1# Platform defines. 2set(CMAKE_SYSTEM_NAME Linux) 3 4set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE) 5 6set(CMAKE_CROSSCOMPILING 1) 7 8# dE defines 9set(DE_OS "DE_OS_ANDROID") 10set(DE_COMPILER "DE_COMPILER_CLANG") 11if (NOT DEFINED DE_ANDROID_API) 12 set(DE_ANDROID_API 5) 13endif () 14 15# NDK installation path 16set(ANDROID_NDK_PATH "/opt/android-ndk-r8d" CACHE STRING "Android NDK installation path") 17set(ANDROID_NDK_HOST_OS "linux-x86" CACHE STRING "Android ndk host OS") 18set(ANDROID_ABI "armeabi-v7a" CACHE STRING "Android ABI") 19set(ANDROID_NDK_TARGET "android-${DE_ANDROID_API}") 20 21# Select cpu 22if (ANDROID_ABI STREQUAL "x86") 23 set(DE_CPU "DE_CPU_X86") 24 set(CMAKE_SYSTEM_PROCESSOR i686-android-linux) 25else () 26 set(DE_CPU "DE_CPU_ARM") 27 set(CMAKE_SYSTEM_PROCESSOR arm-linux-androideabi) 28endif () 29 30# Path to LLVM 31set(LLVM_PATH "${ANDROID_NDK_PATH}/toolchains/llvm-3.1/prebuilt/${ANDROID_NDK_HOST_OS}/") 32 33# Cross-compiler, search paths and sysroot 34if (ANDROID_ABI STREQUAL "x86") 35 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/x86-4.6/prebuilt/${ANDROID_NDK_HOST_OS}/") 36 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/i686-linux-android-") 37 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86") 38 39 set(CMAKE_FIND_ROOT_PATH 40 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.6/libs/${ANDROID_ABI}" 41 "${ANDROID_CC_PATH}i686-linux-android" 42 "${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.6" 43 ${ANDROID_SYSROOT} 44 ) 45 46else () 47 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.6/prebuilt/${ANDROID_NDK_HOST_OS}/") 48 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/arm-linux-androideabi-") 49 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm") 50 51 set(CMAKE_FIND_ROOT_PATH 52 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.6/libs/${ANDROID_ABI}" 53 "${ANDROID_CC_PATH}arm-linux-androideabi" 54 ${ANDROID_SYSROOT} 55 ) 56 57endif () 58 59# crtbegin_so.o & crtend_so.o \todo [pyry] Is there some special CMake variable for these? 60if (DE_ANDROID_API GREATER 8) 61 set(CRTBEGIN_SO "${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o") 62 set(CRTEND_SO "${ANDROID_SYSROOT}/usr/lib/crtend_so.o") 63endif () 64 65# libgcc 66if (ANDROID_ABI STREQUAL "armeabi-v7a") 67 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.6/armv7-a/libgcc.a") 68elseif (ANDROID_ABI STREQUAL "armeabi") 69 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.6/libgcc.a") 70elseif (ANDROID_ABI STREQUAL "x86") 71 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.6/libgcc.a") 72else () 73 message(FATAL_ERROR "Don't know where libgcc.a is") 74endif () 75 76# C++ library 77set(LIBCPP "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.6/libs/${ANDROID_ABI}/libgnustl_static.a") 78 79include(CMakeForceCompiler) 80 81# Compiler binaries 82if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR 83 ANDROID_NDK_HOST_OS STREQUAL "darwin-x86") 84 cmake_force_c_compiler("${LLVM_PATH}bin/clang" Clang) 85 cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++" Clang) 86 set(CMAKE_AR "${CROSS_COMPILE}ar" CACHE FILEPATH "Archiver") 87elseif (ANDROID_NDK_HOST_OS STREQUAL "windows") 88 cmake_force_c_compiler("${LLVM_PATH}bin/clang.exe" Clang) 89 cmake_force_cxx_compiler("${LLVM_PATH}bin/clang++.exe" Clang) 90 set(CMAKE_AR "${CROSS_COMPILE}ar.exe" CACHE FILEPATH "Archiver") 91else () 92 message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS") 93endif () 94 95set(CMAKE_SHARED_LIBRARY_C_FLAGS "") 96set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "") 97 98set(CMAKE_C_CREATE_SHARED_LIBRARY 99 "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>") 100set(CMAKE_CXX_CREATE_SHARED_LIBRARY 101 "<CMAKE_CXX_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> -o <TARGET> ${CRTBEGIN_SO} <OBJECTS> <LINK_LIBRARIES> ${LIBCPP} ${LIBGCC} ${CRTEND_SO}") 102 103set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 104set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 105set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 106 107set(COMMON_C_FLAGS "-gcc-toolchain ${ANDROID_CC_PATH} --sysroot=${ANDROID_SYSROOT} -fpic -no-canonical-prefixes -DANDROID -D__ANDROID__ -D__STDC_INT64__") 108set(COMMON_LINKER_FLAGS "-nostdlib -Wl,-shared,-Bsymbolic -Wl,--no-undefined") 109set(ARM_C_FLAGS "-mfloat-abi=softfp -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ") 110 111if (ANDROID_ABI STREQUAL "armeabi-v7a") 112 # For armeabi-v7a 113 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} ${ARM_C_FLAGS} -target armv7-none-linux-androideabi -march=armv7-a -mfpu=vfpv3-d16") 114 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS} -Wl,--fix-cortex-a8 -march=armv7-a") 115 116elseif (ANDROID_ABI STREQUAL "armeabi") 117 # For armeabi (ARMv5TE) 118 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} ${ARM_C_FLAGS} -target armv5te-none-linux-androideabi -march=armv5te") 119 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS} ${ARM_LINKER_FLAGS} -march=armv5te") 120 121elseif (ANDROID_ABI STREQUAL "x86") 122 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} -target i686-none-linux-android -march=i686 -msse3 -mstackrealign -mfpmath=sse") 123 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS}") 124 125else () 126 message(FATAL_ERROR "Unknown Android ABI \"${ANDROID_ABI}\"") 127endif () 128 129# \note Hacky workaround for flags... 130set(CMAKE_C_FLAGS "${TARGET_C_FLAGS}" CACHE STRING "" FORCE) 131set(CMAKE_CXX_FLAGS "${TARGET_C_FLAGS} -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.6/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.6/libs/${ANDROID_ABI}/include" CACHE STRING "" FORCE) 132set(CMAKE_SHARED_LINKER_FLAGS "${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE) 133