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# 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
'conditions': [
['OS=="android"', { # GYP reverts OS to linux so use `-D OS=android`
'is_android': 1,
}, {
'is_android': 0,
}],
],
# Allows the embedder to add a custom suffix to the version string.
'v8_embedder_string%': '',
'v8_enable_disassembler%': 0,
'v8_promise_internal_field_count%': 0,
'v8_enable_gdbjit%': 0,
'v8_enable_verify_csa%': 0,
'v8_object_print%': 0,
'v8_enable_verify_heap%': 0,
'v8_trace_maps%': 0,
# Enable the snapshot feature, for fast context creation.
# http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html
'v8_use_snapshot%': 'true',
'v8_enable_verify_predictable%': 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%': 'false',
# Interpreted regexp engine exists as platform-independent alternative
# based where the regular expression is compiled to a bytecode.
'v8_interpreted_regexp%': 0,
# Enable ECMAScript Internationalization API. Enabling this feature will
# add a dependency on the ICU library.
'v8_enable_i18n_support%': 1,
# 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,
# Set to 1 to enable DCHECKs in release builds.
'dcheck_always_on%': 0,
# Enable/disable JavaScript API accessors.
'v8_js_accessors%': 0,
# Temporary flag to allow embedders to update their microtasks scopes.
'v8_check_microtasks_scopes_consistency%': 'false',
# Enable concurrent marking.
'v8_enable_concurrent_marking%': 1,
# Enables various testing features.
'v8_enable_test_features%': 0,
# Controls the threshold for on-heap/off-heap Typed Arrays.
'v8_typed_array_max_size_in_heap%': 64,
# Enable mitigations for executing untrusted code.
'v8_untrusted_code_mitigations%': 'true',
# 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,
'v8_enable_pointer_compression%': 'false',
'v8_enable_embedded_builtins%': 'true',
'v8_perf_prof_unwinding_info%': 0,
'v8_enable_fast_mksnapshot%': 0,
},
'conditions': [
# V8's predicate inverted since we default to 'true' and set 'false' for unsupported cases.
# v8_use_snapshot && v8_current_cpu != "x86" && !is_aix && ( !is_win || is_clang)
['not (v8_use_snapshot=="true" and v8_target_arch !="ia32" and OS!="aix" and (OS!="win" or clang==1))', {
'variables': {
'v8_enable_embedded_builtins': 'false',
}
}],
],
'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_gdbjit==1', {
'defines': ['ENABLE_GDB_JIT_INTERFACE',],
}],
['v8_enable_verify_csa==1', {
'defines': ['ENABLE_VERIFY_CSA',],
}],
['v8_object_print==1', {
'defines': ['OBJECT_PRINT',],
}],
['v8_enable_verify_heap==1', {
'defines': ['VERIFY_HEAP',],
}],
['v8_trace_maps==1', {
'defines': ['V8_TRACE_MAPS',],
}],
['v8_enable_test_features==1', {
'defines': ['V8_ENABLE_ALLOCATION_TIMEOUT', 'V8_ENABLE_FORCE_SLOW_PATH'],
}],
['v8_enable_verify_predictable==1', {
'defines': ['VERIFY_PREDICTABLE',],
}],
['v8_interpreted_regexp==1', {
'defines': ['V8_INTERPRETED_REGEXP',],
}],
['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',],
}],
['v8_use_snapshot=="true" and v8_use_external_startup_data==1', {
'defines': ['V8_USE_EXTERNAL_STARTUP_DATA',],
}],
['dcheck_always_on!=0', {
'defines': ['DEBUG',],
}],
['v8_check_microtasks_scopes_consistency=="true"', {
'defines': ['V8_CHECK_MICROTASKS_SCOPES_CONSISTENCY',],
}],
['v8_enable_concurrent_marking==1', {
'defines': ['V8_CONCURRENT_MARKING',],
}],
['v8_untrusted_code_mitigations=="false"', {
'defines': ['DISABLE_UNTRUSTED_CODE_MITIGATIONS',],
}],
# Refs: https://github.com/nodejs/node/pull/23801
# ['v8_enable_handle_zapping==1', {
# 'defines': ['ENABLE_HANDLE_ZAPPING',],
# }],
['v8_enable_pointer_compression=="true"', {
'defines': ['V8_COMPRESS_POINTERS',],
}],
['v8_enable_embedded_builtins=="true"', {
'defines': [
'V8_EMBEDDED_BUILTINS',
'V8_EMBEDDED_BYTECODE_HANDLERS',
],
}],
], # conditions
'defines': [
'V8_GYP_BUILD',
'V8_TYPED_ARRAY_MAX_SIZE_IN_HEAP=<(v8_typed_array_max_size_in_heap)',
], # defines
}, # target_defaults
}
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