#!/usr/bin/python3
# Build many configurations of glibc.
# Copyright (C) 2016 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# .
"""Build many configurations of glibc.
This script takes as arguments a directory name (containing a src
subdirectory with sources of the relevant toolchain components) and a
description of what to do: 'checkout', to check out sources into that
directory, 'host-libraries', to build libraries required by the
toolchain, 'compilers', to build cross-compilers for various
configurations, or 'glibcs', to build glibc for various configurations
and run the compilation parts of the testsuite. Subsequent arguments
name the versions of components to check out (-.
no_isolate = ('-fno-isolate-erroneous-paths-dereference'
' -fno-isolate-erroneous-paths-attribute')
self.add_config(arch='sh3',
os_name='linux-gnu',
glibcs=[{'ccopts': no_isolate}])
self.add_config(arch='sh3eb',
os_name='linux-gnu',
glibcs=[{'ccopts': no_isolate}])
self.add_config(arch='sh4',
os_name='linux-gnu',
glibcs=[{'ccopts': no_isolate}])
self.add_config(arch='sh4eb',
os_name='linux-gnu',
glibcs=[{'ccopts': no_isolate}])
self.add_config(arch='sh4',
os_name='linux-gnu',
variant='soft',
gcc_cfg=['--without-fp'],
glibcs=[{'variant': 'soft',
'cfg': ['--without-fp'],
'ccopts': no_isolate}])
self.add_config(arch='sh4eb',
os_name='linux-gnu',
variant='soft',
gcc_cfg=['--without-fp'],
glibcs=[{'variant': 'soft',
'cfg': ['--without-fp'],
'ccopts': no_isolate}])
self.add_config(arch='sparc64',
os_name='linux-gnu',
glibcs=[{},
{'arch': 'sparcv9',
'ccopts': '-m32 -mlong-double-128'}])
self.add_config(arch='tilegx',
os_name='linux-gnu',
glibcs=[{},
{'variant': '32', 'ccopts': '-m32'}])
self.add_config(arch='tilegxbe',
os_name='linux-gnu',
glibcs=[{},
{'variant': '32', 'ccopts': '-m32'}])
self.add_config(arch='tilepro',
os_name='linux-gnu')
self.add_config(arch='x86_64',
os_name='linux-gnu',
gcc_cfg=['--with-multilib-list=m64,m32,mx32'],
glibcs=[{},
{'variant': 'x32', 'ccopts': '-mx32'},
{'arch': 'i686', 'ccopts': '-m32 -march=i686'}],
extra_glibcs=[{'variant': 'disable-multi-arch',
'cfg': ['--disable-multi-arch']},
{'variant': 'disable-multi-arch',
'arch': 'i686',
'ccopts': '-m32 -march=i686',
'cfg': ['--disable-multi-arch']},
{'arch': 'i486',
'ccopts': '-m32 -march=i486'},
{'arch': 'i586',
'ccopts': '-m32 -march=i586'}])
def add_config(self, **args):
"""Add an individual build configuration."""
cfg = Config(self, **args)
if cfg.name in self.configs:
print('error: duplicate config %s' % cfg.name)
exit(1)
self.configs[cfg.name] = cfg
for c in cfg.all_glibcs:
if c.name in self.glibc_configs:
print('error: duplicate glibc config %s' % c.name)
exit(1)
self.glibc_configs[c.name] = c
def component_srcdir(self, component):
"""Return the source directory for a given component, e.g. gcc."""
return os.path.join(self.srcdir, component)
def component_builddir(self, action, config, component, subconfig=None):
"""Return the directory to use for a build."""
if config is None:
# Host libraries.
assert subconfig is None
return os.path.join(self.builddir, action, component)
if subconfig is None:
return os.path.join(self.builddir, action, config, component)
else:
# glibc build as part of compiler build.
return os.path.join(self.builddir, action, config, component,
subconfig)
def compiler_installdir(self, config):
"""Return the directory in which to install a compiler."""
return os.path.join(self.installdir, 'compilers', config)
def compiler_bindir(self, config):
"""Return the directory in which to find compiler binaries."""
