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configure.py
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configure.py
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#!/usr/bin/env python
"""
Configuration program for botan
(C) 2009,2010,2011,2012,2013,2014,2015,2016,2017,2018 Jack Lloyd
(C) 2015,2016,2017 Simon Warta (Kullo GmbH)
Botan is released under the Simplified BSD License (see license.txt)
This script is regularly tested with CPython 2.7 and 3.5, and
occasionally tested with CPython 2.6 and PyPy 4.
Support for CPython 2.6 will be dropped eventually, but is kept up for as
long as reasonably convenient.
CPython 2.5 and earlier are not supported.
On Jython target detection does not work (use --os and --cpu).
"""
import collections
import copy
import json
import sys
import os
import os.path
import platform
import re
import shlex
import shutil
import subprocess
import traceback
import logging
import time
import errno
import optparse # pylint: disable=deprecated-module
# An error caused by and to be fixed by the user, e.g. invalid command line argument
class UserError(Exception):
pass
# An error caused by bugs in this script or when reading/parsing build data files
# Those are not expected to be fixed by the user of this script
class InternalError(Exception):
pass
def flatten(l):
return sum(l, [])
def normalize_source_path(source):
"""
cmake needs this, and nothing else minds
"""
return os.path.normpath(source).replace('\\', '/')
def parse_version_file(version_path):
version_file = open(version_path)
key_and_val = re.compile(r"([a-z_]+) = ([a-zA-Z0-9:\-\']+)")
results = {}
for line in version_file.readlines():
if not line or line[0] == '#':
continue
match = key_and_val.match(line)
if match:
key = match.group(1)
val = match.group(2)
if val == 'None':
val = None
elif val.startswith("'") and val.endswith("'"):
val = val[1:len(val)-1]
else:
val = int(val)
results[key] = val
return results
class Version(object):
"""
Version information are all static members
"""
data = {}
@staticmethod
def get_data():
if not Version.data:
root_dir = os.path.dirname(os.path.realpath(__file__))
Version.data = parse_version_file(os.path.join(root_dir, 'src/build-data/version.txt'))
return Version.data
@staticmethod
def major():
return Version.get_data()["release_major"]
@staticmethod
def minor():
return Version.get_data()["release_minor"]
@staticmethod
def patch():
return Version.get_data()["release_patch"]
@staticmethod
def packed():
# Used on macOS for dylib versioning
return Version.major() * 1000 + Version.minor()
@staticmethod
def so_rev():
return Version.get_data()["release_so_abi_rev"]
@staticmethod
def release_type():
return Version.get_data()["release_type"]
@staticmethod
def datestamp():
return Version.get_data()["release_datestamp"]
@staticmethod
def as_string():
return '%d.%d.%d' % (Version.major(), Version.minor(), Version.patch())
@staticmethod
def vc_rev():
# Lazy load to ensure _local_repo_vc_revision() does not run before logger is set up
if Version.get_data()["release_vc_rev"] is None:
Version.data["release_vc_rev"] = Version._local_repo_vc_revision()
return Version.get_data()["release_vc_rev"]
@staticmethod
def _local_repo_vc_revision():
vc_command = ['git', 'rev-parse', 'HEAD']
cmdname = vc_command[0]
try:
vc = subprocess.Popen(
vc_command,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True)
(stdout, stderr) = vc.communicate()
if vc.returncode != 0:
logging.debug('Error getting rev from %s - %d (%s)',
cmdname, vc.returncode, stderr)
return 'unknown'
rev = str(stdout).strip()
logging.debug('%s reported revision %s', cmdname, rev)
return '%s:%s' % (cmdname, rev)
except OSError as e:
logging.debug('Error getting rev from %s - %s' % (cmdname, e.strerror))
return 'unknown'
class SourcePaths(object):
"""
A collection of paths defined by the project structure and
independent of user configurations.
All paths are relative to the base_dir, which may be relative as well (e.g. ".")
