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 (2.8.5 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 Linux (using standalone toolchain): 43 # $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain 44 # $ mkdir build && cd build 45 # $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake .. 46 # $ make -j8 47 # 48 # Usage Windows: 49 # You need native port of make to build your project. 50 # Android NDK r7 (and newer) already has make.exe on board. 51 # For older NDK you have to install it separately. 52 # For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm 53 # 54 # $ SET ANDROID_NDK=C:\absolute\path\to\the\android-ndk 55 # $ mkdir build && cd build 56 # $ cmake.exe -G"MinGW Makefiles" 57 # -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake 58 # -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows\bin\make.exe" .. 59 # $ cmake.exe --build . 60 # 61 # 62 # Options (can be set as cmake parameters: -D<option_name>=<value>): 63 # ANDROID_NDK=/opt/android-ndk - path to the NDK root. 64 # Can be set as environment variable. Can be set only at first cmake run. 65 # 66 # ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the 67 # standalone toolchain. This option is not used if full NDK is found 68 # (ignored if ANDROID_NDK is set). 69 # Can be set as environment variable. Can be set only at first cmake run. 70 # 71 # ANDROID_ABI=armeabi-v7a - specifies the target Application Binary 72 # Interface (ABI). This option nearly matches to the APP_ABI variable 73 # used by ndk-build tool from Android NDK. 74 # 75 # Possible targets are: 76 # "armeabi" - ARMv5TE based CPU with software floating point operations 77 # "armeabi-v7a" - ARMv7 based devices with hardware FPU instructions 78 # this ABI target is used by default 79 # "armeabi-v7a with NEON" - same as armeabi-v7a, but 80 # sets NEON as floating-point unit 81 # "armeabi-v7a with VFPV3" - same as armeabi-v7a, but 82 # sets VFPV3 as floating-point unit (has 32 registers instead of 16) 83 # "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP 84 # "x86" - IA-32 instruction set 85 # "mips" - MIPS32 instruction set 86 # 87 # 64-bit ABIs for NDK r10 and newer: 88 # "arm64-v8a" - ARMv8 AArch64 instruction set 89 # "x86_64" - Intel64 instruction set (r1) 90 # "mips64" - MIPS64 instruction set (r6) 91 # 92 # ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for. 93 # Option is read-only when standalone toolchain is used. 94 # Note: building for "android-L" requires explicit configuration. 95 # 96 # ANDROID_TOOLCHAIN_NAME=arm-linux-androideabi-4.9 - the name of compiler 97 # toolchain to be used. The list of possible values depends on the NDK 98 # version. For NDK r10c the possible values are: 99 # 100 # * aarch64-linux-android-4.9 101 # * aarch64-linux-android-clang3.4 102 # * aarch64-linux-android-clang3.5 103 # * arm-linux-androideabi-4.6 104 # * arm-linux-androideabi-4.8 105 # * arm-linux-androideabi-4.9 (default) 106 # * arm-linux-androideabi-clang3.4 107 # * arm-linux-androideabi-clang3.5 108 # * mips64el-linux-android-4.9 109 # * mips64el-linux-android-clang3.4 110 # * mips64el-linux-android-clang3.5 111 # * mipsel-linux-android-4.6 112 # * mipsel-linux-android-4.8 113 # * mipsel-linux-android-4.9 114 # * mipsel-linux-android-clang3.4 115 # * mipsel-linux-android-clang3.5 116 # * x86-4.6 117 # * x86-4.8 118 # * x86-4.9 119 # * x86-clang3.4 120 # * x86-clang3.5 121 # * x86_64-4.9 122 # * x86_64-clang3.4 123 # * x86_64-clang3.5 124 # 125 # ANDROID_FORCE_ARM_BUILD=OFF - set ON to generate 32-bit ARM instructions 126 # instead of Thumb. Is not available for "x86" (inapplicable) and 127 # "armeabi-v6 with VFP" (is forced to be ON) ABIs. 128 # 129 # ANDROID_NO_UNDEFINED=ON - set ON to show all undefined symbols as linker 130 # errors even if they are not used. 131 # 132 # ANDROID_SO_UNDEFINED=OFF - set ON to allow undefined symbols in shared 133 # libraries. Automatically turned for NDK r5x and r6x due to GLESv2 134 # problems. 135 # 136 # LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary 137 # files. See additional details below. 138 # 139 # ANDROID_SET_OBSOLETE_VARIABLES=ON - if set, then toolchain defines some 140 # obsolete variables which were used by previous versions of this file for 141 # backward compatibility. 142 # 143 # ANDROID_STL=gnustl_static - specify the runtime to use. 144 # 145 # Possible values are: 146 # none -> Do not configure the runtime. 147 # system -> Use the default minimal system C++ runtime library. 148 # Implies -fno-rtti -fno-exceptions. 149 # Is not available for standalone toolchain. 150 # system_re -> Use the default minimal system C++ runtime library. 151 # Implies -frtti -fexceptions. 152 # Is not available for standalone toolchain. 153 # gabi++_static -> Use the GAbi++ runtime as a static library. 154 # Implies -frtti -fno-exceptions. 155 # Available for NDK r7 and newer. 156 # Is not available for standalone toolchain. 157 # gabi++_shared -> Use the GAbi++ runtime as a shared library. 158 # Implies -frtti -fno-exceptions. 159 # Available for NDK r7 and newer. 160 # Is not available for standalone toolchain. 161 # stlport_static -> Use the STLport runtime as a static library. 162 # Implies -fno-rtti -fno-exceptions for NDK before r7. 163 # Implies -frtti -fno-exceptions for NDK r7 and newer. 164 # Is not available for standalone toolchain. 165 # stlport_shared -> Use the STLport runtime as a shared library. 166 # Implies -fno-rtti -fno-exceptions for NDK before r7. 167 # Implies -frtti -fno-exceptions for NDK r7 and newer. 168 # Is not available for standalone toolchain. 169 # gnustl_static -> Use the GNU STL as a static library. 170 # Implies -frtti -fexceptions. 171 # gnustl_shared -> Use the GNU STL as a shared library. 172 # Implies -frtti -fno-exceptions. 173 # Available for NDK r7b and newer. 174 # Silently degrades to gnustl_static if not available. 175 # 176 # ANDROID_STL_FORCE_FEATURES=ON - turn rtti and exceptions support based on 177 # chosen runtime. If disabled, then the user is responsible for settings 178 # these options. 179 # 180 # What?: 181 # android-cmake toolchain searches for NDK/toolchain in the following order: 182 # ANDROID_NDK - cmake parameter 183 # ANDROID_NDK - environment variable 184 # ANDROID_STANDALONE_TOOLCHAIN - cmake parameter 185 # ANDROID_STANDALONE_TOOLCHAIN - environment variable 186 # ANDROID_NDK - default locations 187 # ANDROID_STANDALONE_TOOLCHAIN - default locations 188 # 189 # Make sure to do the following in your scripts: 190 # SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" ) 191 # SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" ) 192 # The flags will be prepopulated with critical flags, so don't loose them. 193 # Also be aware that toolchain also sets configuration-specific compiler 194 # flags and linker flags. 195 # 196 # ANDROID and BUILD_ANDROID will be set to true, you may test any of these 197 # variables to make necessary Android-specific configuration changes. 198 # 199 # Also ARMEABI or ARMEABI_V7A or X86 or MIPS or ARM64_V8A or X86_64 or MIPS64 200 # will be set true, mutually exclusive. NEON option will be set true 201 # if VFP is set to NEON. 202 # 203 # LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android 204 # libraries will be installed. 205 # Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be 206 # under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME} 207 # (depending on the target ABI). This is convenient for Android packaging. 208 # 209 # ------------------------------------------------------------------------------ 210 211 cmake_minimum_required( VERSION 2.6.3 ) 212 213 if( DEFINED CMAKE_CROSSCOMPILING ) 214 # subsequent toolchain loading is not really needed 215 return() 216 endif() 217 218 if( CMAKE_TOOLCHAIN_FILE ) 219 # touch toolchain variable to suppress "unused variable" warning 220 endif() 221 222 # inherit settings in recursive loads 223 get_property( _CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE ) 224 if( _CMAKE_IN_TRY_COMPILE ) 225 include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL ) 226 endif() 227 228 # this one is important 229 if( CMAKE_VERSION VERSION_GREATER "3.0.99" ) 230 set( CMAKE_SYSTEM_NAME Android ) 231 else() 232 set( CMAKE_SYSTEM_NAME Linux ) 233 endif() 234 235 # this one not so much 236 set( CMAKE_SYSTEM_VERSION 1 ) 237 238 # rpath makes low sence for Android 239 set( CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "" ) 240 set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." ) 241 242 # NDK search paths 243 set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r10d -r10c -r10b -r10 -r9d -r9c -r9b -r9 -r8e -r8d -r8c -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) 244 if(NOT DEFINED ANDROID_NDK_SEARCH_PATHS) 245 if( CMAKE_HOST_WIN32 ) 246 file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS ) 247 set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" ) 248 else() 249 file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS ) 250 set( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "${ANDROID_NDK_SEARCH_PATHS}/NVPACK/android-ndk" ) 251 endif() 252 endif() 253 if(NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH) 254 set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain ) 255 endif() 256 257 # known ABIs 258 set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" ) 259 set( ANDROID_SUPPORTED_ABIS_arm64 "arm64-v8a" ) 260 set( ANDROID_SUPPORTED_ABIS_x86 "x86" ) 261 set( ANDROID_SUPPORTED_ABIS_x86_64 "x86_64" ) 262 set( ANDROID_SUPPORTED_ABIS_mips "mips" ) 263 set( ANDROID_SUPPORTED_ABIS_mips64 "mips64" ) 264 265 # API level defaults 266 set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) 267 set( ANDROID_DEFAULT_NDK_API_LEVEL_arm64 21 ) 268 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) 269 set( ANDROID_DEFAULT_NDK_API_LEVEL_x86_64 21 ) 270 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 ) 271 set( ANDROID_DEFAULT_NDK_API_LEVEL_mips64 21 ) 272 273 274 macro( __LIST_FILTER listvar regex ) 275 if( ${listvar} ) 276 foreach( __val ${${listvar}} ) 277 if( __val MATCHES "${regex}" ) 278 list( REMOVE_ITEM ${listvar} "${__val}" ) 279 endif() 280 endforeach() 281 endif() 282 endmacro() 283 284 macro( __INIT_VARIABLE var_name ) 285 set( __test_path 0 ) 286 foreach( __var ${ARGN} ) 287 if( __var STREQUAL "PATH" ) 288 set( __test_path 1 ) 289 break() 290 endif() 291 endforeach() 292 if( __test_path AND NOT EXISTS "${${var_name}}" ) 293 unset( ${var_name} CACHE ) 294 endif() 295 if( "${${var_name}}" STREQUAL "" ) 296 set( __values 0 ) 297 foreach( __var ${ARGN} ) 298 if( __var STREQUAL "VALUES" ) 299 set( __values 1 ) 300 elseif( NOT __var STREQUAL "PATH" ) 301 set( __obsolete 0 ) 302 if( __var MATCHES "^OBSOLETE_.