lts/tools/v8_gypfiles/features.gypi
# Copyright 2013 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Compile time controlled V8 features.
{
'variables': {
'v8_target_arch%': '<(target_arch)',
'v8_current_cpu%': '<(target_arch)',
# Emulate GN variables
# https://chromium.googlesource.com/chromium/src/build/+/556c524beb09c332698debe1b47b065d5d029cd0/config/BUILDCONFIG.gn#269
'conditions': [
['OS == "win" or OS == "winuwp"', {
'is_win': 1,
}, {
'is_win': 0,
}],
['OS == "fuchsia"', {
'is_fuchsia': 1,
}, {
'is_fuchsia': 0,
}],
['OS=="android"', { # GYP reverts OS to linux so use `-D OS=android`
'is_android': 1,
}, {
'is_android': 0,
}],
# flattened (!is_win && !is_fuchsia) because of GYP evaluation order
['not (OS == "win" or OS == "winuwp") and not (OS == "fuchsia")', {
'is_posix': 1,
}, {
'is_posix': 0,
}],
['component and "library" in component', {
'is_component_build': 1,
}, {
'is_component_build': 0,
}],
],
'is_debug%': 0,
# Variables from BUILD.gn
# Set to 1 to enable DCHECKs in release builds.
'dcheck_always_on%': 0,
# Sets -DV8_ENABLE_FUTURE.
'v8_enable_future%': 0,
# Lite mode disables a number of performance optimizations to reduce memory
# at the cost of performance.
# Sets --DV8_LITE_MODE.
'v8_enable_lite_mode%': 0,
# Sets -DVERIFY_HEAP.
'v8_enable_verify_heap%': 0,
# Sets -DVERIFY_PREDICTABLE
'v8_enable_verify_predictable%': 0,
# Enable compiler warnings when using V8_DEPRECATED apis.
'v8_deprecation_warnings%': 0,
# Enable compiler warnings when using V8_DEPRECATE_SOON apis.
'v8_imminent_deprecation_warnings%': 0,
# Allows the embedder to add a custom suffix to the version string.
'v8_embedder_string%': '',
# Sets -dENABLE_DISASSEMBLER.
'v8_enable_disassembler%': 0,
# Sets the number of internal fields on promise objects.
'v8_promise_internal_field_count%': 0,
# Sets -dENABLE_GDB_JIT_INTERFACE.
'v8_enable_gdbjit%': 0,
# Currently set for node by common.gypi, avoiding default because of gyp file bug.
# Should be turned on only for debugging.
#'v8_enable_handle_zapping%': 0,
# Enable fast mksnapshot runs.
'v8_enable_fast_mksnapshot%': 0,
# Enable embedded builtins.
'v8_enable_embedded_builtins%': 1,
# Enable the registration of unwinding info for Windows/x64 and ARM64.
'v8_win64_unwinding_info%': 1,
# Enable code comments for builtins in the snapshot (impacts performance).
'v8_enable_snapshot_code_comments%': 0,
# Enable native counters from the snapshot (impacts performance, sets
# -dV8_SNAPSHOT_NATIVE_CODE_COUNTERS).
# This option will generate extra code in the snapshot to increment counters,
# as per the --native-code-counters flag.
'v8_enable_snapshot_native_code_counters%': 0,
# Enable code-generation-time checking of types in the CodeStubAssembler.
'v8_enable_verify_csa%': 0,
# Enable pointer compression (sets -dV8_COMPRESS_POINTERS).
'v8_enable_pointer_compression%': 0,
'v8_enable_31bit_smis_on_64bit_arch%': 0,
# Sets -dOBJECT_PRINT.
'v8_enable_object_print%': 0,
# Sets -dV8_TRACE_MAPS.
'v8_enable_trace_maps%': 0,
# Sets -dV8_ENABLE_CHECKS.
'v8_enable_v8_checks%': 0,
# Sets -dV8_TRACE_IGNITION.
'v8_enable_trace_ignition%': 0,
# Sets -dV8_TRACE_FEEDBACK_UPDATES.
'v8_enable_trace_feedback_updates%': 0,
# Sets -dV8_CONCURRENT_MARKING
'v8_enable_concurrent_marking%': 1,
# Enables various testing features.
'v8_enable_test_features%': 0,
# Enables raw heap snapshots containing internals. Used for debugging memory
# on platform and embedder level.
'v8_enable_raw_heap_snapshots%': 0,
# With post mortem support enabled, metadata is embedded into libv8 that
# describes various parameters of the VM for use by debuggers. See
# tools/gen-postmortem-metadata.py for details.
'v8_postmortem_support%': 0,
# Use Siphash as added protection against hash flooding attacks.
'v8_use_siphash%': 0,
# Use Perfetto (https://perfetto.dev) as the default TracingController. Not
# currently implemented.
'v8_use_perfetto%': 0,
# Controls the threshold for on-heap/off-heap Typed Arrays.
'v8_typed_array_max_size_in_heap%': 64,
# Temporary flag to allow embedders to update their microtasks scopes
# while rolling in a new version of V8.
'v8_check_microtasks_scopes_consistency%': 0,
# Enable mitigations for executing untrusted code.
'v8_untrusted_code_mitigations%': 1,
# Enable minor mark compact.
'v8_enable_minor_mc%': 1,
