buildtools/wafsamba/samba_utils.py

   1 # a waf tool to add autoconf-like macros to the configure section
   2 # and for SAMBA_ macros for building libraries, binaries etc
   3
   4 import Build, os, sys, Options, Utils, Task, re, fnmatch, Logs
   5 from TaskGen import feature, before
   6 from Configure import conf, ConfigurationContext
   7 from Logs import debug
   8 import shlex
   9
  10 # TODO: make this a --option
  11 LIB_PATH="shared"
  12
  13
  14 # sigh, python octal constants are a mess
  15 MODE_644 = int('644', 8)
  16 MODE_755 = int('755', 8)
  17
  18 @conf
  19 def SET_TARGET_TYPE(ctx, target, value):
  20     '''set the target type of a target'''
  21     cache = LOCAL_CACHE(ctx, 'TARGET_TYPE')
  22     if target in cache and cache[target] != 'EMPTY':
  23         Logs.error("ERROR: Target '%s' in directory %s re-defined as %s - was %s" % (target, ctx.curdir, value, cache[target]))
  24         sys.exit(1)
  25     LOCAL_CACHE_SET(ctx, 'TARGET_TYPE', target, value)
  26     debug("task_gen: Target '%s' created of type '%s' in %s" % (target, value, ctx.curdir))
  27     return True
  28
  29
  30 def GET_TARGET_TYPE(ctx, target):
  31     '''get target type from cache'''
  32     cache = LOCAL_CACHE(ctx, 'TARGET_TYPE')
  33     if not target in cache:
  34         return None
  35     return cache[target]
  36
  37
  38 ######################################################
  39 # this is used as a decorator to make functions only
  40 # run once. Based on the idea from
  41 # http://stackoverflow.com/questions/815110/is-there-a-decorator-to-simply-cache-function-return-values
  42 def runonce(function):
  43     runonce_ret = {}
  44     def runonce_wrapper(*args):
  45         if args in runonce_ret:
  46             return runonce_ret[args]
  47         else:
  48             ret = function(*args)
  49             runonce_ret[args] = ret
  50             return ret
  51     return runonce_wrapper
  52
  53
  54 def ADD_LD_LIBRARY_PATH(path):
  55     '''add something to LD_LIBRARY_PATH'''
  56     if 'LD_LIBRARY_PATH' in os.environ:
  57         oldpath = os.environ['LD_LIBRARY_PATH']
  58     else:
  59         oldpath = ''
  60     newpath = oldpath.split(':')
  61     if not path in newpath:
  62         newpath.append(path)
  63         os.environ['LD_LIBRARY_PATH'] = ':'.join(newpath)
  64
  65
  66 def needs_private_lib(bld, target):
  67     '''return True if a target links to a private library'''
  68     for lib in getattr(target, "final_libs", []):
  69         t = bld.name_to_obj(lib, bld.env)
  70         if t and getattr(t, 'private_library', False):
  71             return True
  72     return False
  73
  74
  75 def install_rpath(target):
  76     '''the rpath value for installation'''
  77     bld = target.bld
  78     bld.env['RPATH'] = []
  79     ret = set()
  80     if bld.env.RPATH_ON_INSTALL:
  81         ret.add(bld.EXPAND_VARIABLES(bld.env.LIBDIR))
  82     if bld.env.RPATH_ON_INSTALL_PRIVATE and needs_private_lib(bld, target):
  83         ret.add(bld.EXPAND_VARIABLES(bld.env.PRIVATELIBDIR))
  84     return list(ret)
  85
  86
  87 def build_rpath(bld):
  88     '''the rpath value for build'''
  89     rpaths = [os.path.normpath('%s/%s' % (bld.env.BUILD_DIRECTORY, d)) for d in ("shared", "shared/private")]
  90     bld.env['RPATH'] = []
  91     if bld.env.RPATH_ON_BUILD:
  92         return rpaths
  93     for rpath in rpaths:
  94         ADD_LD_LIBRARY_PATH(rpath)
  95     return []
  96
  97
  98 @conf
  99 def LOCAL_CACHE(ctx, name):
 100     '''return a named build cache dictionary, used to store
 101        state inside other functions'''
 102     if name in ctx.env:
 103         return ctx.env[name]
 104     ctx.env[name] = {}
 105     return ctx.env[name]
 106
 107
 108 @conf
 109 def LOCAL_CACHE_SET(ctx, cachename, key, value):
 110     '''set a value in a local cache'''
 111     cache = LOCAL_CACHE(ctx, cachename)
 112     cache[key] = value
 113
 114
 115 @conf
 116 def ASSERT(ctx, expression, msg):
 117     '''a build assert call'''
 118     if not expression:
 119         raise Utils.WafError("ERROR: %s\n" % msg)
 120 Build.BuildContext.ASSERT = ASSERT
 121
 122
 123 def SUBDIR(bld, subdir, list):
 124     '''create a list of files by pre-pending each with a subdir name'''
 125     ret = ''
 126     for l in TO_LIST(list):
 127         ret = ret + os.path.normpath(os.path.join(subdir, l)) + ' '
 128     return ret
 129 Build.BuildContext.SUBDIR = SUBDIR
 130
 131
 132 def dict_concat(d1, d2):
 133     '''concatenate two dictionaries d1 += d2'''
 134     for t in d2:
 135         if t not in d1:
 136             d1[t] = d2[t]
 137
 138
 139 def exec_command(self, cmd, **kw):
 140     '''this overrides the 'waf -v' debug output to be in a nice
 141     unix like format instead of a python list.