*$" ) 303 string( REPLACE "OBSOLETE_" "" __var "${__var}" ) 304 set( __obsolete 1 ) 305 endif() 306 if( __var MATCHES "^ENV_.*$" ) 307 string( REPLACE "ENV_" "" __var "${__var}" ) 308 set( __value "$ENV{${__var}}" ) 309 elseif( DEFINED ${__var} ) 310 set( __value "${${__var}}" ) 311 else() 312 if( __values ) 313 set( __value "${__var}" ) 314 else() 315 set( __value "" ) 316 endif() 317 endif() 318 if( NOT "${__value}" STREQUAL "" ) 319 if( __test_path ) 320 if( EXISTS "${__value}" ) 321 file( TO_CMAKE_PATH "${__value}" ${var_name} ) 322 if( __obsolete AND NOT _CMAKE_IN_TRY_COMPILE ) 323 message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) 324 endif() 325 break() 326 endif() 327 else() 328 set( ${var_name} "${__value}" ) 329 if( __obsolete AND NOT _CMAKE_IN_TRY_COMPILE ) 330 message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) 331 endif() 332 break() 333 endif() 334 endif() 335 endif() 336 endforeach() 337 unset( __value ) 338 unset( __values ) 339 unset( __obsolete ) 340 elseif( __test_path ) 341 file( TO_CMAKE_PATH "${${var_name}}" ${var_name} ) 342 endif() 343 unset( __test_path ) 344 endmacro() 345 346 macro( __DETECT_NATIVE_API_LEVEL _var _path ) 347 SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*.*$" ) 348 FILE( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" ) 349 if( NOT __apiFileContent ) 350 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." ) 351 endif() 352 string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" ) 353 unset( __apiFileContent ) 354 unset( __ndkApiLevelRegex ) 355 endmacro() 356 357 macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root ) 358 if( EXISTS "${_root}" ) 359 file( GLOB __gccExePath RELATIVE "${_root}/bin/" "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) 360 __LIST_FILTER( __gccExePath "^[.].*" ) 361 list( LENGTH __gccExePath __gccExePathsCount ) 362 if( NOT __gccExePathsCount EQUAL 1 AND NOT _CMAKE_IN_TRY_COMPILE ) 363 message( WARNING "Could not determine machine name for compiler from ${_root}" ) 364 set( ${_var} "" ) 365 else() 366 get_filename_component( __gccExeName "${__gccExePath}" NAME_WE ) 367 string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" ) 368 endif() 369 unset( __gccExePath ) 370 unset( __gccExePathsCount ) 371 unset( __gccExeName ) 372 else() 373 set( ${_var} "" ) 374 endif() 375 endmacro() 376 377 378 # fight against cygwin 379 set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") 380 mark_as_advanced( ANDROID_FORBID_SYGWIN ) 381 if( ANDROID_FORBID_SYGWIN ) 382 if( CYGWIN ) 383 message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." ) 384 endif() 385 386 if( CMAKE_HOST_WIN32 ) 387 # remove cygwin from PATH 388 set( __new_path "$ENV{PATH}") 389 __LIST_FILTER( __new_path "cygwin" ) 390 set(ENV{PATH} "${__new_path}") 391 unset(__new_path) 392 endif() 393 endif() 394 395 396 # detect current host platform 397 if( NOT DEFINED ANDROID_NDK_HOST_X64 AND (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64" OR CMAKE_HOST_APPLE) ) 398 set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" ) 399 mark_as_advanced( ANDROID_NDK_HOST_X64 ) 400 endif() 401 402 set( TOOL_OS_SUFFIX "" ) 403 if( CMAKE_HOST_APPLE ) 404 set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86_64" ) 405 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "darwin-x86" ) 406 elseif( CMAKE_HOST_WIN32 ) 407 set( ANDROID_NDK_HOST_SYSTEM_NAME "windows-x86_64" ) 408 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "windows" ) 409 set( TOOL_OS_SUFFIX ".exe" ) 410 elseif( CMAKE_HOST_UNIX ) 411 set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86_64" ) 412 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "linux-x86" ) 413 else() 414 message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) 415 endif() 416 417 if( NOT ANDROID_NDK_HOST_X64 ) 418 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) 419 endif() 420 421 # see if we have path to Android NDK 422 __INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK ) 423 if( NOT ANDROID_NDK ) 424 # see if we have path to Android standalone toolchain 425 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT ) 426 427 if( NOT ANDROID_STANDALONE_TOOLCHAIN ) 428 #try to find Android NDK in one of the the default locations 429 set( __ndkSearchPaths ) 430 foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} ) 431 foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} ) 432 list( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" ) 433 endforeach() 434 endforeach() 435 __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} ) 436 unset( __ndkSearchPaths ) 437 438 if( ANDROID_NDK ) 439 message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" ) 440 message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" ) 441 else() 442 #try to find Android standalone toolchain in one of the the default locations 443 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) 444 445 if( ANDROID_STANDALONE_TOOLCHAIN ) 446 message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" ) 447 message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" ) 448 endif( ANDROID_STANDALONE_TOOLCHAIN ) 449 endif( ANDROID_NDK ) 450 endif( NOT ANDROID_STANDALONE_TOOLCHAIN ) 451 endif( NOT ANDROID_NDK ) 452 453 # remember found paths 454 if( ANDROID_NDK ) 455 get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE ) 456 set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" FORCE ) 457 set( BUILD_WITH_ANDROID_NDK True ) 458 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT" ) 459 file( STRINGS "${ANDROID_NDK}/RELEASE.TXT" ANDROID_NDK_RELEASE_FULL LIMIT_COUNT 1 REGEX "r[0-9]+[a-z]?" ) 460 string( REGEX MATCH "r([0-9]+)([a-z]?)" ANDROID_NDK_RELEASE "${ANDROID_NDK_RELEASE_FULL}" ) 461 else() 462 set( ANDROID_NDK_RELEASE "r1x" ) 463 set( ANDROID_NDK_RELEASE_FULL "unreleased" ) 464 endif() 465 string( REGEX REPLACE "r([0-9]+)([a-z]?)" "\\1*1000" ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE}" ) 466 string( FIND " abcdefghijklmnopqastuvwxyz" "${CMAKE_MATCH_2}" __ndkReleaseLetterNum ) 467 math( EXPR ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE_NUM}+${__ndkReleaseLetterNum}" ) 468 elseif( ANDROID_STANDALONE_TOOLCHAIN ) 469 get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE ) 470 # try to detect change 471 if( CMAKE_AR ) 472 string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length ) 473 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath ) 474 if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN ) 475 message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." ) 476 endif() 477 unset( __androidStandaloneToolchainPreviousPath ) 478 unset( __length ) 479 endif() 480 set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" FORCE ) 481 set( BUILD_WITH_STANDALONE_TOOLCHAIN True ) 482 else() 483 list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH) 484 message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolchain. 