#!/usr/bin/env python """ Configuration program for botan (http://botan.randombit.net/) (C) 2009 Jack Lloyd Distributed under the terms of the Botan license Tested with CPython 2.4, 2.5, 2.6 - OK Jython 2.5 - Target detection does not work (use --os and --cpu) CPython 2.3 and earlier are not supported Has not been tested with IronPython or PyPy """ import sys import os import os.path import platform import re import shlex import shutil import string import subprocess import logging import getpass import time from optparse import (OptionParser, OptionGroup, IndentedHelpFormatter, SUPPRESS_HELP) class BuildConfigurationInformation(object): """ Version information """ version_major = 1 version_minor = 9 version_patch = 3 version_so_patch = 3 version_suffix = '-dev' version_string = '%d.%d.%d%s' % ( version_major, version_minor, version_patch, version_suffix) soversion_string = '%d.%d.%d%s' % ( version_major, version_minor, version_so_patch, version_suffix) """ Constructor """ def __init__(self, options, modules): self.build_dir = os.path.join(options.with_build_dir, 'build') self.checkobj_dir = os.path.join(self.build_dir, 'checks') self.libobj_dir = os.path.join(self.build_dir, 'lib') self.python_dir = os.path.join(options.src_dir, 'wrap', 'python') self.use_boost_python = options.boost_python self.pyobject_dir = os.path.join(self.build_dir, 'python') self.include_dir = os.path.join(self.build_dir, 'include') self.full_include_dir = os.path.join(self.include_dir, 'botan') all_files = sum([mod.add for mod in modules], []) self.headers = sorted( [file for file in all_files if file.endswith('.h')]) self.sources = sorted(set(all_files) - set(self.headers)) checks_dir = os.path.join(options.base_dir, 'checks') self.check_sources = sorted( [os.path.join(checks_dir, file) for file in os.listdir(checks_dir) if file.endswith('.cpp')]) self.python_sources = sorted( [os.path.join(self.python_dir, file) for file in os.listdir(self.python_dir) if file.endswith('.cpp')]) def doc_files(self): docs = ['readme.txt'] for docfile in ['api.pdf', 'tutorial.pdf', 'fips140.pdf', 'api.tex', 'tutorial.tex', 'fips140.tex', 'credits.txt', 'license.txt', 'log.txt', 'thanks.txt', 'todo.txt', 'pgpkeys.asc']: filename = os.path.join('doc', docfile) if os.access(filename, os.R_OK): docs.append(filename) return docs def pkg_config_file(self): return 'botan-%d.%d.pc' % (self.version_major, self.version_minor) def build_dirs(self): dirs = [self.checkobj_dir, self.libobj_dir, self.full_include_dir] if self.use_boost_python: dirs.append(self.pyobject_dir) return dirs def username(self): return getpass.getuser() def hostname(self): return platform.node() def timestamp(self): return time.ctime() """ Handle command line options """ def process_command_line(args): parser = OptionParser( formatter = IndentedHelpFormatter(max_help_position = 50), version = BuildConfigurationInformation.version_string) target_group = OptionGroup(parser, 'Target options') target_group.add_option('--cc', dest='compiler', help='set the desired build compiler') target_group.add_option('--os', default=platform.system().lower(), help='set the target operating system [%default]') target_group.add_option('--cpu', help='set the target processor type/model') target_group.add_option('--with-endian', metavar='ORDER', default=None, help='override guess of CPU byte order') target_group.add_option('--with-unaligned-mem', dest='unaligned_mem', action='store_true', default=None, help='enable unaligned memory accesses') target_group.add_option('--without-unaligned-mem', dest='unaligned_mem', action='store_false', help=SUPPRESS_HELP) target_group.add_option('--with-isa-extension', metavar='ISALIST', dest='with_isa_extns', action='append', default=[], help='enable ISA extensions (sse2, altivec, ...)') build_group = OptionGroup(parser, 'Build options') build_group.add_option('--enable-shared', dest='build_shared_lib', action='store_true', default=True, help=SUPPRESS_HELP) build_group.add_option('--disable-shared', dest='build_shared_lib', action='store_false', help='disable