# Copyright (c) 2010-2011, Ethan Rublee # Copyright (c) 2011-2014, Andrey Kamaev # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # 1. Redistributions of source code must retain the above copyright notice, # this list of conditions and the following disclaimer. # # 2. 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. # # 3. Neither the name of the copyright holder nor the names of its # contributors may be used to endorse or promote products derived from this # software without specific prior written permission. # # 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 HOLDER 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. # ------------------------------------------------------------------------------ # Android CMake toolchain file, for use with the Android NDK r5-r9 # Requires cmake 2.6.3 or newer (2.8.5 or newer is recommended). # See home page: https://github.com/taka-no-me/android-cmake # # The file is mantained by the OpenCV project. The latest version can be get at # http://code.opencv.org/projects/opencv/repository/revisions/master/changes/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 (or newer) 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" .. # $ cmake.exe --build . # # # Options (can be set as cmake parameters: -D<option_name>=<value>): # 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 targets 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. # "mips" - matches to the NDK ABI with the same name. # See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. # # ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for. # Option is read-only when standalone toolchain is used. # # ANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.6 - the name of compiler # toolchain to be used. The list of possible values depends on the NDK # version. For NDK r8c the possible values are: # # * arm-linux-androideabi-4.4.3 # * arm-linux-androideabi-4.6 # * arm-linux-androideabi-clang3.1 # * mipsel-linux-android-4.4.3 # * mipsel-linux-android-4.6 # * mipsel-linux-android-clang3.1 # * x86-4.4.3 # * x86-4.6 # * x86-clang3.1 # # ANDROID_FORCE_ARM_BUILD=OFF - set ON to generate 32-bit ARM instructions # instead of Thumb. Is not available for "x86" (inapplicable) and # "armeabi-v6 with VFP" (is forced to be ON) ABIs. # # ANDROID_NO_UNDEFINED=ON - set ON to show all undefined symbols as linker # errors even if they are not used. # # ANDROID_SO_UNDEFINED=OFF - set ON to allow undefined symbols in shared # libraries. Automatically turned for NDK r5x and r6x due to GLESv2 # problems. # # LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary # files. See additional details below. # # ANDROID_SET_OBSOLETE_VARIABLES=ON - if set, then toolchain defines some # obsolete variables which were used by previous versions of this file for # backward compatibility. # # ANDROID_STL=gnustl_static - specify the runtime to use. # # Possible values are: # none -> Do not configure the runtime. # system -> Use the default minimal system C++ runtime library. # Implies -fno-rtti -fno-exceptions. # Is not available for standalone toolchain. # system_re -> Use the default minimal system C++ runtime library. # Implies -frtti -fexceptions. # Is not available for standalone toolchain. # gabi++_static -> Use the GAbi++ runtime as a static library. # Implies -frtti -fno-exceptions. # Available for NDK r7 and newer. # Is not available for standalone toolchain. # gabi++_shared -> Use the GAbi++ runtime as a shared library. # Implies -frtti -fno-exceptions. # Available for NDK r7 and newer. # Is not available for standalone toolchain. # stlport_static -> Use the STLport runtime as a static library. # Implies -fno-rtti -fno-exceptions for NDK before r7. # Implies -frtti -fno-exceptions for NDK r7 and newer. # Is not available for standalone toolchain. # stlport_shared -> Use the STLport runtime as a shared library. # Implies -fno-rtti -fno-exceptions for NDK before r7. # Implies -frtti -fno-exceptions for NDK r7 and newer. # Is not available for standalone toolchain. # gnustl_static -> Use the GNU STL as a static library. # Implies -frtti -fexceptions. # gnustl_shared -> Use the GNU STL as a shared library. # Implies -frtti -fno-exceptions. # Available for NDK r7b and newer. # Silently degrades to gnustl_static if not available. # # ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on # chosen runtime. If disabled, then the user is responsible for settings # these options. # # 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 or MIPS 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. # # Change Log: # - initial version December 2010 # - 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 # - 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 # - 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 # - July 2011 # [~] fixed options caching # [~] search for all supported NDK versions # [~] allowed spaces in NDK path # - September 2011 # [~] updated for NDK r6b # - 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 # - 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 # - February 2012 # [+] updated for NDK r7b # [~] fixed cmake try_compile() command # [~] Fix for missing install_name_tool on OS X # - 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 # - April 2012 # [+] updated for NDK r7c # [~] fixed most of problems with compiler/linker flags and caching # [+] added option ANDROID_FUNCTION_LEVEL_LINKING # - May 2012 # [+] updated for NDK r8 # [+] added mips architecture support # - August 2012 # [+] updated for NDK r8b # [~] all intermediate files generated by toolchain are moved to CMakeFiles # [~] libstdc++ and libsupc are removed from explicit link libraries # [+] added CCache support (via NDK_CCACHE environment or cmake variable) # [+] added gold linker support for NDK r8b # [~] fixed mips linker flags for NDK r8b # - September 2012 # [+] added NDK release name detection (see ANDROID_NDK_RELEASE) # [+] added support for all C++ runtimes from NDK # (system, gabi++, stlport, gnustl) # [+] improved warnings on known issues of NDKs # [~] use gold linker as default if available (NDK r8b) # [~] globally turned off rpath # [~] compiler options are aligned