libsuperderpy/cmake/android.toolchain
Sebastian Krzyszkowiak 4d749b3ad1 make screen rotation working on Android
libsuperderpy now requires Allegro 5.2.2 for Android
2016-11-08 17:42:23 +01:00

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SET(CMAKE_SYSTEM_NAME Linux)
SET(CMAKE_SYSTEM_VERSION 1)
#set path for android toolchain -- look
set(ANDROID_ALLEGRO_ROOT "$ENV{ANDROID_ALLEGRO_ROOT}" CACHE PATH "Path to Allegro 5 (>=5.2.2) build directory for Android" )
message( STATUS "Selected Allegro dir: ${ANDROID_ALLEGRO_ROOT}" )
if(NOT EXISTS "${ANDROID_ALLEGRO_ROOT}")
message( FATAL_ERROR "Invalid ANDROID_ALLEGRO_ROOT! Point it to the build directory of Allegro 5 (>=5.2.2) for Android.")
endif()
set(ANDROID_NDK_TOOLCHAIN_ROOT "$ENV{ANDROID_NDK_TOOLCHAIN_ROOT}" CACHE PATH "Path to the Android NDK Standalone Toolchain" )
message( STATUS "Selected Android toolchain: ${ANDROID_NDK_TOOLCHAIN_ROOT}" )
if(NOT EXISTS ${ANDROID_NDK_TOOLCHAIN_ROOT})
set(ANDROID_NDK_TOOLCHAIN_ROOT "/opt/android-toolchain" CACHE PATH "Path to the Android NDK Standalone Toolchain" )
message( STATUS "Using default path for toolchain ${ANDROID_NDK_TOOLCHAIN_ROOT}")
message( STATUS "If you prefer to use a different location, please set the ANDROID_NDK_TOOLCHAIN_ROOT cmake variable.")
endif()
#set(ANDROID_NDK_TOOLCHAIN_ROOT ${ANDROID_NDK_TOOLCHAIN_ROOT} CACHE PATH
# "root of the android ndk standalone toolchain" FORCE)
if(NOT EXISTS ${ANDROID_NDK_TOOLCHAIN_ROOT})
message(FATAL_ERROR
"${ANDROID_NDK_TOOLCHAIN_ROOT} does not exist!
You should either set an environment variable:
export ANDROID_NDK_TOOLCHAIN_ROOT=~/my-toolchain
or put the toolchain in the default path:
sudo ln -s ~/android-toolchain /opt/android-toolchain
")
endif()
find_program(CMAKE_MAKE_PROGRAM make)
#setup build targets, mutually exclusive
set(PossibleArmTargets
"x86;x86_64;armeabi;armeabi-v7a;armeabi-v7a with NEON")
set(ARM_TARGETS "armeabi-v7a" CACHE STRING
"the arm targets for android, recommend armeabi-v7a
for floating point support and NEON.")
if(ARM_TARGETS STREQUAL "x86")
set(ANDROID_ARCH "i686-linux-android")
elseif(ARM_TARGETS STREQUAL "x86_64")
set(ANDROID_ARCH "x86_64-linux-android")
else()
set(ANDROID_ARCH "arm-linux-androideabi")
endif()
if(WIN32)
set(CMAKE_EXECUTABLE_SUFFIX ".exe")
endif()
# specify the cross compiler
SET(CMAKE_C_COMPILER
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-gcc${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "gcc" FORCE)
SET(CMAKE_CXX_COMPILER
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-g++${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "gcc" FORCE)
#there may be a way to make cmake deduce these TODO deduce the rest of the tools
set(CMAKE_AR
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-ar${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "archive" FORCE)
set(CMAKE_LINKER
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-ld${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "linker" FORCE)
set(CMAKE_NM
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-nm${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "nm" FORCE)
set(CMAKE_OBJCOPY
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-objcopy${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "objcopy" FORCE)
set(CMAKE_OBJDUMP
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-objdump${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "objdump" FORCE)
set(CMAKE_STRIP
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-strip${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "strip" FORCE)
set(CMAKE_RANLIB
${ANDROID_NDK_TOOLCHAIN_ROOT}/bin/${ANDROID_ARCH}-ranlib${CMAKE_EXECUTABLE_SUFFIX} CACHE PATH "ranlib" FORCE)
set_property(CACHE ARM_TARGETS PROPERTY STRINGS ${PossibleArmTargets} )
set(LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_BINARY_DIR}/android CACHE PATH
"root for library output, set this to change where
android libs are installed to")
#set these flags for client use
if(ARM_TARGETS STREQUAL "armeabi")
set(ARMEABI true)
