| #!/usr/bin/env python |
| # |
| # Copyright 2013 The Chromium Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import argparse |
| import logging |
| import os |
| import re |
| import shutil |
| import sys |
| import tempfile |
| import zipfile |
| |
| from util import build_utils |
| from util import zipalign |
| |
| sys.path.insert(1, os.path.join(os.path.dirname(__file__), os.path.pardir)) |
| |
| import convert_dex_profile |
| |
| |
| def _ParseArgs(args): |
| args = build_utils.ExpandFileArgs(args) |
| parser = argparse.ArgumentParser() |
| |
| build_utils.AddDepfileOption(parser) |
| parser.add_argument('--output', required=True, help='Dex output path.') |
| parser.add_argument('--input-list', help='GN-list of additional input paths.') |
| parser.add_argument( |
| '--main-dex-list-path', |
| help='File containing a list of the classes to include in the main dex.') |
| parser.add_argument( |
| '--multi-dex', |
| action='store_true', |
| help='Allow multiple dex files within output.') |
| parser.add_argument('--r8-jar-path', required=True, help='Path to R8 jar.') |
| parser.add_argument( |
| '--release', |
| action='store_true', |
| help='Run D8 in release mode. Release mode maximises main dex and ' |
| 'deletes non-essential line number information (vs debug which minimizes ' |
| 'main dex and keeps all line number information, and then some.') |
| parser.add_argument( |
| '--min-api', help='Minimum Android API level compatibility.') |
| parser.add_argument('inputs', nargs='*', help='Input .jar files.') |
| |
| group = parser.add_argument_group('Dexlayout') |
| group.add_argument( |
| '--dexlayout-profile', |
| help=('Text profile for dexlayout. If present, a dexlayout ' |
| 'pass will happen')) |
| group.add_argument( |
| '--profman-path', |
| help=('Path to ART profman binary. There should be a lib/ directory at ' |
| 'the same path with shared libraries (shared with dexlayout).')) |
| group.add_argument( |
| '--dexlayout-path', |
| help=('Path to ART dexlayout binary. There should be a lib/ directory at ' |
| 'the same path with shared libraries (shared with dexlayout).')) |
| group.add_argument('--dexdump-path', help='Path to dexdump binary.') |
| group.add_argument( |
| '--proguard-mapping-path', |
| help=('Path to proguard map from obfuscated symbols in the jar to ' |
| 'unobfuscated symbols present in the code. If not present, the jar ' |
| 'is assumed not to be obfuscated.')) |
| |
| options = parser.parse_args(args) |
| |
| if options.dexlayout_profile: |
| build_utils.CheckOptions( |
| options, |
| parser, |
| required=('profman_path', 'dexlayout_path', 'dexdump_path')) |
| elif options.proguard_mapping_path is not None: |
| parser.error('Unexpected proguard mapping without dexlayout') |
| |
| if options.main_dex_list_path and not options.multi_dex: |
| parser.error('--main-dex-list-path is unused if multidex is not enabled') |
| |
| if options.input_list: |
| options.inputs += build_utils.ParseGnList(options.input_list) |
| |
| return options |
| |
| |
| def _RunD8(dex_cmd, input_paths, output_path): |
| dex_cmd = dex_cmd + ['--output', output_path] + input_paths |
| build_utils.CheckOutput(dex_cmd, print_stderr=False) |
| |
| |
| def _EnvWithArtLibPath(binary_path): |
| """Return an environment dictionary for ART host shared libraries. |
| |
| Args: |
| binary_path: the path to an ART host binary. |
| |
| Returns: |
| An environment dictionary where LD_LIBRARY_PATH has been augmented with the |
| shared library path for the binary. This assumes that there is a lib/ |