with NDK r8b # - October 2012 # [~] fixed C++ linking: explicitly link with math library (OpenCV #2426) # - November 2012 # [+] updated for NDK r8c # [+] added support for clang compiler # - December 2012 # [+] suppress warning about unused CMAKE_TOOLCHAIN_FILE variable # [+] adjust API level to closest compatible as NDK does # [~] fixed ccache full path search # [+] updated for NDK r8d # [~] compiler options are aligned with NDK r8d # - March 2013 # [+] updated for NDK r8e (x86 version) # [+] support x86_64 version of NDK # - April 2013 # [+] support non-release NDK layouts (from Linaro git and Android git) # [~] automatically detect if explicit link to crtbegin_*.o is needed # - June 2013 # [~] fixed stl include path for standalone toolchain made by NDK >= r8c # - July 2013 # [+] updated for NDK r9 # - November 2013 # [+] updated for NDK r9b # - December 2013 # [+] updated for NDK r9c # - January 2014 # [~] fix copying of shared STL # - April 2014 # [+] updated for NDK r9d # ------------------------------------------------------------------------------ cmake_minimum_required( VERSION 2.6.3 ) if( DEFINED CMAKE_CROSSCOMPILING ) # subsequent toolchain loading is not really needed return() endif() if( CMAKE_TOOLCHAIN_FILE ) # touch toolchain variable only to suppress "unused variable" warning endif() get_property( _CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE ) if( _CMAKE_IN_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 ) # rpath makes low sence for Android set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." ) set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r9d -r9c -r9b -r9 -r8e -r8d -r8c -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) if(NOT DEFINED ANDROID_NDK_SEARCH_PATHS) if( CMAKE_HOST_WIN32 ) file( TO_CMAKE_PATH "$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_SUPPORTED_ABIS_mipsel "mips" ) set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 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}" ) file( TO_CMAKE_PATH "${__value}" ${var_name} ) if( __obsolete AND NOT _CMAKE_IN_TRY_COMPILE ) 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 AND NOT _CMAKE_IN_TRY_COMPILE ) message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) endif() break() endif() endif() endif() endforeach() unset( __value ) unset( __values ) unset( __obsolete ) elseif( __test_path ) file( TO_CMAKE_PATH "${${var_name}}" ${var_name} ) endif() unset( __test_path ) endmacro() macro( __DETECT_NATIVE_API_LEVEL _var _path ) SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" ) 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 ) if( EXISTS "${_root}" ) file( GLOB __gccExePath RELATIVE "${_root}/bin/" "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) __LIST_FILTER( __gccExePath "^[.].*" ) list( LENGTH __gccExePath __gccExePathsCount ) if( NOT __gccExePathsCount EQUAL 1 AND NOT _CMAKE_IN_TRY_COMPILE ) message( WARNING "Could not 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 ) else() set( ${_var} "" ) endif() endmacro() # fight against cygwin set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") mark_as_advanced( ANDROID_FORBID_SYGWIN ) if( ANDROID_FORBID_SYGWIN ) if( CYGWIN ) message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." ) endif() if( CMAKE_HOST_WIN32 ) # remove cygwin from PATH set( __new_path "$ENV{PATH}") __LIST_FILTER( __new_path "cygwin" ) set(ENV{PATH} "${__new_path}") unset(__new_path) endif() endif() # detect current host platform if( NOT DEFINED ANDROID_NDK_HOST_X64 AND (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64" OR CMAKE_HOST_APPLE) ) set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" ) mark_as_advanced( ANDROID_NDK_HOST_X64 ) endif() set( TOOL_OS_SUFFIX "" ) if( CMAKE_HOST_APPLE ) set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86_64" ) set( ANDROID_NDK_HOST_SYSTEM_NAME2 "darwin-x86" ) elseif( CMAKE_HOST_WIN32 ) set( ANDROID_NDK_HOST_SYSTEM_NAME "windows-x86_64" ) set( ANDROID_NDK_HOST_SYSTEM_NAME2 "windows" ) set( TOOL_OS_SUFFIX ".exe" ) elseif( CMAKE_HOST_UNIX ) set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86_64" ) set( ANDROID_NDK_HOST_SYSTEM_NAME2 "linux-x86" ) else() message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) endif() if( NOT ANDROID_NDK_HOST_X64 ) set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) 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 ) set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" FORCE ) set( BUILD_WITH_ANDROID_NDK True ) if( EXISTS "${ANDROID_NDK}/RELEASE.TXT" ) file( STRINGS "${ANDROID_NDK}/RELEASE.TXT" ANDROID_NDK_RELEASE_FULL LIMIT_COUNT 1 REGEX r[0-9]+[a-z]? ) string( REGEX MATCH r[0-9]+[a-z]? ANDROID_NDK_RELEASE "${ANDROID_NDK_RELEASE_FULL}" ) else() set( ANDROID_NDK_RELEASE "r1x" ) set( ANDROID_NDK_RELEASE_FULL "unreleased" ) endif() 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" FORCE ) 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 toolchain. 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 ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) endif() # android NDK layout if( BUILD_WITH_ANDROID_NDK ) if( NOT DEFINED ANDROID_NDK_LAYOUT ) # try to automatically detect the layout if( EXISTS "${ANDROID_NDK}/RELEASE.TXT") set( ANDROID_NDK_LAYOUT "RELEASE" ) elseif( EXISTS "${ANDROID_NDK}/../../linux-x86/toolchain/" ) set( ANDROID_NDK_LAYOUT "LINARO" ) elseif( EXISTS "${ANDROID_NDK}/../../gcc/" ) set( ANDROID_NDK_LAYOUT "ANDROID" ) endif() endif() set( ANDROID_NDK_LAYOUT "${ANDROID_NDK_LAYOUT}" CACHE STRING "The inner layout of NDK" ) mark_as_advanced( ANDROID_NDK_LAYOUT ) if( ANDROID_NDK_LAYOUT STREQUAL "LINARO" ) set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../${ANDROID_NDK_HOST_SYSTEM_NAME}/toolchain" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) elseif( ANDROID_NDK_LAYOUT STREQUAL "ANDROID" ) set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../gcc/${ANDROID_NDK_HOST_SYSTEM_NAME}/arm" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) else() # ANDROID_NDK_LAYOUT STREQUAL "RELEASE" set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/toolchains" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME2}" ) endif() get_filename_component( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK_TOOLCHAINS_PATH}" ABSOLUTE ) # try to detect change of NDK if( CMAKE_AR ) string( LENGTH "${ANDROID_NDK_TOOLCHAINS_PATH}" __length ) string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK_TOOLCHAINS_PATH ) message( FATAL_ERROR "It is not possible to change the path to the NDK on subsequent CMake run. You must remove all generated files from your build folder first. " ) endif() unset( __androidNdkPreviousPath ) unset( __length ) endif() endif() # get all the details about standalone toolchain if( BUILD_WITH_STANDALONE_TOOLCHAIN ) __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) set( __availableToolchains "standalone" ) __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${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" ) elseif( __availableToolchainMachines MATCHES mipsel ) set( __availableToolchainArchs "mipsel" ) endif() execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" -dumpversion OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9]+)?" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) if( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/bin/clang${TOOL_OS_SUFFIX}" ) list( APPEND __availableToolchains "standalone-clang" ) list( APPEND __availableToolchainMachines ${__availableToolchainMachines} ) list( APPEND __availableToolchainArchs ${__availableToolchainArchs} ) list( APPEND __availableToolchainCompilerVersions ${__availableToolchainCompilerVersions} ) endif() endif() macro( __GLOB_NDK_TOOLCHAINS __availableToolchainsVar __availableToolchainsLst __toolchain_subpath ) foreach( __toolchain ${${__availableToolchainsLst}} ) if( "${__toolchain}" MATCHES "-clang3[.][0-9]$" AND NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}${__toolchain_subpath}" ) string( REGEX REPLACE "-clang3[.][0-9]$" "-4.6" __gcc_toolchain "${__toolchain}" ) else() set( __gcc_toolchain "${__toolchain}" ) endif() __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK_TOOLCHAINS_PATH}/${__gcc_toolchain}${__toolchain_subpath}" ) if( __machine ) string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9x]+)?$" __version "${__gcc_toolchain}" ) if( __machine MATCHES i686 ) set( __arch "x86" ) elseif( __machine MATCHES arm ) set( __arch "arm" ) elseif( __machine MATCHES mipsel ) set( __arch "mipsel" ) endif() list( APPEND __availableToolchainMachines "${__machine}" ) list( APPEND __availableToolchainArchs "${__arch}" ) list( APPEND __availableToolchainCompilerVersions "${__version}" ) list( APPEND ${__availableToolchainsVar} "${__toolchain}" ) endif() unset( __gcc_toolchain ) endforeach() endmacro() # 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 "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) set( __availableToolchains "" ) set( __availableToolchainMachines "" ) set( __availableToolchainArchs "" ) set( __availableToolchainCompilerVersions "" ) if( ANDROID_TOOLCHAIN_NAME AND EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_TOOLCHAIN_NAME}/" ) # do not go through all toolchains if we know the name set( __availableToolchainsLst "${ANDROID_TOOLCHAIN_NAME}" ) __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) if( __availableToolchains ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) endif() endif() endif() if( NOT __availableToolchains ) file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" ) if( __availableToolchains ) list(SORT __availableToolchainsLst) # we need clang to go after gcc endif() __LIST_FILTER( __availableToolchainsLst "^[.]" ) __LIST_FILTER( __availableToolchainsLst "llvm" ) __LIST_FILTER( __availableToolchainsLst "renderscript" ) __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) if( __availableToolchains ) set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) endif() endif() endif() if( NOT __availableToolchains ) message( FATAL_ERROR "Could not find any working toolchain in the NDK. Probably your Android NDK is broken." ) endif() endif() # build list of available 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() # 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 ) # set target ABI options if( ANDROID_ABI STREQUAL "x86" ) set( X86 true ) set( ANDROID_NDK_ABI_NAME "x86" ) set( ANDROID_ARCH_NAME "x86" ) set( ANDROID_ARCH_FULLNAME "x86" ) set( ANDROID_LLVM_TRIPLE "i686-none-linux-android" ) set( CMAKE_SYSTEM_PROCESSOR "i686" ) elseif( ANDROID_ABI STREQUAL "mips" ) set( MIPS true ) set( ANDROID_NDK_ABI_NAME "mips" ) set( ANDROID_ARCH_NAME "mips" ) set( ANDROID_ARCH_FULLNAME "mipsel" ) set( ANDROID_LLVM_TRIPLE "mipsel-none-linux-android" ) set( CMAKE_SYSTEM_PROCESSOR "mips" ) elseif( ANDROID_ABI STREQUAL "armeabi" ) set( ARMEABI true ) set( ANDROID_NDK_ABI_NAME "armeabi" ) set( ANDROID_ARCH_NAME "arm" ) set( ANDROID_ARCH_FULLNAME "arm" ) set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 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( ANDROID_ARCH_FULLNAME "arm" ) set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 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( ANDROID_ARCH_FULLNAME "arm" ) set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 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( ANDROID_ARCH_FULLNAME "arm" ) set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 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( ANDROID_ARCH_FULLNAME "arm" ) set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 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() 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 ) list( SORT __availableToolchains ) string( REPLACE ";" "\n * " toolchains_list "${__availableToolchains}" ) set( toolchains_list " * ${toolchains_list}") message( FATAL_ERROR "Specified toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing in your NDK or broken. Please verify that your NDK is working or select another compiler toolchain. To configure the toolchain set CMake variable ANDROID_TOOLCHAIN_NAME to one of the following values:\n${toolchains_list}\n" ) endif() list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) if( NOT __toolchainArch STREQUAL ANDROID_ARCH_FULLNAME ) message( SEND_ERROR "Selected toolchain \"${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_FULLNAME ) list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) string( REPLACE "x" "99" __toolchainVersion "${__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 ${__toolchainIdx} ANDROID_COMPILER_VERSION ) unset( __toolchainIdx ) unset( __availableToolchains ) unset( __availableToolchainMachines ) unset( __availableToolchainArchs ) unset( __availableToolchainCompilerVersions ) # choose native API level __INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) string( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) # adjust API level set( __real_api_level ${ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME}} ) foreach( __level ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) if( NOT __level GREATER ANDROID_NATIVE_API_LEVEL AND NOT __level LESS __real_api_level ) set( __real_api_level ${__level} ) endif() endforeach() if( __real_api_level AND NOT ANDROID_NATIVE_API_LEVEL EQUAL __real_api_level ) message( STATUS "Adjusting Android API level 'android-${ANDROID_NATIVE_API_LEVEL}' to 'android-${__real_api_level}'") set( ANDROID_NATIVE_API_LEVEL ${__real_api_level} ) endif() unset(__real_api_level) # validate list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) if( __levelIdx EQUAL -1 ) message( SEND_ERROR "Specified Android native API level 'android-${ANDROID_NATIVE_API_LEVEL}' is not supported by your NDK/toolchain." ) else() if( BUILD_WITH_ANDROID_NDK ) __DETECT_NATIVE_API_LEVEL( __realApiLevel "${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 ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) endif() endif() unset( __levelIdx ) # remember target ABI set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) if( CMAKE_VERSION VERSION_GREATER "2.8" ) list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME} ) set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME}} ) endif() # runtime choice (STL, rtti, exceptions) if( NOT ANDROID_STL ) # honor legacy ANDROID_USE_STLPORT if( DEFINED ANDROID_USE_STLPORT ) if( ANDROID_USE_STLPORT ) set( ANDROID_STL stlport_static ) endif() message( WARNING "You are using an obsolete variable ANDROID_USE_STLPORT to select the STL variant. Use -DANDROID_STL=stlport_static instead." ) endif() if( NOT ANDROID_STL ) set( ANDROID_STL gnustl_static ) endif() endif() set( ANDROID_STL "${ANDROID_STL}" CACHE STRING "C++ runtime" ) set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and exceptions support based on C++ runtime" ) mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES ) if( BUILD_WITH_ANDROID_NDK ) if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$") message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". The possible values are: none -> Do not configure the runtime. system -> Use the default minimal system C++ runtime library. system_re -> Same as system but with rtti and exceptions. gabi++_static -> Use the GAbi++ runtime as a static library. gabi++_shared -> Use the GAbi++ runtime as a shared library. stlport_static -> Use the STLport runtime as a static library. stlport_shared -> Use the STLport runtime as a shared library. gnustl_static -> (default) Use the GNU STL as a static library. gnustl_shared -> Use the GNU STL as a shared library. " ) endif() elseif( BUILD_WITH_STANDALONE_TOOLCHAIN ) if( NOT "${ANDROID_STL}" MATCHES "^(none|gnustl_static|gnustl_shared)$") message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". The possible values are: none -> Do not configure the runtime. gnustl_static -> (default) Use the GNU STL as a static library. gnustl_shared -> Use the GNU STL as a shared library. " ) endif() endif() unset( ANDROID_RTTI ) unset( ANDROID_EXCEPTIONS ) unset( ANDROID_STL_INCLUDE_DIRS ) unset( __libstl ) unset( __libsupcxx ) if( NOT _CMAKE_IN_TRY_COMPILE AND ANDROID_NDK_RELEASE STREQUAL "r7b" AND ARMEABI_V7A AND NOT VFPV3 AND ANDROID_STL MATCHES "gnustl" ) message( WARNING "The GNU STL armeabi-v7a binaries from NDK r7b can crash non-NEON devices. The files provided with NDK r7b were not configured properly, resulting in crashes on Tegra2-based devices and others when trying to use certain floating-point functions (e.g., cosf, sinf, expf). You are strongly recommended to switch to another NDK release. " ) endif() if( NOT _CMAKE_IN_TRY_COMPILE AND X86 AND ANDROID_STL MATCHES "gnustl" AND ANDROID_NDK_RELEASE STREQUAL "r6" ) message( WARNING "The x86 system header file from NDK r6 has incorrect definition for ptrdiff_t. You are recommended to upgrade to a newer NDK release or manually patch the header: See https://android.googlesource.com/platform/development.git f907f4f9d4e56ccc8093df6fee54454b8bcab6c2 diff --git a/ndk/platforms/android-9/arch-x86/include/machine/_types.h b/ndk/platforms/android-9/arch-x86/include/machine/_types.h index 5e28c64..65892a1 100644 --- a/ndk/platforms/android-9/arch-x86/include/machine/_types.h +++ b/ndk/platforms/android-9/arch-x86/include/machine/_types.h @@ -51,7 +51,11 @@ typedef long int ssize_t; #endif #ifndef _PTRDIFF_T #define _PTRDIFF_T -typedef long ptrdiff_t; +# ifdef __ANDROID__ + typedef int ptrdiff_t; +# else + typedef long ptrdiff_t; +# endif #endif " ) endif() # setup paths and STL for standalone toolchain if( BUILD_WITH_STANDALONE_TOOLCHAIN ) set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) if( NOT ANDROID_STL STREQUAL "none" ) set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/include/c++/${ANDROID_COMPILER_VERSION}" ) if( NOT EXISTS "${ANDROID_STL_INCLUDE_DIRS}" ) # old location ( pre r8c ) set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}" ) endif() if( ARMEABI_V7A AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) else() list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) endif() # always search static GNU STL to get the location of libsupc++.a if( ARMEABI_V7A AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) elseif( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}" ) elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libstdc++.a" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb" ) elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libstdc++.a" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) endif() if( __libstl ) set( __libsupcxx "${__libstl}/libsupc++.a" ) set( __libstl "${__libstl}/libstdc++.a" ) endif() if( NOT EXISTS "${__libsupcxx}" ) message( FATAL_ERROR "The required libstdsupc++.a is missing in your standalone toolchain. Usually it happens because of bug in make-standalone-toolchain.sh script from NDK r7, r7b and r7c. You need to either upgrade to newer NDK or manually copy $ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a to ${__libsupcxx} " ) endif() if( ANDROID_STL STREQUAL "gnustl_shared" ) if( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) endif() endif() endif() endif() # clang if( "${ANDROID_TOOLCHAIN_NAME}" STREQUAL "standalone-clang" ) set( ANDROID_COMPILER_IS_CLANG 1 ) execute_process( COMMAND "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/clang${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE ANDROID_CLANG_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE ) string( REGEX MATCH "[0-9]+[.][0-9]+" ANDROID_CLANG_VERSION "${ANDROID_CLANG_VERSION}") elseif( "${ANDROID_TOOLCHAIN_NAME}" MATCHES "-clang3[.][0-9]?$" ) string( REGEX MATCH "3[.][0-9]$" ANDROID_CLANG_VERSION "${ANDROID_TOOLCHAIN_NAME}") string( REGEX REPLACE "-clang${ANDROID_CLANG_VERSION}$" "-4.6" ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) if( NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}/bin/clang${TOOL_OS_SUFFIX}" ) message( FATAL_ERROR "Could not find the Clang compiler driver" ) endif() set( ANDROID_COMPILER_IS_CLANG 1 ) set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) else() set( ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) unset( ANDROID_COMPILER_IS_CLANG CACHE ) endif() string( REPLACE "." "" _clang_name "clang${ANDROID_CLANG_VERSION}" ) if( NOT EXISTS "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" ) set( _clang_name "clang" ) endif() # setup paths and STL for NDK if( BUILD_WITH_ANDROID_NDK ) set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) if( ANDROID_STL STREQUAL "none" ) # do nothing elseif( ANDROID_STL STREQUAL "system" ) set( ANDROID_RTTI OFF ) set( ANDROID_EXCEPTIONS OFF ) set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) elseif( ANDROID_STL STREQUAL "system_re" ) set( ANDROID_RTTI ON ) set( ANDROID_EXCEPTIONS ON ) set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) elseif( ANDROID_STL MATCHES "gabi" ) if( ANDROID_NDK_RELEASE STRLESS "r7" ) message( FATAL_ERROR "gabi++ is not awailable in your NDK. You have to upgrade to NDK r7 or newer to use gabi++.") endif() set( ANDROID_RTTI ON ) set( ANDROID_EXCEPTIONS OFF ) set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/gabi++/include" ) set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gabi++/libs/${ANDROID_NDK_ABI_NAME}/libgabi++_static.a" ) elseif( ANDROID_STL MATCHES "stlport" ) if( NOT ANDROID_NDK_RELEASE STRLESS "r8d" ) set( ANDROID_EXCEPTIONS ON ) else() set( ANDROID_EXCEPTIONS OFF ) endif() if( ANDROID_NDK_RELEASE STRLESS "r7" ) set( ANDROID_RTTI OFF ) else() set( ANDROID_RTTI ON ) endif() set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) set( __libstl "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) elseif( ANDROID_STL MATCHES "gnustl" ) set( ANDROID_EXCEPTIONS ON ) set( ANDROID_RTTI ON ) if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) if( ARMEABI_V7A AND ANDROID_COMPILER_VERSION VERSION_EQUAL "4.7" AND ANDROID_NDK_RELEASE STREQUAL "r8d" ) # gnustl binary for 4.7 compiler is buggy :( # TODO: look for right fix set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/4.6" ) else() set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) endif() else() set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" ) endif() set( ANDROID_STL_INCLUDE_DIRS "${__libstl}/include" "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/include" ) if( EXISTS "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) else() set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) endif() else() message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" ) endif() # find libsupc++.a - rtti & exceptions if( ANDROID_STL STREQUAL "system_re" OR ANDROID_STL MATCHES "gnustl" ) set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r8b or newer if( NOT EXISTS "${__libsupcxx}" ) set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r7-r8 endif() if( NOT EXISTS "${__libsupcxx}" ) # before r7 if( ARMEABI_V7A ) if( ANDROID_FORCE_ARM_BUILD ) set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) else() set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) endif() elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD ) set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) else() set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) endif() endif() if( NOT EXISTS "${__libsupcxx}") message( ERROR "Could not find libsupc++.a for a chosen platform. Either your NDK is not supported or is broken.") endif() endif() endif() # case of shared STL linkage if( ANDROID_STL MATCHES "shared" AND DEFINED __libstl ) string( REPLACE "_static.a" "_shared.so" __libstl "${__libstl}" ) # TODO: check if .so file exists before the renaming endif() # ccache support __INIT_VARIABLE( _ndk_ccache NDK_CCACHE ENV_NDK_CCACHE ) if( _ndk_ccache ) if( DEFINED NDK_CCACHE AND NOT EXISTS NDK_CCACHE ) unset( NDK_CCACHE CACHE ) endif() find_program( NDK_CCACHE "${_ndk_ccache}" DOC "The path to ccache binary") else() unset( NDK_CCACHE CACHE ) endif() unset( _ndk_ccache ) # setup the cross-compiler if( NOT CMAKE_C_COMPILER ) if( NDK_CCACHE AND NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) set( CMAKE_C_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C compiler" ) set( CMAKE_CXX_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C++ compiler" ) if( ANDROID_COMPILER_IS_CLANG ) set( CMAKE_C_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") else() set( CMAKE_C_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") endif() else() if( ANDROID_COMPILER_IS_CLANG ) set( CMAKE_C_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") set( CMAKE_CXX_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") else() set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler" ) set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler" ) endif() endif() set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "assembler" ) 