"""
def __init__(self, base_dir):
self.base_dir = base_dir
self.doc_dir = os.path.join(self.base_dir, 'doc')
self.src_dir = os.path.join(self.base_dir, 'src')
# dirs in src/
self.build_data_dir = os.path.join(self.src_dir, 'build-data')
self.configs_dir = os.path.join(self.src_dir, 'configs')
self.lib_dir = os.path.join(self.src_dir, 'lib')
self.python_dir = os.path.join(self.src_dir, 'python')
self.scripts_dir = os.path.join(self.src_dir, 'scripts')
# subdirs of src/
self.sphinx_config_dir = os.path.join(self.configs_dir, 'sphinx')
class BuildPaths(object): # pylint: disable=too-many-instance-attributes
"""
Constructor
"""
def __init__(self, source_paths, options, modules):
self.build_dir = os.path.join(options.with_build_dir, 'build')
self.libobj_dir = os.path.join(self.build_dir, 'obj', 'lib')
self.cliobj_dir = os.path.join(self.build_dir, 'obj', 'cli')
self.testobj_dir = os.path.join(self.build_dir, 'obj', 'test')
self.doc_output_dir = os.path.join(self.build_dir, 'docs')
self.handbook_output_dir = os.path.join(self.doc_output_dir, 'handbook')
self.doc_output_dir_doxygen = os.path.join(self.doc_output_dir, 'doxygen') if options.with_doxygen else None
self.include_dir = os.path.join(self.build_dir, 'include')
self.botan_include_dir = os.path.join(self.include_dir, 'botan')
self.internal_include_dir = os.path.join(self.botan_include_dir, 'internal')
self.external_include_dir = os.path.join(self.include_dir, 'external')
self.internal_headers = sorted(flatten([m.internal_headers() for m in modules]))
self.external_headers = sorted(flatten([m.external_headers() for m in modules]))
if options.amalgamation:
self.lib_sources = ['botan_all.cpp']
else:
self.lib_sources = [normalize_source_path(s) for s in sorted(flatten([mod.sources() for mod in modules]))]
self.public_headers = sorted(flatten([m.public_headers() for m in modules]))
def find_sources_in(basedir, srcdir):
for (dirpath, _, filenames) in os.walk(os.path.join(basedir, srcdir)):
for filename in filenames:
if filename.endswith('.cpp') and not filename.startswith('.'):
yield os.path.join(dirpath, filename)
def find_headers_in(basedir, srcdir):
for (dirpath, _, filenames) in os.walk(os.path.join(basedir, srcdir)):
for filename in filenames:
if filename.endswith('.h') and not filename.startswith('.'):
yield os.path.join(dirpath, filename)
self.cli_sources = [normalize_source_path(s) for s in find_sources_in(source_paths.src_dir, 'cli')]
self.cli_headers = [normalize_source_path(s) for s in find_headers_in(source_paths.src_dir, 'cli')]
self.test_sources = [normalize_source_path(s) for s in find_sources_in(source_paths.src_dir, 'tests')]
if options.build_fuzzers:
self.fuzzer_sources = list(find_sources_in(source_paths.src_dir, 'fuzzer'))
self.fuzzer_output_dir = os.path.join(self.build_dir, 'fuzzer')
self.fuzzobj_dir = os.path.join(self.build_dir, 'obj', 'fuzzer')
else:
self.fuzzer_sources = None
self.fuzzer_output_dir = None
self.fuzzobj_dir = None
def build_dirs(self):
out = [
self.libobj_dir,
self.cliobj_dir,
self.testobj_dir,
self.botan_include_dir,
self.internal_include_dir,
self.external_include_dir,
self.handbook_output_dir,
]
if self.doc_output_dir_doxygen:
out += [self.doc_output_dir_doxygen]
if self.fuzzer_output_dir:
out += [self.fuzzobj_dir]
out += [self.fuzzer_output_dir]
return out
def format_include_paths(self, cc, external_includes):
dash_i = cc.add_include_dir_option
output = dash_i + self.include_dir
if self.external_headers:
output += ' ' + dash_i + self.external_include_dir
for external_include in external_includes:
output += ' ' + dash_i + external_include
return output
def src_info(self, typ):
if typ == 'lib':
return (self.lib_sources, self.libobj_dir)
elif typ == 'cli':
return (self.cli_sources, self.cliobj_dir)
elif typ == 'test':
return (self.test_sources, self.testobj_dir)
elif typ == 'fuzzer':
return (self.fuzzer_sources, self.fuzzobj_dir)
else:
raise InternalError("Unknown src info type '%s'" % (typ))
def process_command_line(args): # pylint: disable=too-many-locals,too-many-statements
"""
Handle command line options
Do not use logging in this method as command line options need to be
available before logging is setup.
