# ------------------------------------------------------------------------------ # Android CMake toolchain file, for use with the Android NDK r5-r7 # Requires cmake 2.6.3 or newer (2.8.3 or newer is recommended). # See home page: http://code.google.com/p/android-cmake/ # # The file is mantained by the OpenCV project. And also can be found at # http://code.opencv.org/svn/opencv/trunk/opencv/android/android.toolchain.cmake # # Usage Linux: # $ export ANDROID_NDK=/absolute/path/to/the/android-ndk # $ mkdir build && cd build # $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake .. # $ make -j8 # # Usage Linux (using standalone toolchain): # $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain # $ mkdir build && cd build # $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake .. # $ make -j8 # # Usage Windows: # You need native port of make to build your project. # Android NDK r7 already has make.exe on board. # For older NDK you have to install it separately. # For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm # # $ SET ANDROID_NDK=C:\absolute\path\to\the\android-ndk # $ mkdir build && cd build # $ cmake.exe -G"MinGW Makefiles" # -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake # -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows\bin\make.exe" .. # $ "%ANDROID_NDK%\prebuilt\windows\bin\make.exe" # # # Options (can be set as cmake parameters: -D=): # ANDROID_NDK=/opt/android-ndk - path to the NDK root. # Can be set as environment variable. Can be set only at first cmake run. # # ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the # standalone toolchain. This option is not used if full NDK is found # (ignored if ANDROID_NDK is set). # Can be set as environment variable. Can be set only at first cmake run. # # ANDROID_ABI=armeabi-v7a - specifies the target Application Binary # Interface (ABI). This option nearly matches to the APP_ABI variable # used by ndk-build tool from Android NDK. # Possible values are: # "armeabi" - matches to the NDK ABI with the same name. # See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. # "armeabi-v7a" - matches to the NDK ABI with the same name. # See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. # "armeabi-v7a with NEON" - same as armeabi-v7a, but # sets NEON as floating-point unit # "armeabi-v7a with VFPV3" - same as armeabi-v7a, but # sets VFPV3 as floating-point unit (has 32 registers instead of 16). # "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP. # "x86" - matches to the NDK ABI with the same name. # See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. # # ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for. # Option is read-only when standalone toolchain used. # # ANDROID_FORCE_ARM_BUILD=OFF - set true to generate 32-bit ARM instructions # instead of Thumb-1. Is not available for "x86" (inapplicable) and # "armeabi-v6 with VFP" (forced) ABIs. # # ANDROID_NO_UNDEFINED=ON - set true to show all undefined symbols as linker # errors even if they are not used. # # ANDROID_SO_UNDEFINED=OFF - set true to allow undefined symbols in shared # libraries. Automatically turned on for NDK r5x and r6x due to GLESv2 # problems. # # LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary # files. See additional details below. # # ANDROID_SET_OBSOLETE_VARIABLES=ON - it set, then toolchain defines some # obsolete variables which were set by previous versions of this file for # backward compatibility. # # # What?: # android-cmake toolchain searches for NDK/toolchain in the following order: # ANDROID_NDK - cmake parameter # ANDROID_NDK - environment variable # ANDROID_STANDALONE_TOOLCHAIN - cmake parameter # ANDROID_STANDALONE_TOOLCHAIN - environment variable # ANDROID_NDK - default locations # ANDROID_STANDALONE_TOOLCHAIN - default locations # # Make sure to do the following in your scripts: # SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" ) # SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" ) # The flags will be prepopulated with critical flags, so don't loose them. # Also be aware that toolchain also sets configuration-specific compiler # flags and linker flags. # # ANDROID and BUILD_ANDROID will be set to true, you may test any of these # variables to make necessary Android-specific configuration changes. # # Also ARMEABI or ARMEABI_V7A or X86 will be set true, mutually exclusive. # NEON option will be set true if VFP is set to NEON. # # LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android # libraries will be installed. # Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be # under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME} # (depending on the target ABI). This is convenient for Android packaging. # # Authors: # Ethan Rublee ethan.ruble@gmail.com # Andrey Kamaev andrey.kamaev@itseez.com # # Change Log: # - initial version December 2010 # - modified April 2011 # [+] added possibility