[270] | 1 | class MRuby::Toolchain::Android
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| 2 | DEFAULT_ARCH = 'armeabi'
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| 3 | DEFAULT_PLATFORM = 'android-14'
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| 4 | DEFAULT_TOOLCHAIN = :gcc
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| 5 | DEFAULT_NDK_HOMES = %w{
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| 6 | /usr/local/opt/android-ndk
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| 7 | }
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| 8 | TOOLCHAINS = [:gcc, :clang]
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| 9 | ARCHITECTURES = %w{
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| 10 | armeabi armeabi-v7a arm64-v8a
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| 11 | mips mips64
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| 12 | x86 x86_64
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| 13 | }
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| 14 |
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| 15 | class AndroidNDKHomeNotFound < StandardError
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| 16 | def message
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| 17 | <<-EOM
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| 18 | Couldn't find Android NDK Home.
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| 19 | Set ANDROID_NDK_HOME environment variable or set :ndk_home parameter
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| 20 | EOM
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| 21 | end
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| 22 | end
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| 23 |
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| 24 | attr_reader :params
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| 25 |
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| 26 | def initialize(params)
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| 27 | @params = params
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| 28 | end
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| 29 |
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| 30 | def home_path
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| 31 | @home_path ||= Pathname(
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| 32 | params[:ndk_home] ||
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| 33 | ENV['ANDROID_NDK_HOME'] ||
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| 34 | DEFAULT_NDK_HOMES.find{ |path| File.directory?(path) } ||
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| 35 | raise(AndroidNDKHomeNotFound)
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| 36 | )
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| 37 | end
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| 38 |
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| 39 | def arch
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| 40 | params.fetch(:arch){ DEFAULT_ARCH }
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| 41 | end
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| 42 |
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| 43 | def platform
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| 44 | params.fetch(:platform){ DEFAULT_PLATFORM }
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| 45 | end
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| 46 |
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| 47 | def toolchain
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| 48 | params.fetch(:toolchain){ DEFAULT_TOOLCHAIN }
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| 49 | end
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| 50 |
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| 51 | def toolchain_version
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| 52 | params.fetch(:toolchain_version) do
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| 53 | test = case toolchain
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| 54 | when :gcc
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| 55 | case arch
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| 56 | when /armeabi/
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| 57 | 'arm-linux-androideabi-*'
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| 58 | when /arm64/
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| 59 | 'aarch64-linux-android-*'
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| 60 | when /mips64/
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| 61 | 'mips64el-linux-android-*'
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| 62 | when /mips/
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| 63 | 'mipsel-linux-android-*'
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| 64 | when /x86_64/
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| 65 | 'x86_64-*'
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| 66 | when /x86/
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| 67 | 'x86-*'
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| 68 | end
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| 69 | when :clang
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| 70 | 'llvm-*'
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| 71 | end
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| 72 |
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| 73 | Dir[home_path.join('toolchains',test)].map{|t| t.match(/-(\d+\.\d+)$/); $1.to_f }.max
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| 74 | end
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| 75 | end
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| 76 |
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| 77 | def toolchain_path
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| 78 | prefix = case toolchain
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| 79 | when :clang then 'llvm-'
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| 80 | when :gcc
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| 81 | case arch
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| 82 | when /armeabi/ then 'arm-linux-androideabi-'
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| 83 | when /arm64/ then 'aarch64-linux-android-'
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| 84 | when /x86_64/ then 'x86_64-'
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| 85 | when /x86/ then 'x86-'
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| 86 | when /mips64/ then 'mips64el-linux-android-'
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| 87 | when /mips/ then 'mipsel-linux-android-'
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| 88 | end
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| 89 | end
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| 90 | home_path.join('toolchains', prefix + toolchain_version.to_s, 'prebuilt', host_platform)
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| 91 | end
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| 92 |
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| 93 | def sysroot
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| 94 | path = case arch
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| 95 | when /armeabi/ then 'arch-arm'
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| 96 | when /arm64/ then 'arch-arm64'
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| 97 | when /x86_64/ then 'arch-x86_64'
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| 98 | when /x86/ then 'arch-x86'
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| 99 | when /mips64/ then 'arch-mips64'
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| 100 | when /mips/ then 'arch-mips'
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| 101 | end
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| 102 |
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| 103 | home_path.join('platforms', platform, path).to_s
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| 104 | end
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| 105 |
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| 106 | def bin(command)
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| 107 | command = command.to_s
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| 108 |
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| 109 | if toolchain == :gcc
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| 110 | command = case arch
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| 111 | when /armeabi/ then 'arm-linux-androideabi-'