"""
parser = optparse.OptionParser(
formatter=optparse.IndentedHelpFormatter(max_help_position=50),
version=Version.as_string())
parser.add_option('--verbose', action='store_true', default=False,
help='Show debug messages')
parser.add_option('--quiet', action='store_true', default=False,
help='Show only warnings and errors')
target_group = optparse.OptionGroup(parser, 'Target options')
target_group.add_option('--cpu', help='set the target CPU architecture')
target_group.add_option('--os', help='set the target operating system')
target_group.add_option('--cc', dest='compiler', help='set the desired build compiler')
target_group.add_option('--cc-min-version', dest='cc_min_version', default=None,
metavar='MAJOR.MINOR',
help='Set the minimal version of the target compiler. ' \
'Use --cc-min-version=0.0 to support all compiler versions. ' \
'Default is auto detection.')
target_group.add_option('--cc-bin', dest='compiler_binary', metavar='BINARY',
help='set path to compiler binary')
target_group.add_option('--cc-abi-flags', metavar='FLAGS', default='',
help='set compiler ABI flags')
target_group.add_option('--cxxflags', metavar='FLAGS', default=None,
help='override all compiler flags')
target_group.add_option('--extra-cxxflags', metavar='FLAGS', default=None,
help='set extra compiler flags')
target_group.add_option('--ldflags', metavar='FLAGS',
help='set linker flags', default=None)
target_group.add_option('--ar-command', dest='ar_command', metavar='AR', default=None,
help='set path to static archive creator')
target_group.add_option('--ar-options', dest='ar_options', metavar='AR_OPTIONS', default=None,
help='set options for ar')
target_group.add_option('--msvc-runtime', metavar='RT', default=None,
help='specify MSVC runtime (MT, MD, MTd, MDd)')
target_group.add_option('--with-endian', metavar='ORDER', default=None,
help='override byte order guess')
target_group.add_option('--with-os-features', action='append', metavar='FEAT',
help='specify OS features to use')
target_group.add_option('--without-os-features', action='append', metavar='FEAT',
help='specify OS features to disable')
isa_extensions = [
'SSE2', 'SSSE3', 'SSE4.1', 'SSE4.2', 'AVX2', 'BMI2', 'RDRAND', 'RDSEED',
'AES-NI', 'SHA-NI',
'AltiVec', 'NEON', 'ARMv8Crypto']
for isa_extn_name in isa_extensions:
isa_extn = isa_extn_name.lower()
target_group.add_option('--disable-%s' % (isa_extn),
help='disable %s intrinsics' % (isa_extn_name),
action='append_const',
const=isa_extn.replace('-', '').replace('.', ''),
dest='disable_intrinsics')
build_group = optparse.OptionGroup(parser, 'Build options')
build_group.add_option('--system-cert-bundle', metavar='PATH', default=None,
help='set path to trusted CA bundle')
build_group.add_option('--with-debug-info', action='store_true', default=False, dest='with_debug_info',
help='include debug symbols')
build_group.add_option('--with-sanitizers', action='store_true', default=False, dest='with_sanitizers',
help='enable ASan/UBSan checks')
build_group.add_option('--enable-sanitizers', metavar='SAN', default='',
help='enable specific sanitizers')
build_group.add_option('--with-stack-protector', dest='with_stack_protector',
action='store_false', default=None, help=optparse.SUPPRESS_HELP)
build_group.add_option('--without-stack-protector', dest='with_stack_protector',
action='store_false', help='disable stack smashing protections')
build_group.add_option('--with-coverage', action='store_true', default=False, dest='with_coverage',
help='add coverage info and disable opts')
build_group.add_option('--with-coverage-info', action='store_true', default=False, dest='with_coverage_info',
help='add coverage info')
build_group.add_option('--enable-shared-library', dest='build_shared_lib',
action='store_true', default=None,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--disable-shared-library', dest='build_shared_lib',
action='store_false',
help='disable building shared library')
