159 lines
6.7 KiB
CMake
159 lines
6.7 KiB
CMake
|
# 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.
|
||
|
|
|
||
|
|
# 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
|
||
|
|
|
||
|
|
function(target_architecture output_var)
|
||
|
|
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()
|
||
|
|
|
||
|
|
set(${output_var} "${ARCH}" PARENT_SCOPE)
|
||
|
|
endfunction()
|