485 You should either set an environment variable: 486 export ANDROID_NDK=~/my-android-ndk 487 or 488 export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain 489 or put the toolchain or NDK in the default path: 490 sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH} 491 sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) 492 endif() 493 494 # android NDK layout 495 if( BUILD_WITH_ANDROID_NDK ) 496 if( NOT DEFINED ANDROID_NDK_LAYOUT ) 497 # try to automatically detect the layout 498 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT") 499 set( ANDROID_NDK_LAYOUT "RELEASE" ) 500 elseif( EXISTS "${ANDROID_NDK}/../../linux-x86/toolchain/" ) 501 set( ANDROID_NDK_LAYOUT "LINARO" ) 502 elseif( EXISTS "${ANDROID_NDK}/../../gcc/" ) 503 set( ANDROID_NDK_LAYOUT "ANDROID" ) 504 endif() 505 endif() 506 set( ANDROID_NDK_LAYOUT "${ANDROID_NDK_LAYOUT}" CACHE STRING "The inner layout of NDK" ) 507 mark_as_advanced( ANDROID_NDK_LAYOUT ) 508 if( ANDROID_NDK_LAYOUT STREQUAL "LINARO" ) 509 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 510 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../${ANDROID_NDK_HOST_SYSTEM_NAME}/toolchain" ) 511 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 512 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 513 elseif( ANDROID_NDK_LAYOUT STREQUAL "ANDROID" ) 514 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 515 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../gcc/${ANDROID_NDK_HOST_SYSTEM_NAME}/arm" ) 516 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 517 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 518 else() # ANDROID_NDK_LAYOUT STREQUAL "RELEASE" 519 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/toolchains" ) 520 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) 521 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME2}" ) 522 endif() 523 get_filename_component( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK_TOOLCHAINS_PATH}" ABSOLUTE ) 524 525 # try to detect change of NDK 526 if( CMAKE_AR ) 527 string( LENGTH "${ANDROID_NDK_TOOLCHAINS_PATH}" __length ) 528 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) 529 if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK_TOOLCHAINS_PATH ) 530 message( FATAL_ERROR "It is not possible to change the path to the NDK on subsequent CMake run. You must remove all generated files from your build folder first. 531 " ) 532 endif() 533 unset( __androidNdkPreviousPath ) 534 unset( __length ) 535 endif() 536 endif() 537 538 539 # get all the details about standalone toolchain 540 if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 541 __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) 542 set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 543 set( __availableToolchains "standalone" ) 544 __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" ) 545 if( NOT __availableToolchainMachines ) 546 message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." ) 547 endif() 548 if( __availableToolchainMachines MATCHES x86_64 ) 549 set( __availableToolchainArchs "x86_64" ) 550 elseif( __availableToolchainMachines MATCHES i686 ) 551 set( __availableToolchainArchs "x86" ) 552 elseif( __availableToolchainMachines MATCHES aarch64 ) 553 set( __availableToolchainArchs "arm64" ) 554 elseif( __availableToolchainMachines MATCHES arm ) 555 set( __availableToolchainArchs "arm" ) 556 elseif( __availableToolchainMachines MATCHES mips64el ) 557 set( __availableToolchainArchs "mips64" ) 558 elseif( __availableToolchainMachines MATCHES mipsel ) 559 set( __availableToolchainArchs "mips" ) 560 endif() 561 execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" -dumpversion 562 OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) 563 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9]+)?" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) 564 if( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/bin/clang${TOOL_OS_SUFFIX}" ) 565 list( APPEND __availableToolchains "standalone-clang" ) 566 list( APPEND __availableToolchainMachines ${__availableToolchainMachines} ) 567 list( APPEND __availableToolchainArchs ${__availableToolchainArchs} ) 568 list( APPEND __availableToolchainCompilerVersions ${__availableToolchainCompilerVersions} ) 569 endif() 570 endif() 571 572 macro( __GLOB_NDK_TOOLCHAINS __availableToolchainsVar __availableToolchainsLst __toolchain_subpath ) 573 foreach( __toolchain ${${__availableToolchainsLst}} ) 574 if( "${__toolchain}" MATCHES "-clang3[.][0-9]$" AND NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}${__toolchain_subpath}" ) 575 SET( __toolchainVersionRegex "^TOOLCHAIN_VERSION[\t ]+:=[\t ]+(.*)$" ) 576 FILE( STRINGS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}/setup.mk" __toolchainVersionStr REGEX "${__toolchainVersionRegex}" ) 577 if( __toolchainVersionStr ) 578 string( REGEX REPLACE "${__toolchainVersionRegex}" "\\1" __toolchainVersionStr "${__toolchainVersionStr}" ) 579 string( REGEX REPLACE "-clang3[.][0-9]$" "-${__toolchainVersionStr}" __gcc_toolchain "${__toolchain}" ) 580 else() 581 string( REGEX REPLACE "-clang3[.][0-9]$" "-4.6" __gcc_toolchain "${__toolchain}" ) 582 endif() 583 unset( __toolchainVersionStr ) 584 unset( __toolchainVersionRegex ) 585 else() 586 set( __gcc_toolchain "${__toolchain}" ) 587 endif() 588 __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK_TOOLCHAINS_PATH}/${__gcc_toolchain}${__toolchain_subpath}" ) 589 if( __machine ) 590 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9x]+)?$" __version "${__gcc_toolchain}" ) 591 if( __machine MATCHES x86_64 ) 592 set( __arch "x86_64" ) 593 elseif( __machine MATCHES i686 ) 594 set( __arch "x86" ) 595 elseif( __machine MATCHES aarch64 ) 596 set( __arch "arm64" ) 597 elseif( __machine MATCHES arm ) 598 set( __arch "arm" ) 599 elseif( __machine MATCHES mips64el ) 600 set( __arch "mips64" ) 601 elseif( __machine MATCHES mipsel ) 602 set( __arch "mips" ) 603 else() 604 set( __arch "" ) 605 endif() 606 #message("machine: !${__machine}!\narch: !${__arch}!\nversion: !${__version}!\ntoolchain: !${__toolchain}!\n") 607 if (__arch) 608 list( APPEND __availableToolchainMachines "${__machine}" ) 609 list( APPEND __availableToolchainArchs "${__arch}" ) 610 list( APPEND __availableToolchainCompilerVersions "${__version}" ) 611 list( APPEND ${__availableToolchainsVar} "${__toolchain}" ) 612 endif() 613 endif() 614 unset( __gcc_toolchain ) 615 endforeach() 616 endmacro() 617 618 # get all the details about NDK 619 if( BUILD_WITH_ANDROID_NDK ) 620 file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" ) 621 string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) 622 set( __availableToolchains "" ) 623 set( __availableToolchainMachines "" ) 624 set( __availableToolchainArchs "" ) 625 set( __availableToolchainCompilerVersions "" ) 626 if( ANDROID_TOOLCHAIN_NAME AND EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_TOOLCHAIN_NAME}/" ) 627 # do not go through all toolchains if we know the name 628 set( __availableToolchainsLst "${ANDROID_TOOLCHAIN_NAME}" ) 629 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 630 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 631 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 632 if( __availableToolchains ) 633 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 634 endif() 635 endif() 636 endif() 637 if( NOT __availableToolchains ) 638 file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" ) 639 if( __availableToolchains ) 640 list(SORT __availableToolchainsLst) # we need clang to go after gcc 641 endif() 642 __LIST_FILTER( __availableToolchainsLst "^[.]" ) 643 __LIST_FILTER( __availableToolchainsLst "llvm" ) 644 __LIST_FILTER( __availableToolchainsLst "renderscript" ) 645 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 646 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 647 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 648 if( __availableToolchains ) 649 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 650 endif() 651 endif() 652 endif() 653 if( NOT __availableToolchains ) 654 message( FATAL_ERROR "Could not find any working toolchain in the NDK. Probably your Android NDK is broken." ) 655 endif() 656 endif() 657 658 # build list of available ABIs 659 set( ANDROID_SUPPORTED_ABIS "" ) 660 set( __uniqToolchainArchNames ${__availableToolchainArchs} ) 661 list( REMOVE_DUPLICATES __uniqToolchainArchNames ) 662 list( SORT __uniqToolchainArchNames ) 663 foreach( __arch ${__uniqToolchainArchNames} ) 664 list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} ) 665 endforeach() 666 unset( __uniqToolchainArchNames ) 667 if( NOT ANDROID_SUPPORTED_ABIS ) 668 message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." ) 669 endif() 670 671 # choose target ABI 672 __INIT_VARIABLE( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ANDROID_SUPPORTED_ABIS} ) 673 # verify that target ABI is supported 674 list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx ) 675 if( __androidAbiIdx EQUAL -1 ) 676 string( REPLACE ";" "\", \"" PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" ) 677 message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain. 678 Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\" 679 " ) 680 endif() 681 unset( __androidAbiIdx ) 682 683 # set target ABI options 684 if( ANDROID_ABI STREQUAL "x86" ) 685 set( X86 true ) 686 set( ANDROID_NDK_ABI_NAME "x86" ) 687 set( ANDROID_ARCH_NAME "x86" ) 688 set( ANDROID_LLVM_TRIPLE "i686-none-linux-android" ) 689 set( CMAKE_SYSTEM_PROCESSOR "i686" ) 690 elseif( ANDROID_ABI STREQUAL "x86_64" ) 691 set( X86 true ) 692 set( X86_64 true ) 693 set( ANDROID_NDK_ABI_NAME "x86_64" ) 694 set( ANDROID_ARCH_NAME "x86_64" ) 695 set( CMAKE_SYSTEM_PROCESSOR "x86_64" ) 696 set( ANDROID_LLVM_TRIPLE "x86_64-none-linux-android" ) 697 elseif( ANDROID_ABI STREQUAL "mips64" ) 698 set( MIPS64 true ) 699 set( ANDROID_NDK_ABI_NAME "mips64" ) 700 set( ANDROID_ARCH_NAME "mips64" ) 701 set( ANDROID_LLVM_TRIPLE "mips64el-none-linux-android" ) 702 set( CMAKE_SYSTEM_PROCESSOR "mips64" ) 703 elseif( ANDROID_ABI STREQUAL "mips" ) 704 set( MIPS true ) 705 set( ANDROID_NDK_ABI_NAME "mips" ) 706 set( ANDROID_ARCH_NAME "mips" ) 707 set( ANDROID_LLVM_TRIPLE "mipsel-none-linux-android" ) 708 set( CMAKE_SYSTEM_PROCESSOR "mips" ) 709 elseif( ANDROID_ABI STREQUAL "arm64-v8a" ) 710 set( ARM64_V8A true ) 711 set( ANDROID_NDK_ABI_NAME "arm64-v8a" ) 712 set( ANDROID_ARCH_NAME "arm64" ) 713 set( ANDROID_LLVM_TRIPLE "aarch64-none-linux-android" ) 714 set( CMAKE_SYSTEM_PROCESSOR "aarch64" ) 715 set( VFPV3 true ) 716 