 142     Thanks to ita on #waf for this'''
 143     import Utils, Logs
 144     _cmd = cmd
 145     if isinstance(cmd, list):
 146         _cmd = ' '.join(cmd)
 147     debug('runner: %s' % _cmd)
 148     if self.log:
 149         self.log.write('%s\n' % cmd)
 150         kw['log'] = self.log
 151     try:
 152         if not kw.get('cwd', None):
 153             kw['cwd'] = self.cwd
 154     except AttributeError:
 155         self.cwd = kw['cwd'] = self.bldnode.abspath()
 156     return Utils.exec_command(cmd, **kw)
 157 Build.BuildContext.exec_command = exec_command
 158
 159
 160 def ADD_COMMAND(opt, name, function):
 161     '''add a new top level command to waf'''
 162     Utils.g_module.__dict__[name] = function
 163     opt.name = function
 164 Options.Handler.ADD_COMMAND = ADD_COMMAND
 165
 166
 167 @feature('cc', 'cshlib', 'cprogram')
 168 @before('apply_core','exec_rule')
 169 def process_depends_on(self):
 170     '''The new depends_on attribute for build rules
 171        allow us to specify a dependency on output from
 172        a source generation rule'''
 173     if getattr(self , 'depends_on', None):
 174         lst = self.to_list(self.depends_on)
 175         for x in lst:
 176             y = self.bld.name_to_obj(x, self.env)
 177             self.bld.ASSERT(y is not None, "Failed to find dependency %s of %s" % (x, self.name))
 178             y.post()
 179             if getattr(y, 'more_includes', None):
 180                   self.includes += " " + y.more_includes
 181
 182
 183 os_path_relpath = getattr(os.path, 'relpath', None)
 184 if os_path_relpath is None:
 185     # Python < 2.6 does not have os.path.relpath, provide a replacement
 186     # (imported from Python2.6.5~rc2)
 187     def os_path_relpath(path, start):
 188         """Return a relative version of a path"""
 189         start_list = os.path.abspath(start).split("/")
 190         path_list = os.path.abspath(path).split("/")
 191
 192         # Work out how much of the filepath is shared by start and path.
 193         i = len(os.path.commonprefix([start_list, path_list]))
 194
 195         rel_list = ['..'] * (len(start_list)-i) + path_list[i:]
 196         if not rel_list:
 197             return start
 198         return os.path.join(*rel_list)
 199
 200
 201 def unique_list(seq):
 202     '''return a uniquified list in the same order as the existing list'''
 203     seen = {}
 204     result = []
 205     for item in seq:
 206         if item in seen: continue
 207         seen[item] = True
 208         result.append(item)
 209     return result
 210
 211
 212 def TO_LIST(str, delimiter=None):
 213     '''Split a list, preserving quoted strings and existing lists'''
 214     if str is None:
 215         return []
 216     if isinstance(str, list):
 217         # we need to return a new independent list...
