ARM: Enhance the hardfloat support

SConstruct

-# Copyright 2010 the V8 project authors. All rights reserved.
+# 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
 #       with the distribution.
@@ skipping 136 matching lines @@
       'LINKFLAGS':    ['-m32']
     },
     'arch:arm': {
       'CPPDEFINES':   ['V8_TARGET_ARCH_ARM'],
       'unalignedaccesses:on' : {
         'CPPDEFINES' : ['CAN_USE_UNALIGNED_ACCESSES=1']
       },
       'unalignedaccesses:off' : {
         'CPPDEFINES' : ['CAN_USE_UNALIGNED_ACCESSES=0']
       },
-      'armeabi:softfloat' : {
+      'armeabi:soft' : {
+        'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+        'simulator:none': {
+          'CCFLAGS':     ['-mfloat-abi=soft'],
+        }
+      },
+      'armeabi:softfp' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=softfp'],
         }
       },
-      'armeabi:hardfloat' : {
+      'armeabi:hard' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=1', 'CAN_USE_VFP_INSTRUCTIONS'],
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=hard'],
         }
       }
     },
     'simulator:arm': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32'],
     },
@@ skipping 286 matching lines @@
     },
     'os:openbsd': {
       'LIBPATH' :     ['/usr/local/lib'],
       'LIBS':         ['execinfo', 'pthread']
     },
     'os:win32': {
       'LIBS':         ['winmm', 'ws2_32']
     },
     'arch:arm': {
       'LINKFLAGS':   ARM_LINK_FLAGS,
-      'armeabi:softfloat' : {
+      'armeabi:soft' : {
+        'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+        'simulator:none': {
+          'CCFLAGS':     ['-mfloat-abi=soft'],
+        }
+      },
+      'armeabi:softfp' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=softfp'],
         }
       },
-      'armeabi:hardfloat' : {
+      'armeabi:hard' : {
         'CPPDEFINES' : ['USE_EABI_HARDFLOAT=1', 'CAN_USE_VFP_INSTRUCTIONS'],
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=hard'],
         }
       }
     },
     'arch:ia32': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
     },
@@ skipping 96 matching lines @@
       'LIBPATH':      ['.'],
       'CCFLAGS':      ['$DIALECTFLAGS', '$WARNINGFLAGS'],
       'CXXFLAGS':     ['$CCFLAGS', '-fno-rtti', '-fno-exceptions'],
       'LINKFLAGS':    ['$CCFLAGS'