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(CheckCXXSymbolExists) 10include(CheckFunctionExists) 11include(CheckStructHasMember) 12include(CheckCCompilerFlag) 13include(CMakePushCheckState) 14 15include(CheckCompilerVersion) 16include(CheckProblematicConfigurations) 17include(HandleLLVMStdlib) 18 19if( UNIX AND NOT (APPLE OR BEOS OR HAIKU) ) 20 # Used by check_symbol_exists: 21 list(APPEND CMAKE_REQUIRED_LIBRARIES "m") 22endif() 23# x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly. 24if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND 25 CMAKE_SIZEOF_VOID_P EQUAL 8 ) 26 list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt") 27endif() 28 29# Do checks with _XOPEN_SOURCE and large-file API on AIX, because we will build 30# with those too. 31if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX") 32 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_XOPEN_SOURCE=700") 33 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_LARGE_FILE_API") 34endif() 35 36# Do checks with _FILE_OFFSET_BITS=64 on Solaris, because we will build 37# with those too. 38if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "SunOS") 39 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64") 40endif() 41 42# include checks 43check_include_file(dlfcn.h HAVE_DLFCN_H) 44check_include_file(errno.h HAVE_ERRNO_H) 45check_include_file(fcntl.h HAVE_FCNTL_H) 46check_include_file(link.h HAVE_LINK_H) 47check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H) 48if( NOT PURE_WINDOWS ) 49 check_include_file(pthread.h HAVE_PTHREAD_H) 50endif() 51check_include_file(signal.h HAVE_SIGNAL_H) 52check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H) 53check_include_file(sys/mman.h HAVE_SYS_MMAN_H) 54check_include_file(sys/param.h HAVE_SYS_PARAM_H) 55check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) 56check_include_file(sys/stat.h HAVE_SYS_STAT_H) 57check_include_file(sys/time.h HAVE_SYS_TIME_H) 58check_include_file(sys/types.h HAVE_SYS_TYPES_H) 59check_include_file(sysexits.h HAVE_SYSEXITS_H) 60check_include_file(termios.h HAVE_TERMIOS_H) 61check_include_file(unistd.h HAVE_UNISTD_H) 62check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H) 63check_include_file(fenv.h HAVE_FENV_H) 64check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT) 65check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT) 66 67check_include_file(mach/mach.h HAVE_MACH_MACH_H) 68check_include_file(CrashReporterClient.h HAVE_CRASHREPORTERCLIENT_H) 69if(APPLE) 70 include(CheckCSourceCompiles) 71 CHECK_C_SOURCE_COMPILES(" 72 static const char *__crashreporter_info__ = 0; 73 asm(\".desc ___crashreporter_info__, 0x10\"); 74 int main(void) { return 0; }" 75 HAVE_CRASHREPORTER_INFO) 76endif() 77 78if(${CMAKE_SYSTEM_NAME} STREQUAL "Linux") 79 check_include_file(linux/magic.h HAVE_LINUX_MAGIC_H) 80 if(NOT HAVE_LINUX_MAGIC_H) 81 # older kernels use split files 82 check_include_file(linux/nfs_fs.h HAVE_LINUX_NFS_FS_H) 83 check_include_file(linux/smb.h HAVE_LINUX_SMB_H) 84 endif() 85endif() 86 87# library checks 88if( NOT PURE_WINDOWS ) 89 check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD) 90 if (HAVE_LIBPTHREAD) 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_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) 98 check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) 99 endif() 100 endif() 101 check_library_exists(dl dlopen "" HAVE_LIBDL) 102 check_library_exists(rt clock_gettime "" HAVE_LIBRT) 103endif() 104 105# Check for libpfm. 