to build with NDK (without standalone toolchain) # [+] support cross-compilation on Windows (native, no cygwin support) # [+] added compiler option to force "char" type to be signed # [+] added toolchain option to compile to 32-bit ARM instructions # [+] added toolchain option to disable SWIG search # [+] added platform "armeabi-v7a with VFPV3" # [~] ARM_TARGETS renamed to ARM_TARGET # [+] EXECUTABLE_OUTPUT_PATH is set by toolchain (required on Windows) # [~] Fixed bug with ANDROID_API_LEVEL variable # [~] turn off SWIG search if it is not found first time # - modified May 2011 # [~] ANDROID_LEVEL is renamed to ANDROID_API_LEVEL # [+] ANDROID_API_LEVEL is detected by toolchain if not specified # [~] added guard to prevent changing of output directories on the first # cmake pass # [~] toolchain exits with error if ARM_TARGET is not recognized # - modified June 2011 # [~] default NDK path is updated for version r5c # [+] variable CMAKE_SYSTEM_PROCESSOR is set based on ARM_TARGET # [~] toolchain install directory is added to linker paths # [-] removed SWIG-related stuff from toolchain # [+] added macro find_host_package, find_host_program to search # packages/programs on the host system # [~] fixed path to STL library # - modified July 2011 # [~] fixed options caching # [~] search for all supported NDK versions # [~] allowed spaces in NDK path # - modified September 2011 # [~] updated for NDK r6b # - modified November 2011 # [*] rewritten for NDK r7 # [+] x86 toolchain support (experimental) # [+] added "armeabi-v6 with VFP" ABI for ARMv6 processors. # [~] improved compiler and linker flags management # [+] support different build flags for Release and Debug configurations # [~] by default compiler flags the same as used by ndk-build (but only # where reasonable) # [~] ANDROID_NDK_TOOLCHAIN_ROOT is splitted to ANDROID_STANDALONE_TOOLCHAIN # and ANDROID_TOOLCHAIN_ROOT # [~] ARM_TARGET is renamed to ANDROID_ABI # [~] ARMEABI_NDK_NAME is renamed to ANDROID_NDK_ABI_NAME # [~] ANDROID_API_LEVEL is renamed to ANDROID_NATIVE_API_LEVEL # - modified January 2012 # [+] added stlport_static support (experimental) # [+] added special check for cygwin # [+] filtered out hidden files (starting with .) while globbing inside NDK # [+] automatically applied GLESv2 linkage fix for NDK revisions 5-6 # [+] added ANDROID_GET_ABI_RAWNAME to get NDK ABI names by CMake flags # - modified February 2012 # [+] updated for NDK r7b # [~] fixed cmake try_compile() command # [~] Fix for missing install_name_tool on OS X # - modified March 2012 # [~] fixed incorrect C compiler flags # [~] fixed CMAKE_SYSTEM_PROCESSOR change on ANDROID_ABI change # [+] improved toolchain loading speed # [+] added assembler language support (.S) # [+] allowed preset search paths and extra search suffixes # - modified April 2012 # [+] updated for NDK r7c # [~] fixed most of problems with compiler/linker flags and caching # [+] added option ANDROID_FUNCTION_LEVEL_LINKING # ------------------------------------------------------------------------------ cmake_minimum_required( VERSION 2.6.3 ) if( DEFINED CMAKE_CROSSCOMPILING ) #subsequent toolchain loading is not really needed return() endif() if( PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" ) include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL ) endif() # this one is important set( CMAKE_SYSTEM_NAME Linux ) #this one not so much set( CMAKE_SYSTEM_VERSION 1 ) set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) if(NOT DEFINED ANDROID_NDK_SEARCH_PATHS) if( CMAKE_HOST_WIN32 ) file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS ) set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" ) else() file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS ) set( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "${ANDROID_NDK_SEARCH_PATHS}/NVPACK/android-ndk" ) endif() endif() if(NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH) set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain ) endif() set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" ) set( ANDROID_SUPPORTED_ABIS_x86 "x86" ) set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) macro( __LIST_FILTER listvar regex ) if( ${listvar} ) foreach( __val ${${listvar}} ) if( __val MATCHES "${regex}" ) list( REMOVE_ITEM ${listvar} "${__val}" ) endif() endforeach() endif() endmacro() macro( __INIT_VARIABLE var_name ) set( __test_path 0 ) foreach( __var ${ARGN} ) if( __var STREQUAL "PATH" ) set( __test_path 1 ) break() endif() endforeach() if( __test_path AND NOT EXISTS "${${var_name}}" ) unset( ${var_name} CACHE ) endif() if( "${${var_name}}" STREQUAL "" ) set( __values 0 ) foreach( __var ${ARGN} ) if( __var STREQUAL "VALUES" ) set( __values 1 ) elseif( NOT __var STREQUAL "PATH" ) set( __obsolete 0 ) if( __var MATCHES "^OBSOLETE_.*$" ) string( REPLACE "OBSOLETE_" "" __var "${__var}" ) set( __obsolete 1 ) endif() if( __var MATCHES "^ENV_.