1NDK_ROOT := $(shell dirname $(CC))/../../../../.. 2 3ifeq "$(findstring 64, $(ARCH))" "64" 4 # lowest 64-bit API level 5 API_LEVEL := 21 6else ifeq "$(ARCH)" "i386" 7 # clone(2) declaration is present only since this api level 8 API_LEVEL := 17 9else 10 # lowest supported 32-bit API level 11 API_LEVEL := 16 12endif 13 14ifeq "$(ARCH)" "arm" 15 SYSROOT_ARCH := arm 16 STL_ARCH := armeabi-v7a 17 TRIPLE := armv7-none-linux-androideabi 18 ARCH_CFLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm 19else ifeq "$(ARCH)" "aarch64" 20 SYSROOT_ARCH := arm64 21 STL_ARCH := arm64-v8a 22 TRIPLE := aarch64-none-linux-android 23else ifeq "$(ARCH)" "i386" 24 SYSROOT_ARCH := x86 25 STL_ARCH := x86 26 TRIPLE := i686-none-linux-android 27else ifeq "$(ARCH)" "mips64r6" 28 SYSROOT_ARCH := mips64 29 STL_ARCH := mips64 30 TRIPLE := mips64el-none-linux-android 31else ifeq "$(ARCH)" "mips32" 32 SYSROOT_ARCH := mips 33 STL_ARCH := mips 34 TRIPLE := mipsel-none-linux-android 35else 36 SYSROOT_ARCH := $(ARCH) 37 STL_ARCH := $(ARCH) 38 TRIPLE := $(ARCH)-none-linux-android 39endif 40 41ifeq "$(findstring 86,$(ARCH))" "86" 42 TOOLCHAIN_DIR := $(STL_ARCH)-4.9 43else ifeq "$(ARCH)" "arm" 44 TOOLCHAIN_DIR := arm-linux-androideabi-4.9 45else 46 TOOLCHAIN_DIR := $(subst -none,,$(TRIPLE))-4.9 47endif 48 49ifeq "$(ARCH)" "arm" 50 TOOL_PREFIX := arm-linux-androideabi 51else 52 TOOL_PREFIX := $(subst -none,,$(TRIPLE)) 53endif 54 55ifeq "$(HOST_OS)" "Linux" 56 HOST_TAG := linux-x86_64 57else ifeq "$(HOST_OS)" "Darwin" 58 HOST_TAG := darwin-x86_64 59else 60 HOST_TAG := windows-x86_64 61endif 62 63GCC_TOOLCHAIN = $(NDK_ROOT)/toolchains/$(TOOLCHAIN_DIR)/prebuilt/$(HOST_TAG) 64 65OBJCOPY ?= $(GCC_TOOLCHAIN)/bin/$(TOOL_PREFIX)-objcopy 66ARCHIVER ?= $(GCC_TOOLCHAIN)/bin/$(TOOL_PREFIX)-ar 67 68ifeq "$(findstring clang,$(CC))" "clang" 69 ARCH_CFLAGS += -target $(TRIPLE) -gcc-toolchain $(GCC_TOOLCHAIN) 70 ARCH_LDFLAGS += -target $(TRIPLE) -gcc-toolchain $(GCC_TOOLCHAIN) 71endif 72 73ARCH_CFLAGS += --sysroot=$(NDK_ROOT)/sysroot \ 74 -isystem $(NDK_ROOT)/sysroot/usr/include/$(TOOL_PREFIX) \ 75 -D__ANDROID_API__=$(API_LEVEL) \ 76 -isystem $(NDK_ROOT)/platforms/android-$(API_LEVEL)/arch-$(SYSROOT_ARCH)/usr/include 77 78ARCH_LDFLAGS += --sysroot=$(NDK_ROOT)/platforms/android-$(API_LEVEL)/arch-$(SYSROOT_ARCH) -lm 79 80ARCH_CXXFLAGS += \ 81 -isystem $(NDK_ROOT)/sources/cxx-stl/llvm-libc++/include \ 82 -isystem $(NDK_ROOT)/sources/android/support/include \ 83 -isystem $(NDK_ROOT)/sources/cxx-stl/llvm-libc++abi/include 84 85ARCH_LDFLAGS += \ 86 -L$(NDK_ROOT)/sources/cxx-stl/llvm-libc++/libs/$(STL_ARCH) \ 87 $(NDK_ROOT)/sources/cxx-stl/llvm-libc++/libs/$(STL_ARCH)/libc++_static.a \ 88 -lc++abi \ 89 -nostdlib++ 90