xref: /aosp_15_r20/external/cronet/android/tools/gn2bp/gn_utils.py (revision 6777b5387eb2ff775bb5750e3f5d96f37fb7352b)
1*6777b538SAndroid Build Coastguard Worker# Copyright (C) 2022 The Android Open Source Project
2*6777b538SAndroid Build Coastguard Worker#
3*6777b538SAndroid Build Coastguard Worker# Licensed under the Apache License, Version 2.0 (the "License");
4*6777b538SAndroid Build Coastguard Worker# you may not use this file except in compliance with the License.
5*6777b538SAndroid Build Coastguard Worker# You may obtain a copy of the License at
6*6777b538SAndroid Build Coastguard Worker#
7*6777b538SAndroid Build Coastguard Worker#      http://www.apache.org/licenses/LICENSE-2.0
8*6777b538SAndroid Build Coastguard Worker#
9*6777b538SAndroid Build Coastguard Worker# Unless required by applicable law or agreed to in writing, software
10*6777b538SAndroid Build Coastguard Worker# distributed under the License is distributed on an "AS IS" BASIS,
11*6777b538SAndroid Build Coastguard Worker# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12*6777b538SAndroid Build Coastguard Worker# See the License for the specific language governing permissions and
13*6777b538SAndroid Build Coastguard Worker# limitations under the License.
14*6777b538SAndroid Build Coastguard Worker
15*6777b538SAndroid Build Coastguard Worker# A collection of utilities for extracting build rule information from GN
16*6777b538SAndroid Build Coastguard Worker# projects.
17*6777b538SAndroid Build Coastguard Worker
18*6777b538SAndroid Build Coastguard Workerimport copy
19*6777b538SAndroid Build Coastguard Workerimport json
20*6777b538SAndroid Build Coastguard Workerimport logging as log
21*6777b538SAndroid Build Coastguard Workerimport os
22*6777b538SAndroid Build Coastguard Workerimport re
23*6777b538SAndroid Build Coastguard Workerimport collections
24*6777b538SAndroid Build Coastguard Worker
25*6777b538SAndroid Build Coastguard WorkerLINKER_UNIT_TYPES = ('executable', 'shared_library', 'static_library', 'source_set')
26*6777b538SAndroid Build Coastguard Worker# This is a list of java files that should not be collected
27*6777b538SAndroid Build Coastguard Worker# as they don't exist right now downstream (eg: apihelpers, cronetEngineBuilderTest).
28*6777b538SAndroid Build Coastguard Worker# This is temporary solution until they are up-streamed.
29*6777b538SAndroid Build Coastguard WorkerJAVA_FILES_TO_IGNORE = (
30*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/ByteArrayCronetCallback.java",
31*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/ContentTypeParametersParser.java",
32*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/CronetRequestCompletionListener.java",
33*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/CronetResponse.java",
34*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/ImplicitFlowControlCallback.java",
35*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/InMemoryTransformCronetCallback.java",
36*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/JsonCronetCallback.java",
37*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/RedirectHandler.java",
38*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/RedirectHandlers.java",
39*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/StringCronetCallback.java",
40*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/api/src/org/chromium/net/apihelpers/UrlRequestCallbacks.java",
41*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/test/javatests/src/org/chromium/net/CronetEngineBuilderTest.java",
42*6777b538SAndroid Build Coastguard Worker  # Api helpers does not exist downstream, hence the tests shouldn't be collected.
43*6777b538SAndroid Build Coastguard Worker  "//components/cronet/android/test/javatests/src/org/chromium/net/apihelpers/ContentTypeParametersParserTest.java",
44*6777b538SAndroid Build Coastguard Worker  # androidx-multidex is disabled on unbundled branches.
45*6777b538SAndroid Build Coastguard Worker  "//base/test/android/java/src/org/chromium/base/multidex/ChromiumMultiDexInstaller.java",
46*6777b538SAndroid Build Coastguard Worker  # This file is not used in aosp and depends on newer accessibility_test_framework.
47*6777b538SAndroid Build Coastguard Worker  "//base/test/android/javatests/src/org/chromium/base/test/BaseActivityTestRule.java",
48*6777b538SAndroid Build Coastguard Worker)
49*6777b538SAndroid Build Coastguard WorkerRESPONSE_FILE = '{{response_file_name}}'
50*6777b538SAndroid Build Coastguard WorkerTESTING_SUFFIX = "__testing"
51*6777b538SAndroid Build Coastguard WorkerAIDL_INCLUDE_DIRS_REGEX = r'--includes=\[(.*)\]'
52*6777b538SAndroid Build Coastguard WorkerAIDL_IMPORT_DIRS_REGEX = r'--imports=\[(.*)\]'
53*6777b538SAndroid Build Coastguard WorkerPROTO_IMPORT_DIRS_REGEX = r'--import-dir=(.*)'
54*6777b538SAndroid Build Coastguard Worker
55*6777b538SAndroid Build Coastguard Workerdef repo_root():
56*6777b538SAndroid Build Coastguard Worker  """Returns an absolute path to the repository root."""
57*6777b538SAndroid Build Coastguard Worker  return os.path.join(
58*6777b538SAndroid Build Coastguard Worker      os.path.realpath(os.path.dirname(__file__)), os.path.pardir)
59*6777b538SAndroid Build Coastguard Worker
60*6777b538SAndroid Build Coastguard Workerdef _get_build_path_from_label(target_name: str) -> str:
61*6777b538SAndroid Build Coastguard Worker  """Returns the path to the BUILD file for which this target was declared."""
62*6777b538SAndroid Build Coastguard Worker  return target_name[2:].split(":")[0]
63*6777b538SAndroid Build Coastguard Worker
64*6777b538SAndroid Build Coastguard Workerdef _clean_string(str):
65*6777b538SAndroid Build Coastguard Worker  return str.replace('\\', '').replace('../../', '').replace('"', '').strip()
66*6777b538SAndroid Build Coastguard Worker
67*6777b538SAndroid Build Coastguard Workerdef _clean_aidl_import(orig_str):
68*6777b538SAndroid Build Coastguard Worker  str = _clean_string(orig_str)
69*6777b538SAndroid Build Coastguard Worker  src_idx = str.find("src/")
70*6777b538SAndroid Build Coastguard Worker  if src_idx == -1:
71*6777b538SAndroid Build Coastguard Worker    raise ValueError(f"Unable to clean aidl import {orig_str}")
72*6777b538SAndroid Build Coastguard Worker  return str[:src_idx + len("src")]
73*6777b538SAndroid Build Coastguard Worker
74*6777b538SAndroid Build Coastguard Workerdef _extract_includes_from_aidl_args(args):
75*6777b538SAndroid Build Coastguard Worker  ret = []
76*6777b538SAndroid Build Coastguard Worker  for arg in args:
77*6777b538SAndroid Build Coastguard Worker    is_match = re.match(AIDL_INCLUDE_DIRS_REGEX, arg)
78*6777b538SAndroid Build Coastguard Worker    if is_match:
79*6777b538SAndroid Build Coastguard Worker      local_includes = is_match.group(1).split(",")
80*6777b538SAndroid Build Coastguard Worker      ret += [_clean_string(local_include) for local_include in local_includes]
81*6777b538SAndroid Build Coastguard Worker    # Treat imports like include for aidl by removing the package suffix.