return os.path.join(self.compiler_installdir(config), 'bin')
def compiler_sysroot(self, config):
"""Return the sysroot directory for a compiler."""
return os.path.join(self.compiler_installdir(config), 'sysroot')
def glibc_installdir(self, config):
"""Return the directory in which to install glibc."""
return os.path.join(self.installdir, 'glibcs', config)
def run_builds(self, action, configs):
"""Run the requested builds."""
if action == 'checkout':
self.checkout(configs)
return
elif action == 'host-libraries':
if configs:
print('error: configurations specified for host-libraries')
exit(1)
self.build_host_libraries()
elif action == 'compilers':
self.build_compilers(configs)
else:
self.build_glibcs(configs)
self.write_files()
self.do_build()
@staticmethod
def remove_dirs(*args):
"""Remove directories and their contents if they exist."""
for dir in args:
shutil.rmtree(dir, ignore_errors=True)
@staticmethod
def remove_recreate_dirs(*args):
"""Remove directories if they exist, and create them as empty."""
Context.remove_dirs(*args)
for dir in args:
os.makedirs(dir, exist_ok=True)
def add_makefile_cmdlist(self, target, cmdlist, logsdir):
"""Add makefile text for a list of commands."""
commands = cmdlist.makefile_commands(self.wrapper, logsdir)
self.makefile_pieces.append('all: %s\n.PHONY: %s\n%s:\n%s\n' %
(target, target, target, commands))
def write_files(self):
"""Write out the Makefile and wrapper script."""
mftext = ''.join(self.makefile_pieces)
with open(self.makefile, 'w') as f:
f.write(mftext)
wrapper_text = (
'#!/bin/sh\n'
'prev_base=$1\n'
'this_base=$2\n'
'desc=$3\n'
'dir=$4\n'
'path=$5\n'
'shift 5\n'
'prev_status=$prev_base-status.txt\n'
'this_status=$this_base-status.txt\n'
'this_log=$this_base-log.txt\n'
'date > "$this_log"\n'
'echo >> "$this_log"\n'
'echo "Description: $desc" >> "$this_log"\n'
'echo "Command: $*" >> "$this_log"\n'
'echo "Directory: $dir" >> "$this_log"\n'
'echo "Path addition: $path" >> "$this_log"\n'
'echo >> "$this_log"\n'
'record_status ()\n'
'{\n'
' echo >> "$this_log"\n'
' echo "$1: $desc" > "$this_status"\n'
' echo "$1: $desc" >> "$this_log"\n'
' echo >> "$this_log"\n'
' date >> "$this_log"\n'
' echo "$1: $desc"\n'
' exit 0\n'
'}\n'
'check_error ()\n'
'{\n'
' if [ "$1" != "0" ]; then\n'
' record_status FAIL\n'
' fi\n'
'}\n'
'if [ "$prev_base" ] && ! grep -q "^PASS" "$prev_status"; then\n'
' record_status UNRESOLVED\n'
'fi\n'
'if [ "$dir" ]; then\n'
' cd "$dir"\n'
' check_error "$?"\n'
'fi\n'
'if [ "$path" ]; then\n'
' PATH=$path:$PATH\n'
'fi\n'
'"$@" < /dev/null >> "$this_log" 2>&1\n'
'check_error "$?"\n'
'record_status PASS\n')
with open(self.wrapper, 'w') as f:
f.write(wrapper_text)
os.chmod(self.wrapper,
(stat.S_IRWXU|stat.S_IRGRP|stat.S_IXGRP|
stat.S_IROTH|stat.S_IXOTH))
save_logs_text = (
'#!/bin/sh\n'
'if ! [ -f tests.sum ]; then\n'
' echo "No test summary available."\n'
' exit 0\n'
'fi\n'
'save_file ()\n'
'{\n'
' echo "Contents of $1:"\n'
' echo\n'
' cat "$1"\n'
' echo\n'
' echo "End of contents of $1."\n'
' echo\n'
'}\n'
'save_file tests.sum\n'
'non_pass_tests=$(grep -v "^PASS: " tests.sum | sed -e "s/^PASS: //")\n'
'for t in $non_pass_tests; do\n'
' if [ -f "$t.out" ]; then\n'
' save_file "$t.out"\n'
' fi\n'
'done\n')
with open(self.save_logs, 'w') as f:
f.write(save_logs_text)
os.chmod(self.save_logs,
(stat.S_IRWXU|stat.S_IRGRP|stat.S_IXGRP|
stat.S_IROTH|stat.S_IXOTH))
def do_build(self):
"""Do the actual build."""
