c68b289125
Reason for revert: performance regression on AppStartup. Reverted Changes: I6522319a8:Dexpreopt: prepare to merge class loader context f... Ic8528dffd:manifest_check.py: add uses-libraries propagaged v... Bug: 235304939 Bug: 214255490 Change-Id: I054df19dbddb4897d07d74e51d7b651dfae85fbe
394 lines
14 KiB
Python
Executable file
394 lines
14 KiB
Python
Executable file
#!/usr/bin/env python
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#
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# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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"""A tool for checking that a manifest agrees with the build system."""
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from __future__ import print_function
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import argparse
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import json
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import re
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import subprocess
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import sys
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from xml.dom import minidom
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from manifest import android_ns
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from manifest import get_children_with_tag
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from manifest import parse_manifest
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from manifest import write_xml
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class ManifestMismatchError(Exception):
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pass
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def parse_args():
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"""Parse commandline arguments."""
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parser = argparse.ArgumentParser()
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parser.add_argument(
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'--uses-library',
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dest='uses_libraries',
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action='append',
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help='specify uses-library entries known to the build system')
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parser.add_argument(
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'--optional-uses-library',
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dest='optional_uses_libraries',
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action='append',
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help='specify uses-library entries known to the build system with '
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'required:false'
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)
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parser.add_argument(
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'--enforce-uses-libraries',
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dest='enforce_uses_libraries',
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action='store_true',
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help='check the uses-library entries known to the build system against '
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'the manifest'
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)
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parser.add_argument(
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'--enforce-uses-libraries-relax',
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dest='enforce_uses_libraries_relax',
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action='store_true',
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help='do not fail immediately, just save the error message to file')
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parser.add_argument(
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'--enforce-uses-libraries-status',
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dest='enforce_uses_libraries_status',
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help='output file to store check status (error message)')
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parser.add_argument(
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'--extract-target-sdk-version',
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dest='extract_target_sdk_version',
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action='store_true',
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help='print the targetSdkVersion from the manifest')
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parser.add_argument(
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'--dexpreopt-config',
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dest='dexpreopt_configs',
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action='append',
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help='a paths to a dexpreopt.config of some library')
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parser.add_argument('--aapt', dest='aapt', help='path to aapt executable')
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parser.add_argument(
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'--output', '-o', dest='output', help='output AndroidManifest.xml file')
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parser.add_argument('input', help='input AndroidManifest.xml file')
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return parser.parse_args()
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C_RED = "\033[1;31m"
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C_GREEN = "\033[1;32m"
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C_BLUE = "\033[1;34m"
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C_OFF = "\033[0m"
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C_BOLD = "\033[1m"
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def enforce_uses_libraries(manifest, required, optional, relax, is_apk, path):
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"""Verify that the <uses-library> tags in the manifest match those provided
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by the build system.
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Args:
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manifest: manifest (either parsed XML or aapt dump of APK)
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required: required libs known to the build system
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optional: optional libs known to the build system
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relax: if true, suppress error on mismatch and just write it to file
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is_apk: if the manifest comes from an APK or an XML file
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"""
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if is_apk:
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manifest_required, manifest_optional, tags = extract_uses_libs_apk(
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manifest)
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else:
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manifest_required, manifest_optional, tags = extract_uses_libs_xml(
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manifest)
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# Trim namespace component. Normally Soong does that automatically when it
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# handles module names specified in Android.bp properties. However not all
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# <uses-library> entries in the manifest correspond to real modules: some of
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# the optional libraries may be missing at build time. Therefor this script
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# accepts raw module names as spelled in Android.bp/Amdroid.mk and trims the
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# optional namespace part manually.
