1 # Copyright (c) 2010-2011, Ethan Rublee 2 # Copyright (c) 2011-2014, Andrey Kamaev 3 # All rights reserved. 4 # 5 # Redistribution and use in source and binary forms, with or without 6 # modification, are permitted provided that the following conditions are met: 7 # 8 # 1. Redistributions of source code must retain the above copyright notice, 9 # this list of conditions and the following disclaimer. 10 # 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. 14 # 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. 18 # 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. 30 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 35 # 36 # Usage Linux: 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 .. 40 # $ make -j8 41 # 42 # Usage Windows: 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 47 # 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 . 54 # 55 # 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. 59 # 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. 63 # 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 with NEON" - same as armeabi-v7a, but 69 # sets NEON as floating-point unit 70 # "armeabi-v7a with VFPV3" - same as armeabi-v7a, but 71 # sets VFPV3 as floating-point unit (has 32 registers instead of 16) 72 # "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP 73 # "x86" - IA-32 instruction set 74 # "mips" - MIPS32 instruction set 75 # 76 # 64-bit ABIs for NDK r10 and newer: 77 # "arm64-v8a" - ARMv8 AArch64 instruction set 78 # "x86_64" - Intel64 instruction set (r1) 79 # "mips64" - MIPS64 instruction set (r6) 80 # 81 # ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for. 82 # Option is read-only when standalone toolchain is used. 83 # Note: building for "android-L" requires explicit configuration. 84 # 85 # ANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 - the name of compiler 86 # toolchain to be used. The list of possible values depends on the NDK 87 # version. For NDK r10c the possible values are: 88 # 89 # * aarch64-linux-android-4.9 90 # * aarch64-linux-android-clang3.4 91 # * aarch64-linux-android-clang3.5 92 # * arm-linux-androideabi-4.6 93 # * arm-linux-androideabi-4.8 94 # * arm-linux-androideabi-4.9 (default) 95 # * arm-linux-androideabi-clang3.4 96 # * arm-linux-androideabi-clang3.5 97 # * mips64el-linux-android-4.9 98 # * mips64el-linux-android-clang3.4 99 # * mips64el-linux-android-clang3.5 100 # * mipsel-linux-android-4.6 101 # * mipsel-linux-android-4.8 102 # * mipsel-linux-android-4.9 103 # * mipsel-linux-android-clang3.4 104 # * mipsel-linux-android-clang3.5 105 # * x86-4.6 106 # * x86-4.8 107 # * x86-4.9 108 # * x86-clang3.4 109 # * x86-clang3.5 110 # * x86_64-4.9 111 # * x86_64-clang3.4 112 # * x86_64-clang3.5 113 # 114 # ANDROID_FORCE_ARM_BUILD=OFF - set ON to generate 32-bit ARM instructions 115 # instead of Thumb. Is not available for "armeabi-v6 with VFP" 116 # (is forced to be ON) ABI. 117 # 118 # ANDROID_NO_UNDEFINED=ON - set ON to show all undefined symbols as linker 119 # errors even if they are not used. 120 # 121 # ANDROID_SO_UNDEFINED=OFF - set ON to allow undefined symbols in shared 122 # libraries. Automatically turned for NDK r5x and r6x due to GLESv2 123 # problems. 124 # 125 # ANDROID_STL=gnustl_static - specify the runtime to use. 126 # 127 # Possible values are: 128 # none -> Do not configure the runtime. 129 # system -> Use the default minimal system C++ runtime library. 130 # Implies -fno-rtti -fno-exceptions. 131 # Is not available for standalone toolchain. 132 # system_re -> Use the default minimal system C++ runtime library. 133 # Implies -frtti -fexceptions. 134 # Is not available for standalone toolchain. 135 # gabi++_static -> Use the GAbi++ runtime as a static library. 136 # Implies -frtti -fno-exceptions. 137 # Available for NDK r7 and newer. 138 # Is not available for standalone toolchain. 139 # gabi++_shared -> Use the GAbi++ runtime as a shared library. 140 # Implies -frtti -fno-exceptions. 141 # Available for NDK r7 and newer. 142 # Is not available for standalone toolchain. 143 # stlport_static -> Use the STLport runtime as a static library. 144 # Implies -fno-rtti -fno-exceptions for NDK before r7. 145 # Implies -frtti -fno-exceptions for NDK r7 and newer. 146 # Is not available for standalone toolchain. 147 # stlport_shared -> Use the STLport runtime as a shared library. 148 # Implies -fno-rtti -fno-exceptions for NDK before r7. 149 # Implies -frtti -fno-exceptions for NDK r7 and newer. 150 # Is not available for standalone toolchain. 151 # gnustl_static -> Use the GNU STL as a static library. 152 # Implies -frtti -fexceptions. 153 # gnustl_shared -> Use the GNU STL as a shared library. 154 # Implies -frtti -fno-exceptions. 155 # Available for NDK r7b and newer. 156 # Silently degrades to gnustl_static if not available. 157 # 158 # ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on 159 # chosen runtime. If disabled, then the user is responsible for settings 160 # these options. 161 # 162 # What?: 163 # android-cmake toolchain searches for NDK/toolchain in the following order: 164 # ANDROID_NDK - cmake parameter 165 # ANDROID_NDK - environment variable 166 # ANDROID_STANDALONE_TOOLCHAIN - cmake parameter 167 # ANDROID_STANDALONE_TOOLCHAIN - environment variable 168 # ANDROID_NDK - default locations 169 # ANDROID_STANDALONE_TOOLCHAIN - default locations 170 # 171 # Make sure to do the following in your scripts: 172 # SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" ) 173 # SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" ) 174 # The flags will be prepopulated with critical flags, so don't loose them. 175 # Also be aware that toolchain also sets configuration-specific compiler 176 # flags and linker flags. 177 # 178 # ANDROID and BUILD_ANDROID will be set to true, you may test any of these 179 # variables to make necessary Android-specific configuration changes. 180 # 181 # Also ARMEABI or ARMEABI_V7A or X86 or MIPS or ARM64_V8A or X86_64 or MIPS64 182 # will be set true, mutually exclusive. NEON option will be set true 183 # if VFP is set to NEON. 184 # 185 # ------------------------------------------------------------------------------ 186 187 cmake_minimum_required( VERSION 2.6.3 ) 188 189 if( DEFINED CMAKE_CROSSCOMPILING ) 190 # subsequent toolchain loading is not really needed 191 return() 192 endif() 193 194 if( CMAKE_TOOLCHAIN_FILE ) 195 # touch toolchain variable to suppress "unused variable" warning 196 endif() 197 198 # inherit settings in recursive loads 199 get_property( _CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE ) 200 if( _CMAKE_IN_TRY_COMPILE ) 201 include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL ) 202 endif() 203 204 # this one is important 205 if( CMAKE_VERSION VERSION_GREATER "3.0.99" ) 206 set( CMAKE_SYSTEM_NAME Android ) 207 else() 208 set( CMAKE_SYSTEM_NAME Linux ) 209 endif() 210 211 # this one not so much 212 set( CMAKE_SYSTEM_VERSION 1 ) 213 214 # rpath makes low sense for Android 215 set( CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "" ) 216 set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." ) 217 218 # NDK search paths 219 set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r10d -r10c -r10b -r10 -r9d -r9c -r9b -r9 -r8e -r8d -r8c -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) 220 if( NOT DEFINED ANDROID_NDK_SEARCH_PATHS ) 221 if( CMAKE_HOST_WIN32 ) 222 file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS ) 223 set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}" "$ENV{SystemDrive}/NVPACK" ) 224 else() 225 file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS ) 226 set( ANDROID_NDK_SEARCH_PATHS /opt "${ANDROID_NDK_SEARCH_PATHS}/NVPACK" ) 227 endif() 228 endif() 229 if( NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) 230 set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain ) 231 endif() 232 233 # known ABIs 234 set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" ) 235 set( ANDROID_SUPPORTED_ABIS_arm64 "arm64-v8a" ) 236 set( ANDROID_SUPPORTED_ABIS_x86 "x86" ) 237 set( ANDROID_SUPPORTED_ABIS_x86_64 "x86_64" ) 238 set( ANDROID_SUPPORTED_ABIS_mips "mips" ) 239 set( ANDROID_SUPPORTED_ABIS_mips64 "mips64" ) 240 241 # API level defaults 242 set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) 243 set( ANDROID_DEFAULT_NDK_API_LEVEL_arm64 21 ) 244 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) 245 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86_64 21 ) 246 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 ) 247 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips64 21 ) 248 249 250 macro( __LIST_FILTER listvar regex ) 251 if( ${listvar} ) 252 foreach( __val ${${listvar}} ) 253 if( __val MATCHES "${regex}" ) 254 list( REMOVE_ITEM ${listvar} "${__val}" ) 255 endif() 256 endforeach() 257 endif() 258 endmacro() 259 260 macro( __INIT_VARIABLE var_name ) 261 set( __test_path 0 ) 262 foreach( __var ${ARGN} ) 263 if( __var STREQUAL "PATH" ) 264 set( __test_path 1 ) 265 break() 266 endif() 267 endforeach() 268 269 if( __test_path AND NOT EXISTS "${${var_name}}" ) 270 unset( ${var_name} CACHE ) 271 endif() 272 273 if( " ${${var_name}}" STREQUAL " " ) 274 set( __values 0 ) 275 foreach( __var ${ARGN} ) 276 if( __var STREQUAL "VALUES" ) 277 set( __values 1 ) 278 elseif( NOT __var STREQUAL "PATH" ) 279 if( __var MATCHES "^ENV_.