1if( WIN32 AND NOT CYGWIN ) 2 # We consider Cygwin as another Unix 3 set(PURE_WINDOWS 1) 4endif() 5 6include(CheckIncludeFile) 7include(CheckLibraryExists) 8include(CheckSymbolExists) 9include(CheckFunctionExists) 10include(CheckStructHasMember) 11include(CheckCCompilerFlag) 12include(CMakePushCheckState) 13 14include(CheckCompilerVersion) 15include(HandleLLVMStdlib) 16 17if( UNIX AND NOT (APPLE OR BEOS OR HAIKU) ) 18 # Used by check_symbol_exists: 19 list(APPEND CMAKE_REQUIRED_LIBRARIES "m") 20endif() 21# x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly. 22if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND 23 CMAKE_SIZEOF_VOID_P EQUAL 8 ) 24 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt") 25endif() 26 27# Do checks with _XOPEN_SOURCE and large-file API on AIX, because we will build 28# with those too. 29if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX") 30 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_XOPEN_SOURCE=700") 31 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_LARGE_FILE_API") 32endif() 33 34# Do checks with _FILE_OFFSET_BITS=64 on Solaris, because we will build 35# with those too. 36if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "SunOS") 37 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64") 38endif() 39 40# include checks 41check_include_file(dlfcn.h HAVE_DLFCN_H) 42check_include_file(errno.h HAVE_ERRNO_H) 43check_include_file(fcntl.h HAVE_FCNTL_H) 44check_include_file(link.h HAVE_LINK_H) 45check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H) 46if( NOT PURE_WINDOWS ) 47 check_include_file(pthread.h HAVE_PTHREAD_H) 48endif() 49check_include_file(signal.h HAVE_SIGNAL_H) 50check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H) 51check_include_file(sys/mman.h HAVE_SYS_MMAN_H) 52check_include_file(sys/param.h HAVE_SYS_PARAM_H) 53check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) 54check_include_file(sys/stat.h HAVE_SYS_STAT_H) 55check_include_file(sys/time.h HAVE_SYS_TIME_H) 56check_include_file(sys/types.h HAVE_SYS_TYPES_H) 57check_include_file(sysexits.h HAVE_SYSEXITS_H) 58check_include_file(termios.h HAVE_TERMIOS_H) 59check_include_file(unistd.h HAVE_UNISTD_H) 60check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H) 61check_include_file(fenv.h HAVE_FENV_H) 62check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT) 63check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT) 64 65check_include_file(mach/mach.h HAVE_MACH_MACH_H) 66check_include_file(histedit.h HAVE_HISTEDIT_H) 67check_include_file(CrashReporterClient.h HAVE_CRASHREPORTERCLIENT_H) 68if(APPLE) 69 include(CheckCSourceCompiles) 70 CHECK_C_SOURCE_COMPILES(" 71 static const char *__crashreporter_info__ = 0; 72 asm(\".desc ___crashreporter_info__, 0x10\"); 73 int main() { return 0; }" 74 HAVE_CRASHREPORTER_INFO) 75endif() 76 77if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux") 78 check_include_file(linux/magic.h HAVE_LINUX_MAGIC_H) 79 if(NOT HAVE_LINUX_MAGIC_H) 80 # older kernels use split files 81 check_include_file(linux/nfs_fs.h HAVE_LINUX_NFS_FS_H) 82 check_include_file(linux/smb.h HAVE_LINUX_SMB_H) 83 endif() 84endif() 85 86# library checks 87if( NOT PURE_WINDOWS ) 88 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD) 89 if (HAVE_LIBPTHREAD) 90 check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 91 check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 92 check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 93 else() 94 # this could be Android 95 check_library_exists(c pthread_create "" PTHREAD_IN_LIBC) 96 if (PTHREAD_IN_LIBC) 97 check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) 98 check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 99 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 100 endif() 101 endif() 102 check_library_exists(dl dlopen "" HAVE_LIBDL) 103 check_library_exists(rt clock_gettime "" HAVE_LIBRT) 104endif() 105 106# Check for libpfm. 