cmd = ['make', '-j%d' % self.parallelism]
subprocess.run(cmd, cwd=self.builddir, check=True)
def build_host_libraries(self):
"""Build the host libraries."""
installdir = self.host_libraries_installdir
builddir = os.path.join(self.builddir, 'host-libraries')
logsdir = os.path.join(self.logsdir, 'host-libraries')
self.remove_recreate_dirs(installdir, builddir, logsdir)
cmdlist = CommandList('host-libraries', self.keep)
self.build_host_library(cmdlist, 'gmp')
self.build_host_library(cmdlist, 'mpfr',
['--with-gmp=%s' % installdir])
self.build_host_library(cmdlist, 'mpc',
['--with-gmp=%s' % installdir,
'--with-mpfr=%s' % installdir])
cmdlist.add_command('done', ['touch', os.path.join(installdir, 'ok')])
self.add_makefile_cmdlist('host-libraries', cmdlist, logsdir)
def build_host_library(self, cmdlist, lib, extra_opts=None):
"""Build one host library."""
srcdir = self.component_srcdir(lib)
builddir = self.component_builddir('host-libraries', None, lib)
installdir = self.host_libraries_installdir
cmdlist.push_subdesc(lib)
cmdlist.create_use_dir(builddir)
cfg_cmd = [os.path.join(srcdir, 'configure'),
'--prefix=%s' % installdir,
'--disable-shared']
if extra_opts:
cfg_cmd.extend (extra_opts)
cmdlist.add_command('configure', cfg_cmd)
cmdlist.add_command('build', ['make'])
cmdlist.add_command('check', ['make', 'check'])
cmdlist.add_command('install', ['make', 'install'])
cmdlist.cleanup_dir()
cmdlist.pop_subdesc()
def build_compilers(self, configs):
"""Build the compilers."""
if not configs:
self.remove_dirs(os.path.join(self.builddir, 'compilers'))
self.remove_dirs(os.path.join(self.installdir, 'compilers'))
self.remove_dirs(os.path.join(self.logsdir, 'compilers'))
configs = sorted(self.configs.keys())
for c in configs:
self.configs[c].build()
def build_glibcs(self, configs):
"""Build the glibcs."""
if not configs:
self.remove_dirs(os.path.join(self.builddir, 'glibcs'))
self.remove_dirs(os.path.join(self.installdir, 'glibcs'))
self.remove_dirs(os.path.join(self.logsdir, 'glibcs'))
configs = sorted(self.glibc_configs.keys())
for c in configs:
self.glibc_configs[c].build()
def checkout(self, versions):
"""Check out the desired component versions."""
default_versions = {'binutils': 'vcs-2.27',
'gcc': 'vcs-6',
'glibc': 'vcs-mainline',
'gmp': '6.1.1',
'linux': '4.8.6',
'mpc': '1.0.3',
'mpfr': '3.1.5'}
use_versions = {}
for v in versions:
found_v = False
for k in default_versions.keys():
kx = k + '-'
if v.startswith(kx):
vx = v[len(kx):]
if k in use_versions:
print('error: multiple versions for %s' % k)
exit(1)
use_versions[k] = vx
found_v = True
break
if not found_v:
print('error: unknown component in %s' % v)
exit(1)
for k in default_versions.keys():
if k not in use_versions:
use_versions[k] = default_versions[k]
os.makedirs(self.srcdir, exist_ok=True)
for k in sorted(default_versions.keys()):
update = os.access(self.component_srcdir(k), os.F_OK)
v = use_versions[k]
if v.startswith('vcs-'):
self.checkout_vcs(k, v[4:], update)
else:
self.checkout_tar(k, v, update)
def checkout_vcs(self, component, version, update):
"""Check out the given version of the given component from version
control."""