building a shared library') build_group.add_option('--enable-asm', dest='asm_ok', action='store_true', default=True, help=SUPPRESS_HELP) build_group.add_option('--disable-asm', dest='asm_ok', action='store_false', help='disallow use of assembler') build_group.add_option('--enable-debug', dest='debug_build', action='store_true', default=False, help='enable debug build') build_group.add_option('--disable-debug', dest='debug_build', action='store_false', help=SUPPRESS_HELP) build_group.add_option('--use-boost-python', dest='boost_python', default=False, action='store_true', help='enable Boost.Python wrapper') build_group.add_option('--with-build-dir', metavar='DIR', default='', help='setup the build in DIR') build_group.add_option('--makefile-style', metavar='STYLE', default=None, help='choose a makefile style (unix, nmake)') 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('--dumb-gcc', dest='dumb_gcc', action='store_true', default=False, help=SUPPRESS_HELP) mods_group = OptionGroup(parser, 'Module selection') mods_group.add_option('--enable-modules', dest='enabled_modules', metavar='MODS', action='append', default=[], help='enable specific modules') mods_group.add_option('--disable-modules', dest='disabled_modules', metavar='MODS', action='append', default=[], help='disable specific modules') mods_group.add_option('--no-autoload', action='store_true', default=False, help='disable automatic loading') for mod in ['openssl', 'gnump', 'bzip2', 'zlib']: # This is just an implementation of Optik's append_const action, # but that is not available in Python 2.4's optparse, so use a # callback instead def optparse_callback(option, opt, value, parser, dest, mod): parser.values.__dict__[dest].append(mod) mods_group.add_option('--with-%s' % (mod), action='callback', callback=optparse_callback, callback_kwargs = { 'dest': 'enabled_modules', 'mod': mod } ) mods_group.add_option('--without-%s' % (mod), help=SUPPRESS_HELP, action='callback', callback=optparse_callback, callback_kwargs = { 'dest': 'disabled_modules', 'mod': mod } ) install_group = OptionGroup(parser, 'Installation options') install_group.add_option('--prefix', metavar='DIR', help='set the base install directory') install_group.add_option('--docdir', metavar='DIR', help='set the documentation install directory') install_group.add_option('--libdir', metavar='DIR', help='set the library install directory') install_group.add_option('--includedir', metavar='DIR', help='set the include file install directory') parser.add_option_group(target_group) parser.add_option_group(build_group) parser.add_option_group(mods_group) parser.add_option_group(install_group) # These exist only for autoconf compatability (requested by zw for mtn) compat_with_autoconf_options = [ 'bindir', 'datadir', 'datarootdir', 'dvidir', 'exec-prefix', 'htmldir', 'infodir', 'libexecdir', 'localedir', 'localstatedir', 'mandir', 'oldincludedir', 'pdfdir', 'psdir', 'sbindir', 'sharedstatedir', 'sysconfdir' ] for opt in compat_with_autoconf_options: parser.add_option('--' + opt, help=SUPPRESS_HELP) (options, args) = parser.parse_args(args) if args != []: raise Exception('Unhandled option(s): ' + ' '.join(args)) if options.with_endian != None and \ options.with_endian not in ['little', 'big']: raise Exception('Bad value to --with-endian "%s"' % ( options.with_endian)) def parse_multiple_enable(modules): return sorted(set(sum([s.split(',') for s in modules], []))) options.enabled_modules = parse_multiple_enable(options.enabled_modules) options.disabled_modules = parse_multiple_enable(options.disabled_modules) options.with_isa_extns = parse_multiple_enable(options.with_isa_extns) return options """ Generic lexer function for info.txt and src/build-data files """ def lex_me_harder(infofile, to_obj, allowed_groups, name_val_pairs): class LexerError(Exception): def __init__(self, msg, line): self.msg = msg self.line = line def __str__(self): return '%s at %s:%d' % (self.msg, infofile, self.line) (dirname, basename) = os.path.split(infofile) to_obj.lives_in = dirname if basename == 'info.txt': (obj_dir,to_obj.basename) = os.path.split(dirname) if os.access(os.path.join(obj_dir, 'info.txt'), os.R_OK): to_obj.parent_module = os.path.basename(obj_dir) else: to_obj.parent_module = None else: to_obj.basename = basename.replace('.txt', '') lexer = shlex.shlex(open(infofile), infofile, posix=True) lexer.wordchars += '|:.