set( NEON true ) 717 elseif( ANDROID_ABI STREQUAL "armeabi" ) 718 set( ARMEABI true ) 719 set( ANDROID_NDK_ABI_NAME "armeabi" ) 720 set( ANDROID_ARCH_NAME "arm" ) 721 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 722 set( CMAKE_SYSTEM_PROCESSOR "armv5te" ) 723 elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" ) 724 set( ARMEABI_V6 true ) 725 set( ANDROID_NDK_ABI_NAME "armeabi" ) 726 set( ANDROID_ARCH_NAME "arm" ) 727 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 728 set( CMAKE_SYSTEM_PROCESSOR "armv6" ) 729 # need always fallback to older platform 730 set( ARMEABI true ) 731 elseif( ANDROID_ABI STREQUAL "armeabi-v7a") 732 set( ARMEABI_V7A true ) 733 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 734 set( ANDROID_ARCH_NAME "arm" ) 735 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 736 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 737 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" ) 738 set( ARMEABI_V7A true ) 739 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 740 set( ANDROID_ARCH_NAME "arm" ) 741 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 742 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 743 set( VFPV3 true ) 744 elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" ) 745 set( ARMEABI_V7A true ) 746 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 747 set( ANDROID_ARCH_NAME "arm" ) 748 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 749 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 750 set( VFPV3 true ) 751 set( NEON true ) 752 else() 753 message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." ) 754 endif() 755 756 if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" ) 757 # really dirty hack 758 # it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run... 759 file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" ) 760 endif() 761 762 if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 ) 763 __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF ) 764 set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE ) 765 mark_as_advanced( ANDROID_FORCE_ARM_BUILD ) 766 else() 767 unset( ANDROID_FORCE_ARM_BUILD CACHE ) 768 endif() 769 770 # choose toolchain 771 if( ANDROID_TOOLCHAIN_NAME ) 772 list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx ) 773 if( __toolchainIdx EQUAL -1 ) 774 list( SORT __availableToolchains ) 775 string( REPLACE ";" "\n * " toolchains_list "${__availableToolchains}" ) 776 set( toolchains_list " * ${toolchains_list}") 777 message( FATAL_ERROR "Specified toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing in your NDK or broken. Please verify that your NDK is working or select another compiler toolchain. 778 To configure the toolchain set CMake variable ANDROID_TOOLCHAIN_NAME to one of the following values:\n${toolchains_list}\n" ) 779 endif() 780 list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) 781 if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 782 message( SEND_ERROR "Selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." ) 783 endif() 784 else() 785 set( __toolchainIdx -1 ) 786 set( __applicableToolchains "" ) 787 set( __toolchainMaxVersion "0.0.0" ) 788 list( LENGTH __availableToolchains __availableToolchainsCount ) 789 math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" ) 790 foreach( __idx RANGE ${__availableToolchainsCount} ) 791 list( GET __availableToolchainArchs ${__idx} __toolchainArch ) 792 if( __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 793 list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) 794 string( REPLACE "x" "99" __toolchainVersion "${__toolchainVersion}") 795 if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion ) 796 set( __toolchainMaxVersion "${__toolchainVersion}" ) 797 set( __toolchainIdx ${__idx} ) 798 endif() 799 endif() 800 endforeach() 801 unset( __availableToolchainsCount ) 802 unset( __toolchainMaxVersion ) 803 unset( __toolchainVersion ) 804 endif() 805 unset( __toolchainArch ) 806 if( __toolchainIdx EQUAL -1 ) 807 message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." ) 808 endif() 809 list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME ) 810 list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME ) 811 list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION ) 812 813 unset( __toolchainIdx ) 814 unset( __availableToolchains ) 815 unset( __availableToolchainMachines ) 816 unset( __availableToolchainArchs ) 817 unset( __availableToolchainCompilerVersions ) 818 819 # choose native API level 820 __INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) 821 string( REPLACE "android-" "" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) 822 string( STRIP "${ANDROID_NATIVE_API_LEVEL}" ANDROID_NATIVE_API_LEVEL ) 823 # adjust API level 824 set( __real_api_level ${ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME}} ) 825 foreach( __level ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 826 if( (__level LESS ANDROID_NATIVE_API_LEVEL OR __level STREQUAL ANDROID_NATIVE_API_LEVEL) AND NOT __level LESS __real_api_level ) 827 set( __real_api_level ${__level} ) 828 endif() 829 endforeach() 830 if( __real_api_level AND NOT ANDROID_NATIVE_API_LEVEL STREQUAL __real_api_level ) 831 message( STATUS "Adjusting Android API level 'android-${ANDROID_NATIVE_API_LEVEL}' to 'android-${__real_api_level}'") 832 set( ANDROID_NATIVE_API_LEVEL ${__real_api_level} ) 833 endif() 834 unset(__real_api_level) 835 # validate 836 list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) 837 if( __levelIdx EQUAL -1 ) 838 message( SEND_ERROR "Specified Android native API level 'android-${ANDROID_NATIVE_API_LEVEL}' is not supported by your NDK/toolchain." ) 839 else() 840 if( BUILD_WITH_ANDROID_NDK ) 841 __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" ) 842 if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL AND NOT __realApiLevel GREATER 9000 ) 843 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." ) 844 endif() 845 unset( __realApiLevel ) 846 endif() 847 set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE ) 848 if( CMAKE_VERSION VERSION_GREATER "2.8" ) 849 list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS ) 850 set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 851 endif() 852 endif() 853 unset( __levelIdx ) 854 855 856 # remember target ABI 857 set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) 858 if( CMAKE_VERSION VERSION_GREATER "2.8" ) 859 list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} ) 860 set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} ) 861 endif() 862 863 864 # runtime choice (STL, rtti, exceptions) 865 if( NOT ANDROID_STL ) 866 # honor legacy ANDROID_USE_STLPORT 867 if( DEFINED ANDROID_USE_STLPORT ) 868 if( ANDROID_USE_STLPORT ) 869 set( ANDROID_STL stlport_static ) 870 endif() 871 message( WARNING "You are using an obsolete variable ANDROID_USE_STLPORT to select the STL variant. Use -DANDROID_STL=stlport_static instead." ) 872 endif() 873 if( NOT ANDROID_STL ) 874 set( ANDROID_STL gnustl_static ) 875 endif() 876 endif() 877 set( ANDROID_STL "${ANDROID_STL}" CACHE STRING "C++ runtime" ) 878 set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and exceptions support based on C++ runtime" ) 879 mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES ) 880 881 if( BUILD_WITH_ANDROID_NDK ) 882 if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$") 883 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 884 The possible values are: 885 none -> Do not configure the runtime. 886 system -> Use the default minimal system C++ runtime library. 887 system_re -> Same as system but with rtti and exceptions. 888 gabi++_static -> Use the GAbi++ runtime as a static library. 889 gabi++_shared -> Use the GAbi++ runtime as a shared library. 890 stlport_static -> Use the STLport runtime as a static library. 891 stlport_shared -> Use the STLport runtime as a shared library. 892 gnustl_static -> (default) Use the GNU STL as a static library. 893 gnustl_shared -> Use the GNU STL as a shared library. 894 " ) 895 endif() 896 elseif( BUILD_WITH_STANDALONE_TOOLCHAIN ) 897 if( NOT "${ANDROID_STL}" MATCHES "^(none|gnustl_static|gnustl_shared)$") 898 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 899 The possible values are: 900 none -> Do not configure the runtime. 901 gnustl_static -> (default) Use the GNU STL as a static library. 902 gnustl_shared -> Use the GNU STL as a shared library. 903 " ) 904 endif() 905 endif() 906 907 unset( ANDROID_RTTI ) 908 unset( ANDROID_EXCEPTIONS ) 909 unset( ANDROID_STL_INCLUDE_DIRS ) 910 unset( __libstl ) 911 unset( __libsupcxx ) 912 913 if( NOT _CMAKE_IN_TRY_COMPILE AND ANDROID_NDK_RELEASE STREQUAL "r7b" AND ARMEABI_V7A AND NOT VFPV3 AND ANDROID_STL MATCHES "gnustl" ) 914 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). 915 You are strongly recommended to switch to another NDK release. 