1# Returns the host triple. 2# Invokes config.guess 3 4function( get_host_triple var ) 5 if( MSVC OR CMAKE_CXX_SIMULATE_ID STREQUAL "MSVC") 6 if( CMAKE_C_COMPILER_ARCHITECTURE_ID MATCHES "ARM64.*" ) 7 set( value "aarch64-pc-windows-msvc" ) 8 elseif( CMAKE_C_COMPILER_ARCHITECTURE_ID MATCHES "ARM.*" ) 9 set( value "armv7-pc-windows-msvc" ) 10 elseif( CMAKE_C_COMPILER_ARCHITECTURE_ID STREQUAL "x64" ) 11 set( value "x86_64-pc-windows-msvc" ) 12 elseif( CMAKE_C_COMPILER_ARCHITECTURE_ID STREQUAL "X86" ) 13 set( value "i686-pc-windows-msvc" ) 14 elseif( CMAKE_SIZEOF_VOID_P EQUAL 8 ) 15 set( value "x86_64-pc-windows-msvc" ) 16 else() 17 set( value "i686-pc-windows-msvc" ) 18 endif() 19 elseif( MINGW AND NOT MSYS ) 20 # CMake doesn't provide COMPILER_ARCHITECTURE_ID for Clang/GCC, 21 # but it does for MSVC. 22 if( CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "ARM.*" ) 23 if( CMAKE_SIZEOF_VOID_P EQUAL 8 ) 24 set( value "aarch64-w64-windows-gnu" ) 25 else() 26 set( value "armv7-w64-windows-gnu" ) 27 endif() 28 else() 29 if( CMAKE_SIZEOF_VOID_P EQUAL 8 ) 30 set( value "x86_64-w64-windows-gnu" ) 31 else() 32 set( value "i686-w64-windows-gnu" ) 33 endif() 34 endif() 35 elseif( CMAKE_SYSTEM_NAME MATCHES "OS390" ) 36 set( value "s390x-ibm-zos" ) 37 elseif( CMAKE_SYSTEM_NAME STREQUAL AIX ) 38 # We defer to dynamic detection of the host AIX version. 39 if( CMAKE_SIZEOF_VOID_P EQUAL 8 ) 40 set( value "powerpc64-ibm-aix" ) 41 else() 42 set( value "powerpc-ibm-aix" ) 43 endif() 44 else() 45 if(CMAKE_HOST_SYSTEM_NAME STREQUAL Windows AND NOT MSYS) 46 message(WARNING "unable to determine host target triple") 47 else() 48 set(config_guess ${LLVM_MAIN_SRC_DIR}/cmake/config.guess) 49 execute_process(COMMAND sh ${config_guess} 50 RESULT_VARIABLE TT_RV 51 OUTPUT_VARIABLE TT_OUT 52 OUTPUT_STRIP_TRAILING_WHITESPACE) 53 if( NOT TT_RV EQUAL 0 ) 54 message(FATAL_ERROR "Failed to execute ${config_guess}") 55 endif( NOT TT_RV EQUAL 0 ) 56 set( value ${TT_OUT} ) 57 endif() 58 endif() 59 set( ${var} ${value} PARENT_SCOPE ) 60endfunction( get_host_triple var ) 61