 218         return list(str)
 219     if len(str) == 0:
 220         return []
 221     lst = str.split(delimiter)
 222     # the string may have had quotes in it, now we
 223     # check if we did have quotes, and use the slower shlex
 224     # if we need to
 225     for e in lst:
 226         if e[0] == '"':
 227             return shlex.split(str)
 228     return lst
 229
 230
 231 def subst_vars_error(string, env):
 232     '''substitute vars, throw an error if a variable is not defined'''
 233     lst = re.split('(\$\{\w+\})', string)
 234     out = []
 235     for v in lst:
 236         if re.match('\$\{\w+\}', v):
 237             vname = v[2:-1]
 238             if not vname in env:
 239                 raise KeyError("Failed to find variable %s in %s" % (vname, string))
 240             v = env[vname]
 241         out.append(v)
 242     return ''.join(out)
 243
 244
 245 @conf
 246 def SUBST_ENV_VAR(ctx, varname):
 247     '''Substitute an environment variable for any embedded variables'''
 248     return subst_vars_error(ctx.env[varname], ctx.env)
 249 Build.BuildContext.SUBST_ENV_VAR = SUBST_ENV_VAR
 250
 251
 252 def ENFORCE_GROUP_ORDERING(bld):
 253     '''enforce group ordering for the project. This
 254        makes the group ordering apply only when you specify
 255        a target with --target'''
 256     if Options.options.compile_targets:
 257         @feature('*')
 258         @before('exec_rule', 'apply_core', 'collect')
 259         def force_previous_groups(self):
 260             if getattr(self.bld, 'enforced_group_ordering', False):
 261                 return
 262             self.bld.enforced_group_ordering = True
 263
 264             def group_name(g):
 265                 tm = self.bld.task_manager
 266                 return [x for x in tm.groups_names if id(tm.groups_names[x]) == id(g)][0]
 267
 268             my_id = id(self)
 269             bld = self.bld
 270             stop = None
 271             for g in bld.task_manager.groups:
 272                 for t in g.tasks_gen:
 273                     if id(t) == my_id:
 274                         stop = id(g)
 275                         debug('group: Forcing up to group %s for target %s',
 276                               group_name(g), self.name or self.target)
 277                         break
 278                 if stop is not None:
 279                     break
 280             if stop is None:
 281                 return
 282
 283             for i in xrange(len(bld.task_manager.groups)):
 284                 g = bld.task_manager.groups[i]
 285                 bld.task_manager.current_group = i
 286                 if id(g) == stop:
 287                     break
 288                 debug('group: Forcing group %s', group_name(g))
 289                 for t in g.tasks_gen:
 290                     if not getattr(t, 'forced_groups', False):
 291                         debug('group: Posting %s', t.name or t.target)
 292                         t.forced_groups = True
 293                         t.post()
 294 Build.BuildContext.ENFORCE_GROUP_ORDERING = ENFORCE_GROUP_ORDERING
 295
 296
 297 def recursive_dirlist(dir, relbase, pattern=None):
 298     '''recursive directory list'''
 299     ret = []
 300     for f in os.listdir(dir):
 301         f2 = dir + '/' + f
 302         if os.path.isdir(f2):
 303             ret.extend(recursive_dirlist(f2, relbase))
 304         else:
 305             if pattern and not fnmatch.fnmatch(f, pattern):
 306                 continue
 307             ret.append(os_path_relpath(f2, relbase))
 308     return ret
 309
 310
 311 def mkdir_p(dir):
 312     '''like mkdir -p'''
 313     if not dir:
 314         return
 315     if dir.endswith("/"):
 316         mkdir_p(dir[:-1])
 317         return
 318     if os.path.isdir(dir):
 319         return
 320     mkdir_p(os.path.dirname(dir))
 321     os.mkdir(dir)
 322
 323
 324 def SUBST_VARS_RECURSIVE(string, env):
 325     '''recursively expand variables'''
 326     if string is None:
 327         return string
 328     limit=100
 329     while (string.find('${') != -1 and limit > 0):
 330         string = subst_vars_error(string, env)
 331         limit -= 1
 332     return string
 333
 334
 335 @conf
 336 def EXPAND_VARIABLES(ctx, varstr, vars=None):
 337     '''expand variables from a user supplied dictionary
 338
