71 lines
2.3 KiB
Plaintext
71 lines
2.3 KiB
Plaintext
# Copyright 2020 The Pigweed Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may not
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# use this file except in compliance with the License. You may obtain a copy of
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# the License at
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#
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# https://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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations under
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# the License.
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import("//build_overrides/pigweed.gni")
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declare_args() {
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# Default configs and dependencies targets provided by the toolchain. These
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# are applied to all of the pw_* target types. They are set from a toolchain's
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# toolchain_args for cross-toolchain deps, e.g. for
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#
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# `deps = [ //pw_some_module(//pw_toolchain:not_default) ]`
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#
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# The default toolchain is never used.
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default_configs = []
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default_public_deps = []
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remove_default_configs = []
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# Controls the default visibility of C/C++ libraries and executables
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# (pw_source_set, pw_static_library, pw_shared_library pw_executable). This
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# can be "*" or a list of paths.
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#
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# This is useful for limiting usage of Pigweed modules via an explicit
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# allowlist. For the GN build to work, pw_build_DEFAULT_VISIBILITY must always
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# at least include the Pigweed repository ("$dir_pigweed/*").
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#
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# Explicitly setting a target's visibility overrides this default.
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pw_build_DEFAULT_VISIBILITY = "*"
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}
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# Combine target-specifc and target-agnostic default variables.
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_pw_build_defaults = {
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configs = default_configs
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public_deps = default_public_deps
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# The target-agnostic defaults.
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configs += [
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"$dir_pw_build:colorize_output",
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"$dir_pw_build:debugging",
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"$dir_pw_build:reduced_size",
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"$dir_pw_build:strict_warnings",
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"$dir_pw_build:toolchain_cpp_standard",
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"$dir_pw_build:relative_paths",
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]
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if (pw_build_DEFAULT_VISIBILITY != "*") {
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visibility = pw_build_DEFAULT_VISIBILITY
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}
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}
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# One more pass, to remove configs
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pw_build_defaults = {
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configs = []
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forward_variables_from(_pw_build_defaults, "*")
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if (remove_default_configs != []) {
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# Add them first to ensure they are present to be removed.
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configs += remove_default_configs
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configs -= remove_default_configs
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}
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}
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