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)
20 # x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly.
21 if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND
22 CMAKE_SIZEOF_VOID_P EQUAL 8 )
23 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt")
26 # Helper macros and functions
27 macro(add_cxx_include result files)
29 foreach (file_name ${files})
30 set(${result} "${${result}}#include<${file_name}>\n")
32 endmacro(add_cxx_include files result)
34 function(check_type_exists type files variable)
35 add_cxx_include(includes "${files}")
36 CHECK_CXX_SOURCE_COMPILES("
37 ${includes} ${type} typeVar;
45 check_include_file_cxx(cxxabi.h HAVE_CXXABI_H)
46 check_include_file(dirent.h HAVE_DIRENT_H)
47 check_include_file(dlfcn.h HAVE_DLFCN_H)
48 check_include_file(errno.h HAVE_ERRNO_H)
49 check_include_file(execinfo.h HAVE_EXECINFO_H)
50 check_include_file(fcntl.h HAVE_FCNTL_H)
51 check_include_file(inttypes.h HAVE_INTTYPES_H)
52 check_include_file(limits.h HAVE_LIMITS_H)
53 check_include_file(malloc.h HAVE_MALLOC_H)
54 check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
55 check_include_file(ndir.h HAVE_NDIR_H)
56 if( NOT PURE_WINDOWS )
57 check_include_file(pthread.h HAVE_PTHREAD_H)
59 check_include_file(signal.h HAVE_SIGNAL_H)
60 check_include_file(stdint.h HAVE_STDINT_H)
61 check_include_file(sys/dir.h HAVE_SYS_DIR_H)
62 check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H)
63 check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
64 check_include_file(sys/ndir.h HAVE_SYS_NDIR_H)
65 check_include_file(sys/param.h HAVE_SYS_PARAM_H)
66 check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H)
67 check_include_file(sys/stat.h HAVE_SYS_STAT_H)
68 check_include_file(sys/time.h HAVE_SYS_TIME_H)
69 check_include_file(sys/uio.h HAVE_SYS_UIO_H)
70 check_include_file(sys/wait.h HAVE_SYS_WAIT_H)
71 check_include_file(termios.h HAVE_TERMIOS_H)
72 check_include_file(unistd.h HAVE_UNISTD_H)
73 check_include_file(utime.h HAVE_UTIME_H)
74 check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
75 check_include_file(zlib.h HAVE_ZLIB_H)
76 check_include_file(fenv.h HAVE_FENV_H)
77 check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
78 check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
80 check_include_file(mach/mach.h HAVE_MACH_MACH_H)
81 check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H)
84 if( NOT PURE_WINDOWS )
85 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD)
87 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
88 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
89 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
91 # this could be Android
92 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC)
94 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC)
95 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT)
96 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK)
99 check_library_exists(dl dlopen "" HAVE_LIBDL)
100 check_library_exists(rt clock_gettime "" HAVE_LIBRT)
101 if (LLVM_ENABLE_ZLIB)
102 check_library_exists(z compress2 "" HAVE_LIBZ)
106 check_library_exists(edit el_init "" HAVE_LIBEDIT)
107 if(LLVM_ENABLE_TERMINFO)
109 foreach(library tinfo terminfo curses ncurses ncursesw)
110 string(TOUPPER ${library} library_suffix)
111 check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix})
112 if(HAVE_TERMINFO_${library_suffix})
114 set(TERMINFO_LIBS "${library}")
124 check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM)
125 check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE)
126 check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE)
127 check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE)
128 check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT)
129 check_symbol_exists(isatty unistd.h HAVE_ISATTY)
130 check_symbol_exists(isinf cmath HAVE_ISINF_IN_CMATH)
131 check_symbol_exists(isinf math.h HAVE_ISINF_IN_MATH_H)
132 check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H)
133 check_symbol_exists(isnan cmath HAVE_ISNAN_IN_CMATH)
134 check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H)
135 check_symbol_exists(ceilf math.h HAVE_CEILF)
136 check_symbol_exists(floorf math.h HAVE_FLOORF)
137 check_symbol_exists(fmodf math.h HAVE_FMODF)
138 check_symbol_exists(log math.h HAVE_LOG)
139 check_symbol_exists(log2 math.h HAVE_LOG2)
140 check_symbol_exists(log10 math.h HAVE_LOG10)
141 check_symbol_exists(exp math.h HAVE_EXP)
142 check_symbol_exists(exp2 math.h HAVE_EXP2)
143 check_symbol_exists(exp10 math.h HAVE_EXP10)
144 check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS)
145 check_symbol_exists(futimes sys/time.h HAVE_FUTIMES)
147 check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP)
148 check_symbol_exists(setjmp setjmp.h HAVE_SETJMP)
149 check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP)
150 check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP)
153 check_symbol_exists(writev sys/uio.h HAVE_WRITEV)
155 check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF)
156 check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO)
157 check_symbol_exists(malloc_zone_statistics malloc/malloc.h
158 HAVE_MALLOC_ZONE_STATISTICS)
159 check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP)
160 check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP)
161 check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP)
162 check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR)
163 check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR)
164 check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR)
165 check_symbol_exists(getcwd unistd.h HAVE_GETCWD)
166 check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY)
167 check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT)
168 check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN)
169 check_symbol_exists(pread unistd.h HAVE_PREAD)
170 check_symbol_exists(realpath stdlib.h HAVE_REALPATH)
171 check_symbol_exists(sbrk unistd.h HAVE_SBRK)
172 check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48)
173 if( HAVE_RAND48_SRAND48 )
174 check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48)
175 if( HAVE_RAND48_LRAND48 )
176 check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48)
177 if( HAVE_RAND48_DRAND48 )
178 set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?")
