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Merge pull request #4946 from sizious/sega-dreamcast-example

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Improving comments in the cross-compiling sample for the Sega Dreamcast.
This commit is contained in:
Yukihiro "Matz" Matsumoto
2020-02-23 18:01:05 +09:00
committed by GitHub
parent 3ba32e80af 260dc6d741
commit be86bd3c49
1 changed files with 25 additions and 15 deletions
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examples/targets/build_config_dreamcast_shelf.rb
+25 -15
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@@ -1,6 +1,5 @@
MRuby::Build.new do |conf|
# Gets set by the VS command prompts.
# Gets set by the VS command prompts
if ENV['VisualStudioVersion'] || ENV['VSINSTALLDIR']
toolchain :visualcpp
else
@@ -9,27 +8,31 @@ MRuby::Build.new do |conf|
enable_debug
# include the default GEMs
# Include the default GEMs
conf.gembox 'default'
end
# Cross Compiling configuration for Sega Dreamcast
# This requires KallistiOS to be installed
# Cross Compiling configuration for the Sega Dreamcast
# This configuration requires KallistiOS (KOS)
# https://dreamcast.wiki
#
# Tested on GNU/Linux, MinGW-w64/MSYS2, Cygwin, macOS and MinGW/MSYS (see below)
#
MRuby::CrossBuild.new("dreamcast") do |conf|
toolchain :gcc
# Supporting DreamSDK (if necessarys)
# Support for DreamSDK (based on MinGW/MSYS)
# To compile mruby with DreamSDK, RubyInstaller for Windows should be installed
DREAMSDK_HOME = ENV["DREAMSDK_HOME"]
MSYS_ROOT = !(DREAMSDK_HOME.nil? || DREAMSDK_HOME.empty?) ? "#{DREAMSDK_HOME}/msys/1.0" : ""
# For all host systems
# Setting paths
DREAMCAST_PATH = "#{MSYS_ROOT}/opt/toolchains/dc"
KOS_PATH = "#{DREAMCAST_PATH}/kos"
BIN_PATH = "#{DREAMCAST_PATH}/sh-elf/bin"
# C compiler
# Flags were extracted from KallistiOS environment files
conf.cc do |cc|
cc.command = "#{BIN_PATH}/sh-elf-gcc"
cc.include_paths << ["#{KOS_PATH}/include", "#{KOS_PATH}/kernel/arch/dreamcast/include", "#{KOS_PATH}/addons/include", "#{KOS_PATH}/../kos-ports/include"]
@@ -39,6 +42,7 @@ MRuby::CrossBuild.new("dreamcast") do |conf|
cc.defines << %w(_arch_sub_pristine)
end
# C++ compiler
conf.cxx do |cxx|
cxx.command = conf.cc.command.dup
cxx.include_paths = conf.cc.include_paths.dup
@@ -47,28 +51,34 @@ MRuby::CrossBuild.new("dreamcast") do |conf|
cxx.defines = conf.cc.defines.dup
cxx.compile_options = conf.cc.compile_options.dup
end
# Linker
# There is an issue when making the mruby library with KallistiOS:
# 'newlib_kill.o' and 'newlib_getpid.o' aren't found so they are explicitly
# specified here at least for now.
conf.linker do |linker|
linker.command="#{BIN_PATH}/sh-elf-gcc"
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"]
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"]
linker.library_paths << ["#{KOS_PATH}/lib/dreamcast", "#{KOS_PATH}/addons/lib/dreamcast", "#{KOS_PATH}/../kos-ports/lib"]
end
# Archiver
conf.archiver do |archiver|
archiver.command = "#{BIN_PATH}/sh-elf-ar"
archiver.archive_options = 'rcs %{outfile} %{objs}'
end
#no executables
# No executables
conf.bins = []
#do not build executable test
# Do not build executable test
conf.build_mrbtest_lib_only
#disable C++ exception
# Disable C++ exception
conf.disable_cxx_exception
#gems from core
# Gems from core
# removing mruby-io
conf.gem :core => "mruby-metaprog"
conf.gem :core => "mruby-pack"
conf.gem :core => "mruby-sprintf"