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a122190509
CMake/Modules/CMakeDetermineCompilerId.cmake
Brad King a122190509 Xcode: Detect CURRENT_ARCH for use by generator 
During compiler identification, extract the Xcode `CURRENT_ARCH` value
and save it for later use by the Xcode generator in an internal compiler
information variable.  This will be useful to know the locations of
object files when only one architecture is built.
2017-03-31 11:26:08 -04:00

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CMake
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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# Function to compile a source file to identify the compiler. This is
# used internally by CMake and should not be included by user code.
# If successful, sets CMAKE_<lang>_COMPILER_ID and CMAKE_<lang>_PLATFORM_ID
function(CMAKE_DETERMINE_COMPILER_ID lang flagvar src)
# Make sure the compiler arguments are clean.
string(STRIP "${CMAKE_${lang}_COMPILER_ARG1}" CMAKE_${lang}_COMPILER_ID_ARG1)
string(REGEX REPLACE " +" ";" CMAKE_${lang}_COMPILER_ID_ARG1 "${CMAKE_${lang}_COMPILER_ID_ARG1}")
# Make sure user-specified compiler flags are used.
if(CMAKE_${lang}_FLAGS)
set(CMAKE_${lang}_COMPILER_ID_FLAGS ${CMAKE_${lang}_FLAGS})
else()
set(CMAKE_${lang}_COMPILER_ID_FLAGS $ENV{${flagvar}})
endif()
string(REPLACE " " ";" CMAKE_${lang}_COMPILER_ID_FLAGS_LIST "${CMAKE_${lang}_COMPILER_ID_FLAGS}")
# Compute the directory in which to run the test.
set(CMAKE_${lang}_COMPILER_ID_DIR ${CMAKE_PLATFORM_INFO_DIR}/CompilerId${lang})
# Try building with no extra flags and then try each set
# of helper flags. Stop when the compiler is identified.
foreach(userflags "${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST}" "")
foreach(testflags ${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS_FIRST}
""
${CMAKE_${lang}_COMPILER_ID_TEST_FLAGS})
CMAKE_DETERMINE_COMPILER_ID_BUILD("${lang}" "${testflags}" "${userflags}" "${src}")
CMAKE_DETERMINE_COMPILER_ID_MATCH_VENDOR("${lang}" "${COMPILER_${lang}_PRODUCED_OUTPUT}")
if(CMAKE_${lang}_COMPILER_ID)
break()
endif()
foreach(file ${COMPILER_${lang}_PRODUCED_FILES})
CMAKE_DETERMINE_COMPILER_ID_CHECK("${lang}" "${CMAKE_${lang}_COMPILER_ID_DIR}/${file}" "${src}")
endforeach()
if(CMAKE_${lang}_COMPILER_ID)
break()
endif()
endforeach()
if(CMAKE_${lang}_COMPILER_ID)
break()
endif()
endforeach()
# If the compiler is still unknown, try to query its vendor.
if(CMAKE_${lang}_COMPILER AND NOT CMAKE_${lang}_COMPILER_ID)
foreach(userflags "${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST}" "")
CMAKE_DETERMINE_COMPILER_ID_VENDOR(${lang} "${userflags}")
endforeach()
endif()
if (COMPILER_QNXNTO AND CMAKE_${lang}_COMPILER_ID STREQUAL "GNU")
execute_process(
COMMAND "${CMAKE_${lang}_COMPILER}"
-V
OUTPUT_VARIABLE output ERROR_VARIABLE output
RESULT_VARIABLE result
TIMEOUT 10
)
if (output MATCHES "targets available")
set(CMAKE_${lang}_COMPILER_ID QCC)
# http://community.qnx.com/sf/discussion/do/listPosts/projects.community/discussion.qnx_momentics_community_support.topc3555?_pagenum=2
# The qcc driver does not itself have a version.
endif()
endif()
# if the format is unknown after all files have been checked, put "Unknown" in the cache
if(NOT CMAKE_EXECUTABLE_FORMAT)
set(CMAKE_EXECUTABLE_FORMAT "Unknown" CACHE INTERNAL "Executable file format")
endif()
if(CMAKE_GENERATOR STREQUAL "Ninja" AND MSVC_${lang}_ARCHITECTURE_ID)
foreach(userflags "${CMAKE_${lang}_COMPILER_ID_FLAGS_LIST}" "")
CMAKE_DETERMINE_MSVC_SHOWINCLUDES_PREFIX(${lang} "${userflags}")
endforeach()
else()
set(CMAKE_${lang}_CL_SHOWINCLUDES_PREFIX "")
endif()