182 check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL)
183 check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ)
184 check_symbol_exists(strerror string.h HAVE_STRERROR)
185 check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
186 check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S)
187 check_symbol_exists(setenv stdlib.h HAVE_SETENV)
189 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
191 check_function_exists(_alloca HAVE__ALLOCA)
192 check_function_exists(__alloca HAVE___ALLOCA)
193 check_function_exists(__chkstk HAVE___CHKSTK)
194 check_function_exists(___chkstk HAVE____CHKSTK)
196 check_function_exists(__ashldi3 HAVE___ASHLDI3)
197 check_function_exists(__ashrdi3 HAVE___ASHRDI3)
198 check_function_exists(__divdi3 HAVE___DIVDI3)
199 check_function_exists(__fixdfdi HAVE___FIXDFDI)
200 check_function_exists(__fixsfdi HAVE___FIXSFDI)
201 check_function_exists(__floatdidf HAVE___FLOATDIDF)
202 check_function_exists(__lshrdi3 HAVE___LSHRDI3)
203 check_function_exists(__moddi3 HAVE___MODDI3)
204 check_function_exists(__udivdi3 HAVE___UDIVDI3)
205 check_function_exists(__umoddi3 HAVE___UMODDI3)
207 check_function_exists(__main HAVE___MAIN)
208 check_function_exists(__cmpdi2 HAVE___CMPDI2)
212 list(APPEND CMAKE_REQUIRED_LIBRARIES dl)
214 check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR)
215 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN)
217 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl)
221 check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
222 if( LLVM_USING_GLIBC )
223 add_llvm_definitions( -D_GNU_SOURCE )
226 set(headers "sys/types.h")
229 set(headers ${headers} "inttypes.h")
233 set(headers ${headers} "stdint.h")
236 check_type_exists(int64_t "${headers}" HAVE_INT64_T)
237 check_type_exists(uint64_t "${headers}" HAVE_UINT64_T)
238 check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T)
240 # available programs checks
241 function(llvm_find_program name)
242 string(TOUPPER ${name} NAME)
243 string(REGEX REPLACE "\\." "_" NAME ${NAME})
245 find_program(LLVM_PATH_${NAME} NAMES ${ARGV})
246 mark_as_advanced(LLVM_PATH_${NAME})
247 if(LLVM_PATH_${NAME})
248 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?")
249 mark_as_advanced(HAVE_${NAME})
250 else(LLVM_PATH_${NAME})
251 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?")
252 endif(LLVM_PATH_${NAME})
255 if (LLVM_ENABLE_DOXYGEN)
256 llvm_find_program(dot)
259 if( LLVM_ENABLE_FFI )
260 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
261 if( EXISTS "${FFI_INCLUDE_PATH}/ffi.h" )
262 set(FFI_HEADER ffi.h CACHE INTERNAL "")
263 set(HAVE_FFI_H 1 CACHE INTERNAL "")
265 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR})
266 if( EXISTS "${FFI_INCLUDE_PATH}/ffi/ffi.h" )
267 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "")
268 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "")
273 message(FATAL_ERROR "libffi includes are not found.")
276 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR})
277 if( NOT FFI_LIBRARY_PATH )
278 message(FATAL_ERROR "libffi is not found.")
281 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
282 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
283 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL)
284 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH})
285 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH})
287 unset(HAVE_FFI_FFI_H CACHE)
288 unset(HAVE_FFI_H CACHE)
289 unset(HAVE_FFI_CALL CACHE)
290 endif( LLVM_ENABLE_FFI )
292 # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported.
295 if( LLVM_ENABLE_PIC )
301 check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG)
303 set(USE_NO_MAYBE_UNINITIALIZED 0)
304 set(USE_NO_UNINITIALIZED 0)
306 # Disable gcc's potentially uninitialized use analysis as it presents lots of
308 if (CMAKE_COMPILER_IS_GNUCXX)
309 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED)
310 if (HAS_MAYBE_UNINITIALIZED)
311 set(USE_NO_MAYBE_UNINITIALIZED 1)
313 # Only recent versions of gcc make the distinction between -Wuninitialized
314 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just
315 # turn off all uninitialized use warnings.
316 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED)
317 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED})
321 # By default, we target the host, but this can be overridden at CMake
323 include(GetHostTriple)
324 get_host_triple(LLVM_INFERRED_HOST_TRIPLE)
326 set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING
327 "Host on which LLVM binaries will run")
329 # Determine the native architecture.
