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| -rw-r--r-- | ChangeLog | 2 | ||||
| -rwxr-xr-x | scripts/build-many-glibcs.py | 1142 |
2 files changed, 1144 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 95f983ff49..7521477dab 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,7 @@ 2016-11-11 Joseph Myers <joseph@codesourcery.com> + * scripts/build-many-glibcs.py: New file. + * stdlib/bug-getcontext.c: Include <libc-internal.h>. (do_test): Disable -Wmaybe-uninitialized around uses of except_mask. diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py new file mode 100755 index 0000000000..4b4e15ca0b --- /dev/null +++ b/scripts/build-many-glibcs.py @@ -0,0 +1,1142 @@ +#!/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: '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 (<component>-<version), +for 'checkout', or, for actions other than 'checkout', 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 +import urllib.request + + +class Context: + + """The global state associated with builds in a given directory.""" + + def __init__(self, topdir, parallelism, keep, action): + """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') + if action != 'checkout': + 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', + first_gcc_cfg=['--with-system-libunwind']) + self.add_config(arch='m68k', + os_name='linux-gnu', + gcc_cfg=['--disable-multilib']) + self.add_config(arch='m68k', + os_name='linux-gnu', + variant='coldfire', + gcc_cfg=['--with-arch=cf', '--disable-multilib']) + self.add_config(arch='microblaze', + os_name='linux-gnu', + gcc_cfg=['--disable-multilib']) + self.add_config(arch='microblazeel', + os_name='linux-gnu', + gcc_cfg=['--disable-multilib']) + 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='powerpc', + os_name='linux-gnuspe', + gcc_cfg=['--disable-multilib', '--enable-secureplt', + '--enable-e500-double'], + glibcs=[{'cfg': ['--without-fp']}]) + self.add_config(arch='powerpc', + os_name='linux-gnuspe', + variant='e500v1', + gcc_cfg=['--disable-multilib', '--enable-secureplt'], + glibcs=[{'variant': 'e500v1', 'cfg': ['--without-fp']}]) + 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'}, + {'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:]) |