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121 lines
3.2 KiB
121 lines
3.2 KiB
# Copyright (C) 2017 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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declare_args() {
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is_debug = true
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is_clang = true
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is_system_compiler = false
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is_lto = false
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# This is defined here because it's needed below for determining the value of
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# |is_cross_compiling|.
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target_triplet = ""
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}
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# Platform detection
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if (target_os == "") {
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target_os = host_os
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}
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if (current_os == "") {
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current_os = target_os
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}
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is_android = current_os == "android"
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is_chromeos = current_os == "chromeos"
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is_linux = current_os == "linux"
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is_linux_host = host_os == "linux"
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is_mac = current_os == "mac"
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is_mac_host = host_os == "mac"
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is_win = current_os == "win"
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is_win_host = host_os == "win"
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# Building with Windows/Fuchsia/nacl is currently only supported in the Chromium
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# tree so always set this to false.
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is_fuchsia = false
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is_nacl = false
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if (target_cpu == "") {
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target_cpu = host_cpu
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if (is_android) {
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target_cpu = "arm"
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}
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}
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if (current_cpu == "") {
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current_cpu = target_cpu
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}
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is_cross_compiling =
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target_cpu != host_cpu || target_os != host_os || target_triplet != ""
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default_configs = [
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"//gn/standalone:debug_symbols",
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"//gn/standalone:default",
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"//gn/standalone:c++11",
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"//gn/standalone:extra_warnings",
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"//gn/standalone:no_exceptions",
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"//gn/standalone:no_rtti",
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"//gn/standalone:visibility_hidden",
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"//gn/standalone/libc++:config",
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"//gn/standalone/sanitizers:sanitizers_cflags",
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]
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if (is_win) {
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default_configs += [ "//gn/standalone:win32_lean_and_mean" ]
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}
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if (!is_debug) {
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default_configs -= [ "//gn/standalone:debug_symbols" ]
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default_configs += [ "//gn/standalone:release" ]
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}
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set_defaults("source_set") {
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configs = default_configs
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}
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set_defaults("static_library") {
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configs = default_configs
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}
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# Realistically the only shared_library that we build right now is libc++.so
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# when use_custom_libcxx=true (on Linux). Hence don't add a dependency on
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# libc++ itself on these targets.
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set_defaults("shared_library") {
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configs = default_configs
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configs += [ "//gn/standalone:shared_library" ]
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# note: the following is not a nested config to be removable.
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configs += [ "//gn/standalone:android_liblog" ]
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}
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set_defaults("executable") {
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configs = default_configs
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configs += [ "//gn/standalone:executable" ]
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# note: the following is not a nested config to be removable.
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configs += [ "//gn/standalone:android_liblog" ]
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}
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if (is_win) {
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_default_toolchain = "//gn/standalone/toolchain:msvc"
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} else {
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_default_toolchain = "//gn/standalone/toolchain:gcc_like"
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}
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set_default_toolchain(_default_toolchain)
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if (is_cross_compiling) {
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host_toolchain = "//gn/standalone/toolchain:gcc_like_host"
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} else {
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host_toolchain = _default_toolchain
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}
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