# Samba automatic dependency handling and project rules import os, sys, re, time from waflib import Build, Options, Logs, Utils, Errors from waflib.Logs import debug from waflib.Configure import conf from waflib import ConfigSet from samba_bundled import BUILTIN_LIBRARY from samba_utils import LOCAL_CACHE, TO_LIST, get_tgt_list, unique_list, os_path_relpath from samba_autoconf import library_flags @conf def ADD_GLOBAL_DEPENDENCY(ctx, dep): '''add a dependency for all binaries and libraries''' if not 'GLOBAL_DEPENDENCIES' in ctx.env: ctx.env.GLOBAL_DEPENDENCIES = [] ctx.env.GLOBAL_DEPENDENCIES.append(dep) @conf def BREAK_CIRCULAR_LIBRARY_DEPENDENCIES(ctx): '''indicate that circular dependencies between libraries should be broken.''' ctx.env.ALLOW_CIRCULAR_LIB_DEPENDENCIES = True @conf def SET_SYSLIB_DEPS(conf, target, deps): '''setup some implied dependencies for a SYSLIB''' cache = LOCAL_CACHE(conf, 'SYSLIB_DEPS') cache[target] = deps def expand_subsystem_deps(bld): '''expand the reverse dependencies resulting from subsystem attributes of modules. This is walking over the complete list of declared subsystems, and expands the samba_deps_extended list for any module<->subsystem dependencies''' subsystem_list = LOCAL_CACHE(bld, 'INIT_FUNCTIONS') targets = LOCAL_CACHE(bld, 'TARGET_TYPE') for subsystem_name in subsystem_list: bld.ASSERT(subsystem_name in targets, "Subsystem target %s not declared" % subsystem_name) type = targets[subsystem_name] if type == 'DISABLED' or type == 'EMPTY': continue # for example, # subsystem_name = dcerpc_server (a subsystem) # subsystem = dcerpc_server (a subsystem object) # module_name = rpc_epmapper (a module within the dcerpc_server subsystem) # module = rpc_epmapper (a module object within the dcerpc_server subsystem) subsystem = bld.get_tgen_by_name(subsystem_name) bld.ASSERT(subsystem is not None, "Unable to find subsystem %s" % subsystem_name) for d in subsystem_list[subsystem_name]: module_name = d['TARGET'] module_type = targets[module_name] if module_type in ['DISABLED', 'EMPTY']: continue bld.ASSERT(subsystem is not None, "Subsystem target %s for %s (%s) not found" % (subsystem_name, module_name, module_type)) if module_type in ['SUBSYSTEM']: # if a module is a plain object type (not a library) then the # subsystem it is part of needs to have it as a dependency, so targets # that depend on this subsystem get the modules of that subsystem subsystem.samba_deps_extended.append(module_name) subsystem.samba_deps_extended = unique_list(subsystem.samba_deps_extended) def build_dependencies(self): '''This builds the dependency list for a target. It runs after all the targets are declared The reason this is not just done in the SAMBA_*() rules is that we have no way of knowing the full dependency list for a target until we have all of the targets declared. ''' if self.samba_type in ['LIBRARY', 'BINARY', 'PYTHON']: self.uselib = list(self.final_syslibs) self.uselib_local = list(self.final_libs) self.add_objects = list(self.final_objects) # extra link flags from pkg_config libs = self.final_syslibs.copy() (cflags, ldflags, cpppath) = library_flags(self, list(libs)) new_ldflags = getattr(self, 'samba_ldflags', [])[:] new_ldflags.extend(ldflags) self.ldflags = new_ldflags if getattr(self, 'allow_undefined_symbols', False) and self.env.undefined_ldflags: for f in self.env.undefined_ldflags: self.ldflags.remove(f) if getattr(self, 'allow_undefined_symbols', False) and self.env.undefined_ignore_ldflags: for f in self.env.undefined_ignore_ldflags: self.ldflags.append(f) debug('deps: computed dependencies for target %s: uselib=%s uselib_local=%s add_objects=%s', self.sname, self.uselib, self.uselib_local, self.add_objects) if self.samba_type in ['SUBSYSTEM']: # this is needed for the cflags of libs that come from pkg_config self.uselib = list(self.final_syslibs) self.uselib.extend(list(self.direct_syslibs)) for lib in self.final_libs: t = self.bld.get_tgen_by_name(lib) self.uselib.extend(list(t.final_syslibs)) self.uselib = unique_list(self.uselib) if getattr(self, 'uselib', None): up_list = [] for l in self.uselib: up_list.append(l.upper()) self.uselib = up_list def