# Display the final identification result.
if(CMAKE_${lang}_COMPILER_ID)
if(CMAKE_${lang}_COMPILER_VERSION)
set(_version " ${CMAKE_${lang}_COMPILER_VERSION}")
else()
set(_version "")
endif()
message(STATUS "The ${lang} compiler identification is "
"${CMAKE_${lang}_COMPILER_ID}${_version}")
else()
message(STATUS "The ${lang} compiler identification is unknown")
endif()
# Check if compiler id detection gave us the compiler tool.
if(CMAKE_${lang}_COMPILER_ID_TOOL)
set(CMAKE_${lang}_COMPILER "${CMAKE_${lang}_COMPILER_ID_TOOL}" PARENT_SCOPE)
elseif(NOT CMAKE_${lang}_COMPILER)
set(CMAKE_${lang}_COMPILER "CMAKE_${lang}_COMPILER-NOTFOUND" PARENT_SCOPE)
endif()
set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE)
set(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
set(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
PARENT_SCOPE)
set(CMAKE_${lang}_XCODE_CURRENT_ARCH "${CMAKE_${lang}_XCODE_CURRENT_ARCH}" PARENT_SCOPE)
set(CMAKE_${lang}_CL_SHOWINCLUDES_PREFIX "${CMAKE_${lang}_CL_SHOWINCLUDES_PREFIX}" PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_WRAPPER "${CMAKE_${lang}_COMPILER_WRAPPER}" PARENT_SCOPE)
set(CMAKE_${lang}_SIMULATE_ID "${CMAKE_${lang}_SIMULATE_ID}" PARENT_SCOPE)
set(CMAKE_${lang}_SIMULATE_VERSION "${CMAKE_${lang}_SIMULATE_VERSION}" PARENT_SCOPE)
set(CMAKE_${lang}_STANDARD_COMPUTED_DEFAULT "${CMAKE_${lang}_STANDARD_COMPUTED_DEFAULT}" PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_PRODUCED_OUTPUT "${COMPILER_${lang}_PRODUCED_OUTPUT}" PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_PRODUCED_FILES "${COMPILER_${lang}_PRODUCED_FILES}" PARENT_SCOPE)
endfunction()
include(CMakeCompilerIdDetection)
#-----------------------------------------------------------------------------
# Function to write the compiler id source file.
function(CMAKE_DETERMINE_COMPILER_ID_WRITE lang src)
find_file(src_in ${src}.in PATHS ${CMAKE_ROOT}/Modules ${CMAKE_MODULE_PATH} NO_DEFAULT_PATH NO_CMAKE_FIND_ROOT_PATH)
file(READ ${src_in} ID_CONTENT_IN)
compiler_id_detection(CMAKE_${lang}_COMPILER_ID_CONTENT ${lang}
ID_STRING
VERSION_STRINGS
PLATFORM_DEFAULT_COMPILER
)
unset(src_in CACHE)
string(CONFIGURE "${ID_CONTENT_IN}" ID_CONTENT_OUT @ONLY)
file(WRITE ${CMAKE_${lang}_COMPILER_ID_DIR}/${src} "${ID_CONTENT_OUT}")
endfunction()
#-----------------------------------------------------------------------------
# Function to build the compiler id source file and look for output
# files.
function(CMAKE_DETERMINE_COMPILER_ID_BUILD lang testflags userflags src)
# Create a clean working directory.
file(REMOVE_RECURSE ${CMAKE_${lang}_COMPILER_ID_DIR})
file(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR})
file(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}/tmp)
CMAKE_DETERMINE_COMPILER_ID_WRITE("${lang}" "${src}")
# Construct a description of this test case.
set(COMPILER_DESCRIPTION
"Compiler: ${CMAKE_${lang}_COMPILER} ${CMAKE_${lang}_COMPILER_ID_ARG1}
Build flags: ${userflags}
Id flags: ${testflags} ${CMAKE_${lang}_COMPILER_ID_FLAGS_ALWAYS}
")
