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} ${my_cxx_flags}" ) 174# The flags will be prepopulated with critical flags, so don't loose them. 175# Also be aware that toolchain also sets configuration-specific compiler 176# flags and linker flags. 177# 178# ANDROID and BUILD_ANDROID will be set to true, you may test any of these 179# variables to make necessary Android-specific configuration changes. 180# 181# Also ARMEABI or ARMEABI_V7A or X86 or MIPS or ARM64_V8A or X86_64 or MIPS64 182# will be set true, mutually exclusive. NEON option will be set true 183# if VFP is set to NEON. 184# 185# ------------------------------------------------------------------------------ 186 187cmake_minimum_required( VERSION 2.6.3 ) 188 189set(MPP_PROJECT_NAME mpp) 190set(VPU_PROJECT_NAME vpu) 191 192if( DEFINED CMAKE_CROSSCOMPILING ) 193 # subsequent toolchain loading is not really needed 194 return() 195endif() 196 197if( CMAKE_TOOLCHAIN_FILE ) 198 # touch toolchain variable to suppress "unused variable" warning 199endif() 200 201# inherit settings in recursive loads 202get_property( _CMAKE_IN_TRY_COMPILE GLOBAL PROPERTY IN_TRY_COMPILE ) 203if( _CMAKE_IN_TRY_COMPILE ) 204 include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL ) 205endif() 206 207# this one is important 208if( CMAKE_VERSION VERSION_GREATER "3.0.99" ) 209 set( CMAKE_SYSTEM_NAME Android ) 210else() 211 set( CMAKE_SYSTEM_NAME Linux ) 212endif() 213 214# this one not so much 215set( CMAKE_SYSTEM_VERSION 1 ) 216 217# rpath makes low sense for Android 218set( CMAKE_SHARED_LIBRARY_RUNTIME_C_FLAG "" ) 219set( CMAKE_SKIP_RPATH TRUE CACHE BOOL "If set, runtime paths are not added when using shared libraries." ) 220 221# NDK search paths 222set( ANDROID_SUPPORTED_NDK_VERSIONS ${ANDROID_EXTRA_NDK_VERSIONS} -r10d -r10c -r10b -r10 -r9d -r9c -r9b -r9 -r8e -r8d -r8c -r8b -r8 -r7c -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) 223if( NOT DEFINED ANDROID_NDK_SEARCH_PATHS ) 224 if( CMAKE_HOST_WIN32 ) 225 file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS ) 226 set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}" "$ENV{SystemDrive}/NVPACK" ) 227 else() 228 file( TO_CMAKE_PATH "$ENV{HOME}" ANDROID_NDK_SEARCH_PATHS ) 229 set( ANDROID_NDK_SEARCH_PATHS /opt "${ANDROID_NDK_SEARCH_PATHS}/NVPACK" ) 230 endif() 231endif() 232if( NOT DEFINED ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) 233 set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain ) 234endif() 235 236# known ABIs 237set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" ) 238set( ANDROID_SUPPORTED_ABIS_arm64 "arm64-v8a" ) 239set( ANDROID_SUPPORTED_ABIS_x86 "x86" ) 240set( ANDROID_SUPPORTED_ABIS_x86_64 "x86_64" ) 241set( ANDROID_SUPPORTED_ABIS_mips "mips" ) 242set( ANDROID_SUPPORTED_ABIS_mips64 "mips64" ) 243 244# API level defaults 245set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) 246set( ANDROID_DEFAULT_NDK_API_LEVEL_arm64 21 ) 247set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) 248set( ANDROID_DEFAULT_NDK_API_LEVEL_x86_64 21 ) 249set( ANDROID_DEFAULT_NDK_API_LEVEL_mips 9 ) 250set( ANDROID_DEFAULT_NDK_API_LEVEL_mips64 21 ) 251 252 253macro( __LIST_FILTER listvar regex ) 254 if( ${listvar} ) 255 foreach( __val ${${listvar}} ) 256 if( __val MATCHES "${regex}" ) 257 list( REMOVE_ITEM ${listvar} "${__val}" ) 258 endif() 259 endforeach() 260 endif() 261endmacro() 262 263macro( __INIT_VARIABLE var_name ) 264 set( __test_path 0 ) 265 foreach( __var ${ARGN} ) 266 if( __var STREQUAL "PATH" ) 267 set( __test_path 1 ) 268 break() 269 endif() 270 endforeach() 271 272 if( __test_path AND NOT EXISTS "${${var_name}}" ) 273 unset( ${var_name} CACHE ) 274 endif() 275 276 if( " ${${var_name}}" STREQUAL " " ) 277 set( __values 0 ) 278 foreach( __var ${ARGN} ) 279 if( __var STREQUAL "VALUES" ) 280 set( __values 1 ) 281 elseif( NOT __var STREQUAL "PATH" ) 282 if( __var MATCHES "^ENV_.*$" ) 283 string( REPLACE "ENV_" "" __var "${__var}" ) 284 set( __value "$ENV{${__var}}" ) 285 elseif( DEFINED ${__var} ) 286 set( __value "${${__var}}" ) 287 elseif( __values ) 288 set( __value "${__var}" ) 289 else() 290 set( __value "" ) 291 endif() 292 293 if( NOT " ${__value}" STREQUAL " " AND (NOT __test_path OR EXISTS "${__value}") ) 294 set( ${var_name} "${__value}" ) 295 break() 296 endif() 297 endif() 298 endforeach() 299 unset( __value ) 300 unset( __values ) 301 endif() 302 303 if( __test_path ) 304 file( TO_CMAKE_PATH "${${var_name}}" ${var_name} ) 305 endif() 306 unset( __test_path ) 307endmacro() 308 309macro( __DETECT_NATIVE_API_LEVEL _var _path ) 310 set( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*.*$" ) 311 file( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" ) 312 if( NOT __apiFileContent ) 313 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." ) 314 endif() 315 string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" ) 316 unset( __apiFileContent ) 317 unset( __ndkApiLevelRegex ) 318endmacro() 319 320macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root ) 321 if( EXISTS "${_root}" ) 322 file( GLOB __gccExePath RELATIVE "${_root}/bin/" "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) 323 __LIST_FILTER( __gccExePath "^[.].*" ) 324 list( LENGTH __gccExePath __gccExePathsCount ) 325 if( NOT __gccExePathsCount EQUAL 1 AND NOT _CMAKE_IN_TRY_COMPILE ) 326 message( WARNING "Could not determine machine name for compiler from ${_root}" ) 327 set( ${_var} "" ) 328 else() 329 get_filename_component( __gccExeName "${__gccExePath}" NAME_WE ) 330 string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" ) 331 endif() 332 unset( __gccExePath ) 333 unset( __gccExePathsCount ) 334 unset( __gccExeName ) 335 else() 336 set( ${_var} "" ) 337 endif() 338endmacro() 339 340 341# fight against cygwin 342set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") 343mark_as_advanced( ANDROID_FORBID_SYGWIN ) 344if( ANDROID_FORBID_SYGWIN ) 345 if( CYGWIN ) 346 message( FATAL_ERROR "Android NDK and android-cmake toolchain are not welcome Cygwin. It is unlikely that this cmake toolchain will work under cygwin. But if you want to try then you can set cmake variable ANDROID_FORBID_SYGWIN to FALSE and rerun cmake." ) 347 endif() 348 349 if( CMAKE_HOST_WIN32 ) 350 # remove cygwin from PATH 351 set( __new_path "$ENV{PATH}") 352 __LIST_FILTER( __new_path "cygwin" ) 353 set(ENV{PATH} "${__new_path}") 354 unset(__new_path) 355 endif() 356endif() 357 358 359# detect current host platform 360if( NOT DEFINED ANDROID_NDK_HOST_X64 AND (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64" OR CMAKE_HOST_APPLE) ) 361 set( ANDROID_NDK_HOST_X64 1 CACHE BOOL "Try to use 64-bit compiler toolchain" ) 362 mark_as_advanced( ANDROID_NDK_HOST_X64 ) 363endif() 364 365set( TOOL_OS_SUFFIX "" ) 366if( CMAKE_HOST_APPLE ) 367 set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86_64" ) 368 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "darwin-x86" ) 369elseif( CMAKE_HOST_WIN32 ) 370 set( ANDROID_NDK_HOST_SYSTEM_NAME "windows-x86_64" ) 371 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "windows" ) 372 set( TOOL_OS_SUFFIX ".exe" ) 373elseif( CMAKE_HOST_UNIX ) 374 set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86_64" ) 375 set( ANDROID_NDK_HOST_SYSTEM_NAME2 "linux-x86" ) 376else() 377 message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) 378endif() 379 380if( NOT ANDROID_NDK_HOST_X64 ) 381 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) 382endif() 383 384# see if we have path to Android NDK 385if( NOT ANDROID_NDK AND NOT ANDROID_STANDALONE_TOOLCHAIN ) 386 __INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK ) 387endif() 388if( NOT ANDROID_NDK ) 389 # see if we have path to Android standalone toolchain 390 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN ) 391 392 if( NOT ANDROID_STANDALONE_TOOLCHAIN ) 393 #try to find Android NDK in one of the the default locations 394 set( __ndkSearchPaths ) 395 foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} ) 396 foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} ) 397 list( APPEND __ndkSearchPaths "${__ndkSearchPath}/android-ndk${suffix}" ) 398 endforeach() 399 endforeach() 400 __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} ) 401 unset( __ndkSearchPaths ) 402 403 if( ANDROID_NDK ) 404 message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" ) 405 message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" ) 406 else() 407 #try to find Android standalone toolchain in one of the the default locations 408 __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) 409 410 if( ANDROID_STANDALONE_TOOLCHAIN ) 411 message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" ) 412 message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" ) 413 endif( ANDROID_STANDALONE_TOOLCHAIN ) 414 endif( ANDROID_NDK ) 415 endif( NOT ANDROID_STANDALONE_TOOLCHAIN ) 416endif( NOT ANDROID_NDK ) 417 418# remember found paths 