*$" ) 280 string( REPLACE "ENV_" "" __var "${__var}" ) 281 set( __value "$ENV{${__var}}" ) 282 elseif( DEFINED ${__var} ) 283 set( __value "${${__var}}" ) 284 elseif( __values ) 285 set( __value "${__var}" ) 286 else() 287 set( __value "" ) 288 endif() 289 290 if( NOT " ${__value}" STREQUAL " " AND (NOT __test_path OR EXISTS "${__value}") ) 291 set( ${var_name} "${__value}" ) 292 break() 293 endif() 294 endif() 295 endforeach() 296 unset( __value ) 297 unset( __values ) 298 endif() 299 300 if( __test_path ) 301 file( TO_CMAKE_PATH "${${var_name}}" ${var_name} ) 302 endif() 303 unset( __test_path ) 304 endmacro() 305 306 macro( __DETECT_NATIVE_API_LEVEL _var _path ) 307 set( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*.*$" ) 308 file( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" ) 309 if( NOT __apiFileContent ) 310 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." ) 311 endif() 312 string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" ) 313 unset( __apiFileContent ) 314 unset( __ndkApiLevelRegex ) 315 endmacro() 316 317 macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root ) 318 if( EXISTS "${_root}" ) 319 file( GLOB __gccExePath RELATIVE "${_root}/bin/" "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) 320 __LIST_FILTER( __gccExePath "^[.].*" ) 321 list( LENGTH __gccExePath __gccExePathsCount ) 322 if( NOT __gccExePathsCount EQUAL 1 AND NOT _CMAKE_IN_TRY_COMPILE ) 323 message( WARNING "Could not determine machine name for compiler from ${_root}" ) 324 set( ${_var} "" ) 325 else() 326 get_filename_component( __gccExeName "${__gccExePath}" NAME_WE ) 327 string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" ) 328 endif() 329 unset( __gccExePath ) 330 unset( __gccExePathsCount ) 331 unset( __gccExeName ) 332 else() 333 set( ${_var} "" ) 334 endif() 335 endmacro() 336 337 338 # fight against cygwin 339 set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") 340 mark_as_advanced( ANDROID_FORBID_SYGWIN ) 341 if( ANDROID_FORBID_SYGWIN ) 342 if( CYGWIN ) 343 message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." ) 344 endif() 345 346 if( CMAKE_HOST_WIN32 ) 347 # remove cygwin from PATH 348 set( __new_path "$ENV{PATH}") 349 __LIST_FILTER( __new_path "cygwin" ) 350 set(ENV{PATH} "${__new_path}") 351 unset(__new_path) 352 endif() 353 endif() 354 355 356 # detect current host platform 357 if( NOT DEFINED ANDROID_NDK_HOST_X64 AND (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64" OR CMAKE_HOST_APPLE) ) 358 set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" ) 359 mark_as_advanced( ANDROID_NDK_HOST_X64 ) 360 endif() 361 362 set( TOOL_OS_SUFFIX "" ) 363 if( CMAKE_HOST_APPLE ) 364 set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86_64" ) 365 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "darwin-x86" ) 366 elseif( CMAKE_HOST_WIN32 ) 367 set( ANDROID_NDK_HOST_SYSTEM_NAME "windows-x86_64" ) 368 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "windows" ) 369 set( TOOL_OS_SUFFIX ".exe" ) 370 elseif( CMAKE_HOST_UNIX ) 371 set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86_64" ) 372 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "linux-x86" ) 373 else() 374 message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) 375 endif() 376 377 if( NOT ANDROID_NDK_HOST_X64 ) 378 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) 379 endif() 380 381 # see if we have path to Android NDK 382 if( NOT ANDROID_NDK AND NOT ANDROID_STANDALONE_TOOLCHAIN ) 383 __INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK ) 384 endif() 385 if( NOT ANDROID_NDK ) 386 # see if we have path to Android standalone toolchain 387 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN ) 388 389 if( NOT ANDROID_STANDALONE_TOOLCHAIN ) 390 #try to find Android NDK in one of the the default locations 391 set( __ndkSearchPaths ) 392 foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} ) 393 foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} ) 394 list( APPEND __ndkSearchPaths "${__ndkSearchPath}/android-ndk${suffix}" ) 395 endforeach() 396 endforeach() 397 __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} ) 398 unset( __ndkSearchPaths ) 399 400 if( ANDROID_NDK ) 401 message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" ) 402 message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" ) 403 else() 404 #try to find Android standalone toolchain in one of the the default locations 405 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) 406 407 if( ANDROID_STANDALONE_TOOLCHAIN ) 408 message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" ) 409 message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" ) 410 endif( ANDROID_STANDALONE_TOOLCHAIN ) 411 endif( ANDROID_NDK ) 412 endif( NOT ANDROID_STANDALONE_TOOLCHAIN ) 413 endif( NOT ANDROID_NDK ) 414 415 # remember found paths 416 if( ANDROID_NDK ) 417 get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE ) 418 set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" FORCE ) 419 set( BUILD_WITH_ANDROID_NDK True ) 420 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT" ) 421 file( STRINGS "${ANDROID_NDK}/RELEASE.TXT" ANDROID_NDK_RELEASE_FULL LIMIT_COUNT 1 REGEX "r[0-9]+[a-z]?" ) 422 string( REGEX MATCH "r([0-9]+)([a-z]?)" ANDROID_NDK_RELEASE "${ANDROID_NDK_RELEASE_FULL}" ) 423 else() 424 set( ANDROID_NDK_RELEASE "r1x" ) 425 set( ANDROID_NDK_RELEASE_FULL "unreleased" ) 426 endif() 427 string( REGEX REPLACE "r([0-9]+)([a-z]?)" "\\1*1000" ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE}" ) 428 string( FIND " abcdefghijklmnopqastuvwxyz" "${CMAKE_MATCH_2}" __ndkReleaseLetterNum ) 429 math( EXPR ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE_NUM}+${__ndkReleaseLetterNum}" ) 430 elseif( ANDROID_STANDALONE_TOOLCHAIN ) 431 get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE ) 432 # try to detect change 433 if( CMAKE_AR ) 434 string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length ) 435 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath ) 436 if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN ) 437 message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." ) 438 endif() 439 unset( __androidStandaloneToolchainPreviousPath ) 440 unset( __length ) 441 endif() 442 set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" FORCE ) 443 set( BUILD_WITH_STANDALONE_TOOLCHAIN True ) 444 else() 445 list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH) 446 message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolchain. 447 You should either set an environment variable: 448 export ANDROID_NDK=~/my-android-ndk 449 or 450 export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain 451 or put the toolchain or NDK in the default path: 452 sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH}/android-ndk 453 sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) 454 endif() 455 456 # android NDK layout 457 if( BUILD_WITH_ANDROID_NDK ) 458 if( NOT DEFINED ANDROID_NDK_LAYOUT ) 459 # try to automatically detect the layout 460 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT") 461 set( ANDROID_NDK_LAYOUT "RELEASE" ) 462 elseif( EXISTS "${ANDROID_NDK}/../../linux-x86/toolchain/" ) 463 set( ANDROID_NDK_LAYOUT "LINARO" ) 464 elseif( EXISTS "${ANDROID_NDK}/../../gcc/" ) 465 set( ANDROID_NDK_LAYOUT "ANDROID" ) 466 endif() 467 endif() 468 set( ANDROID_NDK_LAYOUT "${ANDROID_NDK_LAYOUT}" CACHE STRING "The inner layout of NDK" ) 469 mark_as_advanced( ANDROID_NDK_LAYOUT ) 470 if( ANDROID_NDK_LAYOUT STREQUAL "LINARO" ) 471 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 472 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../${ANDROID_NDK_HOST_SYSTEM_NAME}/toolchain" ) 473 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 474 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 475 elseif( ANDROID_NDK_LAYOUT STREQUAL "ANDROID" ) 476 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 477 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../gcc/${ANDROID_NDK_HOST_SYSTEM_NAME}/arm" ) 478 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 479 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 480 else() # ANDROID_NDK_LAYOUT STREQUAL "RELEASE" 481 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/toolchains" ) 482 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) 483 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME2}" ) 484 endif() 485 get_filename_component( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK_TOOLCHAINS_PATH}" ABSOLUTE ) 486 487 # try to detect change of NDK 488 if( CMAKE_AR ) 489 string( LENGTH "${ANDROID_NDK_TOOLCHAINS_PATH}" __length ) 490 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) 491 if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK_TOOLCHAINS_PATH ) 492 message( FATAL_ERROR "It is not possible to change the path to the NDK on subsequent CMake run. You must remove all generated files from your build folder first. 