# Compile the compiler identification source.
if("${CMAKE_GENERATOR}" MATCHES "Visual Studio ([0-9]+)")
set(vs_version ${CMAKE_MATCH_1})
set(id_platform ${CMAKE_VS_PLATFORM_NAME})
set(id_lang "${lang}")
if(CMAKE_VS_PLATFORM_TOOLSET MATCHES "v[0-9]+_clang_.*")
set(id_cl clang.exe)
else()
set(id_cl cl.exe)
endif()
if(CMAKE_VS_PLATFORM_NAME STREQUAL "Tegra-Android")
set(v NsightTegra)
set(ext vcxproj)
if(lang STREQUAL CXX)
set(id_gcc g++)
set(id_clang clang++)
else()
set(id_gcc gcc)
set(id_clang clang)
endif()
elseif(lang STREQUAL Fortran)
set(v Intel)
set(ext vfproj)
set(id_cl ifort.exe)
elseif(lang STREQUAL CSharp)
set(v 10)
set(ext csproj)
set(id_cl csc.exe)
elseif(NOT "${vs_version}" VERSION_LESS 10)
set(v 10)
set(ext vcxproj)
else()
set(id_version ${vs_version}.00)
set(v 7)
set(ext vcproj)
endif()
if(CMAKE_VS_PLATFORM_TOOLSET)
if(CMAKE_VS_PLATFORM_NAME STREQUAL "Tegra-Android")
set(id_toolset "<NdkToolchainVersion>${CMAKE_VS_PLATFORM_TOOLSET}</NdkToolchainVersion>")
else()
set(id_toolset "<PlatformToolset>${CMAKE_VS_PLATFORM_TOOLSET}</PlatformToolset>")
if(CMAKE_VS_PLATFORM_TOOLSET MATCHES "Intel")
set(id_cl icl.exe)
endif()
endif()
else()
set(id_toolset "")
endif()
if(CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE)
set(id_PreferredToolArchitecture "<PreferredToolArchitecture>${CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCHITECTURE}</PreferredToolArchitecture>")
else()
set(id_PreferredToolArchitecture "")
endif()
if(CMAKE_SYSTEM_NAME STREQUAL "WindowsPhone")
set(id_system "<ApplicationType>Windows Phone</ApplicationType>")
elseif(CMAKE_SYSTEM_NAME STREQUAL "WindowsStore")
set(id_system "<ApplicationType>Windows Store</ApplicationType>")
else()
set(id_system "")
endif()
if(id_system AND CMAKE_SYSTEM_VERSION)
set(id_system_version "<ApplicationTypeRevision>${CMAKE_SYSTEM_VERSION}</ApplicationTypeRevision>")
else()
set(id_system_version "")
endif()
if(CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION)
set(id_WindowsTargetPlatformVersion "<WindowsTargetPlatformVersion>${CMAKE_VS_WINDOWS_TARGET_PLATFORM_VERSION}</WindowsTargetPlatformVersion>")
endif()
if(id_platform STREQUAL ARM)
set(id_WindowsSDKDesktopARMSupport "<WindowsSDKDesktopARMSupport>true</WindowsSDKDesktopARMSupport>")
else()
set(id_WindowsSDKDesktopARMSupport "")
endif()
if(CMAKE_VS_WINCE_VERSION)
set(id_entrypoint "mainACRTStartup")
if("${vs_version}" VERSION_LESS 9)
set(id_subsystem 9)
else()
set(id_subsystem 8)
endif()
else()
set(id_subsystem 1)
endif()
set(id_dir ${CMAKE_${lang}_COMPILER_ID_DIR})
set(id_src "${src}")
set(id_compile "ClCompile")
set(id_PostBuildEvent_Command "for %%i in (${id_cl}) do %40echo CMAKE_${lang}_COMPILER=%%~$PATH:i")
set(id_Import_props "")
set(id_Import_targets "")
set(id_ItemDefinitionGroup_entry "")
set(id_Link_AdditionalDependencies "")
if(lang STREQUAL CUDA)
if(NOT CMAKE_VS_PLATFORM_TOOLSET_CUDA)
message(FATAL_ERROR "No CUDA toolset found.")
endif()
set(cuda_tools "CUDA ${CMAKE_VS_PLATFORM_TOOLSET_CUDA}")
set(id_compile "CudaCompile")
set(id_PostBuildEvent_Command [[echo CMAKE_CUDA_COMPILER=$(CudaToolkitBinDir)\nvcc.exe]])
string(CONCAT id_Import_props [[<Import Project="$(VCTargetsPath)\BuildCustomizations\]] "${cuda_tools}" [[.props" />]])
string(CONCAT id_Import_targets [[<Import Project="$(VCTargetsPath)\BuildCustomizations\]] "${cuda_tools}" [[.targets" />]])
if(CMAKE_VS_PLATFORM_NAME STREQUAL x64)
set(id_ItemDefinitionGroup_entry "<CudaCompile><TargetMachinePlatform>64</TargetMachinePlatform></CudaCompile>")
endif()
set(id_Link_AdditionalDependencies "<AdditionalDependencies>cudart.lib</AdditionalDependencies>")
endif()
configure_file(${CMAKE_ROOT}/Modules/CompilerId/VS-${v}.${ext}.in
${id_dir}/CompilerId${lang}.${ext} @ONLY)
if(CMAKE_VS_MSBUILD_COMMAND AND NOT lang STREQUAL "Fortran")
set(command "${CMAKE_VS_MSBUILD_COMMAND}" "CompilerId${lang}.${ext}"
"/p:Configuration=Debug" "/p:Platform=${id_platform}" "/p:VisualStudioVersion=${vs_version}.0"
)
elseif(CMAKE_VS_DEVENV_COMMAND)
set(command "${CMAKE_VS_DEVENV_COMMAND}" "CompilerId${lang}.${ext}" "/build" "Debug")
else()
set(command "")
endif()
if(command)
execute_process(
COMMAND ${command}
WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}
OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT
)
else()
set(CMAKE_${lang}_COMPILER_ID_RESULT 1)
set(CMAKE_${lang}_COMPILER_ID_OUTPUT "VS environment not known to support ${lang}")
endif()