*$" ) string( REPLACE "ENV_" "" __var "${__var}" ) set( __value "$ENV{${__var}}" ) elseif( DEFINED ${__var} ) set( __value "${${__var}}" ) else() if( __values ) set( __value "${__var}" ) else() set( __value "" ) endif() endif() if( NOT "${__value}" STREQUAL "" ) if( __test_path ) if( EXISTS "${__value}" ) set( ${var_name} "${__value}" ) if( __obsolete ) message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) endif() break() endif() else() set( ${var_name} "${__value}" ) if( __obsolete ) message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) endif() break() endif() endif() endif() endforeach() unset( __value ) unset( __values ) unset( __obsolete ) endif() unset( __test_path ) endmacro() macro( __DETECT_NATIVE_API_LEVEL _var _path ) SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" ) FILE( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" ) if( NOT __apiFileContent ) message( SEND_ERROR "Could not get Android native API level. Probably you have specified invalid level value, or your copy of NDK/toolchain is broken." ) endif() string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" ) unset( __apiFileContent ) unset( __ndkApiLevelRegex ) endmacro() macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root ) file( GLOB __gccExePath "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) __LIST_FILTER( __gccExePath "bin/[.].*-gcc${TOOL_OS_SUFFIX}$" ) list( LENGTH __gccExePath __gccExePathsCount ) if( NOT __gccExePathsCount EQUAL 1 ) message( WARNING "Could not uniquely determine machine name for compiler from ${_root}." ) set( ${_var} "" ) else() get_filename_component( __gccExeName "${__gccExePath}" NAME_WE ) string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" ) endif() unset( __gccExePath ) unset( __gccExePathsCount ) unset( __gccExeName ) endmacro() macro( __COPY_IF_DIFFERENT _source _destination ) execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${_source}" "${_destination}" RESULT_VARIABLE __fileCopyProcess ) if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${_destination}") message( SEND_ERROR "Failed copying of ${_source} to the ${_destination}" ) endif() unset( __fileCopyProcess ) endmacro() #stl version: by default gnustl_static will be used set( ANDROID_USE_STLPORT FALSE CACHE BOOL "Experimental: use stlport_static instead of gnustl_static") mark_as_advanced( ANDROID_USE_STLPORT ) #fight against cygwin set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") mark_as_advanced( ANDROID_FORBID_SYGWIN ) if( ANDROID_FORBID_SYGWIN ) if( CYGWIN ) message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." ) endif() if( CMAKE_HOST_WIN32 ) #remove cygwin from PATH set( __new_path "$ENV{PATH}") __LIST_FILTER( __new_path "cygwin" ) set(ENV{PATH} "${__new_path}") unset(__new_path) endif() endif() #detect current host platform set( TOOL_OS_SUFFIX "" ) if( CMAKE_HOST_APPLE ) set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86" ) elseif( CMAKE_HOST_WIN32 ) set( ANDROID_NDK_HOST_SYSTEM_NAME "windows" ) set( TOOL_OS_SUFFIX ".exe" ) elseif( CMAKE_HOST_UNIX ) set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86" ) else() message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) endif() #see if we have path to Android NDK __INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK ) if( NOT ANDROID_NDK ) #see if we have path to Android standalone toolchain __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT ) if( NOT ANDROID_STANDALONE_TOOLCHAIN ) #try to find Android NDK in one of the the default locations set( __ndkSearchPaths ) foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} ) foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} ) list( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" ) endforeach() endforeach() __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} ) unset( __ndkSearchPaths ) if( ANDROID_NDK ) message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" ) message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" ) else() #try to find Android standalone toolchain in one of the the default locations __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) if( ANDROID_STANDALONE_TOOLCHAIN ) message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" ) message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" ) endif( ANDROID_STANDALONE_TOOLCHAIN ) endif( ANDROID_NDK ) endif( NOT ANDROID_STANDALONE_TOOLCHAIN ) endif( NOT ANDROID_NDK ) #remember found paths if( ANDROID_NDK ) get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE ) #try to detect change if( CMAKE_AR ) string( LENGTH "${ANDROID_NDK}" __length ) string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK ) message( FATAL_ERROR "It is not possible to change path to the NDK on subsequent run." ) endif() unset( __androidNdkPreviousPath ) unset( __length ) endif() set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" ) set( BUILD_WITH_ANDROID_NDK