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      1 # Copyright 2013 the V8 project authors. All rights reserved.
      2 # Redistribution and use in source and binary forms, with or without
      3 # modification, are permitted provided that the following conditions are
      4 # met:
      5 #
      6 #     * Redistributions of source code must retain the above copyright
      7 #       notice, this list of conditions and the following disclaimer.
      8 #     * Redistributions in binary form must reproduce the above
      9 #       copyright notice, this list of conditions and the following
     10 #       disclaimer in the documentation and/or other materials provided
     11 #       with the distribution.
     12 #     * Neither the name of Google Inc. nor the names of its
     13 #       contributors may be used to endorse or promote products derived
     14 #       from this software without specific prior written permission.
     15 #
     16 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 
     28 # Compile time controlled V8 features.
     29 
     30 {
     31   'variables': {
     32     'v8_enable_disassembler%': 0,
     33 
     34     'v8_enable_gdbjit%': 0,
     35 
     36     'v8_enable_verify_csa%': 0,
     37 
     38     'v8_object_print%': 0,
     39 
     40     'v8_enable_verify_heap%': 0,
     41 
     42     'v8_trace_maps%': 0,
     43 
     44     # Enable the snapshot feature, for fast context creation.
     45     # http://v8project.blogspot.com/2015/09/custom-startup-snapshots.html
     46     'v8_use_snapshot%': 'true',
     47 
     48     'v8_enable_verify_predictable%': 0,
     49 
     50     # With post mortem support enabled, metadata is embedded into libv8 that
     51     # describes various parameters of the VM for use by debuggers. See
     52     # tools/gen-postmortem-metadata.py for details.
     53     'v8_postmortem_support%': 'false',
     54 
     55     # Interpreted regexp engine exists as platform-independent alternative
     56     # based where the regular expression is compiled to a bytecode.
     57     'v8_interpreted_regexp%': 0,
     58 
     59     # Enable ECMAScript Internationalization API. Enabling this feature will
     60     # add a dependency on the ICU library.
     61     'v8_enable_i18n_support%': 1,
     62 
     63     # Enable compiler warnings when using V8_DEPRECATED apis.
     64     'v8_deprecation_warnings%': 0,
     65 
     66     # Enable compiler warnings when using V8_DEPRECATE_SOON apis.
     67     'v8_imminent_deprecation_warnings%': 0,
     68 
     69     # Set to 1 to enable DCHECKs in release builds.
     70     'dcheck_always_on%': 0,
     71 
     72     # Enable/disable JavaScript API accessors.
     73     'v8_js_accessors%': 0,
     74   },
     75   'target_defaults': {
     76     'conditions': [
     77       ['v8_enable_disassembler==1', {
     78         'defines': ['ENABLE_DISASSEMBLER',],
     79       }],
     80       ['v8_enable_gdbjit==1', {
     81         'defines': ['ENABLE_GDB_JIT_INTERFACE',],
     82       }],
     83       ['v8_enable_verify_csa==1', {
     84         'defines': ['ENABLE_VERIFY_CSA',],
     85       }],
     86       ['v8_object_print==1', {
     87         'defines': ['OBJECT_PRINT',],
     88       }],
     89       ['v8_enable_verify_heap==1', {
     90         'defines': ['VERIFY_HEAP',],
     91       }],
     92       ['v8_trace_maps==1', {
     93         'defines': ['TRACE_MAPS',],
     94       }],
     95       ['v8_enable_verify_predictable==1', {
     96         'defines': ['VERIFY_PREDICTABLE',],
     97       }],
     98       ['v8_interpreted_regexp==1', {
     99         'defines': ['V8_INTERPRETED_REGEXP',],
    100       }],
    101       ['v8_deprecation_warnings==1', {
    102         'defines': ['V8_DEPRECATION_WARNINGS',],
    103       }],
    104       ['v8_imminent_deprecation_warnings==1', {
    105         'defines': ['V8_IMMINENT_DEPRECATION_WARNINGS',],
    106       }],
    107       ['v8_enable_i18n_support==1', {
    108         'defines': ['V8_I18N_SUPPORT',],
    109       }],
    110       ['v8_use_snapshot=="true" and v8_use_external_startup_data==1', {
    111         'defines': ['V8_USE_EXTERNAL_STARTUP_DATA',],
    112       }],
    113       ['dcheck_always_on!=0', {
    114         'defines': ['DEBUG',],
    115       }],
    116     ],  # conditions
    117     'configurations': {
    118       'DebugBaseCommon': {
    119         'abstract': 1,
    120         'variables': {
    121           'v8_enable_handle_zapping%': 1,
    122         },
    123         'conditions': [
    124           ['v8_enable_handle_zapping==1', {
    125             'defines': ['ENABLE_HANDLE_ZAPPING',],
    126           }],
    127         ],
    128       },  # Debug
    129       'Release': {
    130         'variables': {
    131           'v8_enable_handle_zapping%': 0,
    132         },
    133         'conditions': [
    134           ['v8_enable_handle_zapping==1', {
    135             'defines': ['ENABLE_HANDLE_ZAPPING',],
    136           }],
    137         ],  # conditions
    138       },  # Release
    139     },  # configurations
    140   },  # target_defaults
    141 }
    142