# Match the compiler location line printed out.
if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "CMAKE_${lang}_COMPILER=([^%\r\n]+)[\r\n]")
# Strip VS diagnostic output from the end of the line.
string(REGEX REPLACE " \\(TaskId:[0-9]*\\)$" "" _comp "${CMAKE_MATCH_1}")
if(EXISTS "${_comp}")
file(TO_CMAKE_PATH "${_comp}" _comp)
set(CMAKE_${lang}_COMPILER_ID_TOOL "${_comp}" PARENT_SCOPE)
endif()
endif()
elseif("${CMAKE_GENERATOR}" MATCHES "Xcode")
set(id_lang "${lang}")
set(id_type ${CMAKE_${lang}_COMPILER_XCODE_TYPE})
set(id_dir ${CMAKE_${lang}_COMPILER_ID_DIR})
set(id_src "${src}")
if(CMAKE_XCODE_PLATFORM_TOOLSET)
set(id_toolset "GCC_VERSION = ${CMAKE_XCODE_PLATFORM_TOOLSET};")
else()
set(id_toolset "")
endif()
if("${lang}" STREQUAL "Swift")
if(CMAKE_Swift_LANGUAGE_VERSION)
set(id_lang_version "SWIFT_VERSION = ${CMAKE_Swift_LANGUAGE_VERSION};")
elseif(XCODE_VERSION VERSION_GREATER_EQUAL 8.3)
set(id_lang_version "SWIFT_VERSION = 3.0;")
else()
set(id_lang_version "SWIFT_VERSION = 2.3;")
endif()
else()
set(id_lang_version "")
endif()
if(CMAKE_OSX_DEPLOYMENT_TARGET)
set(id_deployment_target
"MACOSX_DEPLOYMENT_TARGET = \"${CMAKE_OSX_DEPLOYMENT_TARGET}\";")
else()
set(id_deployment_target "")
endif()
set(id_product_type "com.apple.product-type.tool")
if(CMAKE_OSX_SYSROOT)
set(id_sdkroot "SDKROOT = \"${CMAKE_OSX_SYSROOT}\";")
if(CMAKE_OSX_SYSROOT MATCHES "(^|/)[Ii][Pp][Hh][Oo][Nn][Ee]")
set(id_product_type "com.apple.product-type.bundle.unit-test")
endif()
else()
set(id_sdkroot "")
endif()
if(NOT ${XCODE_VERSION} VERSION_LESS 3)
set(v 3)
set(ext xcodeproj)
elseif(NOT ${XCODE_VERSION} VERSION_LESS 2)
set(v 2)
set(ext xcodeproj)
else()
set(v 1)
set(ext xcode)
endif()
configure_file(${CMAKE_ROOT}/Modules/CompilerId/Xcode-${v}.pbxproj.in
${id_dir}/CompilerId${lang}.${ext}/project.pbxproj @ONLY)
unset(_ENV_MACOSX_DEPLOYMENT_TARGET)
if(DEFINED ENV{MACOSX_DEPLOYMENT_TARGET})
set(_ENV_MACOSX_DEPLOYMENT_TARGET "$ENV{MACOSX_DEPLOYMENT_TARGET}")
set(ENV{MACOSX_DEPLOYMENT_TARGET} "")
endif()
execute_process(COMMAND xcodebuild
WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}
OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT
)
if(DEFINED _ENV_MACOSX_DEPLOYMENT_TARGET)
set(ENV{MACOSX_DEPLOYMENT_TARGET} "${_ENV_MACOSX_DEPLOYMENT_TARGET}")
endif()
if(DEFINED CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_REGEX)
if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "${CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_REGEX}")
set(_comp "${CMAKE_MATCH_${CMAKE_${lang}_COMPILER_ID_TOOL_MATCH_INDEX}}")
if(EXISTS "${_comp}")
set(CMAKE_${lang}_COMPILER_ID_TOOL "${_comp}" PARENT_SCOPE)
endif()
endif()
endif()
if("${CMAKE_${lang}_COMPILER_ID_OUTPUT}" MATCHES "CURRENT_ARCH=([^%\r\n]+)[\r\n]")
set(CMAKE_${lang}_XCODE_CURRENT_ARCH "${CMAKE_MATCH_1}" PARENT_SCOPE)
endif()
else()
execute_process(
COMMAND "${CMAKE_${lang}_COMPILER}"
${CMAKE_${lang}_COMPILER_ID_ARG1}
${userflags}
${testflags}
${CMAKE_${lang}_COMPILER_ID_FLAGS_ALWAYS}
"${src}"
WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}
OUTPUT_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
ERROR_VARIABLE CMAKE_${lang}_COMPILER_ID_OUTPUT
RESULT_VARIABLE CMAKE_${lang}_COMPILER_ID_RESULT
)
endif()
