From fe7252266b79cea5bf3514c4a165c0e341ac481a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Jos=C3=A9=20Fonseca?= Date: Sun, 11 Mar 2012 13:24:02 +0000 Subject: [PATCH] Update android.toolchain.cmake to latest from android-cmake project. --- CMakeLists.txt | 1 - INSTALL.markdown | 2 - cmake/toolchain/android.toolchain.cmake | 1113 ++++++++++++++++++----- 3 files changed, 864 insertions(+), 252 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 596f4b2..67df4d0 100755 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -31,7 +31,6 @@ set (CMAKE_USE_PYTHON_VERSION 2.7 2.6) if (ANDROID) set (ENABLE_GUI false) - set (ENABLE_CLI false) else () macro (find_host_package) find_package (${ARGN}) diff --git a/INSTALL.markdown b/INSTALL.markdown index f395280..6ed777a 100644 --- a/INSTALL.markdown +++ b/INSTALL.markdown @@ -59,8 +59,6 @@ Build as: cmake -DCMAKE_TOOLCHAIN_FILE=cmake/toolchain/android.toolchain.cmake -DANDROID_API_LEVEL=9 -H. -Bbuild make -C build -This will generate a libapitrace.so in your `libs/armeabi-v7a/` directory that can be used. - Windows ------- diff --git a/cmake/toolchain/android.toolchain.cmake b/cmake/toolchain/android.toolchain.cmake index 640f469..2f53416 100644 --- a/cmake/toolchain/android.toolchain.cmake +++ b/cmake/toolchain/android.toolchain.cmake @@ -1,370 +1,891 @@ -# ---------------------------------------------------------------------------- -# Android CMake toolchain file, for use with the ndk r5,r6 +# ------------------------------------------------------------------------------ +# Android CMake toolchain file, for use with the Android NDK r5-r7 +# Requires cmake 2.6.3 or newer (2.8.3 or newer is recommended). # See home page: http://code.google.com/p/android-cmake/ # +# The file is mantained by the OpenCV project. And also can be found at +# http://code.opencv.org/svn/opencv/trunk/opencv/android/android.toolchain.cmake +# # Usage Linux: -# $ export ANDROID_NDK=/ -# $ cmake -DCMAKE_TOOLCHAIN_FILE=/android.toolchain.cmake .. -# $ make +# $ export ANDROID_NDK=/absolute/path/to/the/android-ndk +# $ mkdir build && cd build +# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake .. +# $ make -j8 # # Usage Linux (using standalone toolchain): -# $ export ANDROID_NDK_TOOLCHAIN_ROOT=/ -# $ cmake -DCMAKE_TOOLCHAIN_FILE=/android.toolchain.cmake .. -# $ make +# $ export ANDROID_STANDALONE_TOOLCHAIN=/absolute/path/to/android-toolchain +# $ mkdir build && cd build +# $ cmake -DCMAKE_TOOLCHAIN_FILE=path/to/the/android.toolchain.cmake .. +# $ make -j8 # # Usage Windows: # You need native port of make to build your project. -# For example this one: http://gnuwin32.sourceforge.net/packages/make.htm +# Android NDK r7 already has make.exe on board. +# For older NDK you have to install it separately. +# For example, this one: http://gnuwin32.sourceforge.net/packages/make.htm +# +# $ SET ANDROID_NDK=C:\absolute\path\to\the\android-ndk +# $ mkdir build && cd build +# $ cmake.exe -G"MinGW Makefiles" +# -DCMAKE_TOOLCHAIN_FILE=path\to\the\android.toolchain.cmake +# -DCMAKE_MAKE_PROGRAM="%ANDROID_NDK%\prebuilt\windows\bin\make.exe" .. +# $ "%ANDROID_NDK%\prebuilt\windows\bin\make.exe" # -# $ SET ANDROID_NDK=C:\\android-ndk-r6 -# $ cmake.exe -G"Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=\android.toolchain.cmake -DCMAKE_MAKE_PROGRAM=C:\\make.exe .. -# $ C:\\make.exe # +# Options (can be set as cmake parameters: -D=): +# ANDROID_NDK=/opt/android-ndk - path to the NDK root. +# Can be set as environment variable. Can be set only at first cmake run. # -# Toolchain options (can be set as cmake parameters: -D=): -# ANDROID_NDK=/opt/android-ndk-r6 - path to NDK root. -# Can be set as environment variable. +# ANDROID_STANDALONE_TOOLCHAIN=/opt/android-toolchain - path to the +# standalone toolchain. This option is not used if full NDK is found +# (ignored if ANDROID_NDK is set). +# Can be set as environment variable. Can be set only at first cmake run. # -# ANDROID_NDK_TOOLCHAIN_ROOT=/opt/android-toolchain - path to standalone toolchain. -# Option is not used if full NDK is found. Can be set as environment variable. +# ANDROID_ABI=armeabi-v7a - specifies the target Application Binary +# Interface (ABI). This option nearly matches to the APP_ABI variable +# used by ndk-build tool from Android NDK. +# Possible values are: +# "armeabi" - matches to the NDK ABI with the same name. +# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. +# "armeabi-v7a" - matches to the NDK ABI with the same name. +# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. +# "armeabi-v7a with NEON" - same as armeabi-v7a, but +# sets NEON as floating-point unit +# "armeabi-v7a with VFPV3" - same as armeabi-v7a, but +# sets VFPV3 as floating-point unit (has 32 registers instead of 16). +# "armeabi-v6 with VFP" - tuned for ARMv6 processors having VFP. +# "x86" - matches to the NDK ABI with the same name. +# See ${ANDROID_NDK}/docs/CPU-ARCH-ABIS.html for the documentation. # -# ANDROID_API_LEVEL=android-8 - level of android API to use. -# Option is ignored when build uses stanalone toolchain. +# ANDROID_NATIVE_API_LEVEL=android-8 - level of Android API compile for. +# Option is read-only when standalone toolchain used. # -# ARM_TARGET=armeabi-v7a - type of floating point support. -# Other possible values are: "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3" +# ANDROID_FORCE_ARM_BUILD=OFF - set true to generate 32-bit ARM instructions +# instead of Thumb-1. Is not available for "x86" (inapplicable) and +# "armeabi-v6 with VFP" (forced) ABIs. # -# FORCE_ARM=false - set true to generate 32-bit ARM instructions instead of Thumb-1. +# ANDROID_NO_UNDEFINED=ON - set true to show all undefined symbols as linker +# errors even if they are not used. # -# NO_UNDEFINED=true - set true to show all undefined symbols will as linker errors even if they are not used. +# ANDROID_SO_UNDEFINED=OFF - set true to allow undefined symbols in shared +# libraries. Automatically turned on for NDK r5x and r6x due to GLESv2 +# problems. # +# LIBRARY_OUTPUT_PATH_ROOT=${CMAKE_SOURCE_DIR} - where to output binary +# files. See additional details below. # -# Toolcahin will search for NDK/toolchain in following order: -# ANDROID_NDK - cmake parameter -# ANDROID_NDK - environment variable -# ANDROID_NDK - default location -# ANDROID_NDK_TOOLCHAIN_ROOT - cmake parameter -# ANDROID_NDK_TOOLCHAIN_ROOT - environment variable -# ANDROID_NDK_TOOLCHAIN_ROOT - default location +# ANDROID_SET_OBSOLETE_VARIABLES=ON - it set, then toolchain defines some +# obsolete variables which were set by previous versions of this file for +# backward compatibility. # # # What?: -# Make sure to do the following in your scripts: -# SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}") -# SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}") -# The flags will be prepopulated with critical flags, so don't loose them. +# android-cmake toolchain searches for NDK/toolchain in the following order: +# ANDROID_NDK - cmake parameter +# ANDROID_NDK - environment variable +# ANDROID_STANDALONE_TOOLCHAIN - cmake parameter +# ANDROID_STANDALONE_TOOLCHAIN - environment variable +# ANDROID_NDK - default locations +# ANDROID_STANDALONE_TOOLCHAIN - default locations +# +# Make sure to do the following in your scripts: +# SET( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${my_cxx_flags}" ) +# SET( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${my_cxx_flags}" ) +# The flags will be prepopulated with critical flags, so don't loose them. +# Also be aware that toolchain also sets configuration-specific compiler +# flags and linker flags. # -# ANDROID and BUILD_ANDROID