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required = trim_namespace_parts(required)
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optional = trim_namespace_parts(optional)
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if manifest_required == required and manifest_optional == optional:
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return None
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#pylint: disable=line-too-long
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errmsg = ''.join([
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'mismatch in the <uses-library> tags between the build system and the '
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'manifest:\n',
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'\t- required libraries in build system: %s[%s]%s\n' % (C_RED, ', '.join(required), C_OFF),
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'\t vs. in the manifest: %s[%s]%s\n' % (C_RED, ', '.join(manifest_required), C_OFF),
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'\t- optional libraries in build system: %s[%s]%s\n' % (C_RED, ', '.join(optional), C_OFF),
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'\t vs. in the manifest: %s[%s]%s\n' % (C_RED, ', '.join(manifest_optional), C_OFF),
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'\t- tags in the manifest (%s):\n' % path,
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'\t\t%s\n' % '\t\t'.join(tags),
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'%snote:%s the following options are available:\n' % (C_BLUE, C_OFF),
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'\t- to temporarily disable the check on command line, rebuild with ',
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'%sRELAX_USES_LIBRARY_CHECK=true%s' % (C_BOLD, C_OFF),
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' (this will set compiler filter "verify" and disable AOT-compilation in dexpreopt)\n',
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'\t- to temporarily disable the check for the whole product, set ',
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'%sPRODUCT_BROKEN_VERIFY_USES_LIBRARIES := true%s in the product makefiles\n' % (C_BOLD, C_OFF),
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'\t- to fix the check, make build system properties coherent with the manifest\n',
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'\t- for details, see %sbuild/make/Changes.md%s' % (C_GREEN, C_OFF),
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' and %shttps://source.android.com/devices/tech/dalvik/art-class-loader-context%s\n' % (C_GREEN, C_OFF)
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])
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#pylint: enable=line-too-long
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if not relax:
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raise ManifestMismatchError(errmsg)
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return errmsg
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MODULE_NAMESPACE = re.compile('^//[^:]+:')
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def trim_namespace_parts(modules):
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"""Trim the namespace part of each module, if present.
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Leave only the name.
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"""
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trimmed = []
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for module in modules:
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trimmed.append(MODULE_NAMESPACE.sub('', module))
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return trimmed
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def extract_uses_libs_apk(badging):
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"""Extract <uses-library> tags from the manifest of an APK."""
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pattern = re.compile("^uses-library(-not-required)?:'(.*)'$", re.MULTILINE)
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required = []
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optional = []
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lines = []
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for match in re.finditer(pattern, badging):
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lines.append(match.group(0))
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libname = match.group(2)
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if match.group(1) is None:
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required.append(libname)
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else:
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optional.append(libname)
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required = first_unique_elements(required)
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optional = first_unique_elements(optional)
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tags = first_unique_elements(lines)
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return required, optional, tags
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def extract_uses_libs_xml(xml): #pylint: disable=inconsistent-return-statements
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"""Extract <uses-library> tags from the manifest."""
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manifest = parse_manifest(xml)
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elems = get_children_with_tag(manifest, 'application')
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application = elems[0] if len(elems) == 1 else None
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if len(elems) > 1: #pylint: disable=no-else-raise
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raise RuntimeError('found multiple <application> tags')
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elif not elems:
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if uses_libraries or optional_uses_libraries: #pylint: disable=undefined-variable
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raise ManifestMismatchError('no <application> tag found')
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return
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libs = get_children_with_tag(application, 'uses-library')
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required = [uses_library_name(x) for x in libs if uses_library_required(x)]
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optional = [
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uses_library_name(x) for x in libs if not uses_library_required(x)
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]
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# render <uses-library> tags as XML for a pretty error message
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tags = []
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for lib in libs:
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tags.append(lib.toprettyxml())
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required = first_unique_elements(required)
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optional = first_unique_elements(optional)
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tags = first_unique_elements(tags)
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return required, optional, tags
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def first_unique_elements(l):
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result = []
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for x in l:
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if x not in result:
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result.append(x)
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return result
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def uses_library_name(lib):
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"""Extract the name attribute of a uses-library tag.
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Args:
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lib: a <uses-library> tag.
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"""
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name = lib.getAttributeNodeNS(android_ns, 'name')
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return name.value if name is not None else ''
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def uses_library_required(lib):
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"""Extract the required attribute of a uses-library tag.
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Args:
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lib: a <uses-library> tag.
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"""
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required = lib.getAttributeNodeNS(android_ns, 'required')
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return (required.value == 'true') if required is not None else True
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def extract_target_sdk_version(manifest, is_apk=False):
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"""Returns the targetSdkVersion from the manifest.
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Args:
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manifest: manifest (either parsed XML or aapt dump of APK)
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is_apk: if the manifest comes from an APK or an XML file
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"""
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if is_apk: #pylint: disable=no-else-return
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return extract_target_sdk_version_apk(manifest)
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else:
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return extract_target_sdk_version_xml(manifest)
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def extract_target_sdk_version_apk(badging):
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"""Extract targetSdkVersion tags from the manifest of an APK."""