82*6777b538SAndroid Build Coastguard Worker    is_match = re.match(AIDL_IMPORT_DIRS_REGEX, arg)
83*6777b538SAndroid Build Coastguard Worker    if is_match:
84*6777b538SAndroid Build Coastguard Worker      local_imports = is_match.group(1).split(",")
85*6777b538SAndroid Build Coastguard Worker      # Skip "third_party/android_sdk/public/platforms/android-34/framework.aidl" because Soong
86*6777b538SAndroid Build Coastguard Worker      # already links against the AIDL framework implicitly.
87*6777b538SAndroid Build Coastguard Worker      ret += [_clean_aidl_import(local_import) for local_import in local_imports
88*6777b538SAndroid Build Coastguard Worker              if "framework.aidl" not in local_import]
89*6777b538SAndroid Build Coastguard Worker  return ret
90*6777b538SAndroid Build Coastguard Worker
91*6777b538SAndroid Build Coastguard Workerdef contains_aidl(sources):
92*6777b538SAndroid Build Coastguard Worker  return any([src.endswith(".aidl") for src in sources])
93*6777b538SAndroid Build Coastguard Worker
94*6777b538SAndroid Build Coastguard Workerdef _get_jni_registration_deps(gn_target_name, gn_desc):
95*6777b538SAndroid Build Coastguard Worker  # the dependencies are stored within another target with the same name
96*6777b538SAndroid Build Coastguard Worker  # and a __java_sources suffix, see
97*6777b538SAndroid Build Coastguard Worker  # https://source.chromium.org/chromium/chromium/src/+/main:third_party/jni_zero/jni_zero.gni;l=117;drc=78e8e27142ed3fddf04fbcd122507517a87cb9ad
98*6777b538SAndroid Build Coastguard Worker  # for the auto-generated target name.
99*6777b538SAndroid Build Coastguard Worker  jni_registration_java_target = f'{gn_target_name}__java_sources'
100*6777b538SAndroid Build Coastguard Worker  if jni_registration_java_target in gn_desc.keys():
101*6777b538SAndroid Build Coastguard Worker    return gn_desc[jni_registration_java_target]["deps"]
102*6777b538SAndroid Build Coastguard Worker  return set()
103*6777b538SAndroid Build Coastguard Worker
104*6777b538SAndroid Build Coastguard Workerdef label_to_path(label):
105*6777b538SAndroid Build Coastguard Worker  """Turn a GN output label (e.g., //some_dir/file.cc) into a path."""
106*6777b538SAndroid Build Coastguard Worker  assert label.startswith('//')
107*6777b538SAndroid Build Coastguard Worker  return label[2:] or ""
108*6777b538SAndroid Build Coastguard Worker
109*6777b538SAndroid Build Coastguard Workerdef label_without_toolchain(label):
110*6777b538SAndroid Build Coastguard Worker  """Strips the toolchain from a GN label.
111*6777b538SAndroid Build Coastguard Worker
112*6777b538SAndroid Build Coastguard Worker    Return a GN label (e.g //buildtools:protobuf(//gn/standalone/toolchain:
113*6777b538SAndroid Build Coastguard Worker    gcc_like_host) without the parenthesised toolchain part.
114*6777b538SAndroid Build Coastguard Worker    """
115*6777b538SAndroid Build Coastguard Worker  return label.split('(')[0]
116*6777b538SAndroid Build Coastguard Worker
117*6777b538SAndroid Build Coastguard Worker
118*6777b538SAndroid Build Coastguard Workerdef _is_java_source(src):
119*6777b538SAndroid Build Coastguard Worker  return os.path.splitext(src)[1] == '.java' and not src.startswith("//out/")
120*6777b538SAndroid Build Coastguard Worker
121*6777b538SAndroid Build Coastguard Worker
122*6777b538SAndroid Build Coastguard Workerclass GnParser(object):
123*6777b538SAndroid Build Coastguard Worker  """A parser with some cleverness for GN json desc files
124*6777b538SAndroid Build Coastguard Worker
125*6777b538SAndroid Build Coastguard Worker    The main goals of this parser are:
126*6777b538SAndroid Build Coastguard Worker    1) Deal with the fact that other build systems don't have an equivalent
127*6777b538SAndroid Build Coastguard Worker       notion to GN's source_set. Conversely to Bazel's and Soong's filegroups,
128*6777b538SAndroid Build Coastguard Worker       GN source_sets expect that dependencies, cflags and other source_set
129*6777b538SAndroid Build Coastguard Worker       properties propagate up to the linker unit (static_library, executable or
130*6777b538SAndroid Build Coastguard Worker       shared_library). This parser simulates the same behavior: when a
131*6777b538SAndroid Build Coastguard Worker       source_set is encountered, some of its variables (cflags and such) are
132*6777b538SAndroid Build Coastguard Worker       copied up to the dependent targets. This is to allow gen_xxx to create
133*6777b538SAndroid Build Coastguard Worker       one filegroup for each source_set and then squash all the other flags
134*6777b538SAndroid Build Coastguard Worker       onto the linker unit.
135*6777b538SAndroid Build Coastguard Worker    2) Detect and special-case protobuf targets, figuring out the protoc-plugin
136*6777b538SAndroid Build Coastguard Worker       being used.
137*6777b538SAndroid Build Coastguard Worker    """
138*6777b538SAndroid Build Coastguard Worker
139*6777b538SAndroid Build Coastguard Worker  class Target(object):
140*6777b538SAndroid Build Coastguard Worker    """Reperesents A GN target.
141*6777b538SAndroid Build Coastguard Worker
142*6777b538SAndroid Build Coastguard Worker        Maked properties are propagated up the dependency chain when a
143*6777b538SAndroid Build Coastguard Worker        source_set dependency is encountered.
