Use GNU mirrors
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@@ -21,33 +21,42 @@ GCC_VERSION = "15.1.0"
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TMP = Pathname.new('./tmp')
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class BuildTarget
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attr_accessor(:build, :gcc, :target, :tmp)
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def gxx
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@gcc.gsub 'c', '+'
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def initialize(architecture)
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case architecture
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when /^r(isc)?v32$/
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@architecture = :rv32
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else
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raise "Unsupported architecture '#{architecture}'."
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end
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end
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def sysroot
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tmp + 'sysroot'
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TMP + 'sysroot'
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end
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def rootfs
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tmp + 'rootfs'
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TMP + 'rootfs'
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end
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def tools
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tmp + 'tools'
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def target
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case @architecture
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when :rv32
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'riscv32-unknown-linux-gnu'
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end
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end
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def configuration
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case target
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when /^riscv[[:digit:]]+-/
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[
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'--with-arch=rv32imafdc',
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'--with-abi=ilp32d',
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'--with-tune=rocket',
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'--with-isa-spec=20191213'
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]
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def build
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@build ||= gcc_verbose(ENV['CC']).lines
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.find { |line| line.start_with? 'Target: ' }
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.split(' ').last.strip
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end
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def configuration(prefix)
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case @architecture
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when :rv32
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['arch=rv32imafdc', 'abi=ilp32d', 'tune=rocket', 'isa-spec=20191213'].map do |option|
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"-#{prefix}#{option}"
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end
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else
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[]
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end
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@@ -63,29 +72,7 @@ def gcc_verbose(gcc_binary)
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output
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end
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def find_build_target(gcc_version, target)
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gcc_binary = 'gcc'
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output = gcc_verbose gcc_binary
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if output.start_with? 'Apple clang'
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gcc_binary = "gcc-#{gcc_version.split('.').first}"
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output = gcc_verbose gcc_binary
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end
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result = output
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.lines
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.each_with_object(BuildTarget.new) do |line, accumulator|
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if line.start_with? 'Target: '
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accumulator.build = line.split(' ').last.strip
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elsif line.start_with? 'COLLECT_GCC'
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accumulator.gcc = line.split('=').last.strip
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end
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end
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result.tmp = TMP
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result.target = target
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result
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end
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def download_and_unarchive(url, target)
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def download_and_unarchive(url)
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puts Term::ANSIColor.green "Downloading #{url}."
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case File.extname url.path
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@@ -98,7 +85,7 @@ def download_and_unarchive(url, target)
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else
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raise "Unsupported archive type #{url.path}."
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end
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target = TMP + 'tools'
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Net::HTTP.start(url.host, url.port, use_ssl: url.scheme == 'https') do |http|
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request = Net::HTTP::Get.new url.request_uri
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@@ -134,23 +121,33 @@ def configure_make_install(source_directory, configure_options, env, cwd)
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system env, 'make', 'install', chdir: cwd.to_path, exception: true
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end
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def environment
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binary_suffix = ''
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output = gcc_verbose 'gcc'
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if output.start_with? 'Apple clang'
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binary_suffix = "-#{GCC_VERSION.split('.').first}"
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end
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ENV['CC'] = "gcc#{binary_suffix}"
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ENV['CXX'] = "g++#{binary_suffix}"
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end
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# Build cross binutils.
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def binutils(options)
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source_directory = download_and_unarchive(
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URI.parse("https://ftp.gnu.org/gnu/binutils/binutils-#{BINUTILS_VERSION}.tar.xz"),
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options.tools)
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URI.parse("https://ftpmirror.gnu.org/gnu/binutils/binutils-#{BINUTILS_VERSION}.tar.xz"))
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cwd = source_directory.dirname + 'build-binutils'
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cwd.mkpath
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options.rootfs.mkpath
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options.sysroot.mkpath
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env = {
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'CC' => options.gcc,
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'CXX' => options.gxx
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}
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env = ENV.slice 'CC', 'CXX'
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configure_options = [
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"--prefix=#{options.rootfs.realpath}",
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"--target=#{options.target}",
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"--with-sysroot=#{options.sysroot.realpath}",
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'--disable-nls',
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'--enable-gprofng=no',
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'--disable-werror',
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@@ -163,16 +160,14 @@ end
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# Build stage 1 GCC.