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${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) endif() set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" ) if( CMAKE_VERSION VERSION_LESS 2.8.5 ) set( CMAKE_ASM_COMPILER_ARG1 "-c" ) endif() 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() # Force set compilers because standard identification works badly for us include( CMakeForceCompiler ) CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) if( ANDROID_COMPILER_IS_CLANG ) set( CMAKE_C_COMPILER_ID Clang) endif() set( CMAKE_C_PLATFORM_ID Linux ) set( CMAKE_C_SIZEOF_DATA_PTR 4 ) set( CMAKE_C_HAS_ISYSROOT 1 ) set( CMAKE_C_COMPILER_ABI ELF ) CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) if( ANDROID_COMPILER_IS_CLANG ) set( CMAKE_CXX_COMPILER_ID Clang) endif() 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 ) set( CMAKE_CXX_SOURCE_FILE_EXTENSIONS cc cp cxx cpp CPP c++ C ) # 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) set( CMAKE_ASM_SOURCE_FILE_EXTENSIONS s S asm ) # flags and definitions remove_definitions( -DANDROID ) add_definitions( -DANDROID ) if( ANDROID_SYSROOT MATCHES "[ ;\"]" ) if( CMAKE_HOST_WIN32 ) # try to convert path to 8.3 form file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "@echo %~s1" ) execute_process( COMMAND "$ENV{ComSpec}" /c "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "${ANDROID_SYSROOT}" OUTPUT_VARIABLE __path OUTPUT_STRIP_TRAILING_WHITESPACE RESULT_VARIABLE __result ERROR_QUIET ) if( __result EQUAL 0 ) file( TO_CMAKE_PATH "${__path}" ANDROID_SYSROOT ) set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) else() set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) endif() else() set( ANDROID_CXX_FLAGS "'--sysroot=${ANDROID_SYSROOT}'" ) endif() if( NOT _CMAKE_IN_TRY_COMPILE ) # quotes can break try_compile and compiler identification message(WARNING "Path to your Android NDK (or toolchain) has non-alphanumeric symbols.\nThe build might be broken.\n") endif() else() set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) endif() # NDK flags if( ARMEABI OR ARMEABI_V7A ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fpic -funwind-tables" ) if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) set( ANDROID_CXX_FLAGS_RELEASE "-mthumb -fomit-frame-pointer -fno-strict-aliasing" ) set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) if( NOT ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -finline-limit=64" ) endif() else() # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI set( ANDROID_CXX_FLAGS_RELEASE "-marm -fomit-frame-pointer -fstrict-aliasing" ) set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) if( NOT ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) endif() endif() elseif( X86 ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) if( NOT ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) else() set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fPIC" ) endif() set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) elseif( MIPS ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fpic -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0" ) set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer" ) set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer" ) if( NOT ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" ) set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) endif() elseif() set( ANDROID_CXX_FLAGS_RELEASE "" ) set( ANDROID_CXX_FLAGS_DEBUG "" ) endif() set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) # good/necessary when porting desktop libraries if( NOT X86 AND NOT ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "-Wno-psabi ${ANDROID_CXX_FLAGS}" ) endif() if( NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.6" ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -no-canonical-prefixes" ) # see https://android-review.googlesource.com/#/c/47564/ endif() # 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=vfpv3-d16" ) endif() elseif( ARMEABI_V6 ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) # vfp == vfpv2 elseif( ARMEABI ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) endif() if( ANDROID_STL MATCHES "gnustl" AND (EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}") ) set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) else() set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) endif() # STL if( EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}" ) if( EXISTS "${__libstl}" ) set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libstl}\"" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libstl}\"" ) set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libstl}\"" ) endif() if( EXISTS "${__libsupcxx}" ) set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) # C objects: set( CMAKE_C_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_C_CREATE_SHARED_MODULE "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" ) set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) set( CMAKE_C_CREATE_SHARED_LIBRARY "${CMAKE_C_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) set( CMAKE_C_CREATE_SHARED_MODULE "${CMAKE_C_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) endif() if( ANDROID_STL MATCHES "gnustl" ) if( NOT EXISTS "${ANDROID_LIBM_PATH}" ) set( ANDROID_LIBM_PATH -lm ) endif() set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} ${ANDROID_LIBM_PATH}" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} ${ANDROID_LIBM_PATH}" ) set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIBM_PATH}" ) endif() endif() # variables controlling optional build flags if (ANDROID_NDK_RELEASE STRLESS "r7") # libGLESv2.so in NDK's prior to r7 refers to missing external 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() __INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON ) __INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON ) __INIT_VARIABLE( ANDROID_GOLD_LINKER VALUES ON ) __INIT_VARIABLE( ANDROID_NOEXECSTACK VALUES ON ) __INIT_VARIABLE( ANDROID_RELRO VALUES ON ) set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" ) set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) set( ANDROID_FUNCTION_LEVEL_LINKING ${ANDROID_FUNCTION_LEVEL_LINKING} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) set( ANDROID_GOLD_LINKER ${ANDROID_GOLD_LINKER} CACHE BOOL "Enables gold linker (only avaialble for NDK r8b for ARM and x86 architectures on linux-86 and darwin-x86 hosts)" ) set( ANDROID_NOEXECSTACK ${ANDROID_NOEXECSTACK} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) set( ANDROID_RELRO ${ANDROID_RELRO} CACHE BOOL "Enables RELRO - a memory corruption mitigation technique" ) mark_as_advanced( ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO ) # linker flags set( ANDROID_LINKER_FLAGS "" ) if( ARMEABI_V7A ) # this is *required* to use the following linker flags that routes around # a CPU bug in some Cortex-A8 implementations: set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--fix-cortex-a8" ) endif() if( ANDROID_NO_UNDEFINED ) if( MIPS ) # there is some sysroot-related problem in mips linker... if( NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined -Wl,-rpath-link,${ANDROID_SYSROOT}/usr/lib" ) endif() else() set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined" ) endif() endif() if( ANDROID_SO_UNDEFINED ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) endif() if( ANDROID_FUNCTION_LEVEL_LINKING ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" ) endif() if( ANDROID_COMPILER_VERSION VERSION_EQUAL "4.6" ) if( ANDROID_GOLD_LINKER AND (CMAKE_HOST_UNIX OR ANDROID_NDK_RELEASE STRGREATER "r8b") AND (ARMEABI OR ARMEABI_V7A OR X86) ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold" ) elseif( ANDROID_NDK_RELEASE STRGREATER "r8b") set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=bfd" ) elseif( ANDROID_NDK_RELEASE STREQUAL "r8b" AND ARMEABI AND NOT _CMAKE_IN_TRY_COMPILE ) message( WARNING "The default bfd linker from arm GCC 4.6 toolchain can fail with 'unresolvable R_ARM_THM_CALL relocation' error message. See https://code.google.com/p/android/issues/detail?id=35342 On Linux and OS X host platform you can workaround this problem using gold linker (default). Rerun cmake with -DANDROID_GOLD_LINKER=ON option in case of problems. " ) endif() endif() # version 4.6 if( ANDROID_NOEXECSTACK ) if( ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Xclang -mnoexecstack" ) else() set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Wa,--noexecstack" ) endif() set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,noexecstack" ) endif() if( ANDROID_RELRO ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now" ) endif() if( ANDROID_COMPILER_IS_CLANG ) set( ANDROID_CXX_FLAGS "-Qunused-arguments ${ANDROID_CXX_FLAGS}" ) if( ARMEABI_V7A AND NOT ANDROID_FORCE_ARM_BUILD ) set( ANDROID_CXX_FLAGS_RELEASE "-target thumbv7-none-linux-androideabi ${ANDROID_CXX_FLAGS_RELEASE}" ) set( ANDROID_CXX_FLAGS_DEBUG "-target ${ANDROID_LLVM_TRIPLE} ${ANDROID_CXX_FLAGS_DEBUG}" ) else() set( ANDROID_CXX_FLAGS "-target ${ANDROID_LLVM_TRIPLE} ${ANDROID_CXX_FLAGS}" ) endif() if( BUILD_WITH_ANDROID_NDK ) set( ANDROID_CXX_FLAGS "-gcc-toolchain ${ANDROID_TOOLCHAIN_ROOT} ${ANDROID_CXX_FLAGS}" ) endif() endif() # cache flags set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" ) set( CMAKE_C_FLAGS "" CACHE STRING "c flags" ) set( CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c++ Release flags" ) set( CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c Release flags" ) set( CMAKE_CXX_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c++ Debug flags" ) set( CMAKE_C_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c Debug flags" ) set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags" ) set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags" ) set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags" ) # put flags to cache (for debug purpose only) set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Android specific c/c++ flags" ) set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE}" CACHE INTERNAL "Android specific c/c++ Release flags" ) set( ANDROID_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG}" CACHE INTERNAL "Android specific c/c++ Debug flags" ) set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Android specific c/c++ linker flags" ) # finish flags set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) set( CMAKE_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}" ) set( CMAKE_C_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}" ) set( CMAKE_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}" ) set( CMAKE_C_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}" ) set( CMAKE_SHARED_LINKER_FLAGS "${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} ${CMAKE_EXE_LINKER_FLAGS}" ) if( MIPS AND BUILD_WITH_ANDROID_NDK AND ANDROID_NDK_RELEASE STREQUAL "r8" ) set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_SHARED_LINKER_FLAGS}" ) set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_MODULE_LINKER_FLAGS}" ) set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.x ${CMAKE_EXE_LINKER_FLAGS}" ) endif() # configure rtti if( DEFINED ANDROID_RTTI AND ANDROID_STL_FORCE_FEATURES ) if( ANDROID_RTTI ) set( CMAKE_CXX_FLAGS "-frtti ${CMAKE_CXX_FLAGS}" ) else() set( CMAKE_CXX_FLAGS "-fno-rtti ${CMAKE_CXX_FLAGS}" ) endif() endif() # configure exceptios if( DEFINED ANDROID_EXCEPTIONS AND ANDROID_STL_FORCE_FEATURES ) if( ANDROID_EXCEPTIONS ) set( CMAKE_CXX_FLAGS "-fexceptions ${CMAKE_CXX_FLAGS}" ) set( CMAKE_C_FLAGS "-fexceptions ${CMAKE_C_FLAGS}" ) else() set( CMAKE_CXX_FLAGS "-fno-exceptions ${CMAKE_CXX_FLAGS}" ) set( CMAKE_C_FLAGS "-fno-exceptions ${CMAKE_C_FLAGS}" ) endif() endif() # global includes and link directories include_directories( SYSTEM "${ANDROID_SYSROOT}/usr/include" ${ANDROID_STL_INCLUDE_DIRS} ) get_filename_component(__android_install_path "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ABSOLUTE) # avoid CMP0015 policy warning link_directories( "${__android_install_path}" ) # detect if need link crtbegin_so.o explicitly if( NOT DEFINED ANDROID_EXPLICIT_CRT_LINK ) set( __cmd "${CMAKE_CXX_CREATE_SHARED_LIBRARY}" ) string( REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}" __cmd "${__cmd}" ) string( REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" __cmd "${__cmd}" ) string( REPLACE "<CMAKE_SHARED_LIBRARY_CXX_FLAGS>" "${CMAKE_CXX_FLAGS}" __cmd "${__cmd}" ) string( REPLACE "<LANGUAGE_COMPILE_FLAGS>" "" __cmd "${__cmd}" ) string( REPLACE "<LINK_FLAGS>" "${CMAKE_SHARED_LINKER_FLAGS}" __cmd "${__cmd}" ) string( REPLACE "<CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>" "-shared" __cmd "${__cmd}" ) string( REPLACE "<CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG>" "" __cmd "${__cmd}" ) string( REPLACE "<TARGET_SONAME>" "" __cmd "${__cmd}" ) string( REPLACE "<TARGET>" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain_crtlink_test.so" __cmd "${__cmd}" ) string( REPLACE "<OBJECTS>" "\"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" __cmd "${__cmd}" ) string( REPLACE "<LINK_LIBRARIES>" "" __cmd "${__cmd}" ) separate_arguments( __cmd ) foreach( __var ANDROID_NDK ANDROID_NDK_TOOLCHAINS_PATH ANDROID_STANDALONE_TOOLCHAIN ) if( ${__var} ) set( __tmp "${${__var}}" ) separate_arguments( __tmp ) string( REPLACE "${__tmp}" "${${__var}}" __cmd "${__cmd}") endif() endforeach() string( REPLACE "'" "" __cmd "${__cmd}" ) string( REPLACE "\"" "" __cmd "${__cmd}" ) execute_process( COMMAND ${__cmd} RESULT_VARIABLE __cmd_result OUTPUT_QUIET ERROR_QUIET ) if( __cmd_result EQUAL 0 ) set( ANDROID_EXPLICIT_CRT_LINK ON ) else() set( ANDROID_EXPLICIT_CRT_LINK OFF ) endif() endif() if( ANDROID_EXPLICIT_CRT_LINK ) set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) endif() # 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(NOT _CMAKE_IN_TRY_COMPILE) 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" ) endif() # copy shaed stl library to build directory if( NOT _CMAKE_IN_TRY_COMPILE AND __libstl MATCHES "[.]so$" ) get_filename_component( __libstlname "${__libstl}" NAME ) execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${__libstl}" "${LIBRARY_OUTPUT_PATH}/${__libstlname}" RESULT_VARIABLE __fileCopyProcess ) if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${LIBRARY_OUTPUT_PATH}/${__libstlname}") message( SEND_ERROR "Failed copying of ${__libstl} to the ${LIBRARY_OUTPUT_PATH}/${__libstlname}" ) endif() unset( __fileCopyProcess ) unset( __libstlname ) endif() # 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( ${VAR} "x86" ) elseif( "${TOOLCHAIN_FLAG}" STREQUAL "MIPS" ) set( ${VAR} "mips" ) 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 NDK_CCACHE LIBRARY_OUTPUT_PATH_ROOT ANDROID_FORBID_SYGWIN ANDROID_SET_OBSOLETE_VARIABLES ANDROID_NDK_HOST_X64 ANDROID_NDK ANDROID_NDK_LAYOUT ANDROID_STANDALONE_TOOLCHAIN ANDROID_TOOLCHAIN_NAME ANDROID_ABI ANDROID_NATIVE_API_LEVEL ANDROID_STL ANDROID_STL_FORCE_FEATURES ANDROID_FORCE_ARM_BUILD ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO ANDROID_LIBM_PATH ANDROID_EXPLICIT_CRT_LINK ) if( DEFINED ${__var} ) if( "${__var}" MATCHES " ") set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" ) else() set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" ) endif() endif() endforeach() file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" ) unset( __toolchain_config ) endif() # force cmake to produce / instead of \ in build commands for Ninja generator if( CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_HOST_WIN32 ) # it is a bad hack after all # CMake generates Ninja makefiles with UNIX paths only if it thinks that we are going to build with MinGW set( CMAKE_COMPILER_IS_MINGW TRUE ) # tell CMake that we are MinGW set( CMAKE_CROSSCOMPILING TRUE ) # stop recursion enable_language( C ) enable_language( CXX ) # unset( CMAKE_COMPILER_IS_MINGW ) # can't unset because CMake does not convert back-slashes in response files without it unset( MINGW ) 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", "mips" # ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version) # ANDROID_STL : gnustl_static/gnustl_shared/stlport_static/stlport_shared/gabi++_static/gabi++_shared/system_re/system/none # 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 # ANDROID_GOLD_LINKER : ON/OFF # ANDROID_NOEXECSTACK : ON/OFF # ANDROID_RELRO : ON/OFF # ANDROID_FORCE_ARM_BUILD : ON/OFF # ANDROID_STL_FORCE_FEATURES : ON/OFF # ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF # Can be set only at the first run: # ANDROID_NDK # ANDROID_STANDALONE_TOOLCHAIN # ANDROID_TOOLCHAIN_NAME : the NDK name of compiler toolchain # ANDROID_NDK_HOST_X64 : try to use x86_64 toolchain (default for x64 host systems) # ANDROID_NDK_LAYOUT : the inner NDK structure (RELEASE, LINARO, ANDROID) # LIBRARY_OUTPUT_PATH_ROOT : <any valid path> # NDK_CCACHE : <path to your ccache executable> # 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_USE_STLPORT : superseded by ANDROID_STL=stlport_static # 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 # MIPS : TRUE if configured for mips # 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", "x86" or "mips" depending on ANDROID_ABI # ANDROID_NDK_RELEASE : one of r5, r5b, r5c, r6, r6b, r7, r7b, r7c, r8, r8b, r8c, r8d, r8e, r9, r9b, r9c, r9d; set only for NDK # ANDROID_ARCH_NAME : "arm" or "x86" or "mips" depending on ANDROID_ABI # ANDROID_SYSROOT : path to the compiler sysroot # TOOL_OS_SUFFIX : "" or ".exe" depending on host platform # ANDROID_COMPILER_IS_CLANG : TRUE if clang compiler is used # 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_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_CLANG_TOOLCHAIN_ROOT : path to clang tools # ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK # ANDROID_STL_INCLUDE_DIRS : stl include paths # ANDROID_RTTI : if rtti is enabled by the runtime # ANDROID_EXCEPTIONS : if exceptions are enabled by the runtime # ANDROID_GCC_TOOLCHAIN_NAME : read-only, differs from ANDROID_TOOLCHAIN_NAME only if clang is used # ANDROID_CLANG_VERSION : version of clang compiler if clang is used # ANDROID_LIBM_PATH : path to libm.so (set to something like $(TOP)/out/target/product/<product_name>/obj/lib/libm.so) to workaround unresolved `sincos` # # Defaults: # ANDROID_DEFAULT_NDK_API_LEVEL # ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} # ANDROID_NDK_SEARCH_PATHS # ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH # ANDROID_SUPPORTED_ABIS_${ARCH} # ANDROID_SUPPORTED_NDK_VERSIONS