493 " ) 494 endif() 495 unset( __androidNdkPreviousPath ) 496 unset( __length ) 497 endif() 498 endif() 499 500 501 # get all the details about standalone toolchain 502 if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 503 __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) 504 set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 505 set( __availableToolchains "standalone" ) 506 __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" ) 507 if( NOT __availableToolchainMachines ) 508 message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." ) 509 endif() 510 if( __availableToolchainMachines MATCHES x86_64 ) 511 set( __availableToolchainArchs "x86_64" ) 512 elseif( __availableToolchainMachines MATCHES i686 ) 513 set( __availableToolchainArchs "x86" ) 514 elseif( __availableToolchainMachines MATCHES aarch64 ) 515 set( __availableToolchainArchs "arm64" ) 516 elseif( __availableToolchainMachines MATCHES arm ) 517 set( __availableToolchainArchs "arm" ) 518 elseif( __availableToolchainMachines MATCHES mips64el ) 519 set( __availableToolchainArchs "mips64" ) 520 elseif( __availableToolchainMachines MATCHES mipsel ) 521 set( __availableToolchainArchs "mips" ) 522 endif() 523 execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" -dumpversion 524 OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) 525 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9]+)?" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) 526 if( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/bin/clang${TOOL_OS_SUFFIX}" ) 527 list( APPEND __availableToolchains "standalone-clang" ) 528 list( APPEND __availableToolchainMachines ${__availableToolchainMachines} ) 529 list( APPEND __availableToolchainArchs ${__availableToolchainArchs} ) 530 list( APPEND __availableToolchainCompilerVersions ${__availableToolchainCompilerVersions} ) 531 endif() 532 endif() 533 534 macro( __GLOB_NDK_TOOLCHAINS __availableToolchainsVar __availableToolchainsLst __toolchain_subpath ) 535 foreach( __toolchain ${${__availableToolchainsLst}} ) 536 if( "${__toolchain}" MATCHES "-clang3[.][0-9]$" AND NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}${__toolchain_subpath}" ) 537 SET( __toolchainVersionRegex "^TOOLCHAIN_VERSION[\t ]+:=[\t ]+(.*)$" ) 538 FILE( STRINGS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}/setup.mk" __toolchainVersionStr REGEX "${__toolchainVersionRegex}" ) 539 if( __toolchainVersionStr ) 540 string( REGEX REPLACE "${__toolchainVersionRegex}" "\\1" __toolchainVersionStr "${__toolchainVersionStr}" ) 541 string( REGEX REPLACE "-clang3[.][0-9]$" "-${__toolchainVersionStr}" __gcc_toolchain "${__toolchain}" ) 542 else() 543 string( REGEX REPLACE "-clang3[.][0-9]$" "-4.6" __gcc_toolchain "${__toolchain}" ) 544 endif() 545 unset( __toolchainVersionStr ) 546 unset( __toolchainVersionRegex ) 547 else() 548 set( __gcc_toolchain "${__toolchain}" ) 549 endif() 550 __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK_TOOLCHAINS_PATH}/${__gcc_toolchain}${__toolchain_subpath}" ) 551 if( __machine ) 552 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9x]+)?$" __version "${__gcc_toolchain}" ) 553 if( __machine MATCHES x86_64 ) 554 set( __arch "x86_64" ) 555 elseif( __machine MATCHES i686 ) 556 set( __arch "x86" ) 557 elseif( __machine MATCHES aarch64 ) 558 set( __arch "arm64" ) 559 elseif( __machine MATCHES arm ) 560 set( __arch "arm" ) 561 elseif( __machine MATCHES mips64el ) 562 set( __arch "mips64" ) 563 elseif( __machine MATCHES mipsel ) 564 set( __arch "mips" ) 565 else() 566 set( __arch "" ) 567 endif() 568 #message("machine: !${__machine}!\narch: !${__arch}!\nversion: !${__version}!\ntoolchain: !${__toolchain}!\n") 569 if (__arch) 570 list( APPEND __availableToolchainMachines "${__machine}" ) 571 list( APPEND __availableToolchainArchs "${__arch}" ) 572 list( APPEND __availableToolchainCompilerVersions "${__version}" ) 573 list( APPEND ${__availableToolchainsVar} "${__toolchain}" ) 574 endif() 575 endif() 576 unset( __gcc_toolchain ) 577 endforeach() 578 endmacro() 579 580 # get all the details about NDK 581 if( BUILD_WITH_ANDROID_NDK ) 582 file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" ) 583 string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) 584 set( __availableToolchains "" ) 585 set( __availableToolchainMachines "" ) 586 set( __availableToolchainArchs "" ) 587 set( __availableToolchainCompilerVersions "" ) 588 if( ANDROID_TOOLCHAIN_NAME AND EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_TOOLCHAIN_NAME}/" ) 589 # do not go through all toolchains if we know the name 590 set( __availableToolchainsLst "${ANDROID_TOOLCHAIN_NAME}" ) 591 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 592 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 593 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 594 if( __availableToolchains ) 595 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 596 endif() 597 endif() 598 endif() 599 if( NOT __availableToolchains ) 600 file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" ) 601 if( __availableToolchainsLst ) 602 list(SORT __availableToolchainsLst) # we need clang to go after gcc 603 endif() 604 __LIST_FILTER( __availableToolchainsLst "^[.]" ) 605 __LIST_FILTER( __availableToolchainsLst "llvm" ) 606 __LIST_FILTER( __availableToolchainsLst "renderscript" ) 607 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 608 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 609 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 610 if( __availableToolchains ) 611 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 612 endif() 613 endif() 614 endif() 615 if( NOT __availableToolchains ) 616 message( FATAL_ERROR "Could not find any working toolchain in the NDK. Probably your Android NDK is broken." ) 617 endif() 618 endif() 619 620 # build list of available ABIs 621 set( ANDROID_SUPPORTED_ABIS "" ) 622 set( __uniqToolchainArchNames ${__availableToolchainArchs} ) 623 list( REMOVE_DUPLICATES __uniqToolchainArchNames ) 624 list( SORT __uniqToolchainArchNames ) 625 foreach( __arch ${__uniqToolchainArchNames} ) 626 list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} ) 627 endforeach() 628 unset( __uniqToolchainArchNames ) 629 if( NOT ANDROID_SUPPORTED_ABIS ) 630 message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." ) 631 endif() 632 633 # choose target ABI 634 __INIT_VARIABLE( ANDROID_ABI VALUES ${ANDROID_SUPPORTED_ABIS} ) 635 # verify that target ABI is supported 636 list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx ) 637 if( __androidAbiIdx EQUAL -1 ) 638 string( REPLACE ";" "\", \"" PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" ) 639 message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain. 640 Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\" 641 " ) 642 endif() 643 unset( __androidAbiIdx ) 644 645 # set target ABI options 646 if( ANDROID_ABI STREQUAL "x86" ) 647 set( X86 true ) 648 set( ANDROID_NDK_ABI_NAME "x86" ) 649 set( ANDROID_ARCH_NAME "x86" ) 650 set( ANDROID_LLVM_TRIPLE "i686-none-linux-android" ) 651 set( CMAKE_SYSTEM_PROCESSOR "i686" ) 652 elseif( ANDROID_ABI STREQUAL "x86_64" ) 653 set( X86 true ) 654 set( X86_64 true ) 655 set( ANDROID_NDK_ABI_NAME "x86_64" ) 656 set( ANDROID_ARCH_NAME "x86_64" ) 657 set( CMAKE_SYSTEM_PROCESSOR "x86_64" ) 658 set( ANDROID_LLVM_TRIPLE "x86_64-none-linux-android" ) 659 elseif( ANDROID_ABI STREQUAL "mips64" ) 660 set( MIPS64 true ) 661 set( ANDROID_NDK_ABI_NAME "mips64" ) 662 set( ANDROID_ARCH_NAME "mips64" ) 663 set( ANDROID_LLVM_TRIPLE "mips64el-none-linux-android" ) 664 set( CMAKE_SYSTEM_PROCESSOR "mips64" ) 665 elseif( ANDROID_ABI STREQUAL "mips" ) 666 set( MIPS true ) 667 set( ANDROID_NDK_ABI_NAME "mips" ) 668 set( ANDROID_ARCH_NAME "mips" ) 669 set( ANDROID_LLVM_TRIPLE "mipsel-none-linux-android" ) 670 set( CMAKE_SYSTEM_PROCESSOR "mips" ) 671 elseif( ANDROID_ABI STREQUAL "arm64-v8a" ) 672 set( ARM64_V8A true ) 673 set( ANDROID_NDK_ABI_NAME "arm64-v8a" ) 674 set( ANDROID_ARCH_NAME "arm64" ) 675 set( ANDROID_LLVM_TRIPLE "aarch64-none-linux-android" ) 676 set( CMAKE_SYSTEM_PROCESSOR "aarch64" ) 677 set( VFPV3 true ) 678 set( NEON true ) 679 elseif( ANDROID_ABI STREQUAL "armeabi" ) 680 set( ARMEABI true ) 681 set( ANDROID_NDK_ABI_NAME "armeabi" ) 682 set( ANDROID_ARCH_NAME "arm" ) 683 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 684 set( CMAKE_SYSTEM_PROCESSOR "armv5te" ) 685 elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" ) 686 set( ARMEABI_V6 true ) 687 set( ANDROID_NDK_ABI_NAME "armeabi" ) 688 set( ANDROID_ARCH_NAME "arm" ) 689 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 690 set( CMAKE_SYSTEM_PROCESSOR "armv6" ) 691 # need always fallback to