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# Copyright (c) 2012 Petroules Corporation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer. Redistributions in binary
# form must reproduce the above copyright notice, this list of conditions and
# the following disclaimer in the documentation and/or other materials
# provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Modified for ignition libraries - 2017
# Based on the Qt 5 processor detection code, so should be very accurate
# https://qt.gitorious.org/qt/qtbase/blobs/master/src/corelib/global/qprocessordetection.h
# Currently handles arm (v5, v6, v7), x86 (32/64), ia64, and ppc (32/64)
# Regarding POWER/PowerPC, just as is noted in the Qt source,
# "There are many more known variants/revisions that we do not handle/detect."
set(archdetect_c_code "
#if defined(__arm__) || defined(__TARGET_ARCH_ARM)
#if defined(__ARM_ARCH_7__) \\
|| defined(__ARM_ARCH_7A__) \\
|| defined(__ARM_ARCH_7R__) \\
|| defined(__ARM_ARCH_7M__) \\
|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 7)
#error cmake_ARCH armv7
#elif defined(__ARM_ARCH_6__) \\
|| defined(__ARM_ARCH_6J__) \\
|| defined(__ARM_ARCH_6T2__) \\
|| defined(__ARM_ARCH_6Z__) \\
|| defined(__ARM_ARCH_6K__) \\
|| defined(__ARM_ARCH_6ZK__) \\
|| defined(__ARM_ARCH_6M__) \\
|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 6)
#error cmake_ARCH armv6
#elif defined(__ARM_ARCH_5TEJ__) \\
|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 5)
#error cmake_ARCH armv5
#else
#error cmake_ARCH arm
#endif
#elif defined(__i386) || defined(__i386__) || defined(_M_IX86)
#error cmake_ARCH i386
#elif defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(_M_X64)
#error cmake_ARCH x86_64
#elif defined(__ia64) || defined(__ia64__) || defined(_M_IA64)
#error cmake_ARCH ia64
#elif defined(__ppc__) || defined(__ppc) || defined(__powerpc__) \\
|| defined(_ARCH_COM) || defined(_ARCH_PWR) || defined(_ARCH_PPC) \\
|| defined(_M_MPPC) || defined(_M_PPC)
#if defined(__ppc64__) || defined(__powerpc64__) || defined(__64BIT__)
#error cmake_ARCH ppc64
#else
#error cmake_ARCH ppc
#endif
#endif
#error cmake_ARCH unknown
")
# Set ppc_support to TRUE before including this file or ppc and ppc64
# will be treated as invalid architectures since they are no longer supported by Apple
if(APPLE AND CMAKE_OSX_ARCHITECTURES)
# On OS X we use CMAKE_OSX_ARCHITECTURES *if* it was set
# First let's normalize the order of the values
# Note that it's not possible to compile PowerPC applications if you are using
# the OS X SDK version 10.6 or later - you'll need 10.4/10.5 for that, so we
# disable it by default
# See this page for more information:
# http://stackoverflow.com/questions/5333490/how-can-we-restore-ppc-ppc64-as-well-as-full-10-4-10-5-sdk-support-to-xcode-4