build_group.add_option('--enable-static-library', dest='build_static_lib',
action='store_true', default=None,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--disable-static-library', dest='build_static_lib',
action='store_false',
help='disable building static library')
build_group.add_option('--optimize-for-size', dest='optimize_for_size',
action='store_true', default=False,
help='optimize for code size')
build_group.add_option('--no-optimizations', dest='no_optimizations',
action='store_true', default=False,
help='disable all optimizations (for debugging)')
build_group.add_option('--debug-mode', action='store_true', default=False, dest='debug_mode',
help='enable debug info, disable optimizations')
build_group.add_option('--amalgamation', dest='amalgamation',
default=False, action='store_true',
help='use amalgamation to build')
build_group.add_option('--single-amalgamation-file',
default=False, action='store_true',
help='build single file instead of splitting on ABI')
build_group.add_option('--with-build-dir', metavar='DIR', default='',
help='setup the build in DIR')
build_group.add_option('--with-external-includedir', metavar='DIR', default=[],
help='use DIR for external includes', action='append')
build_group.add_option('--with-external-libdir', metavar='DIR', default=[],
help='use DIR for external libs', action='append')
build_group.add_option('--define-build-macro', metavar='DEFINE', default=[],
help='set compile-time pre-processor definition like KEY[=VALUE]', action='append')
build_group.add_option('--with-sysroot-dir', metavar='DIR', default='',
help='use DIR for system root while cross-compiling')
build_group.add_option('--with-openmp', default=False, action='store_true',
help='enable use of OpenMP')
link_methods = ['symlink', 'hardlink', 'copy']
build_group.add_option('--link-method', default=None, metavar='METHOD',
choices=link_methods,
help='choose how links to include headers are created (%s)' % ', '.join(link_methods))
build_group.add_option('--with-local-config',
dest='local_config', metavar='FILE',
help='include the contents of FILE into build.h')
build_group.add_option('--distribution-info', metavar='STRING',
help='distribution specific version',
default='unspecified')
build_group.add_option('--maintainer-mode', dest='maintainer_mode',
action='store_true', default=False,
help="Enable extra warnings")
build_group.add_option('--no-store-vc-rev', action='store_true', default=False,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--with-python-versions', dest='python_version',
metavar='N.M',
default='%d.%d' % (sys.version_info[0], sys.version_info[1]),
help='where to install botan2.py (def %default)')
build_group.add_option('--disable-cc-tests', dest='enable_cc_tests',
default=True, action='store_false',
help=optparse.SUPPRESS_HELP)
build_group.add_option('--with-valgrind', help='use valgrind API',
dest='with_valgrind', action='store_true', default=False)
# Cmake and bakefile options are hidden as they should not be used by end users
build_group.add_option('--with-cmake', action='store_true',
default=False, help=optparse.SUPPRESS_HELP)
build_group.add_option('--with-bakefile', action='store_true',
default=False, help=optparse.SUPPRESS_HELP)
build_group.add_option('--unsafe-fuzzer-mode', action='store_true', default=False,
help='Disable essential checks for testing')
build_group.add_option('--build-fuzzers', dest='build_fuzzers',
metavar='TYPE', default=None,
help='Build fuzzers (afl, libfuzzer, klee, test)')
build_group.add_option('--with-fuzzer-lib', metavar='LIB', default=None, dest='fuzzer_lib',
help='additionally link in LIB')
build_group.add_option('--test-mode', action='store_true', default=False,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--with-debug-asserts', action='store_true', default=False,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--build-bogo-shim', action='store_true', default=False,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--with-pkg-config', action='store_true', default=None,