330 string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH)
331 if( LLVM_NATIVE_ARCH STREQUAL "host" )
332 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE})
335 if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86")
336 set(LLVM_NATIVE_ARCH X86)
337 elseif (LLVM_NATIVE_ARCH STREQUAL "x86")
338 set(LLVM_NATIVE_ARCH X86)
339 elseif (LLVM_NATIVE_ARCH STREQUAL "amd64")
340 set(LLVM_NATIVE_ARCH X86)
341 elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64")
342 set(LLVM_NATIVE_ARCH X86)
343 elseif (LLVM_NATIVE_ARCH MATCHES "sparc")
344 set(LLVM_NATIVE_ARCH Sparc)
345 elseif (LLVM_NATIVE_ARCH MATCHES "powerpc")
346 set(LLVM_NATIVE_ARCH PowerPC)
347 elseif (LLVM_NATIVE_ARCH MATCHES "aarch64")
348 set(LLVM_NATIVE_ARCH AArch64)
349 elseif (LLVM_NATIVE_ARCH MATCHES "arm64")
350 set(LLVM_NATIVE_ARCH AArch64)
351 elseif (LLVM_NATIVE_ARCH MATCHES "arm")
352 set(LLVM_NATIVE_ARCH ARM)
353 elseif (LLVM_NATIVE_ARCH MATCHES "mips")
354 set(LLVM_NATIVE_ARCH Mips)
355 elseif (LLVM_NATIVE_ARCH MATCHES "xcore")
356 set(LLVM_NATIVE_ARCH XCore)
357 elseif (LLVM_NATIVE_ARCH MATCHES "msp430")
358 set(LLVM_NATIVE_ARCH MSP430)
359 elseif (LLVM_NATIVE_ARCH MATCHES "hexagon")
360 set(LLVM_NATIVE_ARCH Hexagon)
361 elseif (LLVM_NATIVE_ARCH MATCHES "s390x")
362 set(LLVM_NATIVE_ARCH SystemZ)
364 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
367 # If build targets includes "host", then replace with native architecture.
368 list(FIND LLVM_TARGETS_TO_BUILD "host" idx)
370 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx})
371 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH})
372 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD)
375 list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
376 if (NATIVE_ARCH_IDX EQUAL -1)
378 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code")
380 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}")
381 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
382 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
383 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC)
384 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
386 # We don't have an ASM parser for all architectures yet.
387 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt)
388 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser)
391 # We don't have an disassembler for all architectures yet.
392 if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt)
393 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler)
398 set(HAVE_LIBIMAGEHLP 1)
400 set(HAVE_LIBSHELL32 1)
401 # TODO: Check existence of libraries.
402 # include(CheckLibraryExists)
403 # CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP)
406 if (NOT HAVE_STRTOLL)
407 # Use _strtoi64 if strtoll is not available.
408 check_symbol_exists(_strtoi64 stdlib.h have_strtoi64)
411 set(strtoll "_strtoi64")
412 set(strtoull "_strtoui64")
418 set(stricmp "_stricmp")
419 set(strdup "_strdup")
423 CHECK_CXX_SOURCE_COMPILES("
425 #include <imagehlp.h>
426 extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK);
427 extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID));
428 int main(){return 0;}"
430 if( HAVE_ELMCB_PCSTR )
431 set(WIN32_ELMCB_PCSTR "PCSTR")
433 set(WIN32_ELMCB_PCSTR "PSTR")
435 endif( PURE_WINDOWS )
437 # FIXME: Signal handler return type, currently hardcoded to 'void'
440 if( LLVM_ENABLE_THREADS )
441 # Check if threading primitives aren't supported on this platform
442 if( NOT HAVE_PTHREAD_H AND NOT WIN32 )
443 set(LLVM_ENABLE_THREADS 0)
447 if( LLVM_ENABLE_THREADS )
448 message(STATUS "Threads enabled.")
449 else( LLVM_ENABLE_THREADS )
450 message(STATUS "Threads disabled.")
453 if (LLVM_ENABLE_ZLIB )
454 # Check if zlib is available in the system.
455 if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ )
456 set(LLVM_ENABLE_ZLIB 0)
460 set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX})
462 if (LLVM_ENABLE_DOXYGEN)
463 message(STATUS "Doxygen enabled.")
464 find_package(Doxygen REQUIRED)
467 # If we find doxygen and we want to enable doxygen by default create a
468 # global aggregate doxygen target for generating llvm and any/all
469 # subprojects doxygen documentation.
471 add_custom_target(doxygen ALL)
474 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF)
475 if (LLVM_DOXYGEN_EXTERNAL_SEARCH)
476 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external searhc.")
477 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings")
481 message(STATUS "Doxygen disabled.")
484 if (LLVM_ENABLE_SPHINX)
485 message(STATUS "Sphinx enabled.")
486 find_package(Sphinx REQUIRED)
488 add_custom_target(sphinx ALL)
491 message(STATUS "Sphinx disabled.")