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| 1 #!/usr/bin/env python | 1 #!/usr/bin/env python |
| 2 # | 2 # |
| 3 # Copyright 2014 The Chromium Authors. All rights reserved. | 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 | 4 # Use of this source code is governed by a BSD-style license that can be |
| 5 # found in the LICENSE file. | 5 # found in the LICENSE file. |
| 6 | 6 |
| 7 """Pack ARM relative relocations in a library (or copy unchanged). | 7 """Pack ARM relative relocations in a library (or copy unchanged). |
| 8 | 8 |
| 9 If --enable-packing and --configuration-name=='Release', invoke the | 9 If --enable-packing and --configuration-name=='Release', invoke the |
| 10 relocation_packer tool to pack the .rel.dyn section in the given library | 10 relocation_packer tool to pack the .rel.dyn section in the given library |
| 11 files. This step is inserted after the libraries are stripped. Packing | 11 files. This step is inserted after the libraries are stripped. Packing |
| 12 adds a new .android.rel.dyn section to the file and reduces the size of | 12 adds a new .android.rel.dyn section to the file and reduces the size of |
| 13 .rel.dyn accordingly. | 13 .rel.dyn accordingly. |
| 14 | 14 |
| 15 Currently packing only understands ARM32 shared libraries. For all other | 15 Currently packing only understands ARM32 shared libraries. For all other |
| 16 architectures --enable-packing should be set to zero. In this case the | 16 architectures --enable-packing should be set to zero. In this case the |
| 17 script copies files verbatim, with no attempt to pack relative relocations. | 17 script copies files verbatim, with no attempt to pack relative relocations. |
| 18 | 18 |
| 19 Any library listed in --exclude-packing-list is also copied verbatim, | 19 Any library listed in --exclude-packing-list is also copied verbatim, |
| 20 irrespective of any --enable-packing setting. Typically this would be | 20 irrespective of any --enable-packing setting. Typically this would be |
| 21 'libchromium_android_linker.so'. | 21 'libchromium_android_linker.so'. |
| 22 """ | 22 """ |
| 23 | 23 |
| 24 import json | |
| 25 import optparse | 24 import optparse |
| 26 import os | 25 import os |
| 27 import shlex | 26 import shlex |
| 28 import shutil | 27 import shutil |
| 29 import sys | 28 import sys |
| 30 import tempfile | 29 import tempfile |
| 31 | 30 |
| 32 from util import build_utils | 31 from util import build_utils |
| 33 | 32 |
| 34 def PackArmLibraryRelocations(android_pack_relocations, | 33 def PackArmLibraryRelocations(android_pack_relocations, |
| (...skipping 17 matching lines...) Expand all Loading... |
| 52 build_utils.CheckOutput(pack_command) | 51 build_utils.CheckOutput(pack_command) |
| 53 | 52 |
| 54 | 53 |
| 55 def CopyArmLibraryUnchanged(library_path, output_path): | 54 def CopyArmLibraryUnchanged(library_path, output_path): |
| 56 if not build_utils.IsTimeStale(output_path, [library_path]): | 55 if not build_utils.IsTimeStale(output_path, [library_path]): |
| 57 return | 56 return |
| 58 | 57 |
| 59 shutil.copy(library_path, output_path) | 58 shutil.copy(library_path, output_path) |
| 60 | 59 |
| 61 | 60 |
| 62 def main(): | 61 def main(args): |
| 62 args = build_utils.ExpandFileArgs(args) |
| 63 parser = optparse.OptionParser() | 63 parser = optparse.OptionParser() |
| 64 | 64 |
| 65 parser.add_option('--configuration-name', | 65 parser.add_option('--configuration-name', |
| 66 default='Release', | 66 default='Release', |
| 67 help='Gyp configuration name (i.e. Debug, Release)') | 67 help='Gyp configuration name (i.e. Debug, Release)') |
| 68 parser.add_option('--enable-packing', | 68 parser.add_option('--enable-packing', |