916 " ) 917 endif() 918 919 if( NOT _CMAKE_IN_TRY_COMPILE AND X86 AND ANDROID_STL MATCHES "gnustl" AND ANDROID_NDK_RELEASE STREQUAL "r6" ) 920 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: 921 See https://android.googlesource.com/platform/development.git f907f4f9d4e56ccc8093df6fee54454b8bcab6c2 922 diff --git a/ndk/platforms/android-9/arch-x86/include/machine/_types.h b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 923 index 5e28c64..65892a1 100644 924 --- a/ndk/platforms/android-9/arch-x86/include/machine/_types.h 925 +++ b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 926 @@ -51,7 +51,11 @@ typedef long int ssize_t; 927 #endif 928 #ifndef _PTRDIFF_T 929 #define _PTRDIFF_T 930 -typedef long ptrdiff_t; 931 +# ifdef __ANDROID__ 932 + typedef int ptrdiff_t; 933 +# else 934 + typedef long ptrdiff_t; 935 +# endif 936 #endif 937 " ) 938 endif() 939 940 941 # setup paths and STL for standalone toolchain 942 if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 943 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 944 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 945 set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) 946 947 if( NOT ANDROID_STL STREQUAL "none" ) 948 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/include/c++/${ANDROID_COMPILER_VERSION}" ) 949 if( NOT EXISTS "${ANDROID_STL_INCLUDE_DIRS}" ) 950 # old location ( pre r8c ) 951 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}" ) 952 endif() 953 if( ARMEABI_V7A AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) 954 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) 955 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) 956 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) 957 else() 958 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) 959 endif() 960 # always search static GNU STL to get the location of libsupc++.a 961 if( ARMEABI_V7A AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) 962 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) 963 elseif( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) 964 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}" ) 965 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libstdc++.a" ) 966 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb" ) 967 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libstdc++.a" ) 968 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) 969 endif() 970 if( __libstl ) 971 set( __libsupcxx "${__libstl}/libsupc++.a" ) 972 set( __libstl "${__libstl}/libstdc++.a" ) 973 endif() 974 if( NOT EXISTS "${__libsupcxx}" ) 975 message( FATAL_ERROR "The required libstdsupc++.a is missing in your standalone toolchain. 976 Usually it happens because of bug in make-standalone-toolchain.sh script from NDK r7, r7b and r7c. 977 You need to either upgrade to newer NDK or manually copy 978 $ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a 979 to 980 ${__libsupcxx} 981 " ) 982 endif() 983 if( ANDROID_STL STREQUAL "gnustl_shared" ) 984 if( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 985 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 986 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 987 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 988 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 989 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 990 endif() 991 endif() 992 endif() 993 endif() 994 995 # clang 996 if( "${ANDROID_TOOLCHAIN_NAME}" STREQUAL "standalone-clang" ) 997 set( ANDROID_COMPILER_IS_CLANG 1 ) 998 execute_process( COMMAND "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/clang${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE ANDROID_CLANG_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE ) 999 string( REGEX MATCH "[0-9]+[.][0-9]+" ANDROID_CLANG_VERSION "${ANDROID_CLANG_VERSION}") 1000 elseif( "${ANDROID_TOOLCHAIN_NAME}" MATCHES "-clang3[.][0-9]?$" ) 1001 string( REGEX MATCH "3[.][0-9]$" ANDROID_CLANG_VERSION "${ANDROID_TOOLCHAIN_NAME}") 1002 string( REGEX REPLACE "-clang${ANDROID_CLANG_VERSION}$" "-${ANDROID_COMPILER_VERSION}" ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 1003 if( NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}/bin/clang${TOOL_OS_SUFFIX}" ) 1004 message( FATAL_ERROR "Could not find the Clang compiler driver" ) 1005 endif() 1006 set( ANDROID_COMPILER_IS_CLANG 1 ) 1007 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 1008 else() 1009 set( ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 1010 unset( ANDROID_COMPILER_IS_CLANG CACHE ) 1011 endif() 1012 1013 string( REPLACE "." "" _clang_name "clang${ANDROID_CLANG_VERSION}" ) 1014 if( NOT EXISTS "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" ) 1015 set( _clang_name "clang" ) 1016 endif() 1017 1018 1019 # setup paths and STL for NDK 1020 if( BUILD_WITH_ANDROID_NDK ) 1021 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 1022 set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) 1023 1024 if( ANDROID_STL STREQUAL "none" ) 1025 # do nothing 1026 elseif( ANDROID_STL STREQUAL "system" ) 1027 set( ANDROID_RTTI OFF ) 1028 set( ANDROID_EXCEPTIONS OFF ) 1029 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 1030 elseif( ANDROID_STL STREQUAL "system_re" ) 1031 set( ANDROID_RTTI ON ) 1032 set( ANDROID_EXCEPTIONS ON ) 1033 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 1034 elseif( ANDROID_STL MATCHES "gabi" ) 1035 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1036 message( FATAL_ERROR "gabi++ is not awailable in your NDK. You have to upgrade to NDK r7 or newer to use gabi++.") 1037 endif() 1038 set( ANDROID_RTTI ON ) 1039 set( ANDROID_EXCEPTIONS OFF ) 1040 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/gabi++/include" ) 1041 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gabi++/libs/${ANDROID_NDK_ABI_NAME}/libgabi++_static.a" ) 1042 elseif( ANDROID_STL MATCHES "stlport" ) 1043 if( NOT ANDROID_NDK_RELEASE_NUM LESS 8004 ) # before r8d 1044 set( ANDROID_EXCEPTIONS ON ) 1045 else() 1046 set( ANDROID_EXCEPTIONS OFF ) 1047 endif() 1048 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1049 set( ANDROID_RTTI OFF ) 1050 else() 1051 set( ANDROID_RTTI ON ) 1052 endif() 1053 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) 1054 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) 1055 elseif( ANDROID_STL MATCHES "gnustl" ) 1056 set( ANDROID_EXCEPTIONS ON ) 1057 set( ANDROID_RTTI ON ) 1058 if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1059 if( ARMEABI_V7A AND ANDROID_COMPILER_VERSION VERSION_EQUAL "4.7" AND ANDROID_NDK_RELEASE STREQUAL "r8d" ) 1060 # gnustl binary for 4.7 compiler is buggy :( 1061 # TODO: look for right fix 1062 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/4.6" ) 1063 else() 1064 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1065 endif() 1066 else() 1067 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" ) 1068 endif() 1069 set( ANDROID_STL_INCLUDE_DIRS "${__libstl}/include" "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/include" "${__libstl}/include/backward" ) 1070 if( EXISTS "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1071 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1072 else() 1073 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) 1074 endif() 1075 else() 1076 message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" ) 1077 endif() 1078 # find libsupc++.a - rtti & exceptions 1079 if( ANDROID_STL STREQUAL "system_re" OR ANDROID_STL MATCHES "gnustl" ) 1080 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r8b or newer 1081 if( NOT EXISTS "${__libsupcxx}" ) 1082 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r7-r8 1083 endif() 1084 if( NOT EXISTS "${__libsupcxx}" ) # before r7 1085 if( ARMEABI_V7A ) 1086 if( ANDROID_FORCE_ARM_BUILD ) 1087 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) 1088 else() 1089 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) 1090 endif() 1091 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD ) 1092 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) 1093 else() 1094 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) 1095 endif() 1096 endif() 1097 if( NOT EXISTS "${__libsupcxx}") 1098 message( ERROR "Could not find libsupc++.a for a chosen platform. Either your NDK is not supported or is broken.") 1099 endif() 1100 endif() 1101 endif() 1102 1103 1104 # case of shared STL linkage 1105 if( ANDROID_STL MATCHES "shared" AND DEFINED __libstl ) 1106 string( REPLACE "_static.a" "_shared.so" __libstl "${__libstl}" ) 1107 # TODO: check if .so file exists before the renaming 1108 endif() 1109 1110 1111 # ccache support 1112 __INIT_VARIABLE( _ndk_ccache NDK_CCACHE ENV_NDK_CCACHE ) 1113 if( _ndk_ccache ) 1114 if( DEFINED NDK_CCACHE AND NOT EXISTS NDK_CCACHE ) 1115 unset( NDK_CCACHE CACHE ) 1116 endif() 1117 find_program( NDK_CCACHE "${_ndk_ccache}" DOC "The path to ccache binary") 1118 else() 1119 unset( NDK_CCACHE CACHE ) 1120 endif() 1121 unset( _ndk_ccache ) 1122 1123 1124 # setup the cross-compiler 1125 if( NOT CMAKE_C_COMPILER ) 1126 if( NDK_CCACHE AND NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1127 set( CMAKE_C_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C compiler" ) 1128 set( CMAKE_CXX_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C++ compiler" ) 1129 if( ANDROID_COMPILER_IS_CLANG ) 1130 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1131 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1132 else() 1133 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1134 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1135 endif() 1136 else() 1137 if( ANDROID_COMPILER_IS_CLANG ) 1138 set( CMAKE_C_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1139 set( CMAKE_CXX_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1140 else() 1141 set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler" ) 1142 set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler" ) 1143 endif() 1144 