will be set to true, you may test these -# variables to make necessary changes. +# ANDROID and BUILD_ANDROID will be set to true, you may test any of these +# variables to make necessary Android-specific configuration changes. # -# Also ARMEABI and ARMEABI_V7A will be set true, mutually exclusive. V7A is -# for floating point. NEON option will be set true if fpu is set to neon. +# Also ARMEABI or ARMEABI_V7A or X86 will be set true, mutually exclusive. +# NEON option will be set true if VFP is set to NEON. # -# LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where android -# libraries will be installed. -# default is ${CMAKE_SOURCE_DIR} , and the android libs will always be -# under ${LIBRARY_OUTPUT_PATH_ROOT}/libs/armeabi* depending on target. -# this will be convenient for android linking +# LIBRARY_OUTPUT_PATH_ROOT should be set in cache to determine where Android +# libraries will be installed. +# Default is ${CMAKE_SOURCE_DIR}, and the android libs will always be +# under the ${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME} +# (depending on the target ABI). This is convenient for Android packaging. # -# Base system is Linux, but you may need to change things -# for android compatibility. -# # +# Change Log: # - initial version December 2010 Ethan Rublee ethan.ruble@gmail.com # - modified April 2011 Andrey Kamaev andrey.kamaev@itseez.com # [+] added possibility to build with NDK (without standalone toolchain) -# [+] support croos compilation on Windows (native, no cygwin support) +# [+] support cross-compilation on Windows (native, no cygwin support) # [+] added compiler option to force "char" type to be signed # [+] added toolchain option to compile to 32-bit ARM instructions # [+] added toolchain option to disable SWIG search # [+] added platform "armeabi-v7a with VFPV3" # [~] ARM_TARGETS renamed to ARM_TARGET -# - modified April 2011 Andrey Kamaev andrey.kamaev@itseez.com # [+] EXECUTABLE_OUTPUT_PATH is set by toolchain (required on Windows) # [~] Fixed bug with ANDROID_API_LEVEL variable # [~] turn off SWIG search if it is not found first time # - modified May 2011 Andrey Kamaev andrey.kamaev@itseez.com # [~] ANDROID_LEVEL is renamed to ANDROID_API_LEVEL # [+] ANDROID_API_LEVEL is detected by toolchain if not specified -# [~] added guard to prevent changing of output directories on first cmake pass +# [~] added guard to prevent changing of output directories on the first +# cmake pass # [~] toolchain exits with error if ARM_TARGET is not recognized # - modified June 2011 Andrey Kamaev andrey.kamaev@itseez.com # [~] default NDK path is updated for version r5c # [+] variable CMAKE_SYSTEM_PROCESSOR is set based on ARM_TARGET # [~] toolchain install directory is added to linker paths # [-] removed SWIG-related stuff from toolchain -# [+] added macro find_host_package, find_host_program to search packages/programs on host system +# [+] added macro find_host_package, find_host_program to search +# packages/programs on the host system # [~] fixed path to STL library # - modified July 2011 Andrey Kamaev andrey.kamaev@itseez.com # [~] fixed options caching # [~] search for all supported NDK versions # [~] allowed spaces in NDK path -# ---------------------------------------------------------------------------- +# - modified September 2011 Andrey Kamaev andrey.kamaev@itseez.com +# [~] updated for NDK r6b +# - modified November 2011 Andrey Kamaev andrey.kamaev@itseez.com +# [*] rewritten for NDK r7 +# [+] x86 toolchain support (experimental) +# [+] added "armeabi-v6 with VFP" ABI for ARMv6 processors. +# [~] improved compiler and linker flags management +# [+] support different build flags for Release and Debug configurations +# [~] by default compiler flags the same as used by ndk-build (but only +# where reasonable) +# [~] ANDROID_NDK_TOOLCHAIN_ROOT is splitted to ANDROID_STANDALONE_TOOLCHAIN +# and ANDROID_TOOLCHAIN_ROOT +# [~] ARM_TARGET is renamed to ANDROID_ABI +# [~] ARMEABI_NDK_NAME is renamed to ANDROID_NDK_ABI_NAME +# [~] ANDROID_API_LEVEL is renamed to ANDROID_NATIVE_API_LEVEL +# - modified January 2012 Andrey Kamaev andrey.kamaev@itseez.com +# [+] added stlport_static support (experimental) +# [+] added special check for cygwin +# [+] filtered out hidden files (starting with .) while globbing inside NDK +# [+] automatically applied GLESv2 linkage fix for NDK revisions 5-6 +# [+] added ANDROID_GET_ABI_RAWNAME to get NDK ABI names by CMake flags +# - modified February 2012 Andrey Kamaev andrey.kamaev@itseez.com +# [+] updated for NDK r7b +# [~] fixed cmake try_compile() command +# [~] Fix for missing install_name_tool on OS X +# ------------------------------------------------------------------------------ + +cmake_minimum_required( VERSION 2.6.3 ) + +if( PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" ) + include( "${CMAKE_CURRENT_SOURCE_DIR}/../android.toolchain.config.cmake" OPTIONAL ) +endif() # this one is important set( CMAKE_SYSTEM_NAME Linux ) #this one not so much set( CMAKE_SYSTEM_VERSION 1 ) -set( ANDROID_NDK_DEFAULT_SEARCH_PATH /opt/android-ndk ) -set( ANDROID_NDK_SUPPORTED_VERSIONS -r6 -r5c -r5b -r5 "") -set( ANDROID_NDK_TOOLCHAIN_DEFAULT_SEARCH_PATH /opt/android-toolchain ) -set( TOOL_OS_SUFFIX "" ) +set( ANDROID_SUPPORTED_NDK_VERSIONS -r7b -r7 -r6b -r6 -r5c -r5b -r5 "" ) +if( CMAKE_HOST_WIN32 ) + file( TO_CMAKE_PATH "$ENV{PROGRAMFILES}" ANDROID_NDK_SEARCH_PATHS ) + set( ANDROID_NDK_SEARCH_PATHS "${ANDROID_NDK_SEARCH_PATHS}/android-ndk" "$ENV{SystemDrive}/NVPACK/android-ndk" ) +else() + set( ANDROID_NDK_SEARCH_PATHS /opt/android-ndk "$ENV{HOME}/NVPACK/android-ndk" ) +endif() +set( ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH /opt/android-toolchain ) +set( ANDROID_SUPPORTED_ABIS_arm "armeabi-v7a;armeabi;armeabi-v7a with NEON;armeabi-v7a with VFPV3;armeabi-v6 with VFP" ) +set( ANDROID_SUPPORTED_ABIS_x86 "x86" ) -macro( __TOOLCHAIN_DETECT_API_LEVEL _path ) - SET( _expected ${ARGV1} ) - if( NOT EXISTS ${_path} ) - message( FATAL_ERROR "Could not verify Android API level. Probably you have specified invalid level value, or your copy of NDK/toolchain is broken." ) - endif() - SET( API_LEVEL_REGEX "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" ) - FILE( STRINGS ${_path} API_FILE_CONTENT REGEX "${API_LEVEL_REGEX}") - if( NOT API_FILE_CONTENT ) - message( FATAL_ERROR "Could not verify Android API level. Probably you have specified invalid level value, or your copy of NDK/toolchain is broken." ) - endif() - string( REGEX REPLACE "${API_LEVEL_REGEX}" "\\1" ANDROID_LEVEL_FOUND "${API_FILE_CONTENT}" ) - if( DEFINED _expected ) - if( NOT ${ANDROID_LEVEL_FOUND} EQUAL ${_expected} ) - message( FATAL_ERROR "Specified Android API level does not match level found. Probably your copy of NDK/toolchain is broken." ) - endif() - endif() - set( ANDROID_API_LEVEL ${ANDROID_LEVEL_FOUND} CACHE STRING "android API level" FORCE ) -endmacro() +set( ANDROID_DEFAULT_NDK_API_LEVEL 8 ) +set( ANDROID_DEFAULT_NDK_API_LEVEL_x86 9 ) -if( NOT DEFINED ANDROID_NDK ) - set( ANDROID_NDK $ENV{ANDROID_NDK} ) -endif() -if( NOT DEFINED ANDROID_NDK_TOOLCHAIN_ROOT ) - set( ANDROID_NDK_TOOLCHAIN_ROOT $ENV{ANDROID_NDK_TOOLCHAIN_ROOT} ) -endif() +macro( __LIST_FILTER listvar regex ) + if( ${listvar} ) + foreach( __val ${${listvar}} ) + if( __val MATCHES "${regex}" ) + list( REMOVE_ITEM ${listvar} "${__val}" ) + endif() + endforeach() + endif() +endmacro() -#set path for android NDK -- look -if( NOT EXISTS "${ANDROID_NDK}" AND NOT DEFINED ANDROID_NDK_TOOLCHAIN_ROOT ) - foreach(ndk_version ${ANDROID_NDK_SUPPORTED_VERSIONS}) - if( EXISTS ${ANDROID_NDK_DEFAULT_SEARCH_PATH}${ndk_version} ) - set ( ANDROID_NDK ${ANDROID_NDK_DEFAULT_SEARCH_PATH}${ndk_version} ) - message( STATUS "Using default path for android NDK ${ANDROID_NDK}" ) - message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_NDK" ) +macro( __INIT_VARIABLE var_name ) + set( __test_path 0 ) + foreach( __var ${ARGN} ) + if( __var STREQUAL "PATH" ) + set( __test_path 1 ) break() endif() endforeach() -endif() + if( __test_path AND NOT EXISTS "${${var_name}}" ) + unset( ${var_name} CACHE ) + endif() + if( "${${var_name}}" STREQUAL "" ) + set( __values 0 ) + foreach( __var ${ARGN} ) + if( __var STREQUAL "VALUES" ) + set( __values 1 ) + elseif( NOT __var STREQUAL "PATH" ) + set( __obsolete 0 ) + if( __var MATCHES "^OBSOLETE_.