# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
# When CMAKE_SYSTEM_NAME is "Android", CMakeDetermineSystem loads this module.
# This module detects platform-wide information about the Android target
# in order to store it in "CMakeSystem.cmake".
# Include the NDK hook.
# It can be used by NDK to inject necessary fixes for an earlier cmake.
if(CMAKE_ANDROID_NDK)
include(${CMAKE_ANDROID_NDK}/build/cmake/hooks/pre/Android-Determine.cmake OPTIONAL)
endif()
# Support for NVIDIA Nsight Tegra Visual Studio Edition was previously
# implemented in the CMake VS IDE generators. Avoid interfering with
# that functionality for now.
if(CMAKE_GENERATOR_PLATFORM STREQUAL "Tegra-Android")
return()
endif()
# Commonly used Android toolchain files that pre-date CMake upstream support
# set CMAKE_SYSTEM_VERSION to 1. Avoid interfering with them.
if(CMAKE_SYSTEM_VERSION EQUAL 1)
return()
endif()
# Natively compiling on an Android host doesn't use the NDK cross-compilation
# tools.
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Android")
return()
endif()
cmake_policy(PUSH)
cmake_policy(SET CMP0057 NEW) # if IN_LIST
# If using Android tools for Visual Studio, compile a sample project to get the
# sysroot.
if(CMAKE_GENERATOR MATCHES "Visual Studio")
if(NOT CMAKE_SYSROOT)
set(vcx_platform ${CMAKE_GENERATOR_PLATFORM})
if(CMAKE_GENERATOR MATCHES "Visual Studio 1[45]")
set(vcx_sysroot_var "Sysroot")
else()
set(vcx_sysroot_var "SysrootLink")
endif()
if(CMAKE_GENERATOR MATCHES "Visual Studio 14")
set(vcx_revision "2.0")
elseif(CMAKE_GENERATOR MATCHES "Visual Studio 1[56]")
set(vcx_revision "3.0")
else()
set(vcx_revision "")
endif()
configure_file(${CMAKE_ROOT}/Modules/Platform/Android/VCXProjInspect.vcxproj.in
${CMAKE_PLATFORM_INFO_DIR}/VCXProjInspect.vcxproj @ONLY)
cmake_host_system_information(RESULT _msbuild QUERY VS_MSBUILD_COMMAND) # undocumented query
execute_process(
COMMAND "${_msbuild}" "VCXProjInspect.vcxproj"
"/p:Configuration=Debug" "/p:Platform=${vcx_platform}"
WORKING_DIRECTORY ${CMAKE_PLATFORM_INFO_DIR}
OUTPUT_VARIABLE VCXPROJ_INSPECT_OUTPUT
ERROR_VARIABLE VCXPROJ_INSPECT_OUTPUT
RESULT_VARIABLE VCXPROJ_INSPECT_RESULT
)
unset(_msbuild)
if(NOT CMAKE_SYSROOT AND VCXPROJ_INSPECT_OUTPUT MATCHES "CMAKE_SYSROOT=([^%\r\n]+)[\r\n]")
# Strip VS diagnostic output from the end of the line.
string(REGEX REPLACE " \\(TaskId:[0-9]*\\)$" "" _sysroot "${CMAKE_MATCH_1}")
if(EXISTS "${_sysroot}")
file(TO_CMAKE_PATH "${_sysroot}" CMAKE_SYSROOT)
endif()
endif()
if(VCXPROJ_INSPECT_RESULT)
message(CONFIGURE_LOG
"Determining the sysroot for the Android NDK failed.
The output was:
${VCXPROJ_INSPECT_RESULT}
${VCXPROJ_INSPECT_OUTPUT}
")
else()
message(CONFIGURE_LOG
"Determining the sysroot for the Android NDK succeeded.
The output was:
${VCXPROJ_INSPECT_RESULT}
${VCXPROJ_INSPECT_OUTPUT}
")
endif()
endif()
if(NOT CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION)
set(CMAKE_ANDROID_NDK_TOOLCHAIN_VERSION "clang")
endif()
endif()
# If the user provided CMAKE_SYSROOT for us, extract information from it.
set(_ANDROID_SYSROOT_NDK "")
set(_ANDROID_SYSROOT_API "")
set(_ANDROID_SYSROOT_ARCH "")
set(_ANDROID_SYSROOT_STANDALONE_TOOLCHAIN "")
if(CMAKE_SYSROOT)
if(NOT IS_DIRECTORY "${CMAKE_SYSROOT}")
message(FATAL_ERROR
"Android: The specified CMAKE_SYSROOT:\n"
" ${CMAKE_SYSROOT}\n"
"is not an existing directory."
