1# Copyright (C) 2019 The Android Open Source Project 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://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, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14 15import("perfetto.gni") 16 17# A template to make host tools handier. The main problem it solves is that when 18# building host toolchain tools on an Android build, the executables end up in 19# out/xxx/gcc_like_host, which is an inconvenient location. Our developers 20# (and also some of our scripts) expect them to live in out/xxx/. 21# This template takes care takes care of building the target only on the host 22# toolchain and copy it over in the root build directory. 23template("perfetto_host_executable") { 24 if (current_toolchain == host_toolchain) { 25 executable(target_name) { 26 if (defined(invoker.configs)) { 27 configs += invoker.configs 28 } 29 forward_variables_from(invoker, "*", [ "configs" ]) 30 } 31 } else { 32 not_needed(invoker, "*", [ "testonly" ]) 33 _host_target = ":$target_name($host_toolchain)" 34 _testonly = defined(invoker.testonly) && invoker.testonly 35 if ((perfetto_build_with_embedder && !build_with_chromium) || 36 is_perfetto_build_generator) { 37 # Don't copy anything in V8 and other GN embedder builds, just add a 38 # dependency to the host target. This causes problems on some bots. 39 # (See crbug.com/1002599). 40 group(target_name) { 41 testonly = _testonly 42 deps = [ _host_target ] 43 } 44 } else { 45 copy(target_name) { 46 testonly = _testonly 47 deps = [ _host_target ] 48 _host_out_dir = get_label_info(_host_target, "root_out_dir") 49 _extension = "" 50 if (host_os == "win") { 51 _extension = ".exe" 52 } 53 sources = [ "$_host_out_dir/$target_name${_extension}" ] 54 outputs = [ "$root_out_dir/$target_name${_extension}" ] 55 } 56 } 57 } 58} 59