build_includes(self): '''This builds the right set of includes for a target. One tricky part of this is that the includes= attribute for a target needs to use paths which are relative to that targets declaration directory (which we can get at via t.path). The way this works is the includes list gets added as samba_includes in the main build task declaration. Then this function runs after all of the tasks are declared, and it processes the samba_includes attribute to produce a includes= attribute ''' if getattr(self, 'samba_includes', None) is None: return bld = self.bld inc_deps = includes_objects(bld, self, set(), {}) includes = [] # maybe add local includes if getattr(self, 'local_include', True) and getattr(self, 'local_include_first', True): includes.append('.') includes.extend(self.samba_includes_extended) if 'EXTRA_INCLUDES' in bld.env and getattr(self, 'global_include', True): includes.extend(bld.env['EXTRA_INCLUDES']) includes.append('#') inc_set = set() inc_abs = [] for d in inc_deps: t = bld.get_tgen_by_name(d) bld.ASSERT(t is not None, "Unable to find dependency %s for %s" % (d, self.sname)) inclist = getattr(t, 'samba_includes_extended', [])[:] if getattr(t, 'local_include', True): inclist.append('.') if inclist == []: continue tpath = t.samba_abspath for inc in inclist: npath = tpath + '/' + inc if not npath in inc_set: inc_abs.append(npath) inc_set.add(npath) mypath = self.path.abspath(bld.env) for inc in inc_abs: relpath = os_path_relpath(inc, mypath) includes.append(relpath) if getattr(self, 'local_include', True) and not getattr(self, 'local_include_first', True): includes.append('.') # now transform the includes list to be relative to the top directory # which is represented by '#' in waf. This allows waf to cache the # includes lists more efficiently includes_top = [] for i in includes: if i[0] == '#': # some are already top based includes_top.append(i) continue absinc = os.path.join(self.path.abspath(), i) relinc = os_path_relpath(absinc, self.bld.srcnode.abspath()) includes_top.append('#' + relinc) self.includes = unique_list(includes_top) debug('deps: includes for target %s: includes=%s', self.sname, self.includes) def add_init_functions(self): '''This builds the right set of init functions''' bld = self.bld subsystems = LOCAL_CACHE(bld, 'INIT_FUNCTIONS') # cope with the separated object lists from BINARY and LIBRARY targets sname = self.sname if sname.endswith('.objlist'): sname = sname[0:-8] modules = [] if sname in subsystems: modules.append(sname) m = getattr(self, 'samba_modules', None) if m is not None: modules.extend(TO_LIST(m)) m = getattr(self, 'samba_subsystem', None) if m is not None: modules.append(m) if 'pyembed' in self.features: return sentinel = getattr(self, 'init_function_sentinel', 'NULL') targets = LOCAL_CACHE(bld, 'TARGET_TYPE') cflags = getattr(self, 'samba_cflags', [])[:] if modules == []: sname = sname.replace('-','_') sname = sname.replace('.','_') sname = sname.replace('/','_') cflags.append('-DSTATIC_%s_MODULES=%s' % (sname, sentinel)) if sentinel == 'NULL': proto = "extern void __%s_dummy_module_proto(void)" % (sname) cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (sname, proto)) self.cflags = cflags return for m in modules: bld.ASSERT(m in subsystems, "No init_function defined for module '%s' in target '%s'" % (m, self.sname)) init_fn_list = [] for d in subsystems[m]: if targets[d['TARGET']] != 'DISABLED': init_fn_list.append(d['INIT_FUNCTION']) if init_fn_list == []: cflags.append('-DSTATIC_%s_MODULES=%s' % (m, sentinel)) if sentinel == 'NULL': proto = "extern void __%s_dummy_module_proto(void)" % (m) cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (m, proto)) else: cflags.append('-DSTATIC_%s_MODULES=%s' % (m, ','.join(init_fn_list) + ',' + sentinel)) proto='' for f in init_fn_list: proto += '_MODULE_PROTO(%s)' % f proto += "extern void __%s_dummy_module_proto(void)" % (m) cflags.append('-DSTATIC_%s_MODULES_PROTO=%s' % (m, proto)) self.cflags = cflags def check_duplicate_sources(bld, tgt_list): '''see if we are compiling the same source file more than once''' debug('deps: checking for duplicate sources') targets = LOCAL_CACHE(bld, 