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authorAndrew Tridgell <tridge@samba.org>2010-10-20 18:09:45 +1100
committerAndrew Tridgell <tridge@samba.org>2010-10-21 19:03:23 +1100
commit14081efcc07e02a479ed3121a2359b9dd766a378 (patch)
tree56ae55753db696f27e18454d7e485255e4827b40 /buildtools
parent8044a20d8d84e740ca5c6d76bacaa977d691f3d0 (diff)
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waf: added --show-deps and --show-duplicates
these options make it easier to examine our depenency tree, by showing any objects linked into more than one library, and by showing the dependency tree for a chosen target
Diffstat (limited to 'buildtools')
-rw-r--r--buildtools/wafsamba/samba_deps.py67
-rw-r--r--buildtools/wafsamba/wscript8
2 files changed, 74 insertions, 1 deletions
diff --git a/buildtools/wafsamba/samba_deps.py b/buildtools/wafsamba/samba_deps.py
index 933a18b369..2492a4c233 100644
--- a/buildtools/wafsamba/samba_deps.py
+++ b/buildtools/wafsamba/samba_deps.py
@@ -792,6 +792,61 @@ def calculate_final_deps(bld, tgt_list, loops):
debug('deps: removed duplicate dependencies')
+def show_dependencies(bld, target, seen):
+ '''recursively show the dependencies of target'''
+
+ if target in seen:
+ return
+
+ t = bld.name_to_obj(target, bld.env)
+ 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' ]:
+ continue
+ for n in getattr(t, 'final_objects', set()):
+ t2 = bld.name_to_obj(n, bld.env)
+ 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
@@ -943,7 +998,10 @@ def check_project_rules(bld):
add_samba_attributes(bld, tgt_list)
- if load_samba_deps(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
bld.new_rules = True
@@ -953,9 +1011,16 @@ def check_project_rules(bld):
expand_subsystem_deps(bld)
build_direct_deps(bld, tgt_list)
+
break_dependency_loops(bld, tgt_list)
calculate_final_deps(bld, tgt_list, loops)
+ if Options.options.SHOWDEPS:
+ show_dependencies(bld, Options.options.SHOWDEPS, set())
+
+ 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)
diff --git a/buildtools/wafsamba/wscript b/buildtools/wafsamba/wscript
index c46c486c12..9dc6910fda 100644
--- a/buildtools/wafsamba/wscript
+++ b/buildtools/wafsamba/wscript
@@ -100,6 +100,14 @@ def set_options(opt):
help=("Update ABI signature files for libraries"),
action='store_true', dest='ABI_UPDATE', default=False)
+ gr.add_option('--show-deps',
+ help=("Show dependency tree for the given target"),
+ dest='SHOWDEPS', default='')
+
+ gr.add_option('--show-duplicates',
+ help=("Show objects which are included in multiple binaries or libraries"),
+ action='store_true', dest='SHOW_DUPLICATES', default=False)
+
gr = opt.add_option_group('cross compilation options')
gr.add_option('--cross-compile',