# Architecture defaults to i386 or ppc on OS X 10.5 and earlier, depending on the CPU type detected at runtime.
# On OS X 10.6+ the default is x86_64 if the CPU supports it, i386 otherwise.
foreach(osx_arch ${CMAKE_OSX_ARCHITECTURES})
if("${osx_arch}" STREQUAL "ppc" AND ppc_support)
set(osx_arch_ppc TRUE)
elseif("${osx_arch}" STREQUAL "i386")
set(osx_arch_i386 TRUE)
elseif("${osx_arch}" STREQUAL "x86_64")
set(osx_arch_x86_64 TRUE)
elseif("${osx_arch}" STREQUAL "ppc64" AND ppc_support)
set(osx_arch_ppc64 TRUE)
else()
message(FATAL_ERROR "Invalid OS X arch name: ${osx_arch}")
endif()
endforeach()
# Now add all the architectures in our normalized order
if(osx_arch_ppc)
list(APPEND ARCH ppc)
endif()
if(osx_arch_i386)
list(APPEND ARCH i386)
endif()
if(osx_arch_x86_64)
list(APPEND ARCH x86_64)
endif()
if(osx_arch_ppc64)
list(APPEND ARCH ppc64)
endif()
else()
file(WRITE "${CMAKE_BINARY_DIR}/arch.c" "${archdetect_c_code}")
enable_language(C)
# Detect the architecture in a rather creative way...
# This compiles a small C program which is a series of ifdefs that selects a
# particular #error preprocessor directive whose message string contains the
# target architecture. The program will always fail to compile (both because
# file is not a valid C program, and obviously because of the presence of the
# #error preprocessor directives... but by exploiting the preprocessor in this
# way, we can detect the correct target architecture even when cross-compiling,
# since the program itself never needs to be run (only the compiler/preprocessor)
try_run(
run_result_unused
compile_result_unused
"${CMAKE_BINARY_DIR}"
"${CMAKE_BINARY_DIR}/arch.c"
COMPILE_OUTPUT_VARIABLE ARCH
CMAKE_FLAGS CMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}
)
# Parse the architecture name from the compiler output
string(REGEX MATCH "cmake_ARCH ([a-zA-Z0-9_]+)" ARCH "${ARCH}")
# Get rid of the value marker leaving just the architecture name
string(REPLACE "cmake_ARCH " "" ARCH "${ARCH}")
# If we are compiling with an unknown architecture this variable should
# already be set to "unknown" but in the case that it's empty (i.e. due
# to a typo in the code), then set it to unknown
if (NOT ARCH)
set(ARCH unknown)
endif()
endif()
# Check if SSE instructions are available on the machine where
# the project is compiled.
IF (ARCH MATCHES "i386" OR ARCH MATCHES "x86_64")
IF(CMAKE_SYSTEM_NAME MATCHES "Linux")
EXEC_PROGRAM(cat ARGS "/proc/cpuinfo" OUTPUT_VARIABLE CPUINFO)
STRING(REGEX REPLACE "^.*(sse2).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "sse2" "${SSE_THERE}" SSE2_TRUE)
IF (SSE2_TRUE)
set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
ELSE (SSE2_TRUE)
set(SSE2_FOUND false CACHE BOOL "SSE2 available on host")
ENDIF (SSE2_TRUE)
# /proc/cpuinfo apparently omits sse3 :(
STRING(REGEX REPLACE "^.*[^s](sse3).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "sse3" "${SSE_THERE}" SSE3_TRUE)
IF (NOT SSE3_TRUE)
STRING(REGEX REPLACE "^.*(T2300).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "T2300" "${SSE_THERE}" SSE3_TRUE)
ENDIF (NOT SSE3_TRUE)
STRING(REGEX REPLACE "^.*(ssse3).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "ssse3" "${SSE_THERE}" SSSE3_TRUE)
IF (SSE3_TRUE OR SSSE3_TRUE)
set(SSE3_FOUND true CACHE BOOL "SSE3 available on host")
ELSE (SSE3_TRUE OR SSSE3_TRUE)
set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
ENDIF (SSE3_TRUE OR SSSE3_TRUE)
IF (SSSE3_TRUE)
set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host")