older platform 692 set( ARMEABI true ) 693 elseif( ANDROID_ABI STREQUAL "armeabi-v7a") 694 set( ARMEABI_V7A true ) 695 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 696 set( ANDROID_ARCH_NAME "arm" ) 697 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 698 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 699 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" ) 700 set( ARMEABI_V7A true ) 701 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 702 set( ANDROID_ARCH_NAME "arm" ) 703 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 704 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 705 set( VFPV3 true ) 706 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" ) 707 set( ARMEABI_V7A true ) 708 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 709 set( ANDROID_ARCH_NAME "arm" ) 710 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 711 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 712 set( VFPV3 true ) 713 set( NEON true ) 714 else() 715 message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." ) 716 endif() 717 718 if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" ) 719 # really dirty hack 720 # it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run... 721 file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" ) 722 endif() 723 724 if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 ) 725 __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD VALUES OFF ) 726 set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE ) 727 mark_as_advanced( ANDROID_FORCE_ARM_BUILD ) 728 else() 729 unset( ANDROID_FORCE_ARM_BUILD CACHE ) 730 endif() 731 732 # choose toolchain 733 if( ANDROID_TOOLCHAIN_NAME ) 734 list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx ) 735 if( __toolchainIdx EQUAL -1 ) 736 list( SORT __availableToolchains ) 737 string( REPLACE ";" "\n * " toolchains_list "${__availableToolchains}" ) 738 set( toolchains_list " * ${toolchains_list}") 739 message( FATAL_ERROR "Specified toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing in your NDK or broken. Please verify that your NDK is working or select another compiler toolchain. 740 To configure the toolchain set CMake variable ANDROID_TOOLCHAIN_NAME to one of the following values:\n${toolchains_list}\n" ) 741 endif() 742 list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) 743 if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 744 message( SEND_ERROR "Selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." ) 745 endif() 746 else() 747 set( __toolchainIdx -1 ) 748 set( __applicableToolchains "" ) 749 set( __toolchainMaxVersion "0.0.0" ) 750 list( LENGTH __availableToolchains __availableToolchainsCount ) 751 math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" ) 752 foreach( __idx RANGE ${__availableToolchainsCount} ) 753 list( GET __availableToolchainArchs ${__idx} __toolchainArch ) 754 if( __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 755 list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) 756 string( REPLACE "x" "99" __toolchainVersion "${__toolchainVersion}") 757 if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion ) 758 set( __toolchainMaxVersion "${__toolchainVersion}" ) 759 set( __toolchainIdx ${__idx} ) 760 endif() 761 endif() 762 endforeach() 763 unset( __availableToolchainsCount ) 764 unset( __toolchainMaxVersion ) 765 unset( __toolchainVersion ) 766 endif() 767 unset( __toolchainArch ) 768 if( __toolchainIdx EQUAL -1 ) 769 message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." ) 770 endif() 771 list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME ) 772 list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME ) 773 list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION ) 774 775 unset( __toolchainIdx ) 776 unset( __availableToolchains ) 777 unset( __availableToolchainMachines ) 778 unset( __availableToolchainArchs ) 779 unset( __availableToolchainCompilerVersions ) 780 781 # choose native API level 782 __INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) 783 string( REPLACE "android-" "" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) 784 string( STRIP "${ANDROID_NATIVE_API_LEVEL}" ANDROID_NATIVE_API_LEVEL ) 785 # adjust API level 786 set( __real_api_level ${ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME}} ) 787 foreach( __level ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 788 if( (__level LESS ANDROID_NATIVE_API_LEVEL OR __level STREQUAL ANDROID_NATIVE_API_LEVEL) AND NOT __level LESS __real_api_level ) 789 set( __real_api_level ${__level} ) 790 endif() 791 endforeach() 792 if( __real_api_level AND NOT ANDROID_NATIVE_API_LEVEL STREQUAL __real_api_level ) 793 message( STATUS "Adjusting Android API level 'android-${ANDROID_NATIVE_API_LEVEL}' to 'android-${__real_api_level}'") 794 set( ANDROID_NATIVE_API_LEVEL ${__real_api_level} ) 795 endif() 796 unset(__real_api_level) 797 # validate 798 list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) 799 if( __levelIdx EQUAL -1 ) 800 message( SEND_ERROR "Specified Android native API level 'android-${ANDROID_NATIVE_API_LEVEL}' is not supported by your NDK/toolchain." ) 801 else() 802 if( BUILD_WITH_ANDROID_NDK ) 803 __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" ) 804 if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL AND NOT __realApiLevel GREATER 9000 ) 805 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." ) 806 endif() 807 unset( __realApiLevel ) 808 endif() 809 set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE ) 810 set( CMAKE_ANDROID_API ${ANDROID_NATIVE_API_LEVEL} ) 811 if( CMAKE_VERSION VERSION_GREATER "2.8" ) 812 list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS ) 813 set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 814 endif() 815 endif() 816 unset( __levelIdx ) 817 818 819 # remember target ABI 820 set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) 821 if( CMAKE_VERSION VERSION_GREATER "2.8" ) 822 list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} ) 823 set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} ) 824 endif() 825 826 827 # runtime choice (STL, rtti, exceptions) 828 if( NOT ANDROID_STL ) 829 set( ANDROID_STL gnustl_static ) 830 endif() 831 set( ANDROID_STL "${ANDROID_STL}" CACHE STRING "C++ runtime" ) 832 set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and exceptions support based on C++ runtime" ) 833 mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES ) 834 835 if( BUILD_WITH_ANDROID_NDK ) 836 if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$") 837 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 838 The possible values are: 839 none -> Do not configure the runtime. 840 system -> Use the default minimal system C++ runtime library. 841 system_re -> Same as system but with rtti and exceptions. 842 gabi++_static -> Use the GAbi++ runtime as a static library. 843 gabi++_shared -> Use the GAbi++ runtime as a shared library. 844 stlport_static -> Use the STLport runtime as a static library. 845 stlport_shared -> Use the STLport runtime as a shared library. 846 gnustl_static -> (default) Use the GNU STL as a static library. 847 gnustl_shared -> Use the GNU STL as a shared library. 848 " ) 849 endif() 850 elseif( BUILD_WITH_STANDALONE_TOOLCHAIN ) 851 if( NOT "${ANDROID_STL}" MATCHES "^(none|gnustl_static|gnustl_shared)$") 852 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 853 The possible values are: 854 none -> Do not configure the runtime. 855 gnustl_static -> (default) Use the GNU STL as a static library. 856 gnustl_shared -> Use the GNU STL as a shared library. 857 " ) 858 endif() 859 endif() 860 861 unset( ANDROID_RTTI ) 862 unset( ANDROID_EXCEPTIONS ) 863 unset( ANDROID_STL_INCLUDE_DIRS ) 864 unset( __libstl ) 865 unset( __libsupcxx ) 866 867 if( NOT _CMAKE_IN_TRY_COMPILE AND ANDROID_NDK_RELEASE STREQUAL "r7b" AND ARMEABI_V7A AND NOT VFPV3 AND ANDROID_STL MATCHES "gnustl" ) 868 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). 869 You are strongly recommended to switch to another NDK release. 