 339     This is most useful when you pass vars=locals() to expand
 340     all your local variables in strings
 341     '''
 342
 343     if isinstance(varstr, list):
 344         ret = []
 345         for s in varstr:
 346             ret.append(EXPAND_VARIABLES(ctx, s, vars=vars))
 347         return ret
 348
 349     if not isinstance(varstr, str):
 350         return varstr
 351
 352     import Environment
 353     env = Environment.Environment()
 354     ret = varstr
 355     # substitute on user supplied dict if avaiilable
 356     if vars is not None:
 357         for v in vars.keys():
 358             env[v] = vars[v]
 359         ret = SUBST_VARS_RECURSIVE(ret, env)
 360
 361     # if anything left, subst on the environment as well
 362     if ret.find('${') != -1:
 363         ret = SUBST_VARS_RECURSIVE(ret, ctx.env)
 364     # make sure there is nothing left. Also check for the common
 365     # typo of $( instead of ${
 366     if ret.find('${') != -1 or ret.find('$(') != -1:
 367         Logs.error('Failed to substitute all variables in varstr=%s' % ret)
 368         sys.exit(1)
 369     return ret
 370 Build.BuildContext.EXPAND_VARIABLES = EXPAND_VARIABLES
 371
 372
 373 def RUN_COMMAND(cmd,
 374                 env=None,
 375                 shell=False):
 376     '''run a external command, return exit code or signal'''
 377     if env:
 378         cmd = SUBST_VARS_RECURSIVE(cmd, env)
 379
 380     status = os.system(cmd)
 381     if os.WIFEXITED(status):
 382         return os.WEXITSTATUS(status)
 383     if os.WIFSIGNALED(status):
 384         return - os.WTERMSIG(status)
 385     Logs.error("Unknown exit reason %d for command: %s" (status, cmd))
 386     return -1
 387
 388
 389 def RUN_PYTHON_TESTS(testfiles, pythonpath=None):
 390     env = LOAD_ENVIRONMENT()
 391     if pythonpath is None:
 392         pythonpath = os.path.join(Utils.g_module.blddir, 'python')
 393     result = 0
 394     for interp in env.python_interpreters:
 395         for testfile in testfiles:
 396             cmd = "PYTHONPATH=%s %s %s" % (pythonpath, interp, testfile)
 397             print('Running Python test with %s: %s' % (interp, testfile))
 398             ret = RUN_COMMAND(cmd)
 399             if ret:
 400                 print('Python test failed: %s' % cmd)
 401                 result = ret
 402     return result
 403
 404
 405 # make sure we have md5. some systems don't have it
 406 try:
 407     from hashlib import md5
 408     # Even if hashlib.md5 exists, it may be unusable.
 409     # Try to use MD5 function. In FIPS mode this will cause an exception
 410     # and we'll get to the replacement code
 411     foo = md5('abcd')
 412 except:
 413     try:
 414         import md5
 415         # repeat the same check here, mere success of import is not enough.
 416         # Try to use MD5 function. In FIPS mode this will cause an exception
 417         foo = md5.md5('abcd')
 418     except:
 419         import Constants
 420         Constants.SIG_NIL = hash('abcd')
 421         class replace_md5(object):
 422             def __init__(self):
 423                 self.val = None
 424             def update(self, val):
 425                 self.val = hash((self.val, val))
 426             def digest(self):
 427                 return str(self.val)
 428             def hexdigest(self):
 429                 return self.digest().encode('hex')
 430         def replace_h_file(filename):
 431             f = open(filename, 'rb')
 432             m = replace_md5()
 433             while (filename):
 434                 filename = f.read(100000)
 435                 m.update(filename)
 436             f.close()
 437             return m.digest()
 438         Utils.md5 = replace_md5
 439         Task.md5 = replace_md5
 440         Utils.h_file = replace_h_file
 441
 442
 443 def LOAD_ENVIRONMENT():
 444     '''load the configuration environment, allowing access to env vars
 445        from new commands'''
 446     import Environment
 447     env = Environment.Environment()
 448     try:
 449         env.load('.lock-wscript')
 450         env.load(env.blddir + '/c4che/default.cache.py')
 451     except:
 452         pass
 453     return env
 454
 455
 456 def IS_NEWER(bld, file1, file2):
 457     '''return True if file1 is newer than file2'''
 458     t1 = os.stat(os.path.join(bld.curdir, file1)).st_mtime
 459     t2 = os.stat(os.path.join(bld.curdir, file2)).st_mtime
