You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
2.2 KiB
52 lines
2.2 KiB
# Copyright 2021 The Pigweed Authors
|
|
#
|
|
# 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
|
|
#
|
|
# https://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.
|
|
|
|
# Declares a group that builds a list of dependencies using multiple toolchains.
|
|
#
|
|
# In a multi-toolchain group, each dependency is built with each of the provided
|
|
# toolchains. This results in M x N targets being built, where M is the number
|
|
# of toolchains, and N is the number of targets listed in the `deps` variable.
|
|
#
|
|
# This template is useful for simplifying cases where you have multiple
|
|
# applications you would like to build under different toolchain contexts.
|
|
#
|
|
# Args:
|
|
# deps: (required) List of GN targets to build under each listed toolchain.
|
|
# toolchains: (required) A list of toolchain labels to build the dependencies
|
|
# with.
|
|
template("pw_multi_toolchain_group") {
|
|
assert(!defined(invoker.public_deps),
|
|
"Use `deps` for pw_multi_toolchain_group targets")
|
|
assert(defined(invoker.deps), "`deps` must be defined to use this template")
|
|
assert(defined(invoker.toolchains),
|
|
"`toolchains` must be defined to use this template")
|
|
group(target_name) {
|
|
deps = []
|
|
public_deps = []
|
|
foreach(tc, invoker.toolchains) {
|
|
foreach(item, invoker.deps) {
|
|
# Make sure targets don't explicitly reference a toolchain in their
|
|
# target label. If we poison any instances of "(", we can see a mismatch
|
|
# against the original string, indicating a toolchain was explicitly
|
|
# specified.
|
|
_poisioned_label = string_replace(item, "(", "!")
|
|
assert(item == _poisioned_label,
|
|
"$item can't explicitly specify a toolchain as part of " +
|
|
"a multi-toolchain group")
|
|
deps += [ "$item($tc)" ]
|
|
}
|
|
}
|
|
}
|
|
}
|