build_config.rb for STM32F4Discovery with my modified AeroQuad. 2014,4, April

build_config.rb

MRuby::CrossBuild.new("STM32F4") do |conf|
  toolchain :gcc

  ARM_TOOLCHAIN_PATH = "/Applications/MapleIDE.app/Contents/Resources/Java/hardware/tools/arm/bin"

  LIBMAPLE_PATH = "/Users/koji/tools/AeroQuad/Libmaple/libmaple"

  conf.cc do |cc|
    cc.command = "#{ARM_TOOLCHAIN_PATH}/arm-none-eabi-gcc"
    cc.include_paths << ["#{LIBMAPLE_PATH}/libmaple", 
                        "#{LIBMAPLE_PATH}/wirish",
                        "#{LIBMAPLE_PATH}/wirish/comm",
                        "#{LIBMAPLE_PATH}/wirish/boards",
                        "#{LIBMAPLE_PATH}/libraries"
                        ]

    cc.flags = %w(-Os -g3 -gdwarf-2  -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=softfp -ffunction-sections 
                  -nostdlib -fdata-sections -Wl,--gc-sections -DVECT_TAB_BASE -DBOARD_discovery_f4 -DMCU_STM32F406VG 
                  -DERROR_LED_PORT=GPIOD -DERROR_LED_PIN=14 
                  -DSTM32_HIGH_DENSITY -DSTM32F2 -DF_CPU=168000000UL -D__FPU_PRESENT=1)

    #some adjustment to reduce heap usage.
    cc.defines << %w(MRB_HEAP_PAGE_SIZE=64)
    cc.defines << %w(MRB_IREP_ARRAY_INIT_SIZE=128u)
    cc.defines << %w(MRB_USE_IV_SEGLIST)
    cc.defines << %w(KHASH_DEFAULT_SIZE=8)
    cc.defines << %w(MRB_STR_BUF_MIN_SIZE=20)
  end
  
  conf.cxx do |cxx|
    cxx.command = conf.cc.command.dup
    cxx.include_paths = cc.include_paths.dup
    cxx.flags = conf.cc.flags.dup << %w(-fno-rtti -fno-exceptions)
    #cxx.flags = conf.cc.flags.dup << %w(-fno-rtti)
    cxx.defines = conf.cc.defines.dup
    cxx.compile_options = conf.cc.compile_options.dup
  end

  conf.archiver do |archiver|
    archiver.command = "#{ARM_TOOLCHAIN_PATH}/arm-none-eabi-ar"
  end

  conf.bins = []

  #do not build executable test
  conf.build_mrbtest_lib_only

  #should be before any conf.gem line.
  disable_cxx_exception

  conf.gem :core => "mruby-toplevel-ext"
  conf.gem :core => "mruby-string-ext"
  #conf.gem "/Users/koji/work/mruby/mruby-arduino"
  conf.gem :github => "kyab/mruby-arduino", :branch => "master"
  conf.gem :github => "masamitsu-murase/mruby-hs-regexp", :branch => "master" 

  #include debug info 
  #conf.mrbc.compile_options << " -g"

  


  #testing experimental thread support
  # conf.cc.defines << ["ENABLE_THREAD"]
  # conf.cxx.defines << ["ENABLE_THREAD"]
  # conf.gem "/Users/koji/work/mruby/mruby-thread-freertos" do |g|
  #   #g.cc.include_paths << ["#{LIBMAPLE_PATH}/libraries/FreeRTOS"]
  #   g.cxx.include_paths << ["#{LIBMAPLE_PATH}/libraries/FreeRTOS"]
  # end
end

MRuby::Build.new do |conf|

  toolchain :clang

  conf.gembox "default"

  conf.cc.flags << %w(-DENABLE_READLINE -O0 -m64)   #-arch i386 -arch x86_64
  conf.cc.compile_options = "%{flags} -o %{outfile} -c %{infile}"  #building universal binary dont allow -M
  conf.linker.flags << %(-m64)
  
  conf.linker.libraries << "edit"   #OSX readline compatible library

  # conf.gem "/Users/koji/work/mruby/mruby-bin-mirb-hostbased"
  # conf.gem "/Users/koji/work/mruby/mruby-kycocoa"

  #include debug info 
  conf.mrbc.compile_options << " -g"
end