107include(FindLibpfm) 108 109if(HAVE_LIBPTHREAD) 110 # We want to find pthreads library and at the moment we do want to 111 # have it reported as '-l<lib>' instead of '-pthread'. 112 # TODO: switch to -pthread once the rest of the build system can deal with it. 113 set(CMAKE_THREAD_PREFER_PTHREAD TRUE) 114 set(THREADS_HAVE_PTHREAD_ARG Off) 115 find_package(Threads REQUIRED) 116 set(LLVM_PTHREAD_LIB ${CMAKE_THREAD_LIBS_INIT}) 117endif() 118 119if(LLVM_ENABLE_ZLIB) 120 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON) 121 find_package(ZLIB REQUIRED) 122 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 123 find_package(ZLIB) 124 endif() 125 if(ZLIB_FOUND) 126 # Check if zlib we found is usable; for example, we may have found a 32-bit 127 # library on a 64-bit system which would result in a link-time failure. 128 cmake_push_check_state() 129 list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS}) 130 list(APPEND CMAKE_REQUIRED_LIBRARIES ${ZLIB_LIBRARY}) 131 check_symbol_exists(compress2 zlib.h HAVE_ZLIB) 132 cmake_pop_check_state() 133 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON AND NOT HAVE_ZLIB) 134 message(FATAL_ERROR "Failed to configure zlib") 135 endif() 136 endif() 137 set(LLVM_ENABLE_ZLIB "${HAVE_ZLIB}") 138endif() 139 140if(LLVM_ENABLE_LIBXML2) 141 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON) 142 find_package(LibXml2 REQUIRED) 143 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 144 find_package(LibXml2) 145 endif() 146 if(LibXml2_FOUND) 147 # Check if libxml2 we found is usable; for example, we may have found a 32-bit 148 # library on a 64-bit system which would result in a link-time failure. 149 cmake_push_check_state() 150 list(APPEND CMAKE_REQUIRED_INCLUDES ${LIBXML2_INCLUDE_DIRS}) 151 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBXML2_LIBRARIES}) 152 check_symbol_exists(xmlReadMemory libxml/xmlreader.h HAVE_LIBXML2) 153 cmake_pop_check_state() 154 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON AND NOT HAVE_LIBXML2) 155 message(FATAL_ERROR "Failed to configure libxml2") 156 endif() 157 endif() 158 set(LLVM_ENABLE_LIBXML2 "${HAVE_LIBXML2}") 159endif() 160 161# Don't look for these libraries if we're using MSan, since uninstrumented third 162# party code may call MSan interceptors like strlen, leading to false positives. 163if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 164 # Don't look for these libraries on Windows. 165 if (NOT PURE_WINDOWS) 166 # Skip libedit if using ASan as it contains memory leaks. 167 if (LLVM_ENABLE_LIBEDIT AND HAVE_HISTEDIT_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*") 168 check_library_exists(edit el_init "" HAVE_LIBEDIT) 169 else() 170 set(HAVE_LIBEDIT 0) 171 endif() 172 if(LLVM_ENABLE_TERMINFO STREQUAL FORCE_ON) 173 set(MAYBE_REQUIRED REQUIRED) 174 else() 175 set(MAYBE_REQUIRED) 176 endif() 177 if(LLVM_ENABLE_TERMINFO) 178 find_library(TERMINFO_LIB NAMES terminfo tinfo curses ncurses ncursesw ${MAYBE_REQUIRED}) 179 endif() 180 if(TERMINFO_LIB) 181 set(LLVM_ENABLE_TERMINFO 1) 182 else() 183 set(LLVM_ENABLE_TERMINFO 0) 184 endif() 185 else() 186 set(LLVM_ENABLE_TERMINFO 0) 187 endif() 188else() 189 set(LLVM_ENABLE_TERMINFO 0) 190endif() 191 192check_library_exists(xar xar_open "" HAVE_LIBXAR) 193if(HAVE_LIBXAR) 194 set(XAR_LIB xar) 195endif() 196 197# function checks 198check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM) 199find_package(Backtrace) 200set(HAVE_BACKTRACE ${Backtrace_FOUND}) 201set(BACKTRACE_HEADER ${Backtrace_HEADER}) 202 203# Prevent check_symbol_exists from using API that is not supported for a given 204# deployment target. 