144*6777b538SAndroid Build Coastguard Worker        """
145*6777b538SAndroid Build Coastguard Worker    class Arch():
146*6777b538SAndroid Build Coastguard Worker      """Architecture-dependent properties
147*6777b538SAndroid Build Coastguard Worker        """
148*6777b538SAndroid Build Coastguard Worker      def __init__(self):
149*6777b538SAndroid Build Coastguard Worker        self.sources = set()
150*6777b538SAndroid Build Coastguard Worker        self.cflags = set()
151*6777b538SAndroid Build Coastguard Worker        self.defines = set()
152*6777b538SAndroid Build Coastguard Worker        self.include_dirs = set()
153*6777b538SAndroid Build Coastguard Worker        self.deps = set()
154*6777b538SAndroid Build Coastguard Worker        self.transitive_static_libs_deps = set()
155*6777b538SAndroid Build Coastguard Worker        self.ldflags = set()
156*6777b538SAndroid Build Coastguard Worker
157*6777b538SAndroid Build Coastguard Worker        # These are valid only for type == 'action'
158*6777b538SAndroid Build Coastguard Worker        self.inputs = set()
159*6777b538SAndroid Build Coastguard Worker        self.outputs = set()
160*6777b538SAndroid Build Coastguard Worker        self.args = []
161*6777b538SAndroid Build Coastguard Worker        self.response_file_contents = ''
162*6777b538SAndroid Build Coastguard Worker        self.rust_flags = list()
163*6777b538SAndroid Build Coastguard Worker
164*6777b538SAndroid Build Coastguard Worker    def __init__(self, name, type):
165*6777b538SAndroid Build Coastguard Worker      self.name = name  # e.g. //src/ipc:ipc
166*6777b538SAndroid Build Coastguard Worker
167*6777b538SAndroid Build Coastguard Worker      VALID_TYPES = ('static_library', 'shared_library', 'executable', 'group',
168*6777b538SAndroid Build Coastguard Worker                     'action', 'source_set', 'proto_library', 'copy',
169*6777b538SAndroid Build Coastguard Worker                     'action_foreach', 'generated_file', "rust_library", "rust_proc_macro")
170*6777b538SAndroid Build Coastguard Worker      assert (type in VALID_TYPES), f"Unable to parse target {name} with type {type}."
171*6777b538SAndroid Build Coastguard Worker      self.type = type
172*6777b538SAndroid Build Coastguard Worker      self.testonly = False
173*6777b538SAndroid Build Coastguard Worker      self.toolchain = None
174*6777b538SAndroid Build Coastguard Worker
175*6777b538SAndroid Build Coastguard Worker      # These are valid only for type == proto_library.
176*6777b538SAndroid Build Coastguard Worker      # This is typically: 'proto', 'protozero', 'ipc'.
177*6777b538SAndroid Build Coastguard Worker      self.proto_plugin = None
178*6777b538SAndroid Build Coastguard Worker      self.proto_paths = set()
179*6777b538SAndroid Build Coastguard Worker      self.proto_exports = set()
180*6777b538SAndroid Build Coastguard Worker      self.proto_in_dir = ""
181*6777b538SAndroid Build Coastguard Worker
182*6777b538SAndroid Build Coastguard Worker      # TODO(primiano): consider whether the public section should be part of
183*6777b538SAndroid Build Coastguard Worker      # bubbled-up sources.
184*6777b538SAndroid Build Coastguard Worker      self.public_headers = set()  # 'public'
185*6777b538SAndroid Build Coastguard Worker
186*6777b538SAndroid Build Coastguard Worker      # These are valid only for type == 'action'
187*6777b538SAndroid Build Coastguard Worker      self.script = ''
188*6777b538SAndroid Build Coastguard Worker
189*6777b538SAndroid Build Coastguard Worker      # These variables are propagated up when encountering a dependency
190*6777b538SAndroid Build Coastguard Worker      # on a source_set target.
191*6777b538SAndroid Build Coastguard Worker      self.libs = set()
192*6777b538SAndroid Build Coastguard Worker      self.proto_deps = set()
193*6777b538SAndroid Build Coastguard Worker      self.rtti = False
194*6777b538SAndroid Build Coastguard Worker
195*6777b538SAndroid Build Coastguard Worker      # TODO: come up with a better way to only run this once.
196*6777b538SAndroid Build Coastguard Worker      # is_finalized tracks whether finalize() was called on this target.
197*6777b538SAndroid Build Coastguard Worker      self.is_finalized = False
198*6777b538SAndroid Build Coastguard Worker      # 'common' is a pseudo-architecture used to store common architecture dependent properties (to
199*6777b538SAndroid Build Coastguard Worker      # make handling of common vs architecture-specific arguments more consistent).
200*6777b538SAndroid Build Coastguard Worker      self.arch = {'common': self.Arch()}
201*6777b538SAndroid Build Coastguard Worker
202*6777b538SAndroid Build Coastguard Worker      # This is used to get the name/version of libcronet
203*6777b538SAndroid Build Coastguard Worker      self.output_name = None
204*6777b538SAndroid Build Coastguard Worker      # Local Includes used for AIDL
205*6777b538SAndroid Build Coastguard Worker      self.local_aidl_includes = set()
206*6777b538SAndroid Build Coastguard Worker      # Each java_target will contain the transitive java sources found
207*6777b538SAndroid Build Coastguard Worker      # in generate_jni type target.
208*6777b538SAndroid Build Coastguard Worker      self.transitive_jni_java_sources = set()
209*6777b538SAndroid Build Coastguard Worker      # Deps for JNI Registration. Those are not added to deps so that
210*6777b538SAndroid Build Coastguard Worker      # the generated module would not depend on those deps.
211*6777b538SAndroid Build Coastguard Worker      self.jni_registration_java_deps = set()
212*6777b538SAndroid Build Coastguard Worker      # Path to the java jar path. This is used if the java library is
213*6777b538SAndroid Build Coastguard Worker      # an import of a JAR like `android_java_prebuilt` targets in GN
214*6777b538SAndroid Build Coastguard Worker      self.jar_path = ""
215*6777b538SAndroid Build Coastguard Worker      self.sdk_version = ""
216*6777b538SAndroid Build Coastguard Worker      self.build_file_path = ""
217*6777b538SAndroid Build Coastguard Worker      self.crate_name = None
218*6777b538SAndroid Build Coastguard Worker      self.crate_root = None
219*6777b538SAndroid Build Coastguard Worker
220*6777b538SAndroid Build Coastguard Worker    # Properties to forward access to common arch.
221*6777b538SAndroid Build Coastguard Worker    # TODO: delete these after the transition has been completed.
