1 # Samba automatic dependency handling and project rules
3 import os, sys, re, time
5 import Build, Environment, Options, Logs, Utils
7 from Configure import conf
9 from samba_bundled import BUILTIN_LIBRARY
10 from samba_utils import LOCAL_CACHE, TO_LIST, get_tgt_list, unique_list, os_path_relpath
11 from samba_autoconf import library_flags
14 def ADD_GLOBAL_DEPENDENCY(ctx, dep):
15 '''add a dependency for all binaries and libraries'''
16 if not 'GLOBAL_DEPENDENCIES' in ctx.env:
17 ctx.env.GLOBAL_DEPENDENCIES = []
18 ctx.env.GLOBAL_DEPENDENCIES.append(dep)
22 def BREAK_CIRCULAR_LIBRARY_DEPENDENCIES(ctx):
23 '''indicate that circular dependencies between libraries should be broken.'''
24 ctx.env.ALLOW_CIRCULAR_LIB_DEPENDENCIES = True
28 def SET_SYSLIB_DEPS(conf, target, deps):
29 '''setup some implied dependencies for a SYSLIB'''
30 cache = LOCAL_CACHE(conf, 'SYSLIB_DEPS')
34 def expand_subsystem_deps(bld):
35 '''expand the reverse dependencies resulting from subsystem
36 attributes of modules. This is walking over the complete list
37 of declared subsystems, and expands the samba_deps_extended list for any
38 module<->subsystem dependencies'''
40 subsystem_list = LOCAL_CACHE(bld, 'INIT_FUNCTIONS')
41 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
43 for subsystem_name in subsystem_list:
44 bld.ASSERT(subsystem_name in targets, "Subsystem target %s not declared" % subsystem_name)
45 type = targets[subsystem_name]
46 if type == 'DISABLED' or type == 'EMPTY':
50 # subsystem_name = dcerpc_server (a subsystem)
51 # subsystem = dcerpc_server (a subsystem object)
52 # module_name = rpc_epmapper (a module within the dcerpc_server subsystem)
53 # module = rpc_epmapper (a module object within the dcerpc_server subsystem)
55 subsystem = bld.get_tgen_by_name(subsystem_name)
56 bld.ASSERT(subsystem is not None, "Unable to find subsystem %s" % subsystem_name)
57 for d in subsystem_list[subsystem_name]:
58 module_name = d['TARGET']
59 module_type = targets[module_name]
60 if module_type in ['DISABLED', 'EMPTY']:
62 bld.ASSERT(subsystem is not None,
63 "Subsystem target %s for %s (%s) not found" % (subsystem_name, module_name, module_type))
64 if module_type in ['SUBSYSTEM']:
65 # if a module is a plain object type (not a library) then the
66 # subsystem it is part of needs to have it as a dependency, so targets
67 # that depend on this subsystem get the modules of that subsystem
68 subsystem.samba_deps_extended.append(module_name)
69 subsystem.samba_deps_extended = unique_list(subsystem.samba_deps_extended)
73 def build_dependencies(self):
74 '''This builds the dependency list for a target. It runs after all the targets are declared
76 The reason this is not just done in the SAMBA_*() rules is that we have no way of knowing
77 the full dependency list for a target until we have all of the targets declared.
80 if self.samba_type in ['LIBRARY', 'BINARY', 'PYTHON']:
81 self.uselib = list(self.final_syslibs)
82 self.uselib_local = list(self.final_libs)
83 self.add_objects = list(self.final_objects)
85 # extra link flags from pkg_config
86 libs = self.final_syslibs.copy()
88 (cflags, ldflags, cpppath) = library_flags(self, list(libs))
89 new_ldflags = getattr(self, 'samba_ldflags', [])[:]
90 new_ldflags.extend(ldflags)
91 self.ldflags = new_ldflags
93 if getattr(self, 'allow_undefined_symbols', False) and self.env.undefined_ldflags:
94 for f in self.env.undefined_ldflags:
95 self.ldflags.remove(f)
97 if getattr(self, 'allow_undefined_symbols', False) and self.env.undefined_ignore_ldflags:
98 for f in self.env.undefined_ignore_ldflags:
99 self.ldflags.append(f)
101 debug('deps: computed dependencies for target %s: uselib=%s uselib_local=%s add_objects=%s',
102 self.sname, self.uselib, self.uselib_local, self.add_objects)
104 if self.samba_type in ['SUBSYSTEM']:
105 # this is needed for the cflags of libs that come from pkg_config
106 self.uselib = list(self.final_syslibs)
107 self.uselib.extend(list(self.direct_syslibs))
108 for lib in self.final_libs:
109 t = self.bld.get_tgen_by_name(lib)
110 self.uselib.extend(list(t.final_syslibs))
111 self.uselib = unique_list(self.uselib)
113 if getattr(self, 'uselib', None):
115 for l in self.uselib:
116 up_list.append(l.upper())
117 self.uselib = up_list
120 def build_includes(self):
121 '''This builds the right set of includes for a target.