106include(FindLibpfm) 107 108if(HAVE_LIBPTHREAD) 109 # We want to find pthreads library and at the moment we do want to 110 # have it reported as '-l<lib>' instead of '-pthread'. 111 # TODO: switch to -pthread once the rest of the build system can deal with it. 112 set(CMAKE_THREAD_PREFER_PTHREAD TRUE) 113 set(THREADS_HAVE_PTHREAD_ARG Off) 114 find_package(Threads REQUIRED) 115 set(LLVM_PTHREAD_LIB ${CMAKE_THREAD_LIBS_INIT}) 116endif() 117 118if(LLVM_ENABLE_ZLIB) 119 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON) 120 find_package(ZLIB REQUIRED) 121 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 122 find_package(ZLIB) 123 endif() 124 if(ZLIB_FOUND) 125 # Check if zlib we found is usable; for example, we may have found a 32-bit 126 # library on a 64-bit system which would result in a link-time failure. 127 cmake_push_check_state() 128 list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS}) 129 list(APPEND CMAKE_REQUIRED_LIBRARIES ${ZLIB_LIBRARY}) 130 check_symbol_exists(compress2 zlib.h HAVE_ZLIB) 131 cmake_pop_check_state() 132 if(LLVM_ENABLE_ZLIB STREQUAL FORCE_ON AND NOT HAVE_ZLIB) 133 message(FATAL_ERROR "Failed to configure zlib") 134 endif() 135 endif() 136 set(LLVM_ENABLE_ZLIB "${HAVE_ZLIB}") 137else() 138 set(LLVM_ENABLE_ZLIB 0) 139endif() 140 141set(zstd_FOUND 0) 142if(LLVM_ENABLE_ZSTD) 143 if(LLVM_ENABLE_ZSTD STREQUAL FORCE_ON) 144 find_package(zstd REQUIRED) 145 if(NOT zstd_FOUND) 146 message(FATAL_ERROR "Failed to configure zstd, but LLVM_ENABLE_ZSTD is FORCE_ON") 147 endif() 148 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 149 find_package(zstd QUIET) 150 endif() 151endif() 152set(LLVM_ENABLE_ZSTD ${zstd_FOUND}) 153 154if(LLVM_ENABLE_LIBXML2) 155 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON) 156 find_package(LibXml2 REQUIRED) 157 elseif(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 158 find_package(LibXml2) 159 endif() 160 if(LibXml2_FOUND) 161 # Check if libxml2 we found is usable; for example, we may have found a 32-bit 162 # library on a 64-bit system which would result in a link-time failure. 163 cmake_push_check_state() 164 list(APPEND CMAKE_REQUIRED_INCLUDES ${LIBXML2_INCLUDE_DIRS}) 165 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBXML2_LIBRARIES}) 166 list(APPEND CMAKE_REQUIRED_DEFINITIONS ${LIBXML2_DEFINITIONS}) 167 check_symbol_exists(xmlReadMemory libxml/xmlreader.h HAVE_LIBXML2) 168 cmake_pop_check_state() 169 if(LLVM_ENABLE_LIBXML2 STREQUAL FORCE_ON AND NOT HAVE_LIBXML2) 170 message(FATAL_ERROR "Failed to configure libxml2") 171 endif() 172 endif() 173 set(LLVM_ENABLE_LIBXML2 "${HAVE_LIBXML2}") 174endif() 175 176if(LLVM_ENABLE_CURL) 177 if(LLVM_ENABLE_CURL STREQUAL FORCE_ON) 178 find_package(CURL REQUIRED) 179 else() 180 find_package(CURL) 181 endif() 182 if(CURL_FOUND) 183 # Check if curl we found is usable; for example, we may have found a 32-bit 184 # library on a 64-bit system which would result in a link-time failure. 185 cmake_push_check_state() 186 list(APPEND CMAKE_REQUIRED_LIBRARIES CURL::libcurl) 187 check_symbol_exists(curl_easy_init curl/curl.h HAVE_CURL) 188 cmake_pop_check_state() 189 if(LLVM_ENABLE_CURL STREQUAL FORCE_ON AND NOT HAVE_CURL) 190 message(FATAL_ERROR "Failed to configure curl") 191 endif() 192 endif() 193 set(LLVM_ENABLE_CURL "${HAVE_CURL}") 194endif() 195 196if(LLVM_ENABLE_HTTPLIB) 197 if(LLVM_ENABLE_HTTPLIB STREQUAL FORCE_ON) 198 find_package(httplib REQUIRED) 199 else() 200 find_package(httplib) 201 endif() 202 if(HTTPLIB_FOUND) 203 # Check if the "httplib" we found is usable; for example there may be another 204 # library with the same