Support simple variable assignment

1 files changed, 0 insertions, 323 deletions

diff --git a/rakelib/cross.rake b/rakelib/cross.rake
deleted file mode 100644
index b390590..0000000
--- a/rakelib/cross.rake
+++ /dev/null
@@ -1,323 +0,0 @@
-# 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 'uri'
-require 'net/http'
-require 'rake/clean'
-require 'open3'
-require 'etc'
-
-GCC_VERSION = "15.1.0"
-BINUTILS_VERSION = '2.44'
-GLIBC_VERSION = '2.41'
-KERNEL_VERSION = '5.15.181'
-
-CLOBBER.include 'build'
-
-class BuildTarget
-  attr_accessor(:build, :gcc, :target, :tmp)
-
-  def gxx
-    @gcc.gsub 'c', '+'
-  end
-
-  def sysroot
-    tmp + 'sysroot'
-  end
-
-  def rootfs
-    tmp + 'rootfs'
-  end
-
-  def tools
-    tmp + 'tools'
-  end
-end
-
-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, task)
-  gcc_binary = 'gcc'
-  output = gcc_verbose gcc_binary
-
-  if output.start_with? 'Apple clang'
-    gcc_binary = "gcc-#{gcc_version.split('.').first}"
-    output = gcc_verbose gcc_binary
-  end
-  result = output
-    .lines
-    .each_with_object(BuildTarget.new) do |line, accumulator|
-      if line.start_with? 'Target: '
-        accumulator.build = line.split(' ').last.strip
-      elsif line.start_with? 'COLLECT_GCC'
-        accumulator.gcc = line.split('=').last.strip
-      end
-    end
-  result.tmp = Pathname.new('./build')
-  task.with_defaults target: 'riscv32-unknown-linux-gnu'
-  result.target = task[:target]
-  result
-end
-
-def download_and_unarchive(url, target)
-  case File.extname url.path
-  when '.bz2'
-    archive_type = '-j'
-    root_directory = File.basename url.path, '.tar.bz2'
-  when '.xz'
-    archive_type = '-J'
-    root_directory = File.basename url.path, '.tar.xz'
-  else
-    raise "Unsupported archive type #{url.path}."
-  end
-
-  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_unarchive URI.parse(response['location'])
-      when Net::HTTPSuccess
-        Open3.popen2 'tar', '-C', target.to_path, archive_type, '-xv' 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
-      else
-        response.error!
-      end
-    end
-  end
-  target + root_directory
-end
-
-namespace :cross do
-  desc 'Build cross binutils'
-  task :binutils, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    options.tools.mkpath
-    source_directory = download_and_unarchive(
-      URI.parse("https://ftp.gnu.org/gnu/binutils/binutils-#{BINUTILS_VERSION}.tar.xz"),
-      options.tools)
-
-    cwd = source_directory.dirname + 'build-binutils'
-    cwd.mkpath
-    options.rootfs.mkpath
-
-    env = {
-     'CC' => options.gcc,
-     'CXX' => options.gxx
-    }
-    configure_options = [
-      "--prefix=#{options.rootfs.realpath}",
-      "--target=#{options.target}",
-      '--disable-nls',
-      '--enable-gprofng=no',
-      '--disable-werror',
-      '--enable-default-hash-style=gnu',
-      '--disable-libquadmath'
-    ]
-    configure = source_directory.relative_path_from(cwd) + 'configure'
-    sh env, configure.to_path, *configure_options, chdir: cwd.to_path
-    sh env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path
-    sh env, 'make', 'install', chdir: cwd.to_path
-  end
-
-  desc 'Build stage 1 GCC'
-  task :gcc1, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    options.tools.mkpath
-    source_directory = download_and_unarchive(
-      URI.parse("https://gcc.gnu.org/pub/gcc/releases/gcc-#{GCC_VERSION}/gcc-#{GCC_VERSION}.tar.xz"),
-      options.tools)
-
-    cwd = source_directory.dirname + 'build-gcc'
-    cwd.mkpath
-    options.rootfs.mkpath
-    options.sysroot.mkpath
-
-    sh 'contrib/download_prerequisites', chdir: source_directory.to_path
-    configure_options = [
-      "--prefix=#{options.rootfs.realpath}",
-      "--with-sysroot=#{options.sysroot.realpath}",
-      '--enable-languages=c,c++',
-      '--disable-shared',
-      '--with-arch=rv32imafdc',
-      '--with-abi=ilp32d',
-      '--with-tune=rocket',
-      '--with-isa-spec=20191213',
-      '--disable-bootstrap',
-      '--disable-multilib',
-      '--disable-libmudflap',
-      '--disable-libssp',
-      '--disable-libquadmath',
-      '--disable-libsanitizer',
-      '--disable-threads',
-      '--disable-libatomic',
-      '--disable-libgomp',
-      '--disable-libvtv',
-      '--disable-libstdcxx',
-      '--disable-nls',
-      '--with-newlib',
-      '--without-headers',
-      "--target=#{options.target}",
-      "--build=#{options.build}",
-      "--host=#{options.build}"
-    ]
-    flags = '-O2 -fPIC'
