mirror of
https://github.com/gnss-sdr/gnss-sdr
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116 lines
5.2 KiB
CMake
116 lines
5.2 KiB
CMake
# GNSS-SDR is a Global Navigation Satellite System software-defined receiver.
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# This file is part of GNSS-SDR.
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#
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# SPDX-FileCopyrightText: 2011-2020 C. Fernandez-Prades cfernandez(at)cttc.es
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# SPDX-License-Identifier: BSD-3-Clause
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##############################################################################
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# check if the compiler defines the architecture as ARM and set the
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# version, if found.
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#
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# - Anthony Arnold
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##############################################################################
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if(__TEST_FOR_ARM_INCLUDED)
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return()
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endif()
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set(__TEST_FOR_ARM_INCLUDED TRUE)
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# Function checks if the input string defines ARM version and sets the
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# output variable if found.
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function(check_arm_version ppdef input_string version output_var)
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string(REGEX MATCH "${ppdef}" _VERSION_MATCH "${input_string}")
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if(NOT _VERSION_MATCH STREQUAL "")
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set(${output_var} "${version}" PARENT_SCOPE)
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endif()
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endfunction()
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message(STATUS "Checking for ARM")
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set(IS_ARM FALSE)
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set(ARM_VERSION "")
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if(ENABLE_PACKAGING)
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set(VERBOSE_BUILDING "-v")
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else()
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set(VERBOSE_BUILDING "")
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endif()
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if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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execute_process(COMMAND echo "int main(){}"
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COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -dM ${VERBOSE_BUILDING} -E -
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OUTPUT_VARIABLE TEST_FOR_ARM_RESULTS
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)
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string(REGEX MATCH "__arm" ARM_FOUND "${TEST_FOR_ARM_RESULTS}")
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if(ARM_FOUND STREQUAL "")
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string(REGEX MATCH "__aarch64" ARM_FOUND "${TEST_FOR_ARM_RESULTS}")
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endif()
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if(ARM_FOUND STREQUAL "")
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if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
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set(ARM_FOUND ${CMAKE_HOST_SYSTEM_PROCESSOR})
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endif()
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endif()
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if(NOT ARM_FOUND STREQUAL "")
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set(IS_ARM TRUE)
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message(STATUS "ARM system detected.")
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# detect the version
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check_arm_version("__ARM_ARCH_2__" ${TEST_FOR_ARM_RESULTS} "armv2" ARM_VERSION)
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check_arm_version("__ARM_ARCH_2A__" ${TEST_FOR_ARM_RESULTS} "armv2a" ARM_VERSION)
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check_arm_version("__ARM_ARCH_3__" ${TEST_FOR_ARM_RESULTS} "armv3" ARM_VERSION)
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check_arm_version("__ARM_ARCH_3M__" ${TEST_FOR_ARM_RESULTS} "armv3m" ARM_VERSION)
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check_arm_version("__ARM_ARCH_4__" ${TEST_FOR_ARM_RESULTS} "armv4" ARM_VERSION)
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check_arm_version("__ARM_ARCH_4T__" ${TEST_FOR_ARM_RESULTS} "armv4t" ARM_VERSION)
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check_arm_version("__ARM_ARCH_5__" ${TEST_FOR_ARM_RESULTS} "armv5" ARM_VERSION)
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check_arm_version("__ARM_ARCH_5T__" ${TEST_FOR_ARM_RESULTS} "armv5t" ARM_VERSION)
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check_arm_version("__ARM_ARCH_5E__" ${TEST_FOR_ARM_RESULTS} "armv5e" ARM_VERSION)
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check_arm_version("__ARM_ARCH_5TE__" ${TEST_FOR_ARM_RESULTS} "armv5te" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6__" ${TEST_FOR_ARM_RESULTS} "armv6" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6J__" ${TEST_FOR_ARM_RESULTS} "armv6j" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6K__" ${TEST_FOR_ARM_RESULTS} "armv6k" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6T2__" ${TEST_FOR_ARM_RESULTS} "armv6t2" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6Z__" ${TEST_FOR_ARM_RESULTS} "armv6z" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6ZK__" ${TEST_FOR_ARM_RESULTS} "armv6zk" ARM_VERSION)
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check_arm_version("__ARM_ARCH_6M__" ${TEST_FOR_ARM_RESULTS} "armv6-m" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7__" ${TEST_FOR_ARM_RESULTS} "armv7" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7A__" ${TEST_FOR_ARM_RESULTS} "armv7-a" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7M__" ${TEST_FOR_ARM_RESULTS} "armv7-m" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7R__" ${TEST_FOR_ARM_RESULTS} "armv7-r" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7EM_" ${TEST_FOR_ARM_RESULTS} "armv7e-m" ARM_VERSION)
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check_arm_version("__ARM_ARCH_7VE__" ${TEST_FOR_ARM_RESULTS} "armv7ve" ARM_VERSION)
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check_arm_version("__ARM_ARCH_8A__" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION)
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check_arm_version("__ARM_ARCH_8A" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION)
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# anything else just define as unknown
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if(ARM_VERSION STREQUAL "")
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message(STATUS "Couldn't detect ARM version.")
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set(ARM_VERSION "unknown")
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else()
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message(STATUS "ARM version ${ARM_VERSION} detected.")
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endif()
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else()
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message(STATUS "System is not ARM.")
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endif()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
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if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
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set(IS_ARM TRUE)
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set(ARM_VERSION ${CMAKE_HOST_SYSTEM_PROCESSOR})
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message(STATUS "ARM version ${ARM_VERSION} detected.")
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endif()
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elseif(CMAKE_CXX_COMPILER_ID STREQUAL "ARMClang")
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set(IS_ARM TRUE)
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set(ARM_VERSION "arm")
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if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
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set(ARM_VERSION ${CMAKE_HOST_SYSTEM_PROCESSOR})
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message(STATUS "ARM version ${ARM_VERSION} detected.")
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endif()
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else()
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message(STATUS "Not detecting ARM on non-GNUCXX or non-Clang compiler. Defaulting to false.")
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message(STATUS "If you are compiling for ARM, set -DIS_ARM=ON manually.")
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endif()
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set(IS_ARM ${IS_ARM} CACHE BOOL "Compiling for ARM")
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set(ARM_VERSION ${ARM_VERSION} CACHE STRING "ARM version")
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