419if( ANDROID_NDK ) 420 get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE ) 421 set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" FORCE ) 422 set( BUILD_WITH_ANDROID_NDK True ) 423 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT" ) 424 file( STRINGS "${ANDROID_NDK}/RELEASE.TXT" ANDROID_NDK_RELEASE_FULL LIMIT_COUNT 1 REGEX "r[0-9]+[a-z]?" ) 425 string( REGEX MATCH "r([0-9]+)([a-z]?)" ANDROID_NDK_RELEASE "${ANDROID_NDK_RELEASE_FULL}" ) 426 else() 427 set( ANDROID_NDK_RELEASE "r1x" ) 428 set( ANDROID_NDK_RELEASE_FULL "unreleased" ) 429 endif() 430 string( REGEX REPLACE "r([0-9]+)([a-z]?)" "\\1*1000" ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE}" ) 431 string( FIND " abcdefghijklmnopqastuvwxyz" "${CMAKE_MATCH_2}" __ndkReleaseLetterNum ) 432 math( EXPR ANDROID_NDK_RELEASE_NUM "${ANDROID_NDK_RELEASE_NUM}+${__ndkReleaseLetterNum}" ) 433elseif( ANDROID_STANDALONE_TOOLCHAIN ) 434 get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE ) 435 # try to detect change 436 if( CMAKE_AR ) 437 string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length ) 438 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath ) 439 if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN ) 440 message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." ) 441 endif() 442 unset( __androidStandaloneToolchainPreviousPath ) 443 unset( __length ) 444 endif() 445 set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" FORCE ) 446 set( BUILD_WITH_STANDALONE_TOOLCHAIN True ) 447else() 448 list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH) 449 message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolchain. 450 You should either set an environment variable: 451 export ANDROID_NDK=~/my-android-ndk 452 or 453 export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain 454 or put the toolchain or NDK in the default path: 455 sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH}/android-ndk 456 sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) 457endif() 458 459# android NDK layout 460if( BUILD_WITH_ANDROID_NDK ) 461 if( NOT DEFINED ANDROID_NDK_LAYOUT ) 462 # try to automatically detect the layout 463 if( EXISTS "${ANDROID_NDK}/RELEASE.TXT") 464 set( ANDROID_NDK_LAYOUT "RELEASE" ) 465 elseif( EXISTS "${ANDROID_NDK}/../../linux-x86/toolchain/" ) 466 set( ANDROID_NDK_LAYOUT "LINARO" ) 467 elseif( EXISTS "${ANDROID_NDK}/../../gcc/" ) 468 set( ANDROID_NDK_LAYOUT "ANDROID" ) 469 endif() 470 endif() 471 set( ANDROID_NDK_LAYOUT "${ANDROID_NDK_LAYOUT}" CACHE STRING "The inner layout of NDK" ) 472 mark_as_advanced( ANDROID_NDK_LAYOUT ) 473 if( ANDROID_NDK_LAYOUT STREQUAL "LINARO" ) 474 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 475 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../${ANDROID_NDK_HOST_SYSTEM_NAME}/toolchain" ) 476 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 477 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 478 elseif( ANDROID_NDK_LAYOUT STREQUAL "ANDROID" ) 479 set( ANDROID_NDK_HOST_SYSTEM_NAME ${ANDROID_NDK_HOST_SYSTEM_NAME2} ) # only 32-bit at the moment 480 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/../../gcc/${ANDROID_NDK_HOST_SYSTEM_NAME}/arm" ) 481 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "" ) 482 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "" ) 483 else() # ANDROID_NDK_LAYOUT STREQUAL "RELEASE" 484 set( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK}/toolchains" ) 485 set( ANDROID_NDK_TOOLCHAINS_SUBPATH "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) 486 set( ANDROID_NDK_TOOLCHAINS_SUBPATH2 "/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME2}" ) 487 endif() 488 get_filename_component( ANDROID_NDK_TOOLCHAINS_PATH "${ANDROID_NDK_TOOLCHAINS_PATH}" ABSOLUTE ) 489 490 # try to detect change of NDK 491 if( CMAKE_AR ) 492 string( LENGTH "${ANDROID_NDK_TOOLCHAINS_PATH}" __length ) 493 string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) 494 if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK_TOOLCHAINS_PATH ) 495 message( FATAL_ERROR "It is not possible to change the path to the NDK on subsequent CMake run. You must remove all generated files from your build folder first. 496 " ) 497 endif() 498 unset( __androidNdkPreviousPath ) 499 unset( __length ) 500 endif() 501endif() 502 503 504# get all the details about standalone toolchain 505if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 506 __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) 507 set( ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 508 set( __availableToolchains "standalone" ) 509 __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" ) 510 if( NOT __availableToolchainMachines ) 511 message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." ) 512 endif() 513 if( __availableToolchainMachines MATCHES x86_64 ) 514 set( __availableToolchainArchs "x86_64" ) 515 elseif( __availableToolchainMachines MATCHES i686 ) 516 set( __availableToolchainArchs "x86" ) 517 elseif( __availableToolchainMachines MATCHES aarch64 ) 518 set( __availableToolchainArchs "arm64" ) 519 elseif( __availableToolchainMachines MATCHES arm ) 520 set( __availableToolchainArchs "arm" ) 521 elseif( __availableToolchainMachines MATCHES mips64el ) 522 set( __availableToolchainArchs "mips64" ) 523 elseif( __availableToolchainMachines MATCHES mipsel ) 524 set( __availableToolchainArchs "mips" ) 525 endif() 526 execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" -dumpversion 527 OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) 528 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9]+)?" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) 529 if( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/bin/clang${TOOL_OS_SUFFIX}" ) 530 list( APPEND __availableToolchains "standalone-clang" ) 531 list( APPEND __availableToolchainMachines ${__availableToolchainMachines} ) 532 list( APPEND __availableToolchainArchs ${__availableToolchainArchs} ) 533 list( APPEND __availableToolchainCompilerVersions ${__availableToolchainCompilerVersions} ) 534 endif() 535endif() 536 537macro( __GLOB_NDK_TOOLCHAINS __availableToolchainsVar __availableToolchainsLst __toolchain_subpath ) 538 foreach( __toolchain ${${__availableToolchainsLst}} ) 539 if( "${__toolchain}" MATCHES "-clang3[.][0-9]$" AND NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}${__toolchain_subpath}" ) 540 SET( __toolchainVersionRegex "^TOOLCHAIN_VERSION[\t ]+:=[\t ]+(.*)$" ) 541 FILE( STRINGS "${ANDROID_NDK_TOOLCHAINS_PATH}/${__toolchain}/setup.mk" __toolchainVersionStr REGEX "${__toolchainVersionRegex}" ) 542 if( __toolchainVersionStr ) 543 string( REGEX REPLACE "${__toolchainVersionRegex}" "\\1" __toolchainVersionStr "${__toolchainVersionStr}" ) 544 string( REGEX REPLACE "-clang3[.][0-9]$" "-${__toolchainVersionStr}" __gcc_toolchain "${__toolchain}" ) 545 else() 546 string( REGEX REPLACE "-clang3[.][0-9]$" "-4.6" __gcc_toolchain "${__toolchain}" ) 547 endif() 548 unset( __toolchainVersionStr ) 549 unset( __toolchainVersionRegex ) 550 else() 551 set( __gcc_toolchain "${__toolchain}" ) 552 endif() 553 __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK_TOOLCHAINS_PATH}/${__gcc_toolchain}${__toolchain_subpath}" ) 554 if( __machine ) 555 string( REGEX MATCH "[0-9]+[.][0-9]+([.][0-9x]+)?$" __version "${__gcc_toolchain}" ) 556 if( __machine MATCHES x86_64 ) 557 set( __arch "x86_64" ) 558 elseif( __machine MATCHES i686 ) 559 set( __arch "x86" ) 560 elseif( __machine MATCHES aarch64 ) 561 set( __arch "arm64" ) 562 elseif( __machine MATCHES arm ) 563 set( __arch "arm" ) 564 elseif( __machine MATCHES mips64el ) 565 set( __arch "mips64" ) 566 elseif( __machine MATCHES mipsel ) 567 set( __arch "mips" ) 568 else() 569 set( __arch "" ) 570 endif() 571 #message("machine: !${__machine}!\narch: !${__arch}!\nversion: !${__version}!\ntoolchain: !${__toolchain}!