1 # Copyright (c) 2010-2011, Ethan Rublee
2 # Copyright (c) 2011-2014, Andrey Kamaev
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are met:
8 # 1. Redistributions of source code must retain the above copyright notice,
9 # this list of conditions and the following disclaimer.
11 # 2. Redistributions in binary form must reproduce the above copyright notice,
12 # this list of conditions and the following disclaimer in the documentation
13 # and/or other materials provided with the distribution.
15 # 3. Neither the name of the copyright holder nor the names of its
16 # contributors may be used to endorse or promote products derived from this
17 # software without specific prior written permission.
19 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 # POSSIBILITY OF SUCH DAMAGE.
31 # ------------------------------------------------------------------------------
32 # Android CMake toolchain file, for use with the Android NDK r5-r10d
33 # Requires cmake 2.6.3 or newer (2.8.9 or newer is recommended).
34 # See home page: https://github.com/taka-no-me/android-cmake
37 # $ export ANDROID_NDK=/absolute/path/to/the/android-ndk
38 # $ mkdir build && cd build
39 # $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake ..
43 # You need native port of make to build your project.
44 # Android NDK r7 (and newer) already has make.exe on board.
45 # For older NDK you have to install it separately.
46 # For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm
48 # $ SET ANDROID_NDK=C:\absolute\path\to\the\android-ndk
49 # $ mkdir build && cd build
50 # $ cmake.exe -G"MinGW Makefiles"
51 # -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake
52 # -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows\bin\make.exe" ..
53 # $ cmake.exe --build .
56 # Options (can be set as cmake parameters: -D<option_name>=<value>):
57 # ANDROID_NDK=/opt/android-ndk - path to the NDK root.
58 # Can be set as environment variable. Can be set only at first cmake run.
60 # ANDROID_ABI=armeabi-v7a - specifies the target Application Binary
61 # Interface (ABI). This option nearly matches to the APP_ABI variable
62 # used by ndk-build tool from Android NDK.
64 # Possible targets are:
65 # "armeabi" - ARMv5TE based CPU with software floating point operations
66 # "armeabi-v7a" - ARMv7 based devices with hardware FPU instructions
67 # this ABI target is used by default
68 # "armeabi-v7a-hard with NEON" - ARMv7 based devices with hardware FPU instructions and hardfp
69 # "armeabi-v7a with NEON" - same as armeabi-v7a, but
70 # sets NEON as floating-point unit
71 # "armeabi-v7a with VFPV3" - same as armeabi-v7a, but
72 # sets VFPV3 as floating-point unit (has 32 registers instead of 16)
73 # "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP
74 # "x86" - IA-32 instruction set
75 # "mips" - MIPS32 instruction set
77 # 64-bit ABIs for NDK r10 and newer:
78 # "arm64-v8a" - ARMv8 AArch64 instruction set
79 # "x86_64" - Intel64 instruction set (r1)
80 # "mips64" - MIPS64 instruction set (r6)
82 # ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for.
83 # Option is read-only when standalone toolchain is used.
84 # Note: building for "android-L" requires explicit configuration.
86 # ANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 - the name of compiler
87 # toolchain to be used. The list of possible values depends on the NDK
88 # version. For NDK r10c the possible values are:
90 # * aarch64-linux-android-4.9
91 # * aarch64-linux-android-clang3.4
92 # * aarch64-linux-android-clang3.5
93 # * arm-linux-androideabi-4.6
94 # * arm-linux-androideabi-4.8
95 # * arm-linux-androideabi-4.9 (default)
96 # * arm-linux-androideabi-clang3.4
97 # * arm-linux-androideabi-clang3.5
98 # * mips64el-linux-android-4.9
99 # * mips64el-linux-android-clang3.4
100 # * mips64el-linux-android-clang3.5
101 # * mipsel-linux-android-4.6
102 # * mipsel-linux-android-4.8
103 # * mipsel-linux-android-4.9
104 # * mipsel-linux-android-clang3.4
105 # * mipsel-linux-android-clang3.5
115 # ANDROID_FORCE_ARM_BUILD=OFF - set ON to generate 32-bit ARM instructions
116 # instead of Thumb. Is not available for "armeabi-v6 with VFP"
117 # (is forced to be ON) ABI.
119 # ANDROID_NO_UNDEFINED=ON - set ON to show all undefined symbols as linker
120 # errors even if they are not used.
122 # ANDROID_SO_UNDEFINED=OFF - set ON to allow undefined symbols in shared
123 # libraries. Automatically turned for NDK r5x and r6x due to GLESv2
126 # ANDROID_STL=gnustl_static - specify the runtime to use.
128 # Possible values are:
129 # none -> Do not configure the runtime.
130 # system -> Use the default minimal system C++ runtime library.
131 # Implies -fno-rtti -fno-exceptions.
132 # Is not available for standalone toolchain.
133 # system_re -> Use the default minimal system C++ runtime library.
134 # Implies -frtti -fexceptions.
135 # Is not available for standalone toolchain.
136 # gabi++_static -> Use the GAbi++ runtime as a static library.
137 # Implies -frtti -fno-exceptions.
138 # Available for NDK r7 and newer.
139 # Is not available for standalone toolchain.
140 # gabi++_shared -> Use the GAbi++ runtime as a shared library.
141 # Implies -frtti -fno-exceptions.
142 # Available for NDK r7 and newer.
143 # Is not available for standalone toolchain.
144 # stlport_static -> Use the STLport runtime as a static library.
145 # Implies -fno-rtti -fno-exceptions for NDK before r7.
146 # Implies -frtti -fno-exceptions for NDK r7 and newer.
147 # Is not available for standalone toolchain.
148 # stlport_shared -> Use the STLport runtime as a shared library.
149 # Implies -fno-rtti -fno-exceptions for NDK before r7.
150 # Implies -frtti -fno-exceptions for NDK r7 and newer.
151 # Is not available for standalone toolchain.
152 # gnustl_static -> Use the GNU STL as a static library.
153 # Implies -frtti -fexceptions.
154 # gnustl_shared -> Use the GNU STL as a shared library.
155 # Implies -frtti -fno-exceptions.
156 # Available for NDK r7b and newer.
157 # Silently degrades to gnustl_static if not available.
159 # ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on
160 # chosen runtime. If disabled, then the user is responsible for settings
164 # android-cmake toolchain searches for NDK/toolchain in the following order:
165 # ANDROID_NDK - cmake parameter
166 # ANDROID_NDK - environment variable
167 # ANDROID_STANDALONE_TOOLCHAIN - cmake parameter
168 # ANDROID_STANDALONE_TOOLCHAIN - environment variable
169 # ANDROID_NDK - default locations
170 # ANDROID_STANDALONE_TOOLCHAIN - default locations
172 # Make sure to do the following in your scripts:
173 # SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" )
174 # SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" )
175 # The flags will be prepopulated with critical flags, so don't loose them.
176 # Also be aware that toolchain also sets configuration-specific compiler
177 # flags and linker flags.
179 # ANDROID and BUILD_ANDROID will be set to true, you may test any of these
180 # variables to make necessary Android-specific configuration changes.
182 # Also ARMEABI or ARMEABI_V7A or ARMEABI_V7A_HARD or X86 or MIPS or ARM64_V8A or X86_64 or MIPS64
183 # will be set true, mutually exclusive. NEON option will be set true
184 # if VFP is set to NEON.