)
endif()
if(CMAKE_SYSROOT MATCHES "^([^\\\n]*)/platforms/android-([0-9]+)/arch-([a-z0-9_]+)$")
set(_ANDROID_SYSROOT_NDK "${CMAKE_MATCH_1}")
set(_ANDROID_SYSROOT_API "${CMAKE_MATCH_2}")
set(_ANDROID_SYSROOT_ARCH "${CMAKE_MATCH_3}")
elseif(CMAKE_SYSROOT MATCHES "^([^\\\n]*)/sysroot$")
set(_ANDROID_SYSROOT_STANDALONE_TOOLCHAIN "${CMAKE_MATCH_1}")
else()
message(FATAL_ERROR
"The value of CMAKE_SYSROOT:\n"
" ${CMAKE_SYSROOT}\n"
"does not match any of the forms:\n"
" <ndk>/platforms/android-<api>/arch-<arch>\n"
" <standalone-toolchain>/sysroot\n"
"where:\n"
" <ndk> = Android NDK directory (with forward slashes)\n"
" <api> = Android API version number (decimal digits)\n"
" <arch> = Android ARCH name (lower case)\n"
" <standalone-toolchain> = Path to standalone toolchain prefix\n"
)
endif()
endif()
# Find the Android NDK.
if(CMAKE_ANDROID_NDK)
if(NOT IS_DIRECTORY "${CMAKE_ANDROID_NDK}")
message(FATAL_ERROR
"Android: The NDK root directory specified by CMAKE_ANDROID_NDK:\n"
" ${CMAKE_ANDROID_NDK}\n"
"does not exist."
)
endif()
elseif(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
if(NOT IS_DIRECTORY "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}")
message(FATAL_ERROR
"Android: The standalone toolchain directory specified by CMAKE_ANDROID_STANDALONE_TOOLCHAIN:\n"
" ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}\n"
"does not exist."
)
endif()
if(NOT EXISTS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h")
message(FATAL_ERROR
"Android: The standalone toolchain directory specified by CMAKE_ANDROID_STANDALONE_TOOLCHAIN:\n"
" ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}\n"
"does not contain a sysroot with a known layout. The file:\n"
" ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h\n"
"does not exist."
)
endif()
else()
if(IS_DIRECTORY "${_ANDROID_SYSROOT_NDK}")
set(CMAKE_ANDROID_NDK "${_ANDROID_SYSROOT_NDK}")
elseif(IS_DIRECTORY "${_ANDROID_SYSROOT_STANDALONE_TOOLCHAIN}")
set(CMAKE_ANDROID_STANDALONE_TOOLCHAIN "${_ANDROID_SYSROOT_STANDALONE_TOOLCHAIN}")
elseif(IS_DIRECTORY "${ANDROID_NDK}")
file(TO_CMAKE_PATH "${ANDROID_NDK}" CMAKE_ANDROID_NDK)
elseif(IS_DIRECTORY "${ANDROID_STANDALONE_TOOLCHAIN}")
file(TO_CMAKE_PATH "${ANDROID_STANDALONE_TOOLCHAIN}" CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
elseif(IS_DIRECTORY "$ENV{ANDROID_NDK_ROOT}")
file(TO_CMAKE_PATH "$ENV{ANDROID_NDK_ROOT}" CMAKE_ANDROID_NDK)
elseif(IS_DIRECTORY "$ENV{ANDROID_NDK}")
file(TO_CMAKE_PATH "$ENV{ANDROID_NDK}" CMAKE_ANDROID_NDK)
elseif(IS_DIRECTORY "$ENV{ANDROID_STANDALONE_TOOLCHAIN}")
file(TO_CMAKE_PATH "$ENV{ANDROID_STANDALONE_TOOLCHAIN}" CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
endif()
# TODO: Search harder for the NDK or standalone toolchain.
endif()
set(_ANDROID_STANDALONE_TOOLCHAIN_API "")