# Check the result of compilation.
if(CMAKE_${lang}_COMPILER_ID_RESULT
# Intel Fortran warns and ignores preprocessor lines without /fpp
OR CMAKE_${lang}_COMPILER_ID_OUTPUT MATCHES "Bad # preprocessor line"
)
# Compilation failed.
set(MSG
"Compiling the ${lang} compiler identification source file \"${src}\" failed.
${COMPILER_DESCRIPTION}
The output was:
${CMAKE_${lang}_COMPILER_ID_RESULT}
${CMAKE_${lang}_COMPILER_ID_OUTPUT}
")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log "${MSG}")
#if(NOT CMAKE_${lang}_COMPILER_ID_ALLOW_FAIL)
# message(FATAL_ERROR "${MSG}")
#endif()
# No output files should be inspected.
set(COMPILER_${lang}_PRODUCED_FILES)
set(COMPILER_${lang}_PRODUCED_OUTPUT)
else()
# Compilation succeeded.
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Compiling the ${lang} compiler identification source file \"${src}\" succeeded.
${COMPILER_DESCRIPTION}
The output was:
${CMAKE_${lang}_COMPILER_ID_RESULT}
${CMAKE_${lang}_COMPILER_ID_OUTPUT}
")
# Find the executable produced by the compiler, try all files in the
# binary dir.
string(REGEX REPLACE "([][])" "[\\1]" _glob_id_dir "${CMAKE_${lang}_COMPILER_ID_DIR}")
file(GLOB files
RELATIVE ${CMAKE_${lang}_COMPILER_ID_DIR}
# normal case
${_glob_id_dir}/*
# com.apple.package-type.bundle.unit-test
${_glob_id_dir}/*.xctest/*
)
list(REMOVE_ITEM files "${src}")
set(COMPILER_${lang}_PRODUCED_FILES "")
foreach(file ${files})
if(NOT IS_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}/${file})
list(APPEND COMPILER_${lang}_PRODUCED_FILES ${file})
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Compilation of the ${lang} compiler identification source \""
"${src}\" produced \"${file}\"\n\n")
endif()
endforeach()
if(NOT COMPILER_${lang}_PRODUCED_FILES)
# No executable was found.
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Compilation of the ${lang} compiler identification source \""
"${src}\" did not produce an executable in \""
"${CMAKE_${lang}_COMPILER_ID_DIR}\".\n\n")
endif()
set(COMPILER_${lang}_PRODUCED_OUTPUT "${CMAKE_${lang}_COMPILER_ID_OUTPUT}")
endif()
# Return the files produced by the compilation.
set(COMPILER_${lang}_PRODUCED_FILES "${COMPILER_${lang}_PRODUCED_FILES}" PARENT_SCOPE)
set(COMPILER_${lang}_PRODUCED_OUTPUT "${COMPILER_${lang}_PRODUCED_OUTPUT}" PARENT_SCOPE)
endfunction()
#-----------------------------------------------------------------------------
# Function to extract the compiler id from compiler output.
function(CMAKE_DETERMINE_COMPILER_ID_MATCH_VENDOR lang output)
foreach(vendor ${CMAKE_${lang}_COMPILER_ID_MATCH_VENDORS})
if(output MATCHES "${CMAKE_${lang}_COMPILER_ID_MATCH_VENDOR_REGEX_${vendor}}")
set(CMAKE_${lang}_COMPILER_ID "${vendor}")
endif()
endforeach()
set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE)
endfunction()
#-----------------------------------------------------------------------------
# Function to extract the compiler id from an executable.
function(CMAKE_DETERMINE_COMPILER_ID_CHECK lang file)
# Look for a compiler id if not yet known.
if(NOT CMAKE_${lang}_COMPILER_ID)