 460     return t1 > t2
 461 Build.BuildContext.IS_NEWER = IS_NEWER
 462
 463
 464 @conf
 465 def RECURSE(ctx, directory):
 466     '''recurse into a directory, relative to the curdir or top level'''
 467     try:
 468         visited_dirs = ctx.visited_dirs
 469     except:
 470         visited_dirs = ctx.visited_dirs = set()
 471     d = os.path.join(ctx.curdir, directory)
 472     if os.path.exists(d):
 473         abspath = os.path.abspath(d)
 474     else:
 475         abspath = os.path.abspath(os.path.join(Utils.g_module.srcdir, directory))
 476     ctxclass = ctx.__class__.__name__
 477     key = ctxclass + ':' + abspath
 478     if key in visited_dirs:
 479         # already done it
 480         return
 481     visited_dirs.add(key)
 482     relpath = os_path_relpath(abspath, ctx.curdir)
 483     if ctxclass == 'Handler':
 484         return ctx.sub_options(relpath)
 485     if ctxclass == 'ConfigurationContext':
 486         return ctx.sub_config(relpath)
 487     if ctxclass == 'BuildContext':
 488         return ctx.add_subdirs(relpath)
 489     Logs.error('Unknown RECURSE context class', ctxclass)
 490     raise
 491 Options.Handler.RECURSE = RECURSE
 492 Build.BuildContext.RECURSE = RECURSE
 493
 494
 495 def CHECK_MAKEFLAGS(bld):
 496     '''check for MAKEFLAGS environment variable in case we are being
 497     called from a Makefile try to honor a few make command line flags'''
 498     if not 'WAF_MAKE' in os.environ:
 499         return
 500     makeflags = os.environ.get('MAKEFLAGS')
 501     if makeflags is None:
 502         return
 503     jobs_set = False
 504     # we need to use shlex.split to cope with the escaping of spaces
 505     # in makeflags
 506     for opt in shlex.split(makeflags):
 507         # options can come either as -x or as x
 508         if opt[0:2] == 'V=':
 509             Options.options.verbose = Logs.verbose = int(opt[2:])
 510             if Logs.verbose > 0:
 511                 Logs.zones = ['runner']
 512             if Logs.verbose > 2:
 513                 Logs.zones = ['*']
 514         elif opt[0].isupper() and opt.find('=') != -1:
 515             # this allows us to set waf options on the make command line
 516             # for example, if you do "make FOO=blah", then we set the
 517             # option 'FOO' in Options.options, to blah. If you look in wafsamba/wscript
 518             # you will see that the command line accessible options have their dest=
 519             # set to uppercase, to allow for passing of options from make in this way
 520             # this is also how "make test TESTS=testpattern" works, and
 521             # "make VERBOSE=1" as well as things like "make SYMBOLCHECK=1"
 522             loc = opt.find('=')
 523             setattr(Options.options, opt[0:loc], opt[loc+1:])
 524         elif opt[0] != '-':
 525             for v in opt:
 526                 if v == 'j':
 527                     jobs_set = True
 528                 elif v == 'k':
 529                     Options.options.keep = True
 530         elif opt == '-j':
 531             jobs_set = True
 532         elif opt == '-k':
 533             Options.options.keep = True
 534     if not jobs_set:
 535         # default to one job
 536         Options.options.jobs = 1
 537
 538 Build.BuildContext.CHECK_MAKEFLAGS = CHECK_MAKEFLAGS
 539
 540 option_groups = {}
 541
 542 def option_group(opt, name):
 543     '''find or create an option group'''
 544     global option_groups
 545     if name in option_groups:
 546         return option_groups[name]
 547     gr = opt.add_option_group(name)
 548     option_groups[name] = gr
 549     return gr
 550 Options.Handler.option_group = option_group
 551
 552
 553 def save_file(filename, contents, create_dir=False):
 554     '''save data to a file'''
 555     if create_dir:
 556         mkdir_p(os.path.dirname(filename))
 557     try:
 558         f = open(filename, 'w')
 559         f.write(contents)
 560         f.close()
 561     except:
 562         return False
 563     return True
 564
 565
 566 def load_file(filename):
 567     '''return contents of a file'''
 568     try:
 569         f = open(filename, 'r')
 570         r = f.read()
 571         f.close()
 572     except:
 573         return None
 574     return r
 575
 576
 577 def reconfigure(ctx):
 578     '''rerun configure if necessary'''