help=optparse.SUPPRESS_HELP)
build_group.add_option('--without-pkg-config', dest='with_pkg_config', action='store_false',
help=optparse.SUPPRESS_HELP)
build_group.add_option('--boost-library-name', dest='boost_libnames', default=[],
help="file name of some boost library to link", action='append')
docs_group = optparse.OptionGroup(parser, 'Documentation Options')
docs_group.add_option('--with-documentation', action='store_true',
help=optparse.SUPPRESS_HELP)
docs_group.add_option('--without-documentation', action='store_false',
default=True, dest='with_documentation',
help='Skip building/installing documentation')
docs_group.add_option('--with-sphinx', action='store_true',
default=None, help='Use Sphinx')
docs_group.add_option('--without-sphinx', action='store_false',
dest='with_sphinx', help=optparse.SUPPRESS_HELP)
docs_group.add_option('--with-pdf', action='store_true',
default=False, help='Use Sphinx to generate PDF doc')
docs_group.add_option('--without-pdf', action='store_false',
dest='with_pdf', help=optparse.SUPPRESS_HELP)
docs_group.add_option('--with-rst2man', action='store_true',
default=None, help='Use rst2man to generate man page')
docs_group.add_option('--without-rst2man', action='store_false',
dest='with_rst2man', help=optparse.SUPPRESS_HELP)
docs_group.add_option('--with-doxygen', action='store_true',
default=False, help='Use Doxygen')
docs_group.add_option('--without-doxygen', action='store_false',
dest='with_doxygen', help=optparse.SUPPRESS_HELP)
mods_group = optparse.OptionGroup(parser, 'Module selection')
mods_group.add_option('--module-policy', dest='module_policy',
help="module policy file (see src/build-data/policy)",
metavar='POL', default=None)
mods_group.add_option('--enable-modules', dest='enabled_modules',
metavar='MODS', action='append',
help='enable specific modules')
mods_group.add_option('--disable-modules', dest='disabled_modules',
metavar='MODS', action='append',
help='disable specific modules')
mods_group.add_option('--no-autoload', action='store_true', default=False,
help=optparse.SUPPRESS_HELP)
mods_group.add_option('--minimized-build', action='store_true', dest='no_autoload',
help='minimize build')
# Should be derived from info.txt but this runs too early
third_party = ['boost', 'bzip2', 'lzma', 'openssl', 'commoncrypto', 'sqlite3', 'zlib', 'tpm']
for mod in third_party:
mods_group.add_option('--with-%s' % (mod),
help=('use %s' % (mod)) if mod in third_party else optparse.SUPPRESS_HELP,
action='append_const',
const=mod,
dest='enabled_modules')
mods_group.add_option('--without-%s' % (mod),
help=optparse.SUPPRESS_HELP,
action='append_const',
const=mod,
dest='disabled_modules')
mods_group.add_option('--with-everything', help=optparse.SUPPRESS_HELP,
action='store_true', default=False)
install_group = optparse.OptionGroup(parser, 'Installation options')
install_group.add_option('--program-suffix', metavar='SUFFIX',
help='append string to program names')
install_group.add_option('--library-suffix', metavar='SUFFIX', default='',
help='append string to library names')
install_group.add_option('--prefix', metavar='DIR',
help='set the install prefix')
install_group.add_option('--docdir', metavar='DIR',
help='set the doc install dir')
install_group.add_option('--bindir', metavar='DIR',
help='set the binary install dir')
install_group.add_option('--libdir', metavar='DIR',
help='set the library install dir')
install_group.add_option('--mandir', metavar='DIR',
help='set the install dir for man pages')
install_group.add_option('--includedir', metavar='DIR',
help='set the include file install dir')
info_group = optparse.OptionGroup(parser, 'Informational')
info_group.add_option('--list-modules', dest='list_modules',
action='store_true',
help='list available modules and exit')
info_group.add_option('--list-os-features', dest='list_os_features',