870 " ) 871 endif() 872 873 if( NOT _CMAKE_IN_TRY_COMPILE AND X86 AND ANDROID_STL MATCHES "gnustl" AND ANDROID_NDK_RELEASE STREQUAL "r6" ) 874 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: 875 See https://android.googlesource.com/platform/development.git f907f4f9d4e56ccc8093df6fee54454b8bcab6c2 876 diff --git a/ndk/platforms/android-9/arch-x86/include/machine/_types.h b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 877 index 5e28c64..65892a1 100644 878 --- a/ndk/platforms/android-9/arch-x86/include/machine/_types.h 879 +++ b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 880 @@ -51,7 +51,11 @@ typedef long int ssize_t; 881 #endif 882 #ifndef _PTRDIFF_T 883 #define _PTRDIFF_T 884 -typedef long ptrdiff_t; 885 +# ifdef __ANDROID__ 886 + typedef int ptrdiff_t; 887 +# else 888 + typedef long ptrdiff_t; 889 +# endif 890 #endif 891 " ) 892 endif() 893 894 895 # setup paths and STL for standalone toolchain 896 if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 897 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 898 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 899 set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) 900 901 if( NOT ANDROID_STL STREQUAL "none" ) 902 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/include/c++/${ANDROID_COMPILER_VERSION}" ) 903 if( NOT EXISTS "${ANDROID_STL_INCLUDE_DIRS}" ) 904 # old location ( pre r8c ) 905 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}" ) 906 endif() 907 if( ARMEABI_V7A AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) 908 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) 909 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) 910 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) 911 else() 912 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) 913 endif() 914 # always search static GNU STL to get the location of libsupc++.a 915 if( ARMEABI_V7A AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) 916 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) 917 elseif( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) 918 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}" ) 919 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libstdc++.a" ) 920 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb" ) 921 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libstdc++.a" ) 922 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) 923 endif() 924 if( __libstl ) 925 set( __libsupcxx "${__libstl}/libsupc++.a" ) 926 set( __libstl "${__libstl}/libstdc++.a" ) 927 endif() 928 if( NOT EXISTS "${__libsupcxx}" ) 929 message( FATAL_ERROR "The required libstdsupc++.a is missing in your standalone toolchain. 930 Usually it happens because of bug in make-standalone-toolchain.sh script from NDK r7, r7b and r7c. 931 You need to either upgrade to newer NDK or manually copy 932 $ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a 933 to 934 ${__libsupcxx} 935 " ) 936 endif() 937 if( ANDROID_STL STREQUAL "gnustl_shared" ) 938 if( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 939 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 940 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 941 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 942 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 943 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 944 endif() 945 endif() 946 endif() 947 endif() 948 949 # clang 950 if( "${ANDROID_TOOLCHAIN_NAME}" STREQUAL "standalone-clang" ) 951 set( ANDROID_COMPILER_IS_CLANG 1 ) 952 execute_process( COMMAND "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/clang${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE ANDROID_CLANG_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE ) 953 string( REGEX MATCH "[0-9]+[.][0-9]+" ANDROID_CLANG_VERSION "${ANDROID_CLANG_VERSION}") 954 elseif( "${ANDROID_TOOLCHAIN_NAME}" MATCHES "-clang3[.][0-9]?$" ) 955 string( REGEX MATCH "3[.][0-9]$" ANDROID_CLANG_VERSION "${ANDROID_TOOLCHAIN_NAME}") 956 string( REGEX REPLACE "-clang${ANDROID_CLANG_VERSION}$" "-${ANDROID_COMPILER_VERSION}" ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 957 if( NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}/bin/clang${TOOL_OS_SUFFIX}" ) 958 message( FATAL_ERROR "Could not find the Clang compiler driver" ) 959 endif() 960 set( ANDROID_COMPILER_IS_CLANG 1 ) 961 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 962 else() 963 set( ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 964 unset( ANDROID_COMPILER_IS_CLANG CACHE ) 965 endif() 966 967 string( REPLACE "." "" _clang_name "clang${ANDROID_CLANG_VERSION}" ) 968 if( NOT EXISTS "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" ) 969 set( _clang_name "clang" ) 970 endif() 971 972 973 # setup paths and STL for NDK 974 if( BUILD_WITH_ANDROID_NDK ) 975 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 976 set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) 977 978 if( ANDROID_STL STREQUAL "none" ) 979 # do nothing 980 elseif( ANDROID_STL STREQUAL "system" ) 981 set( ANDROID_RTTI OFF ) 982 set( ANDROID_EXCEPTIONS OFF ) 983 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 984 elseif( ANDROID_STL STREQUAL "system_re" ) 985 set( ANDROID_RTTI ON ) 986 set( ANDROID_EXCEPTIONS ON ) 987 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 988 elseif( ANDROID_STL MATCHES "gabi" ) 989 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 990 message( FATAL_ERROR "gabi++ is not available in your NDK. You have to upgrade to NDK r7 or newer to use gabi++.") 991 endif() 992 set( ANDROID_RTTI ON ) 993 set( ANDROID_EXCEPTIONS OFF ) 994 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/gabi++/include" ) 995 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gabi++/libs/${ANDROID_NDK_ABI_NAME}/libgabi++_static.a" ) 996 elseif( ANDROID_STL MATCHES "stlport" ) 997 if( NOT ANDROID_NDK_RELEASE_NUM LESS 8004 ) # before r8d 998 set( ANDROID_EXCEPTIONS ON ) 999 else() 1000 set( ANDROID_EXCEPTIONS OFF ) 1001 endif() 1002 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1003 set( ANDROID_RTTI OFF ) 1004 else() 1005 set( ANDROID_RTTI ON ) 1006 endif() 1007 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) 1008 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) 1009 elseif( ANDROID_STL MATCHES "gnustl" ) 1010 set( ANDROID_EXCEPTIONS ON ) 1011 set( ANDROID_RTTI ON ) 1012 if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1013 if( ARMEABI_V7A AND ANDROID_COMPILER_VERSION VERSION_EQUAL "4.7" AND ANDROID_NDK_RELEASE STREQUAL "r8d" ) 1014 # gnustl binary for 4.7 compiler is buggy :( 1015 # TODO: look for right fix 1016 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/4.6" ) 1017 else() 1018 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1019 endif() 1020 else() 1021 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" ) 1022 endif() 1023 set( ANDROID_STL_INCLUDE_DIRS "${__libstl}/include" "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/include" "${__libstl}/include/backward" ) 1024 if( EXISTS "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1025 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1026 else() 1027 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) 1028 endif() 1029 else() 1030 message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" ) 1031 endif() 1032 # find libsupc++.a - rtti & exceptions 1033 if( ANDROID_STL STREQUAL "system_re" OR ANDROID_STL MATCHES "gnustl" ) 1034 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r8b or newer 1035 if( NOT EXISTS "${__libsupcxx}" ) 1036 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r7-r8 1037 endif() 1038 if( NOT EXISTS "${__libsupcxx}" ) # before r7 1039 if( ARMEABI_V7A ) 1040 if( ANDROID_FORCE_ARM_BUILD ) 1041 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) 1042 else() 1043 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) 1044 endif() 1045 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD ) 1046 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) 1047 else() 1048 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) 1049 endif() 1050 endif() 1051 if( NOT EXISTS "${__libsupcxx}") 1052 message( ERROR "Could not find libsupc++.a for a chosen platform. Either your NDK is not supported or is broken.") 1053 endif() 1054 endif() 1055 endif() 1056 1057 1058 # case of shared STL linkage 1059 if( ANDROID_STL MATCHES "shared" AND DEFINED __libstl ) 1060 string( REPLACE "_static.a" "_shared.so" __libstl "${__libstl}" ) 1061 # TODO: check if .so file exists before the renaming 1062 endif() 1063 1064 1065 # ccache support 1066 __INIT_VARIABLE( _ndk_ccache NDK_CCACHE ENV_NDK_CCACHE ) 1067 if( _ndk_ccache ) 1068 if( DEFINED NDK_CCACHE AND NOT EXISTS NDK_CCACHE ) 1069 unset( NDK_CCACHE CACHE ) 1070 endif() 1071 find_program( NDK_CCACHE "${_ndk_ccache}" DOC "The path to ccache binary") 1072 else() 1073 unset( NDK_CCACHE CACHE ) 1074 endif() 1075 unset( _ndk_ccache ) 1076 1077 1078 # setup the cross-compiler 1079 if( NOT CMAKE_C_COMPILER ) 1080 if( NDK_CCACHE AND NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1081 set( CMAKE_C_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C compiler" ) 1082 set( CMAKE_CXX_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C++ compiler" ) 1083 if( ANDROID_COMPILER_IS_CLANG ) 1084 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1085 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1086 else() 1087 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1088 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1089 endif() 1090 else() 1091 if( ANDROID_COMPILER_IS_CLANG ) 1092 set( CMAKE_C_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1093 set( CMAKE_CXX_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1094 else() 1095 set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler" ) 1096 set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler" ) 1097 endif() 1098 endif() 1099 set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "assembler" ) 1100 set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" ) 1101 if( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" ) 1102 # Use gcc-ar if we have it for better LTO support. 