diff options
Diffstat (limited to 'tasks/toolchains/android.rake')
| -rw-r--r-- | tasks/toolchains/android.rake | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/tasks/toolchains/android.rake b/tasks/toolchains/android.rake new file mode 100644 index 000000000..63c384fd8 --- /dev/null +++ b/tasks/toolchains/android.rake @@ -0,0 +1,214 @@ +class MRuby::Toolchain::Android + DEFAULT_ARCH = 'armeabi' + DEFAULT_PLATFORM = 'android-14' + DEFAULT_TOOLCHAIN = :gcc + DEFAULT_NDK_HOMES = %w{ + /usr/local/opt/android-ndk + } + TOOLCHAINS = [:gcc, :clang] + ARCHITECTURES = %w{ + armeabi armeabi-v7a arm64-v8a + mips mips64 + x86 x86_64 + } + + class AndroidNDKHomeNotFound < StandardError + def message + <<-EOM +Couldn't find Android NDK Home. +Set ANDROID_NDK_HOME environment variable or set :ndk_home parameter + EOM + end + end + + attr_reader :params + + def initialize(params) + @params = params + end + + def home_path + @home_path ||= Pathname( + params[:ndk_home] || + ENV['ANDROID_NDK_HOME'] || + DEFAULT_NDK_HOMES.find{ |path| File.directory?(path) } || + raise(AndroidNDKHomeNotFound) + ) + end + + def arch + params.fetch(:arch){ DEFAULT_ARCH } + end + + def platform + params.fetch(:platform){ DEFAULT_PLATFORM } + end + + def toolchain + params.fetch(:toolchain){ DEFAULT_TOOLCHAIN } + end + + def toolchain_version + params.fetch(:toolchain_version) do + test = case toolchain + when :gcc + case arch + when /armeabi/ + 'arm-linux-androideabi-*' + when /arm64/ + 'aarch64-linux-android-*' + when /mips64/ + 'mips64el-linux-android-*' + when /mips/ + 'mipsel-linux-android-*' + when /x86_64/ + 'x86_64-*' + when /x86/ + 'x86-*' + end + when :clang + 'llvm-*' + end + + Dir[home_path.join('toolchains',test)].map{|t| t.match(/-(\d+\.\d+)$/); $1.to_f }.max + end + end + + def toolchain_path + prefix = case toolchain + when :clang then 'llvm-' + when :gcc + case arch + when /armeabi/ then 'arm-linux-androideabi-' + when /arm64/ then 'aarch64-linux-android-' + when /x86_64/ then 'x86_64-' + when /x86/ then 'x86-' + when /mips64/ then 'mips64el-linux-android-' + when /mips/ then 'mipsel-linux-android-' + end + end + home_path.join('toolchains', prefix + toolchain_version.to_s, 'prebuilt', host_platform) + end + + def sysroot + path = case arch + when /armeabi/ then 'arch-arm' + when /arm64/ then 'arch-arm64' + when /x86_64/ then 'arch-x86_64' + when /x86/ then 'arch-x86' + when /mips64/ then 'arch-mips64' + when /mips/ then 'arch-mips' + end + + home_path.join('platforms', platform, path).to_s + end + + def bin(command) + command = command.to_s + + if toolchain == :gcc + command = case arch + when /armeabi/ then 'arm-linux-androideabi-' + when /arm64/ then 'aarch64-linux-android-' + when /x86_64/ then 'x86_64-linux-android-' + when /x86/ then 'i686-linux-android-' + when /mips64/ then 'mips64el-linux-android-' + when /mips/ then 'mipsel-linux-android-' + end + command + end + + toolchain_path.join('bin',command).to_s + end + + def cc + case toolchain + when :gcc then bin(:gcc) + when :clang then bin(:clang) + end + end + + def cflags + flags = [] + + case toolchain + when :gcc + flags += %W(-ffunction-sections -funwind-tables -no-canonical-prefixes) + flags += %W(-D__android__ -mandroid --sysroot="#{sysroot}") + case arch + when /arm64/ + flags += %W(-fpic -fstack-protector-strong) + when 'armeabi-v7a-hard' + flags += %W(-fpic -fstack-protector-strong -march=armv7-a -mhard-float -D_NDK_MATH_NO_SOFTFP=1 -mfpu=vfpv3-d16) + when 'armeabi-v7a' + flags += %W(-fpic -fstack-protector-strong -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16) + when /arm/ + flags += %W(-fpic -fstack-protector-strong -march=armv5te -mtune=xscale -msoft-float) + when /mips/ + 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) + when /x86/ + flags += %W(-fstack-protector-strong) + end + when :clang + end + + flags + end + + def ld + cc + end + + def ldflags + flags = [] + case toolchain + when :gcc + flags += %W(-no-canonical-prefixes) + flags += %W(-D__android__ -mandroid --sysroot="#{sysroot}") + case arch + when 'armeabi-v7a-hard' + flags += %W(-march=armv7-a -Wl,--fix-cortex-a8 -Wl,--no-warn-mismatch -lm_hard) + when 'armeabi-v7a' + flags += %W(-march=armv7-a -Wl,--fix-cortex-a8) + end + end + end + + def ar + case toolchain + when :gcc then bin(:ar) + when :clang then bin('llvm-ar') + end + end + + def host_platform + case RUBY_PLATFORM + when /cygwin|mswin|mingw|bccwin|wince|emx/i + 'windows' + when /x86_64-darwin/i + 'darwin-x86_64' + when /darwin/i + 'darwin-x86' + when /x86_64-linux/i + 'linux-x86_64' + when /linux/i + 'linux-x86' + else + raise NotImplementedError, "Unknown host platform (#{RUBY_PLATFORM})" + end + end +end + +MRuby::Toolchain.new(:android) do |conf, params| + ndk = MRuby::Toolchain::Android.new(params) + + toolchain ndk.toolchain + + [conf.cc, conf.cxx, conf.objc, conf.asm].each do |cc| + cc.command = ndk.cc + cc.flags = ndk.cflags + end + conf.linker.command = ndk.ld + conf.linker.flags = ndk.ldflags + conf.archiver.command = ndk.ar +end + |