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| 112 | when /arm64/ then 'aarch64-linux-android-'
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| 113 | when /x86_64/ then 'x86_64-linux-android-'
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| 114 | when /x86/ then 'i686-linux-android-'
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| 115 | when /mips64/ then 'mips64el-linux-android-'
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| 116 | when /mips/ then 'mipsel-linux-android-'
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| 117 | end + command
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| 118 | end
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| 119 |
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| 120 | toolchain_path.join('bin',command).to_s
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| 121 | end
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| 122 |
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| 123 | def cc
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| 124 | case toolchain
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| 125 | when :gcc then bin(:gcc)
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| 126 | when :clang then bin(:clang)
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| 127 | end
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| 128 | end
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| 129 |
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| 130 | def cflags
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| 131 | flags = []
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| 132 |
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| 133 | case toolchain
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| 134 | when :gcc
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| 135 | flags += %W(-ffunction-sections -funwind-tables -no-canonical-prefixes)
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| 136 | flags += %W(-D__android__ -mandroid --sysroot="#{sysroot}")
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| 137 | case arch
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| 138 | when /arm64/
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| 139 | flags += %W(-fpic -fstack-protector-strong)
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| 140 | when 'armeabi-v7a-hard'
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| 141 | flags += %W(-fpic -fstack-protector-strong -march=armv7-a -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -mfpu=vfpv3-d16)
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| 142 | when 'armeabi-v7a'
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| 143 | flags += %W(-fpic -fstack-protector-strong -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16)
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| 144 | when /arm/
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| 145 | flags += %W(-fpic -fstack-protector-strong -march=armv5te -mtune=xscale -msoft-float)
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| 146 | when /mips/
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| 147 | flags += %W(-fpic -fno-strict-aliasing -finline-functions -fmessage-length=0 -fno-inline-functions-called-once -fgcse-after-reload -frerun-cse-after-loop -frename-registers)
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| 148 | when /x86/
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| 149 | flags += %W(-fstack-protector-strong)
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| 150 | end
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| 151 | when :clang
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| 152 | end
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| 153 |
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| 154 | flags
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| 155 | end
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| 156 |
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| 157 | def ld
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| 158 | cc
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| 159 | end
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| 160 |
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| 161 | def ldflags
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| 162 | flags = []
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| 163 | case toolchain
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| 164 | when :gcc
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| 165 | flags += %W(-no-canonical-prefixes)
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| 166 | flags += %W(-D__android__ -mandroid --sysroot="#{sysroot}")
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| 167 | case arch
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| 168 | when 'armeabi-v7a-hard'
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| 169 | flags += %W(-march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-warn-mismatch -lm_hard)
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| 170 | when 'armeabi-v7a'
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| 171 | flags += %W(-march=armv7-a -Wl,--fix-cortex-a8)
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| 172 | end
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| 173 | end
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| 174 |
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| 175 | flags
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| 176 | end
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| 177 |
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| 178 | def ar
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| 179 | case toolchain
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| 180 | when :gcc then bin(:ar)
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| 181 | when :clang then bin('llvm-ar')
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| 182 | end
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| 183 | end
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| 184 |
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| 185 | def host_platform
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| 186 | case RUBY_PLATFORM
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| 187 | when /cygwin|mswin|mingw|bccwin|wince|emx/i
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| 188 | 'windows'
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| 189 | when /x86_64-darwin/i
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| 190 | 'darwin-x86_64'
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| 191 | when /darwin/i
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| 192 | 'darwin-x86'
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| 193 | when /x86_64-linux/i
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| 194 | 'linux-x86_64'
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| 195 | when /linux/i
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| 196 | 'linux-x86'
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| 197 | else
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| 198 | raise NotImplementedError, "Unknown host platform (#{RUBY_PLATFORM})"
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| 199 | end
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| 200 | end
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| 201 | end
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| 202 |
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| 203 | MRuby::Toolchain.new(:android) do |conf, params|
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| 204 | ndk = MRuby::Toolchain::Android.new(params)
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| 205 |
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| 206 | toolchain ndk.toolchain
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| 207 |
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| 208 | [conf.cc, conf.cxx, conf.objc, conf.asm].each do |cc|
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| 209 | cc.command = ndk.cc
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| 210 | cc.flags = ndk.cflags
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| 211 | end
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| 212 | conf.linker.command = ndk.ld
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| 213 | conf.linker.flags = ndk.ldflags
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| 214 | conf.archiver.command = ndk.ar
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| 215 | end
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| 216 |
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