# Read the compiler identification string from the executable file.
set(COMPILER_ID)
set(COMPILER_VERSION)
set(COMPILER_VERSION_MAJOR 0)
set(COMPILER_VERSION_MINOR 0)
set(COMPILER_VERSION_PATCH 0)
set(COMPILER_VERSION_TWEAK 0)
set(HAVE_COMPILER_VERSION_MAJOR 0)
set(HAVE_COMPILER_VERSION_MINOR 0)
set(HAVE_COMPILER_VERSION_PATCH 0)
set(HAVE_COMPILER_VERSION_TWEAK 0)
set(COMPILER_WRAPPER)
set(DIGIT_VALUE_1 1)
set(DIGIT_VALUE_2 10)
set(DIGIT_VALUE_3 100)
set(DIGIT_VALUE_4 1000)
set(DIGIT_VALUE_5 10000)
set(DIGIT_VALUE_6 100000)
set(DIGIT_VALUE_7 1000000)
set(DIGIT_VALUE_8 10000000)
set(PLATFORM_ID)
set(ARCHITECTURE_ID)
set(SIMULATE_ID)
set(SIMULATE_VERSION)
file(STRINGS ${file}
CMAKE_${lang}_COMPILER_ID_STRINGS LIMIT_COUNT 38
${CMAKE_${lang}_COMPILER_ID_STRINGS_PARAMETERS}
REGEX "INFO:[A-Za-z0-9_]+\\[[^]]*\\]")
set(COMPILER_ID_TWICE)
# In C# binaries, some strings are found more than once.
list(REMOVE_DUPLICATES CMAKE_${lang}_COMPILER_ID_STRINGS)
foreach(info ${CMAKE_${lang}_COMPILER_ID_STRINGS})
if("${info}" MATCHES "INFO:compiler\\[([^]\"]*)\\]")
if(COMPILER_ID)
set(COMPILER_ID_TWICE 1)
endif()
set(COMPILER_ID "${CMAKE_MATCH_1}")
endif()
if("${info}" MATCHES "INFO:platform\\[([^]\"]*)\\]")
set(PLATFORM_ID "${CMAKE_MATCH_1}")
endif()
if("${info}" MATCHES "INFO:arch\\[([^]\"]*)\\]")
set(ARCHITECTURE_ID "${CMAKE_MATCH_1}")
endif()
if("${info}" MATCHES "INFO:compiler_version\\[([^]\"]*)\\]")
string(REGEX REPLACE "^0+([0-9])" "\\1" COMPILER_VERSION "${CMAKE_MATCH_1}")
string(REGEX REPLACE "\\.0+([0-9])" ".\\1" COMPILER_VERSION "${COMPILER_VERSION}")
endif()
foreach(comp MAJOR MINOR PATCH TWEAK)
foreach(digit 1 2 3 4 5 6 7 8 9)
if("${info}" MATCHES "INFO:compiler_version_${comp}_digit_${digit}\\[([0-9])\\]")
set(value ${CMAKE_MATCH_1})
math(EXPR COMPILER_VERSION_${comp} "${COMPILER_VERSION_${comp}} + ${value} * ${DIGIT_VALUE_${digit}}")
set(HAVE_COMPILER_VERSION_${comp} 1)
endif()
endforeach()
endforeach()
if("${info}" MATCHES "INFO:compiler_wrapper\\[([^]\"]*)\\]")
set(COMPILER_WRAPPER "${CMAKE_MATCH_1}")
endif()
if("${info}" MATCHES "INFO:simulate\\[([^]\"]*)\\]")
set(SIMULATE_ID "${CMAKE_MATCH_1}")
endif()
if("${info}" MATCHES "INFO:simulate_version\\[([^]\"]*)\\]")
string(REGEX REPLACE "^0+([0-9])" "\\1" SIMULATE_VERSION "${CMAKE_MATCH_1}")
string(REGEX REPLACE "\\.0+([0-9])" ".\\1" SIMULATE_VERSION "${SIMULATE_VERSION}")
endif()
if("${info}" MATCHES "INFO:qnxnto\\[\\]")
set(COMPILER_QNXNTO 1)
endif()
if("${info}" MATCHES "INFO:dialect_default\\[([^]\"]*)\\]")
set(CMAKE_${lang}_STANDARD_COMPUTED_DEFAULT "${CMAKE_MATCH_1}")
endif()
endforeach()
# Construct compiler version from components if needed.
if(NOT DEFINED COMPILER_VERSION AND HAVE_COMPILER_VERSION_MAJOR)
set(COMPILER_VERSION "${COMPILER_VERSION_MAJOR}")
if(HAVE_COMPILER_VERSION_MINOR)
string(APPEND COMPILER_VERSION ".${COMPILER_VERSION_MINOR}")
if(HAVE_COMPILER_VERSION_PATCH)
string(APPEND COMPILER_VERSION ".${COMPILER_VERSION_PATCH}")
if(HAVE_COMPILER_VERSION_TWEAK)
string(APPEND COMPILER_VERSION ".${COMPILER_VERSION_TWEAK}")
endif()
endif()
endif()
endif()