222*6777b538SAndroid Build Coastguard Worker    @property
223*6777b538SAndroid Build Coastguard Worker    def sources(self):
224*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].sources
225*6777b538SAndroid Build Coastguard Worker
226*6777b538SAndroid Build Coastguard Worker    @sources.setter
227*6777b538SAndroid Build Coastguard Worker    def sources(self, val):
228*6777b538SAndroid Build Coastguard Worker      self.arch['common'].sources = val
229*6777b538SAndroid Build Coastguard Worker
230*6777b538SAndroid Build Coastguard Worker    @property
231*6777b538SAndroid Build Coastguard Worker    def inputs(self):
232*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].inputs
233*6777b538SAndroid Build Coastguard Worker
234*6777b538SAndroid Build Coastguard Worker    @inputs.setter
235*6777b538SAndroid Build Coastguard Worker    def inputs(self, val):
236*6777b538SAndroid Build Coastguard Worker      self.arch['common'].inputs = val
237*6777b538SAndroid Build Coastguard Worker
238*6777b538SAndroid Build Coastguard Worker    @property
239*6777b538SAndroid Build Coastguard Worker    def outputs(self):
240*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].outputs
241*6777b538SAndroid Build Coastguard Worker
242*6777b538SAndroid Build Coastguard Worker    @outputs.setter
243*6777b538SAndroid Build Coastguard Worker    def outputs(self, val):
244*6777b538SAndroid Build Coastguard Worker      self.arch['common'].outputs = val
245*6777b538SAndroid Build Coastguard Worker
246*6777b538SAndroid Build Coastguard Worker    @property
247*6777b538SAndroid Build Coastguard Worker    def args(self):
248*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].args
249*6777b538SAndroid Build Coastguard Worker
250*6777b538SAndroid Build Coastguard Worker    @args.setter
251*6777b538SAndroid Build Coastguard Worker    def args(self, val):
252*6777b538SAndroid Build Coastguard Worker      self.arch['common'].args = val
253*6777b538SAndroid Build Coastguard Worker
254*6777b538SAndroid Build Coastguard Worker    @property
255*6777b538SAndroid Build Coastguard Worker    def response_file_contents(self):
256*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].response_file_contents
257*6777b538SAndroid Build Coastguard Worker
258*6777b538SAndroid Build Coastguard Worker    @response_file_contents.setter
259*6777b538SAndroid Build Coastguard Worker    def response_file_contents(self, val):
260*6777b538SAndroid Build Coastguard Worker      self.arch['common'].response_file_contents = val
261*6777b538SAndroid Build Coastguard Worker
262*6777b538SAndroid Build Coastguard Worker    @property
263*6777b538SAndroid Build Coastguard Worker    def cflags(self):
264*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].cflags
265*6777b538SAndroid Build Coastguard Worker
266*6777b538SAndroid Build Coastguard Worker    @property
267*6777b538SAndroid Build Coastguard Worker    def defines(self):
268*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].defines
269*6777b538SAndroid Build Coastguard Worker
270*6777b538SAndroid Build Coastguard Worker    @property
271*6777b538SAndroid Build Coastguard Worker    def deps(self):
272*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].deps
273*6777b538SAndroid Build Coastguard Worker
274*6777b538SAndroid Build Coastguard Worker    @deps.setter
275*6777b538SAndroid Build Coastguard Worker    def deps(self, val):
276*6777b538SAndroid Build Coastguard Worker      self.arch['common'].deps = val
277*6777b538SAndroid Build Coastguard Worker
278*6777b538SAndroid Build Coastguard Worker    @property
279*6777b538SAndroid Build Coastguard Worker    def rust_flags(self):
280*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].rust_flags
281*6777b538SAndroid Build Coastguard Worker
282*6777b538SAndroid Build Coastguard Worker    @rust_flags.setter
283*6777b538SAndroid Build Coastguard Worker    def rust_flags(self, val):
284*6777b538SAndroid Build Coastguard Worker      self.arch['common'].rust_flags = val
285*6777b538SAndroid Build Coastguard Worker
286*6777b538SAndroid Build Coastguard Worker    @property
287*6777b538SAndroid Build Coastguard Worker    def include_dirs(self):
288*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].include_dirs
289*6777b538SAndroid Build Coastguard Worker
290*6777b538SAndroid Build Coastguard Worker    @property
291*6777b538SAndroid Build Coastguard Worker    def ldflags(self):
292*6777b538SAndroid Build Coastguard Worker      return self.arch['common'].ldflags
293*6777b538SAndroid Build Coastguard Worker
294*6777b538SAndroid Build Coastguard Worker    def host_supported(self):
295*6777b538SAndroid Build Coastguard Worker      return 'host' in self.arch
296*6777b538SAndroid Build Coastguard Worker
297*6777b538SAndroid Build Coastguard Worker    def device_supported(self):
298*6777b538SAndroid Build Coastguard Worker      return any([name.startswith('android') for name in self.arch.keys()])
299*6777b538SAndroid Build Coastguard Worker
300*6777b538SAndroid Build Coastguard Worker    def is_linker_unit_type(self):
301*6777b538SAndroid Build Coastguard Worker      return self.type in LINKER_UNIT_TYPES
302*6777b538SAndroid Build Coastguard Worker
303*6777b538SAndroid Build Coastguard Worker    def __lt__(self, other):
304*6777b538SAndroid Build Coastguard Worker      if isinstance(other, self.__class__):
305*6777b538SAndroid Build Coastguard Worker        return self.name < other.name
306*6777b538SAndroid Build Coastguard Worker      raise TypeError(
307*6777b538SAndroid Build Coastguard Worker          '\'<\' not supported between instances of \'%s\' and \'%s\'' %
308*6777b538SAndroid Build Coastguard Worker          (type(self).__name__, type(other).__name__))
309*6777b538SAndroid Build Coastguard Worker
310*6777b538SAndroid Build Coastguard Worker    def __repr__(self):
311*6777b538SAndroid Build Coastguard Worker      return json.dumps({
312*6777b538SAndroid Build Coastguard Worker          k: (list(sorted(v)) if isinstance(v, set) else v)
313*6777b538SAndroid Build Coastguard Worker          for (k, v) in self.__dict__.items()
314*6777b538SAndroid Build Coastguard Worker      },
315*6777b538SAndroid Build Coastguard Worker                        indent=4,
316*6777b538SAndroid Build Coastguard Worker                        sort_keys=True)
317*6777b538SAndroid Build Coastguard Worker
318*6777b538SAndroid Build Coastguard Worker    def update(self, other, arch):
319*6777b538SAndroid Build Coastguard Worker      for key in ('cflags', 'defines', 'deps', 'include_dirs', 'ldflags',
320*6777b538SAndroid Build Coastguard Worker                  'proto_deps', 'libs', 'proto_paths'):