*$" ) + string( REPLACE "OBSOLETE_" "" __var "${__var}" ) + set( __obsolete 1 ) + endif() + if( __var MATCHES "^ENV_.*$" ) + string( REPLACE "ENV_" "" __var "${__var}" ) + set( __value "$ENV{${__var}}" ) + elseif( DEFINED ${__var} ) + set( __value "${${__var}}" ) + else() + if( __values ) + set( __value "${__var}" ) + else() + set( __value "" ) + endif() + endif() + if( NOT "${__value}" STREQUAL "" ) + if( __test_path ) + if( EXISTS "${__value}" ) + set( ${var_name} "${__value}" ) + if( __obsolete ) + 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." ) + endif() + break() + endif() + else() + set( ${var_name} "${__value}" ) + if( __obsolete ) + message( WARNING "Using value of obsolete variable ${__var} as initial value for ${var_name}. Please note, that ${__var} can be completely removed in future versions of the toolchain." ) + endif() + break() + endif() + endif() + endif() + endforeach() + unset( __value ) + unset( __values ) + unset( __obsolete ) + endif() + unset( __test_path ) +endmacro() -if( EXISTS "${ANDROID_NDK}" ) - set( ANDROID_NDK "${ANDROID_NDK}" CACHE PATH "root of the android ndk" FORCE ) - - if( APPLE ) - set( NDKSYSTEM "darwin-x86" ) - elseif( WIN32 ) - set( NDKSYSTEM "windows" ) - set( TOOL_OS_SUFFIX ".exe" ) - elseif( UNIX ) - set( NDKSYSTEM "linux-x86" ) +macro( __DETECT_NATIVE_API_LEVEL _var _path ) + SET( __ndkApiLevelRegex "^[\t ]*#define[\t ]+__ANDROID_API__[\t ]+([0-9]+)[\t ]*$" ) + FILE( STRINGS ${_path} __apiFileContent REGEX "${__ndkApiLevelRegex}" ) + if( NOT __apiFileContent ) + 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." ) + endif() + string( REGEX REPLACE "${__ndkApiLevelRegex}" "\\1" ${_var} "${__apiFileContent}" ) + unset( __apiFileContent ) + unset( __ndkApiLevelRegex ) +endmacro() + +macro( __DETECT_TOOLCHAIN_MACHINE_NAME _var _root ) + file( GLOB __gccExePath "${_root}/bin/*-gcc${TOOL_OS_SUFFIX}" ) + __LIST_FILTER( __gccExePath "bin/[.].*-gcc${TOOL_OS_SUFFIX}$" ) + list( LENGTH __gccExePath __gccExePathsCount ) + if( NOT __gccExePathsCount EQUAL 1 ) + message( WARNING "Could not uniquely determine machine name for compiler from ${_root}." ) + set( ${_var} "" ) else() - message( FATAL_ERROR "Your platform is not supported" ) + get_filename_component( __gccExeName "${__gccExePath}" NAME_WE ) + string( REPLACE "-gcc" "" ${_var} "${__gccExeName}" ) + endif() + unset( __gccExePath ) + unset( __gccExePathsCount ) + unset( __gccExeName ) +endmacro() + +macro( __COPY_IF_DIFFERENT _source _destination ) + execute_process( COMMAND "${CMAKE_COMMAND}" -E copy_if_different "${_source}" "${_destination}" RESULT_VARIABLE __fileCopyProcess ) + if( NOT __fileCopyProcess EQUAL 0 OR NOT EXISTS "${_destination}") + message( SEND_ERROR "Failed copying of ${_source} to the ${_destination}" ) endif() + unset( __fileCopyProcess ) +endmacro() + - set( ANDROID_API_LEVEL $ENV{ANDROID_API_LEVEL} ) - string( REGEX REPLACE "[\t ]*android-([0-9]+)[\t ]*" "\\1" ANDROID_API_LEVEL "${ANDROID_API_LEVEL}" ) - string( REGEX REPLACE "[\t ]*([0-9]+)[\t ]*" "\\1" ANDROID_API_LEVEL "${ANDROID_API_LEVEL}" ) +#stl version: by default gnustl_static will be used +set( ANDROID_USE_STLPORT FALSE CACHE BOOL "Experimental: use stlport_static instead of gnustl_static") +mark_as_advanced( ANDROID_USE_STLPORT ) - set( PossibleAndroidLevels "3;4;5;8;9" ) - set( ANDROID_API_LEVEL ${ANDROID_API_LEVEL} CACHE STRING "android API level" ) - set_property( CACHE ANDROID_API_LEVEL PROPERTY STRINGS ${PossibleAndroidLevels} ) - - if( NOT ANDROID_API_LEVEL GREATER 2 ) - set( ANDROID_API_LEVEL 8) - message( STATUS "Using default android API level android-${ANDROID_API_LEVEL}" ) - message( STATUS " If you prefer to use a different API level, please define the variable: ANDROID_API_LEVEL" ) +#fight against cygwin +set( ANDROID_FORBID_SYGWIN TRUE CACHE BOOL "Prevent cmake from working under cygwin and using cygwin tools") +mark_as_advanced( ANDROID_FORBID_SYGWIN ) +if( ANDROID_FORBID_SYGWIN ) + if( CYGWIN ) + 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." ) endif() - set( ANDROID_NDK_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/${NDKSYSTEM}" ) - set( ANDROID_NDK_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_API_LEVEL}/arch-arm" ) - - __TOOLCHAIN_DETECT_API_LEVEL( "${ANDROID_NDK_SYSROOT}/usr/include/android/api-level.h" ${ANDROID_API_LEVEL} ) - - #message( STATUS "Using android NDK from ${ANDROID_NDK}" ) - set( BUILD_WITH_ANDROID_NDK True ) -else() - #try to find toolchain - if( NOT EXISTS "${ANDROID_NDK_TOOLCHAIN_ROOT}" ) - set( ANDROID_NDK_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAIN_DEFAULT_SEARCH_PATH}" ) - message( STATUS "Using default path for toolchain ${ANDROID_NDK_TOOLCHAIN_ROOT}" ) - message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_NDK_TOOLCHAIN_ROOT" ) + if( CMAKE_HOST_WIN32 ) + #remove cygwin from PATH + set( __new_path "$ENV{PATH}") + __LIST_FILTER( __new_path "cygwin" ) + set(ENV{PATH} "${__new_path}") + unset(__new_path) endif() +endif() - set( ANDROID_NDK_TOOLCHAIN_ROOT "${ANDROID_NDK_TOOLCHAIN_ROOT}" CACHE PATH "root of the Android NDK standalone toolchain" FORCE ) - set( ANDROID_NDK_SYSROOT "${ANDROID_NDK_TOOLCHAIN_ROOT}/sysroot" ) +#detect current host platform +set( TOOL_OS_SUFFIX "" ) +if( CMAKE_HOST_APPLE ) + set( ANDROID_NDK_HOST_SYSTEM_NAME "darwin-x86" ) +elseif( CMAKE_HOST_WIN32 ) + set( ANDROID_NDK_HOST_SYSTEM_NAME "windows" ) + set( TOOL_OS_SUFFIX ".exe" ) +elseif( CMAKE_HOST_UNIX ) + set( ANDROID_NDK_HOST_SYSTEM_NAME "linux-x86" ) +else() + message( FATAL_ERROR "Cross-compilation on your platform is not supported by this cmake toolchain" ) +endif() - if( NOT EXISTS "${ANDROID_NDK_TOOLCHAIN_ROOT}" ) - message( FATAL_ERROR "neither ${ANDROID_NDK} nor ${ANDROID_NDK_TOOLCHAIN_ROOT} does not exist! +#see if we have path to Android NDK +__INIT_VARIABLE( ANDROID_NDK PATH ENV_ANDROID_NDK ) +if( NOT ANDROID_NDK ) + #see if we have path to Android standalone toolchain + __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ENV_ANDROID_STANDALONE_TOOLCHAIN OBSOLETE_ANDROID_NDK_TOOLCHAIN_ROOT OBSOLETE_ENV_ANDROID_NDK_TOOLCHAIN_ROOT ) + + if( NOT ANDROID_STANDALONE_TOOLCHAIN ) + #try to find Android NDK in one of the the default locations + set( __ndkSearchPaths ) + foreach( __ndkSearchPath ${ANDROID_NDK_SEARCH_PATHS} ) + foreach( suffix ${ANDROID_SUPPORTED_NDK_VERSIONS} ) + list( APPEND __ndkSearchPaths "${__ndkSearchPath}${suffix}" ) + endforeach() + endforeach() + __INIT_VARIABLE( ANDROID_NDK PATH VALUES ${__ndkSearchPaths} ) + unset( __ndkSearchPaths ) + + if( ANDROID_NDK ) + message( STATUS "Using default path for Android NDK: ${ANDROID_NDK}" ) + message( STATUS " If you prefer to use a different location, please define a cmake or environment variable: ANDROID_NDK" ) + else() + #try to find Android standalone toolchain in one of the the default locations + __INIT_VARIABLE( ANDROID_STANDALONE_TOOLCHAIN PATH ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH ) + + if( ANDROID_STANDALONE_TOOLCHAIN ) + message( STATUS "Using default path for standalone toolchain ${ANDROID_STANDALONE_TOOLCHAIN}" ) + message( STATUS " If you prefer to use a different location, please define the variable: ANDROID_STANDALONE_TOOLCHAIN" ) + endif( ANDROID_STANDALONE_TOOLCHAIN ) + endif( ANDROID_NDK ) + endif( NOT ANDROID_STANDALONE_TOOLCHAIN ) +endif( NOT ANDROID_NDK ) + +#remember found paths +if( ANDROID_NDK ) + get_filename_component( ANDROID_NDK "${ANDROID_NDK}" ABSOLUTE ) + #try to detect change + if( CMAKE_AR ) + string( LENGTH "${ANDROID_NDK}" __length ) + string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidNdkPreviousPath ) + if( NOT __androidNdkPreviousPath STREQUAL ANDROID_NDK ) + message( FATAL_ERROR "It is not possible to change path to the NDK on subsequent run." ) + endif() + unset( __androidNdkPreviousPath ) + unset( __length ) + endif() + set( ANDROID_NDK "${ANDROID_NDK}" CACHE INTERNAL "Path of the Android NDK" ) + set( BUILD_WITH_ANDROID_NDK True ) +elseif( ANDROID_STANDALONE_TOOLCHAIN ) + get_filename_component( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" ABSOLUTE ) + #try to detect change + if( CMAKE_AR ) + string( LENGTH "${ANDROID_STANDALONE_TOOLCHAIN}" __length ) + string( SUBSTRING "${CMAKE_AR}" 0 ${__length} __androidStandaloneToolchainPreviousPath ) + if( NOT __androidStandaloneToolchainPreviousPath STREQUAL ANDROID_STANDALONE_TOOLCHAIN ) + message( FATAL_ERROR "It is not possible to change path to the Android standalone toolchain on subsequent run." ) + endif() + unset( __androidStandaloneToolchainPreviousPath ) + unset( __length ) + endif() + set( ANDROID_STANDALONE_TOOLCHAIN "${ANDROID_STANDALONE_TOOLCHAIN}" CACHE INTERNAL "Path of the Android standalone toolchain" ) + set( BUILD_WITH_STANDALONE_TOOLCHAIN True ) +else() + list(GET ANDROID_NDK_SEARCH_PATHS 0 ANDROID_NDK_SEARCH_PATH) + message( FATAL_ERROR "Could not find neither Android NDK nor Android standalone toolcahin. You should either set an environment variable: export ANDROID_NDK=~/my-android-ndk or - export ANDROID_NDK_TOOLCHAIN_ROOT=~/my-android-toolchain + export ANDROID_STANDALONE_TOOLCHAIN=~/my-android-toolchain or put the toolchain or NDK in the default path: - sudo ln -s ~/my-android-ndk ${ANDROID_NDK_DEFAULT_SEARCH_PATH} - sudo ln -s ~/my-android-toolchain ${ANDROID_NDK_TOOLCHAIN_DEFAULT_SEARCH_PATH}" ) + sudo ln -s ~/my-android-ndk ${ANDROID_NDK_SEARCH_PATH} + sudo ln -s ~/my-android-toolchain ${ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH}" ) +endif() + +#get all the details about standalone toolchain +if( BUILD_WITH_STANDALONE_TOOLCHAIN ) + __DETECT_NATIVE_API_LEVEL( ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot/usr/include/android/api-level.h" ) + set( __availableToolchains "standalone" ) + __DETECT_TOOLCHAIN_MACHINE_NAME( __availableToolchainMachines "${ANDROID_STANDALONE_TOOLCHAIN}" ) + if( NOT __availableToolchainMachines ) + message( FATAL_ERROR "Could not determine machine name of your toolchain. Probably your Android standalone toolchain is broken." ) + endif() + if( __availableToolchainMachines MATCHES i686 ) + set( __availableToolchainArchs "x86" ) + elseif( __availableToolchainMachines MATCHES arm ) + set( __availableToolchainArchs "arm" ) + endif() + if( ANDROID_COMPILER_VERSION ) + #do not run gcc every time because it is relatevely expencive + set( __availableToolchainCompilerVersions "${ANDROID_COMPILER_VERSION}" ) + else() + execute_process( COMMAND "${ANDROID_STANDALONE_TOOLCHAIN}/bin/${__availableToolchainMachines}-gcc${TOOL_OS_SUFFIX}" --version + OUTPUT_VARIABLE __availableToolchainCompilerVersions OUTPUT_STRIP_TRAILING_WHITESPACE ) + string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+" __availableToolchainCompilerVersions "${__availableToolchainCompilerVersions}" ) + endif() +endif() + +#get all the details about NDK +if( BUILD_WITH_ANDROID_NDK ) + file( GLOB ANDROID_SUPPORTED_NATIVE_API_LEVELS RELATIVE "${ANDROID_NDK}/platforms" "${ANDROID_NDK}/platforms/android-*" ) + string( REPLACE "android-" "" ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_SUPPORTED_NATIVE_API_LEVELS}" ) + file( GLOB __availableToolchains RELATIVE "${ANDROID_NDK}/toolchains" "${ANDROID_NDK}/toolchains/*" ) + __LIST_FILTER( __availableToolchains "^[.]" ) + set( __availableToolchainMachines "" ) + set( __availableToolchainArchs "" ) + set( __availableToolchainCompilerVersions "" ) + foreach( __toolchain ${__availableToolchains} ) + __DETECT_TOOLCHAIN_MACHINE_NAME( __machine "${ANDROID_NDK}/toolchains/${__toolchain}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) + if( __machine ) + string( REGEX MATCH "[0-9]+.[0-9]+.[0-9]+$" __version "${__toolchain}" ) + string( REGEX MATCH "^[^-]+" __arch "${__toolchain}" ) + list( APPEND __availableToolchainMachines ${__machine} ) + list( APPEND __availableToolchainArchs ${__arch} ) + list( APPEND __availableToolchainCompilerVersions ${__version} ) + else() + list( REMOVE_ITEM __availableToolchains "${__toolchain}" ) + endif() + endforeach() + if( NOT __availableToolchains ) + message( FATAL_ERROR "Could not any working toolchain in the NDK. Probably your Android NDK is broken." ) endif() - - __TOOLCHAIN_DETECT_API_LEVEL( "${ANDROID_NDK_SYSROOT}/usr/include/android/api-level.h" ) +endif() - #message( STATUS "Using android NDK standalone toolchain from ${ANDROID_NDK_TOOLCHAIN_ROOT}" ) - set( BUILD_WITH_ANDROID_NDK_TOOLCHAIN True ) +#build list of available ABIs +if( NOT ANDROID_SUPPORTED_ABIS ) + set( ANDROID_SUPPORTED_ABIS "" ) + set( __uniqToolchainArchNames ${__availableToolchainArchs} ) + list( REMOVE_DUPLICATES __uniqToolchainArchNames ) + list( SORT __uniqToolchainArchNames ) + foreach( __arch ${__uniqToolchainArchNames} ) + list( APPEND ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${__arch}} ) + endforeach() + unset( __uniqToolchainArchNames ) + if( NOT ANDROID_SUPPORTED_ABIS ) + message( FATAL_ERROR "No one of known Android ABIs is supported by this cmake toolchain." ) + endif() endif() -# specify the cross compiler -set( CMAKE_C_COMPILER "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" FORCE ) -set( CMAKE_CXX_COMPILER "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" FORCE ) -#there may be a way to make cmake deduce these TODO deduce the rest of the tools -set( CMAKE_AR "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" FORCE ) -set( CMAKE_LINKER "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" FORCE ) -set( CMAKE_NM "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" FORCE ) -set( CMAKE_OBJCOPY "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" FORCE ) -set( CMAKE_OBJDUMP "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" FORCE ) -set( CMAKE_STRIP "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" FORCE ) -set( CMAKE_RANLIB "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/arm-linux-androideabi-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" FORCE ) - -#setup build targets, mutually exclusive -set( PossibleArmTargets "armeabi;armeabi-v7a;armeabi-v7a with NEON;armeabi-v7a with VFPV3" ) -#compatibility junk for previous version of toolchain -if( DEFINED ARM_TARGETS AND NOT DEFINED ARM_TARGET ) - set( ARM_TARGET "${ARM_TARGETS}" ) -endif() -IF( NOT ARM_TARGET) - set( ARM_TARGET armeabi-v7a ) -ENDIF() -set( ARM_TARGET "${ARM_TARGET}" CACHE INTERNAL "the arm target for android, recommend armeabi-v7a for floating point support and NEON." ) -set_property( CACHE ARM_TARGET PROPERTY STRINGS ${PossibleArmTargets} ) - -#set these flags for client use -if( ARM_TARGET STREQUAL "armeabi" ) +#choose target ABI +__INIT_VARIABLE( ANDROID_ABI