# Detect the exact architecture from the PE header.
if(WIN32)
# The offset to the PE signature is stored at 0x3c.
file(READ ${file} peoffsethex LIMIT 1 OFFSET 60 HEX)
string(SUBSTRING "${peoffsethex}" 0 1 peoffsethex1)
string(SUBSTRING "${peoffsethex}" 1 1 peoffsethex2)
set(peoffsetexpression "${peoffsethex1} * 16 + ${peoffsethex2}")
string(REPLACE "a" "10" peoffsetexpression "${peoffsetexpression}")
string(REPLACE "b" "11" peoffsetexpression "${peoffsetexpression}")
string(REPLACE "c" "12" peoffsetexpression "${peoffsetexpression}")
string(REPLACE "d" "13" peoffsetexpression "${peoffsetexpression}")
string(REPLACE "e" "14" peoffsetexpression "${peoffsetexpression}")
string(REPLACE "f" "15" peoffsetexpression "${peoffsetexpression}")
math(EXPR peoffset "${peoffsetexpression}")
file(READ ${file} peheader LIMIT 6 OFFSET ${peoffset} HEX)
if(peheader STREQUAL "50450000a201")
set(ARCHITECTURE_ID "SH3")
elseif(peheader STREQUAL "50450000a301")
set(ARCHITECTURE_ID "SH3DSP")
elseif(peheader STREQUAL "50450000a601")
set(ARCHITECTURE_ID "SH4")
elseif(peheader STREQUAL "50450000a801")
set(ARCHITECTURE_ID "SH5")
endif()
endif()
# Check if a valid compiler and platform were found.
if(COMPILER_ID AND NOT COMPILER_ID_TWICE)
set(CMAKE_${lang}_COMPILER_ID "${COMPILER_ID}")
set(CMAKE_${lang}_PLATFORM_ID "${PLATFORM_ID}")
set(MSVC_${lang}_ARCHITECTURE_ID "${ARCHITECTURE_ID}")
set(CMAKE_${lang}_COMPILER_VERSION "${COMPILER_VERSION}")
set(CMAKE_${lang}_SIMULATE_ID "${SIMULATE_ID}")
set(CMAKE_${lang}_SIMULATE_VERSION "${SIMULATE_VERSION}")
endif()
# Check the compiler identification string.
if(CMAKE_${lang}_COMPILER_ID)
# The compiler identification was found.
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"The ${lang} compiler identification is ${CMAKE_${lang}_COMPILER_ID}, found in \""
"${file}\"\n\n")
else()
# The compiler identification could not be found.
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"The ${lang} compiler identification could not be found in \""
"${file}\"\n\n")
endif()
endif()
# try to figure out the executable format: ELF, COFF, Mach-O
if(NOT CMAKE_EXECUTABLE_FORMAT)
file(READ ${file} CMAKE_EXECUTABLE_MAGIC LIMIT 4 HEX)
# ELF files start with 0x7f"ELF"
if("${CMAKE_EXECUTABLE_MAGIC}" STREQUAL "7f454c46")
set(CMAKE_EXECUTABLE_FORMAT "ELF" CACHE INTERNAL "Executable file format")
endif()
# # COFF (.exe) files start with "MZ"
# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "4d5a....")
# set(CMAKE_EXECUTABLE_FORMAT "COFF" CACHE STRING "Executable file format")
# endif()
#
# # Mach-O files start with CAFEBABE or FEEDFACE, according to http://radio.weblogs.com/0100490/2003/01/28.html
# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "cafebabe")
# set(CMAKE_EXECUTABLE_FORMAT "MACHO" CACHE STRING "Executable file format")
# endif()
# if("${CMAKE_EXECUTABLE_MAGIC}" MATCHES "feedface")
# set(CMAKE_EXECUTABLE_FORMAT "MACHO" CACHE STRING "Executable file format")
# endif()
endif()
if(NOT DEFINED CMAKE_EXECUTABLE_FORMAT)
set(CMAKE_EXECUTABLE_FORMAT)
endif()
