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Fixed more line endings.
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AndroidCMake/android.toolchain.cmake
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AndroidCMake/android.toolchain.cmake
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# ------------------------------------------------------------------------------
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# Android CMake toolchain file, for use with the Android NDK r5-r8
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# Requires cmake 2.6.3 or newer (2.8.5 or newer is recommended).
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# See home page: http://code.google.com/p/android-cmake/
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#
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# The file is mantained by the OpenCV project. And also can be found at
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# http://code.opencv.org/projects/opencv/repository/revisions/master/changes/android/android.toolchain.cmake
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#
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# Note: There are now two flavors of this toolchain file: 32-bit toolchain and 64-bit toolchain.
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#
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# Usage Linux:
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# $ export ANDROID_NDK_ROOT=/absolute/path/to/the/android-ndk
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# $ mkdir build && cd build
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# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
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# $ make -j8
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#
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# Usage Linux (using standalone toolchain):
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# $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain
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# $ mkdir build && cd build
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# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
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# $ make -j8
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#
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# Usage Windows:
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# You need native port of make to build your project.
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# Android NDK r7 (or newer) already has make.exe on board.
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# For older NDK you have to install it separately.
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# For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm
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#
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# $ SET ANDROID_NDK_ROOT=C:\absolute\path\to\the\android-ndk
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# $ mkdir build && cd build
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# $ cmake.exe -G"MinGW Makefiles"
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# -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake
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# -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK_ROOT%\prebuilt\windows\bin\make.exe" ..
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# $ "%ANDROID_NDK_ROOT%\prebuilt\windows\bin\make.exe"
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#
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#
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# Options (can be set as cmake parameters: -D<option_name>=<value>):
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# ANDROID_NDK=/opt/android-ndk - path to the NDK root.
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# Can be set as environment variable ANDROID_NDK_ROOT. Can be set only at first cmake run.
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#
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# ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the
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# standalone toolchain. This option overrides ANDROID_NDK
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# (and subsequentally the enviroment variable ANDROID_NDK_ROOT).
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# Can be set as environment variable. Can be set only at first cmake run.
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#
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# ANDROID_ABI=armeabi-v7a - specifies the target Application Binary
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# Interface (ABI). This option nearly matches to the APP_ABI variable
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# used by ndk-build tool from Android NDK.
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#
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# Possible targets are:
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# "armeabi" - matches to the NDK ABI with the same name.
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# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
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# "armeabi-v7a" - matches to the NDK ABI with the same name.
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# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
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# "armeabi-v7a with NEON" - same as armeabi-v7a, but
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# sets NEON as floating-point unit
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# "armeabi-v7a with VFPV3" - same as armeabi-v7a, but
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# sets VFPV3 as floating-point unit (has 32 registers instead of 16).
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# "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP.
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# "x86" - matches to the NDK ABI with the same name.
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# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
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# "mips" - matches to the NDK ABI with the same name
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# (not testes on real devices)
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#
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# ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for.
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# Option is read-only when standalone toolchain used.
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#
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# ANDROID_FORCE_ARM_BUILD=OFF - set true to generate 32-bit ARM instructions
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# instead of Thumb-1. Is not available for "x86" (inapplicable) and
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# "armeabi-v6 with VFP" (forced) ABIs.
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#
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# ANDROID_NO_UNDEFINED=ON - set true to show all undefined symbols as linker
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# errors even if they are not used.
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#
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# ANDROID_SO_UNDEFINED=OFF - set true to allow undefined symbols in shared
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# libraries. Automatically turned on for NDK r5x and r6x due to GLESv2
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# problems.
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#
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# LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary
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# files. See additional details below.
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#
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# ANDROID_SET_OBSOLETE_VARIABLES=ON - it set, then toolchain defines some
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# obsolete variables which were set by previous versions of this file for
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# backward compatibility.
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#
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#
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# What?:
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# android-cmake toolchain searches for NDK/toolchain in the following order:
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# ANDROID_NDK - cmake parameter
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# ANDROID_NDK_ROOT - environment variable
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# (ANDROID_NDK - environment variable as legacy fallback)
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# ANDROID_STANDALONE_TOOLCHAIN - cmake parameter
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# ANDROID_STANDALONE_TOOLCHAIN - environment variable
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# ANDROID_NDK - default locations
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# ANDROID_STANDALONE_TOOLCHAIN - default locations
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#
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# Make sure to do the following in your scripts:
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# SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" )
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# SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" )
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# The flags will be prepopulated with critical flags, so don't loose them.
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# Also be aware that toolchain also sets configuration-specific compiler
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# flags and linker flags.
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#
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# ANDROID and BUILD_ANDROID will be set to true, you may test any of these
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# variables to make necessary Android-specific configuration changes.
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#
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# Also ARMEABI or ARMEABI_V7A or X86 will be set true, mutually exclusive.
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# NEON option will be set true if VFP is set to NEON.
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#
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# LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android
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# libraries will be installed.
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# Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be
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# under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}
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# (depending on the target ABI). This is convenient for Android packaging.
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#
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# Authors:
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# Ethan Rublee ethan.ruble@gmail.com
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# Andrey Kamaev andrey.kamaev@itseez.com
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# Eric Wing <ewing . public |-at-| gmail . com>
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#
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# Change Log:
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# - initial version December 2010
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# - modified April 2011
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# [+] added possibility to build with NDK (without standalone toolchain)
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# [+] support cross-compilation on Windows (native, no cygwin support)
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# [+] added compiler option to force "char" type to be signed
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# [+] added toolchain option to compile to 32-bit ARM instructions
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# [+] added toolchain option to disable SWIG search
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# [+] added platform "armeabi-v7a with VFPV3"
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# [~] ARM_TARGETS renamed to ARM_TARGET
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# [+] EXECUTABLE_OUTPUT_PATH is set by toolchain (required on Windows)
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# [~] Fixed bug with ANDROID_API_LEVEL variable
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# [~] turn off SWIG search if it is not found first time
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# - modified May 2011
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# [~] ANDROID_LEVEL is renamed to ANDROID_API_LEVEL
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# [+] ANDROID_API_LEVEL is detected by toolchain if not specified
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# [~] added guard to prevent changing of output directories on the first
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# cmake pass
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# [~] toolchain exits with error if ARM_TARGET is not recognized
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# - modified June 2011
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# [~] default NDK path is updated for version r5c
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# [+] variable CMAKE_SYSTEM_PROCESSOR is set based on ARM_TARGET
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# [~] toolchain install directory is added to linker paths
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# [-] removed SWIG-related stuff from toolchain
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# [+] added macro find_host_package, find_host_program to search
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# packages/programs on the host system
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# [~] fixed path to STL library
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# - modified July 2011
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# [~] fixed options caching
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# [~] search for all supported NDK versions
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# [~] allowed spaces in NDK path
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# - modified September 2011
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# [~] updated for NDK r6b
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# - modified November 2011
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# [*] rewritten for NDK r7
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# [+] x86 toolchain support (experimental)
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# [+] added "armeabi-v6 with VFP" ABI for ARMv6 processors.
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# [~] improved compiler and linker flags management
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# [+] support different build flags for Release and Debug configurations
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# [~] by default compiler flags the same as used by ndk-build (but only
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# where reasonable)
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# [~] ANDROID_NDK_TOOLCHAIN_ROOT is splitted to ANDROID_STANDALONE_TOOLCHAIN
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# and ANDROID_TOOLCHAIN_ROOT
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# [~] ARM_TARGET is renamed to ANDROID_ABI
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# [~] ARMEABI_NDK_NAME is renamed to ANDROID_NDK_ABI_NAME
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# [~] ANDROID_API_LEVEL is renamed to ANDROID_NATIVE_API_LEVEL
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# - modified January 2012
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# [+] added stlport_static support (experimental)
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# [+] added special check for cygwin
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# [+] filtered out hidden files (starting with .) while globbing inside NDK
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# [+] automatically applied GLESv2 linkage fix for NDK revisions 5-6
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# [+] added ANDROID_GET_ABI_RAWNAME to get NDK ABI names by CMake flags
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# - modified February 2012
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# [+] updated for NDK r7b
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# [~] fixed cmake try_compile() command
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# [~] Fix for missing install_name_tool on OS X
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# - modified March 2012
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# [~] fixed incorrect C compiler flags
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# [~] fixed CMAKE_SYSTEM_PROCESSOR change on ANDROID_ABI change
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# [+] improved toolchain loading speed
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# [+] added assembler language support (.S)
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# [+] allowed preset search paths and extra search suffixes
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# - modified April 2012
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# [+] updated for NDK r7c
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# [~] fixed most of problems with compiler/linker flags and caching
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# [+] added option ANDROID_FUNCTION_LEVEL_LINKING
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# - modified May 2012
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# [+] updated for NDK r8
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# [+] added mips architecture support
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# - modified August 2012
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# [+] updated for NDK r8b
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# [~] all intermediate files generated by toolchain are moved into CMakeFiles
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# [~] libstdc++ and libsupc are removed from explicit link libraries
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# - modified August 2013 (EW)
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# [+] updated for NDK r9 (standalone)
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# [+] Addded Perl helper scripts to make it easier to build multiple architectures in one shot.
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# [~] Breaking change of behavior to so that ANDROID_STANDALONE_TOOLCHAIN overrides ANDROID_NDK because the latter uses semi-standard environmental variables that people may already have defined for other conflicting purposes.
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# [~] Changed environmental variable to look for ANDROID_NDK_ROOT because this is the semi-official/blessed one according to Google via the NDK mailing list. ANDROID_NDK is still checked for backwards compatibility.
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# [~] Changed a lot of flags to try to match stock Android more closely due build problems I was trying to track down. In the end, I lost track of which specific flags were the problem. See Additional Notes for flag differences between this and stock.
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# [~] Changed armeabi-v7a to use -mfpu=vfpv3-d16 instead of -mfpu=vfp to conform with stock Android.
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# [~] Changed VFPV3 mode to use -mfpu=vfpv3-d32
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# [~] Use --sysroot=${ANDROID_SYSROOT} to match stock Android
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# [~] Use -fstack-protector -no-canonical-prefixes -Wa,--noexecstack to match stock Android
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# [~] Use -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now to match stock Android
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# [~] Use -lc -lm to match stock Android
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# [~] Removed -fsigned-char and -Wno-psabi because these don't appear in stock Android
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# [~] Removed -f[no]exceptions flags from C flags because those are C++ options
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# [~] Changed arm debug optimization level to O0 from Os
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# [~] Added -funswitch-loops -finline-limit=300 to match stock Android
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# [~] Changed arm debug optimization level to O0 from Os
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# [~] Separated ANDROID_CXX_FLAGS into ANDROID_CXX_FLAGS and ANDROID_C_FLAGS
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# [*] Note: MIPs settings were not changed/tested.
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#
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#
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# (EW) Additional Notes:
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# Looking at the switches used by compiling the hello-jni example from ndk-build V=1 in r8d, I see the following compiler flags:
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# armeabi
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# -MMD -MP -MF /foo/hello-jni.o.d
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# -fpic -ffunction-sections -funwind-tables -fstack-protector
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# -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -no-canonical-prefixes
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# -march=armv5te -mtune=xscale -msoft-float
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# -mthumb
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# -Os -g -DNDEBUG
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# -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
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#
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# -O0 -UNDEBUG (debug only, not in release)
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# -marm -fno-omit-frame-pointer (debug only, not in release)
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#
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# -DANDROID -Wa,--noexecstack
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# armeabi-v7a
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# -MMD -MP -MF /foo/hello-jni.o.d
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# -fpic -ffunction-sections -funwind-tables -fstack-protector
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# -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -no-canonical-prefixes
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# -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16
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# -mthumb
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# -Os -g -DNDEBUG
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# -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
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#
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# -O0 -UNDEBUG (debug only, not in release)
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# -marm -fno-omit-frame-pointer (debug only, not in release)
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#
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# -DANDROID -Wa,--noexecstack
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# x86
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# -MMD -MP -MF /foo/hello-jni.o.d
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# -ffunction-sections -funwind-tables -no-canonical-prefixes -fstack-protector
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# -O2 -g -DNDEBUG
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# -fomit-frame-pointer -fstrict-aliasing -funswitch-loops -finline-limit=300
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#
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# -O0 -UNDEBUG (debug only, not in release)
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# -fno-omit-frame-pointer -fno-strict-aliasing (debug only, not in release)
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#
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# -DANDROID -Wa,--noexecstack
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# The link flags are:
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# armeabi
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# -Wl,-soname,libhello-jni.so -shared
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# --sysroot=/fee/android-ndk/platforms/android-14/arch-arm
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# /foo/hello-jni.o
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# -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
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# armeabi-v7a
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# -Wl,-soname,libhello-jni.so -shared
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# --sysroot=/fee/android-ndk/platforms/android-14/arch-arm
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# /foo/hello-jni.o
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# -no-canonical-prefixes -march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
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# x86
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# -Wl,-soname,libhello-jni.so -shared
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# --sysroot=/fee/android-ndk/platforms/android-14/arch-x86
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# /foo/hello-jni.o
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# -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
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# Some interesting observations are that debug doesn't have different flags, but overrides set flags with additional switches.
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# Differences from Stock Android:
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# This toolchain has deviated from the stock flags.
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#
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# I don't do the override technique as described directly above.
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#
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# -ffunction-sections has been separated into the option ANDROID_FUNCTION_LEVEL_LINKING.
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# But this also brings in -fdata-sections and the linker flags -Wl,--gc-sections which are not in the Android defaults
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#
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# -funwind-tables has been completely removed for arm by this file. It looks like the author intentionally did this for performance.
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#
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# Optimization flags are using O3 in this file as opposed to stock 02 for Release. It looks like the original authors have done some benchmarking so I am deferring to them.
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# I am however changing the Os to O0 for debug.
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#
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# ------------------------------------------------------------------------------
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cmake_minimum_required( VERSION 2.6.3 )
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if( DEFINED CMAKE_CROSSCOMPILING )
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# subsequent toolchain loading is not really needed
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return()
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endif()
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get_property(_CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
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if( _CMAKE_IN_TRY_COMPILE )
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include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL )
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endif()
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# this one is important
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set( CMAKE_SYSTEM_NAME Linux )
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# this one not so much
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set( CMAKE_SYSTEM_VERSION 1 )
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# There was an Android NDK bug with armv7 and vfpv3 in r7b which caused crashes according to
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# http://stackoverflow.com/questions/11831648/android-ndk-arm-build-settings-to-run-on-most-devices
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# Not supporting r7b or below seems wiser. Supporting ancient Android NDKs is rather pointless since part of the reason for the updates is to fix bugs.