1103 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) 1104 else() 1105 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) 1106 endif() 1107 set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" ) 1108 set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" ) 1109 set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" ) 1110 set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" ) 1111 set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) 1112 endif() 1113 1114 set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" ) 1115 if( CMAKE_VERSION VERSION_LESS 2.8.5 ) 1116 set( CMAKE_ASM_COMPILER_ARG1 "-c" ) 1117 endif() 1118 if( APPLE ) 1119 find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool ) 1120 if( NOT CMAKE_INSTALL_NAME_TOOL ) 1121 message( FATAL_ERROR "Could not find install_name_tool, please check your installation." ) 1122 endif() 1123 mark_as_advanced( CMAKE_INSTALL_NAME_TOOL ) 1124 endif() 1125 1126 # Force set compilers because standard identification works badly for us 1127 include( CMakeForceCompiler ) 1128 CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) 1129 if( ANDROID_COMPILER_IS_CLANG ) 1130 set( CMAKE_C_COMPILER_ID Clang ) 1131 endif() 1132 set( CMAKE_C_PLATFORM_ID Linux ) 1133 if( X86_64 OR MIPS64 OR ARM64_V8A ) 1134 set( CMAKE_C_SIZEOF_DATA_PTR 8 ) 1135 else() 1136 set( CMAKE_C_SIZEOF_DATA_PTR 4 ) 1137 endif() 1138 set( CMAKE_C_HAS_ISYSROOT 1 ) 1139 set( CMAKE_C_COMPILER_ABI ELF ) 1140 CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) 1141 if( ANDROID_COMPILER_IS_CLANG ) 1142 set( CMAKE_CXX_COMPILER_ID Clang) 1143 endif() 1144 set( CMAKE_CXX_PLATFORM_ID Linux ) 1145 set( CMAKE_CXX_SIZEOF_DATA_PTR ${CMAKE_C_SIZEOF_DATA_PTR} ) 1146 set( CMAKE_CXX_HAS_ISYSROOT 1 ) 1147 set( CMAKE_CXX_COMPILER_ABI ELF ) 1148 set( CMAKE_CXX_SOURCE_FILE_EXTENSIONS cc cp cxx cpp CPP c++ C ) 1149 # force ASM compiler (required for CMake < 2.8.5) 1150 set( CMAKE_ASM_COMPILER_ID_RUN TRUE ) 1151 set( CMAKE_ASM_COMPILER_ID GNU ) 1152 set( CMAKE_ASM_COMPILER_WORKS TRUE ) 1153 set( CMAKE_ASM_COMPILER_FORCED TRUE ) 1154 set( CMAKE_COMPILER_IS_GNUASM 1) 1155 set( CMAKE_ASM_SOURCE_FILE_EXTENSIONS s S asm ) 1156 1157 foreach( lang C CXX ASM ) 1158 if( ANDROID_COMPILER_IS_CLANG ) 1159 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_CLANG_VERSION} ) 1160 else() 1161 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_COMPILER_VERSION} ) 1162 endif() 1163 endforeach() 1164 1165 # flags and definitions 1166 remove_definitions( -DANDROID ) 1167 add_definitions( -DANDROID ) 1168 1169 if( ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1170 if( CMAKE_HOST_WIN32 ) 1171 # try to convert path to 8.3 form 1172 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "@echo %~s1" ) 1173 execute_process( COMMAND "$ENV{ComSpec}" /c "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "${ANDROID_SYSROOT}" 1174 OUTPUT_VARIABLE __path OUTPUT_STRIP_TRAILING_WHITESPACE 1175 RESULT_VARIABLE __result ERROR_QUIET ) 1176 if( __result EQUAL 0 ) 1177 file( TO_CMAKE_PATH "${__path}" ANDROID_SYSROOT ) 1178 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1179 else() 1180 set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) 1181 endif() 1182 else() 1183 set( ANDROID_CXX_FLAGS "'--sysroot=${ANDROID_SYSROOT}'" ) 1184 endif() 1185 if( NOT _CMAKE_IN_TRY_COMPILE ) 1186 # quotes can break try_compile and compiler identification 1187 message(WARNING "Path to your Android NDK (or toolchain) has non-alphanumeric symbols.\nThe build might be broken.\n") 1188 endif() 1189 else() 1190 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1191 endif() 1192 1193 # NDK flags 1194 if (ARM64_V8A ) 1195 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1196 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1197 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1198 if( NOT ANDROID_COMPILER_IS_CLANG ) 1199 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1200 endif() 1201 elseif( ARMEABI OR ARMEABI_V7A) 1202 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1203 if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) 1204 set( ANDROID_CXX_FLAGS_RELEASE "-mthumb -fomit-frame-pointer -fno-strict-aliasing" ) 1205 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1206 if( NOT ANDROID_COMPILER_IS_CLANG ) 1207 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -finline-limit=64" ) 1208 endif() 1209 else() 1210 # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI 1211 set( ANDROID_CXX_FLAGS_RELEASE "-marm -fomit-frame-pointer -fstrict-aliasing" ) 1212 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1213 if( NOT ANDROID_COMPILER_IS_CLANG ) 1214 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1215 endif() 1216 endif() 1217 elseif( X86 OR X86_64 ) 1218 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1219 if( NOT ANDROID_COMPILER_IS_CLANG ) 1220 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1221 endif() 1222 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1223 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1224 elseif( MIPS OR MIPS64 ) 1225 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-strict-aliasing -finline-functions -funwind-tables -fmessage-length=0" ) 1226 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer" ) 1227 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer" ) 1228 if( NOT ANDROID_COMPILER_IS_CLANG ) 1229 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" ) 1230 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1231 endif() 1232 elseif() 1233 set( ANDROID_CXX_FLAGS_RELEASE "" ) 1234 set( ANDROID_CXX_FLAGS_DEBUG "" ) 1235 endif() 1236 1237 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) # good/necessary when porting desktop libraries 1238 1239 if( NOT X86 AND NOT ANDROID_COMPILER_IS_CLANG ) 1240 set( ANDROID_CXX_FLAGS "-Wno-psabi ${ANDROID_CXX_FLAGS}" ) 1241 endif() 1242 1243 if( NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.6" ) 1244 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -no-canonical-prefixes" ) # see https://android-review.googlesource.com/#/c/47564/ 1245 endif() 1246 1247 # ABI-specific flags 1248 if( ARMEABI_V7A ) 1249 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) 1250 if( NEON ) 1251 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" ) 1252 elseif( VFPV3 ) 1253 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" ) 1254 else() 1255 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" ) 1256 endif() 1257 elseif( ARMEABI_V6 ) 1258 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) # vfp == vfpv2 1259 elseif( ARMEABI ) 1260 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) 1261 endif() 1262 1263 if( ANDROID_STL MATCHES "gnustl" AND (EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}") ) 1264 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>" ) 1265 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>" ) 1266 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1267 else() 1268 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>" ) 1269 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>" ) 1270 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1271 endif() 1272 1273 # STL 1274 if( EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}" ) 1275 if( EXISTS "${__libstl}" ) 1276 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libstl}\"" ) 1277 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libstl}\"" ) 1278 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libstl}\"" ) 1279 endif() 1280 if( EXISTS "${__libsupcxx}" ) 1281 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1282 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1283 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1284 # C objects: 1285 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>" ) 1286 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>" ) 1287 set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1288 set( CMAKE_C_CREATE_SHARED_LIBRARY "${CMAKE_C_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1289 set( CMAKE_C_CREATE_SHARED_MODULE "${CMAKE_C_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1290 set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1291 endif() 1292 if( ANDROID_STL MATCHES "gnustl" ) 1293 if( NOT EXISTS "${ANDROID_LIBM_PATH}" ) 1294 set( ANDROID_LIBM_PATH -lm ) 1295 endif() 1296 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} ${ANDROID_LIBM_PATH}" ) 1297 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} ${ANDROID_LIBM_PATH}" ) 1298 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIBM_PATH}" ) 1299 endif() 1300 endif() 1301 1302 # variables controlling optional build flags 1303 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1304 # libGLESv2.so in NDK's prior to r7 refers to missing external symbols. 