ELSE (SSSE3_TRUE)
set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
ENDIF (SSSE3_TRUE)
STRING(REGEX REPLACE "^.*(sse4_1).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "sse4_1" "${SSE_THERE}" SSE41_TRUE)
IF (SSE41_TRUE)
set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host")
ELSE (SSE41_TRUE)
set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
ENDIF (SSE41_TRUE)
STRING(REGEX REPLACE "^.*(sse4_2).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "sse4_2" "${SSE_THERE}" SSE42_TRUE)
IF (SSE42_TRUE)
set(SSE4_2_FOUND true CACHE BOOL "SSE4.2 available on host")
ELSE (SSE42_TRUE)
set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
ENDIF (SSE42_TRUE)
ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Darwin")
EXEC_PROGRAM("/usr/sbin/sysctl -n machdep.cpu.features" OUTPUT_VARIABLE
CPUINFO)
STRING(REGEX REPLACE "^.*[^S](SSE2).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "SSE2" "${SSE_THERE}" SSE2_TRUE)
IF (SSE2_TRUE)
set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
ELSE (SSE2_TRUE)
set(SSE2_FOUND false CACHE BOOL "SSE2 available on host")
ENDIF (SSE2_TRUE)
STRING(REGEX REPLACE "^.*[^S](SSE3).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "SSE3" "${SSE_THERE}" SSE3_TRUE)
IF (SSE3_TRUE)
set(SSE3_FOUND true CACHE BOOL "SSE3 available on host")
ELSE (SSE3_TRUE)
set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
ENDIF (SSE3_TRUE)
STRING(REGEX REPLACE "^.*(SSSE3).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "SSSE3" "${SSE_THERE}" SSSE3_TRUE)
IF (SSSE3_TRUE)
set(SSSE3_FOUND true CACHE BOOL "SSSE3 available on host")
ELSE (SSSE3_TRUE)
set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
ENDIF (SSSE3_TRUE)
STRING(REGEX REPLACE "^.*(SSE4.1).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "SSE4.1" "${SSE_THERE}" SSE41_TRUE)
IF (SSE41_TRUE)
set(SSE4_1_FOUND true CACHE BOOL "SSE4.1 available on host")
ELSE (SSE41_TRUE)
set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
ENDIF (SSE41_TRUE)
STRING(REGEX REPLACE "^.*(SSE4.2).*$" "\\1" SSE_THERE ${CPUINFO})
STRING(COMPARE EQUAL "SSE4.2" "${SSE_THERE}" SSE42_TRUE)
IF (SSE42_TRUE)
set(SSE4_2_FOUND true CACHE BOOL "SSE4.2 available on host")
ELSE (SSE42_TRUE)
set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
ENDIF (SSE42_TRUE)
ELSEIF(CMAKE_SYSTEM_NAME MATCHES "Windows")
# TODO
set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
ELSE(CMAKE_SYSTEM_NAME MATCHES "Linux")
set(SSE2_FOUND true CACHE BOOL "SSE2 available on host")
set(SSE3_FOUND false CACHE BOOL "SSE3 available on host")
set(SSSE3_FOUND false CACHE BOOL "SSSE3 available on host")
set(SSE4_1_FOUND false CACHE BOOL "SSE4.1 available on host")
set(SSE4_2_FOUND false CACHE BOOL "SSE4.2 available on host")
ENDIF(CMAKE_SYSTEM_NAME MATCHES "Linux")
ENDIF(ARCH MATCHES "i386" OR ARCH MATCHES "x86_64")
if(NOT SSE2_FOUND)
MESSAGE(STATUS "Could not find hardware support for SSE2 on this machine.")
endif(NOT SSE2_FOUND)
if(NOT SSE3_FOUND)
MESSAGE(STATUS "Could not find hardware support for SSE3 on this machine.")
endif(NOT SSE3_FOUND)
if(NOT SSSE3_FOUND)
MESSAGE(STATUS "Could not find hardware support for SSSE3 on this machine.")
endif(NOT SSSE3_FOUND)
if(NOT SSE4_1_FOUND)
MESSAGE(STATUS "Could not find hardware support for SSE4.1 on this machine.")
endif(NOT SSE4_1_FOUND)
if(NOT SSE4_2_FOUND)
MESSAGE(STATUS "Could not find hardware support for SSE4.2 on this machine.")
endif(NOT SSE4_2_FOUND)
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