205check_c_compiler_flag("-Werror=unguarded-availability-new" "C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW") 206if(C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW) 207 set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unguarded-availability-new") 208endif() 209 210# Determine whether we can register EH tables. 211check_symbol_exists(__register_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_REGISTER_FRAME) 212check_symbol_exists(__deregister_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_DEREGISTER_FRAME) 213 214check_symbol_exists(_Unwind_Backtrace "unwind.h" HAVE__UNWIND_BACKTRACE) 215check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE) 216check_symbol_exists(sysconf unistd.h HAVE_SYSCONF) 217check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE) 218check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT) 219check_symbol_exists(isatty unistd.h HAVE_ISATTY) 220check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) 221check_symbol_exists(futimes sys/time.h HAVE_FUTIMES) 222check_symbol_exists(posix_fallocate fcntl.h HAVE_POSIX_FALLOCATE) 223# AddressSanitizer conflicts with lib/Support/Unix/Signals.inc 224# Avoid sigaltstack on Apple platforms, where backtrace() cannot handle it 225# (rdar://7089625) and _Unwind_Backtrace is unusable because it cannot unwind 226# past the signal handler after an assertion failure (rdar://29866587). 227if( HAVE_SIGNAL_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*" AND NOT APPLE ) 228 check_symbol_exists(sigaltstack signal.h HAVE_SIGALTSTACK) 229endif() 230set(CMAKE_REQUIRED_DEFINITIONS "-D_LARGEFILE64_SOURCE") 231check_symbol_exists(lseek64 "sys/types.h;unistd.h" HAVE_LSEEK64) 232set(CMAKE_REQUIRED_DEFINITIONS "") 233check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL) 234check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO) 235check_symbol_exists(malloc_zone_statistics malloc/malloc.h 236 HAVE_MALLOC_ZONE_STATISTICS) 237check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT) 238check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN) 239check_symbol_exists(pread unistd.h HAVE_PREAD) 240check_symbol_exists(sbrk unistd.h HAVE_SBRK) 241check_symbol_exists(strerror string.h HAVE_STRERROR) 242check_symbol_exists(strerror_r string.h HAVE_STRERROR_R) 243check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S) 244check_symbol_exists(setenv stdlib.h HAVE_SETENV) 245if( PURE_WINDOWS ) 246 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S) 247 248 check_function_exists(_alloca HAVE__ALLOCA) 249 check_function_exists(__alloca HAVE___ALLOCA) 250 check_function_exists(__chkstk HAVE___CHKSTK) 251 check_function_exists(__chkstk_ms HAVE___CHKSTK_MS) 252 check_function_exists(___chkstk HAVE____CHKSTK) 253 check_function_exists(___chkstk_ms HAVE____CHKSTK_MS) 254 255 check_function_exists(__ashldi3 HAVE___ASHLDI3) 256 check_function_exists(__ashrdi3 HAVE___ASHRDI3) 257 check_function_exists(__divdi3 HAVE___DIVDI3) 258 check_function_exists(__fixdfdi HAVE___FIXDFDI) 259 check_function_exists(__fixsfdi HAVE___FIXSFDI) 260 check_function_exists(__floatdidf HAVE___FLOATDIDF) 261 check_function_exists(__lshrdi3 HAVE___LSHRDI3) 262 check_function_exists(__moddi3 HAVE___MODDI3) 263 check_function_exists(__udivdi3 HAVE___UDIVDI3) 264 check_function_exists(__umoddi3 