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https://github.com/mruby/mruby
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dreamcast_shelf build config: complete overhaul
This configuration is used to support the Sega Dreamcast system. mruby is now officially supported as a KallistiOS Port in kos-ports. See: https://dreamcast.wiki/Using_Ruby_for_Sega_Dreamcast_development
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SiZiOUS
@@ -4,113 +4,80 @@
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# Requires KallistiOS (KOS)
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# http://gamedev.allusion.net/softprj/kos/
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#
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# Tested on GNU/Linux, macOS and Windows (through MinGW-w64/MSYS2, Cygwin and DreamSDK).
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# This configuration has been improved to be used as KallistiOS Port (kos-ports)
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# Updated: 2023-12-24
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#
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# Tested on GNU/Linux, macOS and Windows (MinGW-w64/MSYS2, Cygwin, DreamSDK)
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# DreamSDK is based on MinGW/MSYS: https://dreamsdk.org/
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#
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# Input this command on the directory where mruby is installed:
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# make MRUBY_CONFIG=dreamcast_shelf
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# Install mruby for Sega Dreamcast using the "mruby" kos-port.
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#
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MRuby::CrossBuild.new("dreamcast") do |conf|
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toolchain :gcc
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# Support for DreamSDK (based on MinGW/MSYS)
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# To compile mruby with DreamSDK, RubyInstaller for Windows should be installed
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DREAMSDK_HOME = ENV["DREAMSDK_HOME"]
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MSYS_ROOT = !(DREAMSDK_HOME.nil? || DREAMSDK_HOME.empty?) ? "#{DREAMSDK_HOME}/msys/1.0" : ""
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# Getting critical environment variables
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KOS_BASE = ENV["KOS_BASE"]
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KOS_CC_BASE = ENV["KOS_CC_BASE"]
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# Setting paths
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DREAMCAST_PATH = "#{MSYS_ROOT}/opt/toolchains/dc"
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KOS_PATH = "#{DREAMCAST_PATH}/kos"
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BIN_PATH = "#{DREAMCAST_PATH}/sh-elf/bin"
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if (KOS_BASE.nil? || KOS_BASE.empty? || KOS_CC_BASE.nil? || KOS_CC_BASE.empty?)
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raise "Error: KallistiOS is required; KOS_BASE/KOS_CC_BASE needs to be declared; Stop."
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end
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# C compiler
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# Flags were extracted from KallistiOS environment files
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# All flags and settings below were extracted from KallistiOS environment files
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conf.cc do |cc|
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cc.command = "#{BIN_PATH}/sh-elf-gcc"
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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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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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cc.command = "#{KOS_CC_BASE}/bin/sh-elf-gcc"
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cc.include_paths << ["#{KOS_BASE}/include", "#{KOS_BASE}/kernel/arch/dreamcast/include", "#{KOS_BASE}/addons/include", "#{KOS_BASE}/../kos-ports/include"]
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cc.flags << ["-O2", "-fomit-frame-pointer", "-fno-builtin", "-ml", "-m4-single-only", "-ffunction-sections", "-fdata-sections", "-matomic-model=soft-imask", "-ftls-model=local-exec", "-Wall", "-g"]
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cc.compile_options = %Q[%{flags} -o "%{outfile}" -c "%{infile}"]
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cc.defines << %w(_arch_dreamcast)
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cc.defines << %w(_arch_sub_pristine)
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end
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# C++ compiler
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# C++ compiler
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conf.cxx do |cxx|
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cxx.command = conf.cc.command.dup
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cxx.include_paths = conf.cc.include_paths.dup
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cxx.flags = conf.cc.flags.dup
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cxx.flags << %w(-fno-rtti -fno-exceptions)
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cxx.flags << %w(-fno-operator-names)
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cxx.defines = conf.cc.defines.dup
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cxx.compile_options = conf.cc.compile_options.dup
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end
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# Linker
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# There is an issue when making the mruby library with KallistiOS:
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# 'newlib_kill.o' and 'newlib_getpid.o' aren't found so they are explicitly
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# specified here at least for now.