OBSOLETE_ARM_TARGET OBSOLETE_ARM_TARGETS VALUES ${ANDROID_SUPPORTED_ABIS} ) +#verify that target ABI is supported +list( FIND ANDROID_SUPPORTED_ABIS "${ANDROID_ABI}" __androidAbiIdx ) +if( __androidAbiIdx EQUAL -1 ) + string( REPLACE ";" "\", \"", PRINTABLE_ANDROID_SUPPORTED_ABIS "${ANDROID_SUPPORTED_ABIS}" ) + message( FATAL_ERROR "Specified ANDROID_ABI = \"${ANDROID_ABI}\" is not supported by this cmake toolchain or your NDK/toolchain. + Supported values are: \"${PRINTABLE_ANDROID_SUPPORTED_ABIS}\" + " ) +endif() +unset( __androidAbiIdx ) + +#remember target ABI +set( ANDROID_ABI "${ANDROID_ABI}" CACHE STRING "The target ABI for Android. If arm, then armeabi-v7a is recommended for hardware floating point." FORCE ) + +#set target ABI options +if( ANDROID_ABI STREQUAL "x86" ) + set( X86 true ) + set( ANDROID_NDK_ABI_NAME "x86" ) + set( ANDROID_ARCH_NAME "x86" ) + set( CMAKE_SYSTEM_PROCESSOR "i686" ) +elseif( ANDROID_ABI STREQUAL "armeabi" ) set( ARMEABI true ) - set( ARMEABI_NDK_NAME "armeabi" ) - set( NEON false ) + set( ANDROID_NDK_ABI_NAME "armeabi" ) + set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv5te" ) -else() - if( ARM_TARGET STREQUAL "armeabi-v7a with NEON" ) - set( NEON true ) - set( VFPV3 true ) - elseif( ARM_TARGET STREQUAL "armeabi-v7a with VFPV3" ) - set( VFPV3 true ) - elseif( NOT ARM_TARGET STREQUAL "armeabi-v7a") - message( FATAL_ERROR "Unsupported ARM_TARGET=${ARM_TARGET} is specified. -Supported values are: \"armeabi\", \"armeabi-v7a\", \"armeabi-v7a with NEON\", \"armeabi-v7a with VFPV3\" -" ) - endif() +elseif( ANDROID_ABI STREQUAL "armeabi-v6 with VFP" ) + set( ARMEABI_V6 true ) + set( ANDROID_NDK_ABI_NAME "armeabi" ) + set( ANDROID_ARCH_NAME "arm" ) + set( CMAKE_SYSTEM_PROCESSOR "armv6" ) + #need always fallback to older platform + set( ARMEABI true ) +elseif( ANDROID_ABI STREQUAL "armeabi-v7a") + set( ARMEABI_V7A true ) + set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) + set( ANDROID_ARCH_NAME "arm" ) + set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) +elseif( ANDROID_ABI STREQUAL "armeabi-v7a with VFPV3" ) + set( ARMEABI_V7A true ) + set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) + set( ANDROID_ARCH_NAME "arm" ) + set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) + set( VFPV3 true ) +elseif( ANDROID_ABI STREQUAL "armeabi-v7a with NEON" ) set( ARMEABI_V7A true ) - set( ARMEABI_NDK_NAME "armeabi-v7a" ) + set( ANDROID_NDK_ABI_NAME "armeabi-v7a" ) + set( ANDROID_ARCH_NAME "arm" ) set( CMAKE_SYSTEM_PROCESSOR "armv7-a" ) + set( VFPV3 true ) + set( NEON true ) +else() + message( SEND_ERROR "Unknown ANDROID_ABI=\"${ANDROID_ABI}\" is specified." ) endif() -#setup output directories -set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" ) +set( ANDROID_SUPPORTED_ABIS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} CACHE INTERNAL "ANDROID_ABI can be changed only to one of these ABIs. Changing to any other ABI requires to reset cmake cache." ) +if( CMAKE_VERSION VERSION_GREATER "2.8" ) + list( SORT ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME} ) + set_property( CACHE ANDROID_ABI PROPERTY STRINGS ${ANDROID_SUPPORTED_ABIS_${ANDROID_ARCH_NAME}} ) +endif() -SET( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS OFF CACHE BOOL "") -if( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ) - if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) - set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ARMEABI_NDK_NAME}" CACHE PATH "Output directory for applications") - else() - set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications") - endif() - set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ARMEABI_NDK_NAME}" CACHE PATH "path for android libs") - set( CMAKE_INSTALL_PREFIX "${ANDROID_NDK_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) +if( ANDROID_ARCH_NAME STREQUAL "arm" AND NOT ARMEABI_V6 ) + __INIT_VARIABLE( ANDROID_FORCE_ARM_BUILD OBSOLETE_FORCE_ARM VALUES OFF ) + set( ANDROID_FORCE_ARM_BUILD ${ANDROID_FORCE_ARM_BUILD} CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" FORCE ) + mark_as_advanced( ANDROID_FORCE_ARM_BUILD ) +else() + unset( ANDROID_FORCE_ARM_BUILD CACHE ) endif() -SET( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ON CACHE INTERNAL "" FORCE) -# where is the target environment -set( CMAKE_FIND_ROOT_PATH "${ANDROID_NDK_TOOLCHAIN_ROOT}/bin" "${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi" "${ANDROID_NDK_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" ) +#choose toolchain +if( ANDROID_TOOLCHAIN_NAME ) + list( FIND __availableToolchains "${ANDROID_TOOLCHAIN_NAME}" __toolchainIdx ) + if( __toolchainIdx EQUAL -1 ) + message( FATAL_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is missing. You need to remove CMakeCache.txt and rerun cmake manually to change the toolchain" ) + endif() + list( GET __availableToolchainArchs ${__toolchainIdx} __toolchainArch ) + if( NOT __toolchainArch STREQUAL ANDROID_ARCH_NAME ) + message( SEND_ERROR "Previously selected toolchain \"${ANDROID_TOOLCHAIN_NAME}\" is not able to compile binaries for the \"${ANDROID_ARCH_NAME}\" platform." ) + endif() +else() + set( __toolchainIdx -1 ) + set( __applicableToolchains "" ) + set( __toolchainMaxVersion "0.0.0" ) + list( LENGTH __availableToolchains __availableToolchainsCount ) + math( EXPR __availableToolchainsCount "${__availableToolchainsCount}-1" ) + foreach( __idx RANGE ${__availableToolchainsCount} ) + list( GET __availableToolchainArchs ${__idx} __toolchainArch ) + if( __toolchainArch STREQUAL ANDROID_ARCH_NAME ) + list( GET __availableToolchainCompilerVersions ${__idx} __toolchainVersion ) + if( __toolchainVersion VERSION_GREATER __toolchainMaxVersion ) + set( __toolchainMaxVersion "${__toolchainVersion}" ) + set( __toolchainIdx ${__idx} ) + endif() + endif() + endforeach() + unset( __availableToolchainsCount ) + unset( __toolchainMaxVersion ) + unset( __toolchainVersion ) +endif() +unset( __toolchainArch ) +if( __toolchainIdx EQUAL -1 ) + message( FATAL_ERROR "No one of available compiler toolchains is able to compile for ${ANDROID_ARCH_NAME} platform." ) +endif() +list( GET __availableToolchains ${__toolchainIdx} ANDROID_TOOLCHAIN_NAME ) +list( GET __availableToolchainMachines ${__toolchainIdx} ANDROID_TOOLCHAIN_MACHINE_NAME ) +list( GET __availableToolchainCompilerVersions ${__toolchainIdx} ANDROID_COMPILER_VERSION ) +set( ANDROID_TOOLCHAIN_NAME "${ANDROID_TOOLCHAIN_NAME}" CACHE INTERNAL "Name of toolchain used" ) +set( ANDROID_COMPILER_VERSION "${ANDROID_COMPILER_VERSION}" CACHE INTERNAL "compiler version from selected toolchain" ) +unset( __toolchainIdx ) +unset( __availableToolchains ) +unset( __availableToolchainMachines ) +unset( __availableToolchainArchs ) +unset( __availableToolchainCompilerVersions ) + +#choose native API level +__INIT_VARIABLE( ANDROID_NATIVE_API_LEVEL ENV_ANDROID_NATIVE_API_LEVEL ANDROID_API_LEVEL ENV_ANDROID_API_LEVEL ANDROID_DEFAULT_NDK_API_LEVEL_${ANDROID_ARCH_NAME} ANDROID_DEFAULT_NDK_API_LEVEL ) +string( REGEX MATCH "[0-9]+" ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" ) +#validate +list( FIND ANDROID_SUPPORTED_NATIVE_API_LEVELS "${ANDROID_NATIVE_API_LEVEL}" __levelIdx ) +if( __levelIdx EQUAL -1 ) + message( SEND_ERROR "Specified Android native API level (${ANDROID_NATIVE_API_LEVEL}) is not supported by your NDK/toolchain." ) +endif() +unset( __levelIdx ) +if( BUILD_WITH_ANDROID_NDK ) + __DETECT_NATIVE_API_LEVEL( __realApiLevel "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}/usr/include/android/api-level.h" ) + if( NOT __realApiLevel EQUAL ANDROID_NATIVE_API_LEVEL ) + 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." ) + endif() + unset( __realApiLevel ) +endif() +set( ANDROID_NATIVE_API_LEVEL "${ANDROID_NATIVE_API_LEVEL}" CACHE STRING "Android API level for native code" FORCE ) +if( CMAKE_VERSION VERSION_GREATER "2.8" ) + list( SORT ANDROID_SUPPORTED_NATIVE_API_LEVELS ) + set_property( CACHE ANDROID_NATIVE_API_LEVEL PROPERTY STRINGS ${ANDROID_SUPPORTED_NATIVE_API_LEVELS} ) +endif() +#setup paths +if( BUILD_WITH_STANDALONE_TOOLCHAIN ) + set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_STANDALONE_TOOLCHAIN}" ) + set( ANDROID_SYSROOT "${ANDROID_STANDALONE_TOOLCHAIN}/sysroot" ) + set( __stlLibPath "${ANDROID_STANDALONE_TOOLCHAIN}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib" ) +endif() if( BUILD_WITH_ANDROID_NDK ) - set( STL_PATH "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++" ) - set( STL_LIBRARIES_PATH "${STL_PATH}/libs/${ARMEABI_NDK_NAME}" ) - include_directories(SYSTEM "${STL_PATH}/include" "${STL_LIBRARIES_PATH}/include" ) -# if ( NOT ARMEABI AND NOT FORCE_ARM ) -# set( STL_LIBRARIES_PATH "${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) -# endif() + set( ANDROID_TOOLCHAIN_ROOT "${ANDROID_NDK}/toolchains/${ANDROID_TOOLCHAIN_NAME}/prebuilt/${ANDROID_NDK_HOST_SYSTEM_NAME}" ) + set( ANDROID_SYSROOT "${ANDROID_NDK}/platforms/android-${ANDROID_NATIVE_API_LEVEL}/arch-${ANDROID_ARCH_NAME}" ) + if( ANDROID_USE_STLPORT ) + set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/stlport/stlport" ) + set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/stlport/libs/${ANDROID_NDK_ABI_NAME}" ) + else() + set( __stlIncludePath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/include" ) + set( __stlLibPath "${ANDROID_NDK}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_NDK_ABI_NAME}" ) + endif() endif() -if( BUILD_WITH_ANDROID_NDK_TOOLCHAIN ) - set( STL_LIBRARIES_PATH "${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi/lib" ) - if( NOT ARMEABI ) - set( STL_LIBRARIES_PATH "${STL_LIBRARIES_PATH}/${CMAKE_SYSTEM_PROCESSOR}" ) +# specify the cross compiler +set( CMAKE_C_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-gcc${TOOL_OS_SUFFIX}" CACHE PATH "gcc" ) +set( CMAKE_CXX_COMPILER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-g++${TOOL_OS_SUFFIX}" CACHE PATH "g++" ) +set( CMAKE_STRIP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-strip${TOOL_OS_SUFFIX}" CACHE PATH "strip" ) +#there may be a way to make cmake deduce these TODO deduce the rest of the tools +set( CMAKE_AR "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ar${TOOL_OS_SUFFIX}" CACHE PATH "archive" ) +set( CMAKE_LINKER "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ld${TOOL_OS_SUFFIX}" CACHE PATH "linker" ) +set( CMAKE_NM "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-nm${TOOL_OS_SUFFIX}" CACHE PATH "nm" ) +set( CMAKE_OBJCOPY "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objcopy${TOOL_OS_SUFFIX}" CACHE PATH "objcopy" ) +set( CMAKE_OBJDUMP "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-objdump${TOOL_OS_SUFFIX}" CACHE PATH "objdump" ) +set( CMAKE_RANLIB "${ANDROID_TOOLCHAIN_ROOT}/bin/${ANDROID_TOOLCHAIN_MACHINE_NAME}-ranlib${TOOL_OS_SUFFIX}" CACHE PATH "ranlib" ) +if( APPLE ) + find_program( CMAKE_INSTALL_NAME_TOOL NAMES install_name_tool ) + if( NOT CMAKE_INSTALL_NAME_TOOL ) + message( FATAL_ERROR "Could not find install_name_tool, please check your installation." ) endif() - if( NOT FORCE_ARM ) - set( STL_LIBRARIES_PATH "${STL_LIBRARIES_PATH}/thumb" ) + mark_as_advanced( CMAKE_INSTALL_NAME_TOOL ) +endif() +#export directories +set( ANDROID_SYSTEM_INCLUDE_DIRS "" ) +set( ANDROID_SYSTEM_LIB_DIRS "" ) + +#setup output directories +set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_SOURCE_DIR} CACHE PATH "root for library output, set this to change where android libs are installed to" ) +set( CMAKE_INSTALL_PREFIX "${ANDROID_TOOLCHAIN_ROOT}/user" CACHE STRING "path for installing" ) + +set( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS OFF CACHE BOOL "" ) +if( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ) + if( EXISTS "${CMAKE_SOURCE_DIR}/jni/CMakeLists.txt" ) + set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin/${ANDROID_NDK_ABI_NAME}" CACHE PATH "Output directory for applications" ) + else() + set( EXECUTABLE_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/bin" CACHE PATH "Output directory for applications" ) endif() - #for some reason this is needed? TODO figure out why... - include_directories(SYSTEM "${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi/include/c++/4.4.3/arm-linux-androideabi" ) + set( LIBRARY_OUTPUT_PATH "${LIBRARY_OUTPUT_PATH_ROOT}/libs/${ANDROID_NDK_ABI_NAME}" CACHE PATH "path for android libs" ) endif() +set( DO_NOT_CHANGE_OUTPUT_PATHS_ON_FIRST_PASS ON CACHE INTERNAL "" FORCE ) -# only search for libraries and includes in the ndk toolchain -set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) -set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) -set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) +#includes +list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_SYSROOT}/usr/include" ) +if( __stlIncludePath AND EXISTS "${__stlIncludePath}" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlIncludePath}" ) +endif() -set( CMAKE_CXX_FLAGS "-fPIC -DANDROID -Wno-psabi -fsigned-char" ) -set( CMAKE_C_FLAGS "-fPIC -DANDROID -Wno-psabi -fsigned-char" ) +#STL bits includes +if( __stlLibPath AND EXISTS "${__stlLibPath}/include" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${__stlLibPath}/include" ) +endif() +if( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb/bits" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/thumb" ) +elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}/bits" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/${CMAKE_SYSTEM_PROCESSOR}" ) +elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb/bits" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/thumb" ) +elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/bits" ) + list( APPEND ANDROID_SYSTEM_INCLUDE_DIRS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/include/c++/${ANDROID_COMPILER_VERSION}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" ) +endif() -set( FORCE_ARM OFF CACHE BOOL "Use 32-bit ARM instructions instead of Thumb-1" ) -if( NOT FORCE_ARM ) - #It is recommended to use the -mthumb compiler flag to force the generation - #of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones). - set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mthumb" ) - set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mthumb" ) +#flags and definitions +if(ANDROID_SYSROOT MATCHES "[ ;\"]") + set( ANDROID_CXX_FLAGS "--sysroot=\"${ANDROID_SYSROOT}\"" ) + # quotes will break try_compile and compiler identification + message(WARNING "Your Android system root has non-alphanumeric symbols. It can break compiler features detection and the whole build.") else() - set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -marm" ) - set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -marm" ) + set( ANDROID_CXX_FLAGS "--sysroot=${ANDROID_SYSROOT}" ) endif() -if( BUILD_WITH_ANDROID_NDK ) - set( CMAKE_CXX_FLAGS "--sysroot=\"${ANDROID_NDK_SYSROOT}\" ${CMAKE_CXX_FLAGS}" ) - set( CMAKE_C_FLAGS "--sysroot=\"${ANDROID_NDK_SYSROOT}\" ${CMAKE_C_FLAGS}" ) +remove_definitions( -DANDROID ) +add_definitions( -DANDROID ) + +# Force set compilers because standard identification works badly for us +include( CMakeForceCompiler ) +CMAKE_FORCE_C_COMPILER( "${CMAKE_C_COMPILER}" GNU ) +CMAKE_FORCE_CXX_COMPILER( "${CMAKE_CXX_COMPILER}" GNU ) +set( CMAKE_SIZEOF_VOID_P 4 ) +set( CMAKE_C_SIZEOF_DATA_PTR 4 ) +set( CMAKE_CXX_SIZEOF_DATA_PTR 4 ) + +# NDK flags +if( ARMEABI OR ARMEABI_V7A ) + # NDK also defines -ffunction-sections -funwind-tables but they result in worse OpenCV performance + set( CMAKE_CXX_FLAGS "-fPIC -Wno-psabi" ) + set( CMAKE_C_FLAGS "-fPIC -Wno-psabi" ) + if( ANDROID_USE_STLPORT ) + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" ) + else() + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" ) + endif() + remove_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ) + add_definitions( -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ) + # extra arm-specific flags + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -fsigned-char" ) +elseif( X86 ) + set( CMAKE_CXX_FLAGS "-ffunction-sections -funwind-tables" ) + set( CMAKE_C_FLAGS "-ffunction-sections -funwind-tables" ) + if( ANDROID_USE_STLPORT ) + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions" ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions" ) + else() + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -frtti -fexceptions" ) + set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fexceptions" ) + endif() +else() + set( CMAKE_CXX_FLAGS "" ) + set( CMAKE_C_FLAGS "" ) +endif() - # workaround for ugly cmake bug - compiler identification replaces all spaces (and somethimes " !!!) in compiler flags with ; symbol - # as result identification fails if ANDROID_NDK_SYSROOT contain spaces - include(CMakeForceCompiler) - CMAKE_FORCE_C_COMPILER("${CMAKE_C_COMPILER}" GNU) - CMAKE_FORCE_CXX_COMPILER("${CMAKE_CXX_COMPILER}" GNU) +#release and debug flags +if( ARMEABI OR ARMEABI_V7A ) + if( NOT ANDROID_FORCE_ARM_BUILD AND NOT ARMEABI_V6 ) + #It is recommended to use the -mthumb compiler flag to force the generation + #of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones). + # O3 instead of O2/Os in release mode - like cmake sets for desktop gcc + set( CMAKE_CXX_FLAGS_RELEASE "-mthumb -O3" ) + set( CMAKE_C_FLAGS_RELEASE "-mthumb -O3" ) + set( CMAKE_CXX_FLAGS_DEBUG "-marm -Os -finline-limit=64" ) + set( CMAKE_C_FLAGS_DEBUG "-marm -Os -finline-limit=64" ) + else() + # always compile ARMEABI_V6 in arm mode; otherwise there is no difference from ARMEABI + # O3 instead of O2/Os in release mode - like cmake sets for desktop gcc + set( CMAKE_CXX_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" ) + set( CMAKE_C_FLAGS_RELEASE "-marm -O3 -fstrict-aliasing" ) + set( CMAKE_CXX_FLAGS_DEBUG "-marm -O0 -finline-limit=300" ) + set( CMAKE_C_FLAGS_DEBUG "-marm -O0 -finline-limit=300" ) + endif() +elseif( X86 ) + set( CMAKE_CXX_FLAGS_RELEASE "-O3 -fstrict-aliasing" ) + set( CMAKE_C_FLAGS_RELEASE "-O3 -fstrict-aliasing" ) + set( CMAKE_CXX_FLAGS_DEBUG "-O0 -finline-limit=300" ) + set( CMAKE_C_FLAGS_DEBUG "-O0 -finline-limit=300" ) endif() +set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" ) +set( CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -fomit-frame-pointer -DNDEBUG" ) +set( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" ) +set( CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -fno-strict-aliasing -fno-omit-frame-pointer -DDEBUG -D_DEBUG" ) +#ABI-specific flags if( ARMEABI_V7A ) - #these are required flags for android armv7-a - set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) - set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp" ) if( NEON ) - set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=neon" ) - set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=neon" ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=neon" ) elseif( VFPV3 ) - set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=vfpv3" ) - set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=vfpv3" ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfpv3" ) + else() + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -mfpu=vfp" ) endif() +elseif( ARMEABI_V6 ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv6 -mfloat-abi=softfp -mfpu=vfp" ) +elseif( ARMEABI ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS} -march=armv5te -mtune=xscale -msoft-float" ) +elseif( X86 ) + set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" )#sse? endif() -set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" ) -set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags" ) - -#-Wl,-L${LIBCPP_LINK_DIR},-lstdc++,-lsupc++ -#-L${LIBCPP_LINK_DIR} -lstdc++ -lsupc++ -#Also, this is *required* to use the following linker flags that routes around -#a CPU bug in some Cortex-A8 implementations: -set( LINKER_FLAGS "-Wl,--fix-cortex-a8 -L\"${STL_LIBRARIES_PATH}\" -L\"${CMAKE_INSTALL_PREFIX}/libs/${ARMEABI_NDK_NAME}\" -lstdc++ -lsupc++ " ) - -set( NO_UNDEFINED ON CACHE BOOL "Don't all undefined symbols" ) -if( NO_UNDEFINED ) +#linker flags +list( APPEND ANDROID_SYSTEM_LIB_DIRS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}" "${CMAKE_INSTALL_PREFIX}/libs/${ANDROID_NDK_ABI_NAME}" ) +set( LINKER_FLAGS "" ) +#STL +if( ANDROID_USE_STLPORT ) + if( EXISTS "${__stlLibPath}/libstlport_static.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/libstlport_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) + endif() + if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstlport_static.a" ) + set( LINKER_FLAGS "${LINKER_FLAGS} -Wl,--start-group -lstlport_static" ) + endif() +else( ANDROID_USE_STLPORT ) + if( EXISTS "${__stlLibPath}/libgnustl_static.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/libgnustl_static.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/${CMAKE_SYSTEM_PROCESSOR}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${__stlLibPath}/thumb/libstdc++.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/thumb/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + elseif( EXISTS "${__stlLibPath}/libstdc++.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/libstdc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + endif() + if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libstdc++.a" ) + set( LINKER_FLAGS "${LINKER_FLAGS} -lstdc++" ) + endif() + + #gcc exception & rtti support + if( EXISTS "${__stlLibPath}/libsupc++.a" ) + __COPY_IF_DIFFERENT( "${__stlLibPath}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" ) + __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" ) + __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/${CMAKE_SYSTEM_PROCESSOR}/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + elseif( ANDROID_ARCH_NAME STREQUAL "arm" AND EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" ) + __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/thumb/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + elseif( EXISTS "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" ) + __COPY_IF_DIFFERENT( "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}/lib/libsupc++.a" "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + endif() + if( EXISTS "${CMAKE_BINARY_DIR}/systemlibs/${ANDROID_NDK_ABI_NAME}/libsupc++.a" ) + set( LINKER_FLAGS "${LINKER_FLAGS} -lsupc++" ) + endif() +endif( ANDROID_USE_STLPORT ) + +#cleanup for STL search +unset( __stlIncludePath ) +unset( __stlLibPath ) + +#other linker flags +__INIT_VARIABLE( ANDROID_NO_UNDEFINED OBSOLETE_NO_UNDEFINED VALUES ON ) +set( ANDROID_NO_UNDEFINED ${ANDROID_NO_UNDEFINED} CACHE BOOL "Show all undefined symbols as linker errors" FORCE ) +mark_as_advanced( ANDROID_NO_UNDEFINED ) +if( ANDROID_NO_UNDEFINED ) set( LINKER_FLAGS "-Wl,--no-undefined ${LINKER_FLAGS}" ) endif() -set( CMAKE_SHARED_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" FORCE ) -set( CMAKE_MODULE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" FORCE ) -set( CMAKE_EXE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" FORCE ) +if (ANDROID_NDK MATCHES "-r[56].?