| directory in the same location as the binary. |
| """ |
| lib_path = os.path.join(os.path.dirname(binary_path), 'lib') |
| env = os.environ.copy() |
| libraries = [l for l in env.get('LD_LIBRARY_PATH', '').split(':') if l] |
| libraries.append(lib_path) |
| env['LD_LIBRARY_PATH'] = ':'.join(libraries) |
| return env |
| |
| |
| def _CreateBinaryProfile(text_profile, input_dex, profman_path, temp_dir): |
| """Create a binary profile for dexlayout. |
| |
| Args: |
| text_profile: The ART text profile that will be converted to a binary |
| profile. |
| input_dex: The input dex file to layout. |
| profman_path: Path to the profman binary. |
| temp_dir: Directory to work in. |
| |
| Returns: |
| The name of the binary profile, which will live in temp_dir. |
| """ |
| binary_profile = os.path.join( |
| temp_dir, 'binary_profile-for-' + os.path.basename(text_profile)) |
| open(binary_profile, 'w').close() # Touch binary_profile. |
| profman_cmd = [profman_path, |
| '--apk=' + input_dex, |
| '--dex-location=' + input_dex, |
| '--create-profile-from=' + text_profile, |
| '--reference-profile-file=' + binary_profile] |
| build_utils.CheckOutput( |
| profman_cmd, |
| env=_EnvWithArtLibPath(profman_path), |
| stderr_filter=lambda output: |
| build_utils.FilterLines(output, '|'.join( |
| [r'Could not find (method_id|proto_id|name):', |
| r'Could not create type list']))) |
| return binary_profile |
| |
| |
| def _LayoutDex(binary_profile, input_dex, dexlayout_path, temp_dir): |
| """Layout a dexfile using a profile. |
| |
| Args: |
| binary_profile: An ART binary profile, eg output from _CreateBinaryProfile. |
| input_dex: The dex file used to create the binary profile. |
| dexlayout_path: Path to the dexlayout binary. |
| temp_dir: Directory to work in. |
| |
| Returns: |
| List of output files produced by dexlayout. This will be one if the input |
| was a single dexfile, or multiple files if the input was a multidex |
| zip. These output files are located in temp_dir. |
| """ |
| dexlayout_output_dir = os.path.join(temp_dir, 'dexlayout_output') |
| os.mkdir(dexlayout_output_dir) |
| dexlayout_cmd = [ dexlayout_path, |
| '-u', # Update checksum |
| '-p', binary_profile, |
| '-w', dexlayout_output_dir, |
| input_dex ] |
| build_utils.CheckOutput( |
| dexlayout_cmd, |
| env=_EnvWithArtLibPath(dexlayout_path), |
| stderr_filter=lambda output: |
| build_utils.FilterLines(output, |
| r'Can.t mmap dex file.*please zipalign')) |
| output_files = os.listdir(dexlayout_output_dir) |
| if not output_files: |
| raise Exception('dexlayout unexpectedly produced no output') |
| return sorted([os.path.join(dexlayout_output_dir, f) for f in output_files]) |
| |
| |
| def _ZipMultidex(file_dir, dex_files): |
| """Zip dex files into a multidex. |
| |
| Args: |
| file_dir: The directory into which to write the output. |
| dex_files: The dexfiles forming the multizip. Their names must end with |
| classes.dex, classes2.dex, ... |
| |
| Returns: |
| The name of the multidex file, which will live in file_dir. |
| """ |
| ordered_files = [] # List of (archive name, file name) |
| for f in dex_files: |
| if f.endswith('classes.dex.zip'): |
| ordered_files.append(('classes.dex', f)) |
| break |
| if not ordered_files: |
| raise Exception('Could not find classes.dex multidex file in %s', |
| dex_files) |
| for dex_idx in xrange(2, len(dex_files) + 1): |
| archive_name = 'classes%d.dex' % dex_idx |
| for f in dex_files: |
| if f.endswith(archive_name): |
