137 check_symbol_exists(exp2 math.h HAVE_EXP2)
138 check_symbol_exists(exp10 math.h HAVE_EXP10)
139 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
140 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
142 check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP)
143 check_symbol_exists(setjmp setjmp.h HAVE_SETJMP)
144 check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP)
145 check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP)
148 check_symbol_exists(writev sys/uio.h HAVE_WRITEV)
150 check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF)
151 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
152 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
153 HAVE_MALLOC_ZONE_STATISTICS)
154 check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP)
155 check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP)
156 check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP)
157 check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR)
158 check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR)
159 check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR)
160 check_symbol_exists(getcwd unistd.h HAVE_GETCWD)
161 check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
162 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
163 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
164 check_symbol_exists(pread unistd.h HAVE_PREAD)
165 check_symbol_exists(realpath stdlib.h HAVE_REALPATH)
166 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
167 check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48)
168 if( HAVE_RAND48_SRAND48 )
169 check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48)
170 if( HAVE_RAND48_LRAND48 )
171 check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48)
172 if( HAVE_RAND48_DRAND48 )
173 set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?")
177 check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL)
178 check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ)
179 check_symbol_exists(strerror string.h HAVE_STRERROR)
180 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
181 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S)
182 check_symbol_exists(setenv stdlib.h HAVE_SETENV)
184 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
186 check_function_exists(_alloca HAVE__ALLOCA)
187 check_function_exists(__alloca HAVE___ALLOCA)
188 check_function_exists(__chkstk HAVE___CHKSTK)
189 check_function_exists(___chkstk HAVE____CHKSTK)
191 check_function_exists(__ashldi3 HAVE___ASHLDI3)
192 check_function_exists(__ashrdi3 HAVE___ASHRDI3)
193 check_function_exists(__divdi3 HAVE___DIVDI3)
194 check_function_exists(__fixdfdi HAVE___FIXDFDI)
195 check_function_exists(__fixsfdi HAVE___FIXSFDI)
196 check_function_exists(__floatdidf HAVE___FLOATDIDF)
197 check_function_exists(__lshrdi3 HAVE___LSHRDI3)
198 check_function_exists(__moddi3 HAVE___MODDI3)
199 check_function_exists(__udivdi3 HAVE___UDIVDI3)
200 check_function_exists(__umoddi3 HAVE___UMODDI3)
202 check_function_exists(__main HAVE___MAIN)
203 check_function_exists(__cmpdi2 HAVE___CMPDI2)
207 list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
209 check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR)
210 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN)
212 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl)
216 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
217 if( LLVM_USING_GLIBC )
218 add_llvm_definitions( -D_GNU_SOURCE )
221 set(headers "sys/types.h")
224 set(headers ${headers} "inttypes.h")
228 set(headers ${headers} "stdint.h")
231 check_type_exists(int64_t "${headers}" HAVE_INT64_T)
232 check_type_exists(uint64_t "${headers}" HAVE_UINT64_T)
233 check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T)
235 # available programs checks
236 function(llvm_find_program name)
237 string(TOUPPER ${name} NAME)
238 string(REGEX REPLACE "\\." "_" NAME ${NAME})
240 find_program(LLVM_PATH_${NAME} NAMES ${ARGV})
241 mark_as_advanced(LLVM_PATH_${NAME})
242 if(LLVM_PATH_${NAME})
243 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?")
244 mark_as_advanced(HAVE_${NAME})
245 else(LLVM_PATH_${NAME})
246 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?")
247 endif(LLVM_PATH_${NAME})
250 llvm_find_program(gv)
251 llvm_find_program(circo)
252 llvm_find_program(twopi)
253 llvm_find_program(neato)
254 llvm_find_program(fdp)
255 llvm_find_program(dot)
256 llvm_find_program(dotty)
257 llvm_find_program(xdot xdot.py)
258 llvm_find_program(Graphviz)
260 if( LLVM_ENABLE_FFI )
261 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
262 if( FFI_INCLUDE_PATH )
263 set(FFI_HEADER ffi.h CACHE INTERNAL "")
264 set(HAVE_FFI_H 1 CACHE INTERNAL "")
266 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR})
267 if( FFI_INCLUDE_PATH )
268 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "")
269 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "")
274 message(FATAL_ERROR "libffi includes are not found.")
277 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR})
278 if( NOT FFI_LIBRARY_PATH )
279 message(FATAL_ERROR "libffi is not found.")
282 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
283 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
284 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL)
285 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
286 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
288 unset(HAVE_FFI_FFI_H CACHE)
289 unset(HAVE_FFI_H CACHE)
290 unset(HAVE_FFI_CALL CACHE)
291 endif( LLVM_ENABLE_FFI )
293 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported.
296 if( LLVM_ENABLE_PIC )
302 find_package(LibXml2)
304 set(CLANG_HAVE_LIBXML 1)
305 # When cross-compiling, liblzma is not detected as a dependency for libxml2,
306 # which makes linking c-index-test fail. But for native builds, all libraries
307 # are installed and checked by CMake before Makefiles are generated and everything
308 # works according to the plan. However, if a -llzma is added to native builds,
309 # an additional requirement on the static liblzma.a is required, but will not
310 # be checked by CMake, breaking native compilation.
311 # Since this is only pertinent to cross-compilations, and there's no way CMake
312 # can check for every foreign library on every OS, we add the dep and warn the dev.