if(CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
# Try to read the API level from the toolchain launcher.
if(EXISTS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang")
set(_ANDROID_API_LEVEL_CLANG_REGEX "__ANDROID_API__=([0-9]+)")
file(STRINGS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang" _ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG
REGEX "${_ANDROID_API_LEVEL_CLANG_REGEX}" LIMIT_COUNT 1 LIMIT_INPUT 65536)
if(_ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG MATCHES "${_ANDROID_API_LEVEL_CLANG_REGEX}")
set(_ANDROID_STANDALONE_TOOLCHAIN_API "${CMAKE_MATCH_1}")
endif()
unset(_ANDROID_STANDALONE_TOOLCHAIN_BIN_CLANG)
unset(_ANDROID_API_LEVEL_CLANG_REGEX)
endif()
if(NOT _ANDROID_STANDALONE_TOOLCHAIN_API)
# The compiler launcher does not know __ANDROID_API__. Assume this
# is not unified headers and look for it in the api-level.h header.
set(_ANDROID_API_LEVEL_H_REGEX "^[\t ]*#[\t ]*define[\t ]+__ANDROID_API__[\t ]+([0-9]+)")
file(STRINGS "${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h"
_ANDROID_API_LEVEL_H_CONTENT REGEX "${_ANDROID_API_LEVEL_H_REGEX}")
if(_ANDROID_API_LEVEL_H_CONTENT MATCHES "${_ANDROID_API_LEVEL_H_REGEX}")
set(_ANDROID_STANDALONE_TOOLCHAIN_API "${CMAKE_MATCH_1}")
endif()
endif()
if(NOT _ANDROID_STANDALONE_TOOLCHAIN_API)
message(WARNING
"Android: Did not detect API level from\n"
" ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/bin/clang\n"
"or\n"
" ${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h\n"
)
endif()
endif()
if(NOT CMAKE_ANDROID_NDK AND NOT CMAKE_ANDROID_STANDALONE_TOOLCHAIN)
message(FATAL_ERROR "Android: Neither the NDK or a standalone toolchain was found.")
endif()
if(CMAKE_ANDROID_NDK)
# NDK >= 18 has platforms.cmake. It provides:
# NDK_MIN_PLATFORM_LEVEL
# NDK_MAX_PLATFORM_LEVEL
include("${CMAKE_ANDROID_NDK}/build/cmake/platforms.cmake" OPTIONAL RESULT_VARIABLE _INCLUDED_PLATFORMS)
# NDK >= 18 has abis.cmake. It provides:
# NDK_KNOWN_DEVICE_ABI32S
# NDK_KNOWN_DEVICE_ABI64S
# NDK >= 23 also provides:
# NDK_KNOWN_DEVICE_ABIS
# NDK_ABI_<abi>_PROC
# NDK_ABI_<abi>_ARCH
# NDK_ABI_<abi>_TRIPLE
# NDK_ABI_<abi>_LLVM_TRIPLE
# NDK_PROC_<processor>_ABI
# NDK_ARCH_<arch>_ABI
include("${CMAKE_ANDROID_NDK}/build/cmake/abis.cmake" OPTIONAL RESULT_VARIABLE _INCLUDED_ABIS)
endif()
if(CMAKE_ANDROID_NDK AND EXISTS "${CMAKE_ANDROID_NDK}/source.properties")
# Android NDK revision
# Possible formats:
# * r16, build 1234: 16.0.1234
# * r16b, build 1234: 16.1.1234
# * r16 beta 1, build 1234: 16.0.1234-beta1
#
# Canary builds are not specially marked.
file(READ "${CMAKE_ANDROID_NDK}/source.properties" _ANDROID_NDK_SOURCE_PROPERTIES)
set(_ANDROID_NDK_REVISION_REGEX
"^Pkg\\.Desc = Android NDK\nPkg\\.Revision = ([0-9]+)\\.([0-9]+)\\.([0-9]+)(-beta([0-9]+))?")