123 One tricky part of this is that the includes= attribute for a
124 target needs to use paths which are relative to that targets
125 declaration directory (which we can get at via t.path).
127 The way this works is the includes list gets added as
128 samba_includes in the main build task declaration. Then this
129 function runs after all of the tasks are declared, and it
130 processes the samba_includes attribute to produce a includes=
134 if getattr(self, 'samba_includes', None) is None:
139 inc_deps = includes_objects(bld, self, set(), {})
143 # maybe add local includes
144 if getattr(self, 'local_include', True) and getattr(self, 'local_include_first', True):
147 includes.extend(self.samba_includes_extended)
149 if 'EXTRA_INCLUDES' in bld.env and getattr(self, 'global_include', True):
150 includes.extend(bld.env['EXTRA_INCLUDES'])
158 t = bld.get_tgen_by_name(d)
159 bld.ASSERT(t is not None, "Unable to find dependency %s for %s" % (d, self.sname))
160 inclist = getattr(t, 'samba_includes_extended', [])[:]
161 if getattr(t, 'local_include', True):
165 tpath = t.samba_abspath
167 npath = tpath + '/' + inc
168 if not npath in inc_set:
169 inc_abs.append(npath)
172 mypath = self.path.abspath(bld.env)
174 relpath = os_path_relpath(inc, mypath)
175 includes.append(relpath)
177 if getattr(self, 'local_include', True) and not getattr(self, 'local_include_first', True):
180 # now transform the includes list to be relative to the top directory
181 # which is represented by '#' in waf. This allows waf to cache the
182 # includes lists more efficiently
186 # some are already top based
187 includes_top.append(i)
189 absinc = os.path.join(self.path.abspath(), i)
190 relinc = os_path_relpath(absinc, self.bld.srcnode.abspath())
191 includes_top.append('#' + relinc)
193 self.includes = unique_list(includes_top)
194 debug('deps: includes for target %s: includes=%s',
195 self.sname, self.includes)
198 def add_init_functions(self):
199 '''This builds the right set of init functions'''
203 subsystems = LOCAL_CACHE(bld, 'INIT_FUNCTIONS')
205 # cope with the separated object lists from BINARY and LIBRARY targets
207 if sname.endswith('.objlist'):
211 if sname in subsystems:
212 modules.append(sname)
214 m = getattr(self, 'samba_modules', None)
216 modules.extend(TO_LIST(m))
218 m = getattr(self, 'samba_subsystem', None)
222 if 'pyembed' in self.features:
225 sentinel = getattr(self, 'init_function_sentinel', 'NULL')
227 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
228 cflags = getattr(self, 'samba_cflags', [])[:]
231 sname = sname.replace('-','_')
232 sname = sname.replace('.','_')
233 sname = sname.replace('/','_')
234 cflags.append('-DSTATIC_%s_MODULES=%s' % (sname, sentinel))
235 if sentinel == 'NULL':
236 proto = "extern void __%s_dummy_module_proto(void)" % (sname)
237 cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (sname, proto))
242 bld.ASSERT(m in subsystems,
243 "No init_function defined for module '%s' in target '%s'" % (m, self.sname))
245 for d in subsystems[m]:
246 if targets[d['TARGET']] != 'DISABLED':
247 init_fn_list.append(d['INIT_FUNCTION'])
248 if init_fn_list == []:
249 cflags.append('-DSTATIC_%s_MODULES=%s' % (m, sentinel))
250 if sentinel == 'NULL':
251 proto = "extern void __%s_dummy_module_proto(void)" % (m)
252 cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (m, proto))
254 cflags.append('-DSTATIC_%s_MODULES=%s' % (m, ','.join(init_fn_list) + ',' + sentinel))
256 for f in init_fn_list:
257 proto += '_MODULE_PROTO(%s)' % f
258 proto += "extern void __%s_dummy_module_proto(void)" % (m)
259 cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (m, proto))
263 def check_duplicate_sources(bld, tgt_list):
264 '''see if we are compiling the same source file more than once'''
266 debug('deps: checking for duplicate sources')