if component == 'binutils':
git_url = 'git://sourceware.org/git/binutils-gdb.git'
if version == 'mainline':
git_branch = 'master'
else:
trans = str.maketrans({'.': '_'})
git_branch = 'binutils-%s-branch' % version.translate(trans)
self.git_checkout(component, git_url, git_branch, update)
elif component == 'gcc':
if version == 'mainline':
branch = 'trunk'
else:
trans = str.maketrans({'.': '_'})
branch = 'branches/gcc-%s-branch' % version.translate(trans)
svn_url = 'svn://gcc.gnu.org/svn/gcc/%s' % branch
self.gcc_checkout(svn_url, update)
elif component == 'glibc':
git_url = 'git://sourceware.org/git/glibc.git'
if version == 'mainline':
git_branch = 'master'
else:
git_branch = 'release/%s/master' % version
self.git_checkout(component, git_url, git_branch, update)
self.fix_glibc_timestamps()
else:
print('error: component %s coming from VCS' % component)
exit(1)
def git_checkout(self, component, git_url, git_branch, update):
"""Check out a component from git."""
if update:
subprocess.run(['git', 'remote', 'prune', 'origin'],
cwd=self.component_srcdir(component), check=True)
subprocess.run(['git', 'pull', '-q'],
cwd=self.component_srcdir(component), check=True)
else:
subprocess.run(['git', 'clone', '-q', '-b', git_branch, git_url,
self.component_srcdir(component)], check=True)
def fix_glibc_timestamps(self):
"""Fix timestamps in a glibc checkout."""
# Ensure that builds do not try to regenerate generated files
# in the source tree.
srcdir = self.component_srcdir('glibc')
for dirpath, dirnames, filenames in os.walk(srcdir):
for f in filenames:
if (f == 'configure' or
f == 'preconfigure' or
f.endswith('-kw.h')):
to_touch = os.path.join(dirpath, f)
subprocess.run(['touch', to_touch], check=True)
def gcc_checkout(self, svn_url, update):
"""Check out GCC from SVN."""
if not update:
subprocess.run(['svn', 'co', '-q', svn_url,
self.component_srcdir('gcc')], check=True)
subprocess.run(['contrib/gcc_update', '--silent'],
cwd=self.component_srcdir('gcc'), check=True)
def checkout_tar(self, component, version, update):
"""Check out the given version of the given component from a
tarball."""
if update:
return
url_map = {'binutils': 'https://ftp.gnu.org/gnu/binutils/binutils-%(version)s.tar.bz2',
'gcc': 'https://ftp.gnu.org/gnu/gcc/gcc-%(version)s/gcc-%(version)s.tar.bz2',
'gmp': 'https://ftp.gnu.org/gnu/gmp/gmp-%(version)s.tar.xz',
'linux': 'https://www.kernel.org/pub/linux/kernel/v4.x/linux-%(version)s.tar.xz',
'mpc': 'https://ftp.gnu.org/gnu/mpc/mpc-%(version)s.tar.gz',
'mpfr': 'https://ftp.gnu.org/gnu/mpfr/mpfr-%(version)s.tar.xz'}
if component not in url_map:
print('error: component %s coming from tarball' % component)
exit(1)
url = url_map[component] % {'version': version}
filename = os.path.join(self.srcdir, url.split('/')[-1])
response = urllib.request.urlopen(url)
data = response.read()
with open(filename, 'wb') as f:
f.write(data)
subprocess.run(['tar', '-C', self.srcdir, '-x', '-f', filename],
check=True)
os.rename(os.path.join(self.srcdir, '%s-%s' % (component, version)),
self.component_srcdir(component))
os.remove(filename)
class Config:
"""A configuration for building a compiler and associated libraries."""
def __init__(self, ctx, arch, os_name, variant=None, gcc_cfg=None,
first_gcc_cfg=None, glibcs=None, extra_glibcs=None):
"""Initialize a Config object."""