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def gcc1(options)
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source_directory = download_and_unarchive(
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URI.parse("https://gcc.gnu.org/pub/gcc/releases/gcc-#{GCC_VERSION}/gcc-#{GCC_VERSION}.tar.xz"),
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options.tools)
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URI.parse("https://gcc.gnu.org/pub/gcc/releases/gcc-#{GCC_VERSION}/gcc-#{GCC_VERSION}.tar.xz"))
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cwd = source_directory.dirname + 'build-gcc'
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cwd.mkpath
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options.rootfs.mkpath
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options.sysroot.mkpath
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system 'contrib/download_prerequisites', chdir: source_directory.to_path, exception: true
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configure_options = options.configuration + [
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configure_options = options.configuration('-with-') + [
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"--prefix=#{options.rootfs.realpath}",
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"--with-sysroot=#{options.sysroot.realpath}",
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'--enable-languages=c,c++',
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@@ -197,8 +192,8 @@ def gcc1(options)
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]
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flags = '-O2 -fPIC'
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env = {
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'CC' => options.gcc,
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'CXX' => options.gxx,
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'CC' => ENV['CC'],
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'CXX' => ENV['CXX'],
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'CFLAGS' => flags,
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'CXXFLAGS' => flags,
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'PATH' => "#{options.rootfs.realpath + 'bin'}:#{ENV['PATH']}"
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@@ -209,9 +204,8 @@ end
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# Copy glibc headers.
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def headers(options)
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source_directory = download_and_unarchive(
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URI.parse("https://ftp.gnu.org/gnu/glibc/glibc-#{GLIBC_VERSION}.tar.xz"),
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options.tools)
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include_directory = options.tools + 'include'
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URI.parse("https://ftpmirror.gnu.org/gnu/glibc/glibc-#{GLIBC_VERSION}.tar.xz"))
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include_directory = TMP + 'tools/include'
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include_directory.mkpath
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FileUtils.cp (source_directory + 'elf/elf.h'), (include_directory + 'elf.h')
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@@ -220,17 +214,16 @@ end
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# Build linux kernel.
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def kernel(options)
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cwd = download_and_unarchive(
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URI.parse("https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-#{KERNEL_VERSION}.tar.xz"),
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options.tools)
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URI.parse("https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-#{KERNEL_VERSION}.tar.xz"))
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env = {
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'CROSS_COMPILE' => "#{options.target}-",
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'ARCH' => 'riscv',
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'PATH' => "#{options.rootfs.realpath + 'bin'}:#{ENV['PATH']}",
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'HOSTCFLAGS' => "-D_UUID_T -D__GETHOSTUUID_H -I#{options.tools.realpath + 'include'}"
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'HOSTCFLAGS' => "-D_UUID_T -D__GETHOSTUUID_H -I#{TMP + 'tools/include'}"
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}
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system env, 'make', 'rv32_defconfig', chdir: cwd.to_path, exception: true
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system env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path, exception: true
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# system env, 'make', '-j', Etc.nprocessors.to_s, chdir: cwd.to_path, exception: true
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system env, 'make', 'headers', chdir: cwd.to_path, exception: true
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user_directory = options.sysroot + 'usr'
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@@ -241,7 +234,7 @@ end
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# Build glibc.
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def glibc(options)
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source_directory = options.tools + "glibc-#{GLIBC_VERSION}"
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source_directory = TMP + "tools/glibc-#{GLIBC_VERSION}"
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configure_options = [
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'--prefix=/usr',
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"--host=#{options.target}",
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@@ -258,7 +251,9 @@ def glibc(options)
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bin = options.rootfs.realpath + 'bin'
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env = {
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'PATH' => "#{bin}:#{ENV['PATH']}",
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'MAKE' => 'make' # Otherwise it uses gnumake which can be different and too old.
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'MAKE' => 'make', # Otherwise it uses gnumake which can be different and too old.
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'CC' => "#{options.target}-gcc",
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'CXX' => "#{options.target}-g++"
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}
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cwd = source_directory.dirname + 'build-glibc'
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cwd.mkpath
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@@ -271,13 +266,13 @@ end
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# Build stage 2 GCC.
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def gcc2(options)
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source_directory = options.tools + "gcc-#{GCC_VERSION}"
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cwd = options.tools + 'build-gcc'
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source_directory = TMP + "tools/gcc-#{GCC_VERSION}"
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cwd = TMP + 'tools/build-gcc'
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FileUtils.rm_rf cwd
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cwd.mkpath
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configure_options = options.configuration + [
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configure_options = options.configuration('-with-') + [
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"--prefix=#{options.rootfs.realpath}",
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"--with-sysroot=#{options.sysroot.realpath}",
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'--enable-languages=c,c++,lto',
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@@ -294,9 +289,8 @@ def gcc2(options)
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"--target=#{options.target}",
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"--build=#{options.build}",
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"--host=#{options.build}"
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]
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flags = '-O2 -fPIC'
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flags = '-O2 -fPIC -I/opt/homebrew/opt/flex/include'
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env = {
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'CFLAGS' => flags,
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'CXXFLAGS' => flags,
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@@ -305,10 +299,12 @@ def gcc2(options)
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configure_make_install source_directory, configure_options, env, cwd
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end
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target = ARGV.fetch 0, 'riscv32-unknown-linux-gnu'
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options = find_build_target GCC_VERSION, target
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target = ARGV.fetch 0, 'riscv32'
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options = BuildTarget.new target
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(TMP + 'tools').mkpath
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environment
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options.tools.mkpath
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binutils options
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gcc1 options
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headers options
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