1305 # So this flag option is required for all projects using OpenGL from native. 1306 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON ) 1307 else() 1308 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF ) 1309 endif() 1310 __INIT_VARIABLE( ANDROID_NO_UNDEFINED VALUES ON ) 1311 __INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON ) 1312 __INIT_VARIABLE( ANDROID_GOLD_LINKER VALUES ON ) 1313 __INIT_VARIABLE( ANDROID_NOEXECSTACK VALUES ON ) 1314 __INIT_VARIABLE( ANDROID_RELRO VALUES ON ) 1315 1316 set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" ) 1317 set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1318 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" ) 1319 set( ANDROID_GOLD_LINKER ${ANDROID_GOLD_LINKER} CACHE BOOL "Enables gold linker" ) 1320 set( ANDROID_NOEXECSTACK ${ANDROID_NOEXECSTACK} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1321 set( ANDROID_RELRO ${ANDROID_RELRO} CACHE BOOL "Enables RELRO - a memory corruption mitigation technique" ) 1322 mark_as_advanced( ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO ) 1323 1324 # linker flags 1325 set( ANDROID_LINKER_FLAGS "" ) 1326 1327 if( ARMEABI_V7A ) 1328 # this is *required* to use the following linker flags that routes around 1329 # a CPU bug in some Cortex-A8 implementations: 1330 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--fix-cortex-a8" ) 1331 endif() 1332 1333 if( ANDROID_NO_UNDEFINED ) 1334 if( MIPS ) 1335 # there is some sysroot-related problem in mips linker... 1336 if( NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1337 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined -Wl,-rpath-link,${ANDROID_SYSROOT}/usr/lib" ) 1338 endif() 1339 else() 1340 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined" ) 1341 endif() 1342 endif() 1343 1344 if( ANDROID_SO_UNDEFINED ) 1345 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) 1346 endif() 1347 1348 if( ANDROID_FUNCTION_LEVEL_LINKING ) 1349 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" ) 1350 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" ) 1351 endif() 1352 1353 if( ANDROID_COMPILER_VERSION VERSION_EQUAL "4.6" ) 1354 if( ANDROID_GOLD_LINKER AND (CMAKE_HOST_UNIX OR ANDROID_NDK_RELEASE_NUM GREATER 8002) AND (ARMEABI OR ARMEABI_V7A OR X86) ) 1355 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold" ) 1356 elseif( ANDROID_NDK_RELEASE_NUM GREATER 8002 ) # after r8b 1357 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=bfd" ) 1358 elseif( ANDROID_NDK_RELEASE STREQUAL "r8b" AND ARMEABI AND NOT _CMAKE_IN_TRY_COMPILE ) 1359 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 1360 On Linux and OS X host platform you can workaround this problem using gold linker (default). 1361 Rerun cmake with -DANDROID_GOLD_LINKER=ON option in case of problems. 1362 " ) 1363 endif() 1364 endif() # version 4.6 1365 1366 if( ANDROID_NOEXECSTACK ) 1367 if( ANDROID_COMPILER_IS_CLANG ) 1368 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Xclang -mnoexecstack" ) 1369 else() 1370 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Wa,--noexecstack" ) 1371 endif() 1372 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,noexecstack" ) 1373 endif() 1374 1375 if( ANDROID_RELRO ) 1376 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now" ) 1377 endif() 1378 1379 if( ANDROID_COMPILER_IS_CLANG ) 1380 set( ANDROID_CXX_FLAGS "-target ${ANDROID_LLVM_TRIPLE} -Qunused-arguments ${ANDROID_CXX_FLAGS}" ) 1381 if( BUILD_WITH_ANDROID_NDK ) 1382 set( ANDROID_CXX_FLAGS "-gcc-toolchain ${ANDROID_TOOLCHAIN_ROOT} ${ANDROID_CXX_FLAGS}" ) 1383 endif() 1384 endif() 1385 1386 # cache flags 1387 set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" ) 1388 set( CMAKE_C_FLAGS "" CACHE STRING "c flags" ) 1389 set( CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c++ Release flags" ) 1390 set( CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c Release flags" ) 1391 set( CMAKE_CXX_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c++ Debug flags" ) 1392 set( CMAKE_C_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c Debug flags" ) 1393 set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags" ) 1394 set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags" ) 1395 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags" ) 1396 1397 # put flags to cache (for debug purpose only) 1398 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Android specific c/c++ flags" ) 1399 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE}" CACHE INTERNAL "Android specific c/c++ Release flags" ) 1400 set( ANDROID_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG}" CACHE INTERNAL "Android specific c/c++ Debug flags" ) 1401 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Android specific c/c++ linker flags" ) 1402 1403 # finish flags 1404 set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) 1405 set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) 1406 set( CMAKE_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}" ) 1407 set( CMAKE_C_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}" ) 1408 set( CMAKE_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}" ) 1409 set( CMAKE_C_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}" ) 1410 set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" ) 1411 set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" ) 1412 set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" ) 1413 1414 if( MIPS AND BUILD_WITH_ANDROID_NDK AND ANDROID_NDK_RELEASE STREQUAL "r8" ) 1415 set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_SHARED_LINKER_FLAGS}" ) 1416 set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_MODULE_LINKER_FLAGS}" ) 1417 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.x ${CMAKE_EXE_LINKER_FLAGS}" ) 1418 endif() 1419 1420 # pie/pic 1421 if( NOT (ANDROID_NATIVE_API_LEVEL LESS 16) AND (NOT DEFINED ANDROID_APP_PIE OR ANDROID_APP_PIE) AND (CMAKE_VERSION VERSION_GREATER 2.8.8) ) 1422 set( CMAKE_POSITION_INDEPENDENT_CODE TRUE ) 1423 set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE -pie") 1424 else() 1425 set( CMAKE_POSITION_INDEPENDENT_CODE FALSE ) 1426 set( CMAKE_CXX_FLAGS "-fpic ${CMAKE_CXX_FLAGS}" ) 1427 set( CMAKE_C_FLAGS "-fpic ${CMAKE_C_FLAGS}" ) 1428 endif() 1429 1430 # configure rtti 1431 if( DEFINED ANDROID_RTTI AND ANDROID_STL_FORCE_FEATURES ) 1432 if( ANDROID_RTTI ) 1433 set( CMAKE_CXX_FLAGS "-frtti ${CMAKE_CXX_FLAGS}" ) 1434 else() 1435 set( CMAKE_CXX_FLAGS "-fno-rtti ${CMAKE_CXX_FLAGS}" ) 1436 endif() 1437 endif() 1438 1439 # configure exceptios 1440 if( DEFINED ANDROID_EXCEPTIONS AND ANDROID_STL_FORCE_FEATURES ) 1441 if( ANDROID_EXCEPTIONS ) 1442 set( CMAKE_CXX_FLAGS "-fexceptions ${CMAKE_CXX_FLAGS}" ) 1443 set( CMAKE_C_FLAGS "-fexceptions ${CMAKE_C_FLAGS}" ) 1444 else() 1445 set( CMAKE_CXX_FLAGS "-fno-exceptions ${CMAKE_CXX_FLAGS}" ) 1446 set( CMAKE_C_FLAGS "-fno-exceptions ${CMAKE_C_FLAGS}" ) 1447 endif() 1448 endif() 1449 1450 # global includes and link directories 1451 include_directories( SYSTEM "${ANDROID_SYSROOT}/usr/include" ${ANDROID_STL_INCLUDE_DIRS} ) 1452 get_filename_component(__android_install_path "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ABSOLUTE) # avoid CMP0015 policy warning 1453 link_directories( "${__android_install_path}" ) 1454 1455 # detect if need link crtbegin_so.o explicitly 1456 if( NOT DEFINED ANDROID_EXPLICIT_CRT_LINK ) 1457 set( __cmd "${CMAKE_CXX_CREATE_SHARED_LIBRARY}" ) 1458 string( REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}" __cmd "${__cmd}" ) 1459 string( REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" __cmd "${__cmd}" ) 1460 string( REPLACE "<CMAKE_SHARED_LIBRARY_CXX_FLAGS>" "${CMAKE_CXX_FLAGS}" __cmd "${__cmd}" ) 1461 string( REPLACE "<LANGUAGE_COMPILE_FLAGS>" "" __cmd "${__cmd}" ) 1462 string( REPLACE "<LINK_FLAGS>" "${CMAKE_SHARED_LINKER_FLAGS}" __cmd "${__cmd}" ) 1463 string( REPLACE "<CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>" "-shared" __cmd "${__cmd}" ) 1464 string( REPLACE "<CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG>" "" __cmd "${__cmd}" ) 1465 string( REPLACE "<TARGET_SONAME>" "" __cmd "${__cmd}" ) 1466 string( REPLACE "<TARGET>" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain_crtlink_test.so" __cmd "${__cmd}" ) 1467 string( REPLACE "<OBJECTS>" "\"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" __cmd "${__cmd}" ) 1468 string( REPLACE "<LINK_LIBRARIES>" "" __cmd "${__cmd}" ) 1469 separate_arguments( __cmd ) 1470 foreach( __var ANDROID_NDK ANDROID_NDK_TOOLCHAINS_PATH ANDROID_STANDALONE_TOOLCHAIN ) 1471 if( ${__var} ) 1472 set( __tmp "${${__var}}" ) 1473 separate_arguments( __tmp ) 1474 string( REPLACE "${__tmp}" "${${__var}}" __cmd "${__cmd}") 1475 endif() 1476 endforeach() 1477 string( REPLACE "'" "" __cmd "${__cmd}" ) 1478 string( REPLACE "\"" "" __cmd "${__cmd}" ) 1479 execute_process( COMMAND ${__cmd} RESULT_VARIABLE __cmd_result OUTPUT_QUIET ERROR_QUIET ) 1480 if( __cmd_result EQUAL 0 ) 1481 set( ANDROID_EXPLICIT_CRT_LINK