endif() 1145 set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "assembler" ) 1146 set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" ) 1147 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) 1148 set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" ) 1149 set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" ) 1150 set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" ) 1151 set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" ) 1152 set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) 1153 endif() 1154 1155 set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" ) 1156 if( CMAKE_VERSION VERSION_LESS 2.8.5 ) 1157 set( CMAKE_ASM_COMPILER_ARG1 "-c" ) 1158 endif() 1159 if( APPLE ) 1160 find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool ) 1161 if( NOT CMAKE_INSTALL_NAME_TOOL ) 1162 message( FATAL_ERROR "Could not find install_name_tool, please check your installation." ) 1163 endif() 1164 mark_as_advanced( CMAKE_INSTALL_NAME_TOOL ) 1165 endif() 1166 1167 # Force set compilers because standard identification works badly for us 1168 include( CMakeForceCompiler ) 1169 CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) 1170 if( ANDROID_COMPILER_IS_CLANG ) 1171 set( CMAKE_C_COMPILER_ID Clang ) 1172 endif() 1173 set( CMAKE_C_PLATFORM_ID Linux ) 1174 if( X86_64 OR MIPS64 OR ARM64_V8A ) 1175 set( CMAKE_C_SIZEOF_DATA_PTR 8 ) 1176 else() 1177 set( CMAKE_C_SIZEOF_DATA_PTR 4 ) 1178 endif() 1179 set( CMAKE_C_HAS_ISYSROOT 1 ) 1180 set( CMAKE_C_COMPILER_ABI ELF ) 1181 CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) 1182 if( ANDROID_COMPILER_IS_CLANG ) 1183 set( CMAKE_CXX_COMPILER_ID Clang) 1184 endif() 1185 set( CMAKE_CXX_PLATFORM_ID Linux ) 1186 set( CMAKE_CXX_SIZEOF_DATA_PTR ${CMAKE_C_SIZEOF_DATA_PTR} ) 1187 set( CMAKE_CXX_HAS_ISYSROOT 1 ) 1188 set( CMAKE_CXX_COMPILER_ABI ELF ) 1189 set( CMAKE_CXX_SOURCE_FILE_EXTENSIONS cc cp cxx cpp CPP c++ C ) 1190 # force ASM compiler (required for CMake < 2.8.5) 1191 set( CMAKE_ASM_COMPILER_ID_RUN TRUE ) 1192 set( CMAKE_ASM_COMPILER_ID GNU ) 1193 set( CMAKE_ASM_COMPILER_WORKS TRUE ) 1194 set( CMAKE_ASM_COMPILER_FORCED TRUE ) 1195 set( CMAKE_COMPILER_IS_GNUASM 1) 1196 set( CMAKE_ASM_SOURCE_FILE_EXTENSIONS s S asm ) 1197 1198 foreach( lang C CXX ASM ) 1199 if( ANDROID_COMPILER_IS_CLANG ) 1200 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_CLANG_VERSION} ) 1201 else() 1202 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_COMPILER_VERSION} ) 1203 endif() 1204 endforeach() 1205 1206 # flags and definitions 1207 remove_definitions( -DANDROID ) 1208 add_definitions( -DANDROID ) 1209 1210 if( ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1211 if( CMAKE_HOST_WIN32 ) 1212 # try to convert path to 8.3 form 1213 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "@echo %~s1" ) 1214 execute_process( COMMAND "$ENV{ComSpec}" /c "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "${ANDROID_SYSROOT}" 1215 OUTPUT_VARIABLE __path OUTPUT_STRIP_TRAILING_WHITESPACE 1216 RESULT_VARIABLE __result ERROR_QUIET ) 1217 if( __result EQUAL 0 ) 1218 file( TO_CMAKE_PATH "${__path}" ANDROID_SYSROOT ) 1219 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1220 else() 1221 set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) 1222 endif() 1223 else() 1224 set( ANDROID_CXX_FLAGS "'--sysroot=${ANDROID_SYSROOT}'" ) 1225 endif() 1226 if( NOT _CMAKE_IN_TRY_COMPILE ) 1227 # quotes can break try_compile and compiler identification 1228 message(WARNING "Path to your Android NDK (or toolchain) has non-alphanumeric symbols.\nThe build might be broken.\n") 1229 endif() 1230 else() 1231 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1232 endif() 1233 1234 # NDK flags 1235 if (ARM64_V8A ) 1236 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -ffunction-sections -funwind-tables" ) 1237 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1238 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1239 if( NOT ANDROID_COMPILER_IS_CLANG ) 1240 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1241 endif() 1242 elseif( ARMEABI OR ARMEABI_V7A) 1243 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1244 if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) 1245 set( ANDROID_CXX_FLAGS_RELEASE "-mthumb -fomit-frame-pointer -fno-strict-aliasing" ) 1246 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1247 if( NOT ANDROID_COMPILER_IS_CLANG ) 1248 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -finline-limit=64" ) 1249 endif() 1250 else() 1251 # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI 1252 set( ANDROID_CXX_FLAGS_RELEASE "-marm -fomit-frame-pointer -fstrict-aliasing" ) 1253 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1254 if( NOT ANDROID_COMPILER_IS_CLANG ) 1255 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1256 endif() 1257 endif() 1258 elseif( X86 OR X86_64 ) 1259 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1260 if( NOT ANDROID_COMPILER_IS_CLANG ) 1261 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1262 endif() 1263 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1264 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1265 elseif( MIPS OR MIPS64 ) 1266 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-strict-aliasing -finline-functions -ffunction-sections -funwind-tables -fmessage-length=0" ) 1267 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer" ) 1268 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer" ) 1269 if( NOT ANDROID_COMPILER_IS_CLANG ) 1270 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" ) 1271 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1272 endif() 1273 elseif() 1274 set( ANDROID_CXX_FLAGS_RELEASE "" ) 1275 set( ANDROID_CXX_FLAGS_DEBUG "" ) 1276 endif() 1277 1278 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) # good/necessary when porting desktop libraries 1279 1280 if( NOT X86 AND NOT ANDROID_COMPILER_IS_CLANG ) 1281 set( ANDROID_CXX_FLAGS "-Wno-psabi ${ANDROID_CXX_FLAGS}" ) 1282 endif() 1283 1284 if( NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.6" ) 1285 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -no-canonical-prefixes" ) # see https://android-review.googlesource.com/#/c/47564/ 1286 endif() 1287 1288 # ABI-specific flags 1289 if( ARMEABI_V7A ) 1290 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) 1291 if( NEON ) 1292 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" ) 1293 elseif( VFPV3 ) 1294 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" ) 1295 else() 1296 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" ) 1297 endif() 1298 elseif( ARMEABI_V6 ) 1299 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) # vfp == vfpv2 1300 elseif( ARMEABI ) 1301 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) 1302 endif() 1303 1304 if( ANDROID_STL MATCHES "gnustl" AND (EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}") ) 1305 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>" ) 1306 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>" ) 1307 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1308 else() 1309 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>" ) 1310 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>" ) 1311 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1312 endif() 1313 1314 # STL 1315 if( EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}" ) 1316 if( EXISTS "${__libstl}" ) 1317 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libstl}\"" ) 1318 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libstl}\"" ) 1319 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libstl}\"" ) 1320 endif() 1321 if( EXISTS "${__libsupcxx}" ) 1322 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1323 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1324 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1325 # C objects: 1326 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>" ) 1327 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>" ) 1328 set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1329 set( CMAKE_C_CREATE_SHARED_LIBRARY "${CMAKE_C_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1330 set( CMAKE_C_CREATE_SHARED_MODULE "${CMAKE_C_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1331 set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1332 endif() 1333 if( ANDROID_STL MATCHES "gnustl" ) 1334 if( NOT EXISTS "${ANDROID_LIBM_PATH}" ) 1335 set( ANDROID_LIBM_PATH -lm ) 1336 endif() 1337 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} ${ANDROID_LIBM_PATH}" ) 1338 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} ${ANDROID_LIBM_PATH}" ) 1339 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIBM_PATH}" ) 1340 endif() 1341 endif() 1342 1343 # variables controlling optional build flags 1344 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1345 # libGLESv2.so in NDK's prior to r7 refers to missing external symbols. 1346 # So this flag option is required for all projects using OpenGL from native. 