HAVE___UMODDI3) 265 266 check_function_exists(__main HAVE___MAIN) 267 check_function_exists(__cmpdi2 HAVE___CMPDI2) 268endif() 269if( HAVE_DLFCN_H ) 270 if( HAVE_LIBDL ) 271 list(APPEND CMAKE_REQUIRED_LIBRARIES dl) 272 endif() 273 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN) 274 check_symbol_exists(dladdr dlfcn.h HAVE_DLADDR) 275 if( HAVE_LIBDL ) 276 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl) 277 endif() 278endif() 279 280CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec 281 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC) 282CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec 283 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC) 284 285check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC) 286if( LLVM_USING_GLIBC ) 287 add_definitions( -D_GNU_SOURCE ) 288 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE") 289endif() 290# This check requires _GNU_SOURCE 291if (NOT PURE_WINDOWS) 292 if (LLVM_PTHREAD_LIB) 293 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB}) 294 endif() 295 check_symbol_exists(pthread_getname_np pthread.h HAVE_PTHREAD_GETNAME_NP) 296 check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP) 297 if (LLVM_PTHREAD_LIB) 298 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB}) 299 endif() 300endif() 301 302# available programs checks 303function(llvm_find_program name) 304 string(TOUPPER ${name} NAME) 305 string(REGEX REPLACE "\\." "_" NAME ${NAME}) 306 307 find_program(LLVM_PATH_${NAME} NAMES ${ARGV}) 308 mark_as_advanced(LLVM_PATH_${NAME}) 309 if(LLVM_PATH_${NAME}) 310 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?") 311 mark_as_advanced(HAVE_${NAME}) 312 else(LLVM_PATH_${NAME}) 313 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?") 314 endif(LLVM_PATH_${NAME}) 315endfunction() 316 317if (LLVM_ENABLE_DOXYGEN) 318 llvm_find_program(dot) 319endif () 320 321if( LLVM_ENABLE_FFI ) 322 find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR}) 323 if( EXISTS "${FFI_INCLUDE_PATH}/ffi.h" ) 324 set(FFI_HEADER ffi.h CACHE INTERNAL "") 325 set(HAVE_FFI_H 1 CACHE INTERNAL "") 326 else() 327 find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR}) 328 if( EXISTS "${FFI_INCLUDE_PATH}/ffi/ffi.h" ) 329 set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "") 330 set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "") 331 endif() 332 endif() 333 334 if( NOT FFI_HEADER ) 335 message(FATAL_ERROR "libffi includes are not found.") 336 endif() 337 338 find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR}) 339 if( NOT FFI_LIBRARY_PATH ) 340 message(FATAL_ERROR "libffi is not found.") 341 endif() 342 343 list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 344 list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 345 check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL) 346 list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) 347 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) 348else() 349 unset(HAVE_FFI_FFI_H CACHE) 350 unset(HAVE_FFI_H CACHE) 351 unset(HAVE_FFI_CALL CACHE) 352endif( LLVM_ENABLE_FFI ) 353 354# Whether we can use std::is_trivially_copyable to verify llvm::is_trivially_copyable. 355CHECK_CXX_SOURCE_COMPILES(" 356#include <type_traits> 357struct T { int val; }; 358static_assert(std::is_trivially_copyable<T>::value, \"ok\"); 359int main() { return 0;} 360" HAVE_STD_IS_TRIVIALLY_COPYABLE) 361 362 363# Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported. 