self.ctx = ctx
self.arch = arch
self.os = os_name
self.variant = variant
if variant is None:
self.name = '%s-%s' % (arch, os_name)
else:
self.name = '%s-%s-%s' % (arch, os_name, variant)
self.triplet = '%s-glibc-%s' % (arch, os_name)
if gcc_cfg is None:
self.gcc_cfg = []
else:
self.gcc_cfg = gcc_cfg
if first_gcc_cfg is None:
self.first_gcc_cfg = []
else:
self.first_gcc_cfg = first_gcc_cfg
if glibcs is None:
glibcs = [{'variant': variant}]
if extra_glibcs is None:
extra_glibcs = []
glibcs = [Glibc(self, **g) for g in glibcs]
extra_glibcs = [Glibc(self, **g) for g in extra_glibcs]
self.all_glibcs = glibcs + extra_glibcs
self.compiler_glibcs = glibcs
self.installdir = ctx.compiler_installdir(self.name)
self.bindir = ctx.compiler_bindir(self.name)
self.sysroot = ctx.compiler_sysroot(self.name)
self.builddir = os.path.join(ctx.builddir, 'compilers', self.name)
self.logsdir = os.path.join(ctx.logsdir, 'compilers', self.name)
def component_builddir(self, component):
"""Return the directory to use for a (non-glibc) build."""
return self.ctx.component_builddir('compilers', self.name, component)
def build(self):
"""Generate commands to build this compiler."""
self.ctx.remove_recreate_dirs(self.installdir, self.builddir,
self.logsdir)
cmdlist = CommandList('compilers-%s' % self.name, self.ctx.keep)
cmdlist.add_command('check-host-libraries',
['test', '-f',
os.path.join(self.ctx.host_libraries_installdir,
'ok')])
cmdlist.use_path(self.bindir)
self.build_cross_tool(cmdlist, 'binutils', 'binutils',
['--disable-gdb',
'--disable-libdecnumber',
'--disable-readline',
'--disable-sim'])
if self.os.startswith('linux'):
self.install_linux_headers(cmdlist)
self.build_gcc(cmdlist, True)
for g in self.compiler_glibcs:
cmdlist.push_subdesc('glibc')
cmdlist.push_subdesc(g.name)
g.build_glibc(cmdlist, True)
cmdlist.pop_subdesc()
cmdlist.pop_subdesc()
self.build_gcc(cmdlist, False)
cmdlist.add_command('done', ['touch',
os.path.join(self.installdir, 'ok')])
self.ctx.add_makefile_cmdlist('compilers-%s' % self.name, cmdlist,
self.logsdir)
def build_cross_tool(self, cmdlist, tool_src, tool_build, extra_opts=None):
"""Build one cross tool."""
srcdir = self.ctx.component_srcdir(tool_src)
builddir = self.component_builddir(tool_build)
cmdlist.push_subdesc(tool_build)
cmdlist.create_use_dir(builddir)
cfg_cmd = [os.path.join(srcdir, 'configure'),
'--prefix=%s' % self.installdir,
'--build=%s' % self.ctx.build_triplet,
'--host=%s' % self.ctx.build_triplet,
'--target=%s' % self.triplet,
'--with-sysroot=%s' % self.sysroot]
if extra_opts:
cfg_cmd.extend(extra_opts)
cmdlist.add_command('configure', cfg_cmd)
cmdlist.add_command('build', ['make'])
cmdlist.add_command('install', ['make', 'install'])
cmdlist.cleanup_dir()
cmdlist.pop_subdesc()
def install_linux_headers(self, cmdlist):
"""Install Linux kernel headers."""