1347 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON ) 1348 else() 1349 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF ) 1350 endif() 1351 __INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON ) 1352 __INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON ) 1353 __INIT_VARIABLE( ANDROID_GOLD_LINKER VALUES ON ) 1354 __INIT_VARIABLE( ANDROID_NOEXECSTACK VALUES ON ) 1355 __INIT_VARIABLE( ANDROID_RELRO VALUES ON ) 1356 1357 set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" ) 1358 set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1359 set( ANDROID_FUNCTION_LEVEL_LINKING ${ANDROID_FUNCTION_LEVEL_LINKING} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1360 set( ANDROID_GOLD_LINKER ${ANDROID_GOLD_LINKER} CACHE BOOL "Enables gold linker" ) 1361 set( ANDROID_NOEXECSTACK ${ANDROID_NOEXECSTACK} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1362 set( ANDROID_RELRO ${ANDROID_RELRO} CACHE BOOL "Enables RELRO - a memory corruption mitigation technique" ) 1363 mark_as_advanced( ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO ) 1364 1365 # linker flags 1366 set( ANDROID_LINKER_FLAGS "" ) 1367 1368 if( ARMEABI_V7A ) 1369 # this is *required* to use the following linker flags that routes around 1370 # a CPU bug in some Cortex-A8 implementations: 1371 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--fix-cortex-a8" ) 1372 endif() 1373 1374 if( ANDROID_NO_UNDEFINED ) 1375 if( MIPS ) 1376 # there is some sysroot-related problem in mips linker... 1377 if( NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1378 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined -Wl,-rpath-link,${ANDROID_SYSROOT}/usr/lib" ) 1379 endif() 1380 else() 1381 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined" ) 1382 endif() 1383 endif() 1384 1385 if( ANDROID_SO_UNDEFINED ) 1386 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) 1387 endif() 1388 1389 if( ANDROID_FUNCTION_LEVEL_LINKING ) 1390 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" ) 1391 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" ) 1392 endif() 1393 1394 if( ANDROID_COMPILER_VERSION VERSION_EQUAL "4.6" ) 1395 if( ANDROID_GOLD_LINKER AND (CMAKE_HOST_UNIX OR ANDROID_NDK_RELEASE_NUM GREATER 8002) AND (ARMEABI OR ARMEABI_V7A OR X86) ) 1396 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold" ) 1397 elseif( ANDROID_NDK_RELEASE_NUM GREATER 8002 ) # after r8b 1398 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=bfd" ) 1399 elseif( ANDROID_NDK_RELEASE STREQUAL "r8b" AND ARMEABI AND NOT _CMAKE_IN_TRY_COMPILE ) 1400 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 1401 On Linux and OS X host platform you can workaround this problem using gold linker (default). 1402 Rerun cmake with -DANDROID_GOLD_LINKER=ON option in case of problems. 1403 " ) 1404 endif() 1405 endif() # version 4.6 1406 1407 if( ANDROID_NOEXECSTACK ) 1408 if( ANDROID_COMPILER_IS_CLANG ) 1409 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Xclang -mnoexecstack" ) 1410 else() 1411 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Wa,--noexecstack" ) 1412 endif() 1413 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,noexecstack" ) 1414 endif() 1415 1416 if( ANDROID_RELRO ) 1417 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now" ) 1418 endif() 1419 1420 if( ANDROID_COMPILER_IS_CLANG ) 1421 set( ANDROID_CXX_FLAGS "-target ${ANDROID_LLVM_TRIPLE} -Qunused-arguments ${ANDROID_CXX_FLAGS}" ) 1422 if( BUILD_WITH_ANDROID_NDK ) 1423 set( ANDROID_CXX_FLAGS "-gcc-toolchain ${ANDROID_TOOLCHAIN_ROOT} ${ANDROID_CXX_FLAGS}" ) 1424 endif() 1425 endif() 1426 1427 # cache flags 1428 set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" ) 1429 set( CMAKE_C_FLAGS "" CACHE STRING "c flags" ) 1430 set( CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c++ Release flags" ) 1431 set( CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c Release flags" ) 1432 set( CMAKE_CXX_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c++ Debug flags" ) 1433 set( CMAKE_C_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c Debug flags" ) 1434 set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags" ) 1435 set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags" ) 1436 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags" ) 1437 1438 # put flags to cache (for debug purpose only) 1439 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Android specific c/c++ flags" ) 1440 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE}" CACHE INTERNAL "Android specific c/c++ Release flags" ) 1441 set( ANDROID_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG}" CACHE INTERNAL "Android specific c/c++ Debug flags" ) 1442 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Android specific c/c++ linker flags" ) 1443 1444 # finish flags 1445 set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) 1446 set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) 1447 set( CMAKE_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}" ) 1448 set( CMAKE_C_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}" ) 1449 set( CMAKE_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}" ) 1450 set( CMAKE_C_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}" ) 1451 set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" ) 1452 set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" ) 1453 set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" ) 1454 1455 if( MIPS AND BUILD_WITH_ANDROID_NDK AND ANDROID_NDK_RELEASE STREQUAL "r8" ) 1456 set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_SHARED_LINKER_FLAGS}" ) 1457 set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_MODULE_LINKER_FLAGS}" ) 1458 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.x ${CMAKE_EXE_LINKER_FLAGS}" ) 1459 endif() 1460 1461 # pie/pic 1462 if( NOT (ANDROID_NATIVE_API_LEVEL LESS 16) AND (NOT DEFINED ANDROID_APP_PIE OR ANDROID_APP_PIE) AND (CMAKE_VERSION VERSION_GREATER 2.8.8) ) 1463 set( CMAKE_POSITION_INDEPENDENT_CODE TRUE ) 1464 set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE -pie") 1465 else() 1466 set( CMAKE_POSITION_INDEPENDENT_CODE FALSE ) 1467 set( CMAKE_CXX_FLAGS "-fpic ${CMAKE_CXX_FLAGS}" ) 1468 set( CMAKE_C_FLAGS "-fpic ${CMAKE_C_FLAGS}" ) 1469 endif() 1470 1471 # configure rtti 1472 if( DEFINED ANDROID_RTTI AND ANDROID_STL_FORCE_FEATURES ) 1473 if( ANDROID_RTTI ) 1474 set( CMAKE_CXX_FLAGS "-frtti ${CMAKE_CXX_FLAGS}" ) 1475 else() 1476 set( CMAKE_CXX_FLAGS "-fno-rtti ${CMAKE_CXX_FLAGS}" ) 1477 endif() 1478 endif() 1479 1480 # configure exceptios 1481 if( DEFINED ANDROID_EXCEPTIONS AND ANDROID_STL_FORCE_FEATURES ) 1482 if( ANDROID_EXCEPTIONS ) 1483 set( CMAKE_CXX_FLAGS "-fexceptions ${CMAKE_CXX_FLAGS}" ) 1484 set( CMAKE_C_FLAGS "-fexceptions ${CMAKE_C_FLAGS}" ) 1485 else() 1486 set( CMAKE_CXX_FLAGS "-fno-exceptions ${CMAKE_CXX_FLAGS}" ) 1487 set( CMAKE_C_FLAGS "-fno-exceptions ${CMAKE_C_FLAGS}" ) 1488 endif() 1489 endif() 1490 1491 # global includes and link directories 1492 include_directories( SYSTEM "${ANDROID_SYSROOT}/usr/include" ${ANDROID_STL_INCLUDE_DIRS} ) 1493 get_filename_component(__android_install_path "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ABSOLUTE) # avoid CMP0015 policy warning 1494 link_directories( "${__android_install_path}" ) 1495 1496 # detect if need link crtbegin_so.o explicitly 1497 if( NOT DEFINED ANDROID_EXPLICIT_CRT_LINK ) 1498 set( __cmd "${CMAKE_CXX_CREATE_SHARED_LIBRARY}" ) 1499 string( REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}" __cmd "${__cmd}" ) 1500 string( REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" __cmd "${__cmd}" ) 1501 string( REPLACE "<CMAKE_SHARED_LIBRARY_CXX_FLAGS>" "${CMAKE_CXX_FLAGS}" __cmd "${__cmd}" ) 1502 string( REPLACE "<LANGUAGE_COMPILE_FLAGS>" "" __cmd "${__cmd}" ) 1503 string( REPLACE "<LINK_FLAGS>" "${CMAKE_SHARED_LINKER_FLAGS}" __cmd "${__cmd}" ) 1504 string( REPLACE "<CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>" "-shared" __cmd "${__cmd}" ) 1505 string( REPLACE "<CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG>" "" __cmd "${__cmd}" ) 1506 string( REPLACE "<TARGET_SONAME>" "" __cmd "${__cmd}" ) 1507 string( REPLACE "<TARGET>" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain_crtlink_test.so" __cmd "${__cmd}" ) 1508 string( REPLACE "<OBJECTS>" "\"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" __cmd "${__cmd}" ) 1509 string( REPLACE "<LINK_LIBRARIES>" "" __cmd "${__cmd}" ) 1510 separate_arguments( __cmd ) 1511 foreach( __var ANDROID_NDK ANDROID_NDK_TOOLCHAINS_PATH ANDROID_STANDALONE_TOOLCHAIN ) 1512 if( ${__var} ) 1513 set( __tmp "${${__var}}" ) 1514 separate_arguments( __tmp ) 1515 string( REPLACE "${__tmp}" "${${__var}}" __cmd "${__cmd}") 1516 endif() 1517 endforeach() 1518 string( REPLACE "'" "" __cmd "${__cmd}" ) 1519 string( REPLACE "\"" "" __cmd "${__cmd}" ) 1520 execute_process( COMMAND ${__cmd} RESULT_VARIABLE __cmd_result OUTPUT_QUIET ERROR_QUIET ) 1521 if( __cmd_result EQUAL 0 ) 1522 set( ANDROID_EXPLICIT_CRT_LINK ON ) 1523 else() 1524 set( ANDROID_EXPLICIT_CRT_LINK OFF ) 1525 endif() 1526 endif() 1527 1528 if( ANDROID_EXPLICIT_CRT_LINK ) 1529 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1530 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1531 endif() 1532 1533 # setup output directories 1534 set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" ) 1535 set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) 1536 1537 if(NOT _CMAKE_IN_TRY_COMPILE) 1538 if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) 1539 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" ) 1540 else() 1541 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" ) 1542 endif() 1543 set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" ) 1544 endif() 1545 1546 # copy shaed stl library to build directory 1547 if( NOT _CMAKE_IN_TRY_COMPILE AND __libstl