321*6777b538SAndroid Build Coastguard Worker        getattr(self, key).update(getattr(other, key, []))
322*6777b538SAndroid Build Coastguard Worker
323*6777b538SAndroid Build Coastguard Worker      for key_in_arch in ('cflags', 'defines', 'include_dirs', 'deps', 'ldflags'):
324*6777b538SAndroid Build Coastguard Worker        getattr(self.arch[arch], key_in_arch).update(getattr(other.arch[arch], key_in_arch, []))
325*6777b538SAndroid Build Coastguard Worker
326*6777b538SAndroid Build Coastguard Worker    def get_archs(self):
327*6777b538SAndroid Build Coastguard Worker      """ Returns a dict of archs without the common arch """
328*6777b538SAndroid Build Coastguard Worker      return {arch: val for arch, val in self.arch.items() if arch != 'common'}
329*6777b538SAndroid Build Coastguard Worker
330*6777b538SAndroid Build Coastguard Worker    def _finalize_set_attribute(self, key):
331*6777b538SAndroid Build Coastguard Worker      # Target contains the intersection of arch-dependent properties
332*6777b538SAndroid Build Coastguard Worker      getattr(self, key).update(set.intersection(*[getattr(arch, key) for arch in
333*6777b538SAndroid Build Coastguard Worker                                                   self.get_archs().values()]))
334*6777b538SAndroid Build Coastguard Worker
335*6777b538SAndroid Build Coastguard Worker      # Deduplicate arch-dependent properties
336*6777b538SAndroid Build Coastguard Worker      for arch in self.get_archs().values():
337*6777b538SAndroid Build Coastguard Worker        getattr(arch, key).difference_update(getattr(self, key))
338*6777b538SAndroid Build Coastguard Worker
339*6777b538SAndroid Build Coastguard Worker    def _finalize_non_set_attribute(self, key):
340*6777b538SAndroid Build Coastguard Worker      # Only when all the arch has the same non empty value, move the value to the target common
341*6777b538SAndroid Build Coastguard Worker      val = getattr(list(self.get_archs().values())[0], key)
342*6777b538SAndroid Build Coastguard Worker      if val and all([val == getattr(arch, key) for arch in self.get_archs().values()]):
343*6777b538SAndroid Build Coastguard Worker        setattr(self, key, copy.deepcopy(val))
344*6777b538SAndroid Build Coastguard Worker
345*6777b538SAndroid Build Coastguard Worker    def _finalize_attribute(self, key):
346*6777b538SAndroid Build Coastguard Worker      val = getattr(self, key)
347*6777b538SAndroid Build Coastguard Worker      if isinstance(val, set):
348*6777b538SAndroid Build Coastguard Worker        self._finalize_set_attribute(key)
349*6777b538SAndroid Build Coastguard Worker      elif isinstance(val, (list, str)):
350*6777b538SAndroid Build Coastguard Worker        self._finalize_non_set_attribute(key)
351*6777b538SAndroid Build Coastguard Worker      else:
352*6777b538SAndroid Build Coastguard Worker        raise TypeError(f'Unsupported type: {type(val)}')
353*6777b538SAndroid Build Coastguard Worker
354*6777b538SAndroid Build Coastguard Worker    def finalize(self):
355*6777b538SAndroid Build Coastguard Worker      """Move common properties out of arch-dependent subobjects to Target object.
356*6777b538SAndroid Build Coastguard Worker
357*6777b538SAndroid Build Coastguard Worker        TODO: find a better name for this function.
358*6777b538SAndroid Build Coastguard Worker        """
359*6777b538SAndroid Build Coastguard Worker      if self.is_finalized:
360*6777b538SAndroid Build Coastguard Worker        return
361*6777b538SAndroid Build Coastguard Worker      self.is_finalized = True
362*6777b538SAndroid Build Coastguard Worker
363*6777b538SAndroid Build Coastguard Worker      if len(self.arch) == 1:
364*6777b538SAndroid Build Coastguard Worker        return
365*6777b538SAndroid Build Coastguard Worker
366*6777b538SAndroid Build Coastguard Worker      for key in ('sources', 'cflags', 'defines', 'include_dirs', 'deps',
367*6777b538SAndroid Build Coastguard Worker                  'inputs', 'outputs', 'args', 'response_file_contents', 'ldflags', 'rust_flags'):
368*6777b538SAndroid Build Coastguard Worker        self._finalize_attribute(key)
369*6777b538SAndroid Build Coastguard Worker
370*6777b538SAndroid Build Coastguard Worker    def get_target_name(self):
371*6777b538SAndroid Build Coastguard Worker      return self.name[self.name.find(":") + 1:]
372*6777b538SAndroid Build Coastguard Worker
373*6777b538SAndroid Build Coastguard Worker
374*6777b538SAndroid Build Coastguard Worker  def __init__(self, builtin_deps, build_script_outputs):
375*6777b538SAndroid Build Coastguard Worker    self.builtin_deps = builtin_deps
376*6777b538SAndroid Build Coastguard Worker    self.build_script_outputs = build_script_outputs
377*6777b538SAndroid Build Coastguard Worker    self.all_targets = {}
378*6777b538SAndroid Build Coastguard Worker    self.jni_java_sources = set()
379*6777b538SAndroid Build Coastguard Worker
380*6777b538SAndroid Build Coastguard Worker
381*6777b538SAndroid Build Coastguard Worker  def _get_response_file_contents(self, action_desc):
382*6777b538SAndroid Build Coastguard Worker    # response_file_contents are formatted as:
383*6777b538SAndroid Build Coastguard Worker    # ['--flags', '--flag=true && false'] and need to be formatted as:
384*6777b538SAndroid Build Coastguard Worker    # '--flags --flag=\"true && false\"'
385*6777b538SAndroid Build Coastguard Worker    flags = action_desc.get('response_file_contents', [])
386*6777b538SAndroid Build Coastguard Worker    formatted_flags = []
387*6777b538SAndroid Build Coastguard Worker    for flag in flags:
388*6777b538SAndroid Build Coastguard Worker      if '=' in flag:
389*6777b538SAndroid Build Coastguard Worker        key, val = flag.split('=')
390*6777b538SAndroid Build Coastguard Worker        formatted_flags.append('%s=\\"%s\\"' % (key, val))
391*6777b538SAndroid Build Coastguard Worker      else:
392*6777b538SAndroid Build Coastguard Worker        formatted_flags.append(flag)
393*6777b538SAndroid Build Coastguard Worker
394*6777b538SAndroid Build Coastguard Worker    return ' '.join(formatted_flags)
395*6777b538SAndroid Build Coastguard Worker
396*6777b538SAndroid Build Coastguard Worker  def _is_java_group(self, type_, target_name):
397*6777b538SAndroid Build Coastguard Worker    # Per https://chromium.googlesource.com/chromium/src/build/+/HEAD/android/docs/java_toolchain.md
398*6777b538SAndroid Build Coastguard Worker    # java target names must end in "_java".
399*6777b538SAndroid Build Coastguard Worker    # TODO: There are some other possible variations we might need to support.