ON ) 1482 else() 1483 set( ANDROID_EXPLICIT_CRT_LINK OFF ) 1484 endif() 1485 endif() 1486 1487 if( ANDROID_EXPLICIT_CRT_LINK ) 1488 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1489 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1490 endif() 1491 1492 # setup output directories 1493 set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) 1494 1495 if( DEFINED LIBRARY_OUTPUT_PATH_ROOT 1496 OR EXISTS "${CMAKE_SOURCE_DIR}/AndroidManifest.xml" 1497 OR (EXISTS "${CMAKE_SOURCE_DIR}/../AndroidManifest.xml" AND EXISTS "${CMAKE_SOURCE_DIR}/../jni/") ) 1498 set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "Root for binaries output, set this to change where Android libs are installed to" ) 1499 if( NOT _CMAKE_IN_TRY_COMPILE ) 1500 if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) 1501 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" ) 1502 else() 1503 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" ) 1504 endif() 1505 set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for Android libs" ) 1506 endif() 1507 endif() 1508 1509 # copy shaed stl library to build directory 1510 if( NOT _CMAKE_IN_TRY_COMPILE AND __libstl MATCHES "[.]so$" AND DEFINED LIBRARY_OUTPUT_PATH ) 1511 get_filename_component( __libstlname "${__libstl}" NAME ) 1512 execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${__libstl}" "${LIBRARY_OUTPUT_PATH}/${__libstlname}" RESULT_VARIABLE __fileCopyProcess ) 1513 if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${LIBRARY_OUTPUT_PATH}/${__libstlname}") 1514 message( SEND_ERROR "Failed copying of ${__libstl} to the ${LIBRARY_OUTPUT_PATH}/${__libstlname}" ) 1515 endif() 1516 unset( __fileCopyProcess ) 1517 unset( __libstlname ) 1518 endif() 1519 1520 1521 # set these global flags for cmake client scripts to change behavior 1522 set( ANDROID True ) 1523 set( BUILD_ANDROID True ) 1524 1525 # where is the target environment 1526 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" ) 1527 1528 # only search for libraries and includes in the ndk toolchain 1529 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1530 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1531 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1532 1533 1534 # macro to find packages on the host OS 1535 macro( find_host_package ) 1536 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1537 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1538 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1539 if( CMAKE_HOST_WIN32 ) 1540 SET( WIN32 1 ) 1541 SET( UNIX ) 1542 elseif( CMAKE_HOST_APPLE ) 1543 SET( APPLE 1 ) 1544 SET( UNIX ) 1545 endif() 1546 find_package( ${ARGN} ) 1547 SET( WIN32 ) 1548 SET( APPLE ) 1549 SET( UNIX 1 ) 1550 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1551 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1552 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1553 endmacro() 1554 1555 1556 # macro to find programs on the host OS 1557 macro( find_host_program ) 1558 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1559 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1560 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1561 if( CMAKE_HOST_WIN32 ) 1562 SET( WIN32 1 ) 1563 SET( UNIX ) 1564 elseif( CMAKE_HOST_APPLE ) 1565 SET( APPLE 1 ) 1566 SET( UNIX ) 1567 endif() 1568 find_program( ${ARGN} ) 1569 SET( WIN32 ) 1570 SET( APPLE ) 1571 SET( UNIX 1 ) 1572 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1573 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1574 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1575 endmacro() 1576 1577 1578 # export toolchain settings for the try_compile() command 1579 if( NOT _CMAKE_IN_TRY_COMPILE ) 1580 set( __toolchain_config "") 1581 foreach( __var NDK_CCACHE LIBRARY_OUTPUT_PATH_ROOT ANDROID_FORBID_SYGWIN 1582 ANDROID_NDK_HOST_X64 1583 ANDROID_NDK 1584 ANDROID_NDK_LAYOUT 1585 ANDROID_STANDALONE_TOOLCHAIN 1586 ANDROID_TOOLCHAIN_NAME 1587 ANDROID_ABI 1588 ANDROID_NATIVE_API_LEVEL 1589 ANDROID_STL 1590 ANDROID_STL_FORCE_FEATURES 1591 ANDROID_FORCE_ARM_BUILD 1592 ANDROID_NO_UNDEFINED 1593 ANDROID_SO_UNDEFINED 1594 ANDROID_FUNCTION_LEVEL_LINKING 1595 ANDROID_GOLD_LINKER 1596 ANDROID_NOEXECSTACK 1597 ANDROID_RELRO 1598 ANDROID_LIBM_PATH 1599 ANDROID_EXPLICIT_CRT_LINK 1600 ANDROID_APP_PIE 1601 ) 1602 if( DEFINED ${__var} ) 1603 if( ${__var} MATCHES " ") 1604 set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" ) 1605 else() 1606 set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" ) 1607 endif() 1608 endif() 1609 endforeach() 1610 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" ) 1611 unset( __toolchain_config ) 1612 endif() 1613 1614 1615 # force cmake to produce / instead of \ in build commands for Ninja generator 1616 if( CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_HOST_WIN32 ) 1617 # it is a bad hack after all 1618 # CMake generates Ninja makefiles with UNIX paths only if it thinks that we are going to build with MinGW 1619 set( CMAKE_COMPILER_IS_MINGW TRUE ) # tell CMake that we are MinGW 1620 set( CMAKE_CROSSCOMPILING TRUE ) # stop recursion 1621 enable_language( C ) 1622 enable_language( CXX ) 1623 # unset( CMAKE_COMPILER_IS_MINGW ) # can't unset because CMake does not convert back-slashes in response files without it 1624 unset( MINGW ) 1625 endif() 1626 1627 1628 # Variables controlling behavior or set by cmake toolchain: 1629 # ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86", "mips", "arm64-v8a", "x86_64", "mips64" 1630 # ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14,15,16,17,18,19,21 (depends on NDK version) 1631 # ANDROID_STL : gnustl_static/gnustl_shared/stlport_static/stlport_shared/gabi++_static/gabi++_shared/system_re/system/none 1632 # ANDROID_FORBID_SYGWIN : ON/OFF 1633 # ANDROID_NO_UNDEFINED : ON/OFF 1634 # ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version) 1635 # ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF 1636 # ANDROID_GOLD_LINKER : ON/OFF 1637 # ANDROID_NOEXECSTACK : ON/OFF 1638 # ANDROID_RELRO : ON/OFF 1639 # ANDROID_FORCE_ARM_BUILD : ON/OFF 1640 # ANDROID_STL_FORCE_FEATURES : ON/OFF 1641 # 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` 1642 # Can be set only at the first run: 1643 # ANDROID_NDK : path to your NDK install 1644 # NDK_CCACHE : path to your ccache executable 1645 # ANDROID_TOOLCHAIN_NAME : the NDK name of compiler toolchain 1646 # ANDROID_NDK_HOST_X64 : try to use x86_64 toolchain (default for x64 host systems) 1647 # ANDROID_NDK_LAYOUT : the inner NDK structure (RELEASE, LINARO, ANDROID) 1648 # LIBRARY_OUTPUT_PATH_ROOT : <any valid path> 1649 # ANDROID_STANDALONE_TOOLCHAIN 1650 # 1651 # Primary read-only variables: 1652 # ANDROID : always TRUE 1653 # ARMEABI : TRUE for arm v6 and older devices 1654 # ARMEABI_V6 : TRUE for arm v6 1655 # ARMEABI_V7A : TRUE for arm v7a 1656 # ARM64_V8A : TRUE for arm64-v8a 1657 # NEON : TRUE if NEON unit is enabled 1658 # VFPV3 : TRUE if VFP version 3 is enabled 1659 # X86 : TRUE if configured for x86 1660 # X86_64 : TRUE if configured for x86_64 1661 # MIPS : TRUE if configured for mips 1662 # MIPS64 : TRUE if configured for mips64 1663 # BUILD_WITH_ANDROID_NDK : TRUE if NDK is used 1664 # BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used 1665 # ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform 1666 # ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a", "x86", "mips", "arm64-v8a", "x86_64", "mips64" depending on ANDROID_ABI 1667 # ANDROID_NDK_RELEASE : from r5 to r10d; set only for NDK 1668 # ANDROID_NDK_RELEASE_NUM : numeric ANDROID_NDK_RELEASE version (1000*major+minor) 1669 # ANDROID_ARCH_NAME : "arm", "x86", "mips", "arm64", "x86_64", "mips64" depending on ANDROID_ABI 1670 # ANDROID_SYSROOT : path to the compiler sysroot 1671 # TOOL_OS_SUFFIX : "" or ".exe" depending on host platform 1672 # ANDROID_COMPILER_IS_CLANG : TRUE if clang compiler is used 1673 # 1674 # Secondary (less stable) read-only variables: 1675 # ANDROID_COMPILER_VERSION : GCC version used (not Clang version) 1676 # ANDROID_CLANG_VERSION : version of clang compiler if clang is used 1677 # ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform 1678 # ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI 1679 # ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux" 1680 # ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK) 1681 # ANDROID_CLANG_TOOLCHAIN_ROOT : path to clang tools 1682 # ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK 1683 # ANDROID_STL_INCLUDE_DIRS : stl include paths 1684 # ANDROID_RTTI : if rtti is enabled by the runtime 1685 # ANDROID_EXCEPTIONS : if exceptions are enabled by the runtime 1686 # ANDROID_GCC_TOOLCHAIN_NAME : read-only, differs from ANDROID_TOOLCHAIN_NAME only if clang is used 1687 # 1688 # Defaults: 1689 # ANDROID_DEFAULT_NDK_API_LEVEL 1690 # ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} 1691 # ANDROID_NDK_SEARCH_PATHS 1692 # ANDROID_SUPPORTED_ABIS_${ARCH} 1693 # ANDROID_SUPPORTED_NDK_VERSIONS 1694