267 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
270 source_list = TO_LIST(getattr(t, 'source', ''))
271 tpath = os.path.normpath(os_path_relpath(t.path.abspath(bld.env), t.env.BUILD_DIRECTORY + '/default'))
273 for s in source_list:
274 if not isinstance(s, str):
275 print('strange path in check_duplicate_sources %r' % s)
277 p = os.path.normpath(os.path.join(tpath, s))
279 Logs.error("ERROR: source %s appears twice in target '%s'" % (p, t.sname))
282 t.samba_source_set = obj_sources
286 # build a list of targets that each source file is part of
288 if not targets[t.sname] in [ 'LIBRARY', 'BINARY', 'PYTHON' ]:
290 for obj in t.add_objects:
291 t2 = t.bld.get_tgen_by_name(obj)
292 source_set = getattr(t2, 'samba_source_set', set())
294 if not s in subsystems:
296 if not t.sname in subsystems[s]:
297 subsystems[s][t.sname] = []
298 subsystems[s][t.sname].append(t2.sname)
301 if len(subsystems[s]) > 1 and Options.options.SHOW_DUPLICATES:
302 Logs.warn("WARNING: source %s is in more than one target: %s" % (s, subsystems[s].keys()))
303 for tname in subsystems[s]:
304 if len(subsystems[s][tname]) > 1:
305 raise Utils.WafError("ERROR: source %s is in more than one subsystem of target '%s': %s" % (s, tname, subsystems[s][tname]))
309 def check_group_ordering(bld, tgt_list):
310 '''see if we have any dependencies that violate the group ordering
312 It is an error for a target to depend on a target from a later
317 tm = bld.task_manager
318 return [x for x in tm.groups_names if id(tm.groups_names[x]) == id(g)][0]
320 for g in bld.task_manager.groups:
321 gname = group_name(g)
322 for t in g.tasks_gen:
323 t.samba_group = gname
327 for g in bld.task_manager.groups:
332 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
336 tdeps = getattr(t, 'add_objects', []) + getattr(t, 'uselib_local', [])
338 t2 = bld.get_tgen_by_name(d)
341 map1 = grp_map[t.samba_group]
342 map2 = grp_map[t2.samba_group]
345 Logs.error("Target %r in build group %r depends on target %r from later build group %r" % (
346 t.sname, t.samba_group, t2.sname, t2.samba_group))
350 Build.BuildContext.check_group_ordering = check_group_ordering
352 def show_final_deps(bld, tgt_list):
353 '''show the final dependencies for all targets'''
355 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
358 if not targets[t.sname] in ['LIBRARY', 'BINARY', 'PYTHON', 'SUBSYSTEM']:
360 debug('deps: final dependencies for target %s: uselib=%s uselib_local=%s add_objects=%s',
361 t.sname, t.uselib, getattr(t, 'uselib_local', []), getattr(t, 'add_objects', []))
364 def add_samba_attributes(bld, tgt_list):
365 '''ensure a target has a the required samba attributes'''
367 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
374 t.samba_type = targets[t.sname]
375 t.samba_abspath = t.path.abspath(bld.env)
376 t.samba_deps_extended = t.samba_deps[:]
377 t.samba_includes_extended = TO_LIST(t.samba_includes)[:]
378 t.cflags = getattr(t, 'samba_cflags', '')
380 def replace_grouping_libraries(bld, tgt_list):
381 '''replace dependencies based on grouping libraries
383 If a library is marked as a grouping library, then any target that
384 depends on a subsystem that is part of that grouping library gets
385 that dependency replaced with a dependency on the grouping library
388 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
392 # find our list of grouping libraries, mapped from the subsystems they depend on
394 if not getattr(t, 'grouping_library', False):
396 for dep in t.samba_deps_extended:
397 bld.ASSERT(dep in targets, "grouping library target %s not declared in %s" % (dep, t.sname))
398 if targets[dep] == 'SUBSYSTEM':
399 grouping[dep] = t.sname
401 # now replace any dependencies on elements of grouping libraries
403 for i in range(len(t.samba_deps_extended)):
