blob: 47de741cab8e536f3dfefefff6564cf788a2781a [file] [log] [blame]
# Copyright 2017 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
# Targets in ths file are to take a V8 context snapshot on build time.
# Created V8 context snapshot is used in
# third_party/WebKit/Source/bindings/core/v8/V8ContextSnapshot.{cpp|h}.
# to speedup creating a V8 context and setting up around it.
import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
import("//build/config/c++/c++.gni")
import("//build/config/compiler/compiler.gni")
import("//v8/snapshot_toolchain.gni")
if (is_android) {
import("//build/config/android/rules.gni")
}
if (is_android) {
android_assets("v8_context_snapshot_assets") {
deps = [
":v8_context_snapshot",
]
sources = [
"$root_out_dir/v8_context_snapshot.bin",
]
disable_compression = true
}
}
group("v8_context_snapshot") {
if (use_v8_context_snapshot) {
public_deps = [
":generate_v8_context_snapshot",
]
}
}
config("use_v8_context_snapshot") {
if (use_v8_context_snapshot) {
defines = [ "USE_V8_CONTEXT_SNAPSHOT" ]
}
}
if (use_v8_context_snapshot) {
action("generate_v8_context_snapshot") {
script = "//build/gn_run_binary.py"
output_file = "$root_out_dir/v8_context_snapshot.bin"
output_path = rebase_path(output_file, root_build_dir)
args = [
"./" + rebase_path(
get_label_info(
":v8_context_snapshot_generator($v8_snapshot_toolchain)",
"root_out_dir") + "/v8_context_snapshot_generator",
root_build_dir),
"--output_file=$output_path",
]
outputs = [
output_file,
]
deps = [
":v8_context_snapshot_generator($v8_snapshot_toolchain)",
]
}
# This config disables a link time optimization "ICF", which may merge different
# functions into one if the function signature and body of them are identical.
#
# ICF breaks 1:1 mappings of the external references for V8 snapshot, so we
# disable it while taking a V8 snapshot.
config("disable_icf") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
if (is_win) {
ldflags = [ "/OPT:NOICF" ] # link.exe, but also lld-link.exe.
} else if (use_gold || use_lld) {
ldflags = [ "-Wl,--icf=none" ]
}
}
executable("v8_context_snapshot_generator") {
sources = [
"v8_context_snapshot_generator.cc",
]
deps = [
"//gin:gin",
"//mojo/edk/system:system",
"//services/service_manager/public/cpp",
"//third_party/WebKit/public:blink",
"//v8",
]
if (is_linux && (is_component_build || using_sanitizer) &&
use_custom_libcxx) {
deps += [ "//buildtools/third_party/libc++:libc++" ]
}
configs += [
"//v8:external_startup_data",
":disable_icf",
]
}
}