arch_map = {'aarch64': 'arm64',
'alpha': 'alpha',
'arm': 'arm',
'hppa': 'parisc',
'i486': 'x86',
'i586': 'x86',
'i686': 'x86',
'i786': 'x86',
'ia64': 'ia64',
'm68k': 'm68k',
'microblaze': 'microblaze',
'mips': 'mips',
'nios2': 'nios2',
'powerpc': 'powerpc',
's390': 's390',
'sh': 'sh',
'sparc': 'sparc',
'tile': 'tile',
'x86_64': 'x86'}
linux_arch = None
for k in arch_map:
if self.arch.startswith(k):
linux_arch = arch_map[k]
break
assert linux_arch is not None
srcdir = self.ctx.component_srcdir('linux')
builddir = self.component_builddir('linux')
headers_dir = os.path.join(self.sysroot, 'usr')
cmdlist.push_subdesc('linux')
cmdlist.create_use_dir(builddir)
cmdlist.add_command('install-headers',
['make', '-C', srcdir, 'O=%s' % builddir,
'ARCH=%s' % linux_arch,
'INSTALL_HDR_PATH=%s' % headers_dir,
'headers_install'])
cmdlist.cleanup_dir()
cmdlist.pop_subdesc()
def build_gcc(self, cmdlist, bootstrap):
"""Build GCC."""
# libsanitizer commonly breaks because of glibc header
# changes, or on unusual targets. libssp is of little
# relevance with glibc's own stack checking support.
cfg_opts = list(self.gcc_cfg)
cfg_opts += ['--disable-libsanitizer', '--disable-libssp']
if bootstrap:
tool_build = 'gcc-first'
# Building a static-only, C-only compiler that is
# sufficient to build glibc. Various libraries and
# features that may require libc headers must be disabled.
# When configuring with a sysroot, --with-newlib is
# required to define inhibit_libc (to stop some parts of
# libgcc including libc headers); --without-headers is not
# sufficient.
cfg_opts += ['--enable-languages=c', '--disable-shared',
'--disable-threads',
'--disable-libatomic',
'--disable-decimal-float',
'--disable-libffi',
'--disable-libgomp',
'--disable-libitm',
'--disable-libmpx',
'--disable-libquadmath',
'--without-headers', '--with-newlib',
'--with-glibc-version=%s' % self.ctx.glibc_version
]
cfg_opts += self.first_gcc_cfg
else:
tool_build = 'gcc'
cfg_opts += ['--enable-languages=c,c++', '--enable-shared',
'--enable-threads']
self.build_cross_tool(cmdlist, 'gcc', tool_build, cfg_opts)
class Glibc:
"""A configuration for building glibc."""
def __init__(self, compiler, arch=None, os_name=None, variant=None,
cfg=None, ccopts=None):
"""Initialize a Glibc object."""
self.ctx = compiler.ctx
self.compiler = compiler
if arch is None:
self.arch = compiler.arch
else:
self.arch = arch
if os_name is None:
self.os = compiler.os
else:
self.os = os_name
self.variant = variant
if variant is None:
self.name = '%s-%s' % (self.arch, self.os)
else:
self.name = '%s-%s-%s' % (self.arch, self.os, variant)
self.triplet = '%s-glibc-%s' % (self.arch, self.os)
if cfg is None:
self.cfg = []
else:
self.cfg = cfg
self.ccopts = ccopts
def tool_name(self, tool):
"""Return the name of a cross-compilation tool."""
ctool = '%s-%s' % (self.compiler.triplet, tool)
if self.ccopts and (tool == 'gcc' or tool == 'g++'):
ctool = '%s %s' % (ctool, self.ccopts)
return ctool
def build(self):
"""Generate commands to build this glibc."""
builddir = self.ctx.component_builddir('glibcs', self.name, 'glibc')
installdir = self.ctx.glibc_installdir(self.name)
logsdir = os.path.join(self.ctx.logsdir, 'glibcs', self.name)
self.ctx.remove_recreate_dirs(installdir, builddir, logsdir)
cmdlist = CommandList('glibcs-%s' % self.name, self.ctx.keep)
cmdlist.add_command('check-compilers',
['test', '-f',
os.path.join(self.compiler.installdir, 'ok')])
cmdlist.use_path(self.compiler.bindir)
self.build_glibc(cmdlist, False)
self.ctx.add_makefile_cmdlist('glibcs-%s' % self.name, cmdlist,
logsdir)
def build_glibc(self, cmdlist, for_compiler):
"""Generate commands to build this glibc, either as part of a compiler
build or with the bootstrapped compiler (and in the latter case, run
tests as well)."""