name. 205 cmake_push_check_state() 206 list(APPEND CMAKE_REQUIRED_LIBRARIES ${HTTPLIB_LIBRARY}) 207 check_cxx_symbol_exists(CPPHTTPLIB_HTTPLIB_H ${HTTPLIB_HEADER_PATH} HAVE_HTTPLIB) 208 cmake_pop_check_state() 209 if(LLVM_ENABLE_HTTPLIB STREQUAL FORCE_ON AND NOT HAVE_HTTPLIB) 210 message(FATAL_ERROR "Failed to configure cpp-httplib") 211 endif() 212 endif() 213 set(LLVM_ENABLE_HTTPLIB "${HAVE_HTTPLIB}") 214endif() 215 216# Don't look for these libraries if we're using MSan, since uninstrumented third 217# party code may call MSan interceptors like strlen, leading to false positives. 218if(NOT LLVM_USE_SANITIZER MATCHES "Memory.*") 219 # Don't look for these libraries on Windows. 220 if (NOT PURE_WINDOWS) 221 # Skip libedit if using ASan as it contains memory leaks. 222 if (LLVM_ENABLE_LIBEDIT AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*") 223 find_package(LibEdit) 224 set(HAVE_LIBEDIT ${LibEdit_FOUND}) 225 else() 226 set(HAVE_LIBEDIT 0) 227 endif() 228 if(LLVM_ENABLE_TERMINFO) 229 if(LLVM_ENABLE_TERMINFO STREQUAL FORCE_ON) 230 find_package(Terminfo REQUIRED) 231 else() 232 find_package(Terminfo) 233 endif() 234 set(LLVM_ENABLE_TERMINFO "${Terminfo_FOUND}") 235 endif() 236 else() 237 set(LLVM_ENABLE_TERMINFO 0) 238 endif() 239else() 240 set(LLVM_ENABLE_TERMINFO 0) 241endif() 242 243check_library_exists(xar xar_open "" LLVM_HAVE_LIBXAR) 244if(LLVM_HAVE_LIBXAR) 245 message(STATUS "The xar file format has been deprecated: LLVM_HAVE_LIBXAR might be removed in the future.") 246 # The xar file format has been deprecated since macOS 12.0. 247 if (CMAKE_OSX_DEPLOYMENT_TARGET VERSION_GREATER_EQUAL 12) 248 set(LLVM_HAVE_LIBXAR 0) 249 else() 250 set(XAR_LIB xar) 251 endif() 252endif() 253 254# function checks 255check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM) 256find_package(Backtrace) 257set(HAVE_BACKTRACE ${Backtrace_FOUND}) 258set(BACKTRACE_HEADER ${Backtrace_HEADER}) 259 260# Prevent check_symbol_exists from using API that is not supported for a given 261# deployment target. 262check_c_compiler_flag("-Werror=unguarded-availability-new" "C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW") 263if(C_SUPPORTS_WERROR_UNGUARDED_AVAILABILITY_NEW) 264 set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror=unguarded-availability-new") 265endif() 266 267# Determine whether we can register EH tables. 268check_symbol_exists(__register_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_REGISTER_FRAME) 269check_symbol_exists(__deregister_frame "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_DEREGISTER_FRAME) 270check_symbol_exists(__unw_add_dynamic_fde "${CMAKE_CURRENT_LIST_DIR}/unwind.h" HAVE_UNW_ADD_DYNAMIC_FDE) 271 272check_symbol_exists(_Unwind_Backtrace "unwind.h" HAVE__UNWIND_BACKTRACE) 273check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE) 274check_symbol_exists(sysconf unistd.h HAVE_SYSCONF) 275check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE) 276check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT) 277check_symbol_exists(isatty unistd.h HAVE_ISATTY) 278check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) 279check_symbol_exists(futimes sys/time.h HAVE_FUTIMES) 280# AddressSanitizer conflicts with lib/Support/Unix/Signals.inc 281# Avoid sigaltstack on Apple platforms, where backtrace() cannot handle it 282# (rdar://7089625) and _Unwind_Backtrace is unusable because it cannot unwind 283# past the signal handler after an assertion failure (rdar://29866587). 284if( HAVE_SIGNAL_H AND NOT LLVM_USE_SANITIZER MATCHES ".*Address.