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Re: RFC: script to build many glibc configurations
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Fri, 4 Nov 2016 13:43:13 +0000
- Subject: Re: RFC: script to build many glibc configurations
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1611030033460.23365@digraph.polyomino.org.uk>
I've attached an updated version of the script. This one covers
(hopefully) all GNU/Linux ABIs. (Hurd and NaCl support would be a good
idea, but that would need people familiar with those systems to advise on
the right build process / equivalent of Linux kernel headers, and I'm not
sure if Hurd is yet meant to build cleanly from unmodified glibc sources.)
There is a --keep option to control keeping around build directories; as
well as the default --keep=none, you can use --keep=failed to keep build
directories from failed builds, or --keep=all to keep all build
directories. In any case, after glibc tests are run, if those got to the
point of generating tests.sum then a following step will put the contents
of tests.sum and the .out files for non-PASS tests into its own log so
those remain available after the build directory is cleaned up.
With GCC 5 branch and binutils mainline I get the following failures in
the compilers stage (and rather more in the glibc stage that I still need
to investigate):
FAIL: compilers-ia64-linux-gnu gcc-first build
System headers required for building libgcc, need to see if fixed in
newer GCC.
FAIL: compilers-m68k-linux-gnu-coldfire gcc-first build
ICE building libgcc, need to see if fixed in newer GCC.
FAIL: compilers-sh3eb-linux-gnu glibc sh3eb-linux-gnu build
FAIL: compilers-sh4-linux-gnu-soft glibc sh4-linux-gnu-soft build
FAIL: compilers-sh4eb-linux-gnu-soft glibc sh4eb-linux-gnu-soft build
FAIL: compilers-sh4eb-linux-gnu glibc sh4eb-linux-gnu build
SH4 soft-float: ucontext issues processing ucontext_i.sym. Big-endian:
symptom (multiple definitions of various symbols) is the same as
resulted from missing __builtin_trap support, see
<https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216>, but the
-fno-isolate-erroneous-paths-* options don't seem sufficient to avoid it
for some reason.
FAIL: compilers-tilegx-linux-gnu gcc build
FAIL: compilers-tilegxbe-linux-gnu gcc build
lib directory used for both 32-bit and 64-bit libraries (glibc install
inconsistent with GCC expectations).
--
Joseph S. Myers
joseph@codesourcery.com
#!/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
# <http://www.gnu.org/licenses/>.
"""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: '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 configurations for which compilers or glibc
are to be built.
"""
import argparse
import os
import os.path
import re
import shutil
import stat
import subprocess
import sys
class Context:
"""The global state associated with builds in a given directory."""
def __init__(self, topdir, parallelism, keep):
"""Initialize the context."""
self.topdir = topdir
self.parallelism = parallelism
self.keep = keep
self.srcdir = os.path.join(topdir, 'src')
self.installdir = os.path.join(topdir, 'install')
self.host_libraries_installdir = os.path.join(self.installdir,
'host-libraries')
self.builddir = os.path.join(topdir, 'build')
self.logsdir = os.path.join(topdir, 'logs')
self.makefile = os.path.join(self.builddir, 'Makefile')
self.wrapper = os.path.join(self.builddir, 'wrapper')
self.save_logs = os.path.join(self.builddir, 'save-logs')
self.build_triplet = self.get_build_triplet()
self.glibc_version = self.get_glibc_version()
self.configs = {}
self.glibc_configs = {}
self.makefile_pieces = ['.PHONY: all\n']
self.add_all_configs()
def get_build_triplet(self):
"""Determine the build triplet with config.guess."""
config_guess = os.path.join(self.component_srcdir('gcc'),
'config.guess')
cg_out = subprocess.run([config_guess], stdout=subprocess.PIPE,
check=True, universal_newlines=True).stdout
return cg_out.rstrip()
def get_glibc_version(self):
"""Determine the glibc version number (major.minor)."""
version_h = os.path.join(self.component_srcdir('glibc'), 'version.h')
with open(version_h, 'r') as f:
lines = f.readlines()
starttext = '#define VERSION "'
for l in lines:
if l.startswith(starttext):
l = l[len(starttext):]
l = l.rstrip('"\n')
m = re.fullmatch('([0-9]+)\.([0-9]+)[.0-9]*', l)
return '%s.%s' % m.group(1, 2)
print('error: could not determine glibc version')
exit(1)
def add_all_configs(self):
"""Add all known glibc build configurations."""
