if( WIN32 AND NOT CYGWIN ) # We consider Cygwin as another Unix set(PURE_WINDOWS 1) endif() include(CheckIncludeFile) include(CheckIncludeFileCXX) include(CheckLibraryExists) include(CheckSymbolExists) include(CheckFunctionExists) include(CheckCXXSourceCompiles) include(TestBigEndian) include(HandleLLVMStdlib) if( UNIX AND NOT BEOS ) # Used by check_symbol_exists: set(CMAKE_REQUIRED_LIBRARIES m) endif() # x86_64 FreeBSD 9.2 requires libcxxrt to be specified explicitly. if( CMAKE_SYSTEM MATCHES "FreeBSD-9.2-RELEASE" AND CMAKE_SIZEOF_VOID_P EQUAL 8 ) list(APPEND CMAKE_REQUIRED_LIBRARIES "cxxrt") endif() # Helper macros and functions macro(add_cxx_include result files) set(${result} "") foreach (file_name ${files}) set(${result} "${${result}}#include<${file_name}>\n") endforeach() endmacro(add_cxx_include files result) function(check_type_exists type files variable) add_cxx_include(includes "${files}") CHECK_CXX_SOURCE_COMPILES(" ${includes} ${type} typeVar; int main() { return 0; } " ${variable}) endfunction() # include checks check_include_file_cxx(cxxabi.h HAVE_CXXABI_H) check_include_file(dirent.h HAVE_DIRENT_H) check_include_file(dlfcn.h HAVE_DLFCN_H) check_include_file(errno.h HAVE_ERRNO_H) check_include_file(execinfo.h HAVE_EXECINFO_H) check_include_file(fcntl.h HAVE_FCNTL_H) check_include_file(inttypes.h HAVE_INTTYPES_H) check_include_file(limits.h HAVE_LIMITS_H) check_include_file(malloc.h HAVE_MALLOC_H) check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H) check_include_file(ndir.h HAVE_NDIR_H) if( NOT PURE_WINDOWS ) check_include_file(pthread.h HAVE_PTHREAD_H) endif() check_include_file(signal.h HAVE_SIGNAL_H) check_include_file(stdint.h HAVE_STDINT_H) check_include_file(sys/dir.h HAVE_SYS_DIR_H) check_include_file(sys/ioctl.h HAVE_SYS_IOCTL_H) check_include_file(sys/mman.h HAVE_SYS_MMAN_H) check_include_file(sys/ndir.h HAVE_SYS_NDIR_H) check_include_file(sys/param.h HAVE_SYS_PARAM_H) check_include_file(sys/resource.h HAVE_SYS_RESOURCE_H) check_include_file(sys/stat.h HAVE_SYS_STAT_H) check_include_file(sys/time.h HAVE_SYS_TIME_H) check_include_file(sys/uio.h HAVE_SYS_UIO_H) check_include_file(sys/wait.h HAVE_SYS_WAIT_H) check_include_file(termios.h HAVE_TERMIOS_H) check_include_file(unistd.h HAVE_UNISTD_H) check_include_file(utime.h HAVE_UTIME_H) check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H) check_include_file(zlib.h HAVE_ZLIB_H) check_include_file(fenv.h HAVE_FENV_H) check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT) check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT) check_include_file(mach/mach.h HAVE_MACH_MACH_H) check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H) # library checks if( NOT PURE_WINDOWS ) check_library_exists(pthread pthread_create "" HAVE_LIBPTHREAD) if (HAVE_LIBPTHREAD) check_library_exists(pthread pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) check_library_exists(pthread pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) check_library_exists(pthread pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) else() # this could be Android check_library_exists(c pthread_create "" PTHREAD_IN_LIBC) if (PTHREAD_IN_LIBC) check_library_exists(c pthread_getspecific "" HAVE_PTHREAD_GETSPECIFIC) check_library_exists(c pthread_rwlock_init "" HAVE_PTHREAD_RWLOCK_INIT) check_library_exists(c pthread_mutex_lock "" HAVE_PTHREAD_MUTEX_LOCK) endif() endif() check_library_exists(dl dlopen "" HAVE_LIBDL) check_library_exists(rt clock_gettime "" HAVE_LIBRT) if (LLVM_ENABLE_ZLIB) check_library_exists(z compress2 "" HAVE_LIBZ) else() set(HAVE_LIBZ 0) endif() check_library_exists(edit el_init "" HAVE_LIBEDIT) if(LLVM_ENABLE_TERMINFO) set(HAVE_TERMINFO 0) foreach(library tinfo terminfo curses ncurses ncursesw) string(TOUPPER ${library} library_suffix) check_library_exists(${library} setupterm "" HAVE_TERMINFO_${library_suffix}) if(HAVE_TERMINFO_${library_suffix}) set(HAVE_TERMINFO 1) set(TERMINFO_LIBS "${library}") break() endif() endforeach() else() set(HAVE_TERMINFO 0) endif() endif() # function checks check_symbol_exists(arc4random "stdlib.h" HAVE_DECL_ARC4RANDOM) check_symbol_exists(backtrace "execinfo.h" HAVE_BACKTRACE) check_symbol_exists(getpagesize unistd.h HAVE_GETPAGESIZE) check_symbol_exists(getrusage sys/resource.h HAVE_GETRUSAGE) check_symbol_exists(setrlimit sys/resource.h HAVE_SETRLIMIT) check_symbol_exists(isatty unistd.h HAVE_ISATTY) check_symbol_exists(isinf cmath HAVE_ISINF_IN_CMATH) check_symbol_exists(isinf math.h HAVE_ISINF_IN_MATH_H) check_symbol_exists(finite ieeefp.h HAVE_FINITE_IN_IEEEFP_H) check_symbol_exists(isnan cmath HAVE_ISNAN_IN_CMATH) check_symbol_exists(isnan math.h HAVE_ISNAN_IN_MATH_H) check_symbol_exists(ceilf math.h HAVE_CEILF) check_symbol_exists(floorf math.h HAVE_FLOORF) check_symbol_exists(fmodf math.h HAVE_FMODF) check_symbol_exists(log math.h HAVE_LOG) check_symbol_exists(log2 math.h HAVE_LOG2) check_symbol_exists(log10 math.h HAVE_LOG10) check_symbol_exists(exp math.h HAVE_EXP) check_symbol_exists(exp2 math.h HAVE_EXP2) check_symbol_exists(exp10 math.h HAVE_EXP10) check_symbol_exists(futimens sys/stat.h HAVE_FUTIMENS) check_symbol_exists(futimes sys/time.h HAVE_FUTIMES) if( HAVE_SETJMP_H ) check_symbol_exists(longjmp setjmp.h HAVE_LONGJMP) check_symbol_exists(setjmp setjmp.h HAVE_SETJMP) check_symbol_exists(siglongjmp setjmp.h HAVE_SIGLONGJMP) check_symbol_exists(sigsetjmp setjmp.h HAVE_SIGSETJMP) endif() if( HAVE_SYS_UIO_H ) check_symbol_exists(writev sys/uio.h HAVE_WRITEV) endif() check_symbol_exists(nearbyintf math.h HAVE_NEARBYINTF) check_symbol_exists(mallinfo malloc.h HAVE_MALLINFO) check_symbol_exists(malloc_zone_statistics malloc/malloc.h HAVE_MALLOC_ZONE_STATISTICS) check_symbol_exists(mkdtemp "stdlib.h;unistd.h" HAVE_MKDTEMP) check_symbol_exists(mkstemp "stdlib.h;unistd.h" HAVE_MKSTEMP) check_symbol_exists(mktemp "stdlib.h;unistd.h" HAVE_MKTEMP) check_symbol_exists(closedir "sys/types.h;dirent.h" HAVE_CLOSEDIR) check_symbol_exists(opendir "sys/types.h;dirent.h" HAVE_OPENDIR) check_symbol_exists(readdir "sys/types.h;dirent.h" HAVE_READDIR) check_symbol_exists(getcwd unistd.h HAVE_GETCWD) check_symbol_exists(gettimeofday sys/time.h HAVE_GETTIMEOFDAY) check_symbol_exists(getrlimit "sys/types.h;sys/time.h;sys/resource.h" HAVE_GETRLIMIT) check_symbol_exists(posix_spawn spawn.h HAVE_POSIX_SPAWN) check_symbol_exists(pread unistd.h HAVE_PREAD) check_symbol_exists(realpath stdlib.h HAVE_REALPATH) check_symbol_exists(sbrk unistd.h HAVE_SBRK) check_symbol_exists(srand48 stdlib.h HAVE_RAND48_SRAND48) if( HAVE_RAND48_SRAND48 ) check_symbol_exists(lrand48 stdlib.h HAVE_RAND48_LRAND48) if( HAVE_RAND48_LRAND48 ) check_symbol_exists(drand48 stdlib.h HAVE_RAND48_DRAND48) if( HAVE_RAND48_DRAND48 ) set(HAVE_RAND48 1 CACHE INTERNAL "are srand48/lrand48/drand48 available?") endif() endif() endif() check_symbol_exists(strtoll stdlib.h HAVE_STRTOLL) check_symbol_exists(strtoq stdlib.h HAVE_STRTOQ) check_symbol_exists(strerror string.h HAVE_STRERROR) check_symbol_exists(strerror_r string.h HAVE_STRERROR_R) check_symbol_exists(strerror_s string.h HAVE_DECL_STRERROR_S) check_symbol_exists(setenv stdlib.h HAVE_SETENV) if( PURE_WINDOWS ) check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S) check_function_exists(_alloca HAVE__ALLOCA) check_function_exists(__alloca HAVE___ALLOCA) check_function_exists(__chkstk HAVE___CHKSTK) check_function_exists(___chkstk HAVE____CHKSTK) check_function_exists(__ashldi3 HAVE___ASHLDI3) check_function_exists(__ashrdi3 HAVE___ASHRDI3) check_function_exists(__divdi3 HAVE___DIVDI3) check_function_exists(__fixdfdi HAVE___FIXDFDI) check_function_exists(__fixsfdi HAVE___FIXSFDI) check_function_exists(__floatdidf HAVE___FLOATDIDF) check_function_exists(__lshrdi3 HAVE___LSHRDI3) check_function_exists(__moddi3 HAVE___MODDI3) check_function_exists(__udivdi3 HAVE___UDIVDI3) check_function_exists(__umoddi3 HAVE___UMODDI3) check_function_exists(__main HAVE___MAIN) check_function_exists(__cmpdi2 HAVE___CMPDI2) endif() if( HAVE_DLFCN_H ) if( HAVE_LIBDL ) list(APPEND CMAKE_REQUIRED_LIBRARIES dl) endif() check_symbol_exists(dlerror dlfcn.h HAVE_DLERROR) check_symbol_exists(dlopen dlfcn.h HAVE_DLOPEN) if( HAVE_LIBDL ) list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES dl) endif() endif() check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC) if( LLVM_USING_GLIBC ) add_llvm_definitions( -D_GNU_SOURCE ) endif() set(headers "sys/types.h") if (HAVE_INTTYPES_H) set(headers ${headers} "inttypes.h") endif() if (HAVE_STDINT_H) set(headers ${headers} "stdint.h") endif() check_type_exists(int64_t "${headers}" HAVE_INT64_T) check_type_exists(uint64_t "${headers}" HAVE_UINT64_T) check_type_exists(u_int64_t "${headers}" HAVE_U_INT64_T) # available programs checks function(llvm_find_program name) string(TOUPPER ${name} NAME) string(REGEX REPLACE "\\." "_" NAME ${NAME}) find_program(LLVM_PATH_${NAME} NAMES ${ARGV}) mark_as_advanced(LLVM_PATH_${NAME}) if(LLVM_PATH_${NAME}) set(HAVE_${NAME} 1 CACHE INTERNAL "Is ${name} available ?") mark_as_advanced(HAVE_${NAME}) else(LLVM_PATH_${NAME}) set(HAVE_${NAME} "" CACHE INTERNAL "Is ${name} available ?") endif(LLVM_PATH_${NAME}) endfunction() if (LLVM_ENABLE_DOXYGEN) llvm_find_program(dot) endif () if( LLVM_ENABLE_FFI ) find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR}) if( EXISTS "${FFI_INCLUDE_PATH}/ffi.h" ) set(FFI_HEADER ffi.h CACHE INTERNAL "") set(HAVE_FFI_H 1 CACHE INTERNAL "") else() find_path(FFI_INCLUDE_PATH ffi/ffi.h PATHS ${FFI_INCLUDE_DIR}) if( EXISTS "${FFI_INCLUDE_PATH}/ffi/ffi.h" ) set(FFI_HEADER ffi/ffi.h CACHE INTERNAL "") set(HAVE_FFI_FFI_H 1 CACHE INTERNAL "") endif() endif() if( NOT FFI_HEADER ) message(FATAL_ERROR "libffi includes are not found.") endif() find_library(FFI_LIBRARY_PATH ffi PATHS ${FFI_LIBRARY_DIR}) if( NOT FFI_LIBRARY_PATH ) message(FATAL_ERROR "libffi is not