\n") 572 if (__arch) 573 list( APPEND __availableToolchainMachines "${__machine}" ) 574 list( APPEND __availableToolchainArchs "${__arch}" ) 575 list( APPEND __availableToolchainCompilerVersions "${__version}" ) 576 list( APPEND ${__availableToolchainsVar} "${__toolchain}" ) 577 endif() 578 endif() 579 unset( __gcc_toolchain ) 580 endforeach() 581endmacro() 582 583# get all the details about NDK 584if( BUILD_WITH_ANDROID_NDK ) 585 file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" ) 586 string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) 587 set( __availableToolchains "" ) 588 set( __availableToolchainMachines "" ) 589 set( __availableToolchainArchs "" ) 590 set( __availableToolchainCompilerVersions "" ) 591 if( ANDROID_TOOLCHAIN_NAME AND EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_TOOLCHAIN_NAME}/" ) 592 # do not go through all toolchains if we know the name 593 set( __availableToolchainsLst "${ANDROID_TOOLCHAIN_NAME}" ) 594 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 595 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 596 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 597 if( __availableToolchains ) 598 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 599 endif() 600 endif() 601 endif() 602 if( NOT __availableToolchains ) 603 file( GLOB __availableToolchainsLst RELATIVE "${ANDROID_NDK_TOOLCHAINS_PATH}" "${ANDROID_NDK_TOOLCHAINS_PATH}/*" ) 604 if( __availableToolchainsLst ) 605 list(SORT __availableToolchainsLst) # we need clang to go after gcc 606 endif() 607 __LIST_FILTER( __availableToolchainsLst "^[.]" ) 608 __LIST_FILTER( __availableToolchainsLst "llvm" ) 609 __LIST_FILTER( __availableToolchainsLst "renderscript" ) 610 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 611 if( NOT __availableToolchains AND NOT ANDROID_NDK_TOOLCHAINS_SUBPATH STREQUAL ANDROID_NDK_TOOLCHAINS_SUBPATH2 ) 612 __GLOB_NDK_TOOLCHAINS( __availableToolchains __availableToolchainsLst "${ANDROID_NDK_TOOLCHAINS_SUBPATH2}" ) 613 if( __availableToolchains ) 614 set( ANDROID_NDK_TOOLCHAINS_SUBPATH ${ANDROID_NDK_TOOLCHAINS_SUBPATH2} ) 615 endif() 616 endif() 617 endif() 618 if( NOT __availableToolchains ) 619 message( FATAL_ERROR "Could not find any working toolchain in the NDK. Probably your Android NDK is broken." ) 620 endif() 621endif() 622 623# build list of available ABIs 624set( ANDROID_SUPPORTED_ABIS "" ) 625set( __uniqToolchainArchNames ${__availableToolchainArchs} ) 626list( REMOVE_DUPLICATES __uniqToolchainArchNames ) 627list( SORT __uniqToolchainArchNames ) 628foreach( __arch ${__uniqToolchainArchNames} ) 629 list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} ) 630endforeach() 631unset( __uniqToolchainArchNames ) 632if( NOT ANDROID_SUPPORTED_ABIS ) 633 message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." ) 634endif() 635 636# choose target ABI 637__INIT_VARIABLE( ANDROID_ABI VALUES ${ANDROID_SUPPORTED_ABIS} ) 638# verify that target ABI is supported 639list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx ) 640if( __androidAbiIdx EQUAL -1 ) 641 string( REPLACE ";" "\", \"" PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" ) 642 message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain. 643 Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\" 644 " ) 645endif() 646unset( __androidAbiIdx ) 647 648# set target ABI options 649if( ANDROID_ABI STREQUAL "x86" ) 650 set( X86 true ) 651 set( ANDROID_NDK_ABI_NAME "x86" ) 652 set( ANDROID_ARCH_NAME "x86" ) 653 set( ANDROID_LLVM_TRIPLE "i686-none-linux-android" ) 654 set( CMAKE_SYSTEM_PROCESSOR "i686" ) 655elseif( ANDROID_ABI STREQUAL "x86_64" ) 656 set( X86 true ) 657 set( X86_64 true ) 658 set( ANDROID_NDK_ABI_NAME "x86_64" ) 659 set( ANDROID_ARCH_NAME "x86_64" ) 660 set( CMAKE_SYSTEM_PROCESSOR "x86_64" ) 661 set( ANDROID_LLVM_TRIPLE "x86_64-none-linux-android" ) 662elseif( ANDROID_ABI STREQUAL "mips64" ) 663 set( MIPS64 true ) 664 set( ANDROID_NDK_ABI_NAME "mips64" ) 665 set( ANDROID_ARCH_NAME "mips64" ) 666 set( ANDROID_LLVM_TRIPLE "mips64el-none-linux-android" ) 667 set( CMAKE_SYSTEM_PROCESSOR "mips64" ) 668elseif( ANDROID_ABI STREQUAL "mips" ) 669 set( MIPS true ) 670 set( ANDROID_NDK_ABI_NAME "mips" ) 671 set( ANDROID_ARCH_NAME "mips" ) 672 set( ANDROID_LLVM_TRIPLE "mipsel-none-linux-android" ) 673 set( CMAKE_SYSTEM_PROCESSOR "mips" ) 674elseif( ANDROID_ABI STREQUAL "arm64-v8a" ) 675 set( ARM64_V8A true ) 676 set( ANDROID_NDK_ABI_NAME "arm64-v8a" ) 677 set( ANDROID_ARCH_NAME "arm64" ) 678 set( ANDROID_LLVM_TRIPLE "aarch64-none-linux-android" ) 679 set( CMAKE_SYSTEM_PROCESSOR "aarch64" ) 680 set( VFPV3 true ) 681 set( NEON true ) 682elseif( ANDROID_ABI STREQUAL "armeabi" ) 683 set( ARMEABI true ) 684 set( ANDROID_NDK_ABI_NAME "armeabi" ) 685 set( ANDROID_ARCH_NAME "arm" ) 686 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 687 set( CMAKE_SYSTEM_PROCESSOR "armv5te" ) 688elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" ) 689 set( ARMEABI_V6 true ) 690 set( ANDROID_NDK_ABI_NAME "armeabi" ) 691 set( ANDROID_ARCH_NAME "arm" ) 692 set( ANDROID_LLVM_TRIPLE "armv5te-none-linux-androideabi" ) 693 set( CMAKE_SYSTEM_PROCESSOR "armv6" ) 694 # need always fallback to older platform 695 set( ARMEABI true ) 696elseif( ANDROID_ABI STREQUAL "armeabi-v7a") 697 set( ARMEABI_V7A true ) 698 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 699 set( ANDROID_ARCH_NAME "arm" ) 700 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 701 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 702elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" ) 703 set( ARMEABI_V7A true ) 704 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 705 set( ANDROID_ARCH_NAME "arm" ) 706 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 707 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 708 set( VFPV3 true ) 709elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" ) 710 set( ARMEABI_V7A true ) 711 set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) 712 set( ANDROID_ARCH_NAME "arm" ) 713 set( ANDROID_LLVM_TRIPLE "armv7-none-linux-androideabi" ) 714 set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) 715 set( VFPV3 true ) 716 set( NEON true ) 717else() 718 message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." ) 719endif() 720 721if( CMAKE_BINARY_DIR AND EXISTS "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" ) 722 # really dirty hack 723 # it is not possible to change CMAKE_SYSTEM_PROCESSOR after the first run... 724 file( APPEND "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeSystem.cmake" "SET(CMAKE_SYSTEM_PROCESSOR \"${CMAKE_SYSTEM_PROCESSOR}\")\n" ) 725endif() 726 727if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 ) 728 __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD VALUES OFF ) 729 set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE ) 730 mark_as_advanced( ANDROID_FORCE_ARM_BUILD ) 731else() 732 unset( ANDROID_FORCE_ARM_BUILD CACHE ) 733endif() 734 735# choose toolchain 736if( ANDROID_TOOLCHAIN_NAME ) 737 list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx ) 738 if( __toolchainIdx EQUAL -1 ) 739 list( SORT __availableToolchains ) 740 string( REPLACE ";" "\n * " toolchains_list "${__availableToolchains}" ) 741 set( toolchains_list " * ${toolchains_list}") 742 message( FATAL_ERROR "Specified toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing in your NDK or broken. Please verify that your NDK is working or select another compiler toolchain. 743To configure the toolchain set CMake variable ANDROID_TOOLCHAIN_NAME to one of the following values:\n${toolchains_list}\n" ) 744 endif() 745 list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) 746 if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 747 message( SEND_ERROR "Selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." ) 748 endif() 749else() 750 set( __toolchainIdx -1 ) 751 set( __applicableToolchains "" ) 752 set( __toolchainMaxVersion "0.0.0" ) 753 list( LENGTH __availableToolchains __availableToolchainsCount ) 754 math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" ) 755 foreach( __idx RANGE ${__availableToolchainsCount} ) 756 list( GET __availableToolchainArchs ${__idx} __toolchainArch ) 757 if( __toolchainArch STREQUAL ANDROID_ARCH_NAME ) 758 list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) 759 string( REPLACE "x" "99" __toolchainVersion "${__toolchainVersion}") 760 if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion ) 761 set( __toolchainMaxVersion "${__toolchainVersion}" ) 762 set( __toolchainIdx ${__idx} ) 763 endif() 764 endif() 765 endforeach() 766 unset( __availableToolchainsCount ) 767 unset( __toolchainMaxVersion ) 768 unset( __toolchainVersion ) 769endif() 770unset( __toolchainArch ) 771if( __toolchainIdx EQUAL -1 ) 772 message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." ) 773endif() 774list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME ) 775list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME ) 776list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION ) 777 778unset( __toolchainIdx ) 779unset( __availableToolchains ) 780unset( __availableToolchainMachines ) 781unset( __availableToolchainArchs ) 782unset( __availableToolchainCompilerVersions ) 783 784# choose native API level 785__INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_STANDALONE_TOOLCHAIN_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) 786string( REPLACE "android-" "" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) 787string( STRIP "${ANDROID_NATIVE_API_LEVEL}" ANDROID_NATIVE_API_LEVEL ) 788# adjust API level 789set( __real_api_level ${ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME}} ) 790foreach( __level ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 791 if( (__level LESS ANDROID_NATIVE_API_LEVEL OR __level STREQUAL ANDROID_NATIVE_API_LEVEL) AND NOT __level LESS __real_api_level ) 792 set( __real_api_level ${__level} ) 793 endif() 794endforeach() 795if( __real_api_level AND NOT ANDROID_NATIVE_API_LEVEL