*" AND NOT APPLE ) 285 check_symbol_exists(sigaltstack signal.h HAVE_SIGALTSTACK) 286endif() 287set(CMAKE_REQUIRED_DEFINITIONS "-D_LARGEFILE64_SOURCE") 288check_symbol_exists(lseek64 "sys/types.h;unistd.h" HAVE_LSEEK64) 289set(CMAKE_REQUIRED_DEFINITIONS "") 290check_symbol_exists(mallctl malloc_np.h HAVE_MALLCTL) 291check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO) 292check_symbol_exists(mallinfo2 malloc.h HAVE_MALLINFO2) 293check_symbol_exists(malloc_zone_statistics malloc/malloc.h 294 HAVE_MALLOC_ZONE_STATISTICS) 295check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT) 296check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN) 297check_symbol_exists(pread unistd.h HAVE_PREAD) 298check_symbol_exists(sbrk unistd.h HAVE_SBRK) 299check_symbol_exists(strerror string.h HAVE_STRERROR) 300check_symbol_exists(strerror_r string.h HAVE_STRERROR_R) 301check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S) 302check_symbol_exists(setenv stdlib.h HAVE_SETENV) 303if( PURE_WINDOWS ) 304 check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S) 305 306 check_function_exists(_alloca HAVE__ALLOCA) 307 check_function_exists(__alloca HAVE___ALLOCA) 308 check_function_exists(__chkstk HAVE___CHKSTK) 309 check_function_exists(__chkstk_ms HAVE___CHKSTK_MS) 310 check_function_exists(___chkstk HAVE____CHKSTK) 311 check_function_exists(___chkstk_ms HAVE____CHKSTK_MS) 312 313 check_function_exists(__ashldi3 HAVE___ASHLDI3) 314 check_function_exists(__ashrdi3 HAVE___ASHRDI3) 315 check_function_exists(__divdi3 HAVE___DIVDI3) 316 check_function_exists(__fixdfdi HAVE___FIXDFDI) 317 check_function_exists(__fixsfdi HAVE___FIXSFDI) 318 check_function_exists(__floatdidf HAVE___FLOATDIDF) 319 check_function_exists(__lshrdi3 HAVE___LSHRDI3) 320 check_function_exists(__moddi3 HAVE___MODDI3) 321 check_function_exists(__udivdi3 HAVE___UDIVDI3) 322 check_function_exists(__umoddi3 HAVE___UMODDI3) 323 324 check_function_exists(__main HAVE___MAIN) 325 check_function_exists(__cmpdi2 HAVE___CMPDI2) 326endif() 327if( HAVE_DLFCN_H ) 328 if( HAVE_LIBDL ) 329 list(APPEND CMAKE_REQUIRED_LIBRARIES dl) 330 endif() 331 check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN) 332 check_symbol_exists(dladdr dlfcn.h HAVE_DLADDR) 333 if( HAVE_LIBDL ) 334 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl) 335 endif() 336endif() 337 338CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec 339 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC) 340if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX") 341# The st_mtim.tv_nsec member of a `stat` structure is not reliable on some AIX 342# environments. 343 set(HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC 0) 344else() 345 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec 346 "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC) 347endif() 348 349check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC) 350if( LLVM_USING_GLIBC ) 351 add_definitions( -D_GNU_SOURCE ) 352 list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE") 353endif() 354# This check requires _GNU_SOURCE 355if (NOT PURE_WINDOWS) 356 if (LLVM_PTHREAD_LIB) 357 list(APPEND CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB}) 358 endif() 359 check_symbol_exists(pthread_getname_np pthread.h HAVE_PTHREAD_GETNAME_NP) 360 check_symbol_exists(pthread_setname_np pthread.h HAVE_PTHREAD_SETNAME_NP) 361 if (LLVM_PTHREAD_LIB) 362 list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${LLVM_PTHREAD_LIB}) 363 endif() 364endif() 365 366# available programs checks 367function(llvm_find_program name) 368 string(TOUPPER ${name} NAME) 369 string(REGEX REPLACE "\\." "_" NAME ${NAME}) 370 371 find_program(LLVM_PATH_${NAME} NAMES ${ARGV}) 372 mark_as_advanced(LLVM_PATH_${NAME}) 373 if(LLVM_PATH_${NAME}) 374 set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?") 