action='store_true',
help='list available OS features and exit')
parser.add_option_group(target_group)
parser.add_option_group(build_group)
parser.add_option_group(docs_group)
parser.add_option_group(mods_group)
parser.add_option_group(install_group)
parser.add_option_group(info_group)
# These exist only for autoconf compatibility (requested by zw for mtn)
compat_with_autoconf_options = [
'datadir',
'datarootdir',
'dvidir',
'exec-prefix',
'htmldir',
'infodir',
'libexecdir',
'localedir',
'localstatedir',
'oldincludedir',
'pdfdir',
'psdir',
'sbindir',
'sharedstatedir',
'sysconfdir'
]
for opt in compat_with_autoconf_options:
parser.add_option('--' + opt, help=optparse.SUPPRESS_HELP)
(options, args) = parser.parse_args(args)
if args != []:
raise UserError('Unhandled option(s): ' + ' '.join(args))
if options.with_endian not in [None, 'little', 'big']:
raise UserError('Bad value to --with-endian "%s"' % (options.with_endian))
if options.debug_mode:
options.no_optimizations = True
options.with_debug_info = True
if options.with_coverage:
options.with_coverage_info = True
options.no_optimizations = True
def parse_multiple_enable(modules):
if modules is None:
return []
return sorted({m for m in flatten([s.split(',') for s in modules]) if m != ''})
options.enabled_modules = parse_multiple_enable(options.enabled_modules)
options.disabled_modules = parse_multiple_enable(options.disabled_modules)
options.with_os_features = parse_multiple_enable(options.with_os_features)
options.without_os_features = parse_multiple_enable(options.without_os_features)
options.disable_intrinsics = parse_multiple_enable(options.disable_intrinsics)
return options
def take_options_from_env(options):
# Take some values from environment, if not set on command line
def update_from_env(val, var, name):
if val is None:
val = os.getenv(var)
if val is not None:
logging.info('Implicit --%s=%s due to environment variable %s', name, val, var)
return val
if os.getenv('CXX') and options.compiler_binary is None and options.compiler is not None:
logging.info('CXX environment variable is set which will override compiler path')
options.ar_command = update_from_env(options.ar_command, 'AR', 'ar-command')
options.ar_options = update_from_env(options.ar_options, 'AR_OPTIONS', 'ar-options')
options.compiler_binary = update_from_env(options.compiler_binary, 'CXX', 'cc-bin')
options.cxxflags = update_from_env(options.cxxflags, 'CXXFLAGS', 'cxxflags')
options.ldflags = update_from_env(options.ldflags, 'LDFLAGS', 'ldflags')
class LexResult(object):
pass
class LexerError(InternalError):
def __init__(self, msg, lexfile, line):
super(LexerError, self).__init__(msg)
self.msg = msg
self.lexfile = lexfile
self.line = line
def __str__(self):
return '%s at %s:%d' % (self.msg, self.lexfile, self.line)
def parse_lex_dict(as_list, map_name, infofile):
if len(as_list) % 3 != 0:
raise InternalError("Lex dictionary has invalid format (input not divisible by 3): %s" % as_list)
result = {}
for key, sep, value in [as_list[3*i:3*i+3] for i in range(0, len(as_list)//3)]:
if sep != '->':
raise InternalError("Map %s in %s has invalid format" % (map_name, infofile))
if key in result:
raise InternalError("Duplicate map entry %s in map %s file %s" % (key, map_name, infofile))
result[key] = value
return result
def lex_me_harder(infofile, allowed_groups, allowed_maps, name_val_pairs):
"""
Generic lexer function for info.txt and src/build-data files
"""
out = LexResult()
# Format as a nameable Python variable
def py_var(group):
return group.replace(':', '_')
lexer = shlex.shlex(open(infofile), infofile, posix=True)
lexer.wordchars += '=:.<>/,-!?+*' # handle various funky chars in info.txt
groups = allowed_groups + allowed_maps
for group in groups:
out.__dict__[py_var(group)] = []
for (key, val) in name_val_pairs.items():
out.__dict__[key] = val
def lexed_tokens(): # Convert to an iterator
while True:
token = lexer.get_token()