STREQUAL __real_api_level ) 796 message( STATUS "Adjusting Android API level 'android-${ANDROID_NATIVE_API_LEVEL}' to 'android-${__real_api_level}'") 797 set( ANDROID_NATIVE_API_LEVEL ${__real_api_level} ) 798endif() 799unset(__real_api_level) 800# validate 801list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) 802if( __levelIdx EQUAL -1 ) 803 message( SEND_ERROR "Specified Android native API level 'android-${ANDROID_NATIVE_API_LEVEL}' is not supported by your NDK/toolchain." ) 804else() 805 if( BUILD_WITH_ANDROID_NDK ) 806 __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" ) 807 if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL AND NOT __realApiLevel GREATER 9000 ) 808 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." ) 809 endif() 810 unset( __realApiLevel ) 811 endif() 812 set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE ) 813 set( CMAKE_ANDROID_API ${ANDROID_NATIVE_API_LEVEL} ) 814 if( CMAKE_VERSION VERSION_GREATER "2.8" ) 815 list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS ) 816 set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) 817 endif() 818endif() 819unset( __levelIdx ) 820 821 822# remember target ABI 823set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) 824if( CMAKE_VERSION VERSION_GREATER "2.8" ) 825 list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} ) 826 set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} ) 827endif() 828 829 830# runtime choice (STL, rtti, exceptions) 831if( NOT ANDROID_STL ) 832 set( ANDROID_STL gnustl_static ) 833endif() 834set( ANDROID_STL "${ANDROID_STL}" CACHE STRING "C++ runtime" ) 835set( ANDROID_STL_FORCE_FEATURES ON CACHE BOOL "automatically configure rtti and exceptions support based on C++ runtime" ) 836mark_as_advanced( ANDROID_STL ANDROID_STL_FORCE_FEATURES ) 837 838if( BUILD_WITH_ANDROID_NDK ) 839 if( NOT "${ANDROID_STL}" MATCHES "^(none|system|system_re|gabi\\+\\+_static|gabi\\+\\+_shared|stlport_static|stlport_shared|gnustl_static|gnustl_shared)$") 840 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 841The possible values are: 842 none -> Do not configure the runtime. 843 system -> Use the default minimal system C++ runtime library. 844 system_re -> Same as system but with rtti and exceptions. 845 gabi++_static -> Use the GAbi++ runtime as a static library. 846 gabi++_shared -> Use the GAbi++ runtime as a shared library. 847 stlport_static -> Use the STLport runtime as a static library. 848 stlport_shared -> Use the STLport runtime as a shared library. 849 gnustl_static -> (default) Use the GNU STL as a static library. 850 gnustl_shared -> Use the GNU STL as a shared library. 851" ) 852 endif() 853elseif( BUILD_WITH_STANDALONE_TOOLCHAIN ) 854 if( NOT "${ANDROID_STL}" MATCHES "^(none|gnustl_static|gnustl_shared)$") 855 message( FATAL_ERROR "ANDROID_STL is set to invalid value \"${ANDROID_STL}\". 856The possible values are: 857 none -> Do not configure the runtime. 858 gnustl_static -> (default) Use the GNU STL as a static library. 859 gnustl_shared -> Use the GNU STL as a shared library. 860" ) 861 endif() 862endif() 863 864unset( ANDROID_RTTI ) 865unset( ANDROID_EXCEPTIONS ) 866unset( ANDROID_STL_INCLUDE_DIRS ) 867unset( __libstl ) 868unset( __libsupcxx ) 869 870if( NOT _CMAKE_IN_TRY_COMPILE AND ANDROID_NDK_RELEASE STREQUAL "r7b" AND ARMEABI_V7A AND NOT VFPV3 AND ANDROID_STL MATCHES "gnustl" ) 871 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). 872You are strongly recommended to switch to another NDK release. 873" ) 874endif() 875 876if( NOT _CMAKE_IN_TRY_COMPILE AND X86 AND ANDROID_STL MATCHES "gnustl" AND ANDROID_NDK_RELEASE STREQUAL "r6" ) 877 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: 878See https://android.googlesource.com/platform/development.git f907f4f9d4e56ccc8093df6fee54454b8bcab6c2 879 diff --git a/ndk/platforms/android-9/arch-x86/include/machine/_types.h b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 880 index 5e28c64..65892a1 100644 881 --- a/ndk/platforms/android-9/arch-x86/include/machine/_types.h 882 +++ b/ndk/platforms/android-9/arch-x86/include/machine/_types.h 883 @@ -51,7 +51,11 @@ typedef long int ssize_t; 884 #endif 885 #ifndef _PTRDIFF_T 886 #define _PTRDIFF_T 887 -typedef long ptrdiff_t; 888 +# ifdef __ANDROID__ 889 + typedef int ptrdiff_t; 890 +# else 891 + typedef long ptrdiff_t; 892 +# endif 893 #endif 894" ) 895endif() 896 897 898# setup paths and STL for standalone toolchain 899if( BUILD_WITH_STANDALONE_TOOLCHAIN ) 900 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 901 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) 902 set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) 903 904 if( NOT ANDROID_STL STREQUAL "none" ) 905 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/include/c++/${ANDROID_COMPILER_VERSION}" ) 906 if( NOT EXISTS "${ANDROID_STL_INCLUDE_DIRS}" ) 907 # old location ( pre r8c ) 908 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}" ) 909 endif() 910 if( ARMEABI_V7A AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) 911 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) 912 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) 913 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) 914 else() 915 list( APPEND ANDROID_STL_INCLUDE_DIRS "${ANDROID_STL_INCLUDE_DIRS}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) 916 endif() 917 # always search static GNU STL to get the location of libsupc++.a 918 if( ARMEABI_V7A AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) 919 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) 920 elseif( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) 921 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}" ) 922 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libstdc++.a" ) 923 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb" ) 924 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libstdc++.a" ) 925 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) 926 endif() 927 if( __libstl ) 928 set( __libsupcxx "${__libstl}/libsupc++.a" ) 929 set( __libstl "${__libstl}/libstdc++.a" ) 930 endif() 931 if( NOT EXISTS "${__libsupcxx}" ) 932 message( FATAL_ERROR "The required libstdsupc++.a is missing in your standalone toolchain. 933 Usually it happens because of bug in make-standalone-toolchain.sh script from NDK r7, r7b and r7c. 934 You need to either upgrade to newer NDK or manually copy 935 $ANDROID_NDK/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a 936 to 937 ${__libsupcxx} 938 " ) 939 endif() 940 if( ANDROID_STL STREQUAL "gnustl_shared" ) 941 if( ARMEABI_V7A AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 942 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libgnustl_shared.so" ) 943 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD AND EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 944 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libgnustl_shared.so" ) 945 elseif( EXISTS "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 946 set( __libstl "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libgnustl_shared.so" ) 947 endif() 948 endif() 949 endif() 950endif() 951 952# clang 953if( "${ANDROID_TOOLCHAIN_NAME}" STREQUAL "standalone-clang" ) 954 set( ANDROID_COMPILER_IS_CLANG 1 ) 955 execute_process( COMMAND "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/clang${TOOL_OS_SUFFIX}" --version OUTPUT_VARIABLE ANDROID_CLANG_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE ) 956 string( REGEX MATCH "[0-9]+[.][0-9]+" ANDROID_CLANG_VERSION "${ANDROID_CLANG_VERSION}") 957elseif( "${ANDROID_TOOLCHAIN_NAME}" MATCHES "-clang3[.][0-9]?$" ) 958 string( REGEX MATCH "3[.][0-9]$" ANDROID_CLANG_VERSION "${ANDROID_TOOLCHAIN_NAME}") 959 string( REGEX REPLACE "-clang${ANDROID_CLANG_VERSION}$" "-${ANDROID_COMPILER_VERSION}" ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 960 if( NOT EXISTS "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}/bin/clang${TOOL_OS_SUFFIX}" ) 961 message( FATAL_ERROR "Could not find the Clang compiler driver" ) 962 endif() 963 set( ANDROID_COMPILER_IS_CLANG 1 ) 964 set( ANDROID_CLANG_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/llvm-${ANDROID_CLANG_VERSION}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 965else() 966 set( ANDROID_GCC_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" ) 967 unset( ANDROID_COMPILER_IS_CLANG CACHE ) 968endif() 969 970string( REPLACE "." "" _clang_name "clang${ANDROID_CLANG_VERSION}" ) 971if( NOT EXISTS "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" ) 972 set( _clang_name "clang" ) 973endif() 974 975 976# setup paths and STL for NDK 977if( BUILD_WITH_ANDROID_NDK ) 978 set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}${ANDROID_NDK_TOOLCHAINS_SUBPATH}" ) 979 set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) 980 981 if( ANDROID_STL STREQUAL "none" ) 982 # do nothing 983 elseif( ANDROID_STL STREQUAL "system" ) 984 set( ANDROID_RTTI OFF ) 985 set( ANDROID_EXCEPTIONS OFF ) 986 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 987 elseif( ANDROID_STL STREQUAL "system_re" ) 988 set( ANDROID_RTTI ON ) 989 set( ANDROID_EXCEPTIONS ON ) 990 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/system/include" ) 991 elseif( ANDROID_STL MATCHES "gabi" ) 992 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 993 message( FATAL_ERROR "gabi++ is not available in your NDK. You have to upgrade to NDK r7 or newer to use gabi++.") 