self.add_config(arch='aarch64',
os_name='linux-gnu')
self.add_config(arch='aarch64_be',
os_name='linux-gnu')
self.add_config(arch='alpha',
os_name='linux-gnu')
self.add_config(arch='arm',
os_name='linux-gnueabi')
self.add_config(arch='armeb',
os_name='linux-gnueabi')
self.add_config(arch='armeb',
os_name='linux-gnueabi',
variant='be8',
gcc_cfg=['--with-arch=armv7-a'])
self.add_config(arch='arm',
os_name='linux-gnueabihf')
self.add_config(arch='armeb',
os_name='linux-gnueabihf')
self.add_config(arch='armeb',
os_name='linux-gnueabihf',
variant='be8',
gcc_cfg=['--with-arch=armv7-a'])
self.add_config(arch='hppa',
os_name='linux-gnu')
self.add_config(arch='ia64',
os_name='linux-gnu')
self.add_config(arch='m68k',
os_name='linux-gnu')
self.add_config(arch='m68k',
os_name='linux-gnu',
variant='coldfire',
gcc_cfg=['--with-arch=cf'])
self.add_config(arch='microblaze',
os_name='linux-gnu')
self.add_config(arch='microblazeel',
os_name='linux-gnu')
self.add_config(arch='mips64',
os_name='linux-gnu',
gcc_cfg=['--with-mips-plt'],
glibcs=[{'variant': 'n32'},
{'arch': 'mips',
'ccopts': '-mabi=32'},
{'variant': 'n64',
'ccopts': '-mabi=64'}])
self.add_config(arch='mips64',
os_name='linux-gnu',
variant='soft',
gcc_cfg=['--with-mips-plt', '--with-float=soft'],
glibcs=[{'variant': 'n32-soft',
'cfg': ['--without-fp']},
{'variant': 'soft',
'arch': 'mips',
'ccopts': '-mabi=32',
'cfg': ['--without-fp']},
{'variant': 'n64-soft',
'ccopts': '-mabi=64',
'cfg': ['--without-fp']}])
self.add_config(arch='mips64',
os_name='linux-gnu',
variant='nan2008',
gcc_cfg=['--with-mips-plt', '--with-nan=2008',
'--with-arch-64=mips64r2',
'--with-arch-32=mips32r2'],
glibcs=[{'variant': 'n32-nan2008'},
{'variant': 'nan2008',
'arch': 'mips',
'ccopts': '-mabi=32'},
{'variant': 'n64-nan2008',
'ccopts': '-mabi=64'}])
self.add_config(arch='mips64',
os_name='linux-gnu',
variant='nan2008-soft',
gcc_cfg=['--with-mips-plt', '--with-nan=2008',
'--with-arch-64=mips64r2',
'--with-arch-32=mips32r2',
'--with-float=soft'],
glibcs=[{'variant': 'n32-nan2008-soft',
'cfg': ['--without-fp']},
{'variant': 'nan2008-soft',
'arch': 'mips',
'ccopts': '-mabi=32',
'cfg': ['--without-fp']},
{'variant': 'n64-nan2008-soft',
'ccopts': '-mabi=64',
'cfg': ['--without-fp']}])
self.add_config(arch='mips64el',
os_name='linux-gnu',
gcc_cfg=['--with-mips-plt'],
glibcs=[{'variant': 'n32'},
{'arch': 'mipsel',
'ccopts': '-mabi=32'},
{'variant': 'n64',
'ccopts': '-mabi=64'}])
self.add_config(arch='mips64el',
os_name='linux-gnu',
variant='soft',
gcc_cfg=['--with-mips-plt', '--with-float=soft'],
glibcs=[{'variant': 'n32-soft',
'cfg': ['--without-fp']},
{'variant': 'soft',
'arch': 'mipsel',
'ccopts': '-mabi=32',
'cfg': ['--without-fp']},
{'variant': 'n64-soft',
'ccopts': '-mabi=64',
'cfg': ['--without-fp']}])
self.add_config(arch='mips64el',
os_name='linux-gnu',
variant='nan2008',
gcc_cfg=['--with-mips-plt', '--with-nan=2008',
'--with-arch-64=mips64r2',
'--with-arch-32=mips32r2'],
glibcs=[{'variant': 'n32-nan2008'},
{'variant': 'nan2008',
'arch': 'mipsel',
'ccopts': '-mabi=32'},
{'variant': 'n64-nan2008',
'ccopts': '-mabi=64'}])
self.add_config(arch='mips64el',
os_name='linux-gnu',
variant='nan2008-soft',
gcc_cfg=['--with-mips-plt', '--with-nan=2008',
'--with-arch-64=mips64r2',
'--with-arch-32=mips32r2',
'--with-float=soft'],
glibcs=[{'variant': 'n32-nan2008-soft',
'cfg': ['--without-fp']},
{'variant': 'nan2008-soft',
'arch': 'mipsel',
'ccopts': '-mabi=32',
'cfg': ['--without-fp']},
{'variant': 'n64-nan2008-soft',
'ccopts': '-mabi=64',
'cfg': ['--without-fp']}])
self.add_config(arch='nios2',
os_name='linux-gnu')
self.add_config(arch='powerpc',
os_name='linux-gnu',
gcc_cfg=['--disable-multilib', '--enable-secureplt'])
self.add_config(arch='powerpc',
os_name='linux-gnu',
variant='soft',
gcc_cfg=['--disable-multilib', '--with-float=soft',
'--enable-secureplt'],
glibcs=[{'variant': 'soft', 'cfg': ['--without-fp']}])
self.add_config(arch='powerpc64',
os_name='linux-gnu',
gcc_cfg=['--disable-multilib', '--enable-secureplt'])
self.add_config(arch='powerpc64le',
os_name='linux-gnu',
gcc_cfg=['--disable-multilib', '--enable-secureplt'])
self.add_config(arch='s390x',
os_name='linux-gnu',
glibcs=[{},
{'arch': 's390', 'ccopts': '-m31'}])
# SH is missing __builtin_trap support, so work around this;
# see <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70216>.
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'}])
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 == '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, '-C', self.builddir]
subprocess.run(cmd, 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()
class Config:
"""A configuration for building a compiler and associated libraries."""
def __init__(self, ctx, arch, os_name, variant=None, 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 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
]
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=('host-libraries', 'compilers', 'glibcs'))
parser.add_argument('configs',
help='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)
ctx.run_builds(opts.action, opts.configs)
if __name__ == '__main__':
main(sys.argv[1:])