313 if ( CMAKE_CROSSCOMPILING )
314 if (NOT PC_LIBXML_VERSION VERSION_LESS "2.8.0")
315 message(STATUS "Adding LZMA as a dep to XML2 for cross-compilation, make sure liblzma.a is available.")
316 set(LIBXML2_LIBRARIES ${LIBXML2_LIBRARIES} "-llzma")
321 check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
323 set(USE_NO_MAYBE_UNINITIALIZED 0)
324 set(USE_NO_UNINITIALIZED 0)
326 # Disable gcc's potentially uninitialized use analysis as it presents lots of
328 if (CMAKE_COMPILER_IS_GNUCXX)
329 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED)
330 if (HAS_MAYBE_UNINITIALIZED)
331 set(USE_NO_MAYBE_UNINITIALIZED 1)
333 # Only recent versions of gcc make the distinction between -Wuninitialized
334 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just
335 # turn off all uninitialized use warnings.
336 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED)
337 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED})
341 # By default, we target the host, but this can be overridden at CMake
343 include(GetHostTriple)
344 get_host_triple(LLVM_INFERRED_HOST_TRIPLE)
346 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING
347 "Host on which LLVM binaries will run")
349 # Determine the native architecture.
350 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
351 if( LLVM_NATIVE_ARCH STREQUAL "host" )
352 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
355 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
356 set(LLVM_NATIVE_ARCH X86)
357 elseif (LLVM_NATIVE_ARCH STREQUAL "x86")
358 set(LLVM_NATIVE_ARCH X86)
359 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64")
360 set(LLVM_NATIVE_ARCH X86)
361 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64")
362 set(LLVM_NATIVE_ARCH X86)
363 elseif (LLVM_NATIVE_ARCH MATCHES "sparc")
364 set(LLVM_NATIVE_ARCH Sparc)
365 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc")
366 set(LLVM_NATIVE_ARCH PowerPC)
367 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64")
368 set(LLVM_NATIVE_ARCH AArch64)
369 elseif (LLVM_NATIVE_ARCH MATCHES "arm64")
370 set(LLVM_NATIVE_ARCH ARM64)
371 elseif (LLVM_NATIVE_ARCH MATCHES "arm")
372 set(LLVM_NATIVE_ARCH ARM)
373 elseif (LLVM_NATIVE_ARCH MATCHES "mips")
374 set(LLVM_NATIVE_ARCH Mips)
375 elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
376 set(LLVM_NATIVE_ARCH XCore)
377 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
378 set(LLVM_NATIVE_ARCH MSP430)
379 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
380 set(LLVM_NATIVE_ARCH Hexagon)
381 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
382 set(LLVM_NATIVE_ARCH SystemZ)
384 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
387 # If build targets includes "host", then replace with native architecture.
388 list(FIND LLVM_TARGETS_TO_BUILD "host" idx)
390 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx})
391 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH})
392 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)
395 list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
396 if (NATIVE_ARCH_IDX EQUAL -1)
398 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
400 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
401 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
402 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
403 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC)
404 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
406 # We don't have an ASM parser for all architectures yet.
407 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt)
408 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser)
411 # We don't have an disassembler for all architectures yet.
412 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt)
413 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler)
418 set(HAVE_LIBIMAGEHLP 1)
420 set(HAVE_LIBSHELL32 1)
421 # TODO: Check existence of libraries.
422 # include(CheckLibraryExists)
423 # CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP)
426 if (NOT HAVE_STRTOLL)
427 # Use _strtoi64 if strtoll is not available.
428 check_symbol_exists(_strtoi64 stdlib.h have_strtoi64)
431 set(strtoll "_strtoi64")
432 set(strtoull "_strtoui64")
438 set(stricmp "_stricmp")
439 set(strdup "_strdup")
443 CHECK_CXX_SOURCE_COMPILES("
445 #include <imagehlp.h>
446 extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK);
447 extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
448 int main(){return 0;}"
450 if( HAVE_ELMCB_PCSTR )
451 set(WIN32_ELMCB_PCSTR "PCSTR")
453 set(WIN32_ELMCB_PCSTR "PSTR")
455 endif( PURE_WINDOWS )
457 # FIXME: Signal handler return type, currently hardcoded to 'void'
460 if( LLVM_ENABLE_THREADS )
461 # Check if threading primitives aren't supported on this platform
462 if( NOT HAVE_PTHREAD_H AND NOT WIN32 )
463 set(LLVM_ENABLE_THREADS 0)
467 if( LLVM_ENABLE_THREADS )
468 message(STATUS "Threads enabled.")
469 else( LLVM_ENABLE_THREADS )
470 message(STATUS "Threads disabled.")
473 if (LLVM_ENABLE_ZLIB )
474 # Check if zlib is available in the system.
475 if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
476 set(LLVM_ENABLE_ZLIB 0)
480 set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX})
482 if (LLVM_ENABLE_DOXYGEN)
483 message(STATUS "Doxygen enabled.")
484 find_package(Doxygen)
487 # If we find doxygen and we want to enable doxygen by default create a
488 # global aggregate doxygen target for generating llvm and any/all
489 # subprojects doxygen documentation.
491 add_custom_target(doxygen ALL)
494 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF)
495 if (LLVM_DOXYGEN_EXTERNAL_SEARCH)
496 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external searhc.")
497 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings")
501 message(STATUS "Doxygen disabled.")