62 lines
1.9 KiB
Ruby
62 lines
1.9 KiB
Ruby
# This Source Code Form is subject to the terms of the Mozilla Public License,
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# v. 2.0. If a copy of the MPL was not distributed with this file, You can
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# obtain one at https://mozilla.org/MPL/2.0/. -}
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# frozen_string_literal: true
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CROSS_GCC = 'build/rootfs/bin/riscv32-unknown-linux-gnu-gcc'
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SYSROOT = 'build/sysroot'
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QEMU = 'qemu-riscv32'
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def assemble_stage(output, compiler, source)
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arguments = [QEMU, '-L', SYSROOT, *compiler]
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puts Term::ANSIColor.green(arguments * ' ')
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puts
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Open3.popen2(*arguments) do |qemu_in, qemu_out|
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qemu_in.write File.read(*source)
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qemu_in.close
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IO.copy_stream qemu_out, output
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qemu_out.close
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end
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end
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library = []
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Dir.glob('boot/*.s').each do |assembly_source|
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source_basename = Pathname.new(assembly_source).basename
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target_object = Pathname.new('build/boot') + source_basename.sub_ext('.o')
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file target_object.to_s => [assembly_source, 'build/boot'] do |t|
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sh CROSS_GCC, '-c', '-o', t.name, assembly_source
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end
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library << assembly_source unless source_basename.to_s.start_with? 'stage'
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end
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desc 'Initial stage'
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file 'build/boot/stage1' => ['build/boot/stage1.o', *library] do |t|
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sh CROSS_GCC, '-nostdlib', '-o', t.name, *t.prerequisites
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end
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file 'build/boot/stage2a.s' => ['build/boot/stage1', 'boot/stage2.elna'] do |t|
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source, exe = t.prerequisites.partition { |prerequisite| prerequisite.end_with? '.elna' }
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File.open t.name, 'w' do |output|
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assemble_stage output, exe, source
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end
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end
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['build/boot/stage2a', 'build/boot/stage2b'].each do |exe|
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file exe => [exe.ext('.s'), *library] do |t|
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sh CROSS_GCC, '-nostdlib', '-o', t.name, *t.prerequisites
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end
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end
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file 'build/boot/stage2b.s' => ['build/boot/stage2a', 'boot/stage2.elna'] do |t|
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source, exe = t.prerequisites.partition { |prerequisite| prerequisite.end_with? '.elna' }
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File.open t.name, 'w' do |output|
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assemble_stage output, exe, source
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end
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end
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