Files
elna/rakelib/boot.rake

108 lines
2.9 KiB
Ruby

# 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 'uri'
require 'net/http'
require 'open3'
def gcc_verbose(gcc_binary)
read, write = IO.pipe
sh({'LANG' => 'C'}, gcc_binary, '--verbose', err: write)
write.close
output = read.read
read.close
output
end
def find_build_target(gcc_version)
gcc_verbose('gcc')
.lines
.find { |line| line.start_with? 'Target: ' }
.split(' ')
.last
.strip
end
def download_and_pipe(url, target, command)
target.mkpath
Net::HTTP.start(url.host, url.port, use_ssl: url.scheme == 'https') do |http|
request = Net::HTTP::Get.new url.request_uri
http.request request do |response|
case response
when Net::HTTPRedirection
download_and_pipe URI.parse(response['location']), target, command
when Net::HTTPSuccess
Dir.chdir target.to_path do
Open3.popen2(*command) do |stdin, stdout, wait_thread|
Thread.new do
stdout.each { |line| puts line }
end
response.read_body do |chunk|
stdin.write chunk
end
stdin.close
wait_thread.value
end
end
else
response.error!
end
end
end
end
namespace :boot do
# Dependencies.
GCC_VERSION = "15.1.0"
HOST_GCC = TMP + 'host/gcc'
directory HOST_GCC
directory(TMP + 'tools')
desc 'Download and configure the bootstrap compiler'
task configure: [TMP + 'tools', HOST_GCC, HOST_INSTALL] do
url = URI.parse "https://gcc.gnu.org/pub/gcc/releases/gcc-#{GCC_VERSION}/gcc-#{GCC_VERSION}.tar.xz"
build_target = find_build_target GCC_VERSION
source_directory = TMP + "tools/gcc-#{GCC_VERSION}"
frontend_link = source_directory + 'gcc'
download_and_pipe url, source_directory.dirname, ['tar', '-Jxv']
sh 'contrib/download_prerequisites', chdir: source_directory.to_path
File.symlink Pathname.new('.').relative_path_from(frontend_link), (frontend_link + 'elna')
configure_options = [
"--prefix=#{HOST_INSTALL.realpath}",
'--with-sysroot=/',
'--enable-languages=c,c++,m2,elna',
'--disable-bootstrap',
'--disable-multilib',
"--target=#{build_target}",
"--build=#{build_target}",
"--host=#{build_target}"
]
flags = '-O0 -g -fPIC'
env = {
'CFLAGS' => flags,
'CXXFLAGS' => flags,
}
configure = source_directory.relative_path_from(HOST_GCC) + 'configure'
sh env, configure.to_path, *configure_options, chdir: HOST_GCC
end
desc 'Make and install the bootstrap compiler'
task :make do
sh 'make', '-j', Etc.nprocessors.to_s, chdir: HOST_GCC
sh 'make', 'install', chdir: HOST_GCC
end
end
desc 'Build the bootstrap compiler'
task boot: %w[boot:configure boot:make]