# Return the information extracted.
set(CMAKE_${lang}_COMPILER_ID "${CMAKE_${lang}_COMPILER_ID}" PARENT_SCOPE)
set(CMAKE_${lang}_PLATFORM_ID "${CMAKE_${lang}_PLATFORM_ID}" PARENT_SCOPE)
set(MSVC_${lang}_ARCHITECTURE_ID "${MSVC_${lang}_ARCHITECTURE_ID}"
PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_VERSION "${CMAKE_${lang}_COMPILER_VERSION}" PARENT_SCOPE)
set(CMAKE_${lang}_COMPILER_WRAPPER "${COMPILER_WRAPPER}" PARENT_SCOPE)
set(CMAKE_${lang}_SIMULATE_ID "${CMAKE_${lang}_SIMULATE_ID}" PARENT_SCOPE)
set(CMAKE_${lang}_SIMULATE_VERSION "${CMAKE_${lang}_SIMULATE_VERSION}" PARENT_SCOPE)
set(CMAKE_EXECUTABLE_FORMAT "${CMAKE_EXECUTABLE_FORMAT}" PARENT_SCOPE)
set(COMPILER_QNXNTO "${COMPILER_QNXNTO}" PARENT_SCOPE)
set(CMAKE_${lang}_STANDARD_COMPUTED_DEFAULT "${CMAKE_${lang}_STANDARD_COMPUTED_DEFAULT}" PARENT_SCOPE)
endfunction()
#-----------------------------------------------------------------------------
# Function to query the compiler vendor.
# This uses a table with entries of the form
# list(APPEND CMAKE_${lang}_COMPILER_ID_VENDORS ${vendor})
# set(CMAKE_${lang}_COMPILER_ID_VENDOR_FLAGS_${vendor} -some-vendor-flag)
# set(CMAKE_${lang}_COMPILER_ID_VENDOR_REGEX_${vendor} "Some Vendor Output")
# We try running the compiler with the flag for each vendor and
# matching its regular expression in the output.
function(CMAKE_DETERMINE_COMPILER_ID_VENDOR lang userflags)
if(NOT CMAKE_${lang}_COMPILER_ID_DIR)
# We get here when this function is called not from within CMAKE_DETERMINE_COMPILER_ID()
# This is done e.g. for detecting the compiler ID for assemblers.
# Compute the directory in which to run the test and Create a clean working directory.
set(CMAKE_${lang}_COMPILER_ID_DIR ${CMAKE_PLATFORM_INFO_DIR}/CompilerId${lang})
file(REMOVE_RECURSE ${CMAKE_${lang}_COMPILER_ID_DIR})
file(MAKE_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR})
endif()
foreach(vendor ${CMAKE_${lang}_COMPILER_ID_VENDORS})
set(flags ${CMAKE_${lang}_COMPILER_ID_VENDOR_FLAGS_${vendor}})
set(regex ${CMAKE_${lang}_COMPILER_ID_VENDOR_REGEX_${vendor}})
execute_process(
COMMAND "${CMAKE_${lang}_COMPILER}"
${CMAKE_${lang}_COMPILER_ID_ARG1}
${userflags}
${flags}
WORKING_DIRECTORY ${CMAKE_${lang}_COMPILER_ID_DIR}
OUTPUT_VARIABLE output ERROR_VARIABLE output
RESULT_VARIABLE result
TIMEOUT 10
)
if("${output}" MATCHES "${regex}")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
"Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" "
"matched \"${regex}\":\n${output}")
set(CMAKE_${lang}_COMPILER_ID "${vendor}" PARENT_SCOPE)
break()
else()
if("${result}" MATCHES "timeout")
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" "
"terminated after 10 s due to timeout.")
else()
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
"Checking whether the ${lang} compiler is ${vendor} using \"${flags}\" "
"did not match \"${regex}\":\n${output}")
endif()
endif()
endforeach()
endfunction()
function(CMAKE_DETERMINE_MSVC_SHOWINCLUDES_PREFIX lang userflags)
# Run this MSVC-compatible compiler to detect what the /showIncludes
# option displays. We can use a C source even with the C++ compiler
# because MSVC-compatible compilers handle both and show the same output.
set(showdir ${CMAKE_BINARY_DIR}/CMakeFiles/ShowIncludes)
file(WRITE ${showdir}/foo.h "\n")
file(WRITE ${showdir}/main.c "#include \"foo.h\" \nint main(){}\n")
execute_process(
COMMAND "${CMAKE_${lang}_COMPILER}"
${CMAKE_${lang}_COMPILER_ID_ARG1}
${userflags}
/nologo /showIncludes /c main.c
WORKING_DIRECTORY ${showdir}
OUTPUT_VARIABLE out
ERROR_VARIABLE err
RESULT_VARIABLE res
)
if(res EQUAL 0 AND "${out}" MATCHES "(^|\n)([^:\n]*:[^:\n]*:[ \t]*)")
set(CMAKE_${lang}_CL_SHOWINCLUDES_PREFIX "${CMAKE_MATCH_2}" PARENT_SCOPE)
else()
set(CMAKE_${lang}_CL_SHOWINCLUDES_PREFIX "" PARENT_SCOPE)
endif()
endfunction()
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