186 # ------------------------------------------------------------------------------
188 cmake_minimum_required( VERSION 2.6.3 )
190 if( DEFINED CMAKE_CROSSCOMPILING )
191 # subsequent toolchain loading is not really needed
195 if( CMAKE_TOOLCHAIN_FILE )
196 # touch toolchain variable to suppress "unused variable" warning
199 # inherit settings in recursive loads
200 get_property( _CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE )
201 if( _CMAKE_IN_TRY_COMPILE )
202 include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL )
205 # this one is important
206 if( CMAKE_VERSION VERSION_GREATER "3.0.99" )
207 set( CMAKE_SYSTEM_NAME Android )
209 set( CMAKE_SYSTEM_NAME Linux )
212 # this one not so much
213 set( CMAKE_SYSTEM_VERSION 1 )
215 # rpath makes low sense for Android
216 set( CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "" )
217 set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." )
220 set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r10d -r10c -r10b -r10 -r9d -r9c -r9b -r9 -r8e -r8d -r8c -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" )
221 if( NOT DEFINED ANDROID_NDK_SEARCH_PATHS )
222 if( CMAKE_HOST_WIN32 )
223 file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS )
224 set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}" "$ENV{SystemDrive}/NVPACK" )
226 file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS )
227 set( ANDROID_NDK_SEARCH_PATHS /opt "${ANDROID_NDK_SEARCH_PATHS}/NVPACK" )
230 if( NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH )
231 set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain )
235 set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a-hard with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" )
236 set( ANDROID_SUPPORTED_ABIS_arm64 "arm64-v8a" )
237 set( ANDROID_SUPPORTED_ABIS_x86 "x86" )
238 set( ANDROID_SUPPORTED_ABIS_x86_64 "x86_64" )
239 set( ANDROID_SUPPORTED_ABIS_mips "mips" )
240 set( ANDROID_SUPPORTED_ABIS_mips64 "mips64" )
243 set( ANDROID_DEFAULT_NDK_API_LEVEL 8 )
244 set( ANDROID_DEFAULT_NDK_API_LEVEL_arm64 21 )
245 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 )
246 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86_64 21 )
247 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 )
248 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips64 21 )
251 macro( __LIST_FILTER listvar regex )
253 foreach( __val ${${listvar}} )
254 if( __val MATCHES "${regex}" )
255 list( REMOVE_ITEM ${listvar} "${__val}" )
261 macro( __INIT_VARIABLE var_name )
263 foreach( __var ${ARGN} )
264 if( __var STREQUAL "PATH" )
270 if( __test_path AND NOT EXISTS "${${var_name}}" )
271 unset( ${var_name} CACHE )
274 if( " ${${var_name}}" STREQUAL " " )
276 foreach( __var ${ARGN} )
277 if( __var STREQUAL "VALUES" )
279 elseif( NOT __var STREQUAL "PATH" )
280 if( __var MATCHES "^ENV_.*$" )
281 string( REPLACE "ENV_" "" __var "${__var}" )
282 set( __value "$ENV{${__var}}" )
283 elseif( DEFINED ${__var} )
284 set( __value "${${__var}}" )
286 set( __value "${__var}" )
291 if( NOT " ${__value}" STREQUAL " " AND (NOT __test_path OR EXISTS "${__value}") )
292 set( ${var_name} "${__value}" )
302 file( TO_CMAKE_PATH "${${var_name}}" ${var_name} )
307 macro( __DETECT_NATIVE_API_LEVEL _var _path )
308 set( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*.*$" )
309 file( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" )
310 if( NOT __apiFileContent )
311 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." )
313 string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" )
314 unset( __apiFileContent )
315 unset( __ndkApiLevelRegex )
318 macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root )
319 if( EXISTS "${_root}" )
320 file( GLOB __gccExePath RELATIVE "${_root}/bin/" "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" )
321 __LIST_FILTER( __gccExePath "^[.].*" )
322 list( LENGTH __gccExePath __gccExePathsCount )
323 if( NOT __gccExePathsCount EQUAL 1 AND NOT _CMAKE_IN_TRY_COMPILE )
324 message( WARNING "Could not determine machine name for compiler from ${_root}" )
327 get_filename_component( __gccExeName "${__gccExePath}" NAME_WE )
328 string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" )
330 unset( __gccExePath )
331 unset( __gccExePathsCount )
332 unset( __gccExeName )
339 # fight against cygwin
340 set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools")
341 mark_as_advanced( ANDROID_FORBID_SYGWIN )
342 if( ANDROID_FORBID_SYGWIN )
344 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." )
347 if( CMAKE_HOST_WIN32 )
348 # remove cygwin from PATH
349 set( __new_path "$ENV{PATH}")
350 __LIST_FILTER( __new_path "cygwin" )
351 set(ENV{PATH} "${__new_path}")
357 # detect current host platform
358 if( NOT DEFINED ANDROID_NDK_HOST_X64 AND (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64" OR CMAKE_HOST_APPLE) )
359 set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" )
360 mark_as_advanced( ANDROID_NDK_HOST_X64 )
363 set( TOOL_OS_SUFFIX "" )
364 if( CMAKE_HOST_APPLE )
365 set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86_64" )
366 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "darwin-x86" )
367 elseif( CMAKE_HOST_WIN32 )
368 set( ANDROID_NDK_HOST_SYSTEM_NAME "windows-x86_64" )
369 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "windows" )
370 set( TOOL_OS_SUFFIX ".exe" )
371 elseif( CMAKE_HOST_UNIX )
372 set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86_64" )
373 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "linux-x86" )
375 message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" )
378 if( NOT ANDROID_NDK_HOST_X64 )
379 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} )
382 # see if we have path to Android NDK
383 if( NOT ANDROID_NDK AND NOT ANDROID_STANDALONE_TOOLCHAIN )
384 __INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK )
386 if( NOT ANDROID_NDK )
387 # see if we have path to Android standalone toolchain
388 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN )
390 if( NOT ANDROID_STANDALONE_TOOLCHAIN )
391 #try to find Android NDK in one of the the default locations
392 set( __ndkSearchPaths )
393 foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} )
394 foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} )
395 list( APPEND __ndkSearchPaths "${__ndkSearchPath}/android-ndk${suffix}" )
398 __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} )
399 unset( __ndkSearchPaths )
402 message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" )
403 message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" )
405 #try to find Android standalone toolchain in one of the the default locations
406 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH )
408 if( ANDROID_STANDALONE_TOOLCHAIN )
409 message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" )
410 message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" )
411 endif( ANDROID_STANDALONE_TOOLCHAIN )
413 endif( NOT ANDROID_STANDALONE_TOOLCHAIN )
414 endif( NOT ANDROID_NDK )
416 # remember found paths
418 get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE )
419 set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" FORCE )
420 set( BUILD_WITH_ANDROID_NDK True )
421 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT" )
422 file( STRINGS "${ANDROID_NDK}/RELEASE.TXT" ANDROID_NDK_RELEASE_FULL LIMIT_COUNT 1 REGEX "r[0-9]+[a-z]?" )
423 string( REGEX MATCH "r([0-9]+)([a-z]?)" ANDROID_NDK_RELEASE "${ANDROID_NDK_RELEASE_FULL}" )
425 set( ANDROID_NDK_RELEASE "r1x" )
426 set( ANDROID_NDK_RELEASE_FULL "unreleased" )
428 string( REGEX REPLACE "r([0-9]+)([a-z]?)" "\\1*1000" ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE}" )
429 string( FIND " abcdefghijklmnopqastuvwxyz" "${CMAKE_MATCH_2}" __ndkReleaseLetterNum )
430 math( EXPR ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE_NUM}+${__ndkReleaseLetterNum}" )
431 elseif( ANDROID_STANDALONE_TOOLCHAIN )
432 get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE )
433 # try to detect change
435 string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length )
436 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath )
437 if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN )
438 message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." )
440 unset( __androidStandaloneToolchainPreviousPath )
443 set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" FORCE )
444 set( BUILD_WITH_STANDALONE_TOOLCHAIN True )
446 list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH)
447 message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolchain.
448 You should either set an environment variable:
449 export ANDROID_NDK=~/my-android-ndk
451 export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain
452 or put the toolchain or NDK in the default path:
453 sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH}/android-ndk
454 sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" )
458 if( BUILD_WITH_ANDROID_NDK )
459 if( NOT DEFINED ANDROID_NDK_LAYOUT )
460 # try to automatically detect the layout
461 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT")
462 set( ANDROID_NDK_LAYOUT "RELEASE" )
463 elseif( EXISTS "${ANDROID_NDK}/../../linux-x86/toolchain/" )
464 set( ANDROID_NDK_LAYOUT "LINARO" )
465 elseif( EXISTS "${ANDROID_NDK}/../../gcc/" )
466 set( ANDROID_NDK_LAYOUT "ANDROID" )
469 set( ANDROID_NDK_LAYOUT "${ANDROID_NDK_LAYOUT}" CACHE STRING "The inner layout of NDK" )
470 mark_as_advanced( ANDROID_NDK_LAYOUT )
471 if( ANDROID_NDK_LAYOUT STREQUAL "LINARO" )
472 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment
473 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../${ANDROID_NDK_HOST_SYSTEM_NAME}/toolchain" )
474 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" )
475 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" )
476 elseif( ANDROID_NDK_LAYOUT STREQUAL "ANDROID" )
477 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment
478 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../gcc/${ANDROID_NDK_HOST_SYSTEM_NAME}/arm" )
479 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" )
480 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" )
481 else() # ANDROID_NDK_LAYOUT STREQUAL "RELEASE"
482 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/toolchains" )
483 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" )
484 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME2}" )
486 get_filename_component( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK_TOOLCHAINS_PATH}" ABSOLUTE )
488 # try to detect change of NDK
490 string( LENGTH "${ANDROID_NDK_TOOLCHAINS_PATH}" __length )
491 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath )
492 if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK_TOOLCHAINS_PATH )
493 message( FATAL_ERROR "It is not possible to change the path to the NDK on subsequent CMake run. You must remove all generated files from your build folder first.