994 endif() 995 set( ANDROID_RTTI ON ) 996 set( ANDROID_EXCEPTIONS OFF ) 997 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/gabi++/include" ) 998 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gabi++/libs/${ANDROID_NDK_ABI_NAME}/libgabi++_static.a" ) 999 elseif( ANDROID_STL MATCHES "stlport" ) 1000 if( NOT ANDROID_NDK_RELEASE_NUM LESS 8004 ) # before r8d 1001 set( ANDROID_EXCEPTIONS ON ) 1002 else() 1003 set( ANDROID_EXCEPTIONS OFF ) 1004 endif() 1005 if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1006 set( ANDROID_RTTI OFF ) 1007 else() 1008 set( ANDROID_RTTI ON ) 1009 endif() 1010 set( ANDROID_STL_INCLUDE_DIRS "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) 1011 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) 1012 elseif( ANDROID_STL MATCHES "gnustl" ) 1013 set( ANDROID_EXCEPTIONS ON ) 1014 set( ANDROID_RTTI ON ) 1015 if( EXISTS "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1016 if( ARMEABI_V7A AND ANDROID_COMPILER_VERSION VERSION_EQUAL "4.7" AND ANDROID_NDK_RELEASE STREQUAL "r8d" ) 1017 # gnustl binary for 4.7 compiler is buggy :( 1018 # TODO: look for right fix 1019 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/4.6" ) 1020 else() 1021 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}" ) 1022 endif() 1023 else() 1024 set( __libstl "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" ) 1025 endif() 1026 set( ANDROID_STL_INCLUDE_DIRS "${__libstl}/include" "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/include" "${__libstl}/include/backward" ) 1027 if( EXISTS "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1028 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libgnustl_static.a" ) 1029 else() 1030 set( __libstl "${__libstl}/libs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) 1031 endif() 1032 else() 1033 message( FATAL_ERROR "Unknown runtime: ${ANDROID_STL}" ) 1034 endif() 1035 # find libsupc++.a - rtti & exceptions 1036 if( ANDROID_STL STREQUAL "system_re" OR ANDROID_STL MATCHES "gnustl" ) 1037 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/${ANDROID_COMPILER_VERSION}/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r8b or newer 1038 if( NOT EXISTS "${__libsupcxx}" ) 1039 set( __libsupcxx "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) # r7-r8 1040 endif() 1041 if( NOT EXISTS "${__libsupcxx}" ) # before r7 1042 if( ARMEABI_V7A ) 1043 if( ANDROID_FORCE_ARM_BUILD ) 1044 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) 1045 else() 1046 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) 1047 endif() 1048 elseif( ARMEABI AND NOT ANDROID_FORCE_ARM_BUILD ) 1049 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) 1050 else() 1051 set( __libsupcxx "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) 1052 endif() 1053 endif() 1054 if( NOT EXISTS "${__libsupcxx}") 1055 message( ERROR "Could not find libsupc++.a for a chosen platform. Either your NDK is not supported or is broken.") 1056 endif() 1057 endif() 1058endif() 1059 1060 1061# case of shared STL linkage 1062if( ANDROID_STL MATCHES "shared" AND DEFINED __libstl ) 1063 string( REPLACE "_static.a" "_shared.so" __libstl "${__libstl}" ) 1064 # TODO: check if .so file exists before the renaming 1065endif() 1066 1067 1068# ccache support 1069__INIT_VARIABLE( _ndk_ccache NDK_CCACHE ENV_NDK_CCACHE ) 1070if( _ndk_ccache ) 1071 if( DEFINED NDK_CCACHE AND NOT EXISTS NDK_CCACHE ) 1072 unset( NDK_CCACHE CACHE ) 1073 endif() 1074 find_program( NDK_CCACHE "${_ndk_ccache}" DOC "The path to ccache binary") 1075else() 1076 unset( NDK_CCACHE CACHE ) 1077endif() 1078unset( _ndk_ccache ) 1079 1080 1081# setup the cross-compiler 1082if( NOT CMAKE_C_COMPILER ) 1083 if( NDK_CCACHE AND NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1084 set( CMAKE_C_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C compiler" ) 1085 set( CMAKE_CXX_COMPILER "${NDK_CCACHE}" CACHE PATH "ccache as C++ compiler" ) 1086 if( ANDROID_COMPILER_IS_CLANG ) 1087 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1088 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1089 else() 1090 set( CMAKE_C_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1091 set( CMAKE_CXX_COMPILER_ARG1 "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1092 endif() 1093 else() 1094 if( ANDROID_COMPILER_IS_CLANG ) 1095 set( CMAKE_C_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}${TOOL_OS_SUFFIX}" CACHE PATH "C compiler") 1096 set( CMAKE_CXX_COMPILER "${ANDROID_CLANG_TOOLCHAIN_ROOT}/bin/${_clang_name}++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler") 1097 else() 1098 set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "C compiler" ) 1099 set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "C++ compiler" ) 1100 endif() 1101 endif() 1102 set( CMAKE_ASM_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "assembler" ) 1103 set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" ) 1104 if( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" ) 1105 # Use gcc-ar if we have it for better LTO support. 1106 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) 1107 else() 1108 set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) 1109 endif() 1110 set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" ) 1111 set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" ) 1112 set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" ) 1113 set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" ) 1114 set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) 1115endif() 1116 1117set( _CMAKE_TOOLCHAIN_PREFIX "${ANDROID_TOOLCHAIN_MACHINE_NAME}-" ) 1118if( CMAKE_VERSION VERSION_LESS 2.8.5 ) 1119 set( CMAKE_ASM_COMPILER_ARG1 "-c" ) 1120endif() 1121if( APPLE ) 1122 find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool ) 1123 if( NOT CMAKE_INSTALL_NAME_TOOL ) 1124 message( FATAL_ERROR "Could not find install_name_tool, please check your installation." ) 1125 endif() 1126 mark_as_advanced( CMAKE_INSTALL_NAME_TOOL ) 1127endif() 1128 1129# Force set compilers because standard identification works badly for us 1130#include( CMakeForceCompiler ) 1131#CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) 1132if( ANDROID_COMPILER_IS_CLANG ) 1133 set( CMAKE_C_COMPILER_ID Clang ) 1134endif() 1135set( CMAKE_C_PLATFORM_ID Linux ) 1136if( X86_64 OR MIPS64 OR ARM64_V8A ) 1137 set( CMAKE_C_SIZEOF_DATA_PTR 8 ) 1138else() 1139 set( CMAKE_C_SIZEOF_DATA_PTR 4 ) 1140endif() 1141set( CMAKE_C_HAS_ISYSROOT 1 ) 1142set( CMAKE_C_COMPILER_ABI ELF ) 1143#CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) 1144if( ANDROID_COMPILER_IS_CLANG ) 1145 set( CMAKE_CXX_COMPILER_ID Clang) 1146endif() 1147set( CMAKE_CXX_PLATFORM_ID Linux ) 1148set( CMAKE_CXX_SIZEOF_DATA_PTR ${CMAKE_C_SIZEOF_DATA_PTR} ) 1149set( CMAKE_CXX_HAS_ISYSROOT 1 ) 1150set( CMAKE_CXX_COMPILER_ABI ELF ) 1151set( CMAKE_CXX_SOURCE_FILE_EXTENSIONS cc cp cxx cpp CPP c++ C ) 1152# force ASM compiler (required for CMake < 2.8.5) 1153set( CMAKE_ASM_COMPILER_ID_RUN TRUE ) 1154set( CMAKE_ASM_COMPILER_ID GNU ) 1155set( CMAKE_ASM_COMPILER_WORKS TRUE ) 1156set( CMAKE_ASM_COMPILER_FORCED TRUE ) 1157set( CMAKE_COMPILER_IS_GNUASM 1) 1158set( CMAKE_ASM_SOURCE_FILE_EXTENSIONS s S asm ) 1159 1160foreach( lang C CXX ASM ) 1161 if( ANDROID_COMPILER_IS_CLANG ) 1162 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_CLANG_VERSION} ) 1163 else() 1164 set( CMAKE_${lang}_COMPILER_VERSION ${ANDROID_COMPILER_VERSION} ) 1165 endif() 1166endforeach() 1167 1168# flags and definitions 1169remove_definitions( -DANDROID ) 1170add_definitions( -DANDROID ) 1171 1172if( ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1173 if( CMAKE_HOST_WIN32 ) 1174 # try to convert path to 8.3 form 1175 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "@echo %~s1" ) 1176 execute_process( COMMAND "$ENV{ComSpec}" /c "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/cvt83.cmd" "${ANDROID_SYSROOT}" 1177 OUTPUT_VARIABLE __path OUTPUT_STRIP_TRAILING_WHITESPACE 1178 RESULT_VARIABLE __result ERROR_QUIET ) 1179 if( __result EQUAL 0 ) 1180 file( TO_CMAKE_PATH "${__path}" ANDROID_SYSROOT ) 1181 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1182 else() 1183 set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) 1184 endif() 1185 else() 1186 set( ANDROID_CXX_FLAGS "'--sysroot=${ANDROID_SYSROOT}'" ) 1187 endif() 1188 if( NOT _CMAKE_IN_TRY_COMPILE ) 1189 # quotes can break try_compile and compiler identification 1190 message(WARNING "Path to your Android NDK (or toolchain) has non-alphanumeric symbols.