set(LIBRARY_OUTPUT_PATH ${LIBRARY_OUTPUT_PATH_ROOT}/libs/armeabi
CACHE PATH "path for android libs" FORCE)
set(CMAKE_INSTALL_PREFIX ${ANDROID_NDK_TOOLCHAIN_ROOT}/user/armeabi
CACHE STRING "path for installing" FORCE)
set(NEON false)
elseif(ARM_TARGETS STREQUAL "x86")
set( LIBRARY_OUTPUT_PATH ${LIBRARY_OUTPUT_PATH_ROOT}/libs/x86
CACHE PATH "path for android libs" FORCE)
set( CMAKE_INSTALL_PREFIX ${ANDROID_NDK_TOOLCHAIN_ROOT}/user/x86
CACHE STRING "path for installing" FORCE)
elseif(ARM_TARGETS STREQUAL "x86_64")
set( LIBRARY_OUTPUT_PATH ${LIBRARY_OUTPUT_PATH_ROOT}/libs/x86_64
CACHE PATH "path for android libs" FORCE)
set( CMAKE_INSTALL_PREFIX ${ANDROID_NDK_TOOLCHAIN_ROOT}/user/x86_64
CACHE STRING "path for installing" FORCE)
else()
if(ARM_TARGETS STREQUAL "armeabi-v7a with NEON")
set(NEON true)
endif()
set(ARMEABI_V7A true)
set( LIBRARY_OUTPUT_PATH ${LIBRARY_OUTPUT_PATH_ROOT}/libs/armeabi-v7a
CACHE PATH "path for android libs" FORCE)
set( CMAKE_INSTALL_PREFIX ${ANDROID_NDK_TOOLCHAIN_ROOT}/user/armeabi-v7a
CACHE STRING "path for installing" FORCE)
endif()
# where is the target environment
SET(CMAKE_FIND_ROOT_PATH ${ANDROID_NDK_TOOLCHAIN_ROOT}/bin ${ANDROID_NDK_TOOLCHAIN_ROOT}/arm-linux-androideabi ${ANDROID_NDK_TOOLCHAIN_ROOT}/sysroot ${CMAKE_INSTALL_PREFIX} ${CMAKE_INSTALL_PREFIX}/share)
SET(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM ONLY)
# only search for libraries and includes in the ndk toolchain
SET(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
SET(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
if(ARM_TARGETS STREQUAL "x86")
SET(CMAKE_CXX_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -Wno-psabi")
SET(CMAKE_C_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -Wno-psabi")
elseif(ARM_TARGETS STREQUAL "x86_64")
SET(CMAKE_CXX_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -Wno-psabi")
SET(CMAKE_C_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -Wno-psabi")
else()
#Setup arm specific stuff
#It is recommended to use the -mthumb compiler flag to force the generation
#of 16-bit Thumb-1 instructions (the default being 32-bit ARM ones).
SET(CMAKE_CXX_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -mthumb -Wno-psabi")
SET(CMAKE_C_FLAGS "-DGL_GLEXT_PROTOTYPES -fPIC -DANDROID -mthumb -Wno-psabi")
#these are required flags for android armv7-a
if(WANT_ANDROID_LEGACY)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv6")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv6")
SET(ALLEGRO_CFG_ANDROID_LEGACY 1)
else(WANT_ANDROID_LEGACY)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=armv7-a -mfloat-abi=softfp")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=armv7-a -mfloat-abi=softfp")
if(NEON)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mfpu=neon")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mfpu=neon")
endif()
endif(WANT_ANDROID_LEGACY)
#-Wl,-L${LIBCPP_LINK_DIR},-lstdc++,-lsupc++
#-L${LIBCPP_LINK_DIR} -lstdc++ -lsupc++
#Also, this is *required* to use the following linker flags that routes around
#a CPU bug in some Cortex-A8 implementations:
SET(CMAKE_SHARED_LINKER_FLAGS "-Wl,--fix-cortex-a8 -L${CMAKE_INSTALL_PREFIX}/lib" CACHE STRING "linker flags" FORCE)
SET(CMAKE_MODULE_LINKER_FLAGS "-Wl,--fix-cortex-a8 -L${CMAKE_INSTALL_PREFIX}/lib" CACHE STRING "linker flags" FORCE)
endif()
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "c++ flags")
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "c flags")
find_program(ANDROID_TOOL android NAMES android android.bat CMAKE_FIND_ROOT_PATH_BOTH)
find_program(NDK_BUILD ndk-build CMAKE_FIND_ROOT_PATH_BOTH)
find_program(ANT ant CMAKE_FIND_ROOT_PATH_BOTH)
set(ANT_COMMAND "${ANT}" -noinput -nouserlib -noclasspath -quiet)
if(NOT ANDROID_TOOL)
message(FATAL_ERROR "android tool not found")
endif()
if(NOT NDK_BUILD)
message(FATAL_ERROR "ndk-build not found")
endif()
if(NOT ANT)
message(FATAL_ERROR "ant not found")
endif()
#set these global flags for cmake client scripts to change behavior
set(ANDROID True)
set(BUILD_ANDROID True)