mirror of
https://github.com/bazelbuild/rules_cc
synced 2024-11-25 17:31:30 +00:00
94 lines
3.5 KiB
Python
94 lines
3.5 KiB
Python
# Copyright 2019 The Bazel Authors. All rights reserved.
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
"""Example showing how to create a rule that rules_cc can depend on."""
|
|
|
|
load("@bazel_tools//tools/cpp:toolchain_utils.bzl", "find_cpp_toolchain")
|
|
load("@bazel_tools//tools/build_defs/cc:action_names.bzl", "CPP_LINK_STATIC_LIBRARY_ACTION_NAME")
|
|
load("//examples/my_c_compile:my_c_compile.bzl", "MyCCompileInfo")
|
|
|
|
def _my_c_archive_impl(ctx):
|
|
cc_toolchain = find_cpp_toolchain(ctx)
|
|
object_file = ctx.attr.object[MyCCompileInfo].object
|
|
output_file = ctx.actions.declare_file(ctx.label.name + ".a")
|
|
|
|
feature_configuration = cc_common.configure_features(
|
|
cc_toolchain = cc_toolchain,
|
|
requested_features = ctx.features,
|
|
unsupported_features = ctx.disabled_features,
|
|
)
|
|
|
|
library_to_link = cc_common.create_library_to_link(
|
|
actions = ctx.actions,
|
|
feature_configuration = feature_configuration,
|
|
cc_toolchain = cc_toolchain,
|
|
static_library = output_file,
|
|
)
|
|
compilation_context = cc_common.create_compilation_context()
|
|
linking_context = cc_common.create_linking_context(libraries_to_link = [library_to_link])
|
|
|
|
archiver_path = cc_common.get_tool_for_action(
|
|
feature_configuration = feature_configuration,
|
|
action_name = CPP_LINK_STATIC_LIBRARY_ACTION_NAME,
|
|
)
|
|
archiver_variables = cc_common.create_link_variables(
|
|
feature_configuration = feature_configuration,
|
|
cc_toolchain = cc_toolchain,
|
|
output_file = output_file.path,
|
|
is_using_linker = False,
|
|
)
|
|
command_line = cc_common.get_memory_inefficient_command_line(
|
|
feature_configuration = feature_configuration,
|
|
action_name = CPP_LINK_STATIC_LIBRARY_ACTION_NAME,
|
|
variables = archiver_variables,
|
|
)
|
|
args = ctx.actions.args()
|
|
args.add_all(command_line)
|
|
args.add(object_file)
|
|
|
|
env = cc_common.get_environment_variables(
|
|
feature_configuration = feature_configuration,
|
|
action_name = CPP_LINK_STATIC_LIBRARY_ACTION_NAME,
|
|
variables = archiver_variables,
|
|
)
|
|
|
|
ctx.actions.run(
|
|
executable = archiver_path,
|
|
arguments = [args],
|
|
env = env,
|
|
inputs = depset(
|
|
direct = [object_file],
|
|
transitive = [
|
|
# TODO: Use CcToolchainInfo getters when available
|
|
# See https://github.com/bazelbuild/bazel/issues/7427.
|
|
ctx.attr._cc_toolchain.files,
|
|
],
|
|
),
|
|
outputs = [output_file],
|
|
)
|
|
|
|
cc_info = cc_common.merge_cc_infos(cc_infos = [
|
|
CcInfo(compilation_context = compilation_context, linking_context = linking_context),
|
|
] + [dep[CcInfo] for dep in ctx.attr.deps])
|
|
return [cc_info]
|
|
|
|
my_c_archive = rule(
|
|
implementation = _my_c_archive_impl,
|
|
attrs = {
|
|
"object": attr.label(mandatory = True, providers = [MyCCompileInfo]),
|
|
"deps": attr.label_list(providers = [CcInfo]),
|
|
"_cc_toolchain": attr.label(default = Label("@bazel_tools//tools/cpp:current_cc_toolchain")),
|
|
},
|
|
)
|