375 mark_as_advanced(HAVE_${NAME}) 376 else(LLVM_PATH_${NAME}) 377 set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?") 378 endif(LLVM_PATH_${NAME}) 379endfunction() 380 381if (LLVM_ENABLE_DOXYGEN) 382 llvm_find_program(dot) 383endif () 384 385if(LLVM_ENABLE_FFI) 386 set(FFI_REQUIRE_INCLUDE On) 387 if(LLVM_ENABLE_FFI STREQUAL FORCE_ON) 388 find_package(FFI REQUIRED) 389 else() 390 find_package(FFI) 391 endif() 392 set(LLVM_ENABLE_FFI "${FFI_FOUND}") 393else() 394 unset(HAVE_FFI_FFI_H CACHE) 395 unset(HAVE_FFI_H CACHE) 396 unset(HAVE_FFI_CALL CACHE) 397endif() 398 399check_symbol_exists(proc_pid_rusage "libproc.h" HAVE_PROC_PID_RUSAGE) 400 401# Whether we can use std::is_trivially_copyable to verify llvm::is_trivially_copyable. 402CHECK_CXX_SOURCE_COMPILES(" 403#include <type_traits> 404struct T { int val; }; 405static_assert(std::is_trivially_copyable<T>::value, \"ok\"); 406int main() { return 0;} 407" HAVE_STD_IS_TRIVIALLY_COPYABLE) 408 409 410# Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported. 411include(CheckAtomic) 412 413if( LLVM_ENABLE_PIC ) 414 set(ENABLE_PIC 1) 415else() 416 set(ENABLE_PIC 0) 417 check_cxx_compiler_flag("-fno-pie" SUPPORTS_NO_PIE_FLAG) 418 if(SUPPORTS_NO_PIE_FLAG) 419 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fno-pie") 420 endif() 421endif() 422 423check_cxx_compiler_flag("-Wvariadic-macros" SUPPORTS_VARIADIC_MACROS_FLAG) 424check_cxx_compiler_flag("-Wgnu-zero-variadic-macro-arguments" 425 SUPPORTS_GNU_ZERO_VARIADIC_MACRO_ARGUMENTS_FLAG) 426 427set(USE_NO_MAYBE_UNINITIALIZED 0) 428set(USE_NO_UNINITIALIZED 0) 429 430# Disable gcc's potentially uninitialized use analysis as it presents lots of 431# false positives. 432if (CMAKE_COMPILER_IS_GNUCXX) 433 check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED) 434 if (HAS_MAYBE_UNINITIALIZED) 435 set(USE_NO_MAYBE_UNINITIALIZED 1) 436 else() 437 # Only recent versions of gcc make the distinction between -Wuninitialized 438 # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just 439 # turn off all uninitialized use warnings. 440 check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED) 441 set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED}) 442 endif() 443endif() 444 445# By default, we target the host, but this can be overridden at CMake 446# invocation time. 447include(GetHostTriple) 448get_host_triple(LLVM_INFERRED_HOST_TRIPLE) 449 450set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING 451 "Host on which LLVM binaries will run") 452 453# Determine the native architecture. 454string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH) 455if( LLVM_NATIVE_ARCH STREQUAL "host" ) 456 string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE}) 457endif () 458 459if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") 460 set(LLVM_NATIVE_ARCH X86) 461elseif (LLVM_NATIVE_ARCH STREQUAL "x86") 462 set(LLVM_NATIVE_ARCH X86) 463elseif (LLVM_NATIVE_ARCH STREQUAL "amd64") 464 set(LLVM_NATIVE_ARCH X86) 465elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64") 466 set(LLVM_NATIVE_ARCH X86) 467elseif (LLVM_NATIVE_ARCH MATCHES "sparc") 468 set(LLVM_NATIVE_ARCH Sparc) 469elseif (LLVM_NATIVE_ARCH MATCHES "powerpc") 470 set(LLVM_NATIVE_ARCH PowerPC) 471elseif (LLVM_NATIVE_ARCH MATCHES "ppc64le") 