$") + #libGLESv2.so in NDK's prior to r7 refers to exteranal symbols. So this flag option is required for all projects using OpenGL from native. + __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES ON ) +else() + __INIT_VARIABLE( ANDROID_SO_UNDEFINED VALUES OFF ) +endif() +set( ANDROID_SO_UNDEFINED ${ANDROID_SO_UNDEFINED} CACHE BOOL "Allows or disallows undefined symbols in shared libraries" FORCE ) +mark_as_advanced( ANDROID_SO_UNDEFINED ) +if( ANDROID_SO_UNDEFINED ) + set( LINKER_FLAGS "${LINKER_FLAGS} -Wl,-allow-shlib-undefined" ) +endif() + +if( ARMEABI_V7A ) + # this is *required* to use the following linker flags that routes around + # a CPU bug in some Cortex-A8 implementations: + set( LINKER_FLAGS "-Wl,--fix-cortex-a8 ${LINKER_FLAGS}" ) +endif() + +#cache flags +set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags" ) +set( CMAKE_C_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c flags" ) +set( CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c++ Release flags" ) +set( CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "c Release flags" ) +set( CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c++ Debug flags" ) +set( CMAKE_C_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "c Debug flags" ) +set( CMAKE_SHARED_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" ) +set( CMAKE_MODULE_LINKER_FLAGS "${LINKER_FLAGS}" CACHE STRING "linker flags" ) +set( CMAKE_EXE_LINKER_FLAGS "-Wl,--gc-sections -Wl,-z,nocopyreloc ${LINKER_FLAGS}" CACHE STRING "linker flags" ) + +include_directories( SYSTEM ${ANDROID_SYSTEM_INCLUDE_DIRS} ) +link_directories( ${ANDROID_SYSTEM_LIB_DIRS} ) + +#finish flags +set( ANDROID_CXX_FLAGS "${ANDROID_CXX_FLAGS}" CACHE INTERNAL "Extra Android falgs") +set( CMAKE_CXX_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_CXX_FLAGS}" ) +set( CMAKE_C_FLAGS "${ANDROID_CXX_FLAGS} ${CMAKE_C_FLAGS}" ) #set these global flags for cmake client scripts to change behavior set( ANDROID True ) set( BUILD_ANDROID True ) +# where is the target environment +set( CMAKE_FIND_ROOT_PATH "${ANDROID_TOOLCHAIN_ROOT}/bin" "${ANDROID_TOOLCHAIN_ROOT}/${ANDROID_TOOLCHAIN_MACHINE_NAME}" "${ANDROID_SYSROOT}" "${CMAKE_INSTALL_PREFIX}" "${CMAKE_INSTALL_PREFIX}/share" ) + +# only search for libraries and includes in the ndk toolchain +set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) +set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) +set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) + + #macro to find packages on the host OS -macro(find_host_package) +macro( find_host_package ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) @@ -378,13 +899,15 @@ macro(find_host_package) find_package( ${ARGN} ) SET( WIN32 ) SET( APPLE ) - SET( UNIX 1) + SET( UNIX 1 ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) endmacro() + + #macro to find programs on the host OS -macro(find_host_program) +macro( find_host_program ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY NEVER ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE NEVER ) @@ -398,10 +921,102 @@ macro(find_host_program) find_program( ${ARGN} ) SET( WIN32 ) SET( APPLE ) - SET( UNIX 1) + SET( UNIX 1 ) set( CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY ) set( CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY ) endmacro() -MARK_AS_ADVANCED(FORCE_ARM NO_UNDEFINED) + +macro( ANDROID_GET_ABI_RAWNAME TOOLCHAIN_FLAG VAR ) + if( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI" ) + set( ${VAR} "armeabi" ) + elseif( "${TOOLCHAIN_FLAG}" STREQUAL "ARMEABI_V7A" ) + set( ${VAR} "armeabi-v7a" ) + elseif( "${TOOLCHAIN_FLAG}" STREQUAL "X86" ) + set( ${VAR} "x86" ) + else() + set( ${VAR} "unknown" ) + endif() +endmacro() + + +# export toolchain settings for the try_compile() command +if( NOT PROJECT_NAME STREQUAL "CMAKE_TRY_COMPILE" ) + set( __toolchain_config "") + foreach( __var ANDROID_ABI ANDROID_FORCE_ARM_BUILD ANDROID_NATIVE_API_LEVEL ANDROID_NO_UNDEFINED ANDROID_SO_UNDEFINED ANDROID_SET_OBSOLETE_VARIABLES LIBRARY_OUTPUT_PATH_ROOT ANDROID_USE_STLPORT ANDROID_FORBID_SYGWIN ANDROID_NDK ANDROID_STANDALONE_TOOLCHAIN ) + if( DEFINED ${__var} ) + set( __toolchain_config "${__toolchain_config}set( ${__var} \"${${__var}}\" )\n" ) + endif() + endforeach() + file( WRITE "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/android.toolchain.config.cmake" "${__toolchain_config}" ) + unset( __toolchain_config ) +endif() + + +# set some obsolete variables for backward compatibility +set( ANDROID_SET_OBSOLETE_VARIABLES ON CACHE BOOL "Define obsolete Andrid-specific cmake variables" ) +mark_as_advanced( ANDROID_SET_OBSOLETE_VARIABLES ) +if( ANDROID_SET_OBSOLETE_VARIABLES ) + set( ANDROID_API_LEVEL ${ANDROID_NATIVE_API_LEVEL} ) + set( ARM_TARGET "${ANDROID_ABI}" ) + set( ARMEABI_NDK_NAME "${ANDROID_NDK_ABI_NAME}" ) +endif() + +# Variables controlling behavior or set by cmake toolchain: +# ANDROID_ABI : "armeabi-v7a" (default), "armeabi", "armeabi-v7a with NEON", "armeabi-v7a with VFPV3", "armeabi-v6 with VFP", "x86" +# ANDROID_FORCE_ARM_BUILD : ON/OFF +# ANDROID_NATIVE_API_LEVEL : 3,4,5,8,9,14 (depends on NDK version) +# ANDROID_NO_UNDEFINED : ON/OFF +# ANDROID_SO_UNDEFINED : OFF/ON (default depends on NDK version) +# ANDROID_SET_OBSOLETE_VARIABLES : ON/OFF +# LIBRARY_OUTPUT_PATH_ROOT : +# ANDROID_USE_STLPORT : OFF/ON - EXPERIMENTAL!!! +# ANDROID_FORBID_SYGWIN : ON/OFF +# Can be set only at the first run: +# ANDROID_NDK +# ANDROID_STANDALONE_TOOLCHAIN +# Obsolete: +# ANDROID_API_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL +# ARM_TARGET : superseded by ANDROID_ABI +# ARM_TARGETS : superseded by ANDROID_ABI (can be set only) +# ANDROID_NDK_TOOLCHAIN_ROOT : superseded by ANDROID_STANDALONE_TOOLCHAIN (can be set only) +# ANDROID_LEVEL : superseded by ANDROID_NATIVE_API_LEVEL (completely removed) +# +# Primary read-only variables: +# ANDROID : always TRUE +# ARMEABI : TRUE for arm v6 and older devices +# ARMEABI_V6 : TRUE for arm v6 +# ARMEABI_V7A : TRUE for arm v7a +# NEON : TRUE if NEON unit is enabled +# VFPV3 : TRUE if VFP version 3 is enabled +# X86 : TRUE if configured for x86 +# BUILD_ANDROID : always TRUE +# BUILD_WITH_ANDROID_NDK : TRUE if NDK is used +# BUILD_WITH_STANDALONE_TOOLCHAIN : TRUE if standalone toolchain is used +# ANDROID_NDK_HOST_SYSTEM_NAME : "windows", "linux-x86" or "darwin-x86" depending on host platform +# ANDROID_NDK_ABI_NAME : "armeabi", "armeabi-v7a" or "x86" depending on ANDROID_ABI +# ANDROID_ARCH_NAME : "arm" or "x86" depending on ANDROID_ABI +# TOOL_OS_SUFFIX : "" or ".exe" depending on host platform +# ANDROID_SYSTEM_INCLUDE_DIRS +# ANDROID_SYSTEM_LIB_DIRS +# Obsolete: +# ARMEABI_NDK_NAME : superseded by ANDROID_NDK_ABI_NAME +# +# Secondary (less stable) read-only variables: +# ANDROID_COMPILER_VERSION : GCC version used +# ANDROID_CXX_FLAGS : C/C++ compiler flags required by Android platform +# ANDROID_SUPPORTED_ABIS : list of currently allowed values for ANDROID_ABI +# ANDROID_SYSROOT : path to the compiler sysroot +# ANDROID_TOOLCHAIN_NAME : "standalone", "arm-linux-androideabi-4.4.3" or "x86-4.4.3" or something similar. +# ANDROID_TOOLCHAIN_MACHINE_NAME : "arm-linux-androideabi", "arm-eabi" or "i686-android-linux" +# ANDROID_TOOLCHAIN_ROOT : path to the top level of toolchain (standalone or placed inside NDK) +# ANDROID_SUPPORTED_NATIVE_API_LEVELS : list of native API levels found inside NDK +# +# Defaults: +# ANDROID_DEFAULT_NDK_API_LEVEL +# ANDROID_DEFAULT_NDK_API_LEVEL_${ARCH} +# ANDROID_NDK_SEARCH_PATHS +# ANDROID_STANDALONE_TOOLCHAIN_SEARCH_PATH +# ANDROID_SUPPORTED_ABIS_${ARCH} +# ANDROID_SUPPORTED_NDK_VERSIONS -- 2.43.0