496 unset( __androidNdkPreviousPath )
502 # get all the details about standalone toolchain
503 if( BUILD_WITH_STANDALONE_TOOLCHAIN )
504 __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" )
505 set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
506 set( __availableToolchains "standalone" )
507 __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" )
508 if( NOT __availableToolchainMachines )
509 message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." )
511 if( __availableToolchainMachines MATCHES x86_64 )
512 set( __availableToolchainArchs "x86_64" )
513 elseif( __availableToolchainMachines MATCHES i686 )
514 set( __availableToolchainArchs "x86" )
515 elseif( __availableToolchainMachines MATCHES aarch64 )
516 set( __availableToolchainArchs "arm64" )
517 elseif( __availableToolchainMachines MATCHES arm )
518 set( __availableToolchainArchs "arm" )
519 elseif( __availableToolchainMachines MATCHES mips64el )
520 set( __availableToolchainArchs "mips64" )
521 elseif( __availableToolchainMachines MATCHES mipsel )
522 set( __availableToolchainArchs "mips" )
524 execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" -dumpversion
525 OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE )
526 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9]+)?" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" )
527 if( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/bin/clang${TOOL_OS_SUFFIX}" )
528 list( APPEND __availableToolchains "standalone-clang" )
529 list( APPEND __availableToolchainMachines ${__availableToolchainMachines} )
530 list( APPEND __availableToolchainArchs ${__availableToolchainArchs} )
531 list( APPEND __availableToolchainCompilerVersions ${__availableToolchainCompilerVersions} )
535 macro( __GLOB_NDK_TOOLCHAINS __availableToolchainsVar __availableToolchainsLst __toolchain_subpath )
536 foreach( __toolchain ${${__availableToolchainsLst}} )
537 if( "${__toolchain}" MATCHES "-clang3[.][0-9]$" AND NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}${__toolchain_subpath}" )
538 SET( __toolchainVersionRegex "^TOOLCHAIN_VERSION[\t ]+:=[\t ]+(.*)$" )
539 FILE( STRINGS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}/setup.mk" __toolchainVersionStr REGEX "${__toolchainVersionRegex}" )
540 if( __toolchainVersionStr )
541 string( REGEX REPLACE "${__toolchainVersionRegex}" "\\1" __toolchainVersionStr "${__toolchainVersionStr}" )
542 string( REGEX REPLACE "-clang3[.][0-9]$" "-${__toolchainVersionStr}" __gcc_toolchain "${__toolchain}" )
544 string( REGEX REPLACE "-clang3[.][0-9]$" "-4.6" __gcc_toolchain "${__toolchain}" )
546 unset( __toolchainVersionStr )
547 unset( __toolchainVersionRegex )
549 set( __gcc_toolchain "${__toolchain}" )
551 __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK_TOOLCHAINS_PATH}/${__gcc_toolchain}${__toolchain_subpath}" )
553 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9x]+)?$" __version "${__gcc_toolchain}" )
554 if( __machine MATCHES x86_64 )
555 set( __arch "x86_64" )
556 elseif( __machine MATCHES i686 )
558 elseif( __machine MATCHES aarch64 )
559 set( __arch "arm64" )
560 elseif( __machine MATCHES arm )
562 elseif( __machine MATCHES mips64el )
563 set( __arch "mips64" )
564 elseif( __machine MATCHES mipsel )
569 #message("machine: !${__machine}!\narch: !${__arch}!\nversion: !${__version}!\ntoolchain: !${__toolchain}!\n")
571 list( APPEND __availableToolchainMachines "${__machine}" )
572 list( APPEND __availableToolchainArchs "${__arch}" )
573 list( APPEND __availableToolchainCompilerVersions "${__version}" )
574 list( APPEND ${__availableToolchainsVar} "${__toolchain}" )
577 unset( __gcc_toolchain )
581 # get all the details about NDK
582 if( BUILD_WITH_ANDROID_NDK )
583 file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" )
584 string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" )
585 set( __availableToolchains "" )
586 set( __availableToolchainMachines "" )
587 set( __availableToolchainArchs "" )
588 set( __availableToolchainCompilerVersions "" )
589 if( ANDROID_TOOLCHAIN_NAME AND EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_TOOLCHAIN_NAME}/" )
590 # do not go through all toolchains if we know the name
591 set( __availableToolchainsLst "${ANDROID_TOOLCHAIN_NAME}" )
592 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" )
593 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 )
594 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" )
595 if( __availableToolchains )
596 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} )
600 if( NOT __availableToolchains )
601 file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" )
602 if( __availableToolchainsLst )
603 list(SORT __availableToolchainsLst) # we need clang to go after gcc
605 __LIST_FILTER( __availableToolchainsLst "^[.]" )
606 __LIST_FILTER( __availableToolchainsLst "llvm" )
607 __LIST_FILTER( __availableToolchainsLst "renderscript" )
608 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" )
609 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 )
610 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" )
611 if( __availableToolchains )
612 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} )
616 if( NOT __availableToolchains )
617 message( FATAL_ERROR "Could not find any working toolchain in the NDK. Probably your Android NDK is broken." )
621 # build list of available 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}} )
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." )
635 __INIT_VARIABLE( ANDROID_ABI VALUES ${ANDROID_SUPPORTED_ABIS} )
636 # verify that target ABI is supported
637 list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx )
638 if( __androidAbiIdx EQUAL -1 )
639 string( REPLACE ";" "\", \"" PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" )
640 message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain.
641 Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\"
644 unset( __androidAbiIdx )
646 # set target ABI options
647 if( ANDROID_ABI STREQUAL "x86" )
649 set( ANDROID_NDK_ABI_NAME "x86" )
650 set( ANDROID_ARCH_NAME "x86" )
651 set( ANDROID_LLVM_TRIPLE "i686-none-linux-android" )
652 set( CMAKE_SYSTEM_PROCESSOR "i686" )
653 elseif( ANDROID_ABI STREQUAL "x86_64" )
656 set( ANDROID_NDK_ABI_NAME "x86_64" )
657 set( ANDROID_ARCH_NAME "x86_64" )
658 set( CMAKE_SYSTEM_PROCESSOR "x86_64" )
659 set( ANDROID_LLVM_TRIPLE "x86_64-none-linux-android" )
660 elseif( ANDROID_ABI STREQUAL "mips64" )
662 set( ANDROID_NDK_ABI_NAME "mips64" )
663 set( ANDROID_ARCH_NAME "mips64" )
664 set( ANDROID_LLVM_TRIPLE "mips64el-none-linux-android" )
665 set( CMAKE_SYSTEM_PROCESSOR "mips64" )
666 elseif( ANDROID_ABI STREQUAL "mips" )
668 set( ANDROID_NDK_ABI_NAME "mips" )
669 set( ANDROID_ARCH_NAME "mips" )
670 set( ANDROID_LLVM_TRIPLE "mipsel-none-linux-android" )
671 set( CMAKE_SYSTEM_PROCESSOR "mips" )
672 elseif( ANDROID_ABI STREQUAL "arm64-v8a" )
673 set( ARM64_V8A true )
674 set( ANDROID_NDK_ABI_NAME "arm64-v8a" )
675 set( ANDROID_ARCH_NAME "arm64" )
676 set( ANDROID_LLVM_TRIPLE "aarch64-none-linux-android" )
677 set( CMAKE_SYSTEM_PROCESSOR "aarch64" )
680 elseif( ANDROID_ABI STREQUAL "armeabi" )
682 set( ANDROID_NDK_ABI_NAME "armeabi" )
683 set( ANDROID_ARCH_NAME "arm" )
684 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" )
685 set( CMAKE_SYSTEM_PROCESSOR "armv5te" )
686 elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" )
687 set( ARMEABI_V6 true )
688 set( ANDROID_NDK_ABI_NAME "armeabi" )
689 set( ANDROID_ARCH_NAME "arm" )
690 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" )
691 set( CMAKE_SYSTEM_PROCESSOR "armv6" )
692 # need always fallback to older platform
694 elseif( ANDROID_ABI STREQUAL "armeabi-v7a")
695 set( ARMEABI_V7A true )
696 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
697 set( ANDROID_ARCH_NAME "arm" )
698 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" )
699 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
700 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" )
701 set( ARMEABI_V7A true )
702 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
703 set( ANDROID_ARCH_NAME "arm" )
704 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" )
705 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
707 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" )
708 set( ARMEABI_V7A true )
709 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" )
710 set( ANDROID_ARCH_NAME "arm" )
711 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" )
712 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
715 elseif( ANDROID_ABI STREQUAL "armeabi-v7a-hard with NEON" )
716 set( ARMEABI_V7A_HARD true )
717 set( ANDROID_NDK_ABI_NAME "armeabi-v7a-hard" )
718 set( ANDROID_ARCH_NAME "arm" )
719 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" )
720 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" )
724 message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." )
727 if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" )
729 # it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run...