364include(CheckAtomic) 365 366if( LLVM_ENABLE_PIC ) 367 set(ENABLE_PIC 1) 368else() 369 set(ENABLE_PIC 0) 370 check_cxx_compiler_flag("-fno-pie" SUPPORTS_NO_PIE_FLAG) 371 if(SUPPORTS_NO_PIE_FLAG) 372 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie") 373 endif() 374endif() 375 376check_cxx_compiler_flag("-Wvariadic-macros" SUPPORTS_VARIADIC_MACROS_FLAG) 377check_cxx_compiler_flag("-Wgnu-zero-variadic-macro-arguments" 378 SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG) 379 380set(USE_NO_MAYBE_UNINITIALIZED 0) 381set(USE_NO_UNINITIALIZED 0) 382 383# Disable gcc's potentially uninitialized use analysis as it presents lots of 384# false positives. 385if (CMAKE_COMPILER_IS_GNUCXX) 386 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED) 387 if (HAS_MAYBE_UNINITIALIZED) 388 set(USE_NO_MAYBE_UNINITIALIZED 1) 389 else() 390 # Only recent versions of gcc make the distinction between -Wuninitialized 391 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just 392 # turn off all uninitialized use warnings. 393 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED) 394 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED}) 395 endif() 396endif() 397 398# By default, we target the host, but this can be overridden at CMake 399# invocation time. 400include(GetHostTriple) 401get_host_triple(LLVM_INFERRED_HOST_TRIPLE) 402 403set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING 404 "Host on which LLVM binaries will run") 405 406# Determine the native architecture. 407string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH) 408if( LLVM_NATIVE_ARCH STREQUAL "host" ) 409 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE}) 410endif () 411 412if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") 413 set(LLVM_NATIVE_ARCH X86) 414elseif (LLVM_NATIVE_ARCH STREQUAL "x86") 415 set(LLVM_NATIVE_ARCH X86) 416elseif (LLVM_NATIVE_ARCH STREQUAL "amd64") 417 set(LLVM_NATIVE_ARCH X86) 418elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64") 419 set(LLVM_NATIVE_ARCH X86) 420elseif (LLVM_NATIVE_ARCH MATCHES "sparc") 421 set(LLVM_NATIVE_ARCH Sparc) 422elseif (LLVM_NATIVE_ARCH MATCHES "powerpc") 423 set(LLVM_NATIVE_ARCH PowerPC) 424elseif (LLVM_NATIVE_ARCH MATCHES "ppc64le") 425 set(LLVM_NATIVE_ARCH PowerPC) 426elseif (LLVM_NATIVE_ARCH MATCHES "aarch64") 427 set(LLVM_NATIVE_ARCH AArch64) 428elseif (LLVM_NATIVE_ARCH MATCHES "arm64") 429 set(LLVM_NATIVE_ARCH AArch64) 430elseif (LLVM_NATIVE_ARCH MATCHES "arm") 431 set(LLVM_NATIVE_ARCH ARM) 432elseif (LLVM_NATIVE_ARCH MATCHES "avr") 433 set(LLVM_NATIVE_ARCH AVR) 434elseif (LLVM_NATIVE_ARCH MATCHES "mips") 435 set(LLVM_NATIVE_ARCH Mips) 436elseif (LLVM_NATIVE_ARCH MATCHES "xcore") 437 set(LLVM_NATIVE_ARCH XCore) 438elseif (LLVM_NATIVE_ARCH MATCHES "msp430") 439 set(LLVM_NATIVE_ARCH MSP430) 440elseif (LLVM_NATIVE_ARCH MATCHES "hexagon") 441 set(LLVM_NATIVE_ARCH Hexagon) 442elseif (LLVM_NATIVE_ARCH MATCHES "s390x") 443 set(LLVM_NATIVE_ARCH SystemZ) 444elseif (LLVM_NATIVE_ARCH MATCHES "wasm32") 445 set(LLVM_NATIVE_ARCH WebAssembly) 446elseif (LLVM_NATIVE_ARCH MATCHES "wasm64") 447 set(LLVM_NATIVE_ARCH WebAssembly) 448elseif (LLVM_NATIVE_ARCH MATCHES "riscv32") 449 set(LLVM_NATIVE_ARCH RISCV) 450elseif (LLVM_NATIVE_ARCH MATCHES "riscv64") 451 set(LLVM_NATIVE_ARCH RISCV) 452else () 453 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}") 454endif () 455 456# If build targets includes "host", then replace with native architecture. 