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pattern = re.compile("^targetSdkVersion?:'(.*)'$", re.MULTILINE)
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for match in re.finditer(pattern, badging):
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return match.group(1)
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raise RuntimeError('cannot find targetSdkVersion in the manifest')
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def extract_target_sdk_version_xml(xml):
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"""Extract targetSdkVersion tags from the manifest."""
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manifest = parse_manifest(xml)
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# Get or insert the uses-sdk element
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uses_sdk = get_children_with_tag(manifest, 'uses-sdk')
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if len(uses_sdk) > 1: #pylint: disable=no-else-raise
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raise RuntimeError('found multiple uses-sdk elements')
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elif len(uses_sdk) == 0:
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raise RuntimeError('missing uses-sdk element')
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uses_sdk = uses_sdk[0]
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min_attr = uses_sdk.getAttributeNodeNS(android_ns, 'minSdkVersion')
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if min_attr is None:
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raise RuntimeError('minSdkVersion is not specified')
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target_attr = uses_sdk.getAttributeNodeNS(android_ns, 'targetSdkVersion')
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if target_attr is None:
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target_attr = min_attr
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return target_attr.value
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def load_dexpreopt_configs(configs):
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"""Load dexpreopt.config files and map module names to library names."""
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module_to_libname = {}
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if configs is None:
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configs = []
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for config in configs:
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with open(config, 'r') as f:
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contents = json.load(f)
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module_to_libname[contents['Name']] = contents['ProvidesUsesLibrary']
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return module_to_libname
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def translate_libnames(modules, module_to_libname):
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"""Translate module names into library names using the mapping."""
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if modules is None:
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modules = []
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libnames = []
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for name in modules:
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if name in module_to_libname:
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name = module_to_libname[name]
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libnames.append(name)
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return libnames
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def main():
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"""Program entry point."""
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try:
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args = parse_args()
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# The input can be either an XML manifest or an APK, they are parsed and
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# processed in different ways.
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is_apk = args.input.endswith('.apk')
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if is_apk:
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aapt = args.aapt if args.aapt is not None else 'aapt'
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manifest = subprocess.check_output(
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[aapt, 'dump', 'badging', args.input]).decode('utf-8')
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else:
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manifest = minidom.parse(args.input)
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if args.enforce_uses_libraries:
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# Load dexpreopt.config files and build a mapping from module
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# names to library names. This is necessary because build system
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# addresses libraries by their module name (`uses_libs`,
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# `optional_uses_libs`, `LOCAL_USES_LIBRARIES`,
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# `LOCAL_OPTIONAL_LIBRARY_NAMES` all contain module names), while
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# the manifest addresses libraries by their name.
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mod_to_lib = load_dexpreopt_configs(args.dexpreopt_configs)
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required = translate_libnames(args.uses_libraries, mod_to_lib)
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optional = translate_libnames(args.optional_uses_libraries,
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mod_to_lib)
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# Check if the <uses-library> lists in the build system agree with
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# those in the manifest. Raise an exception on mismatch, unless the
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# script was passed a special parameter to suppress exceptions.
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errmsg = enforce_uses_libraries(manifest, required, optional,
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args.enforce_uses_libraries_relax,
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is_apk, args.input)
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# Create a status file that is empty on success, or contains an
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# error message on failure. When exceptions are suppressed,
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# dexpreopt command command will check file size to determine if
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# the check has failed.
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if args.enforce_uses_libraries_status:
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with open(args.enforce_uses_libraries_status, 'w') as f:
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if errmsg is not None:
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f.write('%s\n' % errmsg)
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if args.extract_target_sdk_version:
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try:
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print(extract_target_sdk_version(manifest, is_apk))
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except: #pylint: disable=bare-except
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# Failed; don't crash, return "any" SDK version. This will
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# result in dexpreopt not adding any compatibility libraries.
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print(10000)
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if args.output:
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# XML output is supposed to be written only when this script is
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# invoked with XML input manifest, not with an APK.
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if is_apk:
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raise RuntimeError('cannot save APK manifest as XML')
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with open(args.output, 'w') as f:
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write_xml(f, manifest)
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# pylint: disable=broad-except
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except Exception as err:
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print('%serror:%s ' % (C_RED, C_OFF) + str(err), file=sys.stderr)
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sys.exit(-1)
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if __name__ == '__main__':
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main()
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