'TARGET_TYPE') for t in tgt_list: source_list = TO_LIST(getattr(t, 'source', '')) tpath = os.path.normpath(os_path_relpath(t.path.abspath(bld.env), t.env.BUILD_DIRECTORY + '/default')) obj_sources = set() for s in source_list: if not isinstance(s, str): print('strange path in check_duplicate_sources %r' % s) s = s.abspath() p = os.path.normpath(os.path.join(tpath, s)) if p in obj_sources: Logs.error("ERROR: source %s appears twice in target '%s'" % (p, t.sname)) sys.exit(1) obj_sources.add(p) t.samba_source_set = obj_sources subsystems = {} # build a list of targets that each source file is part of for t in tgt_list: if not targets[t.sname] in [ 'LIBRARY', 'BINARY', 'PYTHON' ]: continue for obj in t.add_objects: t2 = t.bld.get_tgen_by_name(obj) source_set = getattr(t2, 'samba_source_set', set()) for s in source_set: if not s in subsystems: subsystems[s] = {} if not t.sname in subsystems[s]: subsystems[s][t.sname] = [] subsystems[s][t.sname].append(t2.sname) for s in subsystems: if len(subsystems[s]) > 1 and Options.options.SHOW_DUPLICATES: Logs.warn("WARNING: source %s is in more than one target: %s" % (s, subsystems[s].keys())) for tname in subsystems[s]: if len(subsystems[s][tname]) > 1: raise Errors.WafError("ERROR: source %s is in more than one subsystem of target '%s': %s" % (s, tname, subsystems[s][tname])) return True def check_group_ordering(bld, tgt_list): '''see if we have any dependencies that violate the group ordering It is an error for a target to depend on a target from a later build group ''' def group_name(g): tm = bld.task_manager return [x for x in tm.groups_names if id(tm.groups_names[x]) == id(g)][0] for g in bld.task_manager.groups: gname = group_name(g) for t in g.tasks_gen: t.samba_group = gname grp_map = {} idx = 0 for g in bld.task_manager.groups: name = group_name(g) grp_map[name] = idx idx += 1 targets = LOCAL_CACHE(bld, 'TARGET_TYPE') ret = True for t in tgt_list: tdeps = getattr(t, 'add_objects', []) + getattr(t, 'uselib_local', []) for d in tdeps: t2 = bld.get_tgen_by_name(d) if t2 is None: continue map1 = grp_map[t.samba_group] map2 = grp_map[t2.samba_group] if map2 > map1: Logs.error("Target %r in build group %r depends on target %r from later build group %r" % ( t.sname, t.samba_group, t2.sname, t2.samba_group)) ret = False return ret Build.BuildContext.check_group_ordering = check_group_ordering def show_final_deps(bld, tgt_list): '''show the final dependencies for all targets''' targets = LOCAL_CACHE(bld, 'TARGET_TYPE') for t in tgt_list: if not targets[t.sname] in ['LIBRARY', 'BINARY', 'PYTHON', 'SUBSYSTEM']: continue debug('deps: final dependencies for target %s: uselib=%s uselib_local=%s add_objects=%s', t.sname, t.uselib, getattr(t, 'uselib_local', []), getattr(t, 'add_objects', [])) def add_samba_attributes(bld, tgt_list): '''ensure a target has a the required samba attributes''' targets = LOCAL_CACHE(bld, 'TARGET_TYPE') for t in tgt_list: if t.name != '': t.sname = t.name else: t.sname = t.target t.samba_type = targets[t.sname] t.samba_abspath = t.path.abspath(bld.env) t.samba_deps_extended = t.samba_deps[:] t.samba_includes_extended = TO_LIST(t.samba_includes)[:] t.cflags = getattr(t, 'samba_cflags', '') def replace_grouping_libraries(bld, tgt_list): '''replace dependencies based on grouping libraries If a library is marked as a grouping library, then any target that depends on a subsystem that is part of that grouping library gets that dependency replaced with a dependency on the grouping library ''' targets = LOCAL_CACHE(bld, 'TARGET_TYPE') grouping = {} # find our list of grouping libraries, mapped from the subsystems they depend on for t in tgt_list: if not getattr(t, 'grouping_library', False): continue for dep in t.samba_deps_extended: bld.ASSERT(dep in targets, "grouping library target %s not declared in %s" % (dep, t.sname)) if targets[dep] == 'SUBSYSTEM': grouping[dep] = t.sname # now replace any dependencies on elements of grouping libraries for t in tgt_list: for i in range(len(t.samba_deps_extended)): dep = t.samba_deps_extended[i] if dep in grouping: if t.sname != grouping[dep]: debug("deps: target %s: replacing dependency %s with grouping library %s" % (t.sname, dep, grouping[dep])) t.samba_deps_extended[i] = grouping[dep] def build_direct_deps(bld, tgt_list): '''build the direct_objects and direct_libs sets for each target''' targets = LOCAL_CACHE(bld, 'TARGET_TYPE') syslib_deps = LOCAL_CACHE(bld, 'SYSLIB_DEPS') global_deps = bld.env.GLOBAL_DEPENDENCIES global_deps_exclude = set() for dep in global_deps: t = bld.get_tgen_by_name(dep) for d in t.samba_deps: # prevent loops from the global dependencies list global_deps_exclude.add(d) global_deps_exclude.add(d + '.objlist') for t in tgt_list: t.direct_objects = set() t.direct_libs = set() t.direct_syslibs = set() deps = t.samba_deps_extended[:] if getattr(t, 'samba_use_global_deps', False) and not t.sname in global_deps_exclude: deps.extend(global_deps) for d in deps: if d == t.sname: continue if not d in targets: Logs.error("Unknown dependency '%s' in '%s'" % (d, t.sname)) sys.exit(1) if targets[d] in [ 'EMPTY', 'DISABLED' ]: continue if targets[d] == 'PYTHON' and targets[t.sname] != 'PYTHON' and t.sname.find('.objlist') == -1: # this check should be more restrictive, but for now we have pidl-generated python # code that directly depends on other python modules Logs.error('ERROR: Target %s has dependency on python module %s' % (t.sname, d)) sys.exit(1) if targets[d] == 'SYSLIB': t.direct_syslibs.add(d) if d in syslib_deps: for implied in TO_LIST(syslib_deps[d]): if BUILTIN_LIBRARY(bld, implied): t.direct_objects.add(implied) elif targets[implied] == 'SYSLIB': t.direct_syslibs.add(implied) elif targets[implied] in ['LIBRARY', 'MODULE']: t.direct_libs.add(implied) else: Logs.error('Implied dependency %s in %s is of type %s' % ( implied, t.sname, targets[implied])) sys.exit(1) continue t2 = bld.get_tgen_by_name(d) if t2 is None: Logs.error("no task %s of type %s in %s" % (d, targets[d], t.sname)) sys.exit(1) if t2.samba_type in [ 'LIBRARY', 'MODULE' ]: t.direct_libs.add(d) elif t2.samba_type in [ 'SUBSYSTEM', 'ASN1', 'PYTHON' ]: t.direct_objects.add(d) debug('deps: built direct dependencies') def dependency_loop(loops, t, target): '''add a dependency loop to the loops dictionary''' if t.sname == target: return if not target in loops: loops[target] = set() if not t.sname in loops[target]: loops[target].add(t.sname) def indirect_libs(bld, t, chain, loops): '''recursively calculate the indirect library dependencies for a target An indirect library is a library that results from a dependency on a subsystem ''' ret = getattr(t, 'indirect_libs', None) if ret is not None: return ret ret = set() for obj in t.direct_objects: if obj in chain: dependency_loop(loops, t, obj) continue chain.add(obj) t2 = bld.get_tgen_by_name(obj) r2 = indirect_libs(bld, t2, chain, loops) chain.remove(obj) ret = ret.union(t2.direct_libs) ret = ret.union(r2) for obj in indirect_objects(bld, t, set(), loops): if obj in chain: dependency_loop(loops, t, obj) continue chain.add(obj) t2 = bld.get_tgen_by_name(obj) r2 = indirect_libs(bld, t2, chain, loops) chain.remove(obj) ret = ret.union(t2.direct_libs) ret = ret.union(r2) t.indirect_libs = ret return ret def indirect_objects(bld, t, chain, loops): '''recursively calculate the indirect object dependencies for a target indirect objects are the set of objects from expanding the subsystem dependencies ''' ret = getattr(t, 'indirect_objects', None) if ret is not None: return ret ret = set() for lib in t.direct_objects: if lib in chain: dependency_loop(loops, t, lib) continue chain.add(lib) t2 = bld.get_tgen_by_name(lib) r2 = indirect_objects(bld, t2, chain, loops) chain.remove(lib) ret = ret.union(t2.direct_objects) ret = ret.union(r2) t.indirect_objects = ret return ret def extended_objects(bld, t, chain): '''recursively calculate the extended object dependencies for a target extended objects are the union of: - direct objects - indirect objects - direct and indirect objects of all direct and indirect libraries ''' ret = getattr(t, 'extended_objects', None) if ret is not None: return ret ret = set() ret = ret.union(t.final_objects) for lib in t.final_libs: if lib in chain: continue t2 = bld.get_tgen_by_name(lib) chain.add(lib) r2 = extended_objects(bld, t2, chain) chain.remove(lib) ret = ret.union(t2.final_objects) ret = ret.union(r2) t.extended_objects = ret return ret def includes_objects(bld, t, chain, inc_loops): '''recursively calculate the includes object dependencies for a target includes dependencies come from either library or object dependencies ''' ret = getattr(t, 'includes_objects', None) if ret is not None: return ret ret = t.direct_objects.copy() ret = ret.union(t.direct_libs) for obj in t.direct_objects: if obj in chain: dependency_loop(inc_loops, t, obj) continue chain.add(obj) t2 = bld.get_tgen_by_name(obj) r2 = includes_objects(bld, t2, chain, inc_loops) chain.remove(obj) ret = ret.union(t2.direct_objects) ret = ret.union(r2) for lib in t.direct_libs: if lib in chain: dependency_loop(inc_loops, t, lib) continue chain.add(lib) t2 = bld.get_tgen_by_name(lib) if t2 is None: targets = LOCAL_CACHE(bld, 'TARGET_TYPE') Logs.error('Target %s of type %s not found in direct_libs for %s' % ( lib, targets[lib], t.sname)) sys.exit(1) r2 = includes_objects(bld, t2, chain, inc_loops) chain.remove(lib) ret = ret.union(t2.direct_objects) ret = ret.union(r2) t.includes_objects = ret return ret def break_dependency_loops(bld, tgt_list): '''find and break dependency loops''' loops = {} inc_loops = {} # build up the list of loops for t in tgt_list: indirect_objects(bld, t, set(), loops) indirect_libs(bld, t, set(), loops) includes_objects(bld, t, set(), inc_loops) # break the loops for t in tgt_list: if t.sname in loops: for attr in ['direct_objects', 'indirect_objects', 'direct_libs', 'indirect_libs']: objs = getattr(t, attr, set()) setattr(t, attr, objs.difference(loops[t.sname])) for loop in loops: debug('deps: Found dependency loops for target %s : %s', loop, loops[loop]) for loop in inc_loops: debug('deps: Found include loops for target %s : %s', loop, inc_loops[loop]) # expand the loops mapping by one level for loop in loops.copy(): for tgt in loops[loop]: if tgt in loops: loops[loop] = loops[loop].union(loops[tgt]) for loop in inc_loops.copy(): for tgt in inc_loops[loop]: if tgt in inc_loops: inc_loops[loop] = inc_loops[loop].union(inc_loops[tgt]) # expand indirect subsystem and library loops for loop in loops.copy(): t = bld.get_tgen_by_name(loop) if t.samba_type in ['SUBSYSTEM']: loops[loop] = loops[loop].union(t.indirect_objects) loops[loop] = loops[loop].union(t.direct_objects) if t.samba_type in ['LIBRARY','PYTHON']: loops[loop] = loops[loop].union(t.indirect_libs) loops[loop] = loops[loop].union(t.direct_libs) if loop in loops[loop]: loops[loop].remove(loop) # expand indirect includes loops for loop in inc_loops.copy(): t = bld.get_tgen_by_name(loop) inc_loops[loop] = inc_loops[loop].union(t.includes_objects) if loop in inc_loops[loop]: inc_loops[loop].remove(loop) # add in the replacement dependencies for t in tgt_list: for loop in loops: for attr in ['indirect_objects', 'indirect_libs']: objs = getattr(t, attr, set()) if loop in objs: diff = loops[loop].difference(objs) if t.sname in diff: diff.remove(t.sname) if diff: debug('deps: Expanded target %s of type %s from loop %s by %s', t.sname, t.samba_type, loop, diff) objs = objs.union(diff) setattr(t, attr, objs) for loop in inc_loops: objs = getattr(t, 'includes_objects', set()) if loop in objs: diff = inc_loops[loop].difference(objs) if t.sname in diff: diff.remove(t.sname) if diff: debug('deps: Expanded target %s includes of type %s from loop %s by %s', t.sname, t.samba_type, loop, diff) objs = objs.union(diff) setattr(t, 'includes_objects', objs) def reduce_objects(bld, tgt_list): '''reduce objects by looking for indirect object dependencies''' rely_on = {} for t in tgt_list: t.extended_objects = None changed = False for type in ['BINARY', 'PYTHON', 'LIBRARY']: for t in tgt_list: if t.samba_type != type: continue # if we will indirectly link to a target then we don't need it new = t.final_objects.copy() for l in t.final_libs: t2 = bld.get_tgen_by_name(l) t2_obj = extended_objects(bld, t2, set()) dup = new.intersection(t2_obj) if t.sname in rely_on: dup = dup.difference(rely_on[t.sname]) if dup: # Do not remove duplicates of BUILTINS d = next(iter(dup)) if BUILTIN_LIBRARY(bld, d): continue debug('deps: removing dups from %s of type %s: %s also in %s %s', t.sname, t.samba_type, dup, t2.samba_type, l) new = new.difference(dup) changed = True if not l in rely_on: rely_on[l] = set() rely_on[l] = rely_on[l].union(dup) t.final_objects = new if not changed: return False # add back in any objects that were relied upon by the reduction rules for r in rely_on: t = bld.get_tgen_by_name(r) t.final_objects = t.final_objects.union(rely_on[r]) return True def show_library_loop(bld, lib1, lib2, path, seen): '''show the detailed path of a library loop between lib1 and lib2''' t = bld.get_tgen_by_name(lib1) if not lib2 in getattr(t, 'final_libs', set()): return for d in t.samba_deps_extended: if d in seen: continue seen.add(d) path2 = path + '=>' + d if d == lib2: Logs.warn('library loop path: ' + path2) return show_library_loop(bld, d, lib2, path2, seen) seen.remove(d) def calculate_final_deps(bld, tgt_list, loops): '''calculate the final library and object dependencies''' for t in tgt_list: # start with the maximum possible list t.final_libs = t.direct_libs.union(indirect_libs(bld, t, set(), loops)) t.final_objects = t.direct_objects.union(indirect_objects(bld, t, set(), loops)) for t in tgt_list: # don't depend on ourselves if t.sname in t.final_libs: t.final_libs.remove(t.sname) if t.sname in t.final_objects: t.final_objects.remove(t.sname) # handle any non-shared binaries for t in tgt_list: if t.samba_type == 'BINARY' and bld.NONSHARED_BINARY(t.sname): subsystem_list = LOCAL_CACHE(bld, 'INIT_FUNCTIONS') targets = LOCAL_CACHE(bld, 'TARGET_TYPE') # replace lib deps with objlist deps for l in t.final_libs: objname = l + '.objlist' t2 = bld.get_tgen_by_name(objname) if t2 is None: Logs.error('ERROR: subsystem %s not found' % objname) sys.exit(1) t.final_objects.add(objname) t.final_objects = t.final_objects.union(extended_objects(bld, t2, set())) if l in subsystem_list: # its a subsystem - we also need the contents of any modules for d in subsystem_list[l]: module_name = d['TARGET'] if targets[module_name] == 'LIBRARY': objname = module_name + '.objlist' elif targets[module_name] == 'SUBSYSTEM': objname = module_name else: continue t2 = bld.get_tgen_by_name(objname) if t2 is None: Logs.error('ERROR: subsystem %s not found' % objname) sys.exit(1) t.final_objects.add(objname) t.final_objects = t.final_objects.union(extended_objects(bld, t2, set())) t.final_libs = set() # find any library loops for t in tgt_list: if t.samba_type in ['LIBRARY', 'PYTHON']: for l in t.final_libs.copy(): t2 = bld.get_tgen_by_name(l) if t.sname in t2.final_libs: if getattr(bld.env, "ALLOW_CIRCULAR_LIB_DEPENDENCIES", False): # we could break this in either direction. If one of the libraries # has a version number, and will this be distributed publicly, then # we should make it the lower level library in the DAG Logs.warn('deps: removing library loop %s from %s' % (t.sname, t2.sname)) dependency_loop(loops, t, t2.sname) t2.final_libs.remove(t.sname) else: Logs.error('ERROR: circular library dependency between %s and %s' % (t.sname, t2.sname)) show_library_loop(bld, t.sname, t2.sname, t.sname, set()) show_library_loop(bld, t2.sname, t.sname, t2.sname, set()) sys.exit(1) for loop in loops: debug('deps: Found dependency loops for target %s : %s', loop, loops[loop]) # we now need to make corrections for any library loops we broke up # any target that depended on the target of the loop and doesn't # depend on the source of the loop needs to get the loop source added for type in ['BINARY','PYTHON','LIBRARY','BINARY']: for t in tgt_list: if t.samba_type != type: continue for loop in loops: if loop in t.final_libs: diff = loops[loop].difference(t.final_libs) if t.sname in diff: diff.remove(t.sname) if t.sname in diff: diff.remove(t.sname) # make sure we don't recreate the loop again! for d in diff.copy(): t2 = bld.get_tgen_by_name(d) if t2.samba_type == 'LIBRARY': if t.sname in t2.final_libs: debug('deps: removing expansion %s from %s', d, t.sname) diff.remove(d) if diff: debug('deps: Expanded target %s by loop %s libraries (loop %s) %s', t.sname, loop, loops[loop], diff) t.final_libs = t.final_libs.union(diff) # remove objects that are also available