457list(FIND LLVM_TARGETS_TO_BUILD "host" idx) 458if( NOT idx LESS 0 ) 459 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx}) 460 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH}) 461 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD) 462endif() 463 464list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX) 465if (NATIVE_ARCH_IDX EQUAL -1) 466 message(STATUS 467 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code") 468else () 469 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}") 470 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target) 471 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo) 472 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC) 473 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter) 474 475 # We don't have an ASM parser for all architectures yet. 476 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt) 477 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser) 478 endif () 479 480 # We don't have an disassembler for all architectures yet. 481 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt) 482 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler) 483 endif () 484endif () 485 486if( MSVC ) 487 set(SHLIBEXT ".lib") 488 set(stricmp "_stricmp") 489 set(strdup "_strdup") 490 491 # See if the DIA SDK is available and usable. 492 set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK" CACHE PATH 493 "Path to the DIA SDK") 494 495 # Due to a bug in MSVC 2013's installation software, it is possible 496 # for MSVC 2013 to write the DIA SDK into the Visual Studio 2012 497 # install directory. If this happens, the installation is corrupt 498 # and there's nothing we can do. It happens with enough frequency 499 # though that we should handle it. We do so by simply checking that 500 # the DIA SDK folder exists. Should this happen you will need to 501 # uninstall VS 2012 and then re-install VS 2013. 502 if (IS_DIRECTORY "${MSVC_DIA_SDK_DIR}") 503 set(HAVE_DIA_SDK 1) 504 else() 505 set(HAVE_DIA_SDK 0) 506 endif() 507 508 option(LLVM_ENABLE_DIA_SDK "Use MSVC DIA SDK for debugging if available." 509 ${HAVE_DIA_SDK}) 510 511 if(LLVM_ENABLE_DIA_SDK AND NOT HAVE_DIA_SDK) 512 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.") 513 endif() 514else() 515 set(LLVM_ENABLE_DIA_SDK 0) 516endif( MSVC ) 517 518# FIXME: Signal handler return type, currently hardcoded to 'void' 519set(RETSIGTYPE void) 520 521if( LLVM_ENABLE_THREADS ) 522 # Check if threading primitives aren't supported on this platform 523 if( NOT HAVE_PTHREAD_H AND NOT WIN32 ) 524 set(LLVM_ENABLE_THREADS 0) 525 endif() 526endif() 527 528if( LLVM_ENABLE_THREADS ) 529 message(STATUS "Threads enabled.") 530else( LLVM_ENABLE_THREADS ) 531 message(STATUS "Threads disabled.") 532endif() 533 534if (LLVM_ENABLE_DOXYGEN) 535 message(STATUS "Doxygen enabled.") 536 find_package(Doxygen REQUIRED) 537 538 if (DOXYGEN_FOUND) 539 # If we find doxygen and we want to enable doxygen by default create a 540 # global aggregate doxygen target for generating llvm and any/all 541 # subprojects doxygen documentation. 542 if (LLVM_BUILD_DOCS) 543 add_custom_target(doxygen ALL) 544 endif() 545 546 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF) 547 if (LLVM_DOXYGEN_EXTERNAL_SEARCH) 548 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external search.") 549 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings") 550 endif() 551 endif() 552else() 553 message(STATUS "Doxygen disabled.") 554endif() 555 556set(LLVM_BINDINGS "") 557find_program(GO_EXECUTABLE NAMES go DOC "go executable") 558if(WIN32 OR NOT LLVM_ENABLE_BINDINGS) 559 message(STATUS "Go bindings disabled.") 560else() 561 if(GO_EXECUTABLE STREQUAL "GO_EXECUTABLE-NOTFOUND") 562 message(STATUS "Go bindings disabled.") 563 else() 564 execute_process(COMMAND ${GO_EXECUTABLE} run ${PROJECT_SOURCE_DIR}/bindings/go/conftest.go 565 RESULT_VARIABLE GO_CONFTEST) 566 if(GO_CONFTEST STREQUAL "0") 567 set(LLVM_BINDINGS "${LLVM_BINDINGS} go") 568 message(STATUS "Go bindings enabled.") 