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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 'uri'
require 'net/http'
require 'open3'
require 'pathname'
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_verbose(ENV.fetch 'CC', '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 :gcc do
# Dependencies.
GCC_VERSION = "15.2.0"
HOST_GCC = 'build/host/gcc'
HOST_INSTALL = 'build/host/install'
GCC_PATCH = 'https://raw.githubusercontent.com/Homebrew/formula-patches/575ffcaed6d3112916fed77d271dd3799a7255c4/gcc/gcc-15.1.0.diff'
directory HOST_GCC
directory HOST_INSTALL
directory 'build/tools'
desc 'Download and configure the bootstrap compiler'
task configure: ['build/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
source_directory = Pathname.new "build/tools/gcc-#{GCC_VERSION}"
frontend_link = source_directory + 'gcc'
download_and_pipe url, source_directory.dirname, ['tar', '-Jxv']
download_and_pipe URI.parse(GCC_PATCH), source_directory, ['patch', '-p1']
sh 'contrib/download_prerequisites', chdir: source_directory.to_path
File.symlink Pathname.new('.').relative_path_from(frontend_link), (frontend_link + 'elna')
configure_options = [
"--prefix=#{File.realpath HOST_INSTALL}",
'--enable-languages=c,c++,elna',
'--disable-bootstrap',
'--disable-multilib',
'--with-system-zlib',
"--target=#{build_target}",
"--build=#{build_target}",
"--host=#{build_target}"
]
if File.symlink? '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
configure_options << '--with-sysroot=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk'
end
env = ENV.slice 'CC', 'CXX'
env['CFLAGS'] = env['CXXFLAGS'] = '-O0 -g -fPIC -I/opt/homebrew/opt/flex/include'
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 gcc: %w[gcc:configure gcc:make]
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