Remove the fledgling Thumb2 support since we are concentrating...

SConstruct

 # Copyright 2010 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 192 matching lines @@
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
     },
     'arch:arm': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_ARM']
     },
     'simulator:arm': {
       'CCFLAGS':      ['-m32', '-DCAN_USE_UNALIGNED_ACCESSES=1'],
       'LINKFLAGS':    ['-m32']
     },
-    'armvariant:thumb2': {
-      'CPPDEFINES':   ['V8_ARM_VARIANT_THUMB']
-    },
-    'armvariant:arm': {
-      'CPPDEFINES':   ['V8_ARM_VARIANT_ARM']
-    },
     'arch:mips': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_MIPS'],
       'simulator:none': {
         'CCFLAGS':      ['-EL', '-mips32r2', '-Wa,-mips32r2', '-fno-inline'],
         'LDFLAGS':      ['-EL']
       }
     },
     'simulator:mips': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
@@ skipping 529 matching lines @@
   'verbose': {
     'values': ['on', 'off'],
     'default': 'off',
     'help': 'more output from compiler and linker'
   },
   'visibility': {
     'values': ['default', 'hidden'],
     'default': 'hidden',
     'help': 'shared library symbol visibility'
   },
-  'armvariant': {
-    'values': ['arm', 'thumb2', 'none'],
-    'default': 'none',
-    'help': 'generate thumb2 instructions instead of arm instructions (default)'
-  },
   'pgo': {
     'values': ['off', 'instrument', 'optimize'],
     'default': 'off',
     'help': 'select profile guided optimization variant',
   }
 }
 
 
 def GetOptions():
   result = Options()
@@ skipping 173 matching lines @@
       print "Warning: forcing architecture to match simulator (%s)" % options['simulator']
     options['arch'] = options['simulator']
   if (options['prof'] != 'off') and (options['profilingsupport'] == 'off'):
     # Print a warning if profiling is enabled without profiling support
     print "Warning: forcing profilingsupport on when prof is on"
     options['profilingsupport'] = 'on'
   if os == 'win32' and options['pgo'] != 'off' and options['msvcltcg'] == 'off':
     if 'msvcltcg' in ARGUMENTS:
       print "Warning: forcing msvcltcg on as it is required for pgo (%s)" % options['pgo']
     options['msvcltcg'] = 'on'
-  if (options['armvariant'] == 'none' and options['arch'] == 'arm'):
-    options['armvariant'] = 'arm'
-  if (options['armvariant'] != 'none' and options['arch'] != 'arm'):
-    options['armvariant'] = 'none'
   if options['arch'] == 'mips':
     if ('regexp' in ARGUMENTS) and options['regexp'] == 'native':
       # Print a warning if native regexp is specified for mips
       print "Warning: forcing regexp to interpreted for mips"
     options['regexp'] = 'interpreted'
 
 
 def ParseEnvOverrides(arg, imports):
   # The environment overrides are in the format NAME0:value0,NAME1:value1,...
   # The environment imports are in the format NAME0,NAME1,...
@@ skipping 157 matching lines @@
 # version of scons.  Also, there's a bug in some revisions that
 # doesn't allow this flag to be set, so we swallow any exceptions.
 # Lovely.
 try:
   SetOption('warn', 'no-deprecated')
 except:
   pass
 
 
 Build()