<>/,-!' # handle various funky chars in info.txt for group in allowed_groups: to_obj.__dict__[group] = [] for (key,val) in name_val_pairs.iteritems(): to_obj.__dict__[key] = val def lexed_tokens(): # Convert to an interator token = lexer.get_token() while token != None: yield token token = lexer.get_token() 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 allowed_groups: raise LexerError('Unknown group "%s"' % (group), lexer.lineno) end_marker = '' token = lexer.get_token() while token != end_marker: to_obj.__dict__[group].append(token) token = lexer.get_token() if token is None: raise LexerError('Group "%s" not terminated' % (group), lexer.lineno) elif token in name_val_pairs.keys(): to_obj.__dict__[token] = lexer.get_token() else: # No match -> error raise LexerError('Bad token "%s"' % (token), lexer.lineno) """ Convert a lex'ed map (from build-data files) from a list to a dict """ def force_to_dict(l): return dict(zip(l[::3],l[2::3])) """ Represents the information about a particular module """ class ModuleInfo(object): def __init__(self, infofile): lex_me_harder(infofile, self, ['add', 'requires', 'os', 'arch', 'cc', 'libs'], { 'load_on': 'auto', 'define': None, 'modset': None, 'need_isa': None, 'note': '', 'mp_bits': 0 }) if self.add == []: for (dirpath, dirnames, filenames) in os.walk(self.lives_in): if dirpath == self.lives_in: self.add = [filename for filename in filenames if (filename.endswith('.cpp') or filename.endswith('.h') or filename.endswith('.S')) and not filename.startswith('.')] # Coerce to more useful types self.libs = force_to_dict(self.libs) def add_dir_name(filename): if filename.count(':') == 0: return os.path.join(self.lives_in, filename) # modules can request to add files of the form # MODULE_NAME:FILE_NAME to add a file from another module # For these, assume other module is always in a # neighboring directory; this is true for all current uses return os.path.join(os.path.split(self.lives_in)[0], *filename.split(':')) self.add = map(add_dir_name, self.add) self.mp_bits = int(self.mp_bits) def compatible_cpu(self, archinfo, options): arch_name = archinfo.basename cpu_name = options.cpu if self.arch != []: if arch_name not in self.arch and cpu_name not in self.arch: return False if self.need_isa != None: cpu_isa = archinfo.isa_extensions_in(cpu_name) if self.need_isa not in cpu_isa: return self.need_isa in options.with_isa_extns return True def compatible_os(self, os): return self.os == [] or os in self.os def compatible_compiler(self, cc): return self.cc == [] or cc in self.cc def dependencies(self): # utils is an implicit dep (contains types, etc) deps = self.requires + ['utils'] if self.parent_module != None: deps.append(self.parent_module) return deps def __cmp__(self, other): if self.basename < other.basename: return -1 if self.basename == other.basename: return 0 return 1 class ArchInfo(object): def __init__(self, infofile): lex_me_harder(infofile, self, ['aliases', 'submodels', 'submodel_aliases', 'isa_extn'], { 'endian': None, 'unaligned': 'no' }) def convert_isa_list(input): isa_info = {} for line in self.isa_extn: (isa,cpus) = line.split(':') for cpu in cpus.split(','): isa_info.setdefault(cpu, []).append(isa) return isa_info self.isa_extn = convert_isa_list(self.isa_extn) self.submodel_aliases = force_to_dict(self.submodel_aliases) if self.unaligned == 'ok': self.unaligned_ok = 1 else: self.unaligned_ok = 0 """ Return ISA extensions specific to this CPU """ def