if token != lexer.eof:
yield token
else:
return
for token in lexed_tokens():
match = re.match('<(.*)>', token)
# Check for a grouping
if match is not None:
group = match.group(1)
if group not in groups:
raise LexerError('Unknown group "%s"' % (group),
infofile, lexer.lineno)
end_marker = '</' + group + '>'
token = lexer.get_token()
while token != end_marker:
out.__dict__[py_var(group)].append(token)
token = lexer.get_token()
if token is None:
raise LexerError('Group "%s" not terminated' % (group),
infofile, lexer.lineno)
elif token in name_val_pairs.keys():
if isinstance(out.__dict__[token], list):
out.__dict__[token].append(lexer.get_token())
else:
out.__dict__[token] = lexer.get_token()
else: # No match -> error
raise LexerError('Bad token "%s"' % (token), infofile, lexer.lineno)
for group in allowed_maps:
out.__dict__[group] = parse_lex_dict(out.__dict__[group], group, infofile)
return out
class InfoObject(object):
def __init__(self, infofile):
"""
Constructor sets members `infofile`, `lives_in`, `parent_module` and `basename`
"""
self.infofile = infofile
(dirname, basename) = os.path.split(infofile)
self.lives_in = dirname
if basename == 'info.txt':
(obj_dir, self.basename) = os.path.split(dirname)
if os.access(os.path.join(obj_dir, 'info.txt'), os.R_OK):
self.parent_module = os.path.basename(obj_dir)
else:
self.parent_module = None
else:
self.basename = basename.replace('.txt', '')
class ModuleInfo(InfoObject):
"""
Represents the information about a particular module
"""
def __init__(self, infofile):
# pylint: disable=too-many-statements
super(ModuleInfo, self).__init__(infofile)
lex = lex_me_harder(
infofile,
['header:internal', 'header:public', 'header:external', 'requires',
'os_features', 'arch', 'isa', 'cc', 'comment', 'warning'],
['defines', 'libs', 'frameworks'],
{
'load_on': 'auto'
})
def check_header_duplicates(header_list_public, header_list_internal):
pub_header = set(header_list_public)
int_header = set(header_list_internal)
if not pub_header.isdisjoint(int_header):
logging.error("Module %s header contains same header in public and internal sections" % self.infofile)
check_header_duplicates(lex.header_public, lex.header_internal)
all_source_files = []
all_header_files = []
for fspath in os.listdir(self.lives_in):
if fspath.endswith('.cpp'):
all_source_files.append(fspath)
elif fspath.endswith('.h'):
all_header_files.append(fspath)
self.source = all_source_files
# If not entry for the headers, all are assumed public
if lex.header_internal == [] and lex.header_public == []:
self.header_public = list(all_header_files)
self.header_internal = []
else:
self.header_public = lex.header_public
self.header_internal = lex.header_internal
self.header_external = lex.header_external
def convert_lib_list(libs):
out = {}
for (os_name, lib_list) in libs.items():
out[os_name] = lib_list.split(',')
return out
def combine_lines(c):
return ' '.join(c) if c else None
# Convert remaining lex result to members
self.arch = lex.arch
self.cc = lex.cc
self.comment = combine_lines(lex.comment)
self._defines = lex.defines
self._validate_defines_content(self._defines)
self.frameworks = convert_lib_list(lex.frameworks)
self.libs = convert_lib_list(lex.libs)
self.load_on = lex.load_on
self.isa = lex.isa
self.os_features = lex.os_features
self.requires = lex.requires
self.warning = combine_lines(lex.warning)
# Modify members
self.source = [normalize_source_path(os.path.join(self.lives_in, s)) for s in self.source]
self.header_internal = [os.path.join(self.lives_in, s) for s in self.header_internal]
self.header_public = [os.path.join(self.lives_in, s) for s in self.header_public]
self.header_external = [os.path.join(self.lives_in, s) for s in self.header_external]
# Filesystem read access check
for src in self.source + self.header_internal + self.header_public + self.header_external:
if not os.access(src, os.R_OK):
logging.error("Missing file %s in %s" % (src, infofile))
