AndroidProject

# File lib/makeconf/androidproject.rb, line 8
def initialize(options)
  super(options)

  # Public
  @target_platform = 'android-14'
  @target_arch = 'arm'
  @target_arch_abi = 'armeabi'
  @target_abi = 'armeabi-v7a'
  @ndk_path = nil
  @sdk_path = nil

  # Private
  @prebuilt_libs = []

  # KLUDGE: We need to know the NDK and SDK paths very early on.
  # Peek at the original ARGV to find them.
  Makeconf.original_argv.each do |arg|
    if arg =~ /^--with-ndk=(.*)/
       @ndk_path = $1
    end
    if arg =~ /^--with-sdk=(.*)/
       @sdk_path = $1
    end
  end

  self.ndk_toolchain_version = '4.6'
end

# File lib/makeconf/androidproject.rb, line 185
def cflags(cc_path)
  res = []
  if cc_path =~ /clang/
    res.push '-gcc-toolchain', @ndk_path + '/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86'
    res.push '-isystem', @ndk_path + '/toolchains/llvm-3.2/prebuilt/linux-x86/lib/clang/3.2/include'
    res.push %{ -ffunction-sections -funwind-tables -fstack-protector -D__ARM_ARCH_5__ -D__ARM_ARCH_5T__ -D__ARM_ARCH_5E__ -D__ARM_ARCH_5TE__ -target armv7-none-linux-androideabi -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -mthumb -Os -fomit-frame-pointer -fno-strict-aliasing -I. -DANDROID -fblocks -D_GNU_SOURCE -D__BLOCKS__ -Wa,--noexecstack -O0 -g }
    res.push "-I#{@ndk_path}/platforms/android-14/arch-arm/usr/include"
  end
  res.flatten
end

# File lib/makeconf/androidproject.rb, line 180
def ndk_libdir
   ndk_sysroot + '/usr/lib/'
end

# File lib/makeconf/androidproject.rb, line 175
def ndk_sysroot
   @ndk_path + '/platforms/' + @target_platform + '/arch-' + @target_arch
end

# File lib/makeconf/androidproject.rb, line 54
def ndk_toolchain_version
  @ndk_toolchain_version
end

# File lib/makeconf/androidproject.rb, line 58
def ndk_toolchain_version=(version)
  @ndk_toolchain_version = version

  if version =~ /^clang/
    ndk_cc = toolchain_binary('clang')
  else
    ndk_cc = toolchain_binary('gcc')
  end

  #FIXME -overwrites previous Compiler object
  @cc = CCompiler.new(
          :search => ndk_cc
          ) 
  @cc.sysroot = ndk_sysroot
  @cc.platform_cflags = cflags(cc.path)

  # Clang uses an alternate linker
  if version =~ /^clang/
    ld = Linker.new
    ld.path = @ndk_path + '/toolchains/llvm-3.2/prebuilt/linux-x86/bin/clang++'
    ld.platform_ldflags = [ '-Wl,--gc-sections', 
    '-Wl,-z,nocopyreloc',
    "--sysroot=#{@ndk_path}/platforms/android-14/arch-arm",
    # FIXME: might need to put in ldadd
    "-gcc-toolchain #{@ndk_path}/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86",
    "-target armv7-none-linux-androideabi",
    "-Wl,--fix-cortex-a8",
    "-Wl,--no-undefined",
    "-Wl,-z,noexecstack",
    "-Wl,-z,relro",
    "-Wl,-z,now" ]
    @cc.ld = ld
  end
end

# File lib/makeconf/androidproject.rb, line 39
def parse_options(opts)
  super(opts)

  opts.separator ""
  opts.separator "Android options:"

  opts.on('--with-ndk=DIRECTORY', "Path to the Android NDK") do |arg|
     @ndk_path = arg
  end
  opts.on('--with-sdk=DIRECTORY', "Path to the Android SDK") do |arg|
     @sdk_path = arg
  end

end

# File lib/makeconf/androidproject.rb, line 93
def preconfigure

  printf 'checking for the Android NDK.. '
  throw 'Unable to locate the NDK. Please set the --with-ndk variable to the correct path' if @ndk_path.nil?
  puts @ndk_path
  printf 'checking for the Android SDK.. '
  throw 'Unable to locate the SDK. Please set the --with-sdk variable to the correct path' if @sdk_path.nil?
  puts @sdk_path
end

# File lib/makeconf/androidproject.rb, line 103
def to_make

  write_android_mk
  write_application_mk

  # Generate the ndk-build command
  ndk_build = '$(NDK)/ndk-build V=1 NDK_DEBUG=1 NDK_PROJECT_PATH=.'
  unless @ndk_toolchain_version.nil?
    ndk_build += " NDK_TOOLCHAIN_VERSION=#{@ndk_toolchain_version}"
  end

  mf = super

  mf.define_variable('NDK_LIBDIR', ':=', ndk_libdir)
  mf.define_variable('NDK', '?=', @ndk_path)
  mf.define_variable('SDK', '?=', @sdk_path)
  mf.define_variable('GDB', '?=', toolchain_binary('gdb'))
  mf.define_variable('ADB', '?=', '$(SDK)/platform-tools/adb')
  mf.target('all').rules.push ndk_build
  
  # Copy objects from obj/ to the top level, to match the behavior
  # of non-Android platforms
  # FIXME: this is very crude and should use the actual :output filenames
  #        also, it will only copy libraries and not executables
  #
  mf.target('all').rules.push 'cp obj/local/*/*.a obj/local/*/*.so .'

  # Generate the 'make clean' target
  mf.target('clean').rules = [ ndk_build + ' clean' ]

  # Generate the 'make check' target
  mf.target('check').deps = []        # FIXME: should depend on 'all'
  @build.each do |obj|
    if obj.kind_of?(Test)
      mf.target('check').rules.push([
        '$(ADB) push libs/' + @target_abi + '/' + obj.output + ' /data/local/tmp',
        '$(ADB) shell chmod 751 /data/local/tmp/' + obj.output,
        '$(ADB) shell /data/local/tmp/' + obj.output,
        '$(ADB) shell rm /data/local/tmp/' + obj.output
        ])
    end
  end

  # Run a $(BINARY) under the Android debugger
  # see: http://www.kandroid.org/online-pdk/guide/debugging_gdb.html
  mf.add_target('debug', [], [
       '$(ADB) forward tcp:5039 tcp:5039',
       '$(ADB) push $(BINARY) /data/local/tmp',
       '$(ADB) shell chmod 751 /data/local/tmp/`basename $(BINARY)`',
       '$(ADB) shell gdbserver :5039 /data/local/tmp/`basename $(BINARY)` &',
       'sleep 2', # give gdbserver time to start

        # Pull things from the device that are needed for debugging
        '$(ADB) pull /system/bin/linker obj/local/armeabi/linker',
        '$(ADB) pull /system/lib/libc.so obj/local/armeabi/libc.so',
        '$(ADB) pull /system/lib/libm.so obj/local/armeabi/libm.so',
        '$(ADB) pull /system/lib/libstdc++.so obj/local/armeabi/libstdc++.so',

       'echo "set solib-search-path obj/local/armeabi" > .gdb-commands',
       'echo "target remote :5039" >> .gdb-commands',
       '$(GDB) -x .gdb-commands $(BINARY)',
       'rm .gdb-commands',
       ])

  # Connect to the device and run a shell
  # TODO: add to makeconf
  mf.add_target('shell', [], [ '$(ADB) shell' ])

  mf
end