 579     import Configure, samba_wildcard, Scripting
 580     if not os.path.exists(".lock-wscript"):
 581         raise Utils.WafError('configure has not been run')
 582     bld = samba_wildcard.fake_build_environment()
 583     Configure.autoconfig = True
 584     Scripting.check_configured(bld)
 585
 586
 587 def map_shlib_extension(ctx, name, python=False):
 588     '''map a filename with a shared library extension of .so to the real shlib name'''
 589     if name is None:
 590         return None
 591     if name[-1:].isdigit():
 592         # some libraries have specified versions in the wscript rule
 593         return name
 594     (root1, ext1) = os.path.splitext(name)
 595     if python:
 596         return ctx.env.pyext_PATTERN % root1
 597     else:
 598         (root2, ext2) = os.path.splitext(ctx.env.shlib_PATTERN)
 599     return root1+ext2
 600 Build.BuildContext.map_shlib_extension = map_shlib_extension
 601
 602 def apply_pattern(filename, pattern):
 603     '''apply a filename pattern to a filename that may have a directory component'''
 604     dirname = os.path.dirname(filename)
 605     if not dirname:
 606         return pattern % filename
 607     basename = os.path.basename(filename)
 608     return os.path.join(dirname, pattern % basename)
 609
 610 def make_libname(ctx, name, nolibprefix=False, version=None, python=False):
 611     """make a library filename
 612          Options:
 613               nolibprefix: don't include the lib prefix
 614               version    : add a version number
 615               python     : if we should use python module name conventions"""
 616
 617     if python:
 618         libname = apply_pattern(name, ctx.env.pyext_PATTERN)
 619     else:
 620         libname = apply_pattern(name, ctx.env.shlib_PATTERN)
 621     if nolibprefix and libname[0:3] == 'lib':
 622         libname = libname[3:]
 623     if version:
 624         if version[0] == '.':
 625             version = version[1:]
 626         (root, ext) = os.path.splitext(libname)
 627         if ext == ".dylib":
 628             # special case - version goes before the prefix
 629             libname = "%s.%s%s" % (root, version, ext)
 630         else:
 631             libname = "%s%s.%s" % (root, ext, version)
 632     return libname
 633 Build.BuildContext.make_libname = make_libname
 634
 635
 636 def get_tgt_list(bld):
 637     '''return a list of build objects for samba'''
 638
 639     targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
 640
 641     # build a list of task generators we are interested in
 642     tgt_list = []
 643     for tgt in targets:
 644         type = targets[tgt]
 645         if not type in ['SUBSYSTEM', 'MODULE', 'BINARY', 'LIBRARY', 'ASN1', 'PYTHON']:
 646             continue
 647         t = bld.name_to_obj(tgt, bld.env)
 648         if t is None:
 649             Logs.error("Target %s of type %s has no task generator" % (tgt, type))
 650             sys.exit(1)
 651         tgt_list.append(t)
 652     return tgt_list
 653
 654 from Constants import WSCRIPT_FILE
 655 def PROCESS_SEPARATE_RULE(self, rule):
 656     ''' cause waf to process additional script based on `rule'.
 657         You should have file named wscript_<stage>_rule in the current directory
 658         where stage is either 'configure' or 'build'
 659     '''
 660     ctxclass = self.__class__.__name__
 661     stage = ''
 662     if ctxclass == 'ConfigurationContext':
 663         stage = 'configure'
 664     elif ctxclass == 'BuildContext':
 665         stage = 'build'
 666     file_path = os.path.join(self.curdir, WSCRIPT_FILE+'_'+stage+'_'+rule)
 667     txt = load_file(file_path)
 668     if txt:
 669         dc = {'ctx': self}
 670         if getattr(self.__class__, 'pre_recurse', None):
 671             dc = self.pre_recurse(txt, file_path, self.curdir)
 672         exec(compile(txt, file_path, 'exec'), dc)
 673         if getattr(self.__class__, 'post_recurse', None):
 674             dc = self.post_recurse(txt, file_path, self.curdir)
 675
 676 Build.BuildContext.PROCESS_SEPARATE_RULE = PROCESS_SEPARATE_RULE
 677 ConfigurationContext.PROCESS_SEPARATE_RULE = PROCESS_SEPARATE_RULE
 678
 679 def AD_DC_BUILD_IS_ENABLED(self):
 680     if self.CONFIG_SET('AD_DC_BUILD_IS_ENABLED'):
 681         return True
 682     return False
 683
 684 Build.BuildContext.AD_DC_BUILD_IS_ENABLED = AD_DC_BUILD_IS_ENABLED