isa_extensions_in(self, cpu_type): return sorted(self.isa_extn.get(cpu_type, []) + self.isa_extn.get('all', [])) """ Return a list of all submodels for this arch """ def all_submodels(self): return sorted(zip(self.submodels, self.submodels) + self.submodel_aliases.items(), key = lambda k: len(k[0]), reverse = True) """ Return CPU-specific defines for build.h """ def defines(self, options): macros = ['TARGET_ARCH_IS_%s' % (self.basename.upper())] def form_cpu_macro(cpu_name): return cpu_name.upper().replace('.', '').replace('-', '_') if self.basename != options.cpu: macros.append('TARGET_CPU_IS_%s' % (form_cpu_macro(options.cpu))) isa_extensions = sorted(set( sum([self.isa_extensions_in(options.cpu), options.with_isa_extns], []))) for simd in isa_extensions: macros.append('TARGET_CPU_HAS_%s' % (simd.upper())) endian = options.with_endian or self.endian if endian != None: macros.append('TARGET_CPU_IS_%s_ENDIAN' % (endian.upper())) unaligned_ok = options.unaligned_mem if unaligned_ok is None: unaligned_ok = self.unaligned_ok if unaligned_ok: logging.info('Assuming unaligned memory access works') macros.append('TARGET_UNALIGNED_MEMORY_ACCESS_OK %d' % (unaligned_ok)) return macros class CompilerInfo(object): def __init__(self, infofile): lex_me_harder(infofile, self, ['so_link_flags', 'mach_opt', 'mach_abi_linking'], { 'binary_name': None, 'macro_name': None, 'compile_option': '-c ', 'output_to_option': '-o ', 'add_include_dir_option': '-I', 'add_lib_dir_option': '-L', 'add_lib_option': '-l', 'lib_opt_flags': '', 'check_opt_flags': '', 'debug_flags': '', 'no_debug_flags': '', 'shared_flags': '', 'lang_flags': '', 'warning_flags': '', 'dll_import_flags': '', 'dll_export_flags': '', 'ar_command': None, 'makefile_style': '' }) self.so_link_flags = force_to_dict(self.so_link_flags) self.mach_abi_linking = force_to_dict(self.mach_abi_linking) self.mach_opt_flags = {} while self.mach_opt != []: proc = self.mach_opt.pop(0) if self.mach_opt.pop(0) != '->': raise Exception('Parsing err in %s mach_opt' % (self.basename)) flags = self.mach_opt.pop(0) regex = '' if len(self.mach_opt) > 0 and \ (len(self.mach_opt) == 1 or self.mach_opt[1] != '->'): regex = self.mach_opt.pop(0) self.mach_opt_flags[proc] = (flags,regex) del self.mach_opt """ Return the machine specific ABI flags """ def mach_abi_link_flags(self, osname, arch, submodel): abi_link = set() for what in ['all', osname, arch, submodel]: if self.mach_abi_linking.get(what) != None: abi_link.add(self.mach_abi_linking.get(what)) if len(abi_link) == 0: return '' return ' ' + ' '.join(abi_link) """ Return the flags for MACH_OPT """ def mach_opts(self, arch, submodel): def submodel_fixup(tup): return tup[0].replace('SUBMODEL', submodel.replace(tup[1], '')) if submodel == arch: return '' if submodel in self.mach_opt_flags: return submodel_fixup(self.mach_opt_flags[submodel]) if arch in self.mach_opt_flags: return submodel_fixup(self.mach_opt_flags[arch]) return '' """ Return the flags for LIB_OPT """ def library_opt_flags(self, debug_build): flags = self.lib_opt_flags if debug_build and self.debug_flags != '': flags += ' ' + self.debug_flags if not debug_build and self.no_debug_flags != '': flags += ' ' + self.no_debug_flags return flags """ Return the command needed to link a shared object """ def so_link_command_for(self, osname): if osname in self.so_link_flags: return self.so_link_flags[osname] return self.so_link_flags['default'] """ Return defines for build.h """ def defines(self): return ['BUILD_COMPILER_IS_' + self.macro_name] class OsInfo(object): def __init__(self, infofile): lex_me_harder(infofile, self, ['aliases', 'target_features', 'supports_shared'], { 'os_type': None, 'obj_suffix': 'o', 'so_suffix': 'so', 'static_suffix': 'a', 'ar_command': 'ar crs', 'ar_needs_ranlib': False, 'install_root': '/usr/local', 'header_dir': 'include', 'lib_dir': 'lib', 'doc_dir': 'share/doc', 'install_cmd_data': 'install -m 644', 'install_cmd_exec': 'install -m 755' }) self.ar_needs_ranlib = bool(self.ar_needs_ranlib) def ranlib_command(self): if self.ar_needs_ranlib: return 'ranlib' else: return 'true' # no-op def defines(self): return ['TARGET_OS_IS_%s' % (self.basename.upper())] + \ ['TARGET_OS_HAS_' + feat.upper() for feat in self.target_features] def fixup_proc_name(proc): proc = proc.lower().replace(' ', '') for junk in ['(tm)', '(r)']: proc = proc.replace(junk, '') return proc def canon_processor(archinfo, proc): proc = fixup_proc_name(proc) for ainfo in archinfo.values(): if ainfo.basename == proc or proc in ainfo.aliases: return (ainfo.basename, ainfo.basename) else: for (match,submodel) in ainfo.all_submodels(): if re.search(match, proc) != None: return (ainfo.basename, submodel) raise Exception('Unknown or unidentifiable processor "%s"' % (proc)) def guess_processor(archinfo): base_proc = platform.machine() if base_proc == '': raise Exception('Could not determine target CPU; set with --cpu') full_proc = fixup_proc_name(platform.processor()) or base_proc for ainfo in archinfo.values(): if ainfo.basename == base_proc or base_proc in ainfo.aliases: for (match,submodel) in ainfo.all_submodels(): if re.search(match, full_proc) != None: return (ainfo.basename, submodel) return canon_processor(archinfo, ainfo.basename) # No matches, so just use the base proc type return canon_processor(archinfo, base_proc) """ Read a whole file into memory as a string """ def slurp_file(filename): if filename is None: return '' return ''.join(open(filename).readlines()) """ Perform template substitution """ def process_template(template_file, variables): class PercentSignTemplate(string.Template): delimiter = '%' try: template = PercentSignTemplate(slurp_file(template_file)) return template.substitute(variables) except KeyError, e: raise Exception('Unbound var %s in template %s' % (e, template_file)) """ Create the template variables needed to process the makefile, build.h, etc """ def create_template_vars(build_config, options, modules, cc, arch, osinfo): def make_cpp_macros(macros): return '\n'.join(['#define BOTAN_' + macro for macro in macros]) """ Figure out what external libraries are needed based on selected modules """ def link_to(): libs = set() for module in modules: for (osname,link_to) in module.libs.iteritems(): if osname == 'all' or osname == osinfo.basename: libs.add(link_to) else: match = re.match('^all!(.*)', osname) if match is not None: exceptions = match.group(1).split(',') if osinfo.basename not in exceptions: libs.add(link_to) return sorted(libs) def objectfile_list(sources, obj_dir): for src in sources: basename = os.path.basename(src) for src_suffix in ['.cpp', '.S']: basename = basename.replace(src_suffix, '.' + osinfo.obj_suffix) yield os.path.join(obj_dir, basename) def choose_mp_bits(): mp_bits = [mod.mp_bits for mod in modules if mod.mp_bits != 0] if mp_bits == []: return 32 # default # Check that settings are consistent across modules for mp_bit in mp_bits[1:]: if mp_bit != mp_bits[0]: raise Exception('Incompatible mp_bits settings found') return mp_bits[0] """ Form snippets of makefile for building each source file """ def build_commands(sources, obj_dir, flags): for (obj_file,src) in zip(objectfile_list(sources, obj_dir), sources): yield '%s: %s\n\t$(CXX) %s%s $(%s_FLAGS) %s$? %s$@\n' % ( obj_file, src, cc.add_include_dir_option, build_config.include_dir, flags, cc.compile_option, cc.output_to_option) def makefile_list(items): items = list(items) # force evaluation so we can slice it return (' '*16).join([item + ' \\\n' for item in items[:-1]] + [items[-1]]) def prefix_with_build_dir(path): if options.with_build_dir != None: return os.path.join(options.with_build_dir, path) return path return { 'version_major': build_config.version_major, 'version_minor': build_config.version_minor, 'version_patch': build_config.version_patch, 'version': build_config.version_string, 'so_version': build_config.soversion_string, 'timestamp': build_config.timestamp(), 'user': build_config.username(), 