2 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
7 from __future__ import print_function
16 print('Usage: merge_static_libs OUTPUT_LIB INPUT_LIB [INPUT_LIB]*')
20 def MergeLibs(in_libs, out_lib):
21 """ Merges multiple static libraries into one.
23 in_libs: list of paths to static libraries to be merged
24 out_lib: path to the static library which will be created from in_libs
26 if os.name == 'posix':
27 tempdir = tempfile.mkdtemp()
29 for in_lib in in_libs:
30 abs_in_libs.append(os.path.abspath(in_lib))
34 ar = os.environ.get('AR', 'ar')
35 for in_lib in abs_in_libs:
36 proc = subprocess.Popen([ar, '-t', in_lib], stdout=subprocess.PIPE)
38 obj_str = proc.communicate()[0]
39 current_objects = obj_str.rstrip().split('\n')
40 proc = subprocess.Popen([ar, '-x', in_lib], stdout=subprocess.PIPE,
41 stderr=subprocess.STDOUT)
44 # The static library is non-thin, and we extracted objects
45 for obj in current_objects:
46 objects.append(os.path.abspath(obj))
47 elif 'thin archive' in proc.communicate()[0]:
48 # The static library is thin, so it contains the paths to its objects
49 for obj in current_objects:
52 raise Exception('Failed to extract objects from %s.' % in_lib)
54 if not subprocess.call([ar, '-crs', out_lib] + objects) == 0:
55 raise Exception('Failed to add object files to %s' % out_lib)
56 shutil.rmtree(tempdir)
58 subprocess.call(['lib', '/OUT:%s' % out_lib] + in_libs)
60 raise Exception('Error: Your platform is not supported')
67 in_libs = sys.argv[2:]
68 MergeLibs(in_libs, out_lib)
71 if '__main__' == __name__: