248 lines
7.4 KiB
Python
248 lines
7.4 KiB
Python
# Copyright (C) 2023 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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load("@bazel_skylib//lib:unittest.bzl", "analysistest", "asserts")
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load("//build/bazel/rules/cc:cc_binary.bzl", "cc_binary")
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load("//build/bazel/rules/cc:cc_library_shared.bzl", "cc_library_shared")
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load("//build/bazel/rules/cc:cc_library_static.bzl", "cc_library_static")
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load(
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"//build/bazel/rules/cc/testing:transitions.bzl",
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"ActionArgsInfo",
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"compile_action_argv_aspect_generator",
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)
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lto_flag = "-flto=thin"
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static_cpp_suffix = "_cpp"
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shared_cpp_suffix = "__internal_root_cpp"
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binary_suffix = "__internal_root"
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def _lto_deps_test_impl(ctx):
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env = analysistest.begin(ctx)
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target_under_test = analysistest.target_under_test(env)
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argv_map = target_under_test[ActionArgsInfo].argv_map
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for target in ctx.attr.targets_with_lto:
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asserts.true(
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env,
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target in argv_map,
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"can't find {} in argv map".format(target),
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)
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if target in argv_map:
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argv = argv_map[target]
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asserts.true(
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env,
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lto_flag in argv,
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"Compile action of {} didn't have LTO but it was expected".format(
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target,
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),
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)
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for target in ctx.attr.targets_without_lto:
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asserts.true(
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env,
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target in argv_map,
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"can't find {} in argv map".format(target),
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)
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if target in argv_map:
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argv = argv_map[target]
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asserts.true(
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env,
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lto_flag not in argv,
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"Compile action of {} had LTO but it wasn't expected".format(
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target,
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),
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)
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return analysistest.end(env)
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_compile_action_argv_aspect = compile_action_argv_aspect_generator({
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"_cc_library_combiner": ["deps", "roots", "includes"],
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"_cc_includes": ["deps"],
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"_cc_library_shared_proxy": ["deps"],
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"stripped_binary": ["androidmk_deps"],
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})
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lto_deps_test = analysistest.make(
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_lto_deps_test_impl,
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attrs = {
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"targets_with_lto": attr.string_list(),
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"targets_without_lto": attr.string_list(),
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},
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# We need to use aspect to examine the dependencies' actions of the apex
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# target as the result of the transition, checking the dependencies directly
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# using names will give you the info before the transition takes effect.
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extra_target_under_test_aspects = [_compile_action_argv_aspect],
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)
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def _test_static_deps_have_lto():
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name = "static_deps_have_lto"
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requested_target_name = name + "_requested_target"
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static_dep_name = name + "_static_dep"
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static_dep_of_static_dep_name = "_static_dep_of_static_dep"
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test_name = name + "_test"
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cc_library_static(
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name = requested_target_name,
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srcs = ["foo.cpp"],
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deps = [static_dep_name],
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features = ["android_thin_lto"],
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tags = ["manual"],
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)
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cc_library_static(
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name = static_dep_name,
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srcs = ["bar.cpp"],
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deps = [static_dep_of_static_dep_name],
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tags = ["manual"],
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)
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cc_library_static(
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name = static_dep_of_static_dep_name,
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srcs = ["baz.cpp"],
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tags = ["manual"],
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)
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lto_deps_test(
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name = test_name,
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target_under_test = requested_target_name,
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targets_with_lto = [
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requested_target_name + static_cpp_suffix,
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static_dep_name + static_cpp_suffix,
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static_dep_of_static_dep_name + static_cpp_suffix,
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],
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targets_without_lto = [],
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)
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return test_name
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def _test_deps_of_shared_have_lto_if_enabled():
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name = "deps_of_shared_have_lto_if_enabled"
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requested_target_name = name + "_requested_target"
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shared_dep_name = name + "_shared_dep"
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static_dep_of_shared_dep_name = name + "_static_dep_of_shared_dep"
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test_name = name + "_test"
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cc_library_static(
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name = requested_target_name,
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srcs = ["foo.cpp"],
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dynamic_deps = [shared_dep_name],
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tags = ["manual"],
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)
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cc_library_shared(
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name = shared_dep_name,
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srcs = ["bar.cpp"],
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deps = [static_dep_of_shared_dep_name],
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features = ["android_thin_lto"],
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tags = ["manual"],
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)
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cc_library_static(
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name = static_dep_of_shared_dep_name,
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srcs = ["baz.cpp"],
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tags = ["manual"],
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)
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lto_deps_test(
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name = test_name,
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target_under_test = requested_target_name,
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targets_with_lto = [
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shared_dep_name + "__internal_root_cpp",
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static_dep_of_shared_dep_name + static_cpp_suffix,
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],
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targets_without_lto = [requested_target_name + static_cpp_suffix],
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)
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return test_name
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def _test_deps_of_shared_deps_no_lto_if_disabled():
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name = "deps_of_shared_deps_no_lto_if_disabled"
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requested_target_name = name + "_requested_target"
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shared_dep_name = name + "_shared_dep"
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static_dep_of_shared_dep_name = name + "_static_dep_of_shared_dep"
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test_name = name + "_test"
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cc_library_static(
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name = requested_target_name,
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srcs = ["foo.cpp"],
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dynamic_deps = [shared_dep_name],
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features = ["android_thin_lto"],
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tags = ["manual"],
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)
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cc_library_shared(
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name = shared_dep_name,
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srcs = ["bar.cpp"],
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deps = [static_dep_of_shared_dep_name],
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tags = ["manual"],
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)
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cc_library_static(
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name = static_dep_of_shared_dep_name,
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srcs = ["baz.cpp"],
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tags = ["manual"],
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)
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lto_deps_test(
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name = test_name,
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target_under_test = requested_target_name,
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targets_with_lto = [requested_target_name + static_cpp_suffix],
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targets_without_lto = [
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shared_dep_name + shared_cpp_suffix,
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static_dep_of_shared_dep_name + static_cpp_suffix,
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],
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)
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return test_name
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def _test_binary_propagates_to_static_deps():
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name = "binary_propagates_to_static_deps"
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requested_target_name = name + "_requested_target"
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dep_name = name + "_dep"
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test_name = name + "_test"
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cc_binary(
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name = requested_target_name,
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srcs = ["foo.cpp"],
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deps = [dep_name],
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features = ["android_thin_lto"],
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tags = ["manual"],
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)
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cc_library_static(
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name = dep_name,
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srcs = ["bar.cpp"],
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tags = ["manual"],
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)
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lto_deps_test(
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name = test_name,
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target_under_test = requested_target_name,
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targets_with_lto = [
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requested_target_name + binary_suffix + static_cpp_suffix,
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dep_name + static_cpp_suffix,
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],
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)
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return test_name
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def lto_transition_test_suite(name):
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native.test_suite(
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name = name,
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tests = [
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_test_static_deps_have_lto(),
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_test_deps_of_shared_have_lto_if_enabled(),
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_test_deps_of_shared_deps_no_lto_if_disabled(),
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_test_binary_propagates_to_static_deps(),
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],
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)
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