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llvm/cmake/config-ix.cmake
Edwin Vane 4b5dbaa96a Turn off uninitialized-use warnings for gcc in cmake build 
Added support to the cmake build to turn off uninitialized use warnings
for gcc. This cleans the build up somewhat.

Used logic simpler than found in autoconf by making use of the fact that
although gcc won't complain about unsupported -Wno-* flags it *will*
complain about unsupported -W flags.

Reviewers: gribozavr, doug.gregor, chandlerc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174299 91177308-0d34-0410-b5e6-96231b3b80d8
2013-02-04 02:32:44 +00:00

445 lines
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if( WIN32 AND NOT CYGWIN )
# We consider Cygwin as another Unix
set(PURE_WINDOWS 1)
endif()
include(CheckIncludeFile)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckCXXSourceCompiles)
include(TestBigEndian)
if( UNIX AND NOT BEOS )
# Used by check_symbol_exists:
set(CMAKE_REQUIRED_LIBRARIES m)
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(argz.h HAVE_ARGZ_H)
check_include_file(assert.h HAVE_ASSERT_H)
check_include_file(ctype.h HAVE_CTYPE_H)
check_include_file(dirent.h HAVE_DIRENT_H)
check_include_file(dl.h HAVE_DL_H)
check_include_file(dld.h HAVE_DLD_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(link.h HAVE_LINK_H)
check_include_file(malloc.h HAVE_MALLOC_H)
check_include_file(malloc/malloc.h HAVE_MALLOC_MALLOC_H)
check_include_file(memory.h HAVE_MEMORY_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(sanitizer/msan_interface.h HAVE_SANITIZER_MSAN_INTERFACE_H)
check_include_file(setjmp.h HAVE_SETJMP_H)
check_include_file(signal.h HAVE_SIGNAL_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(stdio.h HAVE_STDIO_H)
check_include_file(stdlib.h HAVE_STDLIB_H)
check_include_file(string.h HAVE_STRING_H)
check_include_file(strings.h HAVE_STRINGS_H)
check_include_file(sys/dir.h HAVE_SYS_DIR_H)
check_include_file(sys/dl.h HAVE_SYS_DL_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/types.h HAVE_SYS_TYPES_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(windows.h HAVE_WINDOWS_H)
check_include_file(fenv.h HAVE_FENV_H)
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)
endif()
# function checks
check_symbol_exists(arc4random "stdlib.h" HAVE_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(index strings.h HAVE_INDEX)
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)
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(rindex strings.h HAVE_RINDEX)
check_symbol_exists(strchr string.h HAVE_STRCHR)
check_symbol_exists(strcmp string.h HAVE_STRCMP)
check_symbol_exists(strdup string.h HAVE_STRDUP)
check_symbol_exists(strrchr string.h HAVE_STRRCHR)
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(memcpy string.h HAVE_MEMCPY)
check_symbol_exists(memmove string.h HAVE_MEMMOVE)
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_ARGZ_H )
check_symbol_exists(argz_append argz.h HAVE_ARGZ_APPEND)
check_symbol_exists(argz_create_sep argz.h HAVE_ARGZ_CREATE_SEP)
check_symbol_exists(argz_insert argz.h HAVE_ARGZ_INSERT)
check_symbol_exists(argz_next argz.h HAVE_ARGZ_NEXT)
check_symbol_exists(argz_stringify argz.h HAVE_ARGZ_STRINGIFY)
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 "")
if (HAVE_SYS_TYPES_H)
set(headers ${headers} "sys/types.h")
endif()
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)
check_type_exists(error_t errno.h HAVE_ERROR_T)
# available programs checks
function(llvm_find_program name)
string(TOUPPER ${name} NAME)
string(REGEX REPLACE "\\." "_" NAME ${NAME})
find_program(LLVM_PATH_${NAME} ${name})
mark_as_advanced(LLVM_PATH_${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()
llvm_find_program(gv)
llvm_find_program(circo)
llvm_find_program(twopi)
llvm_find_program(neato)
llvm_find_program(fdp)
llvm_find_program(dot)
llvm_find_program(dotty)
llvm_find_program(xdot.py)
llvm_find_program(Graphviz)
if( LLVM_ENABLE_FFI )
find_path(FFI_INCLUDE_PATH ffi.h PATHS ${FFI_INCLUDE_DIR})
if( FFI_INCLUDE_PATH )
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( FFI_INCLUDE_PATH )
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()
find_package(LibXml2)
if (LIBXML2_FOUND)
set(CLANG_HAVE_LIBXML 1)
endif ()
include(CheckCXXCompilerFlag)
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 ${HAS_UNINITIALIZED})
endif()
endif()
include(GetHostTriple)
get_host_triple(LLVM_HOST_TRIPLE)
# By default, we target the host, but this can be overridden at CMake
# invocation time.
set(LLVM_HOSTTRIPLE "${LLVM_HOST_TRIPLE}")
# 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 "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)
else ()
message(FATAL_ERROR "Unknown architecture ${LLVM_NATIVE_ARCH}")
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)
# TODO: Check existence of libraries.
# include(CheckLibraryExists)
# CHECK_LIBRARY_EXISTS(imagehlp ??? . HAVE_LIBIMAGEHLP)
endif( MINGW )
if( MSVC )
set(error_t int)
set(LTDL_SHLIBPATH_VAR "PATH")
set(LTDL_SYSSEARCHPATH "")
set(LTDL_DLOPEN_DEPLIBS 1)
set(SHLIBEXT ".lib")
set(LTDL_OBJDIR "_libs")
set(HAVE_STRTOLL 1)
set(strtoll "_strtoi64")
set(strtoull "_strtoui64")
set(stricmp "_stricmp")
set(strdup "_strdup")
else( MSVC )
set(LTDL_SHLIBPATH_VAR "LD_LIBRARY_PATH")
set(LTDL_SYSSEARCHPATH "") # TODO
set(LTDL_DLOPEN_DEPLIBS 0) # TODO
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()
set(LLVM_PREFIX ${CMAKE_INSTALL_PREFIX})
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