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#set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r8d -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" )
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set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r9 -r8d -r8b -r8 -r7c "" )
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if(NOT DEFINED ANDROID_NDK_SEARCH_PATHS)
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if( CMAKE_HOST_WIN32 )
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file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS )
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set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" )
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else()
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file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS )
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set( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "${ANDROID_NDK_SEARCH_PATHS}/NVPACK/android-ndk" )
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endif()
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endif()
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if(NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH)
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set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain )
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endif()
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set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" )
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set( ANDROID_SUPPORTED_ABIS_x86 "x86" )
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set( ANDROID_SUPPORTED_ABIS_mipsel "mips" )
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set( ANDROID_DEFAULT_NDK_API_LEVEL 8 )
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set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 )
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set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 )
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macro( __LIST_FILTER listvar regex )
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if( ${listvar} )
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foreach( __val ${${listvar}} )
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if( __val MATCHES "${regex}" )
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list( REMOVE_ITEM ${listvar} "${__val}" )
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endif()
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endforeach()
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endif()
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endmacro()
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macro( __INIT_VARIABLE var_name )
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set( __test_path 0 )
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foreach( __var ${ARGN} )
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if( __var STREQUAL "PATH" )
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set( __test_path 1 )
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break()
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endif()
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endforeach()
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if( __test_path AND NOT EXISTS "${${var_name}}" )
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unset( ${var_name} CACHE )
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endif()
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if( "${${var_name}}" STREQUAL "" )
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set( __values 0 )
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foreach( __var ${ARGN} )
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if( __var STREQUAL "VALUES" )
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set( __values 1 )
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elseif( NOT __var STREQUAL "PATH" )
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set( __obsolete 0 )
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if( __var MATCHES "^OBSOLETE_.*$" )
369
-
string( REPLACE "OBSOLETE_" "" __var "${__var}" )
370
-
set( __obsolete 1 )
371
-
endif()
372
-
if( __var MATCHES "^ENV_.*$" )
373
-
string( REPLACE "ENV_" "" __var "${__var}" )
374
-
set( __value "$ENV{${__var}}" )
375
-
elseif( DEFINED ${__var} )
376
-
set( __value "${${__var}}" )
377
-
else()
378
-
if( __values )
379
-
set( __value "${__var}" )
380
-
else()
381
-
set( __value "" )
382
-
endif()
383
-
endif()
384
-
if( NOT "${__value}" STREQUAL "" )
385
-
if( __test_path )
386
-
if( EXISTS "${__value}" )
387
-
set( ${var_name} "${__value}" )
388
-
if( __obsolete )
389
-
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." )
390
-
endif()
391
-
break()
392
-
endif()
393
-
else()
394
-
set( ${var_name} "${__value}" )
395
-
if( __obsolete )
396
-
message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." )
397
-
endif()
398
-
break()
399
-
endif()
400
-
endif()
401
-
endif()
402
-
endforeach()
403
-
unset( __value )
404
-
unset( __values )
405
-
unset( __obsolete )
406
-
endif()
407
-
unset( __test_path )
408
-
endmacro()
409
-
410
-
macro( __DETECT_NATIVE_API_LEVEL _var _path )
411
-
SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" )
412
-
FILE( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" )
413
-
if( NOT __apiFileContent )
414
-
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." )
415
-
endif()
416
-
string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" )
417
-
unset( __apiFileContent )
418
-
unset( __ndkApiLevelRegex )
419
-
endmacro()
420
-
421
-
macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root )
422
-
file( GLOB __gccExePath "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" )
423
-
__LIST_FILTER( __gccExePath "bin/[.].*-gcc${TOOL_OS_SUFFIX}$" )
424
-
list( LENGTH __gccExePath __gccExePathsCount )
425
-
if( NOT __gccExePathsCount EQUAL 1 )
426
-
message( WARNING "Could not uniquely determine machine name for compiler from ${_root}." )
427
-
set( ${_var} "" )
428
-
else()
429
-
get_filename_component( __gccExeName "${__gccExePath}" NAME_WE )
430
-
string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" )
431
-
endif()
432
-
unset( __gccExePath )
433
-
unset( __gccExePathsCount )
434
-
unset( __gccExeName )
435
-
endmacro()
436
-
437
-
macro( __COPY_IF_DIFFERENT _source _destination )
438
-
execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${_source}" "${_destination}" RESULT_VARIABLE __fileCopyProcess )
439
-
if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${_destination}")
440
-
message( SEND_ERROR "Failed copying of ${_source} to the ${_destination}" )
441
-
endif()
442
-
unset( __fileCopyProcess )
443
-
endmacro()
444
-
445
-
446
-
# stl version: by default gnustl_static will be used
447
-
set( ANDROID_USE_STLPORT FALSE CACHE BOOL "Experimental: use stlport_static instead of gnustl_static")
448
-
mark_as_advanced( ANDROID_USE_STLPORT )
449
-
450
-
# fight against cygwin
451
-
set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools")
452
-
mark_as_advanced( ANDROID_FORBID_SYGWIN )
453
-
if( ANDROID_FORBID_SYGWIN )
454
-
if( CYGWIN )
455
-
message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." )
456
-
endif()
457
-
458
-
if( CMAKE_HOST_WIN32 )
459
-
# remove cygwin from PATH
460
-
set( __new_path "$ENV{PATH}")
461
-
__LIST_FILTER( __new_path "cygwin" )
462
-
set(ENV{PATH} "${__new_path}")
463
-
unset(__new_path)
464
-
endif()
465
-
endif()
466
-
467
-
# detect current host platform
468
-
set( TOOL_OS_SUFFIX "" )
469
-
if( CMAKE_HOST_APPLE )
470
-
set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86" )
471
-
elseif( CMAKE_HOST_WIN32 )
472
-
set( ANDROID_NDK_HOST_SYSTEM_NAME "windows" )
473
-
set( TOOL_OS_SUFFIX ".exe" )
474
-
elseif( CMAKE_HOST_UNIX )
475
-
set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86" )
476
-
else()
477
-
message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" )
478
-
endif()
479
-
480
-
# see if we have path to Android NDK
481
-
# but only if the user hasn't tried to provide a standalone toolchain as an override.
482
-
if( NOT ANDROID_STANDALONE_TOOLCHAIN )
483
-
__INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK )
484
-
# According to a Google engineer on the Android NDK mailing list, the semi-official/blessed environmental variable is ANDROID_NDK_ROOT, not ANDROID_NDK.
485
-
if ( NOT ANDROID_NDK )
486
-
__INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK_ROOT )
487
-
endif( NOT ANDROID_NDK )
488
-
endif( NOT ANDROID_STANDALONE_TOOLCHAIN )
489
-
490
-
if( NOT ANDROID_NDK )
491
-
# see if we have path to Android standalone toolchain
492
-
__INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT )
493
-
494
-
if( NOT ANDROID_STANDALONE_TOOLCHAIN )
495
-
#try to find Android NDK in one of the the default locations
496
-
set( __ndkSearchPaths )
497
-
foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} )
498
-
foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} )
499
-
list( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" )
500
-
endforeach()
501
-
endforeach()
502
-
__INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} )
503
-
unset( __ndkSearchPaths )
504
-
505
-
if( ANDROID_NDK )
506
-
message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" )
507
-
message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" )
508
-
else()
509
-
#try to find Android standalone toolchain in one of the the default locations
510
-
__INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH )
511
-
512
-
if( ANDROID_STANDALONE_TOOLCHAIN )
513
-
message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" )
514
-
message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" )
515
-
endif( ANDROID_STANDALONE_TOOLCHAIN )
516
-
endif( ANDROID_NDK )
517
-
endif( NOT ANDROID_STANDALONE_TOOLCHAIN )
518
-
endif( NOT ANDROID_NDK )
519
-
520
-
# remember found paths
521
-
if( ANDROID_NDK )
522
-
get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE )
523
-
# try to detect change
524
-
if( CMAKE_AR )
525
-
string( LENGTH "${ANDROID_NDK}" __length )
526
-
string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath )
527
-
if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK )
528
-
message( FATAL_ERROR "It is not possible to change path to the NDK on subsequent run." )
529
-
endif()
530
-
unset( __androidNdkPreviousPath )
531
-
unset( __length )
532
-
endif()
533
-
set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" )
534
-
set( BUILD_WITH_ANDROID_NDK True )
535
-
elseif( ANDROID_STANDALONE_TOOLCHAIN )
536
-
get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE )
537
-
# try to detect change
538
-
if( CMAKE_AR )
539
-
string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length )
540
-
string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath )
541
-
if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN )
542
-
message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." )
543
-
endif()
544
-
unset( __androidStandaloneToolchainPreviousPath )
545
-
unset( __length )
546
-
endif()
547
-
set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" )
548
-
set( BUILD_WITH_STANDALONE_TOOLCHAIN True )
549
-
else()
550
-
list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH)
551
-
message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolcahin.
552
-
You should either set an environment variable:
553
-
export ANDROID_NDK=~/my-android-ndk
554
-
or
555
-
export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain
556
-
or put the toolchain or NDK in the default path:
557
-
sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH}
558
-
sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" )
559
-
endif()
560
-
561
-
# get all the details about standalone toolchain
562
-
if( BUILD_WITH_STANDALONE_TOOLCHAIN )
563
-
__DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" )
564
-
set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
565
-
set( __availableToolchains "standalone" )
566
-
__DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" )
567
-
if( NOT __availableToolchainMachines )
568
-
message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." )
569
-
endif()
570
-
if( __availableToolchainMachines MATCHES i686 )
571
-
set( __availableToolchainArchs "x86" )
572
-
elseif( __availableToolchainMachines MATCHES arm )
573
-
set( __availableToolchainArchs "arm" )
574
-
elseif( __availableToolchainMachines MATCHES mipsel )
575
-
set( __availableToolchainArchs "mipsel" )
576
-
endif()
577
-
if( ANDROID_COMPILER_VERSION )
578
-
# do not run gcc every time because it is relatevely expencive
579
-
set( __availableToolchainCompilerVersions "${ANDROID_COMPILER_VERSION}" )
580
-
else()
581
-
execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version
582
-
OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE )
583
-
# arm-linux-androideabi-gcc (GCC) 4.6 20120106 (prerelease)
584
-
string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
585
-
if( NOT __availableToolchainCompilerVersions )
586
-
# arm-linux-androideabi-gcc (GCC) 4.8
587
-
execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version
588
-
OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE )
589
-
string( REGEX MATCH "[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
590
-
endif()
591
-
endif()
592
-
endif()
593
-
594
-
# get all the details about NDK
595
-
if( BUILD_WITH_ANDROID_NDK )
596
-
file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" )
597
-
string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" )
598
-
file( GLOB __availableToolchains RELATIVE "${ANDROID_NDK}/toolchains" "${ANDROID_NDK}/toolchains/*" )
599
-
__LIST_FILTER( __availableToolchains "^[.]" )
600
-
set( __availableToolchainMachines "" )
601
-
set( __availableToolchainArchs "" )
602
-
set( __availableToolchainCompilerVersions "" )
603
-
foreach( __toolchain ${__availableToolchains} )
604
-
__DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK}/toolchains/${__toolchain}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
605
-
if( __machine )
606
-
string( REGEX MATCH "[0-9]+[.][0-9]+[.]*[0-9]*$" __version "${__toolchain}" )
607
-
string( REGEX MATCH "^[^-]+" __arch "${__toolchain}" )
608
-
list( APPEND __availableToolchainMachines "${__machine}" )
609
-
list( APPEND __availableToolchainArchs "${__arch}" )
610
-
list( APPEND __availableToolchainCompilerVersions "${__version}" )
611
-
else()
612
-
list( REMOVE_ITEM __availableToolchains "${__toolchain}" )
613
-
endif()
614
-
endforeach()
615
-
if( NOT __availableToolchains )
616
-
message( FATAL_ERROR "Could not any working toolchain in the NDK. Probably your Android NDK is broken." )
617
-
endif()
618
-
endif()
619
-
620
-
# build list of available ABIs
621
-
if( NOT ANDROID_SUPPORTED_ABIS )
622
-
set( ANDROID_SUPPORTED_ABIS "" )
623
-
set( __uniqToolchainArchNames ${__availableToolchainArchs} )
624
-
list( REMOVE_DUPLICATES __uniqToolchainArchNames )
625
-
list( SORT __uniqToolchainArchNames )
626
-
foreach( __arch ${__uniqToolchainArchNames} )
627
-
list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} )
628
-
endforeach()
629
-
unset( __uniqToolchainArchNames )
630
-
if( NOT ANDROID_SUPPORTED_ABIS )
631
-
message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." )
632
-
endif()
633
-
endif()
634
-
635
-
# choose target ABI
636
-
__INIT_VARIABLE( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ANDROID_SUPPORTED_ABIS} )
637
-
# verify that target ABI is supported
638
-
list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx )
639
-
if( __androidAbiIdx EQUAL -1 )
640
-
string( REPLACE ";" "\", \"", PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" )
641
-
message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain.