if(NOT _ANDROID_NDK_SOURCE_PROPERTIES MATCHES "${_ANDROID_NDK_REVISION_REGEX}")
string(REPLACE "\n" "\n " _ANDROID_NDK_SOURCE_PROPERTIES "${_ANDROID_NDK_SOURCE_PROPERTIES}")
message(FATAL_ERROR
"Android: Failed to parse NDK revision from:\n"
" ${CMAKE_ANDROID_NDK}/source.properties\n"
"with content:\n"
" ${_ANDROID_NDK_SOURCE_PROPERTIES}")
endif()
set(_ANDROID_NDK_MAJOR "${CMAKE_MATCH_1}")
set(_ANDROID_NDK_MINOR "${CMAKE_MATCH_2}")
set(_ANDROID_NDK_BUILD "${CMAKE_MATCH_3}")
set(_ANDROID_NDK_BETA "${CMAKE_MATCH_5}")
if(_ANDROID_NDK_BETA STREQUAL "")
set(_ANDROID_NDK_BETA "0")
endif()
set(CMAKE_ANDROID_NDK_VERSION "${_ANDROID_NDK_MAJOR}.${_ANDROID_NDK_MINOR}")
unset(_ANDROID_NDK_SOURCE_PROPERTIES)
unset(_ANDROID_NDK_REVISION_REGEX)
unset(_ANDROID_NDK_MAJOR)
unset(_ANDROID_NDK_MINOR)
unset(_ANDROID_NDK_BUILD)
unset(_ANDROID_NDK_BETA)
endif()
if(CMAKE_ANDROID_NDK)
# Identify the host platform.
if(CMAKE_HOST_SYSTEM_NAME STREQUAL "Darwin")
if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "64")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "darwin-x86_64")
else()
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "darwin-x86")
endif()
elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Linux")
if(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "x86_64")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "linux-x86_64")
else()
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "linux-x86")
endif()
elseif(CMAKE_HOST_SYSTEM_NAME STREQUAL "Windows")
if(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "AMD64")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "windows-x86_64")
else()
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "windows")
endif()
else()
message(FATAL_ERROR "Android: Builds hosted on '${CMAKE_HOST_SYSTEM_NAME}' not supported.")
endif()
# Look for a unified toolchain/sysroot provided with the NDK.
set(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED "${CMAKE_ANDROID_NDK}/toolchains/llvm/prebuilt/${CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG}")
if(NOT IS_DIRECTORY "${CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED}/sysroot")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED "")
endif()
else()
set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG "")
set(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED "")
endif()
if(_INCLUDED_ABIS)
if(NDK_KNOWN_DEVICE_ABIS)
set(_ANDROID_KNOWN_ABIS ${NDK_KNOWN_DEVICE_ABIS})
else()
set(_ANDROID_KNOWN_ABIS ${NDK_KNOWN_DEVICE_ABI32S} ${NDK_KNOWN_DEVICE_ABI64S})
endif()
endif()
if(NOT DEFINED NDK_KNOWN_DEVICE_ABIS)
# The NDK is not new enough to provide ABI information.
# https://developer.android.com/ndk/guides/abis.html
set(NDK_ABI_arm64-v8a_PROC "aarch64")
set(NDK_ABI_arm64-v8a_ARCH "arm64")
set(NDK_ABI_arm64-v8a_TRIPLE "aarch64-linux-android")
set(NDK_ABI_arm64-v8a_LLVM_TRIPLE "aarch64-none-linux-android")
set(NDK_ABI_armeabi-v7a_PROC "armv7-a")