472 set(LLVM_NATIVE_ARCH PowerPC) 473elseif (LLVM_NATIVE_ARCH MATCHES "aarch64") 474 set(LLVM_NATIVE_ARCH AArch64) 475elseif (LLVM_NATIVE_ARCH MATCHES "arm64") 476 set(LLVM_NATIVE_ARCH AArch64) 477elseif (LLVM_NATIVE_ARCH MATCHES "arm") 478 set(LLVM_NATIVE_ARCH ARM) 479elseif (LLVM_NATIVE_ARCH MATCHES "avr") 480 set(LLVM_NATIVE_ARCH AVR) 481elseif (LLVM_NATIVE_ARCH MATCHES "mips") 482 set(LLVM_NATIVE_ARCH Mips) 483elseif (LLVM_NATIVE_ARCH MATCHES "xcore") 484 set(LLVM_NATIVE_ARCH XCore) 485elseif (LLVM_NATIVE_ARCH MATCHES "msp430") 486 set(LLVM_NATIVE_ARCH MSP430) 487elseif (LLVM_NATIVE_ARCH MATCHES "hexagon") 488 set(LLVM_NATIVE_ARCH Hexagon) 489elseif (LLVM_NATIVE_ARCH MATCHES "s390x") 490 set(LLVM_NATIVE_ARCH SystemZ) 491elseif (LLVM_NATIVE_ARCH MATCHES "wasm32") 492 set(LLVM_NATIVE_ARCH WebAssembly) 493elseif (LLVM_NATIVE_ARCH MATCHES "wasm64") 494 set(LLVM_NATIVE_ARCH WebAssembly) 495elseif (LLVM_NATIVE_ARCH MATCHES "riscv32") 496 set(LLVM_NATIVE_ARCH RISCV) 497elseif (LLVM_NATIVE_ARCH MATCHES "riscv64") 498 set(LLVM_NATIVE_ARCH RISCV) 499elseif (LLVM_NATIVE_ARCH STREQUAL "m68k") 500 set(LLVM_NATIVE_ARCH M68k) 501else () 502 message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}") 503endif () 504 505# If build targets includes "host" or "Native", then replace with native architecture. 506foreach (NATIVE_KEYWORD host Native) 507 list(FIND LLVM_TARGETS_TO_BUILD ${NATIVE_KEYWORD} idx) 508 if( NOT idx LESS 0 ) 509 list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx}) 510 list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH}) 511 list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD) 512 endif() 513endforeach() 514 515list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX) 516if (NATIVE_ARCH_IDX EQUAL -1) 517 message(STATUS 518 "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code") 519else () 520 message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}") 521 set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target) 522 set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo) 523 set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC) 524 set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter) 525 526 # We don't have an ASM parser for all architectures yet. 527 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt) 528 set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser) 529 endif () 530 531 # We don't have an disassembler for all architectures yet. 532 if (EXISTS ${PROJECT_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt) 533 set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler) 534 endif () 535endif () 536 537if( MSVC ) 538 set(SHLIBEXT ".lib") 539 set(stricmp "_stricmp") 540 set(strdup "_strdup") 541 542 # Allow setting clang-cl's /winsysroot flag. 543 set(LLVM_WINSYSROOT "" CACHE STRING 544 "If set, argument to clang-cl's /winsysroot") 545 546 if (LLVM_WINSYSROOT) 547 set(MSVC_DIA_SDK_DIR "${LLVM_WINSYSROOT}/DIA SDK" CACHE PATH 548 "Path to the DIA SDK") 549 else() 550 set(MSVC_DIA_SDK_DIR "$ENV{VSINSTALLDIR}DIA SDK" CACHE PATH 551 "Path to the DIA SDK") 552 endif() 553 554 # See if the DIA SDK is available and usable. 555 # Due to a bug in MSVC 2013's installation software, it is possible 556 # for MSVC 2013 to write the DIA SDK into the Visual Studio 2012 557 # install directory. If this happens, the installation is corrupt 558 # and there's nothing we can do. It happens with enough frequency 559 # though that we should handle it. We do so by simply checking that 560 # the DIA SDK folder exists. Should this happen you will need to 561 # uninstall VS 2012 and then re-install VS 2013. 