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|
class MRuby::Toolchain::Android
DEFAULT_ARCH = 'armeabi' # TODO : Revise if arch should have a default
DEFAULT_TOOLCHAIN = :clang
DEFAULT_NDK_HOMES = %w{
/usr/local/opt/android-sdk/ndk-bundle
/usr/local/opt/android-ndk
%LOCALAPPDATA%/Android/android-sdk/ndk-bundle
%LOCALAPPDATA%/Android/android-ndk
~/Library/Android/sdk/ndk-bundle
~/Library/Android/ndk
}
TOOLCHAINS = [:clang, :gcc]
ARCHITECTURES = %w{
armeabi armeabi-v7a arm64-v8a
x86 x86_64
mips mips64
}
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
class PlatformDirNotFound < StandardError
def message
<<-EOM
Couldn't find Android NDK platform directories.
Set ANDROID_PLATFORM environment variable or set :platform parameter
EOM
end
end
attr_reader :params
def initialize(params)
@params = params
end
def bin_gcc(command)
command = command.to_s
command = case arch
when /armeabi/ then 'arm-linux-androideabi-'
when /arm64-v8a/ 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
gcc_toolchain_path.join('bin', command).to_s
end
def bin(command)
command = command.to_s
toolchain_path.join('bin', command).to_s
end
def home_path
@home_path ||= Pathname(
params[:ndk_home] ||
ENV['ANDROID_NDK_HOME'] ||
DEFAULT_NDK_HOMES.find { |path|
path.gsub! '%LOCALAPPDATA%', ENV['LOCALAPPDATA'] || '%LOCALAPPDATA%'
path.gsub! '\\', '/'
path.gsub! '~', Dir.home || '~'
File.directory?(path)
} || raise(AndroidNDKHomeNotFound)
)
end
def toolchain
@toolchain ||= params.fetch(:toolchain){ DEFAULT_TOOLCHAIN }
end
def toolchain_path
@toolchain_path ||= case toolchain
when :gcc
gcc_toolchain_path
when :clang
home_path.join('toolchains', 'llvm' , 'prebuilt', host_platform)
end
end
def gcc_toolchain_path
if @gcc_toolchain_path === nil then
prefix = case arch
when /armeabi/ then 'arm-linux-androideabi-'
when /arm64-v8a/ 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
test = case arch
when /armeabi/ then 'arm-linux-androideabi-*'
when /arm64-v8a/ 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
gcc_toolchain_version = Dir[home_path.join('toolchains', test)].map{|t| t.match(/-(\d+\.\d+)$/); $1.to_f }.max
@gcc_toolchain_path = home_path.join('toolchains', prefix + gcc_toolchain_version.to_s, 'prebuilt', host_platform)
end
@gcc_toolchain_path
end
def host_platform
@host_platform ||= case RUBY_PLATFORM
when /cygwin|mswin|mingw|bccwin|wince|emx/i
path = home_path.join('toolchains', 'llvm' , 'prebuilt', 'windows*')
Dir.glob(path.to_s){ |item|
next if File.file?(item)
path = Pathname(item)
break
}
path.basename
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
def arch
@arch ||= (params[:arch] || ENV['ANDROID_ARCH'] || DEFAULT_ARCH).to_s
end
def sysroot
@sysroot ||= home_path.join('platforms', platform,
case arch
when /armeabi/ then 'arch-arm'
when /arm64-v8a/ 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
).to_s
end
def platform
if @platform === nil then
@platform = params[:platform] || ENV['ANDROID_PLATFORM'] || nil
if @platform === nil
Dir.glob(home_path.join('platforms/android-*').to_s){ |item|
next if File.file?(item)
if @platform === nil
@platform = Integer(item.rpartition('-')[2])
else
platform = Integer(item.rpartition('-')[2])
@platform = platform > @platform ? platform : @platform
end
}
if @platform === nil
raise(PlatformDirNotFound)
else
@platform = "android-#{@platform}"
end
end
end
if Integer(@platform.rpartition('-')[2]) < 21
case arch
when /arm64-v8a/, /x86_64/, /mips64/
raise NotImplementedError, "Platform (#{@platform}) has no implementation for architecture (#{arch})"