730 file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" )
733 if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 )
734 __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD VALUES OFF )
735 set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE )
736 mark_as_advanced( ANDROID_FORCE_ARM_BUILD )
738 unset( ANDROID_FORCE_ARM_BUILD CACHE )
742 if( ANDROID_TOOLCHAIN_NAME )
743 list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx )
744 if( __toolchainIdx EQUAL -1 )
745 list( SORT __availableToolchains )
746 string( REPLACE ";" "\n * " toolchains_list "${__availableToolchains}" )
747 set( toolchains_list " * ${toolchains_list}")
748 message( FATAL_ERROR "Specified toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing in your NDK or broken. Please verify that your NDK is working or select another compiler toolchain.
749 To configure the toolchain set CMake variable ANDROID_TOOLCHAIN_NAME to one of the following values:\n${toolchains_list}\n" )
751 list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch )
752 if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME )
753 message( SEND_ERROR "Selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." )
756 set( __toolchainIdx -1 )
757 set( __applicableToolchains "" )
758 set( __toolchainMaxVersion "0.0.0" )
759 list( LENGTH __availableToolchains __availableToolchainsCount )
760 math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" )
761 foreach( __idx RANGE ${__availableToolchainsCount} )
762 list( GET __availableToolchainArchs ${__idx} __toolchainArch )
763 if( __toolchainArch STREQUAL ANDROID_ARCH_NAME )
764 list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion )
765 string( REPLACE "x" "99" __toolchainVersion "${__toolchainVersion}")
766 if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion )
767 set( __toolchainMaxVersion "${__toolchainVersion}" )
768 set( __toolchainIdx ${__idx} )
772 unset( __availableToolchainsCount )
773 unset( __toolchainMaxVersion )
774 unset( __toolchainVersion )
776 unset( __toolchainArch )
777 if( __toolchainIdx EQUAL -1 )
778 message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." )
780 list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME )
781 list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME )
782 list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION )
784 unset( __toolchainIdx )
785 unset( __availableToolchains )
786 unset( __availableToolchainMachines )
787 unset( __availableToolchainArchs )
788 unset( __availableToolchainCompilerVersions )
790 # choose native API level
791 __INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL )
792 string( REPLACE "android-" "" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" )
793 string( STRIP "${ANDROID_NATIVE_API_LEVEL}" ANDROID_NATIVE_API_LEVEL )
795 set( __real_api_level ${ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME}} )
796 foreach( __level ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
797 if( (__level LESS ANDROID_NATIVE_API_LEVEL OR __level STREQUAL ANDROID_NATIVE_API_LEVEL) AND NOT __level LESS __real_api_level )
798 set( __real_api_level ${__level} )
801 if( __real_api_level AND NOT ANDROID_NATIVE_API_LEVEL STREQUAL __real_api_level )
802 message( STATUS "Adjusting Android API level 'android-${ANDROID_NATIVE_API_LEVEL}' to 'android-${__real_api_level}'")
803 set( ANDROID_NATIVE_API_LEVEL ${__real_api_level} )
805 unset(__real_api_level)
807 list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx )
808 if( __levelIdx EQUAL -1 )
809 message( SEND_ERROR "Specified Android native API level 'android-${ANDROID_NATIVE_API_LEVEL}' is not supported by your NDK/toolchain." )
811 if( BUILD_WITH_ANDROID_NDK )
812 __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" )
813 if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL AND NOT __realApiLevel GREATER 9000 )
814 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." )
816 unset( __realApiLevel )
818 set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE )
819 set( CMAKE_ANDROID_API ${ANDROID_NATIVE_API_LEVEL} )
820 if( CMAKE_VERSION VERSION_GREATER "2.8" )
821 list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS )
822 set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} )
828 # remember target ABI
829 set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE )
830 if( CMAKE_VERSION VERSION_GREATER "2.8" )
831 list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} )
832 set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} )
836 # runtime choice (STL, rtti, exceptions)
837 if( NOT ANDROID_STL )
838 set( ANDROID_STL gnustl_static )
840 set( ANDROID_STL "${ANDROID_STL}" CACHE STRING "C++ runtime" )
841 set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and exceptions support based on C++ runtime" )
842 mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES )
844 if( BUILD_WITH_ANDROID_NDK )
845 if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$")
846 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\".
847 The possible values are:
848 none -> Do not configure the runtime.
849 system -> Use the default minimal system C++ runtime library.
850 system_re -> Same as system but with rtti and exceptions.
851 gabi++_static -> Use the GAbi++ runtime as a static library.
852 gabi++_shared -> Use the GAbi++ runtime as a shared library.
853 stlport_static -> Use the STLport runtime as a static library.
854 stlport_shared -> Use the STLport runtime as a shared library.
855 gnustl_static -> (default) Use the GNU STL as a static library.
856 gnustl_shared -> Use the GNU STL as a shared library.
859 elseif( BUILD_WITH_STANDALONE_TOOLCHAIN )
860 if( NOT "${ANDROID_STL}" MATCHES "^(none|gnustl_static|gnustl_shared)$")
861 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\".
862 The possible values are:
863 none -> Do not configure the runtime.
864 gnustl_static -> (default) Use the GNU STL as a static library.
865 gnustl_shared -> Use the GNU STL as a shared library.
870 unset( ANDROID_RTTI )
871 unset( ANDROID_EXCEPTIONS )
872 unset( ANDROID_STL_INCLUDE_DIRS )
876 if( NOT _CMAKE_IN_TRY_COMPILE AND ANDROID_NDK_RELEASE STREQUAL "r7b" AND ARMEABI_V7A AND NOT VFPV3 AND ANDROID_STL MATCHES "gnustl" )
877 message( WARNING "The GNU STL armeabi-v7a binaries from NDK r7b can crash non-NEON devices. The files provided with NDK r7b were not configured properly, resulting in crashes on Tegra2-based devices and others when trying to use certain floating-point functions (e.g., cosf, sinf, expf).
