1# Copyright 2024 The Pigweed Authors 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); you may not 4# use this file except in compliance with the License. You may obtain a copy of 5# the License at 6# 7# https://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 11# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 12# License for the specific language governing permissions and limitations under 13# the License. 14 15import("//build_overrides/pigweed.gni") 16 17import("$dir_pw_build/gn_internal/build_target.gni") 18 19# Note: In general, prefer to import target_types.gni rather than this file. 20# 21# This template wraps a configurable target type specified by the current 22# toolchain to be used for all pw_rust_static_library targets. A wrapper for 23# GN's built-in rust_static_library target, it is analogous to 24# pw_static_library with additions to support rust specific parameters such 25# as rust edition and cargo config features. 26# 27# For more information on the features provided by this template, see the full 28# docs at https://pigweed.dev/pw_build/?highlight=pw_rust_static_library 29template("pw_rust_static_library") { 30 pw_internal_build_target(target_name) { 31 forward_variables_from(invoker, "*") 32 33 if (!defined(crate_name)) { 34 crate_name = target_name 35 } 36 37 _edition = "2021" 38 if (defined(edition)) { 39 _edition = edition 40 } 41 assert(_edition == "2015" || _edition == "2018" || _edition == "2021", 42 "edition ${_edition} is not supported") 43 44 if (!defined(configs)) { 45 configs = [] 46 } 47 configs += [ "$dir_pw_build:rust_edition_${_edition}" ] 48 49 if (!defined(rustflags)) { 50 rustflags = [] 51 } 52 53 if (defined(features)) { 54 foreach(i, features) { 55 rustflags += [ "--cfg=feature=\"${i}\"" ] 56 } 57 } 58 59 if (!defined(underlying_target_type)) { 60 underlying_target_type = "static_library" 61 } 62 63 crate_name = string_replace(crate_name, "-", "_") 64 output_dir = "${target_out_dir}/lib" 65 add_global_link_deps = false 66 libs = [ "${crate_name}" ] 67 } 68} 69