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#=========================== begin_copyright_notice ============================
#
# Copyright (C) 2021 Intel Corporation
#
# SPDX-License-Identifier: MIT
#
#============================ end_copyright_notice =============================
#=========================== Host / Target Architecture ========================
include_guard(DIRECTORY)
# Detects host and target architecture.
#
# Currently supports: Windows32, Windows64, WindowsARM, Android32, Android64, AndroidMIPS, AndroidARM,
# Linux32, Linux64, LinuxMIPS, LinuxARM
#
# @param targetArchVarName Name of variable placeholder for target architecture.
# @param hostArchVarName Name of variable placeholder for host architecture.
function(igc_arch_detect targetArchVarName hostArchVarName)
string(TOLOWER "${CMAKE_GENERATOR}" _cmakeGenerator)
string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" _cmakeTargetProcessor)
# Target architecture:
# Detect target architecture on Windows using suffix from generator.
if(CMAKE_SYSTEM_NAME MATCHES "Windows")
if(_cmakeGenerator MATCHES " (arm|aarch64)$")
set(_targetArchitecture "WindowsARM")
elseif(_cmakeGenerator MATCHES " (x64|x86_64|win64|amd64|64[ ]*\\-[ ]*bit)$")
set(_targetArchitecture "Windows64")
else()
set(_targetArchitecture "Windows32")
endif()
# Use system processor set by toolchain or CMake.
elseif(ANDROID OR (CMAKE_SYSTEM_NAME MATCHES "Linux"))
if(ANDROID)
set(_targetArchOS "Android")
else()
set(_targetArchOS "Linux")
endif()
if(_cmakeTargetProcessor MATCHES "(x64|x86_64|amd64|64[ ]*\\-[ ]*bit)")
set(_targetArchitecture "${_targetArchOS}64")
elseif(_cmakeTargetProcessor MATCHES "(x32|x86|i[0-9]+86|32[ ]*\\-[ ]*bit)")
set(_targetArchitecture "${_targetArchOS}32")
elseif(_cmakeTargetProcessor MATCHES "mips")
set(_targetArchitecture "${_targetArchOS}MIPS")
else()
set(_targetArchitecture "${_targetArchOS}ARM")
endif()
else()
set(_targetArchitecture "Unknown-NOTFOUND")
endif()
# Host architecture:
# Detect system architecture using WMI.
if(CMAKE_HOST_SYSTEM_NAME MATCHES "Windows")
if (("$ENV{PROCESSOR_ARCHITECTURE}" MATCHES "AMD64") OR
("$ENV{PROCESSOR_ARCHITEW6432}" MATCHES "AMD64"))
set(_hostArchitecture "Windows64")
else()
set(_hostArchitecture "Windows32")
endif()
# Use 'uname -m' to detect kernel architecture.
elseif(CMAKE_HOST_SYSTEM_NAME MATCHES "Linux")
set(_hostArchOS "Linux")
set(_osArchitecture "x86_64")
execute_process(
COMMAND uname -m
TIMEOUT 10
OUTPUT_VARIABLE _osArchitecture
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(TOLOWER "${_osArchitecture}" _osArchitecture)
if(_osArchitecture MATCHES "(x64|x86_64|amd64|64[ ]*\\-[ ]*bit)")
set(_hostArchitecture "${_hostArchOS}64")
elseif(_osArchitecture MATCHES "(x32|x86|i[0-9]+86|32[ ]*\\-[ ]*bit)")
set(_hostArchitecture "${_hostArchOS}32")
elseif(_osArchitecture MATCHES "mips")
set(_hostArchitecture "${_hostArchOS}MIPS")
else()
set(_hostArchitecture "${_hostArchOS}ARM")
endif()
else()
set(_hostArchitecture "Unknown-NOTFOUND")
endif()
set("${targetArchVarName}" "${_targetArchitecture}" PARENT_SCOPE)
set("${hostArchVarName}" "${_hostArchitecture}" PARENT_SCOPE)
endfunction()