562 if (IS_DIRECTORY "${MSVC_DIA_SDK_DIR}") 563 set(HAVE_DIA_SDK 1) 564 else() 565 set(HAVE_DIA_SDK 0) 566 endif() 567 568 option(LLVM_ENABLE_DIA_SDK "Use MSVC DIA SDK for debugging if available." 569 ${HAVE_DIA_SDK}) 570 571 if(LLVM_ENABLE_DIA_SDK AND NOT HAVE_DIA_SDK) 572 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.") 573 endif() 574else() 575 set(LLVM_ENABLE_DIA_SDK 0) 576endif( MSVC ) 577 578if( LLVM_ENABLE_THREADS ) 579 # Check if threading primitives aren't supported on this platform 580 if( NOT HAVE_PTHREAD_H AND NOT WIN32 ) 581 set(LLVM_ENABLE_THREADS 0) 582 endif() 583endif() 584 585if( LLVM_ENABLE_THREADS ) 586 message(STATUS "Threads enabled.") 587else( LLVM_ENABLE_THREADS ) 588 message(STATUS "Threads disabled.") 589endif() 590 591if (LLVM_ENABLE_DOXYGEN) 592 message(STATUS "Doxygen enabled.") 593 find_package(Doxygen REQUIRED) 594 595 if (DOXYGEN_FOUND) 596 # If we find doxygen and we want to enable doxygen by default create a 597 # global aggregate doxygen target for generating llvm and any/all 598 # subprojects doxygen documentation. 599 if (LLVM_BUILD_DOCS) 600 add_custom_target(doxygen ALL) 601 endif() 602 603 option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF) 604 if (LLVM_DOXYGEN_EXTERNAL_SEARCH) 605 set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external search.") 606 set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings") 607 endif() 608 endif() 609else() 610 message(STATUS "Doxygen disabled.") 611endif() 612 613set(LLVM_BINDINGS "") 614find_program(GO_EXECUTABLE NAMES go DOC "go executable") 615if(WIN32 OR NOT LLVM_ENABLE_BINDINGS) 616 message(STATUS "Go bindings disabled.") 617else() 618 if(GO_EXECUTABLE STREQUAL "GO_EXECUTABLE-NOTFOUND") 619 message(STATUS "Go bindings disabled.") 620 else() 621 execute_process(COMMAND ${GO_EXECUTABLE} run ${PROJECT_SOURCE_DIR}/bindings/go/conftest.go 622 RESULT_VARIABLE GO_CONFTEST) 623 if(GO_CONFTEST STREQUAL "0") 624 set(LLVM_BINDINGS "${LLVM_BINDINGS} go") 625 message(STATUS "Go bindings enabled.") 626 else() 627 message(STATUS "Go bindings disabled, need at least Go 1.2.") 628 endif() 629 endif() 630endif() 631 632find_program(GOLD_EXECUTABLE NAMES ${LLVM_DEFAULT_TARGET_TRIPLE}-ld.gold ld.gold ${LLVM_DEFAULT_TARGET_TRIPLE}-ld ld DOC "The gold linker") 633set(LLVM_BINUTILS_INCDIR "" CACHE PATH 634 "PATH to binutils/include containing plugin-api.h for gold plugin.") 635 636if(CMAKE_GENERATOR MATCHES "Ninja") 637 execute_process(COMMAND ${CMAKE_MAKE_PROGRAM} --version 638 OUTPUT_VARIABLE NINJA_VERSION 639 OUTPUT_STRIP_TRAILING_WHITESPACE) 640 set(NINJA_VERSION ${NINJA_VERSION} CACHE STRING "Ninja version number" FORCE) 641 message(STATUS "Ninja version: ${NINJA_VERSION}") 642endif() 643 644if(CMAKE_GENERATOR MATCHES "Ninja" AND 645 NOT "${NINJA_VERSION}" VERSION_LESS "1.9.0" AND 646 CMAKE_HOST_APPLE AND CMAKE_HOST_SYSTEM_VERSION VERSION_GREATER "15.6.0") 647 set(LLVM_TOUCH_STATIC_LIBRARIES ON) 648endif() 649 650if(CMAKE_HOST_APPLE AND APPLE) 651 if(NOT CMAKE_XCRUN) 652 find_program(CMAKE_XCRUN NAMES xcrun) 653 endif() 654 if(CMAKE_XCRUN) 655 execute_process(COMMAND ${CMAKE_XCRUN} -find ld 656 OUTPUT_VARIABLE LD64_EXECUTABLE 657 OUTPUT_STRIP_TRAILING_WHITESPACE) 658 else() 659 find_program(LD64_EXECUTABLE NAMES ld DOC "The ld64 linker") 660 endif() 661 662 if(LD64_EXECUTABLE) 663 set(LD64_EXECUTABLE ${LD64_EXECUTABLE} CACHE PATH "ld64 executable") 664 message(STATUS "Found ld64 - ${LD64_EXECUTABLE}") 665 endif() 666endif() 667 668# Keep the version requirements in sync with bindings/ocaml/README.txt. 669include(FindOCaml) 670include(AddOCaml) 671if(WIN32 OR NOT LLVM_ENABLE_BINDINGS) 672 message(STATUS "OCaml bindings disabled.") 