Make the sym_diff utilities more useful.
In particular when working with static libraries and libstdc++.
llvm-svn: 353772
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 1eb19e52774a4cea757b9214fc3c8e8e6318ef64
diff --git a/utils/sym_extract.py b/utils/sym_extract.py
index 156e883..987c207 100755
--- a/utils/sym_extract.py
+++ b/utils/sym_extract.py
@@ -27,14 +27,27 @@
parser.add_argument('--only-stdlib-symbols', dest='only_stdlib',
help="Filter all symbols not related to the stdlib",
action='store_true', default=False)
+ parser.add_argument('--defined-only', dest='defined_only',
+ help="Filter all symbols that are not defined",
+ action='store_true', default=False)
+ parser.add_argument('--undefined-only', dest='undefined_only',
+ help="Filter all symbols that are defined",
+ action='store_true', default=False)
+
args = parser.parse_args()
+ assert not (args.undefined_only and args.defined_only)
if args.output is not None:
print('Extracting symbols from %s to %s.'
% (args.library, args.output))
syms = extract.extract_symbols(args.library)
if args.only_stdlib:
syms, other_syms = util.filter_stdlib_symbols(syms)
- util.write_syms(syms, out=args.output, names_only=args.names_only)
+ filter = lambda x: x
+ if args.defined_only:
+ filter = lambda l: list([x for x in l if x['is_defined']])
+ if args.undefined_only:
+ filter = lambda l: list([x for x in l if not x['is_defined']])
+ util.write_syms(syms, out=args.output, names_only=args.names_only, filter=filter)
if __name__ == '__main__':