211 lines
6.0 KiB
Plaintext
211 lines
6.0 KiB
Plaintext
# Copyright (c) 2013 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# =============================================================================
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# BUILD FLAGS
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# =============================================================================
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#
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# This block lists input arguments to the build, along with their default
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# values. GN requires listing them explicitly so it can validate input and have
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# a central place to manage the build flags.
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#
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# If a value is specified on the command line, it will overwrite the defaults
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# given here, otherwise the default will be injected into the root scope.
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#
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# KEEP IN ALPHABETICAL ORDER and write a good description for everything.
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# Use "is_*" names for intrinsic platform descriptions and build modes, and
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# "use_*" names for optional features libraries, and configurations.
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declare_args() {
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is_android = 0
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is_component_build = 1
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is_chromeos = 0
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is_debug = 1
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is_ios = 0
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use_ash = 0
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use_aura = 0
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use_ozone = 0
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}
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# =============================================================================
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# SOURCES FILTERS
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# =============================================================================
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#
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# These patterns filter out platform-specific files when assigning to the
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# sources variable. The magic variable |sources_assignment_filter| is applied
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# to each assignment or appending to the sources variable and matches are
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# automatcally removed.
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#
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# We define lists of filters for each platform for all builds so they can
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# be used by individual targets if necessary (a target can always change
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# sources_assignment_filter on itself if it needs something more specific).
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#
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# Note that the patterns are NOT regular expressions. Only "*" and "\b" (path
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# boundary = end of string or slash) are supported, and the entire string
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# muct match the pattern (so you need "*.cc" to match all .cc files, for
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# example).
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windows_sources_filters = [
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"*_win.cc",
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"*_win.h",
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"*_win_unittest.cc",
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"*\bwin/*",
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]
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mac_sources_filters = [
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"*_mac.h",
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"*_mac.cc",
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"*_mac.mm",
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"*_mac_unittest.h",
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"*_mac_unittest.cc",
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"*_mac_unittest.mm",
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"*\bmac/*",
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"*_cocoa.h",
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"*_cocoa.cc",
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"*_cocoa.mm",
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"*_cocoa_unittest.h",
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"*_cocoa_unittest.cc",
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"*_cocoa_unittest.mm",
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"*\bcocoa/*",
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]
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ios_sources_filters = [
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"*_ios.h",
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"*_ios.cc",
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"*_ios.mm",
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"*_ios_unittest.h",
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"*_ios_unittest.cc",
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"*_ios_unittest.mm",
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"*\bios/*",
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]
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objective_c_sources_filters = [
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"*.mm",
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]
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linux_sources_filters = [
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"*_linux.h",
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"*_linux.cc",
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"*_linux_unittest.h",
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"*_linux_unittest.cc",
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"*\blinux/*",
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]
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android_sources_filters = [
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"*_android.h",
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"*_android.cc",
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"*_android_unittest.h",
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"*_android_unittest.cc",
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"*\bandroid/*",
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]
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posix_sources_filters = [
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"*_posix.h",
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"*_posix.cc",
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"*_posix_unittest.h",
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"*_posix_unittest.cc",
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"*\bposix/*",
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]
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# Construct the full list of sources we're using for this platform.
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sources_assignment_filter = []
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if (is_win) {
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sources_assignment_filter += posix_sources_filters
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} else {
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sources_assignment_filter += windows_sources_filters
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}
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if (!is_mac) {
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sources_assignment_filter += mac_sources_filters
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}
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if (!is_ios) {
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sources_assignment_filter += ios_sources_filters
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}
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if (!is_mac && !is_ios) {
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sources_assignment_filter += objective_c_sources_filters
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}
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if (!is_linux) {
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sources_assignment_filter += linux_sources_filters
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}
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if (!is_android) {
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sources_assignment_filter += android_sources_filters
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}
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# This is the actual set.
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set_sources_assignment_filter(sources_assignment_filter)
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# =============================================================================
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# SYSTEM CONFIG
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# =============================================================================
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is_nacl = 0
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# =============================================================================
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# BUILD OPTIONS
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# =============================================================================
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if (is_component_build) {
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component_mode = "shared_library"
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} else {
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component_mode = "static_library"
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}
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# =============================================================================
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# TARGET DEFAULTS
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# =============================================================================
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#
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# Set up the default configuration for every build target of the given type.
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# The values configured here will be automatically set on the scope of the
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# corresponding target. Target definitions can add or remove to the settings
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# here as needed.
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# Holds all configs used for making native executables and libraries, to avoid
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# duplication in each target below.
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native_compiler_configs = [
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"//build/config:my_msvs", # TODO(brettw) eraseme
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"//build/config/compiler:compiler",
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"//build/config/compiler:chromium_code",
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"//build/config/compiler:default_warnings",
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"//build/config/compiler:no_rtti",
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"//build/config/compiler:runtime_library",
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]
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if (is_win) {
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native_compiler_configs += "//build/config/win:sdk"
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} else if (is_mac) {
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# TODO(brettw) this should be in an if (is_clang) block instead but I haven't
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# written an is_clang flag yet.
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native_compiler_configs += "//build/config/clang:find_bad_constructs"
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}
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if (is_debug) {
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native_compiler_configs += "//build/config:debug"
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} else {
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native_compiler_configs += "//build/config:release"
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}
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set_defaults("executable") {
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configs = native_compiler_configs
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if (is_mac) {
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configs += "//build/config/mac:mac_dynamic_flags"
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} else if (is_linux) {
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configs += "//build/config/linux:executable_ldconfig"
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}
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}
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set_defaults("static_library") {
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configs = native_compiler_configs
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}
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set_defaults("shared_library") {
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configs = native_compiler_configs
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if (is_mac) {
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configs += "//build/config/mac:mac_dynamic_flags"
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}
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}
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# ==============================================================================
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# TOOLCHAIN SETUP
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# ==============================================================================
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if (is_win) {
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set_default_toolchain("//build/config/win:32")
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} else if (is_linux) {
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set_default_toolchain("//build/config/linux/toolchain:gcc")
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} else if (is_mac) {
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set_default_toolchain("//build/config/mac:clang")
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}
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