673else() 674 find_package(OCaml) 675 if( NOT OCAML_FOUND ) 676 message(STATUS "OCaml bindings disabled.") 677 else() 678 if( OCAML_VERSION VERSION_LESS "4.00.0" ) 679 message(STATUS "OCaml bindings disabled, need OCaml >=4.00.0.") 680 else() 681 find_ocamlfind_package(ctypes VERSION 0.4 OPTIONAL) 682 if( HAVE_OCAML_CTYPES ) 683 message(STATUS "OCaml bindings enabled.") 684 set(LLVM_BINDINGS "${LLVM_BINDINGS} ocaml") 685 686 set(LLVM_OCAML_INSTALL_PATH "${OCAML_STDLIB_PATH}" CACHE STRING 687 "Install directory for LLVM OCaml packages") 688 else() 689 message(STATUS "OCaml bindings disabled, need ctypes >=0.4.") 690 endif() 691 endif() 692 endif() 693endif() 694 695string(REPLACE " " ";" LLVM_BINDINGS_LIST "${LLVM_BINDINGS}") 696 697function(find_python_module module) 698 string(REPLACE "." "_" module_name ${module}) 699 string(TOUPPER ${module_name} module_upper) 700 set(FOUND_VAR PY_${module_upper}_FOUND) 701 if (DEFINED ${FOUND_VAR}) 702 return() 703 endif() 704 705 execute_process(COMMAND "${Python3_EXECUTABLE}" "-c" "import ${module}" 706 RESULT_VARIABLE status 707 ERROR_QUIET) 708 709 if(status) 710 set(${FOUND_VAR} OFF CACHE BOOL "Failed to find python module '${module}'") 711 message(STATUS "Could NOT find Python module ${module}") 712 else() 713 set(${FOUND_VAR} ON CACHE BOOL "Found python module '${module}'") 714 message(STATUS "Found Python module ${module}") 715 endif() 716endfunction() 717 718set (PYTHON_MODULES 719 pygments 720 # Some systems still don't have pygments.lexers.c_cpp which was introduced in 721 # version 2.0 in 2014... 722 pygments.lexers.c_cpp 723 yaml 724 ) 725foreach(module ${PYTHON_MODULES}) 726 find_python_module(${module}) 727endforeach() 728 729if(PY_PYGMENTS_FOUND AND PY_PYGMENTS_LEXERS_C_CPP_FOUND AND PY_YAML_FOUND) 730 set (LLVM_HAVE_OPT_VIEWER_MODULES 1) 731else() 732 set (LLVM_HAVE_OPT_VIEWER_MODULES 0) 733endif() 734 735function(llvm_get_host_prefixes_and_suffixes) 736 # Not all platform files will set these variables (relying on them being 737 # implicitly empty if they're unset), so unset the variables before including 738 # the platform file, to prevent any values from the target system leaking. 739 unset(CMAKE_STATIC_LIBRARY_PREFIX) 740 unset(CMAKE_STATIC_LIBRARY_SUFFIX) 741 unset(CMAKE_SHARED_LIBRARY_PREFIX) 742 unset(CMAKE_SHARED_LIBRARY_SUFFIX) 743 unset(CMAKE_IMPORT_LIBRARY_PREFIX) 744 unset(CMAKE_IMPORT_LIBRARY_SUFFIX) 745 unset(CMAKE_EXECUTABLE_SUFFIX) 746 unset(CMAKE_LINK_LIBRARY_SUFFIX) 747 include(Platform/${CMAKE_HOST_SYSTEM_NAME} OPTIONAL RESULT_VARIABLE _includedFile) 748 if (_includedFile) 749 set(LLVM_HOST_STATIC_LIBRARY_PREFIX ${CMAKE_STATIC_LIBRARY_PREFIX} PARENT_SCOPE) 750 set(LLVM_HOST_STATIC_LIBRARY_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX} PARENT_SCOPE) 751 set(LLVM_HOST_SHARED_LIBRARY_PREFIX ${CMAKE_SHARED_LIBRARY_PREFIX} PARENT_SCOPE) 752 set(LLVM_HOST_SHARED_LIBRARY_SUFFIX ${CMAKE_SHARED_LIBRARY_SUFFIX} PARENT_SCOPE) 753 set(LLVM_HOST_IMPORT_LIBRARY_PREFIX ${CMAKE_IMPORT_LIBRARY_PREFIX} PARENT_SCOPE) 754 set(LLVM_HOST_IMPORT_LIBRARY_SUFFIX ${CMAKE_IMPORT_LIBRARY_SUFFIX} PARENT_SCOPE) 755 set(LLVM_HOST_EXECUTABLE_SUFFIX ${CMAKE_EXECUTABLE_SUFFIX} PARENT_SCOPE) 756 set(LLVM_HOST_LINK_LIBRARY_SUFFIX ${CMAKE_LINK_LIBRARY_SUFFIX} PARENT_SCOPE) 757 endif() 758endfunction() 759 760llvm_get_host_prefixes_and_suffixes() 761