mirror of https://github.com/bazelbuild/rules_cc
74 lines
2.1 KiB
Python
74 lines
2.1 KiB
Python
# Copyright 2024 The Bazel Authors. All rights reserved.
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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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"""All providers for rule-based bazel toolchain config."""
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load(
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"//cc/toolchains/impl:collect.bzl",
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"collect_args_lists",
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)
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load(":cc_toolchain_info.bzl", "ArgsListInfo")
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def _cc_args_list_impl(ctx):
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return [collect_args_lists(ctx.attr.args, ctx.label)]
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cc_args_list = rule(
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implementation = _cc_args_list_impl,
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doc = """An ordered list of cc_args.
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This is a convenience rule to allow you to group a set of multiple `cc_args` into a
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single list. This particularly useful for toolchain behaviors that require different flags for
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different actions.
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Note: The order of the arguments in `args` is preserved to support order-sensitive flags.
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Example usage:
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```
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load("//cc/toolchains:cc_args.bzl", "cc_args")
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load("//cc/toolchains:args_list.bzl", "cc_args_list")
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cc_args(
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name = "gc_sections",
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actions = [
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"//cc/toolchains/actions:link_actions",
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],
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args = ["-Wl,--gc-sections"],
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)
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cc_args(
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name = "function_sections",
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actions = [
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"//cc/toolchains/actions:compile_actions",
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"//cc/toolchains/actions:link_actions",
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],
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args = ["-ffunction-sections"],
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)
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cc_args_list(
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name = "gc_functions",
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args = [
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":function_sections",
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":gc_sections",
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],
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)
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```
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""",
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attrs = {
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"args": attr.label_list(
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providers = [ArgsListInfo],
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doc = "(ordered) cc_args to include in this list.",
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),
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},
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provides = [ArgsListInfo],
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)
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