1 | MRuby::Build.new do |conf|
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2 | # Gets set by the VS command prompts
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3 | if ENV['VisualStudioVersion'] || ENV['VSINSTALLDIR']
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4 | toolchain :visualcpp
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5 | else
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6 | toolchain :gcc
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7 | end
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8 |
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9 | enable_debug
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10 |
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11 | # Include the default GEMs
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12 | conf.gembox 'default'
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13 | end
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14 |
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15 | # Cross Compiling configuration for the Sega Dreamcast
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16 | # This configuration requires KallistiOS (KOS)
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17 | # https://dreamcast.wiki
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18 | #
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19 | # Tested on GNU/Linux, MinGW-w64/MSYS2, Cygwin, macOS and MinGW/MSYS (see below)
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20 | #
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21 | MRuby::CrossBuild.new("dreamcast") do |conf|
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22 | toolchain :gcc
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23 |
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24 | # Support for DreamSDK (based on MinGW/MSYS)
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25 | # To compile mruby with DreamSDK, RubyInstaller for Windows should be installed
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26 | DREAMSDK_HOME = ENV["DREAMSDK_HOME"]
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27 | MSYS_ROOT = !(DREAMSDK_HOME.nil? || DREAMSDK_HOME.empty?) ? "#{DREAMSDK_HOME}/msys/1.0" : ""
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28 |
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29 | # Setting paths
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30 | DREAMCAST_PATH = "#{MSYS_ROOT}/opt/toolchains/dc"
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31 | KOS_PATH = "#{DREAMCAST_PATH}/kos"
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32 | BIN_PATH = "#{DREAMCAST_PATH}/sh-elf/bin"
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33 |
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34 | # C compiler
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35 | # Flags were extracted from KallistiOS environment files
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36 | conf.cc do |cc|
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37 | cc.command = "#{BIN_PATH}/sh-elf-gcc"
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38 | cc.include_paths << ["#{KOS_PATH}/include", "#{KOS_PATH}/kernel/arch/dreamcast/include", "#{KOS_PATH}/addons/include", "#{KOS_PATH}/../kos-ports/include"]
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39 | cc.flags << ["-O2", "-fomit-frame-pointer", "-ml", "-m4-single-only", "-ffunction-sections", "-fdata-sections", "-Wall", "-g", "-fno-builtin", "-ml", "-m4-single-only", "-Wl,-Ttext=0x8c010000", "-Wl,--gc-sections", "-T#{KOS_PATH}/utils/ldscripts/shlelf.xc", "-nodefaultlibs"]
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40 | cc.compile_options = %Q[%{flags} -o "%{outfile}" -c "%{infile}"]
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41 | cc.defines << %w(_arch_dreamcast)
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42 | cc.defines << %w(_arch_sub_pristine)
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43 | end
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44 |
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45 | # C++ compiler
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46 | conf.cxx do |cxx|
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47 | cxx.command = conf.cc.command.dup
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48 | cxx.include_paths = conf.cc.include_paths.dup
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49 | cxx.flags = conf.cc.flags.dup
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50 | cxx.flags << %w(-fno-rtti -fno-exceptions)
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51 | cxx.defines = conf.cc.defines.dup
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52 | cxx.compile_options = conf.cc.compile_options.dup
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53 | end
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54 |
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55 | # Linker
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56 | # There is an issue when making the mruby library with KallistiOS:
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57 | # 'newlib_kill.o' and 'newlib_getpid.o' aren't found so they are explicitly
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58 | # specified here at least for now.
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59 | conf.linker do |linker|
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60 | linker.command="#{BIN_PATH}/sh-elf-gcc"
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61 | linker.flags << ["#{MSYS_ROOT}/opt/toolchains/dc/kos/kernel/build/newlib_kill.o", "#{MSYS_ROOT}/opt/toolchains/dc/kos/kernel/build/newlib_getpid.o", "-Wl,--start-group -lkallisti -lc -lgcc -Wl,--end-group"]
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62 | linker.library_paths << ["#{KOS_PATH}/lib/dreamcast", "#{KOS_PATH}/addons/lib/dreamcast", "#{KOS_PATH}/../kos-ports/lib"]
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63 | end
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64 |
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65 | # Archiver
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66 | conf.archiver do |archiver|
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67 | archiver.command = "#{BIN_PATH}/sh-elf-ar"
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68 | archiver.archive_options = 'rcs "%{outfile}" %{objs}'
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69 | end
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70 |
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71 | # No executables
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72 | conf.bins = []
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73 |
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74 | # Do not build executable test
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75 | conf.build_mrbtest_lib_only
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76 |
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77 | # Disable C++ exception
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78 | conf.disable_cxx_exception
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79 |
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80 | # Gems from core
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81 | # removing mruby-io
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82 | conf.gem :core => "mruby-metaprog"
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83 | conf.gem :core => "mruby-pack"
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84 | conf.gem :core => "mruby-sprintf"
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85 | conf.gem :core => "mruby-print"
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86 | conf.gem :core => "mruby-math"
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87 | conf.gem :core => "mruby-time"
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88 | conf.gem :core => "mruby-struct"
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89 | conf.gem :core => "mruby-compar-ext"
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90 | conf.gem :core => "mruby-enum-ext"
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91 | conf.gem :core => "mruby-string-ext"
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92 | conf.gem :core => "mruby-numeric-ext"
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93 | conf.gem :core => "mruby-array-ext"
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94 | conf.gem :core => "mruby-hash-ext"
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95 | conf.gem :core => "mruby-range-ext"
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96 | conf.gem :core => "mruby-proc-ext"
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97 | conf.gem :core => "mruby-symbol-ext"
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98 | conf.gem :core => "mruby-random"
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99 | conf.gem :core => "mruby-object-ext"
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100 | conf.gem :core => "mruby-objectspace"
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101 | conf.gem :core => "mruby-fiber"
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102 | conf.gem :core => "mruby-enumerator"
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103 | conf.gem :core => "mruby-enum-lazy"
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104 | conf.gem :core => "mruby-toplevel-ext"
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105 | conf.gem :core => "mruby-kernel-ext"
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106 | conf.gem :core => "mruby-class-ext"
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107 | conf.gem :core => "mruby-compiler"
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108 | end
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