MATCHES "[.]so$" ) 1548 get_filename_component( __libstlname "${__libstl}" NAME ) 1549 execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${__libstl}" "${LIBRARY_OUTPUT_PATH}/${__libstlname}" RESULT_VARIABLE __fileCopyProcess ) 1550 if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${LIBRARY_OUTPUT_PATH}/${__libstlname}") 1551 message( SEND_ERROR "Failed copying of ${__libstl} to the ${LIBRARY_OUTPUT_PATH}/${__libstlname}" ) 1552 endif() 1553 unset( __fileCopyProcess ) 1554 unset( __libstlname ) 1555 endif() 1556 1557 1558 # set these global flags for cmake client scripts to change behavior 1559 set( ANDROID True ) 1560 set( BUILD_ANDROID True ) 1561 1562 # where is the target environment 1563 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" ) 1564 1565 # only search for libraries and includes in the ndk toolchain 1566 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1567 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1568 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1569 1570 1571 # macro to find packages on the host OS 1572 macro( find_host_package ) 1573 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1574 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1575 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1576 if( CMAKE_HOST_WIN32 ) 1577 SET( WIN32 1 ) 1578 SET( UNIX ) 1579 elseif( CMAKE_HOST_APPLE ) 1580 SET( APPLE 1 ) 1581 SET( UNIX ) 1582 endif() 1583 find_package( ${ARGN} ) 1584 SET( WIN32 ) 1585 SET( APPLE ) 1586 SET( UNIX 1 ) 1587 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1588 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1589 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1590 endmacro() 1591 1592 1593 # macro to find programs on the host OS 1594 macro( find_host_program ) 1595 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1596 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1597 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1598 if( CMAKE_HOST_WIN32 ) 1599 SET( WIN32 1 ) 1600 SET( UNIX ) 1601 elseif( CMAKE_HOST_APPLE ) 1602 SET( APPLE 1 ) 1603 SET( UNIX ) 1604 endif() 1605 find_program( ${ARGN} ) 1606 SET( WIN32 ) 1607 SET( APPLE ) 1608 SET( UNIX 1 ) 1609 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1610 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1611 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1612 endmacro() 1613 1614 1615 macro( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR ) 1616 if( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" ) 1617 set( ${VAR} "armeabi" ) 1618 elseif( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" ) 1619 set( ${VAR} "armeabi-v7a" ) 1620 elseif( "${TOOLCHAIN_FLAG}" STREQUAL "X86" ) 1621 set( ${VAR} "x86" ) 1622 elseif( "${TOOLCHAIN_FLAG}" STREQUAL "MIPS" ) 1623 set( ${VAR} "mips" ) 1624 else() 1625 set( ${VAR} "unknown" ) 1626 endif() 1627 endmacro() 1628 1629 1630 # export toolchain settings for the try_compile() command 1631 if( NOT PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" ) 1632 set( __toolchain_config "") 1633 foreach( __var NDK_CCACHE LIBRARY_OUTPUT_PATH_ROOT ANDROID_FORBID_SYGWIN ANDROID_SET_OBSOLETE_VARIABLES 1634 ANDROID_NDK_HOST_X64 1635 ANDROID_NDK 1636 ANDROID_NDK_LAYOUT 1637 ANDROID_STANDALONE_TOOLCHAIN 1638 ANDROID_TOOLCHAIN_NAME 1639 ANDROID_ABI 1640 ANDROID_NATIVE_API_LEVEL 1641 ANDROID_STL 1642 ANDROID_STL_FORCE_FEATURES 1643 ANDROID_FORCE_ARM_BUILD 1644 ANDROID_NO_UNDEFINED 1645 ANDROID_SO_UNDEFINED 1646 ANDROID_FUNCTION_LEVEL_LINKING 1647 ANDROID_GOLD_LINKER 1648 ANDROID_NOEXECSTACK 1649 ANDROID_RELRO 1650 ANDROID_LIBM_PATH 1651 ANDROID_EXPLICIT_CRT_LINK 1652 ANDROID_APP_PIE 1653 ) 1654 if( DEFINED ${__var} ) 1655 if( "${__var}" MATCHES " ") 1656 set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" ) 1657 else() 1658 set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" ) 1659 endif() 1660 endif() 1661 endforeach() 1662 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" ) 1663 unset( __toolchain_config ) 1664 endif() 1665 1666 1667 # force cmake to produce / instead of \ in build commands for Ninja generator 1668 if( CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_HOST_WIN32 ) 1669 # it is a bad hack after all 1670 # CMake generates Ninja makefiles with UNIX paths only if it thinks that we are going to build with MinGW 1671 set( CMAKE_COMPILER_IS_MINGW TRUE ) # tell CMake that we are MinGW 1672 set( CMAKE_CROSSCOMPILING TRUE ) # stop recursion 1673 enable_language( C ) 1674 enable_language( CXX ) 1675 # unset( CMAKE_COMPILER_IS_MINGW ) # can't unset because CMake does not convert back-slashes in response files without it 1676 unset( MINGW ) 1677 endif() 1678 1679 1680 # set some obsolete variables for backward compatibility 1681 set( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" ) 1682 mark_as_advanced( ANDROID_SET_OBSOLETE_VARIABLES ) 1683 if( ANDROID_SET_OBSOLETE_VARIABLES ) 1684 set( ANDROID_API_LEVEL ${ANDROID_NATIVE_API_LEVEL} ) 1685 set( ARM_TARGET "${ANDROID_ABI}" ) 1686 set( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" ) 1687 endif() 1688 1689 1690 # Variables controlling behavior or set by cmake toolchain: 1691 # 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" 1692 # ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14,15,16,17,18,19,21 (depends on NDK version) 1693 # ANDROID_STL : gnustl_static/gnustl_shared/stlport_static/stlport_shared/gabi++_static/gabi++_shared/system_re/system/none 1694 # ANDROID_FORBID_SYGWIN : ON/OFF 1695 # ANDROID_NO_UNDEFINED : ON/OFF 1696 # ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version) 1697 # ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF 1698 # ANDROID_GOLD_LINKER : ON/OFF 1699 # ANDROID_NOEXECSTACK : ON/OFF 1700 # ANDROID_RELRO : ON/OFF 1701 # ANDROID_FORCE_ARM_BUILD : ON/OFF 1702 # ANDROID_STL_FORCE_FEATURES : ON/OFF 1703 # ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF 1704 # Can be set only at the first run: 1705 # ANDROID_NDK 1706 # ANDROID_STANDALONE_TOOLCHAIN 1707 # ANDROID_TOOLCHAIN_NAME : the NDK name of compiler toolchain 1708 # ANDROID_NDK_HOST_X64 : try to use x86_64 toolchain (default for x64 host systems) 1709 # ANDROID_NDK_LAYOUT : the inner NDK structure (RELEASE, LINARO, ANDROID) 1710 # LIBRARY_OUTPUT_PATH_ROOT : <any valid path> 1711 # NDK_CCACHE : <path to your ccache executable> 1712 # Obsolete: 1713 # ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL 1714 # ARM_TARGET : superseded by ANDROID_ABI 1715 # ARM_TARGETS : superseded by ANDROID_ABI (can be set only) 1716 # ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only) 1717 # ANDROID_USE_STLPORT : superseded by ANDROID_STL=stlport_static 1718 # ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed) 1719 # 1720 # Primary read-only variables: 1721 # ANDROID : always TRUE 1722 # ARMEABI : TRUE for arm v6 and older devices 1723 # ARMEABI_V6 : TRUE for arm v6 1724 # ARMEABI_V7A : TRUE for arm v7a 1725 # ARM64_V8A : TRUE for arm64-v8a 1726 # NEON : TRUE if NEON unit is enabled 1727 # VFPV3 : TRUE if VFP version 3 is enabled 1728 # X86 : TRUE if configured for x86 1729 # X86_64 : TRUE if configured for x86_64 1730 # MIPS : TRUE if configured for mips 1731 # MIPS64 : TRUE if configured for mips64 1732 # BUILD_ANDROID : always TRUE 1733 # BUILD_WITH_ANDROID_NDK : TRUE if NDK is used 1734 # BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used 1735 # ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform 1736 # ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a", "x86", "mips", "arm64-v8a", "x86_64", "mips64" depending on ANDROID_ABI 1737 # ANDROID_NDK_RELEASE : from r5 to r10d; set only for NDK 1738 # ANDROID_NDK_RELEASE_NUM : numeric ANDROID_NDK_RELEASE version (1000*major+minor) 1739 # ANDROID_ARCH_NAME : "arm", "x86", "mips", "arm64", "x86_64", "mips64" depending on ANDROID_ABI 1740 # ANDROID_SYSROOT : path to the compiler sysroot 1741 # TOOL_OS_SUFFIX : "" or ".exe" depending on host platform 1742 # ANDROID_COMPILER_IS_CLANG : TRUE if clang compiler is used 1743 # Obsolete: 1744 # ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME 1745 # 1746 # Secondary (less stable) read-only variables: 1747 # ANDROID_COMPILER_VERSION : GCC version used (not Clang version) 1748 # ANDROID_CLANG_VERSION : version of clang compiler if clang is used 1749 # ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform 1750 # ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI 1751 # ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux" 1752 # ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK) 1753 # ANDROID_CLANG_TOOLCHAIN_ROOT : path to clang tools 1754 # ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK 1755 # ANDROID_STL_INCLUDE_DIRS : stl include paths 1756 # ANDROID_RTTI : if rtti is enabled by the runtime 1757 # ANDROID_EXCEPTIONS : if exceptions are enabled by the runtime 1758 # ANDROID_GCC_TOOLCHAIN_NAME : read-only, differs from ANDROID_TOOLCHAIN_NAME only if clang is used 1759 # ANDROID_LIBM_PATH : path to libm.so (set to something like $(TOP)/out/target/product/<product_name>/obj/lib/libm.so) to workaround unresolved `sincos` 1760 # 1761 # Defaults: 1762 # ANDROID_DEFAULT_NDK_API_LEVEL 1763 # ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} 1764 # ANDROID_NDK_SEARCH_PATHS 1765 # ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH 1766 # ANDROID_SUPPORTED_ABIS_${ARCH} 1767 # ANDROID_SUPPORTED_NDK_VERSIONS 1768
