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# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at https://mozilla.org/MPL/2.0/.
# frozen_string_literal: true
require 'pathname'
require 'rake/clean'
CLEAN.include 'build/boot', 'build/valid'
file 'build/build.ninja' => ['build'] do |t|
File.open t.name, 'w' do |f|
f << <<~NINJA
builddir = build
cflags = -fpie -g
rule cc
command = gcc $cflags -nostdlib -o $out $in
rule as
command = gcc $cflags -c -o $out $in
rule link1
command = ld -o $out $in
rule link2
command = ld -o $out --dynamic-linker /lib32/ld-linux-riscv32-ilp32d.so.1 /usr/lib/crt1.o /usr/lib/crti.o -lc $in /usr/lib/crtn.o
rule bootstrap
command = $bootstrap < \$in > \$out
NINJA
f << <<~NINJA
build build/boot/stage1/cl: cc boot/stage1.s
build build/valid/stage1/cl.s: bootstrap boot/stage1.s | build/boot/stage1/cl
bootstrap = build/boot/stage1/cl
build build/valid/stage1/cl.o: as build/valid/stage1/cl.s
build build/valid/stage1/cl: link1 build/valid/stage1/cl.o
NINJA
STAGES.each do |stage|
stage_number = stage.delete_prefix('stage').to_i
arguments_path = Pathname.new('boot') + stage + 'linker.arg'
if arguments_path.exist?
link = 'link2'
else
link = 'link1'
end
boot_stage = "build/boot/stage#{stage_number}"
valid_stage = "build/valid/stage#{stage_number}"
f << <<~NINJA
build #{boot_stage}/cl.s: bootstrap boot/stage#{stage_number}/cl.elna | build/valid/stage#{stage_number.pred}/cl
bootstrap = build/valid/stage#{stage_number.pred}/cl
build #{boot_stage}/cl.o: as #{boot_stage}/cl.s
build #{boot_stage}/cl: #{link} #{boot_stage}/cl.o
build #{valid_stage}/cl.s: bootstrap boot/stage#{stage_number}/cl.elna | #{boot_stage}/cl
bootstrap = build/boot/stage#{stage_number}/cl
build #{valid_stage}/cl.o: as #{valid_stage}/cl.s
build #{valid_stage}/cl: #{link} #{valid_stage}/cl.o
NINJA
end
f << <<~NINJA
default build/valid/#{STAGES.last}/cl
NINJA
end
end
file "build/valid/#{STAGES.last}/cl" => 'build/build.ninja' do |t|
sh 'ninja', '-f', t.prerequisites.first
end
namespace :ninja do
desc 'Forces the regeneration of build/build.ninja'
task :build do
rm_f 'build/build.ninja'
Rake::Task['build/build.ninja'].invoke
end
end
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