642
-
Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\"
643
-
" )
644
-
endif()
645
-
unset( __androidAbiIdx )
646
-
647
-
# remember target ABI
648
-
set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE )
649
-
650
-
# set target ABI options
651
-
if( ANDROID_ABI STREQUAL "x86" )
652
-
set( X86 true )
653
-
set( ANDROID_NDK_ABI_NAME "x86" )
654
-
set( ANDROID_ARCH_NAME "x86" )
655
-
set( ANDROID_ARCH_FULLNAME "x86" )
656
-
set( CMAKE_SYSTEM_PROCESSOR "i686" )
657
-
elseif( ANDROID_ABI STREQUAL "mips" )
658
-
set( MIPS true )
659
-
set( ANDROID_NDK_ABI_NAME "mips" )
660
-
set( ANDROID_ARCH_NAME "mips" )
661
-
set( ANDROID_ARCH_FULLNAME "mipsel" )
662
-
set( CMAKE_SYSTEM_PROCESSOR "mips" )
663
-
elseif( ANDROID_ABI STREQUAL "armeabi" )
664
-
set( ARMEABI true )
665
-
set( ANDROID_NDK_ABI_NAME "armeabi" )
666
-
set( ANDROID_ARCH_NAME "arm" )
667
-
set( ANDROID_ARCH_FULLNAME "arm" )
668
-
set( CMAKE_SYSTEM_PROCESSOR "armv5te" )
669
-
elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" )
670
-
set( ARMEABI_V6 true )
671
-
set( ANDROID_NDK_ABI_NAME "armeabi" )
672
-
set( ANDROID_ARCH_NAME "arm" )
673
-
set( ANDROID_ARCH_FULLNAME "arm" )
674
-
set( CMAKE_SYSTEM_PROCESSOR "armv6" )
675
-
# need always fallback to older platform
676
-
set( ARMEABI true )
677
-
elseif( ANDROID_ABI STREQUAL "armeabi-v7a")
678
-
set( ARMEABI_V7A true )
679
-
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
680
-
set( ANDROID_ARCH_NAME "arm" )
681
-
set( ANDROID_ARCH_FULLNAME "arm" )
682
-
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
683
-
elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" )
684
-
set( ARMEABI_V7A true )
685
-
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
686
-
set( ANDROID_ARCH_NAME "arm" )
687
-
set( ANDROID_ARCH_FULLNAME "arm" )
688
-
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
689
-
set( VFPV3 true )
690
-
elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" )
691
-
set( ARMEABI_V7A true )
692
-
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
693
-
set( ANDROID_ARCH_NAME "arm" )
694
-
set( ANDROID_ARCH_FULLNAME "arm" )
695
-
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
696
-
set( VFPV3 true )
697
-
set( NEON true )
698
-
else()
699
-
message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." )
700
-
endif()
701
-
702
-
if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" )
703
-
# really dirty hack
704
-
# it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run...
705
-
file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" )
706
-
endif()
707
-
708
-
set( ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME}} CACHE INTERNAL "ANDROID_ABI can be changed only to one of these ABIs. Changing to any other ABI requires to reset cmake cache." )
709
-
if( CMAKE_VERSION VERSION_GREATER "2.8" )
710
-
list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME} )
711
-
set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME}} )
712
-
endif()
713
-
714
-
if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 )
715
-
__INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF )
716
-
set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE )
717
-
mark_as_advanced( ANDROID_FORCE_ARM_BUILD )
718
-
else()
719
-
unset( ANDROID_FORCE_ARM_BUILD CACHE )
720
-
endif()
721
-
722
-
# choose toolchain
723
-
if( ANDROID_TOOLCHAIN_NAME )
724
-
list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx )
725
-
if( __toolchainIdx EQUAL -1 )
726
-
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" )
727
-
endif()
728
-
list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch )
729
-
if( NOT __toolchainArch STREQUAL ANDROID_ARCH_FULLNAME )
730
-
message( SEND_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." )
731
-
endif()
732
-
else()
733
-
set( __toolchainIdx -1 )
734
-
set( __applicableToolchains "" )
735
-
set( __toolchainMaxVersion "0.0.0" )
736
-
list( LENGTH __availableToolchains __availableToolchainsCount )
737
-
math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" )
738
-
foreach( __idx RANGE ${__availableToolchainsCount} )
739
-
list( GET __availableToolchainArchs ${__idx} __toolchainArch )
740
-
if( __toolchainArch STREQUAL ANDROID_ARCH_FULLNAME )
741
-
list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion )
742
-
if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion )
743
-
set( __toolchainMaxVersion "${__toolchainVersion}" )
744
-
set( __toolchainIdx ${__idx} )
745
-
endif()
746
-
endif()
747
-
endforeach()
748
-
unset( __availableToolchainsCount )
749
-
unset( __toolchainMaxVersion )
750
-
unset( __toolchainVersion )
751
-
endif()
752
-
unset( __toolchainArch )
753
-
if( __toolchainIdx EQUAL -1 )
754
-
message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." )
755
-
endif()
756
-
list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME )
757
-
list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME )
758
-
list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION )
759
-
set( ANDROID_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" CACHE INTERNAL "Name of toolchain used" )
760
-
set( ANDROID_COMPILER_VERSION "${ANDROID_COMPILER_VERSION}" CACHE INTERNAL "compiler version from selected toolchain" )
761
-
unset( __toolchainIdx )
762
-
unset( __availableToolchains )
763
-
unset( __availableToolchainMachines )
764
-
unset( __availableToolchainArchs )
765
-
unset( __availableToolchainCompilerVersions )
766
-
767
-
# choose native API level
768
-
__INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL )
769
-
string( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" )
770
-
# validate
771
-
list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx )
772
-
if( __levelIdx EQUAL -1 )
773
-
message( SEND_ERROR "Specified Android native API level (${ANDROID_NATIVE_API_LEVEL}) is not supported by your NDK/toolchain." )
774
-
endif()
775
-
unset( __levelIdx )
776
-
if( BUILD_WITH_ANDROID_NDK )
777
-
__DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" )
778
-
if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL )
779
-
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." )
780
-
endif()
781
-
unset( __realApiLevel )
782
-
endif()
783
-
set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE )
784
-
if( CMAKE_VERSION VERSION_GREATER "2.8" )
785
-
list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS )
786
-
set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
787
-
endif()
788
-
789
-
# setup paths
790
-
if( BUILD_WITH_STANDALONE_TOOLCHAIN )
791
-
set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" )
792
-
set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" )
793
-
set( __stlLibPath "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" )
794
-
endif()
795
-
if( BUILD_WITH_ANDROID_NDK )
796
-
set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
797
-
set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" )
798
-
if( ANDROID_USE_STLPORT )
799
-
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" )
800
-
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}" )
801
-
else()
802
-
if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" )
803
-
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/include" )
804
-
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}" )
805
-
else()
806
-
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include" )
807
-
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}" )
808
-
endif()
809
-
endif()
810
-
endif()
811
-
812
-
# specify the cross compiler
813
-
set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" )
814
-
set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" )
815
-
set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "Assembler" )
816
-
if( CMAKE_VERSION VERSION_LESS 2.8.5 )
817
-
set( CMAKE_ASM_COMPILER_ARG1 "-c" )
818
-
endif()
819
-
# there may be a way to make cmake deduce these TODO deduce the rest of the tools
820
-
set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" )
821
-
set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" )
822
-
set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" )
823
-
set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" )
824
-
set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" )
825
-
set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" )
826
-
set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" )
827
-
set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" )
828
-
if( APPLE )
829
-
find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool )
830
-
if( NOT CMAKE_INSTALL_NAME_TOOL )
831
-
message( FATAL_ERROR "Could not find install_name_tool, please check your installation." )
832
-
endif()
833
-
mark_as_advanced( CMAKE_INSTALL_NAME_TOOL )
834
-
endif()
835
-
836
-
# export directories
837
-
set( ANDROID_SYSTEM_INCLUDE_DIRS "" )
838
-
set( ANDROID_SYSTEM_LIB_DIRS "" )
839
-
840
-
# setup output directories
841
-
set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" )
842
-
set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" )
843
-
844
-
if(NOT _CMAKE_IN_TRY_COMPILE)
845
-
if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" )
846
-
set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" )
847
-
else()
848
-
set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" )
849
-
endif()
850
-
set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" )
851
-
endif()
852
-
853
-
# includes
854
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_SYSROOT}/usr/include" )
855
-
if( __stlIncludePath AND EXISTS "${__stlIncludePath}" )
856
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlIncludePath}" )
857
-
endif()
858
-
859
-
# c++ bits includes
860
-
if( __stlLibPath AND EXISTS "${__stlLibPath}/include" )
861
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlLibPath}/include" )
862
-
endif()
863
-
if( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb/bits" )
864
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb" )
865
-
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" )
866
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" )
867
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" )
868
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" )
869
-
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/bits" )
870
-
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" )
871
-
endif()
872
-
873
-
# flags and definitions
874
-
if(ANDROID_SYSROOT MATCHES "[ ;\"]")
875
-
set( ANDROID_C_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" )
876
-
set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" )
877
-
# quotes will break try_compile and compiler identification
878
-
message(WARNING "Your Android system root has non-alphanumeric symbols. It can break compiler features detection and the whole build.")
879
-
else()
880
-
set( ANDROID_C_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
881
-
set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
882
-
endif()
883
-
884
-
remove_definitions( -DANDROID )
885
-
add_definitions( -DANDROID )
886
-
887
-
# Force set compilers because standard identification works badly for us
888
-
include( CMakeForceCompiler )
889
-
CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU )
890
-
set( CMAKE_C_PLATFORM_ID Linux )
891
-
set( CMAKE_C_SIZEOF_DATA_PTR 4 )
892
-
set( CMAKE_C_HAS_ISYSROOT 1 )
893
-
set( CMAKE_C_COMPILER_ABI ELF )
894
-
CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU )
895
-
set( CMAKE_CXX_PLATFORM_ID Linux )
896
-
set( CMAKE_CXX_SIZEOF_DATA_PTR 4 )
897
-
set( CMAKE_CXX_HAS_ISYSROOT 1 )
898
-
set( CMAKE_CXX_COMPILER_ABI ELF )
899
-
# force ASM compiler (required for CMake < 2.8.5)
900
-
set( CMAKE_ASM_COMPILER_ID_RUN TRUE )
901
-
set( CMAKE_ASM_COMPILER_ID GNU )
902
-
set( CMAKE_ASM_COMPILER_WORKS TRUE )
903
-
set( CMAKE_ASM_COMPILER_FORCED TRUE )
904
-
set( CMAKE_COMPILER_IS_GNUASM 1)
905
-
906
-
# NDK flags
907
-
if( ARMEABI OR ARMEABI_V7A )
908
-
# NDK also defines -ffunction-sections -funwind-tables but they result in worse OpenCV performance
909
-
set( _CMAKE_CXX_FLAGS "-fpic -fstack-protector -no-canonical-prefixes -Wa,--noexecstack" )
910
-
set( _CMAKE_C_FLAGS "-fpic -fstack-protector -no-canonical-prefixes -Wa,--noexecstack" )
911
-
remove_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
912
-
add_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
913
-
# extra arm-specific flags
914
-
# The default Android build process does not pass -fsigned-char.
915
-
# set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fsigned-char" )
916
-
# set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" )
917
-
elseif( X86 )
918
-
set( _CMAKE_CXX_FLAGS "-no-canonical-prefixes -funwind-tables -fstack-protector -Wa,--noexecstack" )
919
-
set( _CMAKE_C_FLAGS "-no-canonical-prefixes -funwind-tables -fstack-protector -Wa,--noexecstack" )
920
-
elseif( MIPS )
921
-
set( _CMAKE_CXX_FLAGS "-fpic -Wno-psabi -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0 -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" )
922
-
set( _CMAKE_C_FLAGS "-fpic -Wno-psabi -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0 -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" )
923
-
# The default Android build process does not pass -fsigned-char.
924
-
# set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fsigned-char" )
925
-
# set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" )
926
-
else()
927
-
set( _CMAKE_CXX_FLAGS "" )
928
-
set( _CMAKE_C_FLAGS "" )
929
-
endif()
930
-
931
-
if( ANDROID_USE_STLPORT )
932
-
set( _CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" )
933
-
# set( _CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" )
934
-
else()
935
-
set( _CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS} -frtti -fexceptions" )
936
-
# set( _CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" )
937
-
endif()
938
-
939
-
# release and debug flags
940
-
if( ARMEABI OR ARMEABI_V7A )
941
-
if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 )
942
-
# It is recommended to use the -mthumb compiler flag to force the generation
943
-
# of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones).
944
-
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
945
-
# EW: Note that Android's normal build process uses
946
-
# -mthumb -Os -g -DNDEBUG -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
947
-
# and for debug, appends: -O0 -UNDEBUG -marm -fno-omit-frame-pointer
948
-
set( _CMAKE_CXX_FLAGS_RELEASE "-mthumb -O3 -finline-limit=64" )
949
-
set( _CMAKE_C_FLAGS_RELEASE "-mthumb -O3 -finline-limit=64" )
950
-
set( _CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -g -finline-limit=64" )
951
-
set( _CMAKE_C_FLAGS_DEBUG "-marm -O0 -g -finline-limit=64" )
952
-
else()
953
-
# always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI
954
-
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
955
-
set( _CMAKE_CXX_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
956
-
set( _CMAKE_C_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
957
-
set( _CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
958
-
set( _CMAKE_C_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
959
-
endif()
960
-
elseif( X86 )
961
-
set( _CMAKE_CXX_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
962
-
set( _CMAKE_C_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
963
-
set( _CMAKE_CXX_FLAGS_DEBUG "-O0 -g -funswitch-loops -finline-limit=300" )
964
-
set( _CMAKE_C_FLAGS_DEBUG "-O0 -g -funswitch-loops -finline-limit=300" )
965
-
elseif( MIPS )
966
-
set( _CMAKE_CXX_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
967
-
set( _CMAKE_C_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
968
-
set( _CMAKE_CXX_FLAGS_DEBUG "-O0 -g" )
969
-
set( _CMAKE_C_FLAGS_DEBUG "-O0 -g" )
970
-
endif()
971
-
set( _CMAKE_CXX_FLAGS_RELEASE "${_CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
972
-
set( _CMAKE_C_FLAGS_RELEASE "${_CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
973
-
set( _CMAKE_CXX_FLAGS_DEBUG "${_CMAKE_CXX_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
974
-
set( _CMAKE_C_FLAGS_DEBUG "${_CMAKE_C_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
975
-
976
-
# ABI-specific flags
977
-
if( ARMEABI_V7A )
978
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
979
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
980
-
if( NEON )
981
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=neon" )
982
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" )
983
-
elseif( VFPV3 )
984
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=vfpv3-d32" )
985
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d32" )
986
-
else()
987
-
# Default Android armv7 builds with -mfpu=vfpv3-d16.
988
-
# According to this:
989
-
# http://stackoverflow.com/questions/11831648/android-ndk-arm-build-settings-to-run-on-most-devices
990
-
# there was a bug in r7b which caused crashes.
991
-
# But r9 is the current as of this writing so developers really need to upgrade their ndk.
992
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=vfpv3-d16" )
993
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" )
994
-
endif()
995
-
elseif( ARMEABI_V6 )
996
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" )
997
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" )
998
-
elseif( ARMEABI )
999
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
1000
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
1001
-
elseif( X86 )
1002
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS}" )#sse?