set(NDK_ABI_armeabi-v7a_ARCH "arm")
set(NDK_ABI_armeabi-v7a_TRIPLE "arm-linux-androideabi")
set(NDK_ABI_armeabi-v7a_LLVM_TRIPLE "armv7-none-linux-androideabi")
set(NDK_ABI_armeabi-v6_PROC "armv6")
set(NDK_ABI_armeabi-v6_ARCH "arm")
set(NDK_ABI_armeabi-v6_TRIPLE "arm-linux-androideabi")
set(NDK_ABI_armeabi-v6_LLVM_TRIPLE "armv6-none-linux-androideabi")
set(NDK_ABI_armeabi_PROC "armv5te")
set(NDK_ABI_armeabi_ARCH "arm")
set(NDK_ABI_armeabi_TRIPLE "arm-linux-androideabi")
set(NDK_ABI_armeabi_LLVM_TRIPLE "armv5te-none-linux-androideabi")
set(NDK_ABI_mips_PROC "mips")
set(NDK_ABI_mips_ARCH "mips")
set(NDK_ABI_mips_TRIPLE "mipsel-linux-android")
set(NDK_ABI_mips_LLVM_TRIPLE "mipsel-none-linux-android")
set(NDK_ABI_mips64_PROC "mips64")
set(NDK_ABI_mips64_ARCH "mips64")
set(NDK_ABI_mips64_TRIPLE "mips64el-linux-android")
set(NDK_ABI_mips64_LLVM_TRIPLE "mips64el-none-linux-android")
set(NDK_ABI_x86_PROC "i686")
set(NDK_ABI_x86_ARCH "x86")
set(NDK_ABI_x86_TRIPLE "i686-linux-android")
set(NDK_ABI_x86_LLVM_TRIPLE "i686-none-linux-android")
set(NDK_ABI_x86_64_PROC "x86_64")
set(NDK_ABI_x86_64_ARCH "x86_64")
set(NDK_ABI_x86_64_TRIPLE "x86_64-linux-android")
set(NDK_ABI_x86_64_LLVM_TRIPLE "x86_64-none-linux-android")
set(NDK_PROC_aarch64_ABI "arm64-v8a")
set(NDK_PROC_armv7-a_ABI "armeabi-v7a")
set(NDK_PROC_armv6_ABI "armeabi-v6")
set(NDK_PROC_armv5te_ABI "armeabi")
set(NDK_PROC_i686_ABI "x86")
set(NDK_PROC_mips_ABI "mips")
set(NDK_PROC_mips64_ABI "mips64")
set(NDK_PROC_x86_64_ABI "x86_64")
set(NDK_ARCH_arm64_ABI "arm64-v8a")
set(NDK_ARCH_arm_ABI "armeabi")
set(NDK_ARCH_mips_ABI "mips")
set(NDK_ARCH_mips64_ABI "mips64")
set(NDK_ARCH_x86_ABI "x86")
set(NDK_ARCH_x86_64_ABI "x86_64")
endif()
# Validate inputs.
if(CMAKE_ANDROID_ARCH_ABI AND NOT DEFINED "NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC")
message(FATAL_ERROR "Android: Unknown ABI CMAKE_ANDROID_ARCH_ABI='${CMAKE_ANDROID_ARCH_ABI}'.")
endif()
if(CMAKE_SYSTEM_PROCESSOR AND NOT DEFINED "NDK_PROC_${CMAKE_SYSTEM_PROCESSOR}_ABI")
message(FATAL_ERROR "Android: Unknown processor CMAKE_SYSTEM_PROCESSOR='${CMAKE_SYSTEM_PROCESSOR}'.")
endif()
if(_ANDROID_SYSROOT_ARCH AND NOT DEFINED "NDK_ARCH_${_ANDROID_SYSROOT_ARCH}_ABI")
message(FATAL_ERROR
"Android: Unknown architecture '${_ANDROID_SYSROOT_ARCH}' specified in CMAKE_SYSROOT:\n"
" ${CMAKE_SYSROOT}"
)
endif()
# Select an ABI.
if(NOT CMAKE_ANDROID_ARCH_ABI)
if(CMAKE_SYSTEM_PROCESSOR)
set(CMAKE_ANDROID_ARCH_ABI "${NDK_PROC_${CMAKE_SYSTEM_PROCESSOR}_ABI}")
elseif(_ANDROID_SYSROOT_ARCH)
set(CMAKE_ANDROID_ARCH_ABI "${NDK_ARCH_${_ANDROID_SYSROOT_ARCH}_ABI}")
elseif(_INCLUDED_ABIS)
# Default to the oldest ARM ABI.
foreach(abi armeabi armeabi-v7a arm64-v8a)
if("${abi}" IN_LIST _ANDROID_KNOWN_ABIS)
set(CMAKE_ANDROID_ARCH_ABI "${abi}")
break()
endif()
endforeach()
if(NOT CMAKE_ANDROID_ARCH_ABI)
message(FATAL_ERROR
"Android: Can not determine the default ABI. Please set CMAKE_ANDROID_ARCH_ABI."