400*6777b538SAndroid Build Coastguard Worker    return type_ == 'group' and target_name.endswith('_java')
401*6777b538SAndroid Build Coastguard Worker
402*6777b538SAndroid Build Coastguard Worker  def _get_arch(self, toolchain):
403*6777b538SAndroid Build Coastguard Worker    if toolchain == '//build/toolchain/android:android_clang_x86':
404*6777b538SAndroid Build Coastguard Worker      return 'android_x86', 'x86'
405*6777b538SAndroid Build Coastguard Worker    elif toolchain == '//build/toolchain/android:android_clang_x64':
406*6777b538SAndroid Build Coastguard Worker      return 'android_x86_64', 'x64'
407*6777b538SAndroid Build Coastguard Worker    elif toolchain == '//build/toolchain/android:android_clang_arm':
408*6777b538SAndroid Build Coastguard Worker      return 'android_arm', 'arm'
409*6777b538SAndroid Build Coastguard Worker    elif toolchain == '//build/toolchain/android:android_clang_arm64':
410*6777b538SAndroid Build Coastguard Worker      return 'android_arm64', 'arm64'
411*6777b538SAndroid Build Coastguard Worker    elif toolchain == '//build/toolchain/android:android_clang_riscv64':
412*6777b538SAndroid Build Coastguard Worker      return 'android_riscv64', 'riscv64'
413*6777b538SAndroid Build Coastguard Worker    else:
414*6777b538SAndroid Build Coastguard Worker      return 'host', 'host'
415*6777b538SAndroid Build Coastguard Worker
416*6777b538SAndroid Build Coastguard Worker  def get_target(self, gn_target_name):
417*6777b538SAndroid Build Coastguard Worker    """Returns a Target object from the fully qualified GN target name.
418*6777b538SAndroid Build Coastguard Worker
419*6777b538SAndroid Build Coastguard Worker      get_target() requires that parse_gn_desc() has already been called.
420*6777b538SAndroid Build Coastguard Worker      """
421*6777b538SAndroid Build Coastguard Worker    # Run this every time as parse_gn_desc can be called at any time.
422*6777b538SAndroid Build Coastguard Worker    for target in self.all_targets.values():
423*6777b538SAndroid Build Coastguard Worker      target.finalize()
424*6777b538SAndroid Build Coastguard Worker
425*6777b538SAndroid Build Coastguard Worker    return self.all_targets[label_without_toolchain(gn_target_name)]
426*6777b538SAndroid Build Coastguard Worker
427*6777b538SAndroid Build Coastguard Worker  def parse_gn_desc(self, gn_desc, gn_target_name, java_group_name=None, is_test_target=False):
428*6777b538SAndroid Build Coastguard Worker    """Parses a gn desc tree and resolves all target dependencies.
429*6777b538SAndroid Build Coastguard Worker
430*6777b538SAndroid Build Coastguard Worker        It bubbles up variables from source_set dependencies as described in the
431*6777b538SAndroid Build Coastguard Worker        class-level comments.
432*6777b538SAndroid Build Coastguard Worker        """
433*6777b538SAndroid Build Coastguard Worker    # Use name without toolchain for targets to support targets built for
434*6777b538SAndroid Build Coastguard Worker    # multiple archs.
435*6777b538SAndroid Build Coastguard Worker    target_name = label_without_toolchain(gn_target_name)
436*6777b538SAndroid Build Coastguard Worker    desc = gn_desc[gn_target_name]
437*6777b538SAndroid Build Coastguard Worker    type_ = desc['type']
438*6777b538SAndroid Build Coastguard Worker    arch, chromium_arch = self._get_arch(desc['toolchain'])
439*6777b538SAndroid Build Coastguard Worker    metadata = desc.get("metadata", {})
440*6777b538SAndroid Build Coastguard Worker
441*6777b538SAndroid Build Coastguard Worker    if is_test_target:
442*6777b538SAndroid Build Coastguard Worker      target_name += TESTING_SUFFIX
443*6777b538SAndroid Build Coastguard Worker
444*6777b538SAndroid Build Coastguard Worker    target = self.all_targets.get(target_name)
445*6777b538SAndroid Build Coastguard Worker    if target is None:
446*6777b538SAndroid Build Coastguard Worker      target = GnParser.Target(target_name, type_)
447*6777b538SAndroid Build Coastguard Worker      self.all_targets[target_name] = target
448*6777b538SAndroid Build Coastguard Worker
449*6777b538SAndroid Build Coastguard Worker    if arch not in target.arch:
450*6777b538SAndroid Build Coastguard Worker      target.arch[arch] = GnParser.Target.Arch()
451*6777b538SAndroid Build Coastguard Worker    else:
452*6777b538SAndroid Build Coastguard Worker      return target  # Target already processed.
453*6777b538SAndroid Build Coastguard Worker
454*6777b538SAndroid Build Coastguard Worker    if 'target_type' in metadata.keys() and metadata["target_type"][0] == 'java_library':
455*6777b538SAndroid Build Coastguard Worker      target.type = 'java_library'
456*6777b538SAndroid Build Coastguard Worker
457*6777b538SAndroid Build Coastguard Worker    if target.name in self.builtin_deps:
458*6777b538SAndroid Build Coastguard Worker      # return early, no need to parse any further as the module is a builtin.
459*6777b538SAndroid Build Coastguard Worker      return target
460*6777b538SAndroid Build Coastguard Worker
461*6777b538SAndroid Build Coastguard Worker    if (target_name.startswith("//build/rust/std") or
462*6777b538SAndroid Build Coastguard Worker        desc.get("crate_name", "").endswith("_build_script")):
463*6777b538SAndroid Build Coastguard Worker      # We intentionally don't parse build/rust/std as we use AOSP's stdlib.
464*6777b538SAndroid Build Coastguard Worker      # Don't parse build_script as we can't execute them in AOSP, we use a different
465*6777b538SAndroid Build Coastguard Worker      # source of truth.
466*6777b538SAndroid Build Coastguard Worker      return target
467*6777b538SAndroid Build Coastguard Worker
468*6777b538SAndroid Build Coastguard Worker    target.testonly = desc.get('testonly', False)
469*6777b538SAndroid Build Coastguard Worker
470*6777b538SAndroid Build Coastguard Worker    deps = desc.get("deps", {})
471*6777b538SAndroid Build Coastguard Worker    if desc.get("script", "") == "//tools/protoc_wrapper/protoc_wrapper.py":
472*6777b538SAndroid Build Coastguard Worker      target.type = 'proto_library'
473*6777b538SAndroid Build Coastguard Worker      target.proto_plugin = "proto"
474*6777b538SAndroid Build Coastguard Worker      target.proto_paths.update(self.get_proto_paths(desc))
475*6777b538SAndroid Build Coastguard Worker      target.proto_exports.update(self.get_proto_exports(desc))
476*6777b538SAndroid Build Coastguard Worker      target.proto_in_dir = self.get_proto_in_dir(desc)
477*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(desc.get('sources', []))
478*6777b538SAndroid Build Coastguard Worker      target.arch[arch].inputs.update(desc.get('inputs', []))
479*6777b538SAndroid Build Coastguard Worker    elif target.type == 'source_set':
480*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(source for source in desc.get('sources', []) if not source.startswith("//out"))
481*6777b538SAndroid Build Coastguard Worker    elif target.type == "rust_executable":
482*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(source for source in desc.get('sources', []) if not source.startswith("//out"))
483*6777b538SAndroid Build Coastguard Worker    elif target.is_linker_unit_type():
484*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(source for source in desc.get('sources', []) if not source.startswith("//out"))
485*6777b538SAndroid Build Coastguard Worker    elif target.type == 'java_library':
486*6777b538SAndroid Build Coastguard Worker      sources = set()
487*6777b538SAndroid Build Coastguard Worker      for java_source in metadata.get("source_files", []):
488*6777b538SAndroid Build Coastguard Worker        if not java_source.startswith("//out") and java_source not in JAVA_FILES_TO_IGNORE:
489*6777b538SAndroid Build Coastguard Worker          sources.add(java_source)
490*6777b538SAndroid Build Coastguard Worker      target.sources.update(sources)
491*6777b538SAndroid Build Coastguard Worker      # Metadata attributes must be list, for jar_path, it is always a list
492*6777b538SAndroid Build Coastguard Worker      # of size one, the first element is an empty string if `jar_path` is not
493*6777b538SAndroid Build Coastguard Worker      # defined otherwise it is a path.