1003
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" )#sse?
1004
-
endif()
1005
-
1006
-
# linker flags
1007
-
if( NOT DEFINED __ndklibspath )
1008
-
set( __ndklibspath "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/ndklibs/${ANDROID_NDK_ABI_NAME}" )
1009
-
endif()
1010
-
list( APPEND ANDROID_SYSTEM_LIB_DIRS "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" )
1011
-
set( ANDROID_LINKER_FLAGS "" )
1012
-
1013
-
# STL
1014
-
if( ANDROID_USE_STLPORT )
1015
-
if( EXISTS "${__stlLibPath}/libstlport_static.a" )
1016
-
set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES> \"${__stlLibPath}/libstlport_static.a\"")
1017
-
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> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES> \"${__stlLibPath}/libstlport_static.a\"")
1018
-
endif()
1019
-
else( ANDROID_USE_STLPORT )
1020
-
if( EXISTS "${__stlLibPath}/libgnustl_static.a" )
1021
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/libgnustl_static.a" "${__ndklibspath}/libstdc++.a" )
1022
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" )
1023
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1024
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" )
1025
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1026
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/thumb/libstdc++.a" )
1027
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/thumb/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1028
-
elseif( EXISTS "${__stlLibPath}/libstdc++.a" )
1029
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1030
-
endif()
1031
-
if( EXISTS "${__stlLibPath}/libsupc++.a" )
1032
-
__COPY_IF_DIFFERENT( "${__stlLibPath}/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1033
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" )
1034
-
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1035
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" )
1036
-
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1037
-
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" )
1038
-
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1039
-
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" )
1040
-
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1041
-
endif()
1042
-
list( APPEND ANDROID_SYSTEM_LIB_DIRS "${__ndklibspath}" )
1043
-
endif( ANDROID_USE_STLPORT )
1044
-
1045
-
# cleanup for STL search
1046
-
unset( __stlIncludePath )
1047
-
unset( __stlLibPath )
1048
-
1049
-
# other linker flags
1050
-
__INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON )
1051
-
set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" FORCE )
1052
-
mark_as_advanced( ANDROID_NO_UNDEFINED )
1053
-
if( ANDROID_NO_UNDEFINED )
1054
-
set( ANDROID_LINKER_FLAGS "-Wl,--no-undefined ${ANDROID_LINKER_FLAGS}" )
1055
-
endif()
1056
-
1057
-
if (ANDROID_NDK MATCHES "-r[56].?$")
1058
-
# 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.
1059
-
__INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON )
1060
-
else()
1061
-
__INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF )
1062
-
endif()
1063
-
1064
-
set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE )
1065
-
mark_as_advanced( ANDROID_SO_UNDEFINED )
1066
-
if( ANDROID_SO_UNDEFINED )
1067
-
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" )
1068
-
endif()
1069
-
1070
-
# Android by default passes --function-sections for C and C++ but does not pass -fdata-sections.
1071
-
# Android also does not pass -Wl,--gc-sections
1072
-
__INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON )
1073
-
set( ANDROID_FUNCTION_LEVEL_LINKING ON CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE )
1074
-
mark_as_advanced( ANDROID_FUNCTION_LEVEL_LINKING )
1075
-
if( ANDROID_FUNCTION_LEVEL_LINKING )
1076
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fdata-sections -ffunction-sections" )
1077
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" )
1078
-
set( ANDROID_LINKER_FLAGS "-Wl,--gc-sections ${ANDROID_LINKER_FLAGS}" )
1079
-
endif()
1080
-
1081
-
if( ARMEABI_V7A )
1082
-
# this is *required* to use the following linker flags that routes around
1083
-
# a CPU bug in some Cortex-A8 implementations:
1084
-
# set( ANDROID_LINKER_FLAGS "-Wl,--fix-cortex-a8 ${ANDROID_LINKER_FLAGS}" )
1085
-
# Android passes all this stuff by default.
1086
-
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1087
-
elseif( ARMEABI )
1088
-
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1089
-
elseif ( X86 )
1090
-
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1091
-
endif()
1092
-
1093
-
# cache flags
1094
-
set( CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" )
1095
-
set( CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" CACHE STRING "c flags" )
1096
-
set( CMAKE_CXX_FLAGS_RELEASE "${_CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c++ Release flags" )
1097
-
set( CMAKE_C_FLAGS_RELEASE "${_CMAKE_C_FLAGS_RELEASE}" CACHE STRING "c Release flags" )
1098
-
set( CMAKE_CXX_FLAGS_DEBUG "${_CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c++ Debug flags" )
1099
-
set( CMAKE_C_FLAGS_DEBUG "${_CMAKE_C_FLAGS_DEBUG}" CACHE STRING "c Debug flags" )
1100
-
set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "linker flags" )
1101
-
set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "linker flags" )
1102
-
set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "linker flags" )
1103
-
1104
-
include_directories( SYSTEM ${ANDROID_SYSTEM_INCLUDE_DIRS} )
1105
-
link_directories( ${ANDROID_SYSTEM_LIB_DIRS} )
1106
-
1107
-
# finish flags
1108
-
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS}" CACHE INTERNAL "Extra Android C compiler flags")
1109
-
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Extra Android C++ compiler flags")
1110
-
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Extra Android linker flags")
1111
-
set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" )
1112
-
set( CMAKE_C_FLAGS "${ANDROID_C_FLAGS} ${CMAKE_C_FLAGS}" )
1113
-
if( MIPS AND BUILD_WITH_ANDROID_NDK )
1114
-
set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.xsc ${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" )
1115
-
set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.xsc ${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" )
1116
-
set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.x ${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" )
1117
-
else()
1118
-
set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" )
1119
-
set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" )
1120
-
set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" )
1121
-
endif()
1122
-
1123
-
# set these global flags for cmake client scripts to change behavior
1124
-
set( ANDROID True )
1125
-
set( BUILD_ANDROID True )
1126
-
1127
-
# where is the target environment
1128
-
set( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" "${CMAKE_FIND_ROOT_PATH}" )
1129
-
1130
-
# only search for libraries and includes in the ndk toolchain
1131
-
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1132
-
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1133
-
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1134
-
1135
-
1136
-
# macro to find packages on the host OS
1137
-
macro( find_host_package )
1138
-
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1139
-
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1140
-
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1141
-
if( CMAKE_HOST_WIN32 )
1142
-
SET( WIN32 1 )
1143
-
SET( UNIX )
1144
-
elseif( CMAKE_HOST_APPLE )
1145
-
SET( APPLE 1 )
1146
-
SET( UNIX )
1147
-
endif()
1148
-
find_package( ${ARGN} )
1149
-
SET( WIN32 )
1150
-
SET( APPLE )
1151
-
SET( UNIX 1 )
1152
-
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1153
-
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1154
-
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1155
-
endmacro()
1156
-
1157
-
1158
-
# macro to find programs on the host OS
1159
-
macro( find_host_program )
1160
-
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1161
-
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1162
-
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1163
-
if( CMAKE_HOST_WIN32 )
1164
-
SET( WIN32 1 )
1165
-
SET( UNIX )
1166
-
elseif( CMAKE_HOST_APPLE )
1167
-
SET( APPLE 1 )
1168
-
SET( UNIX )
1169
-
endif()
1170
-
find_program( ${ARGN} )
1171
-
SET( WIN32 )
1172
-
SET( APPLE )
1173
-
SET( UNIX 1 )
1174
-
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1175
-
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1176
-
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1177
-
endmacro()
1178
-
1179
-
1180
-
macro( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR )
1181
-
if( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" )
1182
-
set( ${VAR} "armeabi" )
1183
-
elseif( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" )
1184
-
set( ${VAR} "armeabi-v7a" )
1185
-
elseif( "${TOOLCHAIN_FLAG}" STREQUAL "X86" )
1186
-
set( ${VAR} "x86" )
1187
-
else()
1188
-
set( ${VAR} "unknown" )
1189
-
endif()
1190
-
endmacro()
1191
-
1192
-
1193
-
# export toolchain settings for the try_compile() command
1194
-
if( NOT PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" )
1195
-
set( __toolchain_config "")
1196
-
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 __ndklibspath )
1197
-
if( DEFINED ${__var} )
1198
-
if( "${__var}" MATCHES " ")
1199
-
set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" )
1200
-
else()
1201
-
set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" )
1202
-
endif()
1203
-
endif()
1204
-
endforeach()
1205
-
file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" )
1206
-
unset( __toolchain_config )
1207
-
unset( __ndklibspath )
1208
-
endif()
1209
-
1210
-
1211
-
# set some obsolete variables for backward compatibility
1212
-
set( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" )
1213
-
mark_as_advanced( ANDROID_SET_OBSOLETE_VARIABLES )
1214
-
if( ANDROID_SET_OBSOLETE_VARIABLES )
1215
-
set( ANDROID_API_LEVEL ${ANDROID_NATIVE_API_LEVEL} )
1216
-
set( ARM_TARGET "${ANDROID_ABI}" )
1217
-
set( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" )
1218
-
endif()
1219
-
1220
-
1221
-
# Variables controlling behavior or set by cmake toolchain:
1222
-
# ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86", "mips"
1223
-
# ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version)
1224
-
# ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF
1225
-
# ANDROID_USE_STLPORT : OFF/ON - EXPERIMENTAL!!!
1226
-
# ANDROID_FORBID_SYGWIN : ON/OFF
1227
-
# ANDROID_NO_UNDEFINED : ON/OFF
1228
-
# ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version)
1229
-
# ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF
1230
-
# Variables that takes effect only at first run:
1231
-
# ANDROID_FORCE_ARM_BUILD : ON/OFF
1232
-
# LIBRARY_OUTPUT_PATH_ROOT : <any valid path>
1233
-
# Can be set only at the first run:
1234
-
# ANDROID_NDK
1235
-
# ANDROID_STANDALONE_TOOLCHAIN
1236
-
# ANDROID_TOOLCHAIN_NAME : "arm-linux-androideabi-4.4.3" or "arm-linux-androideabi-4.6" or "mipsel-linux-android-4.4.3" or "mipsel-linux-android-4.6" or "x86-4.4.3" or "x86-4.6"
