| # Copyright (c) 2020 Project CHIP 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 | 
 | # | 
 | # 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. | 
 |  | 
 | import("//build_overrides/pigweed.gni") | 
 | import("$dir_pw_toolchain/generate_toolchain.gni") | 
 |  | 
 | declare_args() { | 
 |   # Generate Linker map files. By default it is disabled since they can | 
 |   # be quite large. | 
 |   chip_generate_link_map_file = false | 
 | } | 
 |  | 
 | template("gcc_toolchain") { | 
 |   invoker_toolchain_args = invoker.toolchain_args | 
 |  | 
 |   _toolchain = { | 
 |     name = target_name | 
 |  | 
 |     ar = "ar" | 
 |     if (invoker_toolchain_args.is_clang) { | 
 |       cc = "clang" | 
 |       cxx = "clang++" | 
 |     } else { | 
 |       cc = "gcc" | 
 |       cxx = "g++" | 
 |     } | 
 |  | 
 |     if (defined(invoker.ar)) { | 
 |       ar = invoker.ar | 
 |     } | 
 |     if (defined(invoker.cc)) { | 
 |       cc = invoker.cc | 
 |     } | 
 |     if (defined(invoker.cxx)) { | 
 |       cxx = invoker.cxx | 
 |     } | 
 |  | 
 |     link_generate_map_file = chip_generate_link_map_file | 
 |  | 
 |     is_host_toolchain = invoker_toolchain_args.current_os == host_os | 
 |     link_group = invoker_toolchain_args.current_os != "mac" && | 
 |                  invoker_toolchain_args.current_os != "ios" | 
 |  | 
 |     defaults = { | 
 |       forward_variables_from(invoker_toolchain_args, "*") | 
 |     } | 
 |   } | 
 |  | 
 |   generate_toolchains("gcc_toolchains") { | 
 |     toolchains = [ _toolchain ] | 
 |   } | 
 | } |