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BUILD.gn
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# Copyright 2014 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.
import("//build/config/android/config.gni")
import("//build/config/arm.gni")
import("//build/config/mips.gni")
# Because standalone V8 builds are not supported, assume this is part of a
# Chromium build.
import("//build/module_args/v8.gni")
# TODO(jochen): These will need to be user-settable to support standalone V8
# builds.
v8_deprecation_warnings = false
v8_enable_disassembler = false
v8_enable_gdbjit = false
v8_enable_handle_zapping = true
v8_enable_i18n_support = true
v8_enable_verify_heap = false
v8_interpreted_regexp = false
v8_object_print = false
v8_postmortem_support = false
v8_use_snapshot = true
v8_target_arch = target_cpu
v8_random_seed = "314159265"
v8_toolset_for_d8 = "host"
# The snapshot needs to be compiled for the host, but compiled with
# a toolchain that matches the bit-width of the target.
#
# TODO(GYP): For now we only support 32-bit little-endian target builds from an
# x64 Linux host. Eventually we need to support all of the host/target
# configurations v8 runs on.
if (host_cpu == "x64" && host_os == "linux") {
if (target_cpu == "arm" || target_cpu == "mipsel" || target_cpu == "x86") {
snapshot_toolchain = "//build/toolchain/linux:clang_x86"
} else if (target_cpu == "x64") {
snapshot_toolchain = "//build/toolchain/linux:clang_x64"
} else {
assert(false, "Need environment for this arch")
}
} else {
snapshot_toolchain = default_toolchain
}
###############################################################################
# Configurations
#
config("internal_config") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
include_dirs = [ "." ]
if (is_component_build) {
defines = [
"V8_SHARED",
"BUILDING_V8_SHARED",
]
}
}
config("internal_config_base") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
include_dirs = [ "." ]
}
# This config should only be applied to code using V8 and not any V8 code
# itself.
config("external_config") {
if (is_component_build) {
defines = [
"V8_SHARED",
"USING_V8_SHARED",
]
}
include_dirs = [ "include" ]
}
config("features") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
defines = []
if (v8_enable_disassembler == true) {
defines += [ "ENABLE_DISASSEMBLER" ]
}
if (v8_enable_gdbjit == true) {
defines += [ "ENABLE_GDB_JIT_INTERFACE" ]
}
if (v8_object_print == true) {
defines += [ "OBJECT_PRINT" ]
}
if (v8_enable_verify_heap == true) {
defines += [ "VERIFY_HEAP" ]
}
if (v8_interpreted_regexp == true) {
defines += [ "V8_INTERPRETED_REGEXP" ]
}
if (v8_deprecation_warnings == true) {
defines += [ "V8_DEPRECATION_WARNINGS" ]
}
if (v8_enable_i18n_support == true) {
defines += [ "V8_I18N_SUPPORT" ]
}
if (v8_enable_handle_zapping == true) {
defines += [ "ENABLE_HANDLE_ZAPPING" ]
}
if (v8_use_external_startup_data == true) {
defines += [ "V8_USE_EXTERNAL_STARTUP_DATA" ]
}
}
config("toolchain") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
defines = []
cflags = []
# TODO(jochen): Add support for arm subarchs, mips, mipsel, mips64el.
if (v8_target_arch == "arm") {
defines += [ "V8_TARGET_ARCH_ARM" ]
if (current_cpu == "arm") {
if (arm_version == 7) {
defines += [ "CAN_USE_ARMV7_INSTRUCTIONS" ]
}
if (arm_fpu == "vfpv3-d16") {
defines += [ "CAN_USE_VFP3_INSTRUCTIONS" ]
} else if (arm_fpu == "vfpv3") {
defines += [
"CAN_USE_VFP3_INSTRUCTIONS",
"CAN_USE_VFP32DREGS",
]
} else if (arm_fpu == "neon") {
defines += [
"CAN_USE_VFP3_INSTRUCTIONS",
"CAN_USE_VFP32DREGS",
"CAN_USE_NEON",
]
}
} else {
# These defines ares used for the ARM simulator.
defines += [
"CAN_USE_ARMV7_INSTRUCTIONS",
"CAN_USE_VFP3_INSTRUCTIONS",
"CAN_USE_VFP32DREGS",
"USE_EABI_HARDFLOAT=0",
]
