Files
pcem/cmake/arch-detect.cmake
2024-06-21 18:20:49 -07:00

114 lines
3.7 KiB
CMake

set(archdetect_c_code "
#if defined(__arm__) || defined(__TARGET_ARCH_ARM)
#if defined(__ARM_ARCH_8__) \\
|| defined(__ARM_ARCH_8A__) \\
|| (defined(__ARM_ARCH) && __ARM_ARCH >= 8) \\
|| (defined(__TARGET_ARCH_ARM) && __TARGET_ARCH_ARM-0 >= 8)
#error cmake_ARCH armv8
#elif defined(__ARM_ARCH_7__) \\
|| defined(__ARM_ARCH_7A__) \\
|| defined(__ARM_ARCH_7R__) \\
|| defined(__ARM_ARCH_7M__) \\
|| (defined(__ARM_ARCH) && __ARM_ARCH >= 7) \\
|| (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(__ARM_ARCH) && __ARM_ARCH >= 6) \\
|| (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
#elif defined(__aarch64__) || defined(_M_ARM64)
#error cmake_ARCH arm64
#endif
#error cmake_ARCH unknown
")
function(target_architecture output_var)
if(APPLE AND CMAKE_OSX_ARCHITECTURES)
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("${osx_arch}" STREQUAL "ppc64" AND ppc_support)
set(osx_arch_ppc64 TRUE)
elseif("${osx_arch}" STREQUAL "arm64")
set(osx_arch_arm64 TRUE)
else()
message(FATAL_ERROR "Invalid OS X arch name: ${osx_arch}")
endif()
endforeach()
if(osx_arch_ppc)
list(APPEND ARCH ppc)
endif()
if(osx_arch_i386)
list(APPEND ARCH i386)
endif()
if(osx_arch_x86_64)
list(APPEND ARCH x86_64)
endif()
if(osx_arch_ppc64)
list(APPEND ARCH ppc64)
endif()
if(osx_arch_arm64)
list(APPEND ARCH arm64)
endif()
else()
file(WRITE "${CMAKE_BINARY_DIR}/arch.c" "${archdetect_c_code}")
enable_language(C)
try_run(
run_result_unused
compile_result_unused
"${CMAKE_BINARY_DIR}"
"${CMAKE_BINARY_DIR}/arch.c"
COMPILE_OUTPUT_VARIABLE ARCH
CMAKE_FLAGS CMAKE_OSX_ARCHITECTURES=${CMAKE_OSX_ARCHITECTURES}
)
string(REGEX MATCH "cmake_ARCH ([a-zA-Z0-9_]+)" ARCH "${ARCH}")
string(REPLACE "cmake_ARCH " "" ARCH "${ARCH}")
if (NOT ARCH)
set(ARCH unknown)
endif()
endif()
set(${output_var} "${ARCH}" PARENT_SCOPE)
endfunction()