-    env = {
-      'CC' => options.gcc,
-      'CXX' => options.gxx,
-      'CFLAGS' => flags,
-      'CXXFLAGS' => flags,
-      'PATH' => "#{options.rootfs.realpath + 'bin'}:#{ENV['PATH']}"
-    }
-    configure = source_directory.relative_path_from(cwd) + 'configure'
-    sh env, configure.to_path, *configure_options, chdir: cwd.to_path
-    sh env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path
-    sh env, 'make', 'install', chdir: cwd.to_path
-  end
-
-  desc 'Copy glibc headers'
-  task :headers, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    options.tools.mkpath
-
-    source_directory = download_and_unarchive(
-      URI.parse("https://ftp.gnu.org/gnu/glibc/glibc-#{GLIBC_VERSION}.tar.xz"),
-      options.tools)
-    include_directory = options.tools + 'include'
-
-    include_directory.mkpath
-    cp (source_directory + 'elf/elf.h'), (include_directory + 'elf.h')
-  end
-
-  desc 'Build linux kernel'
-  task :kernel, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    options.tools.mkpath
-
-    cwd = download_and_unarchive(
-      URI.parse("https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-#{KERNEL_VERSION}.tar.xz"),
-      options.tools)
-
-    env = {
-      'CROSS_COMPILE' => "#{options.target}-",
-      'ARCH' => 'riscv',
-      'PATH' => "#{options.rootfs.realpath + 'bin'}:#{ENV['PATH']}",
-      'HOSTCFLAGS' => "-D_UUID_T -D__GETHOSTUUID_H -I#{options.tools.realpath + 'include'}"
-    }
-    sh env, 'make', 'rv32_defconfig', chdir: cwd.to_path
-    sh env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path
-    sh env, 'make', 'headers', chdir: cwd.to_path
-
-    user_directory = options.sysroot + 'usr'
-
-    user_directory.mkpath
-    cp_r (cwd + 'usr/include'), (user_directory + 'include')
-  end
-
-  desc 'Build glibc'
-  task :glibc, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    source_directory = options.tools + "glibc-#{GLIBC_VERSION}"
-    configure_options = [
-      '--prefix=/usr',
-      "--host=#{options.target}",
-      "--target=#{options.target}",
-      "--build=#{options.build}",
-      "--enable-kernel=#{KERNEL_VERSION}",
-      "--with-headers=#{options.sysroot.realpath + 'usr/include'}",
-      '--disable-nscd',
-      '--disable-libquadmath',
-      '--disable-libitm',
-      '--disable-werror',
-      'libc_cv_forced_unwind=yes'
-    ]
-    bin = options.rootfs.realpath + 'bin'
-    env = {
-      'PATH' => "#{bin}:#{ENV['PATH']}",
-      'MAKE' => 'make' # Otherwise it uses gnumake which can be different and too old.
-    }
-    cwd = source_directory.dirname + 'build-glibc'
-    cwd.mkpath
-
-    configure = source_directory.relative_path_from(cwd) +'./configure'
-    sh env, configure.to_path, *configure_options, chdir: cwd.to_path
-    sh env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path
-    sh env, 'make', "install_root=#{options.sysroot.realpath}", 'install', chdir: cwd.to_path
-  end
-
-  desc 'Build stage 2 GCC'
-  task :gcc2, [:target] do |_, args|
-    options = find_build_target GCC_VERSION, args
-    source_directory = options.tools + "gcc-#{GCC_VERSION}"
-    cwd = options.tools + 'build-gcc'
-
-    rm_rf cwd
-    cwd.mkpath
-
-    configure_options = [
-      "--prefix=#{options.rootfs.realpath}",
-      "--with-sysroot=#{options.sysroot.realpath}",
-      '--enable-languages=c,c++,lto',
-      '--enable-lto',
-      '--enable-shared',
-      '--with-arch=rv32imafdc',
-      '--with-abi=ilp32d',
-      '--with-tune=rocket',
-      '--with-isa-spec=20191213',
-      '--disable-bootstrap',
-      '--disable-multilib',
-      '--enable-checking=release',
-      '--disable-libssp',
-      '--disable-libquadmath',
-      '--enable-threads=posix',
-      '--with-default-libstdcxx-abi=new',
-      '--disable-nls',
-      "--target=#{options.target}",
-      "--build=#{options.build}",
-      "--host=#{options.build}"
-
-    ]
-    flags = '-O2 -fPIC'
-    env = {
-      'CFLAGS' => flags,
-      'CXXFLAGS' => flags,
-      'PATH' => "#{options.rootfs.realpath + 'bin'}:#{ENV['PATH']}"
-    }
-    configure = source_directory.relative_path_from(cwd) + 'configure'
-    sh env, configure.to_path, *configure_options, chdir: cwd.to_path
-    sh env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path
-    sh env, 'make', 'install', chdir: cwd.to_path
-  end
-end
-
-desc 'Build cross toolchain'
-task cross: [
-  'cross:binutils',
-  'cross:gcc1',
-  'cross:headers',
-  'cross:kernel',
-  'cross:glibc',
-  'cross:gcc2'
-] do
-end