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1 #!/usr/bin/env python | |
2 # | |
3 # Copyright 2014 The Chromium Authors. All rights reserved. | |
4 # Use of this source code is governed by a BSD-style license that can be | |
5 # found in the LICENSE file. | |
6 | |
7 """Pack relocations in a library (or copy unchanged). | |
8 | |
9 If --enable-packing and --configuration-name=='Release', invoke the | |
10 relocation_packer tool to pack the .rel.dyn or .rela.dyn section in the given | |
11 library files. This step is inserted after the libraries are stripped. | |
12 | |
13 If --enable-packing is zero, the script copies files verbatim, with no | |
14 attempt to pack relocations. | |
15 | |
16 Any library listed in --exclude-packing-list is also copied verbatim, | |
17 irrespective of any --enable-packing setting. Typically this would be | |
18 'libchromium_android_linker.so'. | |
19 """ | |
20 | |
21 import optparse | |
22 import os | |
23 import shlex | |
24 import shutil | |
25 import sys | |
26 import tempfile | |
27 | |
28 from util import build_utils | |
29 | |
30 def PackLibraryRelocations(android_pack_relocations, library_path, output_path): | |
31 shutil.copy(library_path, output_path) | |
32 pack_command = [android_pack_relocations, output_path] | |
33 build_utils.CheckOutput(pack_command) | |
34 | |
35 | |
36 def CopyLibraryUnchanged(library_path, output_path): | |
37 shutil.copy(library_path, output_path) | |
38 | |
39 | |
40 def main(args): | |
41 args = build_utils.ExpandFileArgs(args) | |
42 parser = optparse.OptionParser() | |
43 build_utils.AddDepfileOption(parser) | |
44 parser.add_option('--clear-dir', action='store_true', | |
45 help='If set, the destination directory will be deleted ' | |
46 'before copying files to it. This is highly recommended to ' | |
47 'ensure that no stale files are left in the directory.') | |
48 | |
49 parser.add_option('--configuration-name', | |
50 default='Release', | |
51 help='Gyp configuration name (i.e. Debug, Release)') | |
52 parser.add_option('--enable-packing', | |
53 choices=['0', '1'], | |
54 help=('Pack relocations if 1 and configuration name is \'Release\',' | |
55 ' otherwise plain file copy')) | |
56 parser.add_option('--exclude-packing-list', | |
57 default='', | |
58 help='Names of any libraries explicitly not packed') | |
59 parser.add_option('--android-pack-relocations', | |
60 help='Path to the relocations packer binary') | |
61 parser.add_option('--stripped-libraries-dir', | |
62 help='Directory for stripped libraries') | |
63 parser.add_option('--packed-libraries-dir', | |
64 help='Directory for packed libraries') | |
65 parser.add_option('--libraries', action='append', | |
66 help='List of libraries') | |
67 parser.add_option('--stamp', help='Path to touch on success') | |
68 | |
69 options, _ = parser.parse_args(args) | |
70 enable_packing = (options.enable_packing == '1' and | |
71 options.configuration_name == 'Release') | |
72 exclude_packing_set = set(shlex.split(options.exclude_packing_list)) | |
73 | |
74 libraries = [] | |
75 for libs_arg in options.libraries: | |
76 libraries += build_utils.ParseGypList(libs_arg) | |
77 | |
78 if options.clear_dir: | |
79 build_utils.DeleteDirectory(options.packed_libraries_dir) | |
80 | |
81 build_utils.MakeDirectory(options.packed_libraries_dir) | |
82 | |
83 for library in libraries: | |
84 library_path = os.path.join(options.stripped_libraries_dir, library) | |
85 output_path = os.path.join( | |
86 options.packed_libraries_dir, os.path.basename(library)) | |
87 | |
88 if enable_packing and library not in exclude_packing_set: | |
89 PackLibraryRelocations(options.android_pack_relocations, | |
90 library_path, | |
91 output_path) | |
92 else: | |
93 CopyLibraryUnchanged(library_path, output_path) | |
94 | |
95 if options.depfile: | |
96 build_utils.WriteDepfile( | |
97 options.depfile, | |
98 libraries + build_utils.GetPythonDependencies()) | |
99 | |
100 if options.stamp: | |
101 build_utils.Touch(options.stamp) | |
102 | |
103 return 0 | |
104 | |
105 | |
106 if __name__ == '__main__': | |
107 sys.exit(main(sys.argv[1:])) | |
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