}
# TODO(jochen): Add support for arm_test_noprobe.
}
if (v8_target_arch == "arm64") {
defines += [ "V8_TARGET_ARCH_ARM64" ]
}
if (v8_target_arch == "mipsel") {
defines += [ "V8_TARGET_ARCH_MIPS" ]
}
if (v8_target_arch == "mips64el") {
defines += [ "V8_TARGET_ARCH_MIPS64" ]
}
if (v8_target_arch == "x86") {
defines += [ "V8_TARGET_ARCH_IA32" ]
}
if (v8_target_arch == "x64") {
defines += [ "V8_TARGET_ARCH_X64" ]
}
if (is_win) {
defines += [ "WIN32" ]
# TODO(jochen): Support v8_enable_prof.
}
# TODO(jochen): Add support for compiling with simulators.
if (is_debug) {
# TODO(jochen): Add support for different debug optimization levels.
defines += [
"ENABLE_DISASSEMBLER",
"V8_ENABLE_CHECKS",
"OBJECT_PRINT",
"VERIFY_HEAP",
"DEBUG",
"OPTIMIZED_DEBUG",
]
}
}
###############################################################################
# Actions
#
action("js2c") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
script = "tools/js2c.py"
# The script depends on this other script, this rule causes a rebuild if it
# changes.
inputs = [ "tools/jsmin.py" ]
sources = [
"src/macros.py",
"src/messages.h",
"src/runtime.js",
"src/prologue.js",
"src/v8natives.js",
"src/symbol.js",
"src/array.js",
"src/string.js",
"src/uri.js",
"src/math.js",
"src/third_party/fdlibm/fdlibm.js",
"src/date.js",
"src/regexp.js",
"src/arraybuffer.js",
"src/typedarray.js",
"src/iterator-prototype.js",
"src/generator.js",
"src/object-observe.js",
"src/collection.js",
"src/weak-collection.js",
"src/collection-iterator.js",
"src/promise.js",
"src/messages.js",
"src/json.js",
"src/array-iterator.js",
"src/string-iterator.js",
"src/debug-debugger.js",
"src/mirror-debugger.js",
"src/liveedit-debugger.js",
"src/templates.js",
]
outputs = [
"$target_gen_dir/libraries.cc",
]
if (v8_enable_i18n_support) {
sources += [ "src/i18n.js" ]
}
args = [
rebase_path("$target_gen_dir/libraries.cc", root_build_dir),
"CORE",
] + rebase_path(sources, root_build_dir)
if (v8_use_external_startup_data) {
outputs += [ "$target_gen_dir/libraries.bin" ]
args += [
"--startup_blob",
rebase_path("$target_gen_dir/libraries.bin", root_build_dir),
]
}
}
action("js2c_experimental") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
script = "tools/js2c.py"
# The script depends on this other script, this rule causes a rebuild if it
# changes.
inputs = [ "tools/jsmin.py" ]
sources = [
"src/macros.py",
"src/messages.h",
"src/proxy.js",
"src/generator.js",
"src/harmony-atomics.js",
"src/harmony-array.js",
"src/harmony-array-includes.js",
"src/harmony-typedarray.js",
"src/harmony-tostring.js",
"src/harmony-regexp.js",
"src/harmony-reflect.js",
"src/harmony-spread.js",
"src/harmony-object.js",
"src/harmony-sharedarraybuffer.js"
]
outputs = [
"$target_gen_dir/experimental-libraries.cc",
]
args = [
rebase_path("$target_gen_dir/experimental-libraries.cc",
root_build_dir),
"EXPERIMENTAL",
] + rebase_path(sources, root_build_dir)
if (v8_use_external_startup_data) {
outputs += [ "$target_gen_dir/libraries_experimental.bin" ]
args += [
"--startup_blob",
rebase_path("$target_gen_dir/libraries_experimental.bin", root_build_dir),
]
}
}
action("js2c_extras") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
script = "tools/js2c.py"