'hostname': build_config.hostname(), 'command_line': ' '.join(sys.argv), 'local_config': slurp_file(options.local_config), 'makefile_style': options.makefile_style or cc.makefile_style, 'makefile_path': prefix_with_build_dir('Makefile'), 'prefix': options.prefix or osinfo.install_root, 'libdir': options.libdir or osinfo.lib_dir, 'includedir': options.includedir or osinfo.header_dir, 'docdir': options.docdir or osinfo.doc_dir, 'doc_src_dir': 'doc', 'build_dir': build_config.build_dir, 'os': options.os, 'arch': options.arch, 'submodel': options.cpu, 'mp_bits': choose_mp_bits(), 'cc': cc.binary_name + cc.mach_abi_link_flags(options.os, options.arch, options.cpu), 'lib_opt': cc.library_opt_flags(options.debug_build), 'mach_opt': cc.mach_opts(options.arch, options.cpu), 'check_opt': cc.check_opt_flags, 'lang_flags': cc.lang_flags + options.extra_flags, 'warn_flags': cc.warning_flags, 'shared_flags': cc.shared_flags, 'dll_export_flags': cc.dll_export_flags, 'so_link': cc.so_link_command_for(osinfo.basename), 'link_to': ' '.join([cc.add_lib_option + lib for lib in link_to()]), 'module_defines': make_cpp_macros( sorted(['HAS_' + m.define for m in modules if m.define])), 'target_os_defines': make_cpp_macros(osinfo.defines()), 'target_compiler_defines': make_cpp_macros(cc.defines()), 'target_cpu_defines': make_cpp_macros(arch.defines(options)), 'include_files': makefile_list(build_config.headers), 'lib_objs': makefile_list( objectfile_list(build_config.sources, build_config.libobj_dir)), 'check_objs': makefile_list( objectfile_list(build_config.check_sources, build_config.checkobj_dir)), 'lib_build_cmds': '\n'.join( build_commands(build_config.sources, build_config.libobj_dir, 'LIB')), 'check_build_cmds': '\n'.join( build_commands(build_config.check_sources, build_config.checkobj_dir, 'CHECK')), 'python_objs': makefile_list( objectfile_list(build_config.python_sources, build_config.pyobject_dir)), 'python_build_cmds': '\n'.join( build_commands(build_config.python_sources, build_config.pyobject_dir, 'PYTHON')), 'ar_command': cc.ar_command or osinfo.ar_command, 'ranlib_command': osinfo.ranlib_command(), 'install_cmd_exec': osinfo.install_cmd_exec, 'install_cmd_data': osinfo.install_cmd_data, 'check_prefix': prefix_with_build_dir(''), 'lib_prefix': prefix_with_build_dir(''), 'static_suffix': osinfo.static_suffix, 'so_suffix': osinfo.so_suffix, 'botan_config': prefix_with_build_dir( os.path.join(build_config.build_dir, 'botan-config')), 'botan_pkgconfig': prefix_with_build_dir( os.path.join(build_config.build_dir, build_config.pkg_config_file())), 'doc_files': makefile_list(build_config.doc_files()), 'mod_list': '\n'.join(sorted([m.basename for m in modules])), 'python_version': '.'.join(map(str, sys.version_info[0:2])) } """ Determine which modules to load based on options, target, etc """ def choose_modules_to_use(modules, archinfo, options): to_load = [] maybe_dep = [] not_using_because = {} def cannot_use_because(mod, reason): not_using_because.setdefault(reason, []).append(mod) for (modname, module) in modules.iteritems(): if modname in options.disabled_modules: cannot_use_because(modname, 'disabled by user') elif modname in options.enabled_modules: to_load.append(modname) # trust the user elif not module.compatible_cpu(archinfo, options): cannot_use_because(modname, 'CPU incompatible') elif not module.compatible_os(options.os): cannot_use_because(modname, 'OS incompatible') elif not module.compatible_compiler(options.compiler): cannot_use_because(modname, 'compiler incompatible') else: if module.load_on == 'never': cannot_use_because(modname, 'disabled as buggy') elif module.load_on == 'request': cannot_use_because(modname, 'loaded on request only') elif module.load_on == 'dep': maybe_dep.append(modname) elif module.load_on == 'always': to_load.append(modname) elif module.load_on == 'asm_ok': if options.asm_ok: if options.no_autoload: maybe_dep.append(modname) else: to_load.append(modname) else: cannot_use_because(modname, 