srcdir = self.ctx.component_srcdir('glibc')
if for_compiler:
builddir = self.ctx.component_builddir('compilers',
self.compiler.name, 'glibc',
self.name)
installdir = self.compiler.sysroot
srcdir_copy = self.ctx.component_builddir('compilers',
self.compiler.name,
'glibc-src',
self.name)
else:
builddir = self.ctx.component_builddir('glibcs', self.name,
'glibc')
installdir = self.ctx.glibc_installdir(self.name)
srcdir_copy = self.ctx.component_builddir('glibcs', self.name,
'glibc-src')
cmdlist.create_use_dir(builddir)
# glibc builds write into the source directory, and even if
# not intentionally there is a risk of bugs that involve
# writing into the working directory. To avoid possible
# concurrency issues, copy the source directory.
cmdlist.create_copy_dir(srcdir, srcdir_copy)
cfg_cmd = [os.path.join(srcdir_copy, 'configure'),
'--prefix=/usr',
'--enable-add-ons',
'--build=%s' % self.ctx.build_triplet,
'--host=%s' % self.triplet,
'CC=%s' % self.tool_name('gcc'),
'CXX=%s' % self.tool_name('g++'),
'AR=%s' % self.tool_name('ar'),
'AS=%s' % self.tool_name('as'),
'LD=%s' % self.tool_name('ld'),
'NM=%s' % self.tool_name('nm'),
'OBJCOPY=%s' % self.tool_name('objcopy'),
'OBJDUMP=%s' % self.tool_name('objdump'),
'RANLIB=%s' % self.tool_name('ranlib'),
'READELF=%s' % self.tool_name('readelf'),
'STRIP=%s' % self.tool_name('strip')]
cfg_cmd += self.cfg
cmdlist.add_command('configure', cfg_cmd)
cmdlist.add_command('build', ['make'])
cmdlist.add_command('install', ['make', 'install',
'install_root=%s' % installdir])
# GCC uses paths such as lib/../lib64, so make sure lib
# directories always exist.
cmdlist.add_command('mkdir-lib', ['mkdir', '-p',
os.path.join(installdir, 'lib'),
os.path.join(installdir,
'usr', 'lib')])
if not for_compiler:
cmdlist.add_command('check', ['make', 'check'])
cmdlist.add_command('save-logs', [self.ctx.save_logs],
always_run=True)
cmdlist.cleanup_dir('cleanup-src', srcdir_copy)
cmdlist.cleanup_dir()
class Command:
"""A command run in the build process."""
def __init__(self, desc, num, dir, path, command, always_run=False):
"""Initialize a Command object."""
self.dir = dir
self.path = path
self.desc = desc
trans = str.maketrans({' ': '-'})
self.logbase = '%03d-%s' % (num, desc.translate(trans))
self.command = command
self.always_run = always_run
@staticmethod
def shell_make_quote_string(s):
"""Given a string not containing a newline, quote it for use by the
shell and make."""
assert '\n' not in s
if re.fullmatch('[]+,./0-9@A-Z_a-z-]+', s):
return s
strans = str.maketrans({"'": "'\\''"})
s = "'%s'" % s.translate(strans)
mtrans = str.maketrans({'$': '$$'})
return s.translate(mtrans)
@staticmethod
def shell_make_quote_list(l, translate_make):
"""Given a list of strings not containing newlines, quote them for use
by the shell and make, returning a single string. If translate_make
is true and the first string is 'make', change it to $(MAKE)."""
l = [Command.shell_make_quote_string(s) for s in l]
if translate_make and l[0] == 'make':
l[0] = '$(MAKE)'
return ' '.join(l)
def shell_make_quote(self):
"""Return this command quoted for the shell and make."""
return self.shell_make_quote_list(self.command, True)
class CommandList:
"""A list of commands run in the build process."""
def __init__(self, desc, keep):
"""Initialize a CommandList object."""
self.cmdlist = []
self.dir = None
self.path = None
self.desc = [desc]
self.keep = keep
def desc_txt(self, desc):
"""Return the description to use for a command."""
return '%s %s' % (' '.join(self.desc), desc)
def use_dir(self, dir):
"""Set the default directory for subsequent commands."""