found.") endif() list(APPEND CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) list(APPEND CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) check_symbol_exists(ffi_call ${FFI_HEADER} HAVE_FFI_CALL) list(REMOVE_ITEM CMAKE_REQUIRED_INCLUDES ${FFI_INCLUDE_PATH}) list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${FFI_LIBRARY_PATH}) else() unset(HAVE_FFI_FFI_H CACHE) unset(HAVE_FFI_H CACHE) unset(HAVE_FFI_CALL CACHE) endif( LLVM_ENABLE_FFI ) # Define LLVM_HAS_ATOMICS if gcc or MSVC atomic builtins are supported. include(CheckAtomic) if( LLVM_ENABLE_PIC ) set(ENABLE_PIC 1) else() set(ENABLE_PIC 0) endif() check_cxx_compiler_flag("-Wno-variadic-macros" SUPPORTS_NO_VARIADIC_MACROS_FLAG) set(USE_NO_MAYBE_UNINITIALIZED 0) set(USE_NO_UNINITIALIZED 0) # Disable gcc's potentially uninitialized use analysis as it presents lots of # false positives. if (CMAKE_COMPILER_IS_GNUCXX) check_cxx_compiler_flag("-Wmaybe-uninitialized" HAS_MAYBE_UNINITIALIZED) if (HAS_MAYBE_UNINITIALIZED) set(USE_NO_MAYBE_UNINITIALIZED 1) else() # Only recent versions of gcc make the distinction between -Wuninitialized # and -Wmaybe-uninitialized. If -Wmaybe-uninitialized isn't supported, just # turn off all uninitialized use warnings. check_cxx_compiler_flag("-Wuninitialized" HAS_UNINITIALIZED) set(USE_NO_UNINITIALIZED ${HAS_UNINITIALIZED}) endif() endif() # By default, we target the host, but this can be overridden at CMake # invocation time. include(GetHostTriple) get_host_triple(LLVM_INFERRED_HOST_TRIPLE) set(LLVM_HOST_TRIPLE "${LLVM_INFERRED_HOST_TRIPLE}" CACHE STRING "Host on which LLVM binaries will run") # Determine the native architecture. string(TOLOWER "${LLVM_TARGET_ARCH}" LLVM_NATIVE_ARCH) if( LLVM_NATIVE_ARCH STREQUAL "host" ) string(REGEX MATCH "^[^-]*" LLVM_NATIVE_ARCH ${LLVM_HOST_TRIPLE}) endif () if (LLVM_NATIVE_ARCH MATCHES "i[2-6]86") set(LLVM_NATIVE_ARCH X86) elseif (LLVM_NATIVE_ARCH STREQUAL "x86") set(LLVM_NATIVE_ARCH X86) elseif (LLVM_NATIVE_ARCH STREQUAL "amd64") set(LLVM_NATIVE_ARCH X86) elseif (LLVM_NATIVE_ARCH STREQUAL "x86_64") set(LLVM_NATIVE_ARCH X86) elseif (LLVM_NATIVE_ARCH MATCHES "sparc") set(LLVM_NATIVE_ARCH Sparc) elseif (LLVM_NATIVE_ARCH MATCHES "powerpc") set(LLVM_NATIVE_ARCH PowerPC) elseif (LLVM_NATIVE_ARCH MATCHES "aarch64") set(LLVM_NATIVE_ARCH AArch64) elseif (LLVM_NATIVE_ARCH MATCHES "arm64") set(LLVM_NATIVE_ARCH AArch64) elseif (LLVM_NATIVE_ARCH MATCHES "arm") set(LLVM_NATIVE_ARCH ARM) elseif (LLVM_NATIVE_ARCH MATCHES "mips") set(LLVM_NATIVE_ARCH Mips) elseif (LLVM_NATIVE_ARCH MATCHES "xcore") set(LLVM_NATIVE_ARCH XCore) elseif (LLVM_NATIVE_ARCH MATCHES "msp430") set(LLVM_NATIVE_ARCH MSP430) elseif (LLVM_NATIVE_ARCH MATCHES "hexagon") set(LLVM_NATIVE_ARCH Hexagon) elseif (LLVM_NATIVE_ARCH MATCHES "s390x") set(LLVM_NATIVE_ARCH SystemZ) else () message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}") endif () # If build targets includes "host", then replace with native architecture. list(FIND LLVM_TARGETS_TO_BUILD "host" idx) if( NOT idx LESS 0 ) list(REMOVE_AT LLVM_TARGETS_TO_BUILD ${idx}) list(APPEND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH}) list(REMOVE_DUPLICATES LLVM_TARGETS_TO_BUILD) endif() list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX) if (NATIVE_ARCH_IDX EQUAL -1) message(STATUS "Native target ${LLVM_NATIVE_ARCH} is not selected; lli will not JIT code") else () message(STATUS "Native target architecture is ${LLVM_NATIVE_ARCH}") set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target) set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo) set(LLVM_NATIVE_TARGETMC LLVMInitialize${LLVM_NATIVE_ARCH}TargetMC) set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter) # We don't have an ASM parser for all architectures yet. if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/AsmParser/CMakeLists.txt) set(LLVM_NATIVE_ASMPARSER LLVMInitialize${LLVM_NATIVE_ARCH}AsmParser) endif () # We don't have an disassembler for all architectures yet. if (EXISTS ${CMAKE_SOURCE_DIR}/lib/Target/${LLVM_NATIVE_ARCH}/Disassembler/CMakeLists.txt) set(LLVM_NATIVE_DISASSEMBLER LLVMInitialize${LLVM_NATIVE_ARCH}Disassembler) endif () endif () if( MINGW ) set(HAVE_LIBIMAGEHLP 1) set(HAVE_LIBPSAPI 1) set(HAVE_LIBSHELL32 1) # TODO: Check existence of libraries. # include(CheckLibraryExists) # CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP) endif( MINGW ) if (NOT HAVE_STRTOLL) # Use _strtoi64 if strtoll is not available. check_symbol_exists(_strtoi64 stdlib.h have_strtoi64) if (have_strtoi64) set(HAVE_STRTOLL 1) set(strtoll "_strtoi64") set(strtoull "_strtoui64") endif () endif () if( MSVC ) set(SHLIBEXT ".lib") set(stricmp "_stricmp") set(strdup "_strdup") endif( MSVC ) if( PURE_WINDOWS ) CHECK_CXX_SOURCE_COMPILES(" #include <windows.h> #include <imagehlp.h> extern \"C\" void foo(PENUMLOADED_MODULES_CALLBACK); extern \"C\" void foo(BOOL(CALLBACK*)(PCSTR,ULONG_PTR,ULONG,PVOID)); int main(){return 0;}" HAVE_ELMCB_PCSTR) if( HAVE_ELMCB_PCSTR ) set(WIN32_ELMCB_PCSTR "PCSTR") else() set(WIN32_ELMCB_PCSTR "PSTR") endif() endif( PURE_WINDOWS ) # FIXME: Signal handler return type, currently hardcoded to 'void' set(RETSIGTYPE void) if( LLVM_ENABLE_THREADS ) # Check if threading primitives aren't supported on this platform if( NOT HAVE_PTHREAD_H AND NOT WIN32 ) set(LLVM_ENABLE_THREADS 0) endif() endif() if( LLVM_ENABLE_THREADS ) message(STATUS "Threads enabled.") else( LLVM_ENABLE_THREADS ) message(STATUS "Threads disabled.") endif() if (LLVM_ENABLE_ZLIB ) # Check if zlib is available in the system. if ( NOT HAVE_ZLIB_H OR NOT HAVE_LIBZ ) set(LLVM_ENABLE_ZLIB 0) endif() endif() set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX}) if (LLVM_ENABLE_DOXYGEN) message(STATUS "Doxygen enabled.") find_package(Doxygen REQUIRED) if (DOXYGEN_FOUND) # If we find doxygen and we want to enable doxygen by default create a # global aggregate doxygen target for generating llvm and any/all # subprojects doxygen documentation. if (LLVM_BUILD_DOCS) add_custom_target(doxygen ALL) endif() option(LLVM_DOXYGEN_EXTERNAL_SEARCH "Enable doxygen external search." OFF) if (LLVM_DOXYGEN_EXTERNAL_SEARCH) set(LLVM_DOXYGEN_SEARCHENGINE_URL "" CACHE STRING "URL to use for external searhc.") set(LLVM_DOXYGEN_SEARCH_MAPPINGS "" CACHE STRING "Doxygen Search Mappings") endif() endif() else() message(STATUS "Doxygen disabled.") endif() if (LLVM_ENABLE_SPHINX) message(STATUS "Sphinx enabled.") find_package(Sphinx REQUIRED) if (LLVM_BUILD_DOCS) add_custom_target(sphinx ALL) endif() else() message(STATUS "Sphinx disabled.") endif()