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|
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
flags
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
|