'uses assembly and --disable-asm set') elif module.load_on == 'auto': if options.no_autoload: maybe_dep.append(modname) else: to_load.append(modname) else: logging.warning('Unknown load_on %s in %s' % ( module.load_on, modname)) dependency_failure = True while dependency_failure: dependency_failure = False for modname in to_load: for deplist in map(lambda s: s.split('|'), modules[modname].dependencies()): dep_met = False for mod in deplist: if dep_met is True: break if mod in to_load: dep_met = True elif mod in maybe_dep: maybe_dep.remove(mod) to_load.append(mod) dep_met = True if dep_met == False: dependency_failure = True if modname in to_load: to_load.remove(modname) if modname in maybe_dep: maybe_dep.remove(modname) cannot_use_because(modname, 'of dependency failure') for not_a_dep in maybe_dep: cannot_use_because(not_a_dep, 'loaded only if needed by dependency') for reason in sorted(not_using_because.keys()): disabled_mods = sorted(set([mod for mod in not_using_because[reason]])) if disabled_mods != []: logging.info('Skipping mod because %s - %s' % ( reason, ' '.join(disabled_mods))) logging.debug('Loading modules %s', ' '.join(sorted(to_load))) return [modules[mod] for mod in to_load] """ Load the info files about modules, targets, etc """ def load_info_files(options): def find_files_named(desired_name, in_path): for (dirpath, dirnames, filenames) in os.walk(in_path): if desired_name in filenames: yield os.path.join(dirpath, desired_name) modules = dict([(mod.basename, mod) for mod in [ModuleInfo(info) for info in find_files_named('info.txt', options.src_dir)]]) def list_files_in_build_data(subdir): for (dirpath, dirnames, filenames) in \ os.walk(os.path.join(options.build_data, subdir)): for filename in filenames: if filename.endswith('.txt'): yield os.path.join(dirpath, filename) def form_name(filepath): return os.path.basename(filepath).replace('.txt', '') archinfo = dict([(form_name(info), ArchInfo(info)) for info in list_files_in_build_data('arch')]) osinfo = dict([(form_name(info), OsInfo(info)) for info in list_files_in_build_data('os')]) ccinfo = dict([(form_name(info), CompilerInfo(info)) for info in list_files_in_build_data('cc')]) if 'defaults' in osinfo: del osinfo['defaults'] # FIXME (remove the file) return (modules, archinfo, ccinfo, osinfo) """ Perform the filesystem operations needed to setup the build """ def setup_build(build_config, options, template_vars): """ Copy or link the file, depending on what the platform offers """ def portable_symlink(filename, target_dir): if not os.access(filename, os.R_OK): logging.warning('Missing file %s' % (filename)) return if 'symlink' in os.__dict__: def count_dirs(dir, accum = 0): if dir == '' or dir == os.path.curdir: return accum (dir,basename) = os.path.split(dir) return accum + 1 + count_dirs(dir) dirs_up = count_dirs(target_dir) source = os.path.join(os.path.join(*[os.path.pardir]*dirs_up), filename) target = os.path.join(target_dir, os.path.basename(filename)) os.symlink(source, target) elif 'link' in os.__dict__: os.link(filename, os.path.join(target_dir, os.path.basename(filename))) else: shutil.copy(filename, target_dir) def choose_makefile_template(style): if style == 'nmake': return 'nmake.in' elif style == 'unix': if options.build_shared_lib: return 'unix_shr.in' else: return 'unix.in' else: raise Exception('Unknown makefile style "%s"' % (style)) # First delete the build tree, if existing try: shutil.rmtree(build_config.build_dir) except OSError, e: logging.debug('Error while removing build dir: %s' % (e)) for dir in build_config.build_dirs(): os.makedirs(dir) makefile_template = os.path.join( options.makefile_dir, choose_makefile_template(template_vars['makefile_style'])) logging.debug('Using makefile template %s' % (makefile_template)) templates_to_proc = { makefile_template: template_vars['makefile_path'] } for (template, sink) in [('buildh.in', 'build.h'), ('botan-config.in', 'botan-config'), ('botan.pc.in', build_config.pkg_config_file()), ('botan.doxy.in', 