878 You are strongly recommended to switch to another NDK release.
882 if( NOT _CMAKE_IN_TRY_COMPILE AND X86 AND ANDROID_STL MATCHES "gnustl" AND ANDROID_NDK_RELEASE STREQUAL "r6" )
883 message( WARNING "The x86 system header file from NDK r6 has incorrect definition for ptrdiff_t. You are recommended to upgrade to a newer NDK release or manually patch the header:
884 See https://android.googlesource.com/platform/development.git f907f4f9d4e56ccc8093df6fee54454b8bcab6c2
885 diff --git a/ndk/platforms/android-9/arch-x86/include/machine/_types.h b/ndk/platforms/android-9/arch-x86/include/machine/_types.h
886 index 5e28c64..65892a1 100644
887 --- a/ndk/platforms/android-9/arch-x86/include/machine/_types.h
888 +++ b/ndk/platforms/android-9/arch-x86/include/machine/_types.h
889 @@ -51,7 +51,11 @@ typedef long int ssize_t;
893 -typedef long ptrdiff_t;
895 + typedef int ptrdiff_t;
897 + typedef long ptrdiff_t;
904 # setup paths and STL for standalone toolchain
905 if( BUILD_WITH_STANDALONE_TOOLCHAIN )
906 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" )
907 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" )
908 set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" )
910 if( NOT ANDROID_STL STREQUAL "none" )
911 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/include/c++/${ANDROID_COMPILER_VERSION}" )
912 if( NOT EXISTS "${ANDROID_STL_INCLUDE_DIRS}" )
913 # old location ( pre r8c )
914 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}" )
916 if( (ARMEABI_V7A OR ARMEABI_V7A_HARD) AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" )
917 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" )
918 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" )
919 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" )
921 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" )
923 # always search static GNU STL to get the location of libsupc++.a
924 if( (ARMEABI_V7A OR ARMEABI_V7A_HARD) AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" )
925 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" )
926 elseif( (ARMEABI_V7A OR ARMEABI_V7A_HARD) AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" )
927 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}" )
928 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libstdc++.a" )
929 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb" )
930 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libstdc++.a" )
931 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" )
934 set( __libsupcxx "${__libstl}/libsupc++.a" )
935 set( __libstl "${__libstl}/libstdc++.a" )
937 if( NOT EXISTS "${__libsupcxx}" )
938 message( FATAL_ERROR "The required libstdsupc++.a is missing in your standalone toolchain.
939 Usually it happens because of bug in make-standalone-toolchain.sh script from NDK r7, r7b and r7c.
940 You need to either upgrade to newer NDK or manually copy
941 $ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a
946 if( ANDROID_STL STREQUAL "gnustl_shared" )
947 if( (ARMEABI_V7A OR ARMEABI_V7A_HARD) AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" )
948 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" )
949 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" )
950 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" )
951 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" )
952 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" )
959 if( "${ANDROID_TOOLCHAIN_NAME}" STREQUAL "standalone-clang" )
960 set( ANDROID_COMPILER_IS_CLANG 1 )
961 execute_process( COMMAND "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/clang${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE ANDROID_CLANG_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE )
962 string( REGEX MATCH "[0-9]+[.][0-9]+" ANDROID_CLANG_VERSION "${ANDROID_CLANG_VERSION}")
963 elseif( "${ANDROID_TOOLCHAIN_NAME}" MATCHES "-clang3[.][0-9]?$" )
964 string( REGEX MATCH "3[.][0-9]$" ANDROID_CLANG_VERSION "${ANDROID_TOOLCHAIN_NAME}")
965 string( REGEX REPLACE "-clang${ANDROID_CLANG_VERSION}$" "-${ANDROID_COMPILER_VERSION}" ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" )
966 if( NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}/bin/clang${TOOL_OS_SUFFIX}" )
967 message( FATAL_ERROR "Could not find the Clang compiler driver" )
969 set( ANDROID_COMPILER_IS_CLANG 1 )
970 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" )
972 set( ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" )
973 unset( ANDROID_COMPILER_IS_CLANG CACHE )
976 string( REPLACE "." "" _clang_name "clang${ANDROID_CLANG_VERSION}" )
977 if( NOT EXISTS "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" )
978 set( _clang_name "clang" )
982 # setup paths and STL for NDK
983 if( BUILD_WITH_ANDROID_NDK )
984 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" )
985 set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" )
987 if( ANDROID_STL STREQUAL "none" )
989 elseif( ANDROID_STL STREQUAL "system" )
990 set( ANDROID_RTTI OFF )
991 set( ANDROID_EXCEPTIONS OFF )
992 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" )
993 elseif( ANDROID_STL STREQUAL "system_re" )
994 set( ANDROID_RTTI ON )
995 set( ANDROID_EXCEPTIONS ON )
996 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" )
997 elseif( ANDROID_STL MATCHES "gabi" )
998 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7
999 message( FATAL_ERROR "gabi++ is not available in your NDK. You have to upgrade to NDK r7 or newer to use gabi++.")
1001 set( ANDROID_RTTI ON )
1002 set( ANDROID_EXCEPTIONS OFF )
1003 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/gabi++/include" )
1004 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gabi++/libs/${ANDROID_NDK_ABI_NAME}/libgabi++_static.a" )
1005 elseif( ANDROID_STL MATCHES "stlport" )
1006 if( NOT ANDROID_NDK_RELEASE_NUM LESS 8004 ) # before r8d
1007 set( ANDROID_EXCEPTIONS ON )
1009 set( ANDROID_EXCEPTIONS OFF )
1011 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7
1012 set( ANDROID_RTTI OFF )
1014 set( ANDROID_RTTI ON )
1016 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" )
1017 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" )
1018 elseif( ANDROID_STL MATCHES "gnustl" )
1019 set( ANDROID_EXCEPTIONS ON )
1020 set( ANDROID_RTTI ON )
1021 if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" )
1022 if( ARMEABI_V7A AND ANDROID_COMPILER_VERSION VERSION_EQUAL "4.7" AND ANDROID_NDK_RELEASE STREQUAL "r8d" )
1023 # gnustl binary for 4.7 compiler is buggy :(
1024 # TODO: look for right fix
1025 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/4.6" )
1027 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" )
1030 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" )
1032 set( ANDROID_STL_INCLUDE_DIRS "${__libstl}/include" "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/include" "${__libstl}/include/backward" )
1033 if( EXISTS "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" )
1034 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" )
1036 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" )
1039 message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" )
1041 # find libsupc++.a - rtti & exceptions
1042 if( ANDROID_STL STREQUAL "system_re" OR ANDROID_STL MATCHES "gnustl" )
1043 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r8b or newer
1044 if( NOT EXISTS "${__libsupcxx}" )
1045 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r7-r8
1047 if( NOT EXISTS "${__libsupcxx}" ) # before r7
1049 if( ANDROID_FORCE_ARM_BUILD )
1050 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" )
1052 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" )
1054 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD )
1055 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" )
1057 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" )
1060 if( NOT EXISTS "${__libsupcxx}")
1061 message( ERROR "Could not find libsupc++.a for a chosen platform. Either your NDK is not supported or is broken.")
1067 # case of shared STL linkage
1068 if( ANDROID_STL MATCHES "shared" AND DEFINED __libstl )
1069 string( REPLACE "_static.a" "_shared.so" __libstl "${__libstl}" )
1070 # TODO: check if .so file exists before the renaming
1075 __INIT_VARIABLE( _ndk_ccache NDK_CCACHE ENV_NDK_CCACHE )
1077 if( DEFINED NDK_CCACHE AND NOT EXISTS NDK_CCACHE )
1078 unset( NDK_CCACHE CACHE )
1080 find_program( NDK_CCACHE "${_ndk_ccache}" DOC "The path to ccache binary")
1082 unset( NDK_CCACHE CACHE )
1084 unset( _ndk_ccache )
1087 # setup the cross-compiler
1088 if( NOT CMAKE_C_COMPILER )
1089 if( NDK_CCACHE AND NOT ANDROID_SYSROOT MATCHES "[ ;\"]" )
1090 set( CMAKE_C_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C compiler" )
1091 set( CMAKE_CXX_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C++ compiler" )
1092 if( ANDROID_COMPILER_IS_CLANG )
1093 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler")
1094 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler")
1096 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler")
1097 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler")
1100 if( ANDROID_COMPILER_IS_CLANG )
1101 set( CMAKE_C_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler")
1102 set( CMAKE_CXX_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler")
1104 set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler" )
1105 set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler" )
1108 set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "assembler" )
1109 set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" )
1110 if( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" )
1111 # Use gcc-ar if we have it for better LTO support.