404 dep = t.samba_deps_extended[i]
406 if t.sname != grouping[dep]:
407 debug("deps: target %s: replacing dependency %s with grouping library %s" % (t.sname, dep, grouping[dep]))
408 t.samba_deps_extended[i] = grouping[dep]
412 def build_direct_deps(bld, tgt_list):
413 '''build the direct_objects and direct_libs sets for each target'''
415 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
416 syslib_deps = LOCAL_CACHE(bld, 'SYSLIB_DEPS')
418 global_deps = bld.env.GLOBAL_DEPENDENCIES
419 global_deps_exclude = set()
420 for dep in global_deps:
421 t = bld.get_tgen_by_name(dep)
422 for d in t.samba_deps:
423 # prevent loops from the global dependencies list
424 global_deps_exclude.add(d)
425 global_deps_exclude.add(d + '.objlist')
428 t.direct_objects = set()
429 t.direct_libs = set()
430 t.direct_syslibs = set()
431 deps = t.samba_deps_extended[:]
432 if getattr(t, 'samba_use_global_deps', False) and not t.sname in global_deps_exclude:
433 deps.extend(global_deps)
435 if d == t.sname: continue
437 Logs.error("Unknown dependency '%s' in '%s'" % (d, t.sname))
439 if targets[d] in [ 'EMPTY', 'DISABLED' ]:
441 if targets[d] == 'PYTHON' and targets[t.sname] != 'PYTHON' and t.sname.find('.objlist') == -1:
442 # this check should be more restrictive, but for now we have pidl-generated python
443 # code that directly depends on other python modules
444 Logs.error('ERROR: Target %s has dependency on python module %s' % (t.sname, d))
446 if targets[d] == 'SYSLIB':
447 t.direct_syslibs.add(d)
449 for implied in TO_LIST(syslib_deps[d]):
450 if BUILTIN_LIBRARY(bld, implied):
451 t.direct_objects.add(implied)
452 elif targets[implied] == 'SYSLIB':
453 t.direct_syslibs.add(implied)
454 elif targets[implied] in ['LIBRARY', 'MODULE']:
455 t.direct_libs.add(implied)
457 Logs.error('Implied dependency %s in %s is of type %s' % (
458 implied, t.sname, targets[implied]))
461 t2 = bld.get_tgen_by_name(d)
463 Logs.error("no task %s of type %s in %s" % (d, targets[d], t.sname))
465 if t2.samba_type in [ 'LIBRARY', 'MODULE' ]:
467 elif t2.samba_type in [ 'SUBSYSTEM', 'ASN1', 'PYTHON' ]:
468 t.direct_objects.add(d)
469 debug('deps: built direct dependencies')
472 def dependency_loop(loops, t, target):
473 '''add a dependency loop to the loops dictionary'''
474 if t.sname == target:
476 if not target in loops:
477 loops[target] = set()
478 if not t.sname in loops[target]:
479 loops[target].add(t.sname)
482 def indirect_libs(bld, t, chain, loops):
483 '''recursively calculate the indirect library dependencies for a target
485 An indirect library is a library that results from a dependency on
489 ret = getattr(t, 'indirect_libs', None)
494 for obj in t.direct_objects:
496 dependency_loop(loops, t, obj)
499 t2 = bld.get_tgen_by_name(obj)
500 r2 = indirect_libs(bld, t2, chain, loops)
502 ret = ret.union(t2.direct_libs)
505 for obj in indirect_objects(bld, t, set(), loops):
507 dependency_loop(loops, t, obj)
510 t2 = bld.get_tgen_by_name(obj)
511 r2 = indirect_libs(bld, t2, chain, loops)
513 ret = ret.union(t2.direct_libs)
516 t.indirect_libs = ret
521 def indirect_objects(bld, t, chain, loops):
522 '''recursively calculate the indirect object dependencies for a target
524 indirect objects are the set of objects from expanding the
525 subsystem dependencies
528 ret = getattr(t, 'indirect_objects', None)
529 if ret is not None: return ret
532 for lib in t.direct_objects:
534 dependency_loop(loops, t, lib)
537 t2 = bld.get_tgen_by_name(lib)
538 r2 = indirect_objects(bld, t2, chain, loops)
540 ret = ret.union(t2.direct_objects)
543 t.indirect_objects = ret
547 def extended_objects(bld, t, chain):
548 '''recursively calculate the extended object dependencies for a target
550 extended objects are the union of:
553 - direct and indirect objects of all direct and indirect libraries