True ) elseif( ANDROID_STANDALONE_TOOLCHAIN ) get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE ) #try to detect change if( CMAKE_AR ) string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length ) string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath ) if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN ) message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." ) endif() unset( __androidStandaloneToolchainPreviousPath ) unset( __length ) endif() set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" ) set( BUILD_WITH_STANDALONE_TOOLCHAIN True ) else() list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH) message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolcahin. You should either set an environment variable: export ANDROID_NDK=~/my-android-ndk or export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain or put the toolchain or NDK in the default path: sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH} sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) endif() #get all the details about standalone toolchain if( BUILD_WITH_STANDALONE_TOOLCHAIN ) __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) set( __availableToolchains "standalone" ) __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" ) if( NOT __availableToolchainMachines ) message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." ) endif() if( __availableToolchainMachines MATCHES i686 ) set( __availableToolchainArchs "x86" ) elseif( __availableToolchainMachines MATCHES arm ) set( __availableToolchainArchs "arm" ) endif() if( ANDROID_COMPILER_VERSION ) #do not run gcc every time because it is relatevely expencive set( __availableToolchainCompilerVersions "${ANDROID_COMPILER_VERSION}" ) else() execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) endif() endif() #get all the details about NDK if( BUILD_WITH_ANDROID_NDK ) file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" ) string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) file( GLOB __availableToolchains RELATIVE "${ANDROID_NDK}/toolchains" "${ANDROID_NDK}/toolchains/*" ) __LIST_FILTER( __availableToolchains "^[.]" ) set( __availableToolchainMachines "" ) set( __availableToolchainArchs "" ) set( __availableToolchainCompilerVersions "" ) foreach( __toolchain ${__availableToolchains} ) __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK}/toolchains/${__toolchain}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) if( __machine ) string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+$" __version "${__toolchain}" ) string( REGEX MATCH "^[^-]+" __arch "${__toolchain}" ) list( APPEND __availableToolchainMachines ${__machine} ) list( APPEND __availableToolchainArchs ${__arch} ) list( APPEND __availableToolchainCompilerVersions ${__version} ) else() list( REMOVE_ITEM __availableToolchains "${__toolchain}" ) endif() endforeach() if( NOT __availableToolchains ) message( FATAL_ERROR "Could not any working toolchain in the NDK. Probably your Android NDK is broken." ) endif() endif() #build list of available ABIs if( NOT ANDROID_SUPPORTED_ABIS ) set( ANDROID_SUPPORTED_ABIS "" ) set( __uniqToolchainArchNames ${__availableToolchainArchs} ) list( REMOVE_DUPLICATES __uniqToolchainArchNames ) list( SORT __uniqToolchainArchNames ) foreach( __arch ${__uniqToolchainArchNames} ) list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} ) endforeach() unset( __uniqToolchainArchNames ) if( NOT ANDROID_SUPPORTED_ABIS ) message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." ) endif() endif() #choose target ABI __INIT_VARIABLE( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ANDROID_SUPPORTED_ABIS} ) #verify that target ABI is supported list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx ) if( __androidAbiIdx EQUAL -1 ) string( REPLACE ";" "\", \"", PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" ) message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain. Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\" " ) endif() unset( __androidAbiIdx ) #remember target ABI set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) #set target ABI options if( ANDROID_ABI STREQUAL "x86" ) set( X86 true ) set( ANDROID_NDK_ABI_NAME "x86" ) set( ANDROID_ARCH_NAME "x86" ) set( CMAKE_SYSTEM_PROCESSOR "i686" ) elseif( ANDROID_ABI STREQUAL "armeabi" ) set( ARMEABI true ) set( ANDROID_NDK_ABI_NAME "armeabi" ) set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv5te" ) elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" ) set( ARMEABI_V6 true ) set( ANDROID_NDK_ABI_NAME "armeabi" ) set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv6" ) #need always fallback to older platform set( ARMEABI true ) elseif( ANDROID_ABI STREQUAL "armeabi-v7a") set( ARMEABI_V7A true ) set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" ) set( ARMEABI_V7A true ) set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) set( VFPV3 true ) elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" ) set( ARMEABI_V7A true ) set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) set( VFPV3 true ) set( NEON true ) else() message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." ) endif() if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" ) #really dirty hack #it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run... file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" ) endif() set( ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} CACHE INTERNAL "ANDROID_ABI can be changed only to one of these ABIs. Changing to any other ABI requires to reset cmake cache." ) if( CMAKE_VERSION VERSION_GREATER "2.8" ) list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} ) set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} ) endif() if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 ) __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF ) set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE ) mark_as_advanced( ANDROID_FORCE_ARM_BUILD ) else() unset( ANDROID_FORCE_ARM_BUILD CACHE ) endif() #choose toolchain if( ANDROID_TOOLCHAIN_NAME ) list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx ) if( __toolchainIdx EQUAL -1 ) message( FATAL_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing. You need to remove CMakeCache.txt and rerun cmake manually to change the toolchain" ) endif() list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME ) message( SEND_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." ) endif() else() set( __toolchainIdx -1 ) set( __applicableToolchains "" ) set( __toolchainMaxVersion "0.0.0" ) list( LENGTH __availableToolchains __availableToolchainsCount ) math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" ) foreach( __idx RANGE ${__availableToolchainsCount} ) list( GET __availableToolchainArchs ${__idx} __toolchainArch ) if( __toolchainArch STREQUAL ANDROID_ARCH_NAME ) list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion ) set( __toolchainMaxVersion "${__toolchainVersion}" ) set( __toolchainIdx ${__idx} ) endif() endif() endforeach() unset( __availableToolchainsCount ) unset( __toolchainMaxVersion ) unset( __toolchainVersion ) endif() unset( __toolchainArch ) if( __toolchainIdx EQUAL -1 ) message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." ) endif() list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME ) list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME ) list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION ) set( ANDROID_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" CACHE INTERNAL "Name of toolchain used" ) set( ANDROID_COMPILER_VERSION "${ANDROID_COMPILER_VERSION}" CACHE INTERNAL "compiler version from selected toolchain" ) unset( __toolchainIdx ) unset( __availableToolchains ) unset( __availableToolchainMachines ) unset( __availableToolchainArchs ) unset( __availableToolchainCompilerVersions ) #choose native API level __INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) string( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) #validate list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) if( __levelIdx EQUAL -1 ) message( SEND_ERROR "Specified Android native API level (${ANDROID_NATIVE_API_LEVEL}) is not supported by your NDK/toolchain." ) endif() unset( __levelIdx ) if( BUILD_WITH_ANDROID_NDK ) __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" ) if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL ) message( SEND_ERROR "Specified Android API level (${ANDROID_NATIVE_API_LEVEL}) does not match to the level found (${__realApiLevel}). Probably your copy of NDK is broken." ) endif() unset( __realApiLevel ) endif() set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE ) if( CMAKE_VERSION VERSION_GREATER "2.8" ) list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS ) set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) endif() #setup paths if( BUILD_WITH_STANDALONE_TOOLCHAIN ) set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) set( __stlLibPath "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) endif() if( BUILD_WITH_ANDROID_NDK ) set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) if( ANDROID_USE_STLPORT ) set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}" ) else() set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include" ) set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}" ) endif() endif() # specify the cross compiler set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" ) set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" ) set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "Assembler" ) if( CMAKE_VERSION VERSION_LESS 2.8.5 ) set( CMAKE_ASM_COMPILER_ARG1 "-c" ) endif() #there may be a way to make cmake deduce these TODO deduce the rest of the tools