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Detect ARM processors when using clang

This commit is contained in:
Carles Fernandez 2019-11-02 00:12:47 +01:00
parent 681022b9c9
commit d6b4ba4fc3
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GPG Key ID: 4C583C52B0C3877D
1 changed files with 73 additions and 57 deletions
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130
cmake/Modules/TestForARM.cmake
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@ -23,17 +23,17 @@
############################################################################## ##############################################################################
if(__TEST_FOR_ARM_INCLUDED) if(__TEST_FOR_ARM_INCLUDED)
return() return()
endif() endif()
set(__TEST_FOR_ARM_INCLUDED TRUE) set(__TEST_FOR_ARM_INCLUDED TRUE)
# Function checks if the input string defines ARM version and sets the # Function checks if the input string defines ARM version and sets the
# output variable if found. # output variable if found.
function(check_arm_version ppdef input_string version output_var) function(check_arm_version ppdef input_string version output_var)
string(REGEX MATCH "${ppdef}" _VERSION_MATCH "${input_string}") string(REGEX MATCH "${ppdef}" _VERSION_MATCH "${input_string}")
if(NOT _VERSION_MATCH STREQUAL "") if(NOT _VERSION_MATCH STREQUAL "")
set(${output_var} "${version}" PARENT_SCOPE) set(${output_var} "${version}" PARENT_SCOPE)
endif() endif()
endfunction() endfunction()
message(STATUS "Checking for ARM") message(STATUS "Checking for ARM")
@ -48,62 +48,78 @@ else()
endif() endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU") if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
execute_process(COMMAND echo "int main(){}" execute_process(COMMAND echo "int main(){}"
COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -dM ${VERBOSE_BUILDING} -E - COMMAND ${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} -dM ${VERBOSE_BUILDING} -E -
OUTPUT_VARIABLE TEST_FOR_ARM_RESULTS) OUTPUT_VARIABLE TEST_FOR_ARM_RESULTS
)
string(REGEX MATCH "__arm" ARM_FOUND "${TEST_FOR_ARM_RESULTS}") string(REGEX MATCH "__arm" ARM_FOUND "${TEST_FOR_ARM_RESULTS}")
if(ARM_FOUND STREQUAL "") if(ARM_FOUND STREQUAL "")
string(REGEX MATCH "__aarch64" ARM_FOUND "${TEST_FOR_ARM_RESULTS}") string(REGEX MATCH "__aarch64" ARM_FOUND "${TEST_FOR_ARM_RESULTS}")
endif() endif()
if(ARM_FOUND STREQUAL "")
if(NOT ARM_FOUND STREQUAL "") if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
set(IS_ARM TRUE) set(ARM_FOUND ${CMAKE_HOST_SYSTEM_PROCESSOR})
message(STATUS "ARM system detected") endif()
endif()
# detect the version
check_arm_version("__ARM_ARCH_2__" ${TEST_FOR_ARM_RESULTS} "armv2" ARM_VERSION) if(NOT ARM_FOUND STREQUAL "")
check_arm_version("__ARM_ARCH_2A__" ${TEST_FOR_ARM_RESULTS} "armv2a" ARM_VERSION) set(IS_ARM TRUE)
check_arm_version("__ARM_ARCH_3__" ${TEST_FOR_ARM_RESULTS} "armv3" ARM_VERSION) message(STATUS "ARM system detected.")