| ordered_files.append((archive_name, f)) |
| break |
| else: |
| raise Exception('Could not find classes%d.dex multidex file in %s', |
| dex_files) |
| if len(set(f[1] for f in ordered_files)) != len(ordered_files): |
| raise Exception('Unexpected clashing filenames for multidex in %s', |
| dex_files) |
| |
| zip_name = os.path.join(file_dir, 'multidex_classes.zip') |
| build_utils.DoZip(((archive_name, os.path.join(file_dir, file_name)) |
| for archive_name, file_name in ordered_files), |
| zip_name) |
| return zip_name |
| |
| |
| def _ZipAligned(dex_files, output_path): |
| """Creates a .dex.jar with 4-byte aligned files. |
| |
| Args: |
| dex_files: List of dex files. |
| output_path: The output file in which to write the zip. |
| """ |
| with zipfile.ZipFile(output_path, 'w') as z: |
| for i, dex_file in enumerate(dex_files): |
| name = 'classes{}.dex'.format(i + 1 if i > 0 else '') |
| zipalign.AddToZipHermetic(z, name, src_path=dex_file, alignment=4) |
| |
| |
| def _PerformDexlayout(tmp_dir, tmp_dex_output, options): |
| if options.proguard_mapping_path is not None: |
| matching_profile = os.path.join(tmp_dir, 'obfuscated_profile') |
| convert_dex_profile.ObfuscateProfile( |
| options.dexlayout_profile, tmp_dex_output, |
| options.proguard_mapping_path, options.dexdump_path, matching_profile) |
| else: |
| logging.warning('No obfuscation for %s', options.dexlayout_profile) |
| matching_profile = options.dexlayout_profile |
| binary_profile = _CreateBinaryProfile(matching_profile, tmp_dex_output, |
| options.profman_path, tmp_dir) |
| output_files = _LayoutDex(binary_profile, tmp_dex_output, |
| options.dexlayout_path, tmp_dir) |
| if len(output_files) > 1: |
| return _ZipMultidex(tmp_dir, output_files) |
| |
| if zipfile.is_zipfile(output_files[0]): |
| return output_files[0] |
| |
| final_output = os.path.join(tmp_dir, 'dex_classes.zip') |
| _ZipAligned(output_files, final_output) |
| return final_output |
| |
| |
| def _PerformDexing(options): |
| dex_cmd = ['java', '-jar', options.r8_jar_path, 'd8', '--no-desugaring'] |
| if options.multi_dex and options.main_dex_list_path: |
| dex_cmd += ['--main-dex-list', options.main_dex_list_path] |
| if options.release: |
| dex_cmd += ['--release'] |
| if options.min_api: |
| dex_cmd += ['--min-api', options.min_api] |
| |
| with build_utils.TempDir() as tmp_dir: |
| tmp_dex_dir = os.path.join(tmp_dir, 'tmp_dex_dir') |
| os.mkdir(tmp_dex_dir) |
| _RunD8(dex_cmd, options.inputs, tmp_dex_dir) |
| dex_files = [os.path.join(tmp_dex_dir, f) for f in os.listdir(tmp_dex_dir)] |
| |
| if not options.output.endswith('.dex'): |
| tmp_dex_output = os.path.join(tmp_dir, 'tmp_dex_output.zip') |
| _ZipAligned(sorted(dex_files), tmp_dex_output) |
| else: |
| # Output to a .dex file. |
| if len(dex_files) > 1: |
| raise Exception('%d files created, expected 1' % len(dex_files)) |
| tmp_dex_output = dex_files[0] |
| |
| if options.dexlayout_profile: |
| tmp_dex_output = _PerformDexlayout(tmp_dir, tmp_dex_output, options) |
| |
| # The dex file is complete and can be moved out of tmp_dir. |
| shutil.move(tmp_dex_output, options.output) |
| |
| |
| def main(args): |
| options = _ParseArgs(args) |
| |
| input_paths = list(options.inputs) |
| if options.multi_dex and options.main_dex_list_path: |
| input_paths.append(options.main_dex_list_path) |
| |
| _PerformDexing(options) |
| |
| build_utils.WriteDepfile( |
| options.depfile, options.output, input_paths, add_pydeps=False) |
| |
| |
| if __name__ == '__main__': |
| sys.exit(main(sys.argv[1:])) |