556 ret = getattr(t, 'extended_objects', None)
557 if ret is not None: return ret
560 ret = ret.union(t.final_objects)
562 for lib in t.final_libs:
565 t2 = bld.get_tgen_by_name(lib)
567 r2 = extended_objects(bld, t2, chain)
569 ret = ret.union(t2.final_objects)
572 t.extended_objects = ret
576 def includes_objects(bld, t, chain, inc_loops):
577 '''recursively calculate the includes object dependencies for a target
579 includes dependencies come from either library or object dependencies
581 ret = getattr(t, 'includes_objects', None)
585 ret = t.direct_objects.copy()
586 ret = ret.union(t.direct_libs)
588 for obj in t.direct_objects:
590 dependency_loop(inc_loops, t, obj)
593 t2 = bld.get_tgen_by_name(obj)
594 r2 = includes_objects(bld, t2, chain, inc_loops)
596 ret = ret.union(t2.direct_objects)
599 for lib in t.direct_libs:
601 dependency_loop(inc_loops, t, lib)
604 t2 = bld.get_tgen_by_name(lib)
606 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
607 Logs.error('Target %s of type %s not found in direct_libs for %s' % (
608 lib, targets[lib], t.sname))
610 r2 = includes_objects(bld, t2, chain, inc_loops)
612 ret = ret.union(t2.direct_objects)
615 t.includes_objects = ret
619 def break_dependency_loops(bld, tgt_list):
620 '''find and break dependency loops'''
624 # build up the list of loops
626 indirect_objects(bld, t, set(), loops)
627 indirect_libs(bld, t, set(), loops)
628 includes_objects(bld, t, set(), inc_loops)
633 for attr in ['direct_objects', 'indirect_objects', 'direct_libs', 'indirect_libs']:
634 objs = getattr(t, attr, set())
635 setattr(t, attr, objs.difference(loops[t.sname]))
638 debug('deps: Found dependency loops for target %s : %s', loop, loops[loop])
640 for loop in inc_loops:
641 debug('deps: Found include loops for target %s : %s', loop, inc_loops[loop])
643 # expand the loops mapping by one level
644 for loop in loops.copy():
645 for tgt in loops[loop]:
647 loops[loop] = loops[loop].union(loops[tgt])
649 for loop in inc_loops.copy():
650 for tgt in inc_loops[loop]:
652 inc_loops[loop] = inc_loops[loop].union(inc_loops[tgt])
655 # expand indirect subsystem and library loops
656 for loop in loops.copy():
657 t = bld.get_tgen_by_name(loop)
658 if t.samba_type in ['SUBSYSTEM']:
659 loops[loop] = loops[loop].union(t.indirect_objects)
660 loops[loop] = loops[loop].union(t.direct_objects)
661 if t.samba_type in ['LIBRARY','PYTHON']:
662 loops[loop] = loops[loop].union(t.indirect_libs)
663 loops[loop] = loops[loop].union(t.direct_libs)
664 if loop in loops[loop]:
665 loops[loop].remove(loop)
667 # expand indirect includes loops
668 for loop in inc_loops.copy():
669 t = bld.get_tgen_by_name(loop)
670 inc_loops[loop] = inc_loops[loop].union(t.includes_objects)
671 if loop in inc_loops[loop]:
672 inc_loops[loop].remove(loop)
674 # add in the replacement dependencies
677 for attr in ['indirect_objects', 'indirect_libs']:
678 objs = getattr(t, attr, set())
680 diff = loops[loop].difference(objs)
684 debug('deps: Expanded target %s of type %s from loop %s by %s', t.sname, t.samba_type, loop, diff)
685 objs = objs.union(diff)
686 setattr(t, attr, objs)
688 for loop in inc_loops:
689 objs = getattr(t, 'includes_objects', set())
691 diff = inc_loops[loop].difference(objs)
695 debug('deps: Expanded target %s includes of type %s from loop %s by %s', t.sname, t.samba_type, loop, diff)
696 objs = objs.union(diff)
697 setattr(t, 'includes_objects', objs)
700 def reduce_objects(bld, tgt_list):
701 '''reduce objects by looking for indirect object dependencies'''
705 t.extended_objects = None
709 for type in ['BINARY', 'PYTHON', 'LIBRARY']:
711 if t.samba_type != type: continue
712 # if we will indirectly link to a target then we don't need it
713 new = t.final_objects.copy()
714 for l in t.final_libs:
715 t2 = bld.get_tgen_by_name(l)
716 t2_obj = extended_objects(bld, t2, set())
717 dup = new.intersection(t2_obj)
718 if t.sname in rely_on:
719 dup = dup.difference(rely_on[t.sname])
721 debug('deps: removing dups from %s of type %s: %s also in %s %s',
722 t.sname, t.samba_type, dup, t2.samba_type, l)
723 new = new.difference(dup)
727 rely_on[l] = rely_on[l].union(dup)
728 t.final_objects = new
733 # add back in any objects that were relied upon by the reduction rules
735 t = bld.get_tgen_by_name(r)
736 t.final_objects = t.final_objects.union(rely_on[r])
741 def show_library_loop(bld, lib1, lib2, path, seen):
742 '''show the detailed path of a library loop between lib1 and lib2'''
744 t = bld.get_tgen_by_name(lib1)
745 if not lib2 in getattr(t, 'final_libs', set()):
748 for d in t.samba_deps_extended:
752 path2 = path + '=>' + d
754 Logs.warn('library loop path: ' + path2)
756 show_library_loop(bld, d, lib2, path2, seen)
760 def calculate_final_deps(bld, tgt_list, loops):
761 '''calculate the final library and object dependencies'''
763 # start with the maximum possible list
764 t.final_libs = t.direct_libs.union(indirect_libs(bld, t, set(), loops))
765 t.final_objects = t.direct_objects.union(indirect_objects(bld, t, set(), loops))
768 # don't depend on ourselves
769 if t.sname in t.final_libs:
770 t.final_libs.remove(t.sname)
771 if t.sname in t.final_objects:
772 t.final_objects.remove(t.sname)
774 # handle any non-shared binaries
776 if t.samba_type == 'BINARY' and bld.NONSHARED_BINARY(t.sname):
777 subsystem_list = LOCAL_CACHE(bld, 'INIT_FUNCTIONS')
778 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
780 # replace lib deps with objlist deps
781 for l in t.final_libs:
782 objname = l + '.objlist'
783 t2 = bld.get_tgen_by_name(objname)
785 Logs.error('ERROR: subsystem %s not found' % objname)
787 t.final_objects.add(objname)
788 t.final_objects = t.final_objects.union(extended_objects(bld, t2, set()))
789 if l in subsystem_list:
790 # its a subsystem - we also need the contents of any modules
791 for d in subsystem_list[l]:
792 module_name = d['TARGET']
793 if targets[module_name] == 'LIBRARY':
794 objname = module_name + '.objlist'
795 elif targets[module_name] == 'SUBSYSTEM':
796 objname = module_name
799 t2 = bld.get_tgen_by_name(objname)
801 Logs.error('ERROR: subsystem %s not found' % objname)
803 t.final_objects.add(objname)
804 t.final_objects = t.final_objects.union(extended_objects(bld, t2, set()))
807 # find any library loops
809 if t.samba_type in ['LIBRARY', 'PYTHON']:
810 for l in t.final_libs.copy():
811 t2 = bld.get_tgen_by_name(l)
812 if t.sname in t2.final_libs:
813 if getattr(bld.env, "ALLOW_CIRCULAR_LIB_DEPENDENCIES", False):
814 # we could break this in either direction. If one of the libraries
815 # has a version number, and will this be distributed publicly, then
816 # we should make it the lower level library in the DAG
817 Logs.warn('deps: removing library loop %s from %s' % (t.sname, t2.sname))
818 dependency_loop(loops, t, t2.sname)
819 t2.final_libs.remove(t.sname)
821 Logs.error('ERROR: circular library dependency between %s and %s'
822 % (t.sname, t2.sname))
823 show_library_loop(bld, t.sname, t2.sname, t.sname, set())
824 show_library_loop(bld, t2.sname, t.sname, t2.sname, set())
828 debug('deps: Found dependency loops for target %s : %s', loop, loops[loop])
830 # we now need to make corrections for any library loops we broke up
831 # any target that depended on the target of the loop and doesn't
832 # depend on the source of the loop needs to get the loop source added
833 for type in ['BINARY','PYTHON','LIBRARY','BINARY']:
835 if t.samba_type != type: continue
837 if loop in t.final_libs:
838 diff = loops[loop].difference(t.final_libs)
843 # make sure we don't recreate the loop again!