in linked libs count = 0 while reduce_objects(bld, tgt_list): count += 1 if count > 100: Logs.warn("WARNING: Unable to remove all inter-target object duplicates") break debug('deps: Object reduction took %u iterations', count) # add in any syslib dependencies for t in tgt_list: if not t.samba_type in ['BINARY','PYTHON','LIBRARY','SUBSYSTEM']: continue syslibs = set() for d in t.final_objects: t2 = bld.get_tgen_by_name(d) syslibs = syslibs.union(t2.direct_syslibs) # this adds the indirect syslibs as well, which may not be needed # depending on the linker flags for d in t.final_libs: t2 = bld.get_tgen_by_name(d) syslibs = syslibs.union(t2.direct_syslibs) t.final_syslibs = syslibs # find any unresolved library loops lib_loop_error = False for t in tgt_list: if t.samba_type in ['LIBRARY', 'PYTHON']: for l in t.final_libs.copy(): t2 = bld.get_tgen_by_name(l) if t.sname in t2.final_libs: Logs.error('ERROR: Unresolved library loop %s from %s' % (t.sname, t2.sname)) lib_loop_error = True if lib_loop_error: sys.exit(1) debug('deps: removed duplicate dependencies') def show_dependencies(bld, target, seen): '''recursively show the dependencies of target''' if target in seen: return t = bld.get_tgen_by_name(target) if t is None: Logs.error("ERROR: Unable to find target '%s'" % target) sys.exit(1) Logs.info('%s(OBJECTS): %s' % (target, t.direct_objects)) Logs.info('%s(LIBS): %s' % (target, t.direct_libs)) Logs.info('%s(SYSLIBS): %s' % (target, t.direct_syslibs)) seen.add(target) for t2 in t.direct_objects: show_dependencies(bld, t2, seen) def show_object_duplicates(bld, tgt_list): '''show a list of object files that are included in more than one library or binary''' targets = LOCAL_CACHE(bld, 'TARGET_TYPE') used_by = {} Logs.info("showing duplicate objects") for t in tgt_list: if not targets[t.sname] in [ 'LIBRARY', 'PYTHON' ]: continue for n in getattr(t, 'final_objects', set()): t2 = bld.get_tgen_by_name(n) if not n in used_by: used_by[n] = set() used_by[n].add(t.sname) for n in used_by: if len(used_by[n]) > 1: Logs.info("target '%s' is used by %s" % (n, used_by[n])) Logs.info("showing indirect dependency counts (sorted by count)") def indirect_count(t1, t2): return len(t2.indirect_objects) - len(t1.indirect_objects) sorted_list = sorted(tgt_list, cmp=indirect_count) for t in sorted_list: if len(t.indirect_objects) > 1: Logs.info("%s depends on %u indirect objects" % (t.sname, len(t.indirect_objects))) ###################################################################### # this provides a way to save our dependency calculations between runs savedeps_version = 3 savedeps_inputs = ['samba_deps', 'samba_includes', 'local_include', 'local_include_first', 'samba_cflags', 'source', 'grouping_library', 'samba_ldflags', 'allow_undefined_symbols', 'use_global_deps', 'global_include' ] savedeps_outputs = ['uselib', 'uselib_local', 'add_objects', 'includes', 'cflags', 'ldflags', 'samba_deps_extended', 'final_libs'] savedeps_outenv = ['INC_PATHS'] savedeps_envvars = ['NONSHARED_BINARIES', 'GLOBAL_DEPENDENCIES', 'EXTRA_CFLAGS', 'EXTRA_LDFLAGS', 'EXTRA_INCLUDES' ] savedeps_caches = ['GLOBAL_DEPENDENCIES', 'TARGET_TYPE', 'INIT_FUNCTIONS', 'SYSLIB_DEPS'] savedeps_files = ['buildtools/wafsamba/samba_deps.py'] def save_samba_deps(bld, tgt_list): '''save the dependency calculations between builds, to make further builds faster''' denv = ConfigSet.ConfigSet() denv.version = savedeps_version denv.savedeps_inputs = savedeps_inputs denv.savedeps_outputs = savedeps_outputs denv.input = {} denv.output = {} denv.outenv = {} denv.caches = {} denv.envvar = {} denv.files = {} for f in savedeps_files: denv.files[f] = os.stat(os.path.join(bld.srcnode.abspath(), f)).st_mtime for c in savedeps_caches: denv.caches[c] = LOCAL_CACHE(bld, c) for e in savedeps_envvars: denv.envvar[e] = bld.env[e] for t in tgt_list: # save all the input attributes for each target tdeps = {} for attr in savedeps_inputs: v = getattr(t, attr, None) if v is not None: tdeps[attr] = v if tdeps != {}: denv.input[t.sname] = tdeps # save all the output attributes for each target tdeps = {} for attr in savedeps_outputs: v = getattr(t, attr, None) if v is not None: tdeps[attr] = v if tdeps != {}: denv.output[t.sname] = tdeps tdeps = {} for attr in savedeps_outenv: if attr in t.env: tdeps[attr] = t.env[attr] if tdeps != {}: denv.outenv[t.sname] = tdeps depsfile = os.path.join(bld.cache_dir, "sambadeps") denv.store_fast(depsfile) def load_samba_deps(bld, tgt_list): '''load a previous set of build dependencies if possible''' depsfile = os.path.join(bld.cache_dir, "sambadeps") denv = ConfigSet.ConfigSet() try: debug('deps: checking saved dependencies') denv.load_fast(depsfile) if (denv.version != savedeps_version or denv.savedeps_inputs != savedeps_inputs or denv.savedeps_outputs != savedeps_outputs): return False except Exception: return False # check if critical files have changed for f in savedeps_files: if f not in denv.files: return False if denv.files[f] != os.stat(os.path.join(bld.srcnode.abspath(), f)).st_mtime: return False # check if caches are the same for c in savedeps_caches: if c not in denv.caches or denv.caches[c] != LOCAL_CACHE(bld, c): return False # check if caches are the same for e in savedeps_envvars: if e not in denv.envvar or denv.envvar[e] != bld.env[e]: return False # check inputs are the same for t in tgt_list: tdeps = {} for attr in savedeps_inputs: v = getattr(t, attr, None) if v is not None: tdeps[attr] = v if t.sname in denv.input: olddeps = denv.input[t.sname] else: olddeps = {} if tdeps != olddeps: #print '%s: \ntdeps=%s \nodeps=%s' % (t.sname, tdeps, olddeps) return False # put outputs in place for t in tgt_list: if not t.sname in denv.output: continue tdeps = denv.output[t.sname] for a in tdeps: setattr(t, a, tdeps[a]) # put output env vars in place for t in tgt_list: if not t.sname in denv.outenv: continue tdeps = denv.outenv[t.sname] for a in tdeps: t.env[a] = tdeps[a] debug('deps: loaded saved dependencies') return True def check_project_rules(bld): '''check the project rules - ensuring the targets are sane''' loops = {} inc_loops = {} tgt_list = get_tgt_list(bld) add_samba_attributes(bld, tgt_list) force_project_rules = (Options.options.SHOWDEPS or Options.options.SHOW_DUPLICATES) if not force_project_rules and load_samba_deps(bld, tgt_list): return global tstart tstart = time.clock() bld.new_rules = True Logs.info("Checking project rules ...") debug('deps: project rules checking started') expand_subsystem_deps(bld) debug("deps: expand_subsystem_deps: %f" % (time.clock() - tstart)) replace_grouping_libraries(bld, tgt_list) debug("deps: replace_grouping_libraries: %f" % (time.clock() - tstart)) build_direct_deps(bld, tgt_list) debug("deps: build_direct_deps: %f" % (time.clock() - tstart)) break_dependency_loops(bld, tgt_list) debug("deps: break_dependency_loops: %f" % (time.clock() - tstart)) if Options.options.SHOWDEPS: show_dependencies(bld, Options.options.SHOWDEPS, set()) calculate_final_deps(bld, tgt_list, loops) debug("deps: calculate_final_deps: %f" % (time.clock() - tstart)) if Options.options.SHOW_DUPLICATES: show_object_duplicates(bld, tgt_list) # run the various attribute generators for f in [ build_dependencies, build_includes, add_init_functions ]: debug('deps: project rules checking %s', f) for t in tgt_list: f(t) debug("deps: %s: %f" % (f, time.clock() - tstart)) debug('deps: project rules stage1 completed') if not check_duplicate_sources(bld, tgt_list): Logs.error("Duplicate sources present - aborting") sys.exit(1) debug("deps: check_duplicate_sources: %f" % (time.clock() - tstart)) if not bld.check_group_ordering(tgt_list): Logs.error("Bad group ordering - aborting") sys.exit(1) debug("deps: check_group_ordering: %f" % (time.clock() - tstart)) show_final_deps(bld, tgt_list) debug("deps: show_final_deps: %f" % (time.clock() - tstart)) debug('deps: project rules checking completed - %u targets checked', len(tgt_list)) if not bld.is_install: save_samba_deps(bld, tgt_list) debug("deps: save_samba_deps: %f" % (time.clock() - tstart)) Logs.info("Project rules pass") def CHECK_PROJECT_RULES(bld): '''enable checking of project targets for sanity''' if bld.env.added_project_rules: return bld.env.added_project_rules = True bld.add_pre_fun(check_project_rules) Build.BuildContext.CHECK_PROJECT_RULES = CHECK_PROJECT_RULES