)
endif()
else()
# https://developer.android.com/ndk/guides/application_mk.html
# Default is the oldest ARM ABI.
# Lookup the available ABIs among all toolchains.
set(_ANDROID_ABIS "")
file(GLOB _ANDROID_CONFIG_MKS
"${CMAKE_ANDROID_NDK}/build/core/toolchains/*/config.mk"
"${CMAKE_ANDROID_NDK}/toolchains/*/config.mk"
)
foreach(config_mk IN LISTS _ANDROID_CONFIG_MKS)
file(STRINGS "${config_mk}" _ANDROID_TOOL_ABIS REGEX "^TOOLCHAIN_ABIS :=")
string(REPLACE "TOOLCHAIN_ABIS :=" "" _ANDROID_TOOL_ABIS "${_ANDROID_TOOL_ABIS}")
separate_arguments(_ANDROID_TOOL_ABIS UNIX_COMMAND "${_ANDROID_TOOL_ABIS}")
list(APPEND _ANDROID_ABIS ${_ANDROID_TOOL_ABIS})
unset(_ANDROID_TOOL_ABIS)
endforeach()
unset(_ANDROID_CONFIG_MKS)
# Choose the oldest among the available arm ABIs.
if(_ANDROID_ABIS)
list(REMOVE_DUPLICATES _ANDROID_ABIS)
foreach(abi armeabi armeabi-v7a arm64-v8a)
if("${abi}" IN_LIST _ANDROID_ABIS)
set(CMAKE_ANDROID_ARCH_ABI "${abi}")
break()
endif()
endforeach()
endif()
unset(_ANDROID_ABIS)
if(NOT CMAKE_ANDROID_ARCH_ABI)
set(CMAKE_ANDROID_ARCH_ABI "armeabi")
endif()
endif()
endif()
if(_INCLUDED_ABIS AND NOT CMAKE_ANDROID_ARCH_ABI IN_LIST _ANDROID_KNOWN_ABIS)
message(FATAL_ERROR
"Android: ABI '${CMAKE_ANDROID_ARCH_ABI}' is not supported by the NDK.\n"
"Supported ABIS: ${_ANDROID_KNOWN_ABIS}."
)
endif()
set(CMAKE_ANDROID_ARCH "${NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_ARCH}")
if(_ANDROID_SYSROOT_ARCH AND NOT "x${_ANDROID_SYSROOT_ARCH}" STREQUAL "x${CMAKE_ANDROID_ARCH}")
message(FATAL_ERROR
"Android: Architecture '${_ANDROID_SYSROOT_ARCH}' specified in CMAKE_SYSROOT:\n"
" ${CMAKE_SYSROOT}\n"
"does not match architecture '${CMAKE_ANDROID_ARCH}' for the ABI '${CMAKE_ANDROID_ARCH_ABI}'."
)
endif()
set(CMAKE_ANDROID_ARCH_TRIPLE "${NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_TRIPLE}")
set(CMAKE_ANDROID_ARCH_LLVM_TRIPLE
"${NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_LLVM_TRIPLE}")
# Select a processor.
if(NOT CMAKE_SYSTEM_PROCESSOR)
set(CMAKE_SYSTEM_PROCESSOR "${NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC}")
endif()
# If the user specified both an ABI and a processor then they might not match.
if(NOT NDK_ABI_${CMAKE_ANDROID_ARCH_ABI}_PROC STREQUAL CMAKE_SYSTEM_PROCESSOR)
message(FATAL_ERROR "Android: The specified CMAKE_ANDROID_ARCH_ABI='${CMAKE_ANDROID_ARCH_ABI}' and CMAKE_SYSTEM_PROCESSOR='${CMAKE_SYSTEM_PROCESSOR}' is not a valid combination.")
endif()
# Select an API.
if(CMAKE_SYSTEM_VERSION)
set(_ANDROID_API_VAR CMAKE_SYSTEM_VERSION)
elseif(CMAKE_ANDROID_API)
set(CMAKE_SYSTEM_VERSION "${CMAKE_ANDROID_API}")
set(_ANDROID_API_VAR CMAKE_ANDROID_API)
elseif(_ANDROID_SYSROOT_API)
set(CMAKE_SYSTEM_VERSION "${_ANDROID_SYSROOT_API}")
set(_ANDROID_API_VAR CMAKE_SYSROOT)
elseif(_ANDROID_STANDALONE_TOOLCHAIN_API)
set(CMAKE_SYSTEM_VERSION "${_ANDROID_STANDALONE_TOOLCHAIN_API}")
endif()
if(CMAKE_SYSTEM_VERSION)
if(CMAKE_ANDROID_API AND NOT "x${CMAKE_ANDROID_API}" STREQUAL "x${CMAKE_SYSTEM_VERSION}")
message(FATAL_ERROR
"Android: The API specified by CMAKE_ANDROID_API='${CMAKE_ANDROID_API}' is not consistent with CMAKE_SYSTEM_VERSION='${CMAKE_SYSTEM_VERSION}'."