\nThe build might be broken.\n") 1191 endif() 1192else() 1193 set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) 1194endif() 1195 1196# NDK flags 1197if (ARM64_V8A ) 1198 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1199 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1200 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1201 if( NOT ANDROID_COMPILER_IS_CLANG ) 1202 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1203 endif() 1204elseif( ARMEABI OR ARMEABI_V7A) 1205 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1206 if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) 1207 set( ANDROID_CXX_FLAGS_RELEASE "-mthumb -fomit-frame-pointer -fno-strict-aliasing" ) 1208 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1209 if( NOT ANDROID_COMPILER_IS_CLANG ) 1210 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -finline-limit=64" ) 1211 endif() 1212 else() 1213 # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI 1214 set( ANDROID_CXX_FLAGS_RELEASE "-marm -fomit-frame-pointer -fstrict-aliasing" ) 1215 set( ANDROID_CXX_FLAGS_DEBUG "-marm -fno-omit-frame-pointer -fno-strict-aliasing" ) 1216 if( NOT ANDROID_COMPILER_IS_CLANG ) 1217 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1218 endif() 1219 endif() 1220elseif( X86 OR X86_64 ) 1221 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funwind-tables" ) 1222 if( NOT ANDROID_COMPILER_IS_CLANG ) 1223 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -funswitch-loops -finline-limit=300" ) 1224 endif() 1225 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer -fstrict-aliasing" ) 1226 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer -fno-strict-aliasing" ) 1227elseif( MIPS OR MIPS64 ) 1228 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-strict-aliasing -finline-functions -funwind-tables -fmessage-length=0" ) 1229 set( ANDROID_CXX_FLAGS_RELEASE "-fomit-frame-pointer" ) 1230 set( ANDROID_CXX_FLAGS_DEBUG "-fno-omit-frame-pointer" ) 1231 if( NOT ANDROID_COMPILER_IS_CLANG ) 1232 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers" ) 1233 set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} -funswitch-loops -finline-limit=300" ) 1234 endif() 1235elseif() 1236 set( ANDROID_CXX_FLAGS_RELEASE "" ) 1237 set( ANDROID_CXX_FLAGS_DEBUG "" ) 1238endif() 1239 1240set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) # good/necessary when porting desktop libraries 1241 1242if( NOT X86 AND NOT ANDROID_COMPILER_IS_CLANG ) 1243 set( ANDROID_CXX_FLAGS "-Wno-psabi ${ANDROID_CXX_FLAGS}" ) 1244endif() 1245 1246if( NOT ANDROID_COMPILER_VERSION VERSION_LESS "4.6" ) 1247 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -no-canonical-prefixes" ) # see https://android-review.googlesource.com/#/c/47564/ 1248endif() 1249 1250# ABI-specific flags 1251if( ARMEABI_V7A ) 1252 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) 1253 if( NEON ) 1254 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" ) 1255 elseif( VFPV3 ) 1256 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" ) 1257 else() 1258 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3-d16" ) 1259 endif() 1260elseif( ARMEABI_V6 ) 1261 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) # vfp == vfpv2 1262elseif( ARMEABI ) 1263 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) 1264endif() 1265 1266# setup default C link flag 1267set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1268 1269if( ANDROID_STL MATCHES "gnustl" AND (EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}") ) 1270 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>" ) 1271 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>" ) 1272 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1273else() 1274 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>" ) 1275 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>" ) 1276 set( CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1277endif() 1278 1279# STL 1280if( EXISTS "${__libstl}" OR EXISTS "${__libsupcxx}" ) 1281 if( EXISTS "${__libstl}" ) 1282 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libstl}\"" ) 1283 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libstl}\"" ) 1284 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libstl}\"" ) 1285 endif() 1286 if( EXISTS "${__libsupcxx}" ) 1287 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1288 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1289 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1290 # C objects: 1291 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>" ) 1292 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>" ) 1293 set( CMAKE_C_LINK_EXECUTABLE "<CMAKE_C_COMPILER> <FLAGS> <CMAKE_C_LINK_FLAGS> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>" ) 1294 set( CMAKE_C_CREATE_SHARED_LIBRARY "${CMAKE_C_CREATE_SHARED_LIBRARY} \"${__libsupcxx}\"" ) 1295 set( CMAKE_C_CREATE_SHARED_MODULE "${CMAKE_C_CREATE_SHARED_MODULE} \"${__libsupcxx}\"" ) 1296 set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} \"${__libsupcxx}\"" ) 1297 endif() 1298 if( ANDROID_STL MATCHES "gnustl" ) 1299 if( NOT EXISTS "${ANDROID_LIBM_PATH}" ) 1300 set( ANDROID_LIBM_PATH -lm ) 1301 endif() 1302 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} ${ANDROID_LIBM_PATH}" ) 1303 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} ${ANDROID_LIBM_PATH}" ) 1304 set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIBM_PATH}" ) 1305 endif() 1306endif() 1307 1308# add crt object to executable link list for Android SDK build 1309# ---------------------------------------------------------------------------- 1310set( ANDROID_CRT_BEGIN "${ANDROID_SYSROOT}/usr/lib/crtbegin_dynamic.o") 1311set( ANDROID_CRT_END "${ANDROID_SYSROOT}/usr/lib/crtend_android.o") 1312set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${ANDROID_CRT_BEGIN} ${ANDROID_CRT_END}" ) 1313set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_CRT_BEGIN} ${ANDROID_CRT_END}" ) 1314 1315# ---------------------------------------------------------------------------- 1316# ---------------------------------------------------------------------------- 1317# add libgcc.a to executable link list 1318# ---------------------------------------------------------------------------- 1319set( ANDROID_LIB_GCC "${ANDROID_TOOLCHAIN_ROOT}/lib/gcc/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${ANDROID_COMPILER_VERSION}/libgcc.a") 1320set( CMAKE_C_LINK_EXECUTABLE "${CMAKE_C_LINK_EXECUTABLE} ${ANDROID_LIB_GCC}" ) 1321set( CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_LINK_EXECUTABLE} ${ANDROID_LIB_GCC}" ) 1322 1323# variables controlling optional build flags 1324if( ANDROID_NDK_RELEASE_NUM LESS 7000 ) # before r7 1325 # libGLESv2.so in NDK's prior to r7 refers to missing external symbols. 1326 # So this flag option is required for all projects using OpenGL from native. 1327 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON ) 1328else() 1329 __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF ) 1330endif() 1331__INIT_VARIABLE( ANDROID_NO_UNDEFINED VALUES ON ) 1332__INIT_VARIABLE( ANDROID_FUNCTION_LEVEL_LINKING VALUES ON ) 1333__INIT_VARIABLE( ANDROID_GOLD_LINKER VALUES ON ) 1334__INIT_VARIABLE( ANDROID_NOEXECSTACK VALUES ON ) 1335__INIT_VARIABLE( ANDROID_RELRO VALUES ON ) 1336 1337set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" ) 1338set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1339set( 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" ) 1340set( ANDROID_GOLD_LINKER ${ANDROID_GOLD_LINKER} CACHE BOOL "Enables gold linker" ) 1341set( ANDROID_NOEXECSTACK ${ANDROID_NOEXECSTACK} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" ) 1342set( ANDROID_RELRO ${ANDROID_RELRO} CACHE BOOL "Enables RELRO - a memory corruption mitigation technique" ) 1343mark_as_advanced( ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_FUNCTION_LEVEL_LINKING ANDROID_GOLD_LINKER ANDROID_NOEXECSTACK ANDROID_RELRO ) 1344 1345# linker flags 1346set( ANDROID_LINKER_FLAGS "-Wl,--allow-multiple-definition" ) 1347 1348if( ARMEABI_V7A ) 1349 # this is *required* to use the following linker flags that routes around 1350 # a CPU bug in some Cortex-A8 implementations: 1351 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--fix-cortex-a8" ) 1352endif() 1353 1354if( ANDROID_NO_UNDEFINED ) 1355 if( MIPS ) 1356 # there is some sysroot-related problem in mips linker... 