end
end
@platform
end
def armeabi_v7a_mfpu
@armeabi_v7a_mfpu ||= (params[:mfpu] || 'vfpv3-d16').to_s
end
def armeabi_v7a_mfloat_abi
@armeabi_v7a_mfloat_abi ||= (params[:mfloat_abi] || 'softfp').to_s
end
def no_warn_mismatch
if %W(soft softfp).include? armeabi_v7a_mfloat_abi
''
else
',--no-warn-mismatch'
end
end
def cc
case toolchain
when :gcc then bin_gcc('gcc')
when :clang then bin('clang')
end
end
def ar
case toolchain
when :gcc then bin_gcc('ar')
when :clang then bin_gcc('ar')
end
end
def ctarget
flags = []
case toolchain
when :gcc
case arch
when /armeabi-v7a/ then flags += %W(-march=armv7-a)
when /armeabi/ then flags += %W(-march=armv5te)
when /arm64-v8a/ then flags += %W(-march=armv8-a)
when /x86_64/ then flags += %W(-march=x86-64)
when /x86/ then flags += %W(-march=i686)
when /mips64/ then flags += %W(-march=mips64r6)
when /mips/ then flags += %W(-march=mips32)
end
when :clang
case arch
when /armeabi-v7a/ then flags += %W(-target armv7-none-linux-androideabi)
when /armeabi/ then flags += %W(-target armv5te-none-linux-androideabi)
when /arm64-v8a/ then flags += %W(-target aarch64-none-linux-android)
when /x86_64/ then flags += %W(-target x86_64-none-linux-android)
when /x86/ then flags += %W(-target i686-none-linux-android)
when /mips64/ then flags += %W(-target mips64el-none-linux-android)
when /mips/ then flags += %W(-target mipsel-none-linux-android)
end
end
case arch
when /armeabi-v7a/ then flags += %W(-mfpu=#{armeabi_v7a_mfpu} -mfloat-abi=#{armeabi_v7a_mfloat_abi})
when /armeabi/ then flags += %W(-mtune=xscale -msoft-float)
when /arm64-v8a/ then flags += %W()
when /x86_64/ then flags += %W()
when /x86/ then flags += %W()
when /mips64/ then flags += %W(-fmessage-length=0)
when /mips/ then flags += %W(-fmessage-length=0)
end
flags
end
def cflags
flags = []
flags += %W(-MMD -MP -D__android__ -DANDROID --sysroot="#{sysroot}")
flags += ctarget
case toolchain
when :gcc
when :clang
flags += %W(-gcc-toolchain "#{gcc_toolchain_path}" -Wno-invalid-command-line-argument -Wno-unused-command-line-argument)
end
flags += %W(-fpic -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes)
flags
end
def ldflags
flags = []
flags += %W(--sysroot="#{sysroot}")
flags
end
def ldflags_before_libraries
flags = []
case toolchain
when :gcc
case arch
when /armeabi-v7a/ then flags += %W(-Wl#{no_warn_mismatch})
end
when :clang
flags += %W(-gcc-toolchain "#{gcc_toolchain_path.to_s}")
case arch
when /armeabi-v7a/ then flags += %W(-target armv7-none-linux-androideabi -Wl,--fix-cortex-a8#{no_warn_mismatch})
when /armeabi/ then flags += %W(-target armv5te-none-linux-androideabi)
when /arm64-v8a/ then flags += %W(-target aarch64-none-linux-android)
when /x86_64/ then flags += %W(-target x86_64-none-linux-android)
when /x86/ then flags += %W(-target i686-none-linux-android)
when /mips64/ then flags += %W(-target mips64el-none-linux-android)
when /mips/ then flags += %W(-target mipsel-none-linux-android)
end
end
flags += %W(-no-canonical-prefixes)
flags
end
end
MRuby::Toolchain.new(:android) do |conf, params|
android = MRuby::Toolchain::Android.new(params)
toolchain android.toolchain
[conf.cc, conf.cxx, conf.objc, conf.asm].each do |cc|
cc.command = android.cc
cc.flags = android.cflags
end
conf.archiver.command = android.ar
conf.linker.command = android.cc
conf.linker.flags = android.ldflags
conf.linker.flags_before_libraries = android.ldflags_before_libraries
end
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