'botan.doxy')]: templates_to_proc[os.path.join(options.build_data, template)] = \ os.path.join(build_config.build_dir, sink) if options.boost_python: template = os.path.join(options.makefile_dir, 'python.in') templates_to_proc[template] = 'Makefile.python' for (template, sink) in templates_to_proc.items(): try: f = open(sink, 'w') f.write(process_template(template, template_vars)) finally: f.close() logging.debug('Linking %d header files in %s' % ( len(build_config.headers), build_config.full_include_dir)) for header_file in build_config.headers: portable_symlink(header_file, build_config.full_include_dir) """ Main driver """ def main(argv = None): if argv is None: argv = sys.argv logging.basicConfig(stream = sys.stdout, format = '%(levelname) 7s: %(message)s', level = logging.INFO) logging.debug('%s invoked with options "%s"' % ( argv[0], ' '.join(argv[1:]))) logging.debug('Platform: OS="%s" machine="%s" proc="%s"' % ( platform.system(), platform.machine(), platform.processor())) options = process_command_line(argv[1:]) if options.os == "java": raise Exception("Jython detected: need --os and --cpu to set target") options.base_dir = os.path.dirname(argv[0]) options.src_dir = os.path.join(options.base_dir, 'src') options.build_data = os.path.join(options.src_dir, 'build-data') options.makefile_dir = os.path.join(options.build_data, 'makefile') (modules, archinfo, ccinfo, osinfo) = load_info_files(options) if options.compiler is None: if options.os == 'windows': options.compiler = 'msvc' else: options.compiler = 'gcc' logging.info('Guessing to use compiler %s' % (options.compiler)) if options.compiler not in ccinfo: raise Exception('Unknown compiler "%s"; available options: %s' % ( options.compiler, ' '.join(sorted(ccinfo.keys())))) if options.os not in osinfo: def find_canonical_os_name(os): for (name, info) in osinfo.items(): if os in info.aliases: return name return os # not found options.os = find_canonical_os_name(options.os) if options.os not in osinfo: raise Exception('Unknown OS "%s"; available options: %s' % ( options.os, ' '.join(sorted(osinfo.keys())))) if options.cpu is None: (options.arch, options.cpu) = guess_processor(archinfo) logging.info('Guessing target processor is a %s/%s' % ( options.arch, options.cpu)) else: cpu_from_user = options.cpu (options.arch, options.cpu) = canon_processor(archinfo, options.cpu) logging.info('Canonicalizized --cpu=%s to %s/%s' % ( cpu_from_user, options.arch, options.cpu)) logging.info('Target is %s-%s-%s-%s' % ( options.compiler, options.os, options.arch, options.cpu)) # Kind of a hack... options.extra_flags = '' if options.compiler == 'gcc': def is_64bit_arch(arch): if arch.endswith('64') or arch in ['alpha', 's390x']: return True return False if not is_64bit_arch(options.arch) and not options.dumb_gcc: try: matching_version = '(4\.[01234]\.)|(3\.[34]\.)|(2\.95\.[0-4])' gcc_version = ''.join( subprocess.Popen(['g++', '-v'], stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()) if re.search(matching_version, gcc_version): options.dumb_gcc = True except OSError, e: logging.info('Could not execute GCC for version check') if options.dumb_gcc is True: logging.info('Setting -fpermissive to work around gcc bug') options.extra_flags = ' -fpermissive' modules_to_use = choose_modules_to_use(modules, archinfo[options.arch], options) build_config = BuildConfigurationInformation(options, modules_to_use) build_config.headers.append( os.path.join(build_config.build_dir, 'build.h')) template_vars = create_template_vars(build_config, options, modules_to_use, ccinfo[options.compiler], archinfo[options.arch], osinfo[options.os]) # Performs the I/O setup_build(build_config, options, template_vars) logging.info('Botan %s build setup is complete' % ( build_config.version_string)) if __name__ == '__main__': try: main() except Exception, e: print >>sys.stderr, e #import traceback #traceback.print_exc(file=sys.stderr) sys.exit(1) sys.exit(0)