1112 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" )
1114 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" )
1116 set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" )
1117 set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" )
1118 set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" )
1119 set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" )
1120 set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" )
1123 set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" )
1124 if( CMAKE_VERSION VERSION_LESS 2.8.5 )
1125 set( CMAKE_ASM_COMPILER_ARG1 "-c" )
1128 find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool )
1129 if( NOT CMAKE_INSTALL_NAME_TOOL )
1130 message( FATAL_ERROR "Could not find install_name_tool, please check your installation." )
1132 mark_as_advanced( CMAKE_INSTALL_NAME_TOOL )
1135 # Force set compilers because standard identification works badly for us
1136 include( CMakeForceCompiler )
1137 CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU )
1138 if( ANDROID_COMPILER_IS_CLANG )
1139 set( CMAKE_C_COMPILER_ID Clang )
1141 set( CMAKE_C_PLATFORM_ID Linux )
1142 if( X86_64 OR MIPS64 OR ARM64_V8A )
1143 set( CMAKE_C_SIZEOF_DATA_PTR 8 )
1145 set( CMAKE_C_SIZEOF_DATA_PTR 4 )
1147 set( CMAKE_C_HAS_ISYSROOT 1 )
1148 set( CMAKE_C_COMPILER_ABI ELF )
1149 CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU )
1150 if( ANDROID_COMPILER_IS_CLANG )
1151 set( CMAKE_CXX_COMPILER_ID Clang)
1153 set( CMAKE_CXX_PLATFORM_ID Linux )
1154 set( CMAKE_CXX_SIZEOF_DATA_PTR ${CMAKE_C_SIZEOF_DATA_PTR} )
1155 set( CMAKE_CXX_HAS_ISYSROOT 1 )
1156 set( CMAKE_CXX_COMPILER_ABI ELF )
1157 set( CMAKE_CXX_SOURCE_FILE_EXTENSIONS cc cp cxx cpp CPP c++ C )
1158 # force ASM compiler (required for CMake < 2.8.5)
1159 set( CMAKE_ASM_COMPILER_ID_RUN TRUE )
1160 set( CMAKE_ASM_COMPILER_ID GNU )
1161 set( CMAKE_ASM_COMPILER_WORKS TRUE )
1162 set( CMAKE_ASM_COMPILER_FORCED TRUE )
1163 set( CMAKE_COMPILER_IS_GNUASM 1)
1164 set( CMAKE_ASM_SOURCE_FILE_EXTENSIONS s S asm )
1166 foreach( lang C CXX ASM )
1167 if( ANDROID_COMPILER_IS_CLANG )
1168 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_CLANG_VERSION} )
1170 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_COMPILER_VERSION} )
1174 # flags and definitions
1175 remove_definitions( -DANDROID )
1176 add_definitions( -DANDROID )
1178 if( ANDROID_SYSROOT MATCHES "[ ;\"]" )
1179 if( CMAKE_HOST_WIN32 )
1180 # try to convert path to 8.3 form
1181 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "@echo %~s1" )
1182 execute_process( COMMAND "$ENV{ComSpec}" /c "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "${ANDROID_SYSROOT}"
1183 OUTPUT_VARIABLE __path OUTPUT_STRIP_TRAILING_WHITESPACE
1184 RESULT_VARIABLE __result ERROR_QUIET )
1185 if( __result EQUAL 0 )
1186 file( TO_CMAKE_PATH "${__path}" ANDROID_SYSROOT )
1187 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
1189 set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" )
1192 set( ANDROID_CXX_FLAGS "'--sysroot=${ANDROID_SYSROOT}'" )
1194 if( NOT _CMAKE_IN_TRY_COMPILE )
1195 # quotes can break try_compile and compiler identification
1196 message(WARNING "Path to your Android NDK (or toolchain) has non-alphanumeric symbols.\nThe build might be broken.\n")
1199 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" )
1204 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" )
1205 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" )
1206 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" )
1207 if( NOT ANDROID_COMPILER_IS_CLANG )
1208 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" )
1210 elseif( ARMEABI OR ARMEABI_V7A OR ARMEABI_V7A_HARD)
1211 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" )
1212 if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 )
1213 set( ANDROID_CXX_FLAGS_RELEASE "-mthumb -fomit-frame-pointer -fno-strict-aliasing" )
1214 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" )
1215 if( NOT ANDROID_COMPILER_IS_CLANG )
1216 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -finline-limit=64" )
1219 # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI
1220 set( ANDROID_CXX_FLAGS_RELEASE "-marm -fomit-frame-pointer -fstrict-aliasing" )
1221 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" )
1222 if( NOT ANDROID_COMPILER_IS_CLANG )
1223 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" )
1226 elseif( X86 OR X86_64 )
1227 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" )
1228 if( NOT ANDROID_COMPILER_IS_CLANG )
1229 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" )
1231 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" )
1232 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" )
1233 elseif( MIPS OR MIPS64 )
1234 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-strict-aliasing -finline-functions -funwind-tables -fmessage-length=0" )
1235 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer" )
1236 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer" )
1237 if( NOT ANDROID_COMPILER_IS_CLANG )
1238 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" )
1239 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" )
1242 set( ANDROID_CXX_FLAGS_RELEASE "" )
1243 set( ANDROID_CXX_FLAGS_DEBUG "" )
1246 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) # good/necessary when porting desktop libraries
1248 if( NOT X86 AND NOT ANDROID_COMPILER_IS_CLANG )
1249 set( ANDROID_CXX_FLAGS "-Wno-psabi ${ANDROID_CXX_FLAGS}" )
1252 if( NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.6" )
1253 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -no-canonical-prefixes" ) # see https://android-review.googlesource.com/#/c/47564/
1256 # ABI-specific flags
1257 if( ARMEABI_V7A_HARD )
1258 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=hard -mhard-float -D_NDK_MATH_NO_SOFTFP=1" )
1260 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" )
1262 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" )
1264 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" )
1266 elseif( ARMEABI_V7A )
1267 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" )
1269 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" )
1271 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" )
1273 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" )
1276 elseif( ARMEABI_V6 )
1277 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) # vfp == vfpv2
1279 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" )
1282 if( ANDROID_STL MATCHES "gnustl" AND (EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}") )
1283 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1284 set( CMAKE_CXX_CREATE_SHARED_MODULE "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1285 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" )
1287 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1288 set( CMAKE_CXX_CREATE_SHARED_MODULE "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1289 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" )
1293 if( EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}" )
1294 if( EXISTS "${__libstl}" )
1295 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libstl}\"" )
1296 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libstl}\"" )
1297 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libstl}\"" )
1299 if( EXISTS "${__libsupcxx}" )
1300 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" )
1301 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" )
1302 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libsupcxx}\"" )
1304 set( CMAKE_C_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1305 set( CMAKE_C_CREATE_SHARED_MODULE "<CMAKE_C_COMPILER> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> <CMAKE_SHARED_LIBRARY_SONAME_C_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>" )
1306 set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" )
1307 set( CMAKE_C_CREATE_SHARED_LIBRARY "${CMAKE_C_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" )
1308 set( CMAKE_C_CREATE_SHARED_MODULE "${CMAKE_C_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" )
1309 set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} \"${__libsupcxx}\"" )
1311 if( ANDROID_STL MATCHES "gnustl" )
1312 if( NOT EXISTS "${ANDROID_LIBM_PATH}" )
1313 set( ANDROID_LIBM_PATH -lm )
1315 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} ${ANDROID_LIBM_PATH}" )
1316 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} ${ANDROID_LIBM_PATH}" )
1317 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIBM_PATH}" )
1321 # variables controlling optional build flags
1322 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7
1323 # libGLESv2.so in NDK's prior to r7 refers to missing external symbols.
1324 # So this flag option is required for all projects using OpenGL from native.
1325 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON )
1327 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF )
1329 __INIT_VARIABLE( ANDROID_NO_UNDEFINED VALUES ON )
1330 __INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON )
1331 __INIT_VARIABLE( ANDROID_GOLD_LINKER VALUES ON )
1332 __INIT_VARIABLE( ANDROID_NOEXECSTACK VALUES ON )
1333 __INIT_VARIABLE( ANDROID_RELRO VALUES ON )
1335 set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" )
1336 set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" )
1337 set( ANDROID_FUNCTION_LEVEL_LINKING ${ANDROID_FUNCTION_LEVEL_LINKING} CACHE BOOL "Put each function in separate section and enable garbage collection of unused input sections at link time" )
1338 set( ANDROID_GOLD_LINKER ${ANDROID_GOLD_LINKER} CACHE BOOL "Enables gold linker" )
1339 set( ANDROID_NOEXECSTACK ${ANDROID_NOEXECSTACK} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" )
1340 set( ANDROID_RELRO ${ANDROID_RELRO} CACHE BOOL "Enables RELRO - a memory corruption mitigation technique" )
1341 mark_as_advanced( ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO )
1344 set( ANDROID_LINKER_FLAGS "" )
1347 # this is *required* to use the following linker flags that routes around
1348 # a CPU bug in some Cortex-A8 implementations:
1349 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--fix-cortex-a8" )
1352 if( ARMEABI_V7A_HARD )
1353 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-warn-mismatch -lm_hard" )
1356 if( ANDROID_NO_UNDEFINED )
1358 # there is some sysroot-related problem in mips linker...