self.dir = dir
def use_path(self, path):
"""Set a directory to be prepended to the PATH for subsequent
commands."""
self.path = path
def push_subdesc(self, subdesc):
"""Set the default subdescription for subsequent commands (e.g., the
name of a component being built, within the series of commands
building it)."""
self.desc.append(subdesc)
def pop_subdesc(self):
"""Pop a subdescription from the list of descriptions."""
self.desc.pop()
def create_use_dir(self, dir):
"""Remove and recreate a directory and use it for subsequent
commands."""
self.add_command_dir('rm', None, ['rm', '-rf', dir])
self.add_command_dir('mkdir', None, ['mkdir', '-p', dir])
self.use_dir(dir)
def create_copy_dir(self, src, dest):
"""Remove a directory and recreate it as a copy from the given
source."""
self.add_command_dir('copy-rm', None, ['rm', '-rf', dest])
parent = os.path.dirname(dest)
self.add_command_dir('copy-mkdir', None, ['mkdir', '-p', parent])
self.add_command_dir('copy', None, ['cp', '-a', src, dest])
def add_command_dir(self, desc, dir, command, always_run=False):
"""Add a command to run in a given directory."""
cmd = Command(self.desc_txt(desc), len(self.cmdlist), dir, self.path,
command, always_run)
self.cmdlist.append(cmd)
def add_command(self, desc, command, always_run=False):
"""Add a command to run in the default directory."""
cmd = Command(self.desc_txt(desc), len(self.cmdlist), self.dir,
self.path, command, always_run)
self.cmdlist.append(cmd)
def cleanup_dir(self, desc='cleanup', dir=None):
"""Clean up a build directory. If no directory is specified, the
default directory is cleaned up and ceases to be the default
directory."""
if dir is None:
dir = self.dir
self.use_dir(None)
if self.keep != 'all':
self.add_command_dir(desc, None, ['rm', '-rf', dir],
always_run=(self.keep == 'none'))
def makefile_commands(self, wrapper, logsdir):
"""Return the sequence of commands in the form of text for a Makefile.
The given wrapper script takes arguments: base of logs for
previous command, or empty; base of logs for this command;
description; directory; PATH addition; the command itself."""
# prev_base is the base of the name for logs of the previous
# command that is not always-run (that is, a build command,
# whose failure should stop subsequent build commands from
# being run, as opposed to a cleanup command, which is run
# even if previous commands failed).
prev_base = ''
cmds = []
for c in self.cmdlist:
ctxt = c.shell_make_quote()
if prev_base and not c.always_run:
prev_log = os.path.join(logsdir, prev_base)
else:
prev_log = ''
this_log = os.path.join(logsdir, c.logbase)
if not c.always_run:
prev_base = c.logbase
if c.dir is None:
dir = ''
else:
dir = c.dir
if c.path is None:
path = ''
else:
path = c.path
prelims = [wrapper, prev_log, this_log, c.desc, dir, path]
prelim_txt = Command.shell_make_quote_list(prelims, False)
cmds.append('\t@%s %s' % (prelim_txt, ctxt))
return '\n'.join(cmds)
def get_parser():
"""Return an argument parser for this module."""
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('-j', dest='parallelism',
help='Run this number of jobs in parallel',
type=int, default=os.cpu_count())
parser.add_argument('--keep', dest='keep',
help='Whether to keep all build directories, '
'none or only those from failed builds',
default='none', choices=('none', 'all', 'failed'))
parser.add_argument('topdir',
help='Toplevel working directory')
parser.add_argument('action',
help='What to do',
choices=('checkout', 'host-libraries', 'compilers',
'glibcs'))
parser.add_argument('configs',
help='Versions to check out or configurations to build',
nargs='*')
return parser
def main(argv):
"""The main entry point."""
parser = get_parser()
opts = parser.parse_args(argv)
topdir = os.path.abspath(opts.topdir)
ctx = Context(topdir, opts.parallelism, opts.keep, opts.action)
ctx.run_builds(opts.action, opts.configs)
if __name__ == '__main__':
main(sys.argv[1:])