# The script depends on this other script, this rule causes a rebuild if it
# changes.
inputs = [ "tools/jsmin.py" ]
sources = v8_extra_library_files
outputs = [
"$target_gen_dir/extras-libraries.cc",
]
args = [
rebase_path("$target_gen_dir/extras-libraries.cc",
root_build_dir),
"EXTRAS",
] + rebase_path(sources, root_build_dir)
if (v8_use_external_startup_data) {
outputs += [ "$target_gen_dir/libraries_extras.bin" ]
args += [
"--startup_blob",
rebase_path("$target_gen_dir/libraries_extras.bin", root_build_dir),
]
}
}
action("d8_js2c") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
script = "tools/js2c.py"
inputs = [
"src/d8.js",
"src/macros.py",
]
outputs = [
"$target_gen_dir/d8-js.cc",
]
args = rebase_path(outputs, root_build_dir) + [ "D8" ] +
rebase_path(inputs, root_build_dir)
}
if (v8_use_external_startup_data) {
action("natives_blob") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
deps = [
":js2c",
":js2c_experimental",
":js2c_extras",
]
sources = [
"$target_gen_dir/libraries.bin",
"$target_gen_dir/libraries_experimental.bin",
"$target_gen_dir/libraries_extras.bin",
]
outputs = [
"$root_out_dir/natives_blob.bin",
]
script = "tools/concatenate-files.py"
args = rebase_path(sources + outputs, root_build_dir)
}
}
action("postmortem-metadata") {
# Only targets in this file and the top-level visibility target can
# depend on this.
visibility = [
":*",
"//:gn_visibility",
]
script = "tools/gen-postmortem-metadata.py"
sources = [
"src/objects.h",
"src/objects-inl.h",
]
outputs = [
"$target_gen_dir/debug-support.cc",
]
args = rebase_path(outputs, root_build_dir) +
rebase_path(sources, root_build_dir)
}
action("run_mksnapshot") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
deps = [
":mksnapshot($snapshot_toolchain)",
]
script = "tools/run.py"
outputs = [
"$target_gen_dir/snapshot.cc",
]
args = [
"./" + rebase_path(get_label_info(":mksnapshot($snapshot_toolchain)",
"root_out_dir") + "/mksnapshot",
root_build_dir),
"--log-snapshot-positions",
"--logfile",
rebase_path("$target_gen_dir/snapshot.log", root_build_dir),
rebase_path("$target_gen_dir/snapshot.cc", root_build_dir),
]
if (v8_random_seed != "0") {
args += [
"--random-seed",
v8_random_seed,
]
}
if (v8_use_external_startup_data) {
outputs += [ "$root_out_dir/snapshot_blob.bin" ]
args += [
"--startup_blob",
rebase_path("$root_out_dir/snapshot_blob.bin", root_build_dir),
]
}
}
###############################################################################
# Source Sets (aka static libraries)
#
source_set("v8_nosnapshot") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
deps = [
":js2c",
":js2c_experimental",
":js2c_extras",
":v8_base",
]
sources = [
"$target_gen_dir/libraries.cc",
"$target_gen_dir/experimental-libraries.cc",
"$target_gen_dir/extras-libraries.cc",
"src/snapshot/snapshot-empty.cc",
]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [
":internal_config",
":features",
":toolchain",
]
}
source_set("v8_snapshot") {
# Only targets in this file and the top-level visibility target can
# depend on this.
visibility = [
":*",
"//:gn_visibility",
]
deps = [
":js2c",
":js2c_experimental",
":js2c_extras",
":v8_base",
]
public_deps = [
# This should be public so downstream targets can declare the snapshot
# output file as their inputs.
":run_mksnapshot",
]
sources = [
"$target_gen_dir/libraries.cc",
"$target_gen_dir/experimental-libraries.cc",
"$target_gen_dir/extras-libraries.cc",
"$target_gen_dir/snapshot.cc",
]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [
":internal_config",
":features",
":toolchain",
]
}
if (v8_use_external_startup_data) {
source_set("v8_external_snapshot") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
deps = [
":js2c",
":js2c_experimental",
":js2c_extras",
":v8_base",
]
public_deps = [
":natives_blob",
":run_mksnapshot",
]
sources = [
"src/snapshot/natives-external.cc",
"src/snapshot/snapshot-external.cc",
]
configs -= [ "//build/config/compiler:chromium_code" ]
configs += [ "//build/config/compiler:no_chromium_code" ]
configs += [
":internal_config",
":features",
":toolchain",
]
}
}
source_set("v8_base") {
visibility = [ ":*" ] # Only targets in this file can depend on this.
sources = [
"src/accessors.cc",
"src/accessors.h",
"src/allocation.cc",
"src/allocation.h",
"src/allocation-site-scopes.cc",
"src/allocation-site-scopes.h",
"src/allocation-tracker.cc",
"src/allocation-tracker.h",
"src/api.cc",
"src/api.h",
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