)
endif()
if(_ANDROID_SYSROOT_API)
foreach(v CMAKE_ANDROID_API CMAKE_SYSTEM_VERSION)
if(${v} AND NOT "x${_ANDROID_SYSROOT_API}" STREQUAL "x${${v}}")
message(FATAL_ERROR
"Android: The API specified by ${v}='${${v}}' is not consistent with CMAKE_SYSROOT:\n"
" ${CMAKE_SYSROOT}"
)
endif()
endforeach()
endif()
if(CMAKE_ANDROID_NDK)
if (_INCLUDED_PLATFORMS)
if(CMAKE_SYSTEM_VERSION GREATER NDK_MAX_PLATFORM_LEVEL OR
CMAKE_SYSTEM_VERSION LESS NDK_MIN_PLATFORM_LEVEL)
message(FATAL_ERROR
"Android: The API level ${CMAKE_SYSTEM_VERSION} is not supported by the NDK.\n"
"Choose one in the range of [${NDK_MIN_PLATFORM_LEVEL}, ${NDK_MAX_PLATFORM_LEVEL}]."
)
endif()
else()
if(NOT IS_DIRECTORY "${CMAKE_ANDROID_NDK}/platforms/android-${CMAKE_SYSTEM_VERSION}")
message(FATAL_ERROR
"Android: The API specified by ${_ANDROID_API_VAR}='${${_ANDROID_API_VAR}}' does not exist in the NDK. "
"The directory:\n"
" ${CMAKE_ANDROID_NDK}/platforms/android-${CMAKE_SYSTEM_VERSION}\n"
"does not exist."
)
endif()
endif()
endif()
elseif(CMAKE_ANDROID_NDK)
if (_INCLUDED_PLATFORMS)
set(CMAKE_SYSTEM_VERSION ${NDK_MIN_PLATFORM_LEVEL})
# And for LP64 we need to pull up to 21. No diagnostic is provided here because
# minSdkVersion < 21 is valid for the project even though it may not be for this
# ABI.
if(CMAKE_ANDROID_ARCH_ABI MATCHES "64(-v8a)?$" AND CMAKE_SYSTEM_VERSION LESS 21)
set(CMAKE_SYSTEM_VERSION 21)
endif()
else()
file(GLOB _ANDROID_APIS_1 RELATIVE "${CMAKE_ANDROID_NDK}/platforms" "${CMAKE_ANDROID_NDK}/platforms/android-[0-9]")
file(GLOB _ANDROID_APIS_2 RELATIVE "${CMAKE_ANDROID_NDK}/platforms" "${CMAKE_ANDROID_NDK}/platforms/android-[0-9][0-9]")
list(SORT _ANDROID_APIS_1)
list(SORT _ANDROID_APIS_2)
set(_ANDROID_APIS ${_ANDROID_APIS_1} ${_ANDROID_APIS_2})
unset(_ANDROID_APIS_1)
unset(_ANDROID_APIS_2)
if(_ANDROID_APIS STREQUAL "")
message(FATAL_ERROR
"Android: No APIs found in the NDK. No\n"
" ${CMAKE_ANDROID_NDK}/platforms/android-*\n"
"directories exist."
)
endif()
string(REPLACE "android-" "" _ANDROID_APIS "${_ANDROID_APIS}")
list(REVERSE _ANDROID_APIS)
list(GET _ANDROID_APIS 0 CMAKE_SYSTEM_VERSION)
unset(_ANDROID_APIS)
endif()
endif()
if(NOT CMAKE_SYSTEM_VERSION MATCHES "^[0-9]+$")
message(FATAL_ERROR "Android: The API specified by CMAKE_SYSTEM_VERSION='${CMAKE_SYSTEM_VERSION}' is not an integer.")