494*6777b538SAndroid Build Coastguard Worker      if metadata.get("jar_path", [""])[0]:
495*6777b538SAndroid Build Coastguard Worker        target.jar_path = label_to_path(metadata["jar_path"][0])
496*6777b538SAndroid Build Coastguard Worker      target.sdk_version = metadata.get('sdk_version', ['current'])[0]
497*6777b538SAndroid Build Coastguard Worker      deps = metadata.get("all_deps", {})
498*6777b538SAndroid Build Coastguard Worker      log.info('Found Java Target %s', target.name)
499*6777b538SAndroid Build Coastguard Worker    elif target.script == "//build/android/gyp/aidl.py":
500*6777b538SAndroid Build Coastguard Worker      target.type = "java_library"
501*6777b538SAndroid Build Coastguard Worker      target.sources.update(desc.get('sources', {}))
502*6777b538SAndroid Build Coastguard Worker      target.local_aidl_includes = _extract_includes_from_aidl_args(desc.get('args', ''))
503*6777b538SAndroid Build Coastguard Worker    elif target.type in ['action', 'action_foreach']:
504*6777b538SAndroid Build Coastguard Worker      target.arch[arch].inputs.update(desc.get('inputs', []))
505*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(desc.get('sources', []))
506*6777b538SAndroid Build Coastguard Worker      outs = [re.sub('^//out/.+?/gen/', '', x) for x in desc['outputs']]
507*6777b538SAndroid Build Coastguard Worker      target.arch[arch].outputs.update(outs)
508*6777b538SAndroid Build Coastguard Worker      # While the arguments might differ, an action should always use the same script for every
509*6777b538SAndroid Build Coastguard Worker      # architecture. (gen_android_bp's get_action_sanitizer actually relies on this fact.
510*6777b538SAndroid Build Coastguard Worker      target.script = desc['script']
511*6777b538SAndroid Build Coastguard Worker      target.arch[arch].args = desc['args']
512*6777b538SAndroid Build Coastguard Worker      target.arch[arch].response_file_contents = self._get_response_file_contents(desc)
513*6777b538SAndroid Build Coastguard Worker      # _get_jni_registration_deps will return the dependencies of a target if
514*6777b538SAndroid Build Coastguard Worker      # the target is of type `generate_jni_registration` otherwise it will
515*6777b538SAndroid Build Coastguard Worker      # return an empty set.
516*6777b538SAndroid Build Coastguard Worker      target.jni_registration_java_deps.update(_get_jni_registration_deps(gn_target_name, gn_desc))
517*6777b538SAndroid Build Coastguard Worker      # JNI java sources are embedded as metadata inside `jni_headers` targets.
518*6777b538SAndroid Build Coastguard Worker      # See https://source.chromium.org/chromium/chromium/src/+/main:third_party/jni_zero/jni_zero.gni;l=421;drc=78e8e27142ed3fddf04fbcd122507517a87cb9ad
519*6777b538SAndroid Build Coastguard Worker      # for more details
520*6777b538SAndroid Build Coastguard Worker      target.transitive_jni_java_sources.update(metadata.get("jni_source_files_abs", set()))
521*6777b538SAndroid Build Coastguard Worker      self.jni_java_sources.update(metadata.get("jni_source_files_abs", set()))
522*6777b538SAndroid Build Coastguard Worker    elif target.type == 'copy':
523*6777b538SAndroid Build Coastguard Worker      # TODO: copy rules are not currently implemented.
524*6777b538SAndroid Build Coastguard Worker      pass
525*6777b538SAndroid Build Coastguard Worker    elif target.type == 'group':
526*6777b538SAndroid Build Coastguard Worker      # Groups are bubbled upward without creating an equivalent GN target.
527*6777b538SAndroid Build Coastguard Worker      pass
528*6777b538SAndroid Build Coastguard Worker    elif target.type in ["rust_library", "rust_proc_macro"]:
529*6777b538SAndroid Build Coastguard Worker      target.arch[arch].sources.update(source for source in desc.get('sources', []) if not source.startswith("//out"))
530*6777b538SAndroid Build Coastguard Worker    else:
531*6777b538SAndroid Build Coastguard Worker      raise Exception(f"Encountered GN target with unknown type\nCulprit target: {gn_target_name}\ntype: {target.type}")
532*6777b538SAndroid Build Coastguard Worker
533*6777b538SAndroid Build Coastguard Worker    # Default for 'public' is //* - all headers in 'sources' are public.
534*6777b538SAndroid Build Coastguard Worker    # TODO(primiano): if a 'public' section is specified (even if empty), then
535*6777b538SAndroid Build Coastguard Worker    # the rest of 'sources' is considered inaccessible by gn. Consider
536*6777b538SAndroid Build Coastguard Worker    # emulating that, so that generated build files don't end up with overly
537*6777b538SAndroid Build Coastguard Worker    # accessible headers.
538*6777b538SAndroid Build Coastguard Worker    public_headers = [x for x in desc.get('public', []) if x != '*']
539*6777b538SAndroid Build Coastguard Worker    target.public_headers.update(public_headers)
540*6777b538SAndroid Build Coastguard Worker    target.build_file_path = _get_build_path_from_label(target_name)
541*6777b538SAndroid Build Coastguard Worker    target.arch[arch].cflags.update(desc.get('cflags', []) + desc.get('cflags_cc', []))
542*6777b538SAndroid Build Coastguard Worker    target.libs.update(desc.get('libs', []))
543*6777b538SAndroid Build Coastguard Worker    target.arch[arch].ldflags.update(desc.get('ldflags', []))
544*6777b538SAndroid Build Coastguard Worker    target.arch[arch].defines.update(desc.get('defines', []))
545*6777b538SAndroid Build Coastguard Worker    target.arch[arch].include_dirs.update(desc.get('include_dirs', []))
546*6777b538SAndroid Build Coastguard Worker    target.output_name = desc.get('output_name', None)
547*6777b538SAndroid Build Coastguard Worker    target.crate_name = desc.get("crate_name", None)
548*6777b538SAndroid Build Coastguard Worker    target.crate_root = desc.get("crate_root", None)
549*6777b538SAndroid Build Coastguard Worker    target.arch[arch].rust_flags = desc.get("rustflags", list())
550*6777b538SAndroid Build Coastguard Worker    target.arch[arch].rust_flags.extend(
551*6777b538SAndroid Build Coastguard Worker        self.build_script_outputs
552*6777b538SAndroid Build Coastguard Worker        .get(label_without_toolchain(gn_target_name), {})
553*6777b538SAndroid Build Coastguard Worker        .get(chromium_arch, list())
554*6777b538SAndroid Build Coastguard Worker    )
555*6777b538SAndroid Build Coastguard Worker    if target.type == "executable" and target.crate_root:
556*6777b538SAndroid Build Coastguard Worker      # Find a more decisive way to figure out that this is a rust executable.