# Enable lazy source positions by default.
'v8_enable_lazy_source_positions%': 1,
# Disable write barriers when GCs are non-incremental and
# heap has single generation.
'v8_disable_write_barriers%': 0,
# Redirect allocation in young generation so that there will be
# only one single generation.
'v8_enable_single_generation%': 0,
# Use token threaded dispatch for the regular expression interpreter.
# Use switch-based dispatch if this is false.
'v8_enable_regexp_interpreter_threaded_dispatch%': 1,
# Variables from v8.gni
# Enable the snapshot feature, for fast context creation.
# http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html
'v8_use_snapshot%': 1,
# Enable ECMAScript Internationalization API. Enabling this feature will
# add a dependency on the ICU library.
'v8_enable_i18n_support%': 1,
},
'target_defaults': {
'conditions': [
['v8_embedder_string!=""', {
'defines': ['V8_EMBEDDER_STRING="<(v8_embedder_string)"',],
}],
['v8_enable_disassembler==1', {
'defines': ['ENABLE_DISASSEMBLER',],
}],
['v8_promise_internal_field_count!=0', {
'defines': ['V8_PROMISE_INTERNAL_FIELD_COUNT=<(v8_promise_internal_field_count)'],
}],
['v8_enable_raw_heap_snapshots==1', {
'defines': ['V8_ENABLE_RAW_HEAP_SNAPSHOTS',],
}],
['v8_enable_future==1', {
'defines': ['V8_ENABLE_FUTURE',],
}],
['v8_enable_lite_mode==1', {
'defines': [
'V8_LITE_MODE',
'V8_JITLESS_MODE',
],
}],
['v8_enable_gdbjit==1', {
'defines': ['ENABLE_GDB_JIT_INTERFACE',],
}],
['v8_enable_minor_mc==1', {
'defines': ['ENABLE_MINOR_MC',],
}],
['v8_enable_pointer_compression==1', {
'defines': ['V8_COMPRESS_POINTERS',],
}],
['v8_enable_pointer_compression==1 or v8_enable_31bit_smis_on_64bit_arch==1', {
'defines': ['V8_31BIT_SMIS_ON_64BIT_ARCH',],
}],
['v8_enable_object_print==1', {
'defines': ['OBJECT_PRINT',],
}],
['v8_enable_verify_heap==1', {
'defines': ['VERIFY_HEAP',],
}],
['v8_enable_verify_predictable==1', {
'defines': ['VERIFY_PREDICTABLE',],
}],
['v8_enable_trace_maps==1', {
'defines': ['V8_TRACE_MAPS',],
}],
['v8_enable_trace_ignition==1', {
'defines': ['V8_TRACE_IGNITION',],
}],
['v8_enable_trace_feedback_updates==1', {
'defines': ['V8_TRACE_FEEDBACK_UPDATES',],
}],
['v8_enable_test_features==1', {
'defines': [
'V8_ENABLE_ALLOCATION_TIMEOUT',
'V8_ENABLE_FORCE_SLOW_PATH',
'V8_ENABLE_DOUBLE_CONST_STORE_CHECK',
],
}],
['v8_enable_v8_checks==1', {
'defines': ['V8_ENABLE_CHECKS',],
}],
['v8_deprecation_warnings==1', {
'defines': ['V8_DEPRECATION_WARNINGS',],
},{
'defines!': ['V8_DEPRECATION_WARNINGS',],
}],
['v8_imminent_deprecation_warnings==1', {
'defines': ['V8_IMMINENT_DEPRECATION_WARNINGS',],
},{
'defines!': ['V8_IMMINENT_DEPRECATION_WARNINGS',],
}],
['v8_enable_i18n_support==1', {
'defines': ['V8_INTL_SUPPORT',],
}],
# Refs: https://github.com/nodejs/node/pull/23801
# ['v8_enable_handle_zapping==1', {
# 'defines': ['ENABLE_HANDLE_ZAPPING',],
# }],
['v8_use_snapshot==1', {
'defines': ['V8_USE_SNAPSHOT',],
'conditions': [
['v8_enable_snapshot_native_code_counters==1', {
'defines': ['V8_SNAPSHOT_NATIVE_CODE_COUNTERS',],
}],
],
}],
['v8_enable_single_generation==1', {
'defines': ['V8_ENABLE_SINGLE_GENERATION',],
}],
['v8_disable_write_barriers==1', {
'defines': ['V8_DISABLE_WRITE_BARRIERS',],
}],
['v8_enable_concurrent_marking==1', {
'defines': ['V8_CONCURRENT_MARKING',],
}],
['v8_enable_lazy_source_positions==1', {
'defines': ['V8_ENABLE_LAZY_SOURCE_POSITIONS',],
}],
['v8_check_microtasks_scopes_consistency==1', {
'defines': ['V8_CHECK_MICROTASKS_SCOPES_CONSISTENCY',],
}],
['v8_enable_embedded_builtins==1', {
'defines': ['V8_EMBEDDED_BUILTINS',],
}],
['v8_use_siphash==1', {
'defines': ['V8_USE_SIPHASH',],
}],
['dcheck_always_on!=0', {
'defines': ['DEBUG',],
}],
['v8_enable_verify_csa==1', {
'defines': ['ENABLE_VERIFY_CSA',],
}],
['v8_untrusted_code_mitigations==0', {
'defines': ['DISABLE_UNTRUSTED_CODE_MITIGATIONS',],
}],
['v8_use_perfetto==1', {
'defines': ['V8_USE_PERFETTO',],
}],
['v8_win64_unwinding_info==1', {
'defines': ['V8_WIN64_UNWINDING_INFO',],
}],
['v8_enable_regexp_interpreter_threaded_dispatch==1', {
'defines': ['V8_ENABLE_REGEXP_INTERPRETER_THREADED_DISPATCH',],
}],
], # conditions
'defines': [
'V8_GYP_BUILD',
'V8_TYPED_ARRAY_MAX_SIZE_IN_HEAP=<(v8_typed_array_max_size_in_heap)',
], # defines
}, # target_defaults
}