569 else() 570 message(STATUS "Go bindings disabled, need at least Go 1.2.") 571 endif() 572 endif() 573endif() 574 575find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold ${LLVM_DEFAULT_TARGET_TRIPLE}-ld ld DOC "The gold linker") 576set(LLVM_BINUTILS_INCDIR "" CACHE PATH 577 "PATH to binutils/include containing plugin-api.h for gold plugin.") 578 579if(CMAKE_GENERATOR STREQUAL "Ninja") 580 execute_process(COMMAND ${CMAKE_MAKE_PROGRAM} --version 581 OUTPUT_VARIABLE NINJA_VERSION 582 OUTPUT_STRIP_TRAILING_WHITESPACE) 583 set(NINJA_VERSION ${NINJA_VERSION} CACHE STRING "Ninja version number" FORCE) 584 message(STATUS "Ninja version: ${NINJA_VERSION}") 585endif() 586 587if(CMAKE_GENERATOR STREQUAL "Ninja" AND 588 NOT "${NINJA_VERSION}" VERSION_LESS "1.9.0" AND 589 CMAKE_HOST_APPLE AND CMAKE_HOST_SYSTEM_VERSION VERSION_GREATER "15.6.0") 590 set(LLVM_TOUCH_STATIC_LIBRARIES ON) 591endif() 592 593if(CMAKE_HOST_APPLE AND APPLE) 594 if(NOT CMAKE_XCRUN) 595 find_program(CMAKE_XCRUN NAMES xcrun) 596 endif() 597 if(CMAKE_XCRUN) 598 execute_process(COMMAND ${CMAKE_XCRUN} -find ld 599 OUTPUT_VARIABLE LD64_EXECUTABLE 600 OUTPUT_STRIP_TRAILING_WHITESPACE) 601 else() 602 find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker") 603 endif() 604 605 if(LD64_EXECUTABLE) 606 set(LD64_EXECUTABLE ${LD64_EXECUTABLE} CACHE PATH "ld64 executable") 607 message(STATUS "Found ld64 - ${LD64_EXECUTABLE}") 608 endif() 609endif() 610 611# Keep the version requirements in sync with bindings/ocaml/README.txt. 612include(FindOCaml) 613include(AddOCaml) 614if(WIN32 OR NOT LLVM_ENABLE_BINDINGS) 615 message(STATUS "OCaml bindings disabled.") 616else() 617 find_package(OCaml) 618 if( NOT OCAML_FOUND ) 619 message(STATUS "OCaml bindings disabled.") 620 else() 621 if( OCAML_VERSION VERSION_LESS "4.00.0" ) 622 message(STATUS "OCaml bindings disabled, need OCaml >=4.00.0.") 623 else() 624 find_ocamlfind_package(ctypes VERSION 0.4 OPTIONAL) 625 if( HAVE_OCAML_CTYPES ) 626 message(STATUS "OCaml bindings enabled.") 627 find_ocamlfind_package(oUnit VERSION 2 OPTIONAL) 628 set(LLVM_BINDINGS "${LLVM_BINDINGS} ocaml") 629 630 set(LLVM_OCAML_INSTALL_PATH "${OCAML_STDLIB_PATH}" CACHE STRING 631 "Install directory for LLVM OCaml packages") 632 else() 633 message(STATUS "OCaml bindings disabled, need ctypes >=0.4.") 634 endif() 635 endif() 636 endif() 637endif() 638 639string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}") 640 641function(find_python_module module) 642 string(REPLACE "." "_" module_name ${module}) 643 string(TOUPPER ${module_name} module_upper) 644 set(FOUND_VAR PY_${module_upper}_FOUND) 645 if (DEFINED ${FOUND_VAR}) 646 return() 647 endif() 648 649 execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import ${module}" 650 RESULT_VARIABLE status 651 ERROR_QUIET) 652 653 if(status) 654 set(${FOUND_VAR} OFF CACHE BOOL "Failed to find python module '${module}'") 655 message(STATUS "Could NOT find Python module ${module}") 656 else() 657 set(${FOUND_VAR} ON CACHE BOOL "Found python module '${module}'") 658 message(STATUS "Found Python module ${module}") 659 endif() 660endfunction() 661 662set (PYTHON_MODULES 663 pygments 664 # Some systems still don't have pygments.lexers.c_cpp which was introduced in 665 # version 2.0 in 2014... 666 pygments.lexers.c_cpp 667 yaml 668 ) 669foreach(module ${PYTHON_MODULES}) 670 find_python_module(${module}) 671endforeach() 672 673if(PY_PYGMENTS_FOUND AND PY_PYGMENTS_LEXERS_C_CPP_FOUND AND PY_YAML_FOUND) 674 set (LLVM_HAVE_OPT_VIEWER_MODULES 1) 675else() 676 set (LLVM_HAVE_OPT_VIEWER_MODULES 0) 677endif() 678