# Determines whether architecture is valid (accepts only normalized).
#
# @param retValName Name of variable placeholder where result will be returned.
# @param arch Architecture name to validate. Architecture should be normalized.
function(igc_arch_validate retVarName arch)
# Allowed architectures (list).
set(__allowedArchs
"Windows32" "Windows64" "WindowsARM"
"Android32" "Android64" "AndroidMIPS" "AndroidARM"
"Linux32" "Linux64" "LinuxMIPS" "LinuxARM"
)
list(FIND __allowedArchs "${arch}" _allowedArchIdx)
if(_allowedArchIdx LESS 0)
set("${retVarName}" NO PARENT_SCOPE)
else()
set("${retVarName}" YES PARENT_SCOPE)
endif()
endfunction()
# Normalizes architecture name. If architecture is not supported by helper functions
# the "Unknown-NOTFOUND" will be returned.
#
# Currently supports: Windows32, Windows64, WindowsARM, Android32, Android64, AndroidMIPS, AndroidARM,
# Linux32, Linux64, LinuxMIPS, LinuxARM
#
# @param retValName Name of variable placeholder where result will be returned.
# @param arch Architecture name to normalize / filter.
function(igc_arch_normalize retVarName arch)
string(TOLOWER "${arch}" _arch)
string(STRIP "${_arch}" _arch)
if(_arch MATCHES "^win")
set(_osPart "Windows")
elseif(_arch MATCHES "^and")
set(_osPart "Android")
elseif(_arch MATCHES "^lin")
set(_osPart "Linux")
else()
set(_osPart "Windows")
endif()
if(_arch MATCHES "64$")
set(_cpuPart "64")
elseif(_arch MATCHES "(32|86)$")
set(_cpuPart "32")
elseif(_arch MATCHES "mips^")
set(_cpuPart "MIPS")
elseif(_arch MATCHES "arm|aarch64")
set(_cpuPart "ARM")
else()
set("${retVarName}" "Unknown-NOTFOUND" PARENT_SCOPE)
return()
endif()
set(_normalizedArch "${_osPart}${_cpuPart}")
igc_arch_validate(_archValid "${_normalizedArch}")
if(_archValid)
set("${retVarName}" "${_normalizedArch}" PARENT_SCOPE)
else()
set("${retVarName}" "Unknown-NOTFOUND" PARENT_SCOPE)
endif()
endfunction()
# Gets OS platform used in specified architecture. If it cannot be determined
# the "Unknown-NOTFOUND" will be returned.
#
# @param retValName Name of variable placeholder where result will be returned.
# @param arch Architecture name to get info from.
function(igc_arch_get_os retVarName arch)
set(_os_detect_list "^(Windows|Android|Linux)(.*)$")
if(arch MATCHES "${_os_detect_list}")
set("${retVarName}" "${CMAKE_MATCH_1}" PARENT_SCOPE)
else()
set("${retVarName}" "Unknown-NOTFOUND" PARENT_SCOPE)
endif()
endfunction()
function(igc_arch_get_cpu retVarName)
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
set("${retVarName}" "64" PARENT_SCOPE)
else()
set("${retVarName}" "32" PARENT_SCOPE)
endif()
endfunction()
# Determines whether cross-compilation is needed.
#
# @param retValName Name of variable placeholder where result will be returned.
# @param targetArch Target architecture (it will be normalized).
# @param hostArch Host architecture (it will be normalized).
function(igc_arch_crosscompile_needed retVarName targetArch hostArch)
# Allowed cross-executions (keys list, lists for each key).
# Key: host architecture.
# Values: target architecture that can be run on host (different than host).
set(__allowedCrossExecution "Windows64")
set(__allowedCrossExecution_Windows64 "Windows32")
igc_arch_normalize(_targetArch "${targetArch}")
igc_arch_normalize(_hostArch "${hostArch}")
if(_targetArch STREQUAL _hostArch)
set("${retVarName}" NO PARENT_SCOPE)
else()
list(FIND __allowedCrossExecution "${_hostArch}" _keyIdx)
if(_keyIdx LESS 0)
set("${retVarName}" YES PARENT_SCOPE)
else()
list(FIND "__allowedCrossExecution_${_hostArch}" "${_targetArch}" _valIdx)
if(_valIdx LESS 0)
set("${retVarName}" YES PARENT_SCOPE)
else()
set("${retVarName}" NO PARENT_SCOPE)
endif()
endif()
endif()
endfunction()
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