557*6777b538SAndroid Build Coastguard Worker      # TODO: Add a metadata to the executable from Chromium side.
558*6777b538SAndroid Build Coastguard Worker      target.type = "rust_executable"
559*6777b538SAndroid Build Coastguard Worker    if "-frtti" in target.arch[arch].cflags:
560*6777b538SAndroid Build Coastguard Worker      target.rtti = True
561*6777b538SAndroid Build Coastguard Worker
562*6777b538SAndroid Build Coastguard Worker    for gn_dep_name in set(target.jni_registration_java_deps):
563*6777b538SAndroid Build Coastguard Worker      dep = self.parse_gn_desc(gn_desc, gn_dep_name, java_group_name, is_test_target)
564*6777b538SAndroid Build Coastguard Worker      target.transitive_jni_java_sources.update(dep.transitive_jni_java_sources)
565*6777b538SAndroid Build Coastguard Worker
566*6777b538SAndroid Build Coastguard Worker    # Recurse in dependencies.
567*6777b538SAndroid Build Coastguard Worker    for gn_dep_name in set(deps):
568*6777b538SAndroid Build Coastguard Worker      dep = self.parse_gn_desc(gn_desc, gn_dep_name, java_group_name, is_test_target)
569*6777b538SAndroid Build Coastguard Worker
570*6777b538SAndroid Build Coastguard Worker      if dep.type == 'proto_library':
571*6777b538SAndroid Build Coastguard Worker        target.proto_deps.add(dep.name)
572*6777b538SAndroid Build Coastguard Worker      elif dep.type == 'group':
573*6777b538SAndroid Build Coastguard Worker        target.update(dep, arch)  # Bubble up groups's cflags/ldflags etc.
574*6777b538SAndroid Build Coastguard Worker        target.transitive_jni_java_sources.update(dep.transitive_jni_java_sources)
575*6777b538SAndroid Build Coastguard Worker      elif dep.type in ['action', 'action_foreach', 'copy']:
576*6777b538SAndroid Build Coastguard Worker        target.arch[arch].deps.add(dep.name)
577*6777b538SAndroid Build Coastguard Worker        target.transitive_jni_java_sources.update(dep.transitive_jni_java_sources)
578*6777b538SAndroid Build Coastguard Worker      elif dep.is_linker_unit_type():
579*6777b538SAndroid Build Coastguard Worker        target.arch[arch].deps.add(dep.name)
580*6777b538SAndroid Build Coastguard Worker      elif dep.type == "rust_executable":
581*6777b538SAndroid Build Coastguard Worker        target.arch[arch].deps.add(dep.name)
582*6777b538SAndroid Build Coastguard Worker      elif dep.type == 'java_library':
583*6777b538SAndroid Build Coastguard Worker        target.deps.add(dep.name)
584*6777b538SAndroid Build Coastguard Worker        target.transitive_jni_java_sources.update(dep.transitive_jni_java_sources)
585*6777b538SAndroid Build Coastguard Worker      elif dep.type in ['rust_binary', "rust_library", "rust_proc_macro"]:
586*6777b538SAndroid Build Coastguard Worker        target.arch[arch].deps.add(dep.name)
587*6777b538SAndroid Build Coastguard Worker      if dep.type in ['static_library', 'source_set']:
588*6777b538SAndroid Build Coastguard Worker        # Bubble up static_libs and source_set. Necessary, since soong does not propagate
589*6777b538SAndroid Build Coastguard Worker        # static_libs up the build tree.
590*6777b538SAndroid Build Coastguard Worker        # Source sets are later translated to static_libraries, so it makes sense
591*6777b538SAndroid Build Coastguard Worker        # to reuse transitive_static_libs_deps.
592*6777b538SAndroid Build Coastguard Worker        target.arch[arch].transitive_static_libs_deps.add(dep.name)
593*6777b538SAndroid Build Coastguard Worker
594*6777b538SAndroid Build Coastguard Worker      if arch in dep.arch:
595*6777b538SAndroid Build Coastguard Worker        target.arch[arch].transitive_static_libs_deps.update(
596*6777b538SAndroid Build Coastguard Worker            dep.arch[arch].transitive_static_libs_deps)
597*6777b538SAndroid Build Coastguard Worker        target.arch[arch].deps.update(target.arch[arch].transitive_static_libs_deps)
598*6777b538SAndroid Build Coastguard Worker    return target
599*6777b538SAndroid Build Coastguard Worker
600*6777b538SAndroid Build Coastguard Worker  def get_proto_exports(self, proto_desc):
601*6777b538SAndroid Build Coastguard Worker    # exports in metadata will be available for source_set targets.
602*6777b538SAndroid Build Coastguard Worker    metadata = proto_desc.get('metadata', {})
603*6777b538SAndroid Build Coastguard Worker    return metadata.get('exports', [])
604*6777b538SAndroid Build Coastguard Worker
605*6777b538SAndroid Build Coastguard Worker  def get_proto_paths(self, proto_desc):
606*6777b538SAndroid Build Coastguard Worker    args = proto_desc.get('args')
607*6777b538SAndroid Build Coastguard Worker    proto_paths = set()
608*6777b538SAndroid Build Coastguard Worker    for arg in args:
609*6777b538SAndroid Build Coastguard Worker      is_match = re.match(PROTO_IMPORT_DIRS_REGEX, arg)
610*6777b538SAndroid Build Coastguard Worker      if is_match:
611*6777b538SAndroid Build Coastguard Worker        proto_paths.add(re.sub('^\.\./\.\./', '', is_match.group(1)))
612*6777b538SAndroid Build Coastguard Worker    return proto_paths
613*6777b538SAndroid Build Coastguard Worker
614*6777b538SAndroid Build Coastguard Worker
615*6777b538SAndroid Build Coastguard Worker  def get_proto_in_dir(self, proto_desc):
616*6777b538SAndroid Build Coastguard Worker    args = proto_desc.get('args')
617*6777b538SAndroid Build Coastguard Worker    return re.sub('^\.\./\.\./', '', args[args.index('--proto-in-dir') + 1])
618