1237
-
# Obsolete:
1238
-
# ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL
1239
-
# ARM_TARGET : superseded by ANDROID_ABI
1240
-
# ARM_TARGETS : superseded by ANDROID_ABI (can be set only)
1241
-
# ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only)
1242
-
# ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed)
1243
-
#
1244
-
# Primary read-only variables:
1245
-
# ANDROID : always TRUE
1246
-
# ARMEABI : TRUE for arm v6 and older devices
1247
-
# ARMEABI_V6 : TRUE for arm v6
1248
-
# ARMEABI_V7A : TRUE for arm v7a
1249
-
# NEON : TRUE if NEON unit is enabled
1250
-
# VFPV3 : TRUE if VFP version 3 is enabled
1251
-
# X86 : TRUE if configured for x86
1252
-
# BUILD_ANDROID : always TRUE
1253
-
# BUILD_WITH_ANDROID_NDK : TRUE if NDK is used
1254
-
# BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used
1255
-
# ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform
1256
-
# ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a" or "x86" depending on ANDROID_ABI
1257
-
# ANDROID_ARCH_NAME : "arm" or "x86" or "mips" depending on ANDROID_ABI
1258
-
# TOOL_OS_SUFFIX : "" or ".exe" depending on host platform
1259
-
# ANDROID_SYSROOT : path to the compiler sysroot
1260
-
# ANDROID_SYSTEM_INCLUDE_DIRS
1261
-
# ANDROID_SYSTEM_LIB_DIRS
1262
-
# Obsolete:
1263
-
# ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME
1264
-
#
1265
-
# Secondary (less stable) read-only variables:
1266
-
# ANDROID_COMPILER_VERSION : GCC version used
1267
-
# ANDROID_C_FLAGS : C compiler flags required by Android platform
1268
-
# ANDROID_CXX_FLAGS : C++ compiler flags required by Android platform
1269
-
# ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI
1270
-
# ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux"
1271
-
# ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK)
1272
-
# ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK
1273
-
#
1274
-
# Defaults:
1275
-
# ANDROID_DEFAULT_NDK_API_LEVEL
1276
-
# ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH}
1277
-
# ANDROID_NDK_SEARCH_PATHS
1278
-
# ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH
1279
-
# ANDROID_SUPPORTED_ABIS_${ARCH}
1280
-
# ANDROID_SUPPORTED_NDK_VERSIONS
1
+
# ------------------------------------------------------------------------------
2
+
# Android CMake toolchain file, for use with the Android NDK r5-r8
3
+
# Requires cmake 2.6.3 or newer (2.8.5 or newer is recommended).
4
+
# See home page: http://code.google.com/p/android-cmake/
5
+
#
6
+
# The file is mantained by the OpenCV project. And also can be found at
7
+
# http://code.opencv.org/projects/opencv/repository/revisions/master/changes/android/android.toolchain.cmake
8
+
#
9
+
# Note: There are now two flavors of this toolchain file: 32-bit toolchain and 64-bit toolchain.
10
+
#
11
+
# Usage Linux:
12
+
# $ export ANDROID_NDK_ROOT=/absolute/path/to/the/android-ndk
13
+
# $ mkdir build && cd build
14
+
# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
15
+
# $ make -j8
16
+
#
17
+
# Usage Linux (using standalone toolchain):
18
+
# $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain
19
+
# $ mkdir build && cd build
20
+
# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
21
+
# $ make -j8
22
+
#
23
+
# Usage Windows:
24
+
# You need native port of make to build your project.
25
+
# Android NDK r7 (or newer) already has make.exe on board.
26
+
# For older NDK you have to install it separately.
27
+
# For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm
28
+
#
29
+
# $ SET ANDROID_NDK_ROOT=C:\absolute\path\to\the\android-ndk
30
+
# $ mkdir build && cd build
31
+
# $ cmake.exe -G"MinGW Makefiles"
32
+
# -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake
33
+
# -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK_ROOT%\prebuilt\windows\bin\make.exe" ..
34
+
# $ "%ANDROID_NDK_ROOT%\prebuilt\windows\bin\make.exe"
35
+
#
36
+
#
37
+
# Options (can be set as cmake parameters: -D<option_name>=<value>):
38
+
# ANDROID_NDK=/opt/android-ndk - path to the NDK root.
39
+
# Can be set as environment variable ANDROID_NDK_ROOT. Can be set only at first cmake run.
40
+
#
41
+
# ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the
42
+
# standalone toolchain. This option overrides ANDROID_NDK
43
+
# (and subsequentally the enviroment variable ANDROID_NDK_ROOT).
44
+
# Can be set as environment variable. Can be set only at first cmake run.
45
+
#
46
+
# ANDROID_ABI=armeabi-v7a - specifies the target Application Binary
47
+
# Interface (ABI). This option nearly matches to the APP_ABI variable
48
+
# used by ndk-build tool from Android NDK.
49
+
#
50
+
# Possible targets are:
51
+
# "armeabi" - matches to the NDK ABI with the same name.
52
+
# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
53
+
# "armeabi-v7a" - matches to the NDK ABI with the same name.
54
+
# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
55
+
# "armeabi-v7a with NEON" - same as armeabi-v7a, but
56
+
# sets NEON as floating-point unit
57
+
# "armeabi-v7a with VFPV3" - same as armeabi-v7a, but
58
+
# sets VFPV3 as floating-point unit (has 32 registers instead of 16).
59
+
# "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP.
60
+
# "x86" - matches to the NDK ABI with the same name.
61
+
# See ${ANDROID_NDK_ROOT}/docs/CPU-ARCH-ABIS.html for the documentation.
62
+
# "mips" - matches to the NDK ABI with the same name
63
+
# (not testes on real devices)
64
+
#
65
+
# ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for.
66
+
# Option is read-only when standalone toolchain used.
67
+
#
68
+
# ANDROID_FORCE_ARM_BUILD=OFF - set true to generate 32-bit ARM instructions
69
+
# instead of Thumb-1. Is not available for "x86" (inapplicable) and
70
+
# "armeabi-v6 with VFP" (forced) ABIs.
71
+
#
72
+
# ANDROID_NO_UNDEFINED=ON - set true to show all undefined symbols as linker
73
+
# errors even if they are not used.
74
+
#
75
+
# ANDROID_SO_UNDEFINED=OFF - set true to allow undefined symbols in shared
76
+
# libraries. Automatically turned on for NDK r5x and r6x due to GLESv2
77
+
# problems.
78
+
#
79
+
# LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary
80
+
# files. See additional details below.
81
+
#
82
+
# ANDROID_SET_OBSOLETE_VARIABLES=ON - it set, then toolchain defines some
83
+
# obsolete variables which were set by previous versions of this file for
84
+
# backward compatibility.
85
+
#
86
+
#
87
+
# What?:
88
+
# android-cmake toolchain searches for NDK/toolchain in the following order:
89
+
# ANDROID_NDK - cmake parameter
90
+
# ANDROID_NDK_ROOT - environment variable
91
+
# (ANDROID_NDK - environment variable as legacy fallback)
92
+
# ANDROID_STANDALONE_TOOLCHAIN - cmake parameter
93
+
# ANDROID_STANDALONE_TOOLCHAIN - environment variable
94
+
# ANDROID_NDK - default locations
95
+
# ANDROID_STANDALONE_TOOLCHAIN - default locations
96
+
#
97
+
# Make sure to do the following in your scripts:
98
+
# SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" )
99
+
# SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" )
100
+
# The flags will be prepopulated with critical flags, so don't loose them.
101
+
# Also be aware that toolchain also sets configuration-specific compiler
102
+
# flags and linker flags.
103
+
#
104
+
# ANDROID and BUILD_ANDROID will be set to true, you may test any of these
105
+
# variables to make necessary Android-specific configuration changes.
106
+
#
107
+
# Also ARMEABI or ARMEABI_V7A or X86 will be set true, mutually exclusive.
108
+
# NEON option will be set true if VFP is set to NEON.
109
+
#
110
+
# LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android
111
+
# libraries will be installed.
112
+
# Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be
113
+
# under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}
114
+
# (depending on the target ABI). This is convenient for Android packaging.
115
+
#
116
+
# Authors:
117
+
# Ethan Rublee ethan.ruble@gmail.com
118
+
# Andrey Kamaev andrey.kamaev@itseez.com
119
+
# Eric Wing <ewing . public |-at-| gmail . com>
120
+
#
121
+
# Change Log:
122
+
# - initial version December 2010
123
+
# - modified April 2011
124
+
# [+] added possibility to build with NDK (without standalone toolchain)
125
+
# [+] support cross-compilation on Windows (native, no cygwin support)
126
+
# [+] added compiler option to force "char" type to be signed
127
+
# [+] added toolchain option to compile to 32-bit ARM instructions
128
+
# [+] added toolchain option to disable SWIG search
129
+
# [+] added platform "armeabi-v7a with VFPV3"
130
+
# [~] ARM_TARGETS renamed to ARM_TARGET
131
+
# [+] EXECUTABLE_OUTPUT_PATH is set by toolchain (required on Windows)
132
+
# [~] Fixed bug with ANDROID_API_LEVEL variable
133
+
# [~] turn off SWIG search if it is not found first time
134
+
# - modified May 2011
135
+
# [~] ANDROID_LEVEL is renamed to ANDROID_API_LEVEL
136
+
# [+] ANDROID_API_LEVEL is detected by toolchain if not specified
137
+
# [~] added guard to prevent changing of output directories on the first
138
+
# cmake pass
139
+
# [~] toolchain exits with error if ARM_TARGET is not recognized
140
+
# - modified June 2011
141
+
# [~] default NDK path is updated for version r5c
142
+
# [+] variable CMAKE_SYSTEM_PROCESSOR is set based on ARM_TARGET
143
+
# [~] toolchain install directory is added to linker paths
144
+
# [-] removed SWIG-related stuff from toolchain
145
+
# [+] added macro find_host_package, find_host_program to search
146
+
# packages/programs on the host system
147
+
# [~] fixed path to STL library
148
+
# - modified July 2011
149
+
# [~] fixed options caching
150
+
# [~] search for all supported NDK versions
151
+
# [~] allowed spaces in NDK path
152
+
# - modified September 2011
153
+
# [~] updated for NDK r6b
154
+
# - modified November 2011
155
+
# [*] rewritten for NDK r7
156
+
# [+] x86 toolchain support (experimental)
157
+
# [+] added "armeabi-v6 with VFP" ABI for ARMv6 processors.
158
+
# [~] improved compiler and linker flags management
159
+
# [+] support different build flags for Release and Debug configurations
160
+
# [~] by default compiler flags the same as used by ndk-build (but only
161
+
# where reasonable)
162
+
# [~] ANDROID_NDK_TOOLCHAIN_ROOT is splitted to ANDROID_STANDALONE_TOOLCHAIN
163
+
# and ANDROID_TOOLCHAIN_ROOT
164
+
# [~] ARM_TARGET is renamed to ANDROID_ABI
165
+
# [~] ARMEABI_NDK_NAME is renamed to ANDROID_NDK_ABI_NAME
166
+
# [~] ANDROID_API_LEVEL is renamed to ANDROID_NATIVE_API_LEVEL
167
+
# - modified January 2012
168
+
# [+] added stlport_static support (experimental)
169
+
# [+] added special check for cygwin
170
+
# [+] filtered out hidden files (starting with .) while globbing inside NDK
171
+
# [+] automatically applied GLESv2 linkage fix for NDK revisions 5-6
172
+
# [+] added ANDROID_GET_ABI_RAWNAME to get NDK ABI names by CMake flags
173
+
# - modified February 2012
174
+
# [+] updated for NDK r7b
175
+
# [~] fixed cmake try_compile() command
176
+
# [~] Fix for missing install_name_tool on OS X
177
+
# - modified March 2012
178
+
# [~] fixed incorrect C compiler flags
179
+
# [~] fixed CMAKE_SYSTEM_PROCESSOR change on ANDROID_ABI change
180
+
# [+] improved toolchain loading speed
181
+
# [+] added assembler language support (.S)
182
+
# [+] allowed preset search paths and extra search suffixes
183
+
# - modified April 2012
184
+
# [+] updated for NDK r7c
185
+
# [~] fixed most of problems with compiler/linker flags and caching
186
+
# [+] added option ANDROID_FUNCTION_LEVEL_LINKING
187
+
# - modified May 2012
188
+
# [+] updated for NDK r8
189
+
# [+] added mips architecture support
190
+
# - modified August 2012
191
+
# [+] updated for NDK r8b
192
+
# [~] all intermediate files generated by toolchain are moved into CMakeFiles
193
+
# [~] libstdc++ and libsupc are removed from explicit link libraries
194
+
# - modified August 2013 (EW)
195
+
# [+] updated for NDK r9 (standalone)
196
+
# [+] Addded Perl helper scripts to make it easier to build multiple architectures in one shot.
197
+
# [~] Breaking change of behavior to so that ANDROID_STANDALONE_TOOLCHAIN overrides ANDROID_NDK because the latter uses semi-standard environmental variables that people may already have defined for other conflicting purposes.
198
+
# [~] Changed environmental variable to look for ANDROID_NDK_ROOT because this is the semi-official/blessed one according to Google via the NDK mailing list. ANDROID_NDK is still checked for backwards compatibility.
199
+
# [~] Changed a lot of flags to try to match stock Android more closely due build problems I was trying to track down. In the end, I lost track of which specific flags were the problem. See Additional Notes for flag differences between this and stock.
200
+
# [~] Changed armeabi-v7a to use -mfpu=vfpv3-d16 instead of -mfpu=vfp to conform with stock Android.
201
+
# [~] Changed VFPV3 mode to use -mfpu=vfpv3-d32
202
+
# [~] Use --sysroot=${ANDROID_SYSROOT} to match stock Android
203
+
# [~] Use -fstack-protector -no-canonical-prefixes -Wa,--noexecstack to match stock Android
204
+
# [~] Use -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now to match stock Android
205
+
# [~] Use -lc -lm to match stock Android
206
+
# [~] Removed -fsigned-char and -Wno-psabi because these don't appear in stock Android
207
+
# [~] Removed -f[no]exceptions flags from C flags because those are C++ options
208
+
# [~] Changed arm debug optimization level to O0 from Os
209
+
# [~] Added -funswitch-loops -finline-limit=300 to match stock Android
210
+
# [~] Changed arm debug optimization level to O0 from Os
211
+
# [~] Separated ANDROID_CXX_FLAGS into ANDROID_CXX_FLAGS and ANDROID_C_FLAGS
212
+
# [*] Note: MIPs settings were not changed/tested.
213
+
#
214
+
#
215
+
# (EW) Additional Notes:
216
+
# Looking at the switches used by compiling the hello-jni example from ndk-build V=1 in r8d, I see the following compiler flags:
217
+
# armeabi
218
+
# -MMD -MP -MF /foo/hello-jni.o.d
219
+
# -fpic -ffunction-sections -funwind-tables -fstack-protector
220
+
# -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -no-canonical-prefixes
221
+
# -march=armv5te -mtune=xscale -msoft-float
222
+
# -mthumb
223
+
# -Os -g -DNDEBUG
224
+
# -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
225
+
#
226
+
# -O0 -UNDEBUG (debug only, not in release)
227
+
# -marm -fno-omit-frame-pointer (debug only, not in release)
228
+
#
229
+
# -DANDROID -Wa,--noexecstack
230
+
231
+
232
+
# armeabi-v7a
233
+
# -MMD -MP -MF /foo/hello-jni.o.d
234
+
# -fpic -ffunction-sections -funwind-tables -fstack-protector
235
+
# -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -no-canonical-prefixes
236
+
# -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16
237
+
# -mthumb
238
+
# -Os -g -DNDEBUG
239
+
# -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
240
+
#
241
+
# -O0 -UNDEBUG (debug only, not in release)
242
+
# -marm -fno-omit-frame-pointer (debug only, not in release)
243
+
#
244
+
# -DANDROID -Wa,--noexecstack
245
+
246
+
# x86
247
+
# -MMD -MP -MF /foo/hello-jni.o.d
248
+
# -ffunction-sections -funwind-tables -no-canonical-prefixes -fstack-protector
249
+
# -O2 -g -DNDEBUG
250
+
# -fomit-frame-pointer -fstrict-aliasing -funswitch-loops -finline-limit=300
251
+
#
252
+
# -O0 -UNDEBUG (debug only, not in release)
253
+
# -fno-omit-frame-pointer -fno-strict-aliasing (debug only, not in release)
254
+
#
255
+
# -DANDROID -Wa,--noexecstack
256
+
257
+
# The link flags are:
258
+
259
+
260
+
# armeabi
261
+
# -Wl,-soname,libhello-jni.so -shared
262
+
# --sysroot=/fee/android-ndk/platforms/android-14/arch-arm
263
+
# /foo/hello-jni.o
264
+
# -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
265
+
266
+
# armeabi-v7a
267
+
# -Wl,-soname,libhello-jni.so -shared
268
+
# --sysroot=/fee/android-ndk/platforms/android-14/arch-arm
269
+
# /foo/hello-jni.o
270
+
# -no-canonical-prefixes -march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
271
+
272
+
# x86
273
+
# -Wl,-soname,libhello-jni.so -shared
274
+
# --sysroot=/fee/android-ndk/platforms/android-14/arch-x86
275
+
# /foo/hello-jni.o
276
+
# -no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -lc -lm
277
+
278
+
279
+
# Some interesting observations are that debug doesn't have different flags, but overrides set flags with additional switches.
280
+
281
+
# Differences from Stock Android:
282
+
# This toolchain has deviated from the stock flags.
283
+
#
284
+
# I don't do the override technique as described directly above.
285
+
#
286
+
# -ffunction-sections has been separated into the option ANDROID_FUNCTION_LEVEL_LINKING.
287
+
# But this also brings in -fdata-sections and the linker flags -Wl,--gc-sections which are not in the Android defaults
288
+
#
289
+
# -funwind-tables has been completely removed for arm by this file. It looks like the author intentionally did this for performance.
290
+
#
291
+
# Optimization flags are using O3 in this file as opposed to stock 02 for Release. It looks like the original authors have done some benchmarking so I am deferring to them.
