Add a bunch of compile-time flags to the gyp build (and top-level Makefile)

build/common.gypi

 # Copyright 2011 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
@@ skipping 40 matching lines @@
     'v8_can_use_vfp_instructions%': 'false',
 
     # Setting v8_use_arm_eabi_hardfloat to true will turn on V8 support for ARM
     # EABI calling convention where double arguments are passed in VFP
     # registers. Note that the GCC flag '-mfloat-abi=hard' should be used as
     # well when compiling for the ARM target.
     'v8_use_arm_eabi_hardfloat%': 'false',
 
     'v8_enable_debugger_support%': 1,
 
+    'v8_enable_disassembler%': 0,
+
+    'v8_enable_gdbjit%': 0,
+
+    # Enable profiling support. Only required on Windows.
+    'v8_enable_prof%': 0,
+
     # Chrome needs this definition unconditionally. For standalone V8 builds,
     # it's handled in build/standalone.gypi.
     'want_separate_host_toolset%': 1,
 
     'v8_use_snapshot%': 'true',
     'host_os%': '<(OS)',
     'v8_use_liveobjectlist%': 'false',
   },
   'target_defaults': {
     'conditions': [
       ['v8_enable_debugger_support==1', {
-          'defines': ['ENABLE_DEBUGGER_SUPPORT',],
-        },
-      ],
+        'defines': ['ENABLE_DEBUGGER_SUPPORT',],
+      }],
+      ['v8_enable_disassembler==1', {
+        'defines': ['ENABLE_DISASSEMBLER',],
+      }],
+      ['v8_enable_gdbjit==1', {
+        'defines': ['ENABLE_GDB_JIT_INTERFACE',],
+      }],
       ['OS!="mac"', {
         # TODO(mark): The OS!="mac" conditional is temporary. It can be
         # removed once the Mac Chromium build stops setting target_arch to
         # ia32 and instead sets it to mac. Other checks in this file for
         # OS=="mac" can be removed at that time as well. This can be cleaned
         # up once http://crbug.com/44205 is fixed.
         'conditions': [
           ['v8_target_arch=="arm"', {
             'defines': [
               'V8_TARGET_ARCH_ARM',
@@ skipping 62 matching lines @@
           'INSPECTOR',
           'OBJECT_PRINT',
           'LIVEOBJECTLIST',
         ],
       }],
       ['v8_compress_startup_data=="bz2"', {
         'defines': [
           'COMPRESS_STARTUP_DATA_BZ2',
         ],
       }],
+      ['OS=="win" and v8_enable_prof==1', {
+        'msvs_settings': {
+          'VCLinkerTool': {
+            'GenerateMapFile': 'true',
+          },
+        },
+      }],
     ],
     'configurations': {
       'Debug': {
         'defines': [
           'DEBUG',
           'ENABLE_DISASSEMBLER',
           'V8_ENABLE_CHECKS',
           'OBJECT_PRINT',
         ],
         'msvs_settings': {
@@ skipping 95 matching lines @@
                 # some test cases can cause stack overflow.
                 # 'StackReserveSize': '297152',
               },
             },
           }],
         ],
       },
     },
   },
 }