1359 if( NOT ANDROID_SYSROOT MATCHES "[ ;\"]" )
1360 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined -Wl,-rpath-link,${ANDROID_SYSROOT}/usr/lib" )
1363 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined" )
1367 if( ANDROID_SO_UNDEFINED )
1368 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" )
1371 if( ANDROID_FUNCTION_LEVEL_LINKING )
1372 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" )
1373 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" )
1376 if( ANDROID_COMPILER_VERSION VERSION_EQUAL "4.6" )
1377 if( ANDROID_GOLD_LINKER AND (CMAKE_HOST_UNIX OR ANDROID_NDK_RELEASE_NUM GREATER 8002) AND (ARMEABI OR ARMEABI_V7A OR ARMEABI_V7A_HARD OR X86) )
1378 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold" )
1379 elseif( ANDROID_NDK_RELEASE_NUM GREATER 8002 ) # after r8b
1380 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=bfd" )
1381 elseif( ANDROID_NDK_RELEASE STREQUAL "r8b" AND ARMEABI AND NOT _CMAKE_IN_TRY_COMPILE )
1382 message( WARNING "The default bfd linker from arm GCC 4.6 toolchain can fail with 'unresolvable R_ARM_THM_CALL relocation' error message. See https://code.google.com/p/android/issues/detail?id=35342
1383 On Linux and OS X host platform you can workaround this problem using gold linker (default).
1384 Rerun cmake with -DANDROID_GOLD_LINKER=ON option in case of problems.
1387 endif() # version 4.6
1389 if( ANDROID_NOEXECSTACK )
1390 if( ANDROID_COMPILER_IS_CLANG )
1391 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Xclang -mnoexecstack" )
1393 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Wa,--noexecstack" )
1395 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,noexecstack" )
1399 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now" )
1402 if( ANDROID_COMPILER_IS_CLANG )
1403 set( ANDROID_CXX_FLAGS "-target ${ANDROID_LLVM_TRIPLE} -Qunused-arguments ${ANDROID_CXX_FLAGS}" )
1404 if( BUILD_WITH_ANDROID_NDK )
1405 set( ANDROID_CXX_FLAGS "-gcc-toolchain ${ANDROID_TOOLCHAIN_ROOT} ${ANDROID_CXX_FLAGS}" )
1410 set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" )
1411 set( CMAKE_C_FLAGS "" CACHE STRING "c flags" )
1412 set( CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c++ Release flags" )
1413 set( CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c Release flags" )
1414 set( CMAKE_CXX_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c++ Debug flags" )
1415 set( CMAKE_C_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c Debug flags" )
1416 set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags" )
1417 set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags" )
1418 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags" )
1420 # put flags to cache (for debug purpose only)
1421 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Android specific c/c++ flags" )
1422 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE}" CACHE INTERNAL "Android specific c/c++ Release flags" )
1423 set( ANDROID_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG}" CACHE INTERNAL "Android specific c/c++ Debug flags" )
1424 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Android specific c/c++ linker flags" )
1427 set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" )
1428 set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" )
1429 set( CMAKE_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}" )
1430 set( CMAKE_C_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}" )
1431 set( CMAKE_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}" )
1432 set( CMAKE_C_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}" )
1433 set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" )
1434 set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" )
1435 set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" )
1437 if( MIPS AND BUILD_WITH_ANDROID_NDK AND ANDROID_NDK_RELEASE STREQUAL "r8" )
1438 set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_SHARED_LINKER_FLAGS}" )
1439 set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_MODULE_LINKER_FLAGS}" )
1440 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.x ${CMAKE_EXE_LINKER_FLAGS}" )
1444 if( NOT (ANDROID_NATIVE_API_LEVEL LESS 16) AND (NOT DEFINED ANDROID_APP_PIE OR ANDROID_APP_PIE) AND (CMAKE_VERSION VERSION_GREATER 2.8.8) )
1445 set( CMAKE_POSITION_INDEPENDENT_CODE TRUE )
1446 set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE -pie")
1448 set( CMAKE_POSITION_INDEPENDENT_CODE FALSE )
1449 set( CMAKE_CXX_FLAGS "-fpic ${CMAKE_CXX_FLAGS}" )
1450 set( CMAKE_C_FLAGS "-fpic ${CMAKE_C_FLAGS}" )
1454 if( DEFINED ANDROID_RTTI AND ANDROID_STL_FORCE_FEATURES )
1456 set( CMAKE_CXX_FLAGS "-frtti ${CMAKE_CXX_FLAGS}" )
1458 set( CMAKE_CXX_FLAGS "-fno-rtti ${CMAKE_CXX_FLAGS}" )
1462 # configure exceptios
1463 if( DEFINED ANDROID_EXCEPTIONS AND ANDROID_STL_FORCE_FEATURES )
1464 if( ANDROID_EXCEPTIONS )
1465 set( CMAKE_CXX_FLAGS "-fexceptions ${CMAKE_CXX_FLAGS}" )
1466 set( CMAKE_C_FLAGS "-fexceptions ${CMAKE_C_FLAGS}" )
1468 set( CMAKE_CXX_FLAGS "-fno-exceptions ${CMAKE_CXX_FLAGS}" )
1469 set( CMAKE_C_FLAGS "-fno-exceptions ${CMAKE_C_FLAGS}" )
1473 # global includes and link directories
1474 include_directories( SYSTEM "${ANDROID_SYSROOT}/usr/include" ${ANDROID_STL_INCLUDE_DIRS} )
1475 get_filename_component(__android_install_path "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ABSOLUTE) # avoid CMP0015 policy warning
1476 link_directories( "${__android_install_path}" )
1478 # detect if need link crtbegin_so.o explicitly
1479 if( NOT DEFINED ANDROID_EXPLICIT_CRT_LINK )
1480 set( __cmd "${CMAKE_CXX_CREATE_SHARED_LIBRARY}" )
1481 string( REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}" __cmd "${__cmd}" )
1482 string( REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" __cmd "${__cmd}" )
1483 string( REPLACE "<CMAKE_SHARED_LIBRARY_CXX_FLAGS>" "${CMAKE_CXX_FLAGS}" __cmd "${__cmd}" )
1484 string( REPLACE "<LANGUAGE_COMPILE_FLAGS>" "" __cmd "${__cmd}" )
1485 string( REPLACE "<LINK_FLAGS>" "${CMAKE_SHARED_LINKER_FLAGS}" __cmd "${__cmd}" )
1486 string( REPLACE "<CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>" "-shared" __cmd "${__cmd}" )
1487 string( REPLACE "<CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG>" "" __cmd "${__cmd}" )
1488 string( REPLACE "<TARGET_SONAME>" "" __cmd "${__cmd}" )
1489 string( REPLACE "<TARGET>" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain_crtlink_test.so" __cmd "${__cmd}" )
1490 string( REPLACE "<OBJECTS>" "\"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" __cmd "${__cmd}" )
1491 string( REPLACE "<LINK_LIBRARIES>" "" __cmd "${__cmd}" )
1492 separate_arguments( __cmd )
1493 foreach( __var ANDROID_NDK ANDROID_NDK_TOOLCHAINS_PATH ANDROID_STANDALONE_TOOLCHAIN )
1495 set( __tmp "${${__var}}" )
1496 separate_arguments( __tmp )
1497 string( REPLACE "${__tmp}" "${${__var}}" __cmd "${__cmd}")
1500 string( REPLACE "'" "" __cmd "${__cmd}" )
1501 string( REPLACE "\"" "" __cmd "${__cmd}" )
1502 execute_process( COMMAND ${__cmd} RESULT_VARIABLE __cmd_result OUTPUT_QUIET ERROR_QUIET )
1503 if( __cmd_result EQUAL 0 )
1504 set( ANDROID_EXPLICIT_CRT_LINK ON )
1506 set( ANDROID_EXPLICIT_CRT_LINK OFF )
1510 if( ANDROID_EXPLICIT_CRT_LINK )
1511 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" )
1512 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" )
1515 # setup output directories
1516 set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" )
1518 if( DEFINED LIBRARY_OUTPUT_PATH_ROOT
1519 OR EXISTS "${CMAKE_SOURCE_DIR}/AndroidManifest.xml"
1520 OR (EXISTS "${CMAKE_SOURCE_DIR}/../AndroidManifest.xml" AND EXISTS "${CMAKE_SOURCE_DIR}/../jni/") )
1521 set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "Root for binaries output, set this to change where Android libs are installed to" )