| 69 choices=['0', '1'], | 69 choices=['0', '1'], |
| 70 help=('Pack relocations if 1 and configuration name is \'Release\',' | 70 help=('Pack relocations if 1 and configuration name is \'Release\',' |
| 71 ' otherwise plain file copy')) | 71 ' otherwise plain file copy')) |
| 72 parser.add_option('--exclude-packing-list', | 72 parser.add_option('--exclude-packing-list', |
| 73 default='', | 73 default='', |
| 74 help='Names of any libraries explicitly not packed') | 74 help='Names of any libraries explicitly not packed') |
| 75 parser.add_option('--android-pack-relocations', | 75 parser.add_option('--android-pack-relocations', |
| 76 help='Path to the ARM relocations packer binary') | 76 help='Path to the ARM relocations packer binary') |
| 77 parser.add_option('--android-objcopy', | 77 parser.add_option('--android-objcopy', |
| 78 help='Path to the toolchain\'s objcopy binary') | 78 help='Path to the toolchain\'s objcopy binary') |
| 79 parser.add_option('--stripped-libraries-dir', | 79 parser.add_option('--stripped-libraries-dir', |
| 80 help='Directory for stripped libraries') | 80 help='Directory for stripped libraries') |
| 81 parser.add_option('--packed-libraries-dir', | 81 parser.add_option('--packed-libraries-dir', |
| 82 help='Directory for packed libraries') | 82 help='Directory for packed libraries') |
| 83 parser.add_option('--libraries-file', | 83 parser.add_option('--libraries', |
| 84 help='Path to json file containing list of libraries') | 84 help='List of libraries') |
| 85 parser.add_option('--stamp', help='Path to touch on success') | 85 parser.add_option('--stamp', help='Path to touch on success') |
| 86 | 86 |
| 87 options, _ = parser.parse_args() | 87 options, _ = parser.parse_args(args) |
| 88 enable_packing = (options.enable_packing == '1' and | 88 enable_packing = (options.enable_packing == '1' and |
| 89 options.configuration_name == 'Release') | 89 options.configuration_name == 'Release') |
| 90 exclude_packing_set = set(shlex.split(options.exclude_packing_list)) | 90 exclude_packing_set = set(shlex.split(options.exclude_packing_list)) |
| 91 | 91 |
| 92 with open(options.libraries_file, 'r') as libfile: | 92 libraries = build_utils.ParseGypList(options.libraries) |
| 93 libraries = json.load(libfile) | |
| 94 | 93 |
| 95 build_utils.MakeDirectory(options.packed_libraries_dir) | 94 build_utils.MakeDirectory(options.packed_libraries_dir) |
| 96 | 95 |
| 97 for library in libraries: | 96 for library in libraries: |
| 98 library_path = os.path.join(options.stripped_libraries_dir, library) | 97 library_path = os.path.join(options.stripped_libraries_dir, library) |
| 99 output_path = os.path.join(options.packed_libraries_dir, library) | 98 output_path = os.path.join(options.packed_libraries_dir, library) |
| 100 | 99 |
| 101 if enable_packing and library not in exclude_packing_set: | 100 if enable_packing and library not in exclude_packing_set: |
| 102 PackArmLibraryRelocations(options.android_pack_relocations, | 101 PackArmLibraryRelocations(options.android_pack_relocations, |
| 103 options.android_objcopy, | 102 options.android_objcopy, |
| 104 library_path, | 103 library_path, |
| 105 output_path) | 104 output_path) |
| 106 else: | 105 else: |
| 107 CopyArmLibraryUnchanged(library_path, output_path) | 106 CopyArmLibraryUnchanged(library_path, output_path) |
| 108 | 107 |
| 109 if options.stamp: | 108 if options.stamp: |
| 110 build_utils.Touch(options.stamp) | 109 build_utils.Touch(options.stamp) |
| 111 | 110 |
| 112 return 0 | 111 return 0 |
| 113 | 112 |
| 114 | 113 |
| 115 if __name__ == '__main__': | 114 if __name__ == '__main__': |
| 116 sys.exit(main()) | 115 sys.exit(main(sys.argv[1:])) |
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