# Check for duplicates
def intersect_check(type_a, list_a, type_b, list_b):
intersection = set.intersection(set(list_a), set(list_b))
if intersection:
logging.error('Headers %s marked both %s and %s' % (' '.join(intersection), type_a, type_b))
intersect_check('public', self.header_public, 'internal', self.header_internal)
intersect_check('public', self.header_public, 'external', self.header_external)
intersect_check('external', self.header_external, 'internal', self.header_internal)
@staticmethod
def _validate_defines_content(defines):
for key, value in defines.items():
if not re.match('^[0-9A-Za-z_]{3,30}$', key):
raise InternalError('Module defines key has invalid format: "%s"' % key)
if not re.match('^20[0-9]{6}$', value):
raise InternalError('Module defines value has invalid format: "%s"' % value)
def cross_check(self, arch_info, cc_info, all_os_features, all_isa_extn):
for feat in set(flatten([o.split(',') for o in self.os_features])):
if feat not in all_os_features:
logging.error("Module %s uses an OS feature (%s) which no OS supports", self.infofile, feat)
for supp_cc in self.cc:
if supp_cc not in cc_info:
colon_idx = supp_cc.find(':')
# a versioned compiler dependency
if colon_idx > 0 and supp_cc[0:colon_idx] in cc_info:
pass
else:
raise InternalError('Module %s mentions unknown compiler %s' % (self.infofile, supp_cc))
for supp_arch in self.arch:
if supp_arch not in arch_info:
raise InternalError('Module %s mentions unknown arch %s' % (self.infofile, supp_arch))
for isa in self.isa:
if isa not in all_isa_extn:
raise InternalError('Module %s uses unknown ISA extension %s' % (self.infofile, isa))
def sources(self):
return self.source
def public_headers(self):
return self.header_public
def internal_headers(self):
return self.header_internal
def external_headers(self):
return self.header_external
def defines(self):
return [(key + ' ' + value) for key, value in self._defines.items()]
def compatible_cpu(self, archinfo, options):
arch_name = archinfo.basename
cpu_name = options.cpu
for isa in self.isa:
if isa in options.disable_intrinsics:
return False # explicitly disabled
if isa not in archinfo.isa_extensions:
return False
if self.arch != []:
if arch_name not in self.arch and cpu_name not in self.arch:
return False
return True
def compatible_os(self, os_data, options):
if not self.os_features:
return True
def has_all(needed, provided):
for n in needed:
if n not in provided:
return False
return True
provided_features = os_data.enabled_features(options)
for feature_set in self.os_features:
if has_all(feature_set.split(','), provided_features):
return True
return False
def compatible_compiler(self, ccinfo, cc_min_version, arch):
# Check if this compiler supports the flags we need
def supported_isa_flags(ccinfo, arch):
for isa in self.isa:
if ccinfo.isa_flags_for(isa, arch) is None:
return False
return True
# Check if module gives explicit compiler dependencies
def supported_compiler(ccinfo, cc_min_version):
if self.cc == []:
# no compiler restriction
return True
if ccinfo.basename in self.cc:
# compiler is supported, independent of version
return True
# Maybe a versioned compiler dep
for cc in self.cc:
try:
name, version = cc.split(":")
if name == ccinfo.basename:
min_cc_version = [int(v) for v in version.split('.')]
cur_cc_version = [int(v) for v in cc_min_version.split('.')]
# With lists of ints, this does what we want
return cur_cc_version >= min_cc_version
except ValueError:
# No version part specified
pass
return False # compiler not listed
return supported_isa_flags(ccinfo, arch) and supported_compiler(ccinfo, cc_min_version)
def dependencies(self, osinfo):
# base is an implicit dep for all submodules
deps = ['base']
if self.parent_module is not None:
deps.append(self.parent_module)
for req in self.requires:
if req.find('?') != -1:
(cond, dep) = req.split('?')
if osinfo is None or cond in osinfo.target_features:
deps.append(dep)