292
+
# I am however changing the Os to O0 for debug.
293
+
#
294
+
# ------------------------------------------------------------------------------
295
+
296
+
cmake_minimum_required( VERSION 2.6.3 )
297
+
298
+
if( DEFINED CMAKE_CROSSCOMPILING )
299
+
# subsequent toolchain loading is not really needed
300
+
return()
301
+
endif()
302
+
303
+
get_property(_CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE)
304
+
if( _CMAKE_IN_TRY_COMPILE )
305
+
include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL )
306
+
endif()
307
+
308
+
# this one is important
309
+
set( CMAKE_SYSTEM_NAME Linux )
310
+
# this one not so much
311
+
set( CMAKE_SYSTEM_VERSION 1 )
312
+
313
+
# There was an Android NDK bug with armv7 and vfpv3 in r7b which caused crashes according to
314
+
# http://stackoverflow.com/questions/11831648/android-ndk-arm-build-settings-to-run-on-most-devices
315
+
# Not supporting r7b or below seems wiser. Supporting ancient Android NDKs is rather pointless since part of the reason for the updates is to fix bugs.
316
+
#set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r8d -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" )
317
+
set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r9 -r8d -r8b -r8 -r7c "" )
318
+
if(NOT DEFINED ANDROID_NDK_SEARCH_PATHS)
319
+
if( CMAKE_HOST_WIN32 )
320
+
file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS )
321
+
set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" )
322
+
else()
323
+
file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS )
324
+
set( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "${ANDROID_NDK_SEARCH_PATHS}/NVPACK/android-ndk" )
325
+
endif()
326
+
endif()
327
+
if(NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH)
328
+
set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain )
329
+
endif()
330
+
331
+
set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" )
332
+
set( ANDROID_SUPPORTED_ABIS_x86 "x86" )
333
+
set( ANDROID_SUPPORTED_ABIS_mipsel "mips" )
334
+
335
+
set( ANDROID_DEFAULT_NDK_API_LEVEL 8 )
336
+
set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 )
337
+
set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 )
338
+
339
+
340
+
macro( __LIST_FILTER listvar regex )
341
+
if( ${listvar} )
342
+
foreach( __val ${${listvar}} )
343
+
if( __val MATCHES "${regex}" )
344
+
list( REMOVE_ITEM ${listvar} "${__val}" )
345
+
endif()
346
+
endforeach()
347
+
endif()
348
+
endmacro()
349
+
350
+
macro( __INIT_VARIABLE var_name )
351
+
set( __test_path 0 )
352
+
foreach( __var ${ARGN} )
353
+
if( __var STREQUAL "PATH" )
354
+
set( __test_path 1 )
355
+
break()
356
+
endif()
357
+
endforeach()
358
+
if( __test_path AND NOT EXISTS "${${var_name}}" )
359
+
unset( ${var_name} CACHE )
360
+
endif()
361
+
if( "${${var_name}}" STREQUAL "" )
362
+
set( __values 0 )
363
+
foreach( __var ${ARGN} )
364
+
if( __var STREQUAL "VALUES" )
365
+
set( __values 1 )
366
+
elseif( NOT __var STREQUAL "PATH" )
367
+
set( __obsolete 0 )
368
+
if( __var MATCHES "^OBSOLETE_.*$" )
369
+
string( REPLACE "OBSOLETE_" "" __var "${__var}" )
370
+
set( __obsolete 1 )
371
+
endif()
372
+
if( __var MATCHES "^ENV_.*$" )
373
+
string( REPLACE "ENV_" "" __var "${__var}" )
374
+
set( __value "$ENV{${__var}}" )
375
+
elseif( DEFINED ${__var} )
376
+
set( __value "${${__var}}" )
377
+
else()
378
+
if( __values )
379
+
set( __value "${__var}" )
380
+
else()
381
+
set( __value "" )
382
+
endif()
383
+
endif()
384
+
if( NOT "${__value}" STREQUAL "" )
385
+
if( __test_path )
386
+
if( EXISTS "${__value}" )
387
+
set( ${var_name} "${__value}" )
388
+
if( __obsolete )
389
+
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." )
390
+
endif()
391
+
break()
392
+
endif()
393
+
else()
394
+
set( ${var_name} "${__value}" )
395
+
if( __obsolete )
396
+
message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." )
397
+
endif()
398
+
break()
399
+
endif()
400
+
endif()
401
+
endif()
402
+
endforeach()
403
+
unset( __value )
404
+
unset( __values )
405
+
unset( __obsolete )
406
+
endif()
407
+
unset( __test_path )
408
+
endmacro()
409
+
410
+
macro( __DETECT_NATIVE_API_LEVEL _var _path )
411
+
SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" )
412
+
FILE( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" )
413
+
if( NOT __apiFileContent )
414
+
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." )
415
+
endif()
416
+
string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" )
417
+
unset( __apiFileContent )
418
+
unset( __ndkApiLevelRegex )
419
+
endmacro()
420
+
421
+
macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root )
422
+
file( GLOB __gccExePath "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" )
423
+
__LIST_FILTER( __gccExePath "bin/[.].*-gcc${TOOL_OS_SUFFIX}$" )
424
+
list( LENGTH __gccExePath __gccExePathsCount )
425
+
if( NOT __gccExePathsCount EQUAL 1 )
426
+
message( WARNING "Could not uniquely determine machine name for compiler from ${_root}." )
427
+
set( ${_var} "" )
428
+
else()
429
+
get_filename_component( __gccExeName "${__gccExePath}" NAME_WE )
430
+
string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" )
431
+
endif()
432
+
unset( __gccExePath )
433
+
unset( __gccExePathsCount )
434
+
unset( __gccExeName )
435
+
endmacro()
436
+
437
+
macro( __COPY_IF_DIFFERENT _source _destination )
438
+
execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${_source}" "${_destination}" RESULT_VARIABLE __fileCopyProcess )
439
+
if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${_destination}")
440
+
message( SEND_ERROR "Failed copying of ${_source} to the ${_destination}" )
441
+
endif()
442
+
unset( __fileCopyProcess )
443
+
endmacro()
444
+
445
+
446
+
# stl version: by default gnustl_static will be used
447
+
set( ANDROID_USE_STLPORT FALSE CACHE BOOL "Experimental: use stlport_static instead of gnustl_static")
448
+
mark_as_advanced( ANDROID_USE_STLPORT )
449
+
450
+
# fight against cygwin
451
+
set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools")
452
+
mark_as_advanced( ANDROID_FORBID_SYGWIN )
453
+
if( ANDROID_FORBID_SYGWIN )
454
+
if( CYGWIN )
455
+
message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." )
456
+
endif()
457
+
458
+
if( CMAKE_HOST_WIN32 )
459
+
# remove cygwin from PATH
460
+
set( __new_path "$ENV{PATH}")
461
+
__LIST_FILTER( __new_path "cygwin" )
462
+
set(ENV{PATH} "${__new_path}")
463
+
unset(__new_path)
464
+
endif()
465
+
endif()
466
+
467
+
# detect current host platform
468
+
set( TOOL_OS_SUFFIX "" )
469
+
if( CMAKE_HOST_APPLE )
470
+
set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86" )
471
+
elseif( CMAKE_HOST_WIN32 )
472
+
set( ANDROID_NDK_HOST_SYSTEM_NAME "windows" )
473
+
set( TOOL_OS_SUFFIX ".exe" )
474
+
elseif( CMAKE_HOST_UNIX )
475
+
set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86" )
476
+
else()
477
+
message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" )
478
+
endif()
479
+
480
+
# see if we have path to Android NDK
481
+
# but only if the user hasn't tried to provide a standalone toolchain as an override.
482
+
if( NOT ANDROID_STANDALONE_TOOLCHAIN )
483
+
__INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK )
484
+
# According to a Google engineer on the Android NDK mailing list, the semi-official/blessed environmental variable is ANDROID_NDK_ROOT, not ANDROID_NDK.
485
+
if ( NOT ANDROID_NDK )
486
+
__INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK_ROOT )
487
+
endif( NOT ANDROID_NDK )
488
+
endif( NOT ANDROID_STANDALONE_TOOLCHAIN )
489
+
490
+
if( NOT ANDROID_NDK )
491
+
# see if we have path to Android standalone toolchain
492
+
__INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT )
493
+
494
+
if( NOT ANDROID_STANDALONE_TOOLCHAIN )
495
+
#try to find Android NDK in one of the the default locations
496
+
set( __ndkSearchPaths )
497
+
foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} )
498
+
foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} )
499
+
list( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" )
500
+
endforeach()
501
+
endforeach()
502
+
__INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} )
503
+
unset( __ndkSearchPaths )
504
+
505
+
if( ANDROID_NDK )
506
+
message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" )
507
+
message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" )
508
+
else()
509
+
#try to find Android standalone toolchain in one of the the default locations
510
+
__INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH )
511
+
512
+
if( ANDROID_STANDALONE_TOOLCHAIN )
513
+
message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" )
514
+
message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" )
515
+
endif( ANDROID_STANDALONE_TOOLCHAIN )
516
+
endif( ANDROID_NDK )
517
+
endif( NOT ANDROID_STANDALONE_TOOLCHAIN )
518
+
endif( NOT ANDROID_NDK )
519
+
520
+
# remember found paths
521
+
if( ANDROID_NDK )
522
+
get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE )
523
+
# try to detect change
524
+
if( CMAKE_AR )
525
+
string( LENGTH "${ANDROID_NDK}" __length )
526
+
string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath )
527
+
if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK )
528
+
message( FATAL_ERROR "It is not possible to change path to the NDK on subsequent run." )
529
+
endif()
530
+
unset( __androidNdkPreviousPath )
531
+
unset( __length )
532
+
endif()
533
+
set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" )
534
+
set( BUILD_WITH_ANDROID_NDK True )
535
+
elseif( ANDROID_STANDALONE_TOOLCHAIN )
536
+
get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE )
537
+
# try to detect change
538
+
if( CMAKE_AR )
539
+
string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length )
540
+
string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath )
541
+
if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN )
542
+
message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." )
543
+
endif()
544
+
unset( __androidStandaloneToolchainPreviousPath )
545
+
unset( __length )
546
+
endif()
547
+
set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" )
548
+
set( BUILD_WITH_STANDALONE_TOOLCHAIN True )
549
+
else()
550
+
list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH)
551
+
message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolcahin.
552
+
You should either set an environment variable:
553
+
export ANDROID_NDK=~/my-android-ndk
554
+
or
555
+
export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain
556
+
or put the toolchain or NDK in the default path:
557
+
sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH}
558
+
sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" )
559
+
endif()
560
+
561
+
# get all the details about standalone toolchain
562
+
if( BUILD_WITH_STANDALONE_TOOLCHAIN )
563
+
__DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" )
564
+
set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
565
+
set( __availableToolchains "standalone" )
566
+
__DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" )
567
+
if( NOT __availableToolchainMachines )
568
+
message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." )
569
+
endif()
570
+
if( __availableToolchainMachines MATCHES i686 )
571
+
set( __availableToolchainArchs "x86" )
572
+
elseif( __availableToolchainMachines MATCHES arm )
573
+
set( __availableToolchainArchs "arm" )
574
+
elseif( __availableToolchainMachines MATCHES mipsel )
575
+
set( __availableToolchainArchs "mipsel" )
576
+
endif()
577
+
if( ANDROID_COMPILER_VERSION )
578
+
# do not run gcc every time because it is relatevely expencive
579
+
set( __availableToolchainCompilerVersions "${ANDROID_COMPILER_VERSION}" )
580
+
else()
581
+
execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version
582
+
OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE )
583
+
# arm-linux-androideabi-gcc (GCC) 4.6 20120106 (prerelease)
584
+
string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
585
+
if( NOT __availableToolchainCompilerVersions )
586
+
# arm-linux-androideabi-gcc (GCC) 4.8
587
+
execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version
588
+
OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE )
589
+
string( REGEX MATCH "[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
590
+
endif()
591
+
endif()
592
+
endif()
593
+
594
+
# get all the details about NDK
595
+
if( BUILD_WITH_ANDROID_NDK )
596
+
file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" )
597
+
string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" )
598
+
file( GLOB __availableToolchains RELATIVE "${ANDROID_NDK}/toolchains" "${ANDROID_NDK}/toolchains/*" )
599
+
__LIST_FILTER( __availableToolchains "^[.]" )
600
+
set( __availableToolchainMachines "" )
601
+
set( __availableToolchainArchs "" )
602
+
set( __availableToolchainCompilerVersions "" )
603
+
foreach( __toolchain ${__availableToolchains} )
604
+
__DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK}/toolchains/${__toolchain}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
605
+
if( __machine )
606
+
string( REGEX MATCH "[0-9]+[.][0-9]+[.]*[0-9]*$" __version "${__toolchain}" )
607
+
string( REGEX MATCH "^[^-]+" __arch "${__toolchain}" )
608
+
list( APPEND __availableToolchainMachines "${__machine}" )
609
+
list( APPEND __availableToolchainArchs "${__arch}" )
610
+
list( APPEND __availableToolchainCompilerVersions "${__version}" )
611
+
else()
612
+
list( REMOVE_ITEM __availableToolchains "${__toolchain}" )
613
+
endif()
614
+
endforeach()
615
+
if( NOT __availableToolchains )
616
+
message( FATAL_ERROR "Could not any working toolchain in the NDK. Probably your Android NDK is broken." )
617
+
endif()
618
+
endif()
619
+
620
+
# build list of available ABIs
621
+
if( NOT ANDROID_SUPPORTED_ABIS )
622
+
set( ANDROID_SUPPORTED_ABIS "" )
623
+
set( __uniqToolchainArchNames ${__availableToolchainArchs} )
624
+
list( REMOVE_DUPLICATES __uniqToolchainArchNames )
625
+
list( SORT __uniqToolchainArchNames )
626
+
foreach( __arch ${__uniqToolchainArchNames} )
627
+
list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} )
628
+
endforeach()
629
+
unset( __uniqToolchainArchNames )
630
+
if( NOT ANDROID_SUPPORTED_ABIS )
631
+
message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." )
632
+
endif()
633
+
endif()
634
+
635
+
# choose target ABI
636
+
__INIT_VARIABLE( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ANDROID_SUPPORTED_ABIS} )
637
+
# verify that target ABI is supported
638
+
list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx )
639
+
if( __androidAbiIdx EQUAL -1 )
640
+
string( REPLACE ";" "\", \"", PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" )
641
+
message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain.