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conf.linker do |linker|
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linker.command="#{BIN_PATH}/sh-elf-gcc"
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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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linker.library_paths << ["#{KOS_PATH}/lib/dreamcast", "#{KOS_PATH}/addons/lib/dreamcast", "#{KOS_PATH}/../kos-ports/lib"]
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linker.command = "#{KOS_CC_BASE}/bin/sh-elf-gcc"
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linker.flags << ["-Wl,-Ttext=0x8c010000", "-Wl,--gc-sections", "-T#{KOS_BASE}/utils/ldscripts/shlelf.xc", "-nodefaultlibs", "-Wl,--start-group -lkallisti -lc -lgcc -Wl,--end-group"]
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linker.library_paths << ["#{KOS_BASE}/lib/dreamcast", "#{KOS_BASE}/addons/lib/dreamcast", "#{KOS_BASE}/../kos-ports/lib"]
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end
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# Archiver
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conf.archiver do |archiver|
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archiver.command = "#{BIN_PATH}/sh-elf-ar"
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archiver.command = "#{KOS_CC_BASE}/bin/sh-elf-ar"
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archiver.archive_options = 'rcs "%{outfile}" %{objs}'
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end
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# No executables
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# No executables needed for KallistiOS
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conf.bins = []
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# Do not build executable test
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# Do not build test binaries
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conf.build_mrbtest_lib_only
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# Disable C++ exception
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conf.disable_cxx_exception
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# Gemboxes
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conf.gembox "default-no-stdio"
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conf.gembox "stdlib-ext"
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conf.gembox "metaprog"
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# Gems from core
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# Some Gems are incompatible and were disabled.
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conf.gem :core => "mruby-array-ext"
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# Additional Gems
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# Currently unsupported on KallistiOS: "mruby-io", "mruby-dir", "mruby-socket"
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conf.gem :core => "mruby-binding"
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conf.gem :core => "mruby-catch"
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conf.gem :core => "mruby-class-ext"
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conf.gem :core => "mruby-cmath"
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conf.gem :core => "mruby-compar-ext"
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conf.gem :core => "mruby-compiler"
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conf.gem :core => "mruby-complex"
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conf.gem :core => "mruby-enum-chain"
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conf.gem :core => "mruby-enum-ext"
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conf.gem :core => "mruby-enum-lazy"
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conf.gem :core => "mruby-enumerator"
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conf.gem :core => "mruby-errno"
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conf.gem :core => "mruby-error"
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conf.gem :core => "mruby-eval"
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conf.gem :core => "mruby-exit"
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conf.gem :core => "mruby-fiber"
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conf.gem :core => "mruby-hash-ext"
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# conf.gem :core => "mruby-io"
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conf.gem :core => "mruby-kernel-ext"
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conf.gem :core => "mruby-math"
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conf.gem :core => "mruby-metaprog"
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conf.gem :core => "mruby-method"
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conf.gem :core => "mruby-numeric-ext"
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conf.gem :core => "mruby-object-ext"
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conf.gem :core => "mruby-objectspace"
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conf.gem :core => "mruby-os-memsize"
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conf.gem :core => "mruby-pack"
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conf.gem :core => "mruby-print"
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conf.gem :core => "mruby-proc-binding"
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conf.gem :core => "mruby-proc-ext"
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conf.gem :core => "mruby-random"
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conf.gem :core => "mruby-range-ext"
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conf.gem :core => "mruby-rational"
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conf.gem :core => "mruby-sleep"
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# conf.gem :core => "mruby-socket"
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conf.gem :core => "mruby-sprintf"
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conf.gem :core => "mruby-string-ext"
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conf.gem :core => "mruby-struct"
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conf.gem :core => "mruby-symbol-ext"
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# conf.gem :core => "mruby-test"
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# conf.gem :core => "mruby-time"
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conf.gem :core => "mruby-toplevel-ext"
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end
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