endif()
if(CMAKE_ANDROID_NDK AND NOT DEFINED CMAKE_ANDROID_NDK_DEPRECATED_HEADERS)
if(IS_DIRECTORY "${CMAKE_ANDROID_NDK}/sysroot/usr/include/${CMAKE_ANDROID_ARCH_TRIPLE}")
# Unified headers exist so we use them by default.
set(CMAKE_ANDROID_NDK_DEPRECATED_HEADERS 0)
else()
# Unified headers do not exist so use the deprecated headers.
set(CMAKE_ANDROID_NDK_DEPRECATED_HEADERS 1)
endif()
endif()
# Save the Android-specific information in CMakeSystem.cmake.
set(CMAKE_SYSTEM_CUSTOM_CODE "
set(CMAKE_ANDROID_NDK \"${CMAKE_ANDROID_NDK}\")
set(CMAKE_ANDROID_STANDALONE_TOOLCHAIN \"${CMAKE_ANDROID_STANDALONE_TOOLCHAIN}\")
set(CMAKE_ANDROID_ARCH \"${CMAKE_ANDROID_ARCH}\")
set(CMAKE_ANDROID_ARCH_ABI \"${CMAKE_ANDROID_ARCH_ABI}\")
")
if(CMAKE_ANDROID_NDK)
string(APPEND CMAKE_SYSTEM_CUSTOM_CODE
"set(CMAKE_ANDROID_ARCH_TRIPLE \"${CMAKE_ANDROID_ARCH_TRIPLE}\")\n"
"set(CMAKE_ANDROID_ARCH_LLVM_TRIPLE \"${CMAKE_ANDROID_ARCH_LLVM_TRIPLE}\")\n"
"set(CMAKE_ANDROID_NDK_VERSION \"${CMAKE_ANDROID_NDK_VERSION}\")\n"
"set(CMAKE_ANDROID_NDK_DEPRECATED_HEADERS \"${CMAKE_ANDROID_NDK_DEPRECATED_HEADERS}\")\n"
"set(CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG \"${CMAKE_ANDROID_NDK_TOOLCHAIN_HOST_TAG}\")\n"
"set(CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED \"${CMAKE_ANDROID_NDK_TOOLCHAIN_UNIFIED}\")\n"
)
endif()
# Select an ARM variant.
if(CMAKE_ANDROID_ARCH_ABI MATCHES "^armeabi")
if(CMAKE_ANDROID_ARM_MODE)
set(CMAKE_ANDROID_ARM_MODE 1)
else()
set(CMAKE_ANDROID_ARM_MODE 0)
endif()
string(APPEND CMAKE_SYSTEM_CUSTOM_CODE
"set(CMAKE_ANDROID_ARM_MODE \"${CMAKE_ANDROID_ARM_MODE}\")\n"
)
elseif(DEFINED CMAKE_ANDROID_ARM_MODE)
message(FATAL_ERROR "Android: CMAKE_ANDROID_ARM_MODE is set but is valid only for 'armeabi' architectures.")
endif()
if(CMAKE_ANDROID_ARCH_ABI STREQUAL "armeabi-v7a")
if(CMAKE_ANDROID_ARM_NEON)
set(CMAKE_ANDROID_ARM_NEON 1)
else()
set(CMAKE_ANDROID_ARM_NEON 0)
endif()
string(APPEND CMAKE_SYSTEM_CUSTOM_CODE
"set(CMAKE_ANDROID_ARM_NEON \"${CMAKE_ANDROID_ARM_NEON}\")\n"
)
elseif(DEFINED CMAKE_ANDROID_ARM_NEON)
message(FATAL_ERROR "Android: CMAKE_ANDROID_ARM_NEON is set but is valid only for 'armeabi-v7a' architecture.")
endif()
# Report the chosen architecture.
message(STATUS "Android: Targeting API '${CMAKE_SYSTEM_VERSION}' with architecture '${CMAKE_ANDROID_ARCH}', ABI '${CMAKE_ANDROID_ARCH_ABI}', and processor '${CMAKE_SYSTEM_PROCESSOR}'")
cmake_policy(POP)
# Include the NDK hook.
# It can be used by NDK to inject necessary fixes for an earlier cmake.
if(CMAKE_ANDROID_NDK)
include(${CMAKE_ANDROID_NDK}/build/cmake/hooks/post/Android-Determine.cmake OPTIONAL)
endif()