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 # NDK installation path 9 if (NOT DEFINED ANDROID_NDK_PATH) 10 message(FATAL_ERROR "Please provide ANDROID_NDK_PATH") 11 endif () 12 13 # Host os (for toolchain binaries) 14 if (NOT DEFINED ANDROID_NDK_HOST_OS) 15 message(STATUS "Warning: ANDROID_NDK_HOST_OS is not set") 16 if (WIN32) 17 set(ANDROID_NDK_HOST_OS "windows") 18 elseif (UNIX) 19 set(ANDROID_NDK_HOST_OS "linux-86") 20 endif () 21 endif () 22 23 # Compile target 24 set(ANDROID_ABI "armeabi-v7a" CACHE STRING "Android ABI") 25 set(ANDROID_NDK_TARGET "android-${DE_ANDROID_API}") 26 27 # dE defines 28 set(DE_OS "DE_OS_ANDROID") 29 set(DE_COMPILER "DE_COMPILER_GCC") 30 if (NOT DEFINED DE_ANDROID_API) 31 set(DE_ANDROID_API 5) 32 endif () 33 34 # Select cpu 35 if (ANDROID_ABI STREQUAL "x86") 36 set(DE_CPU "DE_CPU_X86") 37 set(CMAKE_SYSTEM_PROCESSOR i686-android-linux) 38 else () 39 set(DE_CPU "DE_CPU_ARM") 40 set(CMAKE_SYSTEM_PROCESSOR arm-linux-androideabi) 41 endif () 42 43 # Cross-compiler, search paths and sysroot 44 if (ANDROID_ABI STREQUAL "x86") 45 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/x86-4.7/prebuilt/${ANDROID_NDK_HOST_OS}/") 46 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/i686-linux-android-") 47 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-x86") 48 49 set(CMAKE_FIND_ROOT_PATH 50 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.7/libs/${ANDROID_ABI}" 51 "${ANDROID_CC_PATH}i686-linux-android" 52 "${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.7" 53 ${ANDROID_SYSROOT} 54 ) 55 56 else () 57 set(ANDROID_CC_PATH "${ANDROID_NDK_PATH}/toolchains/arm-linux-androideabi-4.7/prebuilt/${ANDROID_NDK_HOST_OS}/") 58 set(CROSS_COMPILE "${ANDROID_CC_PATH}bin/arm-linux-androideabi-") 59 set(ANDROID_SYSROOT "${ANDROID_NDK_PATH}/platforms/${ANDROID_NDK_TARGET}/arch-arm") 60 61 set(CMAKE_FIND_ROOT_PATH 62 "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.7/libs/${ANDROID_ABI}" 63 "${ANDROID_CC_PATH}arm-linux-androideabi" 64 ${ANDROID_SYSROOT} 65 ) 66 67 endif () 68 69 # crtbegin_so.o & crtend_so.o \todo [pyry] Is there some special CMake variable for these? 70 if (DE_ANDROID_API GREATER 8) 71 set(CRTBEGIN_SO "${ANDROID_SYSROOT}/usr/lib/crtbegin_so.o") 72 set(CRTEND_SO "${ANDROID_SYSROOT}/usr/lib/crtend_so.o") 73 endif () 74 75 # libgcc 76 if (ANDROID_ABI STREQUAL "armeabi-v7a") 77 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.7/armv7-a/libgcc.a") 78 elseif (ANDROID_ABI STREQUAL "armeabi") 79 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/arm-linux-androideabi/4.7/libgcc.a") 80 elseif (ANDROID_ABI STREQUAL "x86") 81 set(LIBGCC "${ANDROID_CC_PATH}lib/gcc/i686-linux-android/4.7/libgcc.a") 82 else () 83 message(FATAL_ERROR "Don't know where libgcc.a is") 84 endif () 85 86 # C++ library 87 set(LIBCPP "${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.7/libs/${ANDROID_ABI}/libgnustl_static.a") 88 89 include(CMakeForceCompiler) 90 91 if (ANDROID_NDK_HOST_OS STREQUAL "linux-x86" OR 92 ANDROID_NDK_HOST_OS STREQUAL "darwin-x86") 93 cmake_force_c_compiler("${CROSS_COMPILE}gcc" GNU) 94 cmake_force_cxx_compiler("${CROSS_COMPILE}g++" GNU) 95 elseif (ANDROID_NDK_HOST_OS STREQUAL "windows") 96 cmake_force_c_compiler("${CROSS_COMPILE}gcc.exe" GNU) 97 cmake_force_cxx_compiler("${CROSS_COMPILE}g++.exe" GNU) 98 else () 99 message(FATAL_ERROR "Unknown ANDROID_NDK_HOST_OS") 100 endif () 101 102 set(CMAKE_SHARED_LIBRARY_C_FLAGS "") 103 set(CMAKE_SHARED_LIBRARY_CXX_FLAGS "") 104 105 set(CMAKE_C_CREATE_SHARED_LIBRARY "<CMAKE_C_COMPILER> <LANGUAGE_COMPILE_FLAGS> <CMAKE_SHARED_LIBRARY_C_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_C_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>") 106 set(CMAKE_CXX_CREATE_SHARED_LIBRARY "<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}") 107 set(CMAKE_CXX_LINK_EXECUTABLE "<CMAKE_CXX_COMPILER> <FLAGS> <CMAKE_CXX_LINK_FLAGS> <LINK_FLAGS> -o <TARGET> <OBJECTS> <LINK_LIBRARIES> ${LIBCPP} ${LIBGCC}") 108 109 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER) 110 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY) 111 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY) 112 113 set(COMMON_C_FLAGS "--sysroot=${ANDROID_SYSROOT} -fpic -DANDROID -D__ANDROID__ -D__STDC_INT64__") 114 set(COMMON_LINKER_FLAGS "") 115 set(ARM_C_FLAGS "-mfloat-abi=softfp -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ ") 116 set(ARM_LINKER_FLAGS "-Wl,--fix-cortex-a8") 117 118 if (ANDROID_ABI STREQUAL "armeabi-v7a") 119 # For armeabi-v7a 120 set(TARGET_C_FLAGS "-march=armv7-a -mfpu=vfpv3-d16") 121 set(TARGET_LINKER_FLAGS "${ARM_LINKER_FLAGS} -march=armv7-a") 122 123 elseif (ANDROID_ABI STREQUAL "armeabi") 124 # For armeabi (ARMv5TE) 125 set(TARGET_C_FLAGS "${ARM_C_FLAGS} -march=armv5te") 126 set(TARGET_LINKER_FLAGS "${ARM_LINKER_FLAGS} -march=armv5te") 127 128 elseif (ANDROID_ABI STREQUAL "x86") 129 set(TARGET_C_FLAGS "-march=i686 -msse3 -mstackrealign -mfpmath=sse") 130 set(TARGET_LINKER_FLAGS "") 131 132 else () 133 message(FATAL_ERROR "Unknown Android ABI \"${ANDROID_ABI}\"") 134 endif () 135 136 # \note Without CACHE STRING FORCE cmake ignores these. 137 set(CMAKE_C_FLAGS "${COMMON_C_FLAGS} ${TARGET_C_FLAGS}" CACHE STRING "" FORCE) 138 set(CMAKE_CXX_FLAGS "${COMMON_C_FLAGS} ${TARGET_C_FLAGS} -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.7/include -I${ANDROID_NDK_PATH}/sources/cxx-stl/gnu-libstdc++/4.7/libs/${ANDROID_ABI}/include" CACHE STRING "" FORCE) 139 set(CMAKE_SHARED_LINKER_FLAGS "-nostdlib -Wl,-shared,-Bsymbolic -Wl,--no-undefined ${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE) 140 set(CMAKE_EXE_LINKER_FLAGS "${COMMON_LINKER_FLAGS} ${TARGET_LINKER_FLAGS}" CACHE STRING "" FORCE) 141
