1 # Platform defines. 2 set(CMAKE_SYSTEM_NAME Linux) 3 4 set_property(GLOBAL PROPERTY TARGET_SUPPORTS_SHARED_LIBS TRUE) 5 6 set(CMAKE_CROSSCOMPILING 1) 7 8 # dE defines 9 set(DE_OS "DE_OS_ANDROID") 10 set(DE_COMPILER "DE_COMPILER_GCC") 11 if (NOT DEFINED DE_ANDROID_API) 12 set(DE_ANDROID_API 5) 13 endif () 14 15 # NDK installation path 16 set(ANDROID_NDK_PATH "/opt/android-ndk-r8" CACHE STRING "Android NDK installation path") 17 set(ANDROID_NDK_HOST_OS "linux-x86" CACHE STRING "Android ndk host os") 18 set(ANDROID_ABI "armeabi-v7a" CACHE STRING "Android ABI") 19 set(ANDROID_NDK_TARGET "android-${DE_ANDROID_API}") 20 21 # Select cpu 22 if (ANDROID_ABI STREQUAL "x86") 23 set(DE_CPU "DE_CPU_X86") 24 set(CMAKE_SYSTEM_PROCESSOR i686-android-linux) 25 else () 26 set(DE_CPU "DE_CPU_ARM") 27 set(CMAKE_SYSTEM_PROCESSOR arm-linux-androideabi) 28 endif () 29 30 # Cross-compiler, search paths and sysroot 31 if (ANDROID_ABI STREQUAL "x86") 32 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/x86-4.4.3/prebuilt/${ANDROID_NDK_HOST_OS}/") 33 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/i686-android-linux-") 34 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86") 35 36 set(CMAKE_FIND_ROOT_PATH 37 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_ABI}" 38 "${ANDROID_CC_PATH}i686-android-linux" 39 "${ANDROID_CC_PATH}lib/gcc/i686-android-linux/4.4.3" 40 ${ANDROID_SYSROOT} 41 ) 42 43 else () 44 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.4.3/prebuilt/${ANDROID_NDK_HOST_OS}/") 45 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/arm-linux-androideabi-") 46 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm") 47 48 set(CMAKE_FIND_ROOT_PATH 49 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_ABI}" 50 "${ANDROID_CC_PATH}arm-linux-androideabi" 51 ${ANDROID_SYSROOT} 52 ) 53 54 endif () 55 56 # crtbegin_so.o & crtend_so.o \todo [pyry] Is there some special CMake variable for these? 57 if (DE_ANDROID_API GREATER 8) 58 set(CRTBEGIN_SO "${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o") 59 set(CRTEND_SO "${ANDROID_SYSROOT}/usr/lib/crtend_so.o") 60 endif () 61 62 # libgcc 63 if (ANDROID_ABI STREQUAL "armeabi-v7a") 64 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.4.3/armv7-a/libgcc.a") 65 elseif (ANDROID_ABI STREQUAL "armeabi") 66 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a") 67 elseif (ANDROID_ABI STREQUAL "x86") 68 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/i686-android-linux/4.4.3/libgcc.a") 69 else () 70 message(FATAL_ERROR "Don't know where libgcc.a is") 71 endif () 72 73 include(CMakeForceCompiler) 74 75 if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR 76 ANDROID_NDK_HOST_OS STREQUAL "darwin-x86") 77 cmake_force_c_compiler("${CROSS_COMPILE}gcc" GNU) 78 cmake_force_cxx_compiler("${CROSS_COMPILE}g++" GNU) 79 elseif (ANDROID_NDK_HOST_OS STREQUAL "windows") 80 cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe" GNU) 81 cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe" GNU) 82 else () 83 message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS") 84 endif () 85 86 set(CMAKE_SHARED_LIBRARY_C_FLAGS "") 87 set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "") 88 89 set(CMAKE_C_CREATE_SHARED_LIBRARY 90 "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>") 91 set(CMAKE_CXX_CREATE_SHARED_LIBRARY 92 "<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> ${LIBGCC} ${CRTEND_SO}") 93 94 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 95 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 96 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 97 98 set(COMMON_C_FLAGS "--sysroot=${ANDROID_SYSROOT} -fpic -Os -DANDROID -D__ANDROID__ -D__STDC_INT64__") 99 set(COMMON_LINKER_FLAGS "-nostdlib -Wl,-shared,-Bsymbolic -Wl,--no-undefined") 100 set(ARM_C_FLAGS "-mfloat-abi=softfp -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ") 101 set(ARM_LINKER_FLAGS "-Wl,--fix-cortex-a8") 102 103 if (ANDROID_ABI STREQUAL "armeabi-v7a") 104 # For armeabi-v7a 105 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} ${ARM_C_FLAGS} -march=armv7-a -mfpu=vfpv3-d16") 106 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS} ${ARM_LINKER_FLAGS} -march=armv7-a") 107 108 elseif (ANDROID_ABI STREQUAL "armeabi") 109 # For armeabi (ARMv5TE) 110 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} ${ARM_C_FLAGS} -march=armv5te") 111 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS} ${ARM_LINKER_FLAGS} -march=armv5te") 112 113 elseif (ANDROID_ABI STREQUAL "x86") 114 set(TARGET_C_FLAGS "${COMMON_C_FLAGS} -march=i686 -msse3 -mstackrealign -mfpmath=sse") 115 set(TARGET_LINKER_FLAGS "${COMMON_LINKER_FLAGS}") 116 117 else () 118 message(FATAL_ERROR "Unknown Android ABI \"${ANDROID_ABI}\"") 119 endif () 120 121 # \note Hacky workaround for flags... 122 set(CMAKE_C_FLAGS "${TARGET_C_FLAGS}" CACHE STRING "" FORCE) 123 set(CMAKE_CXX_FLAGS "${TARGET_C_FLAGS} -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/libs/${ANDROID_ABI}/include" CACHE STRING "" FORCE) 124 set(CMAKE_SHARED_LINKER_FLAGS "${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE) 125