check_arm_version("__ARM_ARCH_3M__" ${TEST_FOR_ARM_RESULTS} "armv3m" ARM_VERSION)
check_arm_version("__ARM_ARCH_4__" ${TEST_FOR_ARM_RESULTS} "armv4" ARM_VERSION) # detect the version
check_arm_version("__ARM_ARCH_4T__" ${TEST_FOR_ARM_RESULTS} "armv4t" ARM_VERSION) check_arm_version("__ARM_ARCH_2__" ${TEST_FOR_ARM_RESULTS} "armv2" ARM_VERSION)
check_arm_version("__ARM_ARCH_5__" ${TEST_FOR_ARM_RESULTS} "armv5" ARM_VERSION) check_arm_version("__ARM_ARCH_2A__" ${TEST_FOR_ARM_RESULTS} "armv2a" ARM_VERSION)
check_arm_version("__ARM_ARCH_5T__" ${TEST_FOR_ARM_RESULTS} "armv5t" ARM_VERSION) check_arm_version("__ARM_ARCH_3__" ${TEST_FOR_ARM_RESULTS} "armv3" ARM_VERSION)
check_arm_version("__ARM_ARCH_5E__" ${TEST_FOR_ARM_RESULTS} "armv5e" ARM_VERSION) check_arm_version("__ARM_ARCH_3M__" ${TEST_FOR_ARM_RESULTS} "armv3m" ARM_VERSION)
check_arm_version("__ARM_ARCH_5TE__" ${TEST_FOR_ARM_RESULTS} "armv5te" ARM_VERSION) check_arm_version("__ARM_ARCH_4__" ${TEST_FOR_ARM_RESULTS} "armv4" ARM_VERSION)
check_arm_version("__ARM_ARCH_6__" ${TEST_FOR_ARM_RESULTS} "armv6" ARM_VERSION) check_arm_version("__ARM_ARCH_4T__" ${TEST_FOR_ARM_RESULTS} "armv4t" ARM_VERSION)
check_arm_version("__ARM_ARCH_6J__" ${TEST_FOR_ARM_RESULTS} "armv6j" ARM_VERSION) check_arm_version("__ARM_ARCH_5__" ${TEST_FOR_ARM_RESULTS} "armv5" ARM_VERSION)
check_arm_version("__ARM_ARCH_6K__" ${TEST_FOR_ARM_RESULTS} "armv6k" ARM_VERSION) check_arm_version("__ARM_ARCH_5T__" ${TEST_FOR_ARM_RESULTS} "armv5t" ARM_VERSION)
check_arm_version("__ARM_ARCH_6T2__" ${TEST_FOR_ARM_RESULTS} "armv6t2" ARM_VERSION) check_arm_version("__ARM_ARCH_5E__" ${TEST_FOR_ARM_RESULTS} "armv5e" ARM_VERSION)
check_arm_version("__ARM_ARCH_6Z__" ${TEST_FOR_ARM_RESULTS} "armv6z" ARM_VERSION) check_arm_version("__ARM_ARCH_5TE__" ${TEST_FOR_ARM_RESULTS} "armv5te" ARM_VERSION)
check_arm_version("__ARM_ARCH_6ZK__" ${TEST_FOR_ARM_RESULTS} "armv6zk" ARM_VERSION) check_arm_version("__ARM_ARCH_6__" ${TEST_FOR_ARM_RESULTS} "armv6" ARM_VERSION)
check_arm_version("__ARM_ARCH_6M__" ${TEST_FOR_ARM_RESULTS} "armv6-m" ARM_VERSION) check_arm_version("__ARM_ARCH_6J__" ${TEST_FOR_ARM_RESULTS} "armv6j" ARM_VERSION)
check_arm_version("__ARM_ARCH_7__" ${TEST_FOR_ARM_RESULTS} "armv7" ARM_VERSION) check_arm_version("__ARM_ARCH_6K__" ${TEST_FOR_ARM_RESULTS} "armv6k" ARM_VERSION)
check_arm_version("__ARM_ARCH_7A__" ${TEST_FOR_ARM_RESULTS} "armv7-a" ARM_VERSION) check_arm_version("__ARM_ARCH_6T2__" ${TEST_FOR_ARM_RESULTS} "armv6t2" ARM_VERSION)
check_arm_version("__ARM_ARCH_7M__" ${TEST_FOR_ARM_RESULTS} "armv7-m" ARM_VERSION) check_arm_version("__ARM_ARCH_6Z__" ${TEST_FOR_ARM_RESULTS} "armv6z" ARM_VERSION)
check_arm_version("__ARM_ARCH_7R__" ${TEST_FOR_ARM_RESULTS} "armv7-r" ARM_VERSION) check_arm_version("__ARM_ARCH_6ZK__" ${TEST_FOR_ARM_RESULTS} "armv6zk" ARM_VERSION)
