Merge pull request #5243 from boatrite/add-gba-build-config

Add example for cross-compiling to Nintendo GameBoyAdvance

build_config/gameboyadvance.rb

+# Cross Compiling configuration for the Nintendo GameBoyAdvance.
+# This configuration requires devkitARM
+# https://devkitpro.org/wiki/Getting_Started/devkitARM
+#
+# Tested only on GNU/Linux
+#
+MRuby::CrossBuild.new("gameboyadvance") do |conf|
+  toolchain :gcc
+
+  DEVKITPRO_PATH = "/opt/devkitpro"
+  BIN_PATH = "#{DEVKITPRO_PATH}/devkitARM/bin"
+
+  # C compiler
+  conf.cc do |cc|
+    cc.command = "#{BIN_PATH}/arm-none-eabi-gcc"
+    cc.flags << ["-mthumb-interwork", "-mthumb", "-O2"]
+    cc.compile_options = %(%{flags} -o "%{outfile}" -c "%{infile}")
+  end
+
+  # C++ compiler
+  conf.cxx do |cxx|
+    cxx.command = "#{BIN_PATH}/arm-none-eabi-g++"
+    cxx.include_paths = conf.cc.include_paths.dup
+    cxx.flags = conf.cc.flags.dup
+    cxx.flags << %w[-fno-rtti -fno-exceptions]
+    cxx.defines = conf.cc.defines.dup
+    cxx.compile_options = conf.cc.compile_options.dup
+  end
+
+  # Linker
+  conf.linker do |linker|
+    linker.command = "#{BIN_PATH}/arm-none-eabi-gcc"
+    linker.flags << ["-mthumb-interwork", "-mthumb", "-specs=gba.specs"]
+  end
+
+  # No executables
+  conf.bins = []
+
+  # Do not build executable test
+  conf.build_mrbtest_lib_only
+
+  # Disable C++ exception
+  conf.disable_cxx_exception
+
+  # Gems from core
+  # removing mruby-io
+  conf.gem core: "mruby-metaprog"
+  conf.gem core: "mruby-pack"
+  conf.gem core: "mruby-sprintf"
+  conf.gem core: "mruby-print"
+  conf.gem core: "mruby-math"
+  conf.gem core: "mruby-time"
+  conf.gem core: "mruby-struct"
+  conf.gem core: "mruby-compar-ext"
+  conf.gem core: "mruby-enum-ext"
+  conf.gem core: "mruby-string-ext"
+  conf.gem core: "mruby-numeric-ext"
+  conf.gem core: "mruby-array-ext"
+  conf.gem core: "mruby-hash-ext"
+  conf.gem core: "mruby-range-ext"
+  conf.gem core: "mruby-proc-ext"
+  conf.gem core: "mruby-symbol-ext"
+  conf.gem core: "mruby-random"
+  conf.gem core: "mruby-object-ext"
+  conf.gem core: "mruby-objectspace"
+  conf.gem core: "mruby-fiber"
+  conf.gem core: "mruby-enumerator"
+  conf.gem core: "mruby-enum-lazy"
+  conf.gem core: "mruby-toplevel-ext"
+  conf.gem core: "mruby-kernel-ext"
+  conf.gem core: "mruby-class-ext"
+  conf.gem core: "mruby-compiler"
+end