365e32b130
The GN configs for different optimization levels are confusing and should probably be reworked, but for now we add a special config specifically so that we can compile with -O3 when appropriate. R=brettw@chromium.org, machenbach@chromium.org BUG=616031, 618678, 621335 Review-Url: https://codereview.chromium.org/2076403002 Cr-Commit-Position: refs/heads/master@{#37158}
80 lines
2.4 KiB
Plaintext
80 lines
2.4 KiB
Plaintext
# Copyright 2016 the V8 project 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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import("//build/config/v8_target_cpu.gni")
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import("//build/config/sanitizers/sanitizers.gni")
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declare_args() {
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# Turns on compiler optimizations in V8 in Debug build.
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v8_optimized_debug = true
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# Enable the snapshot feature, for fast context creation.
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# http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html
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v8_use_snapshot = true
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# Use external files for startup data blobs:
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# the JS builtins sources and the start snapshot.
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v8_use_external_startup_data = !is_ios
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}
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###############################################################################
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# Templates
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#
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# Points to // in v8 stand-alone or to //v8/ in chromium. We need absolute
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# paths for all configs in templates as they are shared in different
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# subdirectories.
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path_prefix = get_path_info("../", "abspath")
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# Common configs to remove or add in all v8 targets.
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remove_configs = [ "//build/config/compiler:chromium_code" ]
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add_configs = [
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"//build/config/compiler:no_chromium_code",
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path_prefix + ":features",
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path_prefix + ":toolchain",
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]
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if (is_debug && !v8_optimized_debug) {
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remove_configs += [ "//build/config/compiler:default_optimization" ]
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add_configs += [ "//build/config/compiler:no_optimize" ]
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} else {
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remove_configs += [ "//build/config/compiler:default_optimization" ]
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# TODO(crbug.com/621335) Rework this so that we don't have the confusion
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# between "optimize_speed" and "optimize_max".
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if (is_posix && !is_android && !is_nacl && !using_sanitizer) {
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add_configs += [ "//build/config/compiler:optimize_speed" ]
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} else {
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add_configs += [ "//build/config/compiler:optimize_max" ]
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}
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}
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# All templates should be kept in sync.
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template("v8_source_set") {
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source_set(target_name) {
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forward_variables_from(invoker, "*", [ "configs" ])
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configs += invoker.configs
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configs -= remove_configs
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configs += add_configs
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}
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}
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template("v8_executable") {
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executable(target_name) {
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forward_variables_from(invoker, "*", [ "configs" ])
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configs += invoker.configs
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configs -= remove_configs
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configs += add_configs
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}
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}
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template("v8_component") {
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component(target_name) {
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forward_variables_from(invoker, "*", [ "configs" ])
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configs += invoker.configs
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configs -= remove_configs
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configs += add_configs
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}
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}
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