1357 if( NOT ANDROID_SYSROOT MATCHES "[ ;\"]" ) 1358 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined -Wl,-rpath-link,${ANDROID_SYSROOT}/usr/lib" ) 1359 endif() 1360 else() 1361 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--no-undefined" ) 1362 endif() 1363endif() 1364 1365if( ANDROID_SO_UNDEFINED ) 1366 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) 1367endif() 1368 1369if( ANDROID_FUNCTION_LEVEL_LINKING ) 1370 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fdata-sections -ffunction-sections" ) 1371 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,--gc-sections" ) 1372endif() 1373 1374if( ANDROID_COMPILER_VERSION VERSION_EQUAL "4.6" ) 1375 if( ANDROID_GOLD_LINKER AND (CMAKE_HOST_UNIX OR ANDROID_NDK_RELEASE_NUM GREATER 8002) AND (ARMEABI OR ARMEABI_V7A OR X86) ) 1376 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=gold" ) 1377 elseif( ANDROID_NDK_RELEASE_NUM GREATER 8002 ) # after r8b 1378 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -fuse-ld=bfd" ) 1379 elseif( ANDROID_NDK_RELEASE STREQUAL "r8b" AND ARMEABI AND NOT _CMAKE_IN_TRY_COMPILE ) 1380 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 1381 On Linux and OS X host platform you can workaround this problem using gold linker (default). 1382 Rerun cmake with -DANDROID_GOLD_LINKER=ON option in case of problems. 1383" ) 1384 endif() 1385endif() # version 4.6 1386 1387if( ANDROID_NOEXECSTACK ) 1388 if( ANDROID_COMPILER_IS_CLANG ) 1389 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Xclang -mnoexecstack" ) 1390 else() 1391 set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -Wa,--noexecstack" ) 1392 endif() 1393 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,noexecstack" ) 1394endif() 1395 1396if( ANDROID_RELRO ) 1397 set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now" ) 1398endif() 1399 1400# ---------------------------------------------------------------------------- 1401# add linker definition for Android SDK build 1402# ---------------------------------------------------------------------------- 1403if( X86_64 OR MIPS64 OR ARM64_V8A ) 1404set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-dynamic-linker,/system/bin/linker64 " ) 1405else() 1406set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} -Wl,-dynamic-linker,/system/bin/linker " ) 1407endif() 1408 1409if( ANDROID_COMPILER_IS_CLANG ) 1410 set( ANDROID_CXX_FLAGS "-target ${ANDROID_LLVM_TRIPLE} -Qunused-arguments ${ANDROID_CXX_FLAGS}" ) 1411 if( BUILD_WITH_ANDROID_NDK ) 1412 set( ANDROID_CXX_FLAGS "-gcc-toolchain ${ANDROID_TOOLCHAIN_ROOT} ${ANDROID_CXX_FLAGS}" ) 1413 endif() 1414endif() 1415 1416# ---------------------------------------------------------------------------- 1417# add nostdlib for Android SDK build 1418# ---------------------------------------------------------------------------- 1419set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -nostdlib -ldl -lc" ) 1420 1421# cache flags 1422set( CMAKE_CXX_FLAGS "" CACHE STRING "c++ flags" ) 1423set( CMAKE_C_FLAGS "" CACHE STRING "c flags" ) 1424set( CMAKE_CXX_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c++ Release flags" ) 1425set( CMAKE_C_FLAGS_RELEASE "-O3 -DNDEBUG" CACHE STRING "c Release flags" ) 1426set( CMAKE_CXX_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c++ Debug flags" ) 1427set( CMAKE_C_FLAGS_DEBUG "-O0 -g -DDEBUG -D_DEBUG" CACHE STRING "c Debug flags" ) 1428set( CMAKE_SHARED_LINKER_FLAGS "" CACHE STRING "shared linker flags" ) 1429set( CMAKE_MODULE_LINKER_FLAGS "" CACHE STRING "module linker flags" ) 1430set( CMAKE_EXE_LINKER_FLAGS "-Wl,-z,nocopyreloc" CACHE STRING "executable linker flags" ) 1431 1432# put flags to cache (for debug purpose only) 1433set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Android specific c/c++ flags" ) 1434set( ANDROID_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE}" CACHE INTERNAL "Android specific c/c++ Release flags" ) 1435set( ANDROID_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG}" CACHE INTERNAL "Android specific c/c++ Debug flags" ) 1436set( ANDROID_LINKER_FLAGS "${ANDROID_LINKER_FLAGS}" CACHE INTERNAL "Android specific c/c++ linker flags" ) 1437 1438# finish flags 1439set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) 1440set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) 1441set( CMAKE_CXX_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_CXX_FLAGS_RELEASE}" ) 1442set( CMAKE_C_FLAGS_RELEASE "${ANDROID_CXX_FLAGS_RELEASE} ${CMAKE_C_FLAGS_RELEASE}" ) 1443set( CMAKE_CXX_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_CXX_FLAGS_DEBUG}" ) 1444set( CMAKE_C_FLAGS_DEBUG "${ANDROID_CXX_FLAGS_DEBUG} ${CMAKE_C_FLAGS_DEBUG}" ) 1445set( CMAKE_SHARED_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS}" ) 1446set( CMAKE_MODULE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_MODULE_LINKER_FLAGS}" ) 1447set( CMAKE_EXE_LINKER_FLAGS "${ANDROID_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS}" ) 1448 1449if( MIPS AND BUILD_WITH_ANDROID_NDK AND ANDROID_NDK_RELEASE STREQUAL "r8" ) 1450 set( CMAKE_SHARED_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_SHARED_LINKER_FLAGS}" ) 1451 set( CMAKE_MODULE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.xsc ${CMAKE_MODULE_LINKER_FLAGS}" ) 1452 set( CMAKE_EXE_LINKER_FLAGS "-Wl,-T,${ANDROID_NDK_TOOLCHAINS_PATH}/${ANDROID_GCC_TOOLCHAIN_NAME}/mipself.x ${CMAKE_EXE_LINKER_FLAGS}" ) 1453endif() 1454 1455# pie/pic 1456if( NOT (ANDROID_NATIVE_API_LEVEL LESS 16) AND (NOT DEFINED ANDROID_APP_PIE OR ANDROID_APP_PIE) AND (CMAKE_VERSION VERSION_GREATER 2.8.8) ) 1457 set( CMAKE_POSITION_INDEPENDENT_CODE TRUE ) 1458 set( CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fPIE -pie") 1459else() 1460 set( CMAKE_POSITION_INDEPENDENT_CODE FALSE ) 1461 set( CMAKE_CXX_FLAGS "-fpic ${CMAKE_CXX_FLAGS}" ) 1462 set( CMAKE_C_FLAGS "-fpic ${CMAKE_C_FLAGS}" ) 1463endif() 1464 1465# configure rtti 1466if( DEFINED ANDROID_RTTI AND ANDROID_STL_FORCE_FEATURES ) 1467 if( ANDROID_RTTI ) 1468 set( CMAKE_CXX_FLAGS "-frtti ${CMAKE_CXX_FLAGS}" ) 1469 else() 1470 set( CMAKE_CXX_FLAGS "-fno-rtti ${CMAKE_CXX_FLAGS}" ) 1471 endif() 1472endif() 1473 1474# configure exceptios 1475if( DEFINED ANDROID_EXCEPTIONS AND ANDROID_STL_FORCE_FEATURES ) 1476 if( ANDROID_EXCEPTIONS ) 1477 set( CMAKE_CXX_FLAGS "-fexceptions ${CMAKE_CXX_FLAGS}" ) 1478 set( CMAKE_C_FLAGS "-fexceptions ${CMAKE_C_FLAGS}" ) 1479 else() 1480 set( CMAKE_CXX_FLAGS "-fno-exceptions ${CMAKE_CXX_FLAGS}" ) 1481 set( CMAKE_C_FLAGS "-fno-exceptions ${CMAKE_C_FLAGS}" ) 1482 endif() 1483endif() 1484 1485# global includes and link directories 1486include_directories( SYSTEM "${ANDROID_SYSROOT}/usr/include" ${ANDROID_STL_INCLUDE_DIRS} ) 1487 1488# ---------------------------------------------------------------------------- 1489# comment unused directory detection 1490# ---------------------------------------------------------------------------- 1491if( DEFINED CMAKE_INSTALL_PREFIX ) 1492 get_filename_component(__android_install_path "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ABSOLUTE) # avoid CMP0015 policy warning 1493 link_directories( "${__android_install_path}" ) 1494endif() 1495 1496# ---------------------------------------------------------------------------- 1497# add sysroot library 1498# ---------------------------------------------------------------------------- 1499link_directories( "${ANDROID_SYSROOT}/usr/lib" ) 1500 1501# detect if need link crtbegin_so.o explicitly 1502if( NOT DEFINED ANDROID_EXPLICIT_CRT_LINK ) 1503 set( __cmd "${CMAKE_CXX_CREATE_SHARED_LIBRARY}" ) 1504 string( REPLACE "<CMAKE_CXX_COMPILER>" "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1}" __cmd "${__cmd}" ) 1505 string( REPLACE "<CMAKE_C_COMPILER>" "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}" __cmd "${__cmd}" ) 1506 string( REPLACE "<CMAKE_SHARED_LIBRARY_CXX_FLAGS>" "${CMAKE_CXX_FLAGS}" __cmd "${__cmd}" ) 1507 string( REPLACE "<LANGUAGE_COMPILE_FLAGS>" "" __cmd "${__cmd}" ) 1508 string( REPLACE "<LINK_FLAGS>" "${CMAKE_SHARED_LINKER_FLAGS}" __cmd "${__cmd}" ) 1509 string( REPLACE "<CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS>" "-shared" __cmd "${__cmd}" ) 1510 string( REPLACE "<CMAKE_SHARED_LIBRARY_SONAME_CXX_FLAG>" "" __cmd "${__cmd}" ) 1511 string( REPLACE "<TARGET_SONAME>" "" __cmd "${__cmd}" ) 1512 string( REPLACE "<TARGET>" "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/toolchain_crtlink_test.so" __cmd "${__cmd}" ) 1513 string( REPLACE "<OBJECTS>" "\"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" __cmd "${__cmd}" ) 1514 string( REPLACE "<LINK_LIBRARIES>" "" __cmd "${__cmd}" ) 1515 separate_arguments( __cmd ) 1516 foreach( __var ANDROID_NDK ANDROID_NDK_TOOLCHAINS_PATH ANDROID_STANDALONE_TOOLCHAIN ) 1517 if( ${__var} ) 1518 set( __tmp "${${__var}}" ) 1519 separate_arguments( __tmp ) 1520 string( REPLACE "${__tmp}" "${${__var}}" __cmd "${__cmd}") 1521 endif() 1522 endforeach() 1523 string( REPLACE "'" "" __cmd "${__cmd}" ) 1524 string( REPLACE "\"" "" __cmd "${__cmd}" ) 1525 execute_process( COMMAND ${__cmd} RESULT_VARIABLE __cmd_result OUTPUT_QUIET ERROR_QUIET ) 1526 if( __cmd_result EQUAL 0 ) 1527 set( ANDROID_EXPLICIT_CRT_LINK ON ) 1528 else() 1529 set( ANDROID_EXPLICIT_CRT_LINK OFF ) 1530 endif() 1531endif() 1532 1533if( ANDROID_EXPLICIT_CRT_LINK ) 1534 set( CMAKE_CXX_CREATE_SHARED_LIBRARY "${CMAKE_CXX_CREATE_SHARED_LIBRARY} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1535 set( CMAKE_CXX_CREATE_SHARED_MODULE "${CMAKE_CXX_CREATE_SHARED_MODULE} \"${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o\"" ) 1536endif() 1537 1538# setup output directories 1539set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) 1540 1541if( DEFINED LIBRARY_OUTPUT_PATH_ROOT 1542 OR EXISTS "${CMAKE_SOURCE_DIR}/AndroidManifest.xml" 1543 OR (EXISTS "${CMAKE_SOURCE_DIR}/../AndroidManifest.xml" AND EXISTS "${CMAKE_SOURCE_DIR}/../jni/") ) 1544 set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "Root for binaries output, set this to change where Android libs are installed to" ) 1545 if( NOT _CMAKE_IN_TRY_COMPILE ) 1546 if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) 1547 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" ) 1548 else() 1549 set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" ) 1550 endif() 1551 set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for Android libs" ) 1552 endif() 1553endif() 1554 1555# copy shaed stl library to build directory 1556if( NOT _CMAKE_IN_TRY_COMPILE AND __libstl MATCHES "[.]so$" AND DEFINED LIBRARY_OUTPUT_PATH ) 1557 get_filename_component( __libstlname "${__libstl}" NAME ) 1558 execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${__libstl}" "${LIBRARY_OUTPUT_PATH}/${__libstlname}" RESULT_VARIABLE __fileCopyProcess ) 1559 if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${LIBRARY_OUTPUT_PATH}/${__libstlname}") 1560 message( SEND_ERROR "Failed copying of ${__libstl} to the ${LIBRARY_OUTPUT_PATH}/${__libstlname}" ) 1561 endif() 1562 unset( __fileCopyProcess ) 1563 unset( __libstlname ) 1564endif() 1565 1566 1567# set these global flags for cmake client scripts to change behavior 1568set( ANDROID True ) 1569set( BUILD_ANDROID True ) 1570 1571# where is the target environment 1572set( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" ) 1573 1574# only search for libraries and includes in the ndk toolchain 1575set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1576set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1577set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1578 1579 1580# macro to find packages on the host OS 1581macro( find_host_package ) 1582 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1583 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1584 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1585 if( CMAKE_HOST_WIN32 ) 1586 SET( WIN32 1 ) 1587 SET( UNIX ) 1588 elseif( CMAKE_HOST_APPLE ) 1589 SET( APPLE 1 ) 1590 SET( UNIX ) 1591 endif() 1592 find_package( ${ARGN} ) 1593 SET( WIN32 ) 1594 SET( APPLE ) 1595 SET( UNIX 1 ) 1596 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1597 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1598 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1599endmacro() 1600 1601 1602# macro to find programs on the host OS 1603macro( find_host_program ) 1604 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) 1605 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) 1606 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) 1607 if( CMAKE_HOST_WIN32 ) 1608 SET( WIN32 1 ) 1609 SET( UNIX ) 1610 elseif( CMAKE_HOST_APPLE ) 1611 SET( APPLE 1 ) 1612 SET( UNIX ) 1613 endif() 1614 find_program( ${ARGN} ) 1615 SET( WIN32 ) 1616 SET( APPLE ) 1617 SET( UNIX 1 ) 1618 set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) 1619 set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) 1620 set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) 1621endmacro() 1622 1623 1624# export toolchain settings for the try_compile() command 1625if( NOT _CMAKE_IN_TRY_COMPILE ) 1626 set( __toolchain_config "") 1627 foreach( __var NDK_CCACHE LIBRARY_OUTPUT_PATH_ROOT ANDROID_FORBID_SYGWIN 1628 ANDROID_NDK_HOST_X64 1629 ANDROID_NDK 1630 ANDROID_NDK_LAYOUT 1631 ANDROID_STANDALONE_TOOLCHAIN 1632 ANDROID_TOOLCHAIN_NAME 1633 ANDROID_ABI 1634 ANDROID_NATIVE_API_LEVEL 1635 ANDROID_STL 1636 ANDROID_STL_FORCE_FEATURES 1637 ANDROID_FORCE_ARM_BUILD 1638 ANDROID_NO_UNDEFINED 1639 ANDROID_SO_UNDEFINED 1640 ANDROID_FUNCTION_LEVEL_LINKING 1641 ANDROID_GOLD_LINKER 1642 ANDROID_NOEXECSTACK 1643 ANDROID_RELRO 1644 ANDROID_LIBM_PATH 1645 ANDROID_EXPLICIT_CRT_LINK 1646 ANDROID_APP_PIE 1647 ) 1648 if( DEFINED ${__var} ) 1649 if( ${__var} MATCHES " ") 1650 set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" CACHE INTERNAL \"\" )\n" ) 1651 else() 1652 set( __toolchain_config "${__toolchain_config}set( ${__var} ${${__var}} CACHE INTERNAL \"\" )\n" ) 1653 endif() 1654 endif() 1655 endforeach() 1656 file( WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/android.toolchain.config.cmake" "${__toolchain_config}" ) 1657 unset( __toolchain_config ) 1658endif() 1659 1660 1661# force cmake to produce / instead of \ in build commands for Ninja generator 1662if( CMAKE_GENERATOR MATCHES "Ninja" AND CMAKE_HOST_WIN32 ) 1663 # it is a bad hack after all 1664 # CMake generates Ninja makefiles with UNIX paths only if it thinks that we are going to build with MinGW 1665 set( CMAKE_COMPILER_IS_MINGW TRUE ) # tell CMake that we are MinGW 1666 set( CMAKE_CROSSCOMPILING TRUE ) # stop recursion 1667 enable_language( C ) 1668 enable_language( CXX ) 1669 # unset( CMAKE_COMPILER_IS_MINGW ) # can't unset because CMake does not convert back-slashes in response files without it 1670 unset( MINGW ) 1671endif() 1672 1673 1674# Variables controlling behavior or set by cmake toolchain: 1675# 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" 1676# ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14,15,16,17,18,19,21 (depends on NDK version) 1677# ANDROID_STL : gnustl_static/gnustl_shared/stlport_static/stlport_shared/gabi++_static/gabi++_shared/system_re/system/none 1678# ANDROID_FORBID_SYGWIN : ON/OFF 1679# ANDROID_NO_UNDEFINED : ON/OFF 1680# ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version) 1681# ANDROID_FUNCTION_LEVEL_LINKING : ON/OFF 1682# ANDROID_GOLD_LINKER : ON/OFF 1683# ANDROID_NOEXECSTACK : ON/OFF 1684# ANDROID_RELRO : ON/OFF 1685# ANDROID_FORCE_ARM_BUILD : ON/OFF 1686# ANDROID_STL_FORCE_FEATURES : ON/OFF 1687# 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` 1688# Can be set only at the first run: 1689# ANDROID_NDK : path to your NDK install 1690# NDK_CCACHE : path to your ccache executable 1691# ANDROID_TOOLCHAIN_NAME : the NDK name of compiler toolchain 1692# ANDROID_NDK_HOST_X64 : try to use x86_64 toolchain (default for x64 host systems) 1693# ANDROID_NDK_LAYOUT : the inner NDK structure (RELEASE, LINARO, ANDROID) 1694# LIBRARY_OUTPUT_PATH_ROOT : <any valid path> 1695# ANDROID_STANDALONE_TOOLCHAIN 1696# 1697# Primary read-only variables: 1698# ANDROID : always TRUE 1699# ARMEABI : TRUE for arm v6 and older devices 1700# ARMEABI_V6 : TRUE for arm v6 1701# ARMEABI_V7A : TRUE for arm v7a 1702# ARM64_V8A : TRUE for arm64-v8a 1703# NEON : TRUE if NEON unit is enabled 1704# VFPV3 : TRUE if VFP version 3 is enabled 1705# X86 : TRUE if configured for x86 1706# X86_64 : TRUE if configured for x86_64 1707# MIPS : TRUE if configured for mips 1708# MIPS64 : TRUE if configured for mips64 1709# BUILD_WITH_ANDROID_NDK : TRUE if NDK is used 1710# BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used 1711# ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform 1712# ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a", "x86", "mips", "arm64-v8a", "x86_64", "mips64" depending on ANDROID_ABI 1713# ANDROID_NDK_RELEASE : from r5 to r10d; set only for NDK 1714# ANDROID_NDK_RELEASE_NUM : numeric ANDROID_NDK_RELEASE version (1000*major+minor) 1715# ANDROID_ARCH_NAME : "arm", "x86", "mips", "arm64", "x86_64", "mips64" depending on ANDROID_ABI 1716# ANDROID_SYSROOT : path to the compiler sysroot 1717# TOOL_OS_SUFFIX : "" or ".exe" depending on host platform 1718# ANDROID_COMPILER_IS_CLANG : TRUE if clang compiler is used 1719# 1720# Secondary (less stable) read-only variables: 1721# ANDROID_COMPILER_VERSION : GCC version used (not Clang version) 1722# ANDROID_CLANG_VERSION : version of clang compiler if clang is used 1723# ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform 1724# ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI 1725# ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux" 1726# ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK) 1727# ANDROID_CLANG_TOOLCHAIN_ROOT : path to clang tools 1728# ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK 1729# ANDROID_STL_INCLUDE_DIRS : stl include paths 1730# ANDROID_RTTI : if rtti is enabled by the runtime 1731# ANDROID_EXCEPTIONS : if exceptions are enabled by the runtime 1732# ANDROID_GCC_TOOLCHAIN_NAME : read-only, differs from ANDROID_TOOLCHAIN_NAME only if clang is used 1733# 1734# Defaults: 1735# ANDROID_DEFAULT_NDK_API_LEVEL 1736# ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} 1737# ANDROID_NDK_SEARCH_PATHS 1738# ANDROID_SUPPORTED_ABIS_${ARCH} 1739# ANDROID_SUPPORTED_NDK_VERSIONS 1740