642
+
Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\"
643
+
" )
644
+
endif()
645
+
unset( __androidAbiIdx )
646
+
647
+
# remember target ABI
648
+
set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE )
649
+
650
+
# set target ABI options
651
+
if( ANDROID_ABI STREQUAL "x86" )
652
+
set( X86 true )
653
+
set( ANDROID_NDK_ABI_NAME "x86" )
654
+
set( ANDROID_ARCH_NAME "x86" )
655
+
set( ANDROID_ARCH_FULLNAME "x86" )
656
+
set( CMAKE_SYSTEM_PROCESSOR "i686" )
657
+
elseif( ANDROID_ABI STREQUAL "mips" )
658
+
set( MIPS true )
659
+
set( ANDROID_NDK_ABI_NAME "mips" )
660
+
set( ANDROID_ARCH_NAME "mips" )
661
+
set( ANDROID_ARCH_FULLNAME "mipsel" )
662
+
set( CMAKE_SYSTEM_PROCESSOR "mips" )
663
+
elseif( ANDROID_ABI STREQUAL "armeabi" )
664
+
set( ARMEABI true )
665
+
set( ANDROID_NDK_ABI_NAME "armeabi" )
666
+
set( ANDROID_ARCH_NAME "arm" )
667
+
set( ANDROID_ARCH_FULLNAME "arm" )
668
+
set( CMAKE_SYSTEM_PROCESSOR "armv5te" )
669
+
elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" )
670
+
set( ARMEABI_V6 true )
671
+
set( ANDROID_NDK_ABI_NAME "armeabi" )
672
+
set( ANDROID_ARCH_NAME "arm" )
673
+
set( ANDROID_ARCH_FULLNAME "arm" )
674
+
set( CMAKE_SYSTEM_PROCESSOR "armv6" )
675
+
# need always fallback to older platform
676
+
set( ARMEABI true )
677
+
elseif( ANDROID_ABI STREQUAL "armeabi-v7a")
678
+
set( ARMEABI_V7A true )
679
+
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
680
+
set( ANDROID_ARCH_NAME "arm" )
681
+
set( ANDROID_ARCH_FULLNAME "arm" )
682
+
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
683
+
elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" )
684
+
set( ARMEABI_V7A true )
685
+
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
686
+
set( ANDROID_ARCH_NAME "arm" )
687
+
set( ANDROID_ARCH_FULLNAME "arm" )
688
+
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
689
+
set( VFPV3 true )
690
+
elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" )
691
+
set( ARMEABI_V7A true )
692
+
set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
693
+
set( ANDROID_ARCH_NAME "arm" )
694
+
set( ANDROID_ARCH_FULLNAME "arm" )
695
+
set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
696
+
set( VFPV3 true )
697
+
set( NEON true )
698
+
else()
699
+
message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." )
700
+
endif()
701
+
702
+
if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" )
703
+
# really dirty hack
704
+
# it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run...
705
+
file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" )
706
+
endif()
707
+
708
+
set( ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME}} CACHE INTERNAL "ANDROID_ABI can be changed only to one of these ABIs. Changing to any other ABI requires to reset cmake cache." )
709
+
if( CMAKE_VERSION VERSION_GREATER "2.8" )
710
+
list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME} )
711
+
set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_FULLNAME}} )
712
+
endif()
713
+
714
+
if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 )
715
+
__INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF )
716
+
set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE )
717
+
mark_as_advanced( ANDROID_FORCE_ARM_BUILD )
718
+
else()
719
+
unset( ANDROID_FORCE_ARM_BUILD CACHE )
720
+
endif()
721
+
722
+
# choose toolchain
723
+
if( ANDROID_TOOLCHAIN_NAME )
724
+
list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx )
725
+
if( __toolchainIdx EQUAL -1 )
726
+
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" )
727
+
endif()
728
+
list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch )
729
+
if( NOT __toolchainArch STREQUAL ANDROID_ARCH_FULLNAME )
730
+
message( SEND_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." )
731
+
endif()
732
+
else()
733
+
set( __toolchainIdx -1 )
734
+
set( __applicableToolchains "" )
735
+
set( __toolchainMaxVersion "0.0.0" )
736
+
list( LENGTH __availableToolchains __availableToolchainsCount )
737
+
math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" )
738
+
foreach( __idx RANGE ${__availableToolchainsCount} )
739
+
list( GET __availableToolchainArchs ${__idx} __toolchainArch )
740
+
if( __toolchainArch STREQUAL ANDROID_ARCH_FULLNAME )
741
+
list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion )
742
+
if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion )
743
+
set( __toolchainMaxVersion "${__toolchainVersion}" )
744
+
set( __toolchainIdx ${__idx} )
745
+
endif()
746
+
endif()
747
+
endforeach()
748
+
unset( __availableToolchainsCount )
749
+
unset( __toolchainMaxVersion )
750
+
unset( __toolchainVersion )
751
+
endif()
752
+
unset( __toolchainArch )
753
+
if( __toolchainIdx EQUAL -1 )
754
+
message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." )
755
+
endif()
756
+
list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME )
757
+
list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME )
758
+
list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION )
759
+
set( ANDROID_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" CACHE INTERNAL "Name of toolchain used" )
760
+
set( ANDROID_COMPILER_VERSION "${ANDROID_COMPILER_VERSION}" CACHE INTERNAL "compiler version from selected toolchain" )
761
+
unset( __toolchainIdx )
762
+
unset( __availableToolchains )
763
+
unset( __availableToolchainMachines )
764
+
unset( __availableToolchainArchs )
765
+
unset( __availableToolchainCompilerVersions )
766
+
767
+
# choose native API level
768
+
__INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL )
769
+
string( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" )
770
+
# validate
771
+
list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx )
772
+
if( __levelIdx EQUAL -1 )
773
+
message( SEND_ERROR "Specified Android native API level (${ANDROID_NATIVE_API_LEVEL}) is not supported by your NDK/toolchain." )
774
+
endif()
775
+
unset( __levelIdx )
776
+
if( BUILD_WITH_ANDROID_NDK )
777
+
__DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" )
778
+
if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL )
779
+
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." )
780
+
endif()
781
+
unset( __realApiLevel )
782
+
endif()
783
+
set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE )
784
+
if( CMAKE_VERSION VERSION_GREATER "2.8" )
785
+
list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS )
786
+
set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
787
+
endif()
788
+
789
+
# setup paths
790
+
if( BUILD_WITH_STANDALONE_TOOLCHAIN )
791
+
set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" )
792
+
set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" )
793
+
set( __stlLibPath "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" )
794
+
endif()
795
+
if( BUILD_WITH_ANDROID_NDK )
796
+
set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
797
+
set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" )
798
+
if( ANDROID_USE_STLPORT )
799
+
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" )
800
+
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}" )
801
+
else()
802
+
if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" )
803
+
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/include" )
804
+
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}" )
805
+
else()
806
+
set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include" )
807
+
set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}" )
808
+
endif()
809
+
endif()
810
+
endif()
811
+
812
+
# specify the cross compiler
813
+
set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" )
814
+
set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" )
815
+
set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "Assembler" )
816
+
if( CMAKE_VERSION VERSION_LESS 2.8.5 )
817
+
set( CMAKE_ASM_COMPILER_ARG1 "-c" )
818
+
endif()
819
+
# there may be a way to make cmake deduce these TODO deduce the rest of the tools
820
+
set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" )
821
+
set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" )
822
+
set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" )
823
+
set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" )
824
+
set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" )
825
+
set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" )
826
+
set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" )
827
+
set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" )
828
+
if( APPLE )
829
+
find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool )
830
+
if( NOT CMAKE_INSTALL_NAME_TOOL )
831
+
message( FATAL_ERROR "Could not find install_name_tool, please check your installation." )
832
+
endif()
833
+
mark_as_advanced( CMAKE_INSTALL_NAME_TOOL )
834
+
endif()
835
+
836
+
# export directories
837
+
set( ANDROID_SYSTEM_INCLUDE_DIRS "" )
838
+
set( ANDROID_SYSTEM_LIB_DIRS "" )
839
+
840
+
# setup output directories
841
+
set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" )
842
+
set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" )
843
+
844
+
if(NOT _CMAKE_IN_TRY_COMPILE)
845
+
if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" )
846
+
set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" )
847
+
else()
848
+
set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" )
849
+
endif()
850
+
set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" )
851
+
endif()
852
+
853
+
# includes
854
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_SYSROOT}/usr/include" )
855
+
if( __stlIncludePath AND EXISTS "${__stlIncludePath}" )
856
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlIncludePath}" )
857
+
endif()
858
+
859
+
# c++ bits includes
860
+
if( __stlLibPath AND EXISTS "${__stlLibPath}/include" )
861
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlLibPath}/include" )
862
+
endif()
863
+
if( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb/bits" )
864
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb" )
865
+
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" )
866
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" )
867
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" )
868
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" )
869
+
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/bits" )
870
+
list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" )
871
+
endif()
872
+
873
+
# flags and definitions
874
+
if(ANDROID_SYSROOT MATCHES "[ ;\"]")
875
+
set( ANDROID_C_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" )
876
+
set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" )
877
+
# quotes will break try_compile and compiler identification
878
+
message(WARNING "Your Android system root has non-alphanumeric symbols. It can break compiler features detection and the whole build.")
879
+
else()
880
+
set( ANDROID_C_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
881
+
set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
882
+
endif()
883
+
884
+
remove_definitions( -DANDROID )
885
+
add_definitions( -DANDROID )
886
+
887
+
# Force set compilers because standard identification works badly for us
888
+
include( CMakeForceCompiler )
889
+
CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU )
890
+
set( CMAKE_C_PLATFORM_ID Linux )
891
+
set( CMAKE_C_SIZEOF_DATA_PTR 4 )
892
+
set( CMAKE_C_HAS_ISYSROOT 1 )
893
+
set( CMAKE_C_COMPILER_ABI ELF )
894
+
CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU )
895
+
set( CMAKE_CXX_PLATFORM_ID Linux )
896
+
set( CMAKE_CXX_SIZEOF_DATA_PTR 4 )
897
+
set( CMAKE_CXX_HAS_ISYSROOT 1 )
898
+
set( CMAKE_CXX_COMPILER_ABI ELF )
899
+
# force ASM compiler (required for CMake < 2.8.5)
900
+
set( CMAKE_ASM_COMPILER_ID_RUN TRUE )
901
+
set( CMAKE_ASM_COMPILER_ID GNU )
902
+
set( CMAKE_ASM_COMPILER_WORKS TRUE )
903
+
set( CMAKE_ASM_COMPILER_FORCED TRUE )
904
+
set( CMAKE_COMPILER_IS_GNUASM 1)
905
+
906
+
# NDK flags
907
+
if( ARMEABI OR ARMEABI_V7A )
908
+
# NDK also defines -ffunction-sections -funwind-tables but they result in worse OpenCV performance
909
+
set( _CMAKE_CXX_FLAGS "-fpic -fstack-protector -no-canonical-prefixes -Wa,--noexecstack" )
910
+
set( _CMAKE_C_FLAGS "-fpic -fstack-protector -no-canonical-prefixes -Wa,--noexecstack" )
911
+
remove_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
912
+
add_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ )
913
+
# extra arm-specific flags
914
+
# The default Android build process does not pass -fsigned-char.
915
+
# set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fsigned-char" )
916
+
# set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" )
917
+
elseif( X86 )
918
+
set( _CMAKE_CXX_FLAGS "-no-canonical-prefixes -funwind-tables -fstack-protector -Wa,--noexecstack" )
919
+
set( _CMAKE_C_FLAGS "-no-canonical-prefixes -funwind-tables -fstack-protector -Wa,--noexecstack" )
920
+
elseif( MIPS )
921
+
set( _CMAKE_CXX_FLAGS "-fpic -Wno-psabi -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0 -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" )
922
+
set( _CMAKE_C_FLAGS "-fpic -Wno-psabi -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0 -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" )
923
+
# The default Android build process does not pass -fsigned-char.
924
+
# set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fsigned-char" )
925
+
# set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" )
926
+
else()
927
+
set( _CMAKE_CXX_FLAGS "" )
928
+
set( _CMAKE_C_FLAGS "" )
929
+
endif()
930
+
931
+
if( ANDROID_USE_STLPORT )
932
+
set( _CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" )
933
+
# set( _CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" )
934
+
else()
935
+
set( _CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS} -frtti -fexceptions" )
936
+
# set( _CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" )
937
+
endif()
938
+
939
+
# release and debug flags
940
+
if( ARMEABI OR ARMEABI_V7A )
941
+
if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 )
942
+
# It is recommended to use the -mthumb compiler flag to force the generation
943
+
# of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones).
944
+
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
945
+
# EW: Note that Android's normal build process uses
946
+
# -mthumb -Os -g -DNDEBUG -fomit-frame-pointer -fno-strict-aliasing -finline-limit=64
947
+
# and for debug, appends: -O0 -UNDEBUG -marm -fno-omit-frame-pointer
948
+
set( _CMAKE_CXX_FLAGS_RELEASE "-mthumb -O3 -finline-limit=64" )
949
+
set( _CMAKE_C_FLAGS_RELEASE "-mthumb -O3 -finline-limit=64" )
950
+
set( _CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -g -finline-limit=64" )
951
+
set( _CMAKE_C_FLAGS_DEBUG "-marm -O0 -g -finline-limit=64" )
952
+
else()
953
+
# always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI
954
+
# O3 instead of O2/Os in release mode - like cmake sets for desktop gcc
955
+
set( _CMAKE_CXX_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
956
+
set( _CMAKE_C_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" )
957
+
set( _CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
958
+
set( _CMAKE_C_FLAGS_DEBUG "-marm -O0 -finline-limit=300" )
959
+
endif()
960
+
elseif( X86 )
961
+
set( _CMAKE_CXX_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
962
+
set( _CMAKE_C_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
963
+
set( _CMAKE_CXX_FLAGS_DEBUG "-O0 -g -funswitch-loops -finline-limit=300" )
964
+
set( _CMAKE_C_FLAGS_DEBUG "-O0 -g -funswitch-loops -finline-limit=300" )
965
+
elseif( MIPS )
966
+
set( _CMAKE_CXX_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
967
+
set( _CMAKE_C_FLAGS_RELEASE "-O3 -funswitch-loops -finline-limit=300" )
968
+
set( _CMAKE_CXX_FLAGS_DEBUG "-O0 -g" )
969
+
set( _CMAKE_C_FLAGS_DEBUG "-O0 -g" )
970
+
endif()
971
+
set( _CMAKE_CXX_FLAGS_RELEASE "${_CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
972
+
set( _CMAKE_C_FLAGS_RELEASE "${_CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" )
973
+
set( _CMAKE_CXX_FLAGS_DEBUG "${_CMAKE_CXX_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
974
+
set( _CMAKE_C_FLAGS_DEBUG "${_CMAKE_C_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" )
975
+
976
+
# ABI-specific flags
977
+
if( ARMEABI_V7A )
978
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
979
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
980
+
if( NEON )
981
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=neon" )
982
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" )
983
+
elseif( VFPV3 )
984
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=vfpv3-d32" )
985
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d32" )
986
+
else()
987
+
# Default Android armv7 builds with -mfpu=vfpv3-d16.
988
+
# According to this:
989
+
# http://stackoverflow.com/questions/11831648/android-ndk-arm-build-settings-to-run-on-most-devices
990
+
# there was a bug in r7b which caused crashes.
991
+
# But r9 is the current as of this writing so developers really need to upgrade their ndk.
992
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -mfpu=vfpv3-d16" )
993
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" )
994
+
endif()
995
+
elseif( ARMEABI_V6 )
996
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" )
997
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" )
998
+
elseif( ARMEABI )
999
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
1000
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
1001
+
elseif( X86 )
1002
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS}" )#sse?