set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" ) set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" ) set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" ) set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" ) set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" ) set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" ) if( APPLE ) find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool ) if( NOT CMAKE_INSTALL_NAME_TOOL ) message( FATAL_ERROR "Could not find install_name_tool, please check your installation." ) endif() mark_as_advanced( CMAKE_INSTALL_NAME_TOOL ) endif() #export directories set( ANDROID_SYSTEM_INCLUDE_DIRS "" ) set( ANDROID_SYSTEM_LIB_DIRS "" ) #setup output directories set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" ) set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" ) else() set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" ) endif() set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" ) #includes list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_SYSROOT}/usr/include" ) if( __stlIncludePath AND EXISTS "${__stlIncludePath}" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlIncludePath}" ) endif() #STL bits includes if( __stlLibPath AND EXISTS "${__stlLibPath}/include" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlLibPath}/include" ) endif() if( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb/bits" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/bits" ) list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) endif() #flags and definitions if(ANDROID_SYSROOT MATCHES "[ ;\"]") set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) # quotes will break try_compile and compiler identification message(WARNING "Your Android system root has non-alphanumeric symbols. It can break compiler features detection and the whole build.") else() set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) endif() remove_definitions( -DANDROID ) add_definitions( -DANDROID ) # Force set compilers because standard identification works badly for us include( CMakeForceCompiler ) CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) set( CMAKE_C_PLATFORM_ID Linux ) set( CMAKE_C_SIZEOF_DATA_PTR 4 ) set( CMAKE_C_HAS_ISYSROOT 1 ) set( CMAKE_C_COMPILER_ABI ELF ) CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) set( CMAKE_CXX_PLATFORM_ID Linux ) set( CMAKE_CXX_SIZEOF_DATA_PTR 4 ) set( CMAKE_CXX_HAS_ISYSROOT 1 ) set( CMAKE_CXX_COMPILER_ABI ELF ) #force ASM compiler (required for CMake < 2.8.5) set( CMAKE_ASM_COMPILER_ID_RUN TRUE ) set( CMAKE_ASM_COMPILER_ID GNU ) set( CMAKE_ASM_COMPILER_WORKS TRUE ) set( CMAKE_ASM_COMPILER_FORCED TRUE ) set( CMAKE_COMPILER_IS_GNUASM 1) # NDK flags if( ARMEABI OR ARMEABI_V7A ) # NDK also defines -ffunction-sections -funwind-tables but they result in worse OpenCV performance set( CMAKE_CXX_FLAGS "-fPIC -Wno-psabi" ) set( CMAKE_C_FLAGS "-fPIC -Wno-psabi" ) if( ANDROID_USE_STLPORT ) set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" ) set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" ) else() set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" ) set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" ) endif() remove_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ) add_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ) # extra arm-specific flags set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) elseif( X86 ) set( CMAKE_CXX_FLAGS "-funwind-tables" ) set( CMAKE_C_FLAGS "-funwind-tables" ) if( ANDROID_USE_STLPORT ) set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" ) set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" ) else() set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" ) set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" ) endif() else() set( CMAKE_CXX_FLAGS "" ) set( CMAKE_C_FLAGS "" ) endif() #release and debug flags if( ARMEABI OR ARMEABI_V7A ) if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) #It is recommended to use the -mthumb compiler flag to force the generation #of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones). # O3 instead of O2/Os in release mode - like cmake sets for desktop gcc set( CMAKE_CXX_FLAGS_RELEASE "-mthumb -O3" ) set( CMAKE_C_FLAGS_RELEASE "-mthumb -O3" ) set( CMAKE_CXX_FLAGS_DEBUG "-marm -Os -finline-limit=64" ) set( CMAKE_C_FLAGS_DEBUG "-marm -Os -finline-limit=64" ) else() # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI # O3 instead of O2/Os in release mode - like cmake sets for desktop gcc set( CMAKE_CXX_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" ) set( CMAKE_C_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" ) set( CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -finline-limit=300" ) set( CMAKE_C_FLAGS_DEBUG "-marm -O0 -finline-limit=300" ) endif() elseif( X86 ) set( CMAKE_CXX_FLAGS_RELEASE "-O3 -fstrict-aliasing" ) set( CMAKE_C_FLAGS_RELEASE "-O3 -fstrict-aliasing" ) set( CMAKE_CXX_FLAGS_DEBUG "-O0 -finline-limit=300" ) set( CMAKE_C_FLAGS_DEBUG "-O0 -finline-limit=300" ) endif() set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" ) set( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" ) set( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" ) set( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" ) #ABI-specific flags if( ARMEABI_V7A ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) if( NEON ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" ) elseif( VFPV3 ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" ) else() set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfp" ) endif() elseif( ARMEABI_V6 ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) elseif( ARMEABI ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) elseif( X86 ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" )#sse? endif() #linker flags list( APPEND ANDROID_SYSTEM_LIB_DIRS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}" "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ) set( ANDROID_LINKER_FLAGS "" ) #STL if( ANDROID_USE_STLPORT ) if( EXISTS "${__stlLibPath}/libstlport_static.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/libstlport_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) endif() if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--start-group -lstlport_static" ) endif() else( ANDROID_USE_STLPORT ) if( EXISTS "${__stlLibPath}/libgnustl_static.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/libgnustl_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/thumb/libstdc++.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) elseif( EXISTS "${__stlLibPath}/libstdc++.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) endif() if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -lstdc++" ) endif() #gcc exception & rtti support if( EXISTS "${__stlLibPath}/libsupc++.a" ) __COPY_IF_DIFFERENT( "${__stlLibPath}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) endif() if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -lsupc++" ) endif() endif( ANDROID_USE_STLPORT ) #cleanup for STL search unset( __stlIncludePath ) unset( __stlLibPath ) #other linker flags __INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON ) set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" FORCE ) mark_as_advanced( ANDROID_NO_UNDEFINED ) if( ANDROID_NO_UNDEFINED ) set( ANDROID_LINKER_FLAGS "-Wl,--no-undefined ${ANDROID_LINKER_FLAGS}" ) endif() if (ANDROID_NDK MATCHES "-r[56].?$") #libGLESv2.so in NDK's prior to r7 refers to exteranal symbols. So this flag option is required for all projects using OpenGL from native. __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON ) else() __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF ) endif() set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE ) mark_as_advanced( ANDROID_SO_UNDEFINED ) if( ANDROID_SO_UNDEFINED ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) endif() __INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON ) set( ANDROID_FUNCTION_LEVEL_LINKING ON CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE ) mark_as_advanced( ANDROID_FUNCTION_LEVEL_LINKING ) if( ANDROID_FUNCTION_LEVEL_LINKING ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" ) set( ANDROID_LINKER_FLAGS "-Wl,--gc-sections ${ANDROID_LINKER_FLAGS}" ) endif() if( ARMEABI_V7A ) # this is *required* to use the following linker flags that routes around # a CPU bug in some Cortex-A8 implementations: set( ANDROID_LINKER_FLAGS "-Wl,--fix-cortex-a8 ${ANDROID_LINKER_FLAGS}" ) endif() #cache flags set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" ) set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags" ) set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c++ Release flags" ) set( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}" CACHE STRING "c Release flags" ) set( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c++ Debug flags" ) set( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}" CACHE STRING "c Debug flags" ) set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "linker flags" ) set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "linker flags" ) set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "linker flags" ) include_directories( SYSTEM ${ANDROID_SYSTEM_INCLUDE_DIRS} ) link_directories( ${ANDROID_SYSTEM_LIB_DIRS} ) #finish flags set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Extra Android compiler flags") set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Extra Android linker flags") set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" ) set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" ) set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" ) #set these global flags for cmake client scripts to change behavior set( ANDROID True ) set( BUILD_ANDROID True ) # where is the target environment set( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" ) # only search for libraries and includes in the ndk toolchain set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) #macro to find packages on the host OS macro( find_host_package ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) if( CMAKE_HOST_WIN32 ) SET( WIN32 1 ) SET( UNIX ) elseif( CMAKE_HOST_APPLE ) SET( APPLE 1 ) SET( UNIX ) endif() find_package( ${ARGN} ) SET( WIN32 ) SET( APPLE ) SET( UNIX 1 ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) endmacro() #macro to find programs on the host OS macro( find_host_program ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) if( CMAKE_HOST_WIN32 ) SET( WIN32 1 ) SET( UNIX ) elseif( CMAKE_HOST_APPLE ) SET( APPLE 1 ) SET( UNIX ) endif() find_program( ${ARGN} ) SET( WIN32 ) SET( APPLE ) SET( UNIX 1 ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) endmacro() macro( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR ) if( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" ) set( ${VAR} "armeabi" ) elseif( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" ) set( ${VAR} "armeabi-v7a" ) elseif( "${TOOLCHAIN_FLAG}" STREQUAL "X86" ) set( ${VAR} "x86" ) else() set( ${VAR} "unknown" ) endif() endmacro() # export toolchain settings for the try_compile() command if( NOT PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" ) set( __toolchain_config "") foreach( __var ANDROID_ABI ANDROID_FORCE_ARM_BUILD ANDROID_NATIVE_API_LEVEL ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_SET_OBSOLETE_VARIABLES LIBRARY_OUTPUT_PATH_ROOT ANDROID_USE_STLPORT ANDROID_FORBID_SYGWIN ANDROID_NDK ANDROID_STANDALONE_TOOLCHAIN ANDROID_FUNCTION_LEVEL_LINKING ) if( DEFINED ${__var} ) set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" )\n" ) endif() endforeach() file( WRITE "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/android.toolchain.config.cmake" "${__toolchain_config}" ) unset( __toolchain_config ) endif() # set some obsolete variables for backward compatibility set( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" ) mark_as_advanced( ANDROID_SET_OBSOLETE_VARIABLES ) if( ANDROID_SET_OBSOLETE_VARIABLES ) set( ANDROID_API_LEVEL ${ANDROID_NATIVE_API_LEVEL} ) set( ARM_TARGET "${ANDROID_ABI}" ) set( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" ) endif() # Variables controlling behavior or set by cmake toolchain: # ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86" # ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version) # ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF # ANDROID_USE_STLPORT : OFF/ON - EXPERIMENTAL!!! # ANDROID_FORBID_SYGWIN : ON/OFF # ANDROID_NO_UNDEFINED : ON/OFF # ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version) # ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF # Variables that takes effect only at first run: # ANDROID_FORCE_ARM_BUILD : ON/OFF # LIBRARY_OUTPUT_PATH_ROOT : # Can be set only at the first run: # ANDROID_NDK # ANDROID_STANDALONE_TOOLCHAIN # Obsolete: # ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL # ARM_TARGET : superseded by ANDROID_ABI # ARM_TARGETS : superseded by ANDROID_ABI (can be set only) # ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only) # ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed) # # Primary read-only variables: # ANDROID : always TRUE # ARMEABI : TRUE for arm v6 and older devices # ARMEABI_V6 : TRUE for arm v6 # ARMEABI_V7A : TRUE for arm v7a # NEON : TRUE if NEON unit is enabled # VFPV3 : TRUE if VFP version 3 is enabled # X86 : TRUE if configured for x86 # BUILD_ANDROID : always TRUE # BUILD_WITH_ANDROID_NDK : TRUE if NDK is used # BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used # ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform # ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a" or "x86" depending on ANDROID_ABI # ANDROID_ARCH_NAME : "arm" or "x86" depending on ANDROID_ABI # TOOL_OS_SUFFIX : "" or ".exe" depending on host platform # ANDROID_SYSTEM_INCLUDE_DIRS # ANDROID_SYSTEM_LIB_DIRS # Obsolete: # ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME # # Secondary (less stable) read-only variables: # ANDROID_COMPILER_VERSION : GCC version used # ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform # ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI # ANDROID_SYSROOT : path to the compiler sysroot # ANDROID_TOOLCHAIN_NAME : "standalone", "arm-linux-androideabi-4.4.3" or "x86-4.4.3" or something similar. # ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux" # ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK) # ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK # # Defaults: # ANDROID_DEFAULT_NDK_API_LEVEL # ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} # ANDROID_NDK_SEARCH_PATHS # ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH # ANDROID_SUPPORTED_ABIS_${ARCH} # ANDROID_SUPPORTED_NDK_VERSIONS