844 for d in diff.copy():
845 t2 = bld.get_tgen_by_name(d)
846 if t2.samba_type == 'LIBRARY':
847 if t.sname in t2.final_libs:
848 debug('deps: removing expansion %s from %s', d, t.sname)
851 debug('deps: Expanded target %s by loop %s libraries (loop %s) %s', t.sname, loop,
853 t.final_libs = t.final_libs.union(diff)
855 # remove objects that are also available in linked libs
857 while reduce_objects(bld, tgt_list):
860 Logs.warn("WARNING: Unable to remove all inter-target object duplicates")
862 debug('deps: Object reduction took %u iterations', count)
864 # add in any syslib dependencies
866 if not t.samba_type in ['BINARY','PYTHON','LIBRARY','SUBSYSTEM']:
869 for d in t.final_objects:
870 t2 = bld.get_tgen_by_name(d)
871 syslibs = syslibs.union(t2.direct_syslibs)
872 # this adds the indirect syslibs as well, which may not be needed
873 # depending on the linker flags
874 for d in t.final_libs:
875 t2 = bld.get_tgen_by_name(d)
876 syslibs = syslibs.union(t2.direct_syslibs)
877 t.final_syslibs = syslibs
880 # find any unresolved library loops
881 lib_loop_error = False
883 if t.samba_type in ['LIBRARY', 'PYTHON']:
884 for l in t.final_libs.copy():
885 t2 = bld.get_tgen_by_name(l)
886 if t.sname in t2.final_libs:
887 Logs.error('ERROR: Unresolved library loop %s from %s' % (t.sname, t2.sname))
888 lib_loop_error = True
892 debug('deps: removed duplicate dependencies')
895 def show_dependencies(bld, target, seen):
896 '''recursively show the dependencies of target'''
901 t = bld.get_tgen_by_name(target)
903 Logs.error("ERROR: Unable to find target '%s'" % target)
906 Logs.info('%s(OBJECTS): %s' % (target, t.direct_objects))
907 Logs.info('%s(LIBS): %s' % (target, t.direct_libs))
908 Logs.info('%s(SYSLIBS): %s' % (target, t.direct_syslibs))
912 for t2 in t.direct_objects:
913 show_dependencies(bld, t2, seen)
916 def show_object_duplicates(bld, tgt_list):
917 '''show a list of object files that are included in more than
918 one library or binary'''
920 targets = LOCAL_CACHE(bld, 'TARGET_TYPE')
924 Logs.info("showing duplicate objects")
927 if not targets[t.sname] in [ 'LIBRARY', 'PYTHON' ]:
929 for n in getattr(t, 'final_objects', set()):
930 t2 = bld.get_tgen_by_name(n)
933 used_by[n].add(t.sname)
936 if len(used_by[n]) > 1:
937 Logs.info("target '%s' is used by %s" % (n, used_by[n]))
939 Logs.info("showing indirect dependency counts (sorted by count)")
941 def indirect_count(t1, t2):
942 return len(t2.indirect_objects) - len(t1.indirect_objects)
944 sorted_list = sorted(tgt_list, cmp=indirect_count)
945 for t in sorted_list:
946 if len(t.indirect_objects) > 1:
947 Logs.info("%s depends on %u indirect objects" % (t.sname, len(t.indirect_objects)))
950 ######################################################################
951 # this provides a way to save our dependency calculations between runs
953 savedeps_inputs = ['samba_deps', 'samba_includes', 'local_include', 'local_include_first', 'samba_cflags',
954 'source', 'grouping_library', 'samba_ldflags', 'allow_undefined_symbols',
955 'use_global_deps', 'global_include' ]
956 savedeps_outputs = ['uselib', 'uselib_local', 'add_objects', 'includes',
957 'cflags', 'ldflags', 'samba_deps_extended', 'final_libs']
958 savedeps_outenv = ['INC_PATHS']
959 savedeps_envvars = ['NONSHARED_BINARIES', 'GLOBAL_DEPENDENCIES', 'EXTRA_CFLAGS', 'EXTRA_LDFLAGS', 'EXTRA_INCLUDES' ]
960 savedeps_caches = ['GLOBAL_DEPENDENCIES', 'TARGET_TYPE', 'INIT_FUNCTIONS', 'SYSLIB_DEPS']
961 savedeps_files = ['buildtools/wafsamba/samba_deps.py']
963 def save_samba_deps(bld, tgt_list):
964 '''save the dependency calculations between builds, to make
965 further builds faster'''
966 denv = Environment.Environment()
968 denv.version = savedeps_version
969 denv.savedeps_inputs = savedeps_inputs
970 denv.savedeps_outputs = savedeps_outputs
978 for f in savedeps_files:
979 denv.files[f] = os.stat(os.path.join(bld.srcnode.abspath(), f)).st_mtime
981 for c in savedeps_caches:
982 denv.caches[c] = LOCAL_CACHE(bld, c)
984 for e in savedeps_envvars:
985 denv.envvar[e] = bld.env[e]
988 # save all the input attributes for each target
990 for attr in savedeps_inputs:
991 v = getattr(t, attr, None)
995 denv.input[t.sname] = tdeps
997 # save all the output attributes for each target