1522 if( NOT _CMAKE_IN_TRY_COMPILE )
1523 if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" )
1524 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" )
1526 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" )
1528 set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for Android libs" )
1532 # copy shaed stl library to build directory
1533 if( NOT _CMAKE_IN_TRY_COMPILE AND __libstl MATCHES "[.]so$" AND DEFINED LIBRARY_OUTPUT_PATH )
1534 get_filename_component( __libstlname "${__libstl}" NAME )
1535 execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${__libstl}" "${LIBRARY_OUTPUT_PATH}/${__libstlname}" RESULT_VARIABLE __fileCopyProcess )
1536 if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${LIBRARY_OUTPUT_PATH}/${__libstlname}")
1537 message( SEND_ERROR "Failed copying of ${__libstl} to the ${LIBRARY_OUTPUT_PATH}/${__libstlname}" )
1539 unset( __fileCopyProcess )
1540 unset( __libstlname )
1544 # set these global flags for cmake client scripts to change behavior
1546 set( BUILD_ANDROID True )
1548 # where is the target environment
1549 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" )
1551 # only search for libraries and includes in the ndk toolchain
1552 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1553 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1554 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1557 # macro to find packages on the host OS
1558 macro( find_host_package )
1559 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1560 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1561 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1562 if( CMAKE_HOST_WIN32 )
1565 elseif( CMAKE_HOST_APPLE )
1569 find_package( ${ARGN} )
1573 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1574 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1575 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1579 # macro to find programs on the host OS
1580 macro( find_host_program )
1581 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER )
1582 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER )
1583 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER )
1584 if( CMAKE_HOST_WIN32 )
1587 elseif( CMAKE_HOST_APPLE )
1591 find_program( ${ARGN} )
1595 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY )
1596 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY )
1597 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY )
1601 # export toolchain settings for the try_compile() command
1602 if( NOT _CMAKE_IN_TRY_COMPILE )
1603 set( __toolchain_config "")
1604 foreach( __var NDK_CCACHE LIBRARY_OUTPUT_PATH_ROOT ANDROID_FORBID_SYGWIN
1605 ANDROID_NDK_HOST_X64
1608 ANDROID_STANDALONE_TOOLCHAIN
1609 ANDROID_TOOLCHAIN_NAME
1611 ANDROID_NATIVE_API_LEVEL
1613 ANDROID_STL_FORCE_FEATURES
1614 ANDROID_FORCE_ARM_BUILD
1615 ANDROID_NO_UNDEFINED
1616 ANDROID_SO_UNDEFINED
1617 ANDROID_FUNCTION_LEVEL_LINKING
1622 ANDROID_EXPLICIT_CRT_LINK
1625 if( DEFINED ${__var} )
1626 if( ${__var} MATCHES " ")
1627 set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" )
1629 set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" )
1633 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" )
1634 unset( __toolchain_config )
1638 # force cmake to produce / instead of \ in build commands for Ninja generator
1639 if( CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_HOST_WIN32 )
1640 # it is a bad hack after all
1641 # CMake generates Ninja makefiles with UNIX paths only if it thinks that we are going to build with MinGW
1642 set( CMAKE_COMPILER_IS_MINGW TRUE ) # tell CMake that we are MinGW
1643 set( CMAKE_CROSSCOMPILING TRUE ) # stop recursion
1644 enable_language( C )
1645 enable_language( CXX )
1646 # unset( CMAKE_COMPILER_IS_MINGW ) # can't unset because CMake does not convert back-slashes in response files without it
1651 # Variables controlling behavior or set by cmake toolchain:
1652 # ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a-hard with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86", "mips", "arm64-v8a", "x86_64", "mips64"
1653 # ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14,15,16,17,18,19,21 (depends on NDK version)
1654 # ANDROID_STL : gnustl_static/gnustl_shared/stlport_static/stlport_shared/gabi++_static/gabi++_shared/system_re/system/none
1655 # ANDROID_FORBID_SYGWIN : ON/OFF
1656 # ANDROID_NO_UNDEFINED : ON/OFF
1657 # ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version)
1658 # ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF
1659 # ANDROID_GOLD_LINKER : ON/OFF
1660 # ANDROID_NOEXECSTACK : ON/OFF
1661 # ANDROID_RELRO : ON/OFF
1662 # ANDROID_FORCE_ARM_BUILD : ON/OFF
1663 # ANDROID_STL_FORCE_FEATURES : ON/OFF
1664 # ANDROID_LIBM_PATH : path to libm.so (set to something like $(TOP)/out/target/product/<product_name>/obj/lib/libm.so) to workaround unresolved `sincos`
1665 # Can be set only at the first run:
1666 # ANDROID_NDK : path to your NDK install
1667 # NDK_CCACHE : path to your ccache executable
1668 # ANDROID_TOOLCHAIN_NAME : the NDK name of compiler toolchain
1669 # ANDROID_NDK_HOST_X64 : try to use x86_64 toolchain (default for x64 host systems)
1670 # ANDROID_NDK_LAYOUT : the inner NDK structure (RELEASE, LINARO, ANDROID)
1671 # LIBRARY_OUTPUT_PATH_ROOT : <any valid path>
1672 # ANDROID_STANDALONE_TOOLCHAIN
1674 # Primary read-only variables:
1675 # ANDROID : always TRUE
1676 # ARMEABI : TRUE for arm v6 and older devices
1677 # ARMEABI_V6 : TRUE for arm v6
1678 # ARMEABI_V7A : TRUE for arm v7a
1679 # ARMEABI_V7A_HARD : TRUE for arm v7a with hardfp
1680 # ARM64_V8A : TRUE for arm64-v8a
1681 # NEON : TRUE if NEON unit is enabled
1682 # VFPV3 : TRUE if VFP version 3 is enabled
1683 # X86 : TRUE if configured for x86
1684 # X86_64 : TRUE if configured for x86_64
1685 # MIPS : TRUE if configured for mips
1686 # MIPS64 : TRUE if configured for mips64
1687 # BUILD_WITH_ANDROID_NDK : TRUE if NDK is used
1688 # BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used
1689 # ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform
1690 # ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a", "armeabi-v7a-hard", "x86", "mips", "arm64-v8a", "x86_64", "mips64" depending on ANDROID_ABI
1691 # ANDROID_NDK_RELEASE : from r5 to r10d; set only for NDK
1692 # ANDROID_NDK_RELEASE_NUM : numeric ANDROID_NDK_RELEASE version (1000*major+minor)
1693 # ANDROID_ARCH_NAME : "arm", "x86", "mips", "arm64", "x86_64", "mips64" depending on ANDROID_ABI
1694 # ANDROID_SYSROOT : path to the compiler sysroot
1695 # TOOL_OS_SUFFIX : "" or ".exe" depending on host platform
1696 # ANDROID_COMPILER_IS_CLANG : TRUE if clang compiler is used
1698 # Secondary (less stable) read-only variables:
1699 # ANDROID_COMPILER_VERSION : GCC version used (not Clang version)
1700 # ANDROID_CLANG_VERSION : version of clang compiler if clang is used
1701 # ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform
1702 # ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI
1703 # ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux"
1704 # ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK)
1705 # ANDROID_CLANG_TOOLCHAIN_ROOT : path to clang tools
1706 # ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK
1707 # ANDROID_STL_INCLUDE_DIRS : stl include paths
1708 # ANDROID_RTTI : if rtti is enabled by the runtime
1709 # ANDROID_EXCEPTIONS : if exceptions are enabled by the runtime
1710 # ANDROID_GCC_TOOLCHAIN_NAME : read-only, differs from ANDROID_TOOLCHAIN_NAME only if clang is used
1713 # ANDROID_DEFAULT_NDK_API_LEVEL
1714 # ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH}
1715 # ANDROID_NDK_SEARCH_PATHS
1716 # ANDROID_SUPPORTED_ABIS_${ARCH}
1717 # ANDROID_SUPPORTED_NDK_VERSIONS