1003
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" )#sse?
1004
+
endif()
1005
+
1006
+
# linker flags
1007
+
if( NOT DEFINED __ndklibspath )
1008
+
set( __ndklibspath "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/ndklibs/${ANDROID_NDK_ABI_NAME}" )
1009
+
endif()
1010
+
list( APPEND ANDROID_SYSTEM_LIB_DIRS "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" )
1011
+
set( ANDROID_LINKER_FLAGS "" )
1012
+
1013
+
# STL
1014
+
if( ANDROID_USE_STLPORT )
1015
+
if( EXISTS "${__stlLibPath}/libstlport_static.a" )
1016
+
set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES> \"${__stlLibPath}/libstlport_static.a\"")
1017
+
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> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES> \"${__stlLibPath}/libstlport_static.a\"")
1018
+
endif()
1019
+
else( ANDROID_USE_STLPORT )
1020
+
if( EXISTS "${__stlLibPath}/libgnustl_static.a" )
1021
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/libgnustl_static.a" "${__ndklibspath}/libstdc++.a" )
1022
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" )
1023
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1024
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" )
1025
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1026
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/thumb/libstdc++.a" )
1027
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/thumb/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1028
+
elseif( EXISTS "${__stlLibPath}/libstdc++.a" )
1029
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/libstdc++.a" "${__ndklibspath}/libstdc++.a" )
1030
+
endif()
1031
+
if( EXISTS "${__stlLibPath}/libsupc++.a" )
1032
+
__COPY_IF_DIFFERENT( "${__stlLibPath}/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1033
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" )
1034
+
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1035
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" )
1036
+
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1037
+
elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" )
1038
+
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1039
+
elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" )
1040
+
__COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" "${__ndklibspath}/libsupc++.a" )
1041
+
endif()
1042
+
list( APPEND ANDROID_SYSTEM_LIB_DIRS "${__ndklibspath}" )
1043
+
endif( ANDROID_USE_STLPORT )
1044
+
1045
+
# cleanup for STL search
1046
+
unset( __stlIncludePath )
1047
+
unset( __stlLibPath )
1048
+
1049
+
# other linker flags
1050
+
__INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON )
1051
+
set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" FORCE )
1052
+
mark_as_advanced( ANDROID_NO_UNDEFINED )
1053
+
if( ANDROID_NO_UNDEFINED )
1054
+
set( ANDROID_LINKER_FLAGS "-Wl,--no-undefined ${ANDROID_LINKER_FLAGS}" )
1055
+
endif()
1056
+
1057
+
if (ANDROID_NDK MATCHES "-r[56].?$")
1058
+
# 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.
1059
+
__INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON )
1060
+
else()
1061
+
__INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF )
1062
+
endif()
1063
+
1064
+
set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE )
1065
+
mark_as_advanced( ANDROID_SO_UNDEFINED )
1066
+
if( ANDROID_SO_UNDEFINED )
1067
+
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" )
1068
+
endif()
1069
+
1070
+
# Android by default passes --function-sections for C and C++ but does not pass -fdata-sections.
1071
+
# Android also does not pass -Wl,--gc-sections
1072
+
__INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON )
1073
+
set( ANDROID_FUNCTION_LEVEL_LINKING ON CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE )
1074
+
mark_as_advanced( ANDROID_FUNCTION_LEVEL_LINKING )
1075
+
if( ANDROID_FUNCTION_LEVEL_LINKING )
1076
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS} -fdata-sections -ffunction-sections" )
1077
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" )
1078
+
set( ANDROID_LINKER_FLAGS "-Wl,--gc-sections ${ANDROID_LINKER_FLAGS}" )
1079
+
endif()
1080
+
1081
+
if( ARMEABI_V7A )
1082
+
# this is *required* to use the following linker flags that routes around
1083
+
# a CPU bug in some Cortex-A8 implementations:
1084
+
# set( ANDROID_LINKER_FLAGS "-Wl,--fix-cortex-a8 ${ANDROID_LINKER_FLAGS}" )
1085
+
# Android passes all this stuff by default.
1086
+
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1087
+
elseif( ARMEABI )
1088
+
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1089
+
elseif ( X86 )
1090
+
set( ANDROID_LINKER_FLAGS "-no-canonical-prefixes -Wl,--no-undefined -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now ${ANDROID_LINKER_FLAGS} -lc -lm" )
1091
+
endif()
1092
+
1093
+
# cache flags
1094
+
set( CMAKE_CXX_FLAGS "${_CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" )
1095
+
set( CMAKE_C_FLAGS "${_CMAKE_C_FLAGS}" CACHE STRING "c flags" )
1096
+
set( CMAKE_CXX_FLAGS_RELEASE "${_CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c++ Release flags" )
1097
+
set( CMAKE_C_FLAGS_RELEASE "${_CMAKE_C_FLAGS_RELEASE}" CACHE STRING "c Release flags" )
1098
+
set( CMAKE_CXX_FLAGS_DEBUG "${_CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c++ Debug flags" )
1099
+
set( CMAKE_C_FLAGS_DEBUG "${_CMAKE_C_FLAGS_DEBUG}" CACHE STRING "c Debug flags" )
1100
+
set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "linker flags" )
1101
+
set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "linker flags" )
1102
+
set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "linker flags" )
1103
+
1104
+
include_directories( SYSTEM ${ANDROID_SYSTEM_INCLUDE_DIRS} )
1105
+
link_directories( ${ANDROID_SYSTEM_LIB_DIRS} )
1106
+
1107
+
# finish flags
1108
+
set( ANDROID_C_FLAGS "${ANDROID_C_FLAGS}" CACHE INTERNAL "Extra Android C compiler flags")
1109
+
set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Extra Android C++ compiler flags")
1110
+
set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Extra Android linker flags")
1111
+
set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" )
1112
+
set( CMAKE_C_FLAGS "${ANDROID_C_FLAGS} ${CMAKE_C_FLAGS}" )
1113
+
if( MIPS AND BUILD_WITH_ANDROID_NDK )
1114
+
set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.xsc ${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" )
1115
+
set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.xsc ${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" )
1116
+
set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/mipself.x ${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" )
1117
+
else()
1118
+
set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" )
1119
+
set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" )
1120
+
set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" )
1121
+
endif()
1122
+
1123
+
# set these global flags for cmake client scripts to change behavior
1124
+
set( ANDROID True )
1125
+
set( BUILD_ANDROID True )
1126
+
1127
+
# where is the target environment
1128
+
set( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" "${CMAKE_FIND_ROOT_PATH}" )
1129
+
1130
+
# only search for libraries and includes in the ndk toolchain
1131
+
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1132
+
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1133
+
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1134
+
1135
+
1136
+
# macro to find packages on the host OS
1137
+
macro( find_host_package )
1138
+
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1139
+
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1140
+
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1141
+
if( CMAKE_HOST_WIN32 )
1142
+
SET( WIN32 1 )
1143
+
SET( UNIX )
1144
+
elseif( CMAKE_HOST_APPLE )
1145
+
SET( APPLE 1 )
1146
+
SET( UNIX )
1147
+
endif()
1148
+
find_package( ${ARGN} )
1149
+
SET( WIN32 )
1150
+
SET( APPLE )
1151
+
SET( UNIX 1 )
1152
+
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1153
+
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1154
+
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1155
+
endmacro()
1156
+
1157
+
1158
+
# macro to find programs on the host OS
1159
+
macro( find_host_program )
1160
+
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1161
+
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1162
+
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1163
+
if( CMAKE_HOST_WIN32 )
1164
+
SET( WIN32 1 )
1165
+
SET( UNIX )
1166
+
elseif( CMAKE_HOST_APPLE )
1167
+
SET( APPLE 1 )
1168
+
SET( UNIX )
1169
+
endif()
1170
+
find_program( ${ARGN} )
1171
+
SET( WIN32 )
1172
+
SET( APPLE )
1173
+
SET( UNIX 1 )
1174
+
set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1175
+
set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1176
+
set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1177
+
endmacro()
1178
+
1179
+
1180
+
macro( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR )
1181
+
if( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" )
1182
+
set( ${VAR} "armeabi" )
1183
+
elseif( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" )
1184
+
set( ${VAR} "armeabi-v7a" )
1185
+
elseif( "${TOOLCHAIN_FLAG}" STREQUAL "X86" )
1186
+
set( ${VAR} "x86" )
1187
+
else()
1188
+
set( ${VAR} "unknown" )
1189
+
endif()
1190
+
endmacro()
1191
+
1192
+
1193
+
# export toolchain settings for the try_compile() command
1194
+
if( NOT PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" )
1195
+
set( __toolchain_config "")
1196
+
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 __ndklibspath )
1197
+
if( DEFINED ${__var} )
1198
+
if( "${__var}" MATCHES " ")
1199
+
set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" )
1200
+
else()
1201
+
set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" )
1202
+
endif()
1203
+
endif()
1204
+
endforeach()
1205
+
file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" )
1206
+
unset( __toolchain_config )
1207
+
unset( __ndklibspath )
1208
+
endif()
1209
+
1210
+
1211
+
# set some obsolete variables for backward compatibility
1212
+
set( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" )
1213
+
mark_as_advanced( ANDROID_SET_OBSOLETE_VARIABLES )
1214
+
if( ANDROID_SET_OBSOLETE_VARIABLES )
1215
+
set( ANDROID_API_LEVEL ${ANDROID_NATIVE_API_LEVEL} )
1216
+
set( ARM_TARGET "${ANDROID_ABI}" )
1217
+
set( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" )
1218
+
endif()
1219
+
1220
+
1221
+
# Variables controlling behavior or set by cmake toolchain:
1222
+
# ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86", "mips"
1223
+
# ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version)
1224
+
# ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF
1225
+
# ANDROID_USE_STLPORT : OFF/ON - EXPERIMENTAL!!!
1226
+
# ANDROID_FORBID_SYGWIN : ON/OFF
1227
+
# ANDROID_NO_UNDEFINED : ON/OFF
1228
+
# ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version)
1229
+
# ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF
1230
+
# Variables that takes effect only at first run:
1231
+
# ANDROID_FORCE_ARM_BUILD : ON/OFF
1232
+
# LIBRARY_OUTPUT_PATH_ROOT : <any valid path>
1233
+
# Can be set only at the first run:
1234
+
# ANDROID_NDK
1235
+
# ANDROID_STANDALONE_TOOLCHAIN
1236
+
# ANDROID_TOOLCHAIN_NAME : "arm-linux-androideabi-4.4.3" or "arm-linux-androideabi-4.6" or "mipsel-linux-android-4.4.3" or "mipsel-linux-android-4.6" or "x86-4.4.3" or "x86-4.6"
1237
+
# Obsolete:
1238
+
# ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL
1239
+
# ARM_TARGET : superseded by ANDROID_ABI
1240
+
# ARM_TARGETS : superseded by ANDROID_ABI (can be set only)
1241
+
# ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only)
1242
+
# ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed)
1243
+
#
1244
+
# Primary read-only variables:
1245
+
# ANDROID : always TRUE
1246
+
# ARMEABI : TRUE for arm v6 and older devices
1247
+
# ARMEABI_V6 : TRUE for arm v6
1248
+
# ARMEABI_V7A : TRUE for arm v7a
1249
+
# NEON : TRUE if NEON unit is enabled
1250
+
# VFPV3 : TRUE if VFP version 3 is enabled
1251
+
# X86 : TRUE if configured for x86
1252
+
# BUILD_ANDROID : always TRUE
1253
+
# BUILD_WITH_ANDROID_NDK : TRUE if NDK is used
1254
+
# BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used
1255
+
# ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform
1256
+
# ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a" or "x86" depending on ANDROID_ABI
1257
+
# ANDROID_ARCH_NAME : "arm" or "x86" or "mips" depending on ANDROID_ABI
1258
+
# TOOL_OS_SUFFIX : "" or ".exe" depending on host platform
1259
+
# ANDROID_SYSROOT : path to the compiler sysroot
1260
+
# ANDROID_SYSTEM_INCLUDE_DIRS
1261
+
# ANDROID_SYSTEM_LIB_DIRS
1262
+
# Obsolete:
1263
+
# ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME
1264
+
#
1265
+
# Secondary (less stable) read-only variables:
1266
+
# ANDROID_COMPILER_VERSION : GCC version used
1267
+
# ANDROID_C_FLAGS : C compiler flags required by Android platform
1268
+
# ANDROID_CXX_FLAGS : C++ compiler flags required by Android platform
1269
+
# ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI
1270
+
# ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux"
1271
+
# ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK)
1272
+
# ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK
1273
+
#
1274
+
# Defaults:
1275
+
# ANDROID_DEFAULT_NDK_API_LEVEL
1276
+
# ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH}
1277
+
# ANDROID_NDK_SEARCH_PATHS
1278
+
# ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH
1279
+
# ANDROID_SUPPORTED_ABIS_${ARCH}
1280
+
# ANDROID_SUPPORTED_NDK_VERSIONS