check_arm_version("__ARM_ARCH_7EM_" ${TEST_FOR_ARM_RESULTS} "armv7e-m" ARM_VERSION) check_arm_version("__ARM_ARCH_6M__" ${TEST_FOR_ARM_RESULTS} "armv6-m" ARM_VERSION)
check_arm_version("__ARM_ARCH_7VE__" ${TEST_FOR_ARM_RESULTS} "armv7ve" ARM_VERSION) check_arm_version("__ARM_ARCH_7__" ${TEST_FOR_ARM_RESULTS} "armv7" ARM_VERSION)
check_arm_version("__ARM_ARCH_8A__" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION) check_arm_version("__ARM_ARCH_7A__" ${TEST_FOR_ARM_RESULTS} "armv7-a" ARM_VERSION)
check_arm_version("__ARM_ARCH_8A" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION) check_arm_version("__ARM_ARCH_7M__" ${TEST_FOR_ARM_RESULTS} "armv7-m" ARM_VERSION)
check_arm_version("__ARM_ARCH_7R__" ${TEST_FOR_ARM_RESULTS} "armv7-r" ARM_VERSION)
# anything else just define as arm check_arm_version("__ARM_ARCH_7EM_" ${TEST_FOR_ARM_RESULTS} "armv7e-m" ARM_VERSION)
if(ARM_VERSION STREQUAL "") check_arm_version("__ARM_ARCH_7VE__" ${TEST_FOR_ARM_RESULTS} "armv7ve" ARM_VERSION)
message(STATUS "Couldn't detect ARM version. Setting to 'arm'") check_arm_version("__ARM_ARCH_8A__" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION)
set(ARM_VERSION "arm") check_arm_version("__ARM_ARCH_8A" ${TEST_FOR_ARM_RESULTS} "armv8-a" ARM_VERSION)
else()
message(STATUS "ARM version ${ARM_VERSION} detected") # anything else just define as unknown
if(ARM_VERSION STREQUAL "")
message(STATUS "Couldn't detect ARM version.")
set(ARM_VERSION "unknown")
else()
message(STATUS "ARM version ${ARM_VERSION} detected.")
endif()
else()
message(STATUS "System is not ARM.")
endif()
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
set(IS_ARM TRUE)
set(ARM_VERSION ${CMAKE_HOST_SYSTEM_PROCESSOR})
message(STATUS "ARM version ${ARM_VERSION} detected.")
endif() endif()
else()
message(STATUS "System is not ARM")
endif()
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "ARMClang") elseif(CMAKE_CXX_COMPILER_ID STREQUAL "ARMClang")
set(IS_ARM TRUE) set(IS_ARM TRUE)
set(ARM_VERSION "arm") set(ARM_VERSION "arm")
if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm")
set(ARM_VERSION ${CMAKE_HOST_SYSTEM_PROCESSOR})
message(STATUS "ARM version ${ARM_VERSION} detected.")
endif()
else() else()
message(STATUS "Not detecting ARM on non-GNUCXX or non-ARMClang compiler. Defaulting to false") message(STATUS "Not detecting ARM on non-GNUCXX or non-Clang compiler. Defaulting to false.")
message(STATUS "If you are compiling for ARM, set IS_ARM=ON manually") message(STATUS "If you are compiling for ARM, set -DIS_ARM=ON manually.")
endif() endif()
set(IS_ARM ${IS_ARM} CACHE BOOL "Compiling for ARM") set(IS_ARM ${IS_ARM} CACHE BOOL "Compiling for ARM")