mirror of
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120 lines
3.3 KiB
Plaintext
120 lines
3.3 KiB
Plaintext
# Copyright 2017 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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# Targets in ths file are to take a V8 context snapshot on build time.
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# Created V8 context snapshot is used in
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# third_party/WebKit/Source/bindings/core/v8/V8ContextSnapshot.{cpp|h}.
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# to speedup creating a V8 context and setting up around it.
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import("//tools/v8_context_snapshot/v8_context_snapshot.gni")
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import("//build/config/c++/c++.gni")
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import("//build/config/compiler/compiler.gni")
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import("//v8/snapshot_toolchain.gni")
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if (is_android) {
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import("//build/config/android/rules.gni")
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}
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group("v8_context_snapshot") {
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if (use_v8_context_snapshot) {
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public_deps = [
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":generate_v8_context_snapshot",
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]
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if (!is_android) {
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data = [
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"$root_out_dir/v8_context_snapshot.bin",
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]
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}
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}
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}
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config("use_v8_context_snapshot") {
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if (use_v8_context_snapshot) {
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defines = [ "USE_V8_CONTEXT_SNAPSHOT" ]
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}
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}
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if (use_v8_context_snapshot) {
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if (is_android && enable_java_templates) {
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android_assets("v8_context_snapshot_assets") {
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deps = [
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":v8_context_snapshot",
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]
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sources = [
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"$root_out_dir/natives_blob.bin",
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]
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renaming_sources = [ "$root_out_dir/v8_context_snapshot.bin" ]
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if (current_cpu == "arm" || current_cpu == "x86" ||
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current_cpu == "mipsel") {
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renaming_destinations = [ "v8_context_snapshot_32.bin" ]
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} else {
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renaming_destinations = [ "v8_context_snapshot_64.bin" ]
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}
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disable_compression = true
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}
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}
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action("generate_v8_context_snapshot") {
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script = "//build/gn_run_binary.py"
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output_file = "$root_out_dir/v8_context_snapshot.bin"
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output_path = rebase_path(output_file, root_build_dir)
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args = [
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"./" + rebase_path(
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get_label_info(
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":v8_context_snapshot_generator($v8_snapshot_toolchain)",
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"root_out_dir") + "/v8_context_snapshot_generator",
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root_build_dir),
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"--output_file=$output_path",
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]
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outputs = [
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output_file,
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]
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deps = [
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":v8_context_snapshot_generator($v8_snapshot_toolchain)",
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]
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}
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# This config disables a link time optimization "ICF", which may merge different
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# functions into one if the function signature and body of them are identical.
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#
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# ICF breaks 1:1 mappings of the external references for V8 snapshot, so we
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# disable it while taking a V8 snapshot.
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config("disable_icf") {
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visibility = [ ":*" ] # Only targets in this file can depend on this.
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if (is_win) {
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ldflags = [ "/OPT:NOICF" ] # link.exe, but also lld-link.exe.
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} else if (use_gold || use_lld) {
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ldflags = [ "-Wl,--icf=none" ]
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}
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}
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executable("v8_context_snapshot_generator") {
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sources = [
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"v8_context_snapshot_generator.cc",
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]
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deps = [
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"//gin:gin",
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"//mojo/edk",
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"//services/service_manager/public/cpp",
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"//third_party/blink/public:blink",
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"//v8",
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]
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if (is_linux && (is_component_build || using_sanitizer) &&
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use_custom_libcxx) {
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deps += [ "//buildtools/third_party/libc++:libc++" ]
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}
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configs += [
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"//v8:external_startup_data",
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":disable_icf",
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]
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}
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}
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