999 for attr in savedeps_outputs:
1000 v = getattr(t, attr, None)
1004 denv.output[t.sname] = tdeps
1007 for attr in savedeps_outenv:
1009 tdeps[attr] = t.env[attr]
1011 denv.outenv[t.sname] = tdeps
1013 depsfile = os.path.join(bld.bdir, "sambadeps")
1014 denv.store_fast(depsfile)
1018 def load_samba_deps(bld, tgt_list):
1019 '''load a previous set of build dependencies if possible'''
1020 depsfile = os.path.join(bld.bdir, "sambadeps")
1021 denv = Environment.Environment()
1023 debug('deps: checking saved dependencies')
1024 denv.load_fast(depsfile)
1025 if (denv.version != savedeps_version or
1026 denv.savedeps_inputs != savedeps_inputs or
1027 denv.savedeps_outputs != savedeps_outputs):
1032 # check if critical files have changed
1033 for f in savedeps_files:
1034 if f not in denv.files:
1036 if denv.files[f] != os.stat(os.path.join(bld.srcnode.abspath(), f)).st_mtime:
1039 # check if caches are the same
1040 for c in savedeps_caches:
1041 if c not in denv.caches or denv.caches[c] != LOCAL_CACHE(bld, c):
1044 # check if caches are the same
1045 for e in savedeps_envvars:
1046 if e not in denv.envvar or denv.envvar[e] != bld.env[e]:
1049 # check inputs are the same
1052 for attr in savedeps_inputs:
1053 v = getattr(t, attr, None)
1056 if t.sname in denv.input:
1057 olddeps = denv.input[t.sname]
1060 if tdeps != olddeps:
1061 #print '%s: \ntdeps=%s \nodeps=%s' % (t.sname, tdeps, olddeps)
1064 # put outputs in place
1066 if not t.sname in denv.output: continue
1067 tdeps = denv.output[t.sname]
1069 setattr(t, a, tdeps[a])
1071 # put output env vars in place
1073 if not t.sname in denv.outenv: continue
1074 tdeps = denv.outenv[t.sname]
1078 debug('deps: loaded saved dependencies')
1083 def check_project_rules(bld):
1084 '''check the project rules - ensuring the targets are sane'''
1089 tgt_list = get_tgt_list(bld)
1091 add_samba_attributes(bld, tgt_list)
1093 force_project_rules = (Options.options.SHOWDEPS or
1094 Options.options.SHOW_DUPLICATES)
1096 if not force_project_rules and load_samba_deps(bld, tgt_list):
1100 tstart = time.clock()
1102 bld.new_rules = True
1103 Logs.info("Checking project rules ...")
1105 debug('deps: project rules checking started')
1107 expand_subsystem_deps(bld)
1109 debug("deps: expand_subsystem_deps: %f" % (time.clock() - tstart))
1111 replace_grouping_libraries(bld, tgt_list)
1113 debug("deps: replace_grouping_libraries: %f" % (time.clock() - tstart))
1115 build_direct_deps(bld, tgt_list)
1117 debug("deps: build_direct_deps: %f" % (time.clock() - tstart))
1119 break_dependency_loops(bld, tgt_list)
1121 debug("deps: break_dependency_loops: %f" % (time.clock() - tstart))
1123 if Options.options.SHOWDEPS:
1124 show_dependencies(bld, Options.options.SHOWDEPS, set())
1126 calculate_final_deps(bld, tgt_list, loops)
1128 debug("deps: calculate_final_deps: %f" % (time.clock() - tstart))
1130 if Options.options.SHOW_DUPLICATES:
1131 show_object_duplicates(bld, tgt_list)
1133 # run the various attribute generators
1134 for f in [ build_dependencies, build_includes, add_init_functions ]:
1135 debug('deps: project rules checking %s', f)
1136 for t in tgt_list: f(t)
1137 debug("deps: %s: %f" % (f, time.clock() - tstart))
1139 debug('deps: project rules stage1 completed')
1141 if not check_duplicate_sources(bld, tgt_list):
1142 Logs.error("Duplicate sources present - aborting")
1145 debug("deps: check_duplicate_sources: %f" % (time.clock() - tstart))
1147 if not bld.check_group_ordering(tgt_list):
1148 Logs.error("Bad group ordering - aborting")
1151 debug("deps: check_group_ordering: %f" % (time.clock() - tstart))
1153 show_final_deps(bld, tgt_list)
1155 debug("deps: show_final_deps: %f" % (time.clock() - tstart))
1157 debug('deps: project rules checking completed - %u targets checked',
1160 if not bld.is_install:
1161 save_samba_deps(bld, tgt_list)
1163 debug("deps: save_samba_deps: %f" % (time.clock() - tstart))
1165 Logs.info("Project rules pass")
1168 def CHECK_PROJECT_RULES(bld):
1169 '''enable checking of project targets for sanity'''
1170 if bld.env.added_project_rules:
1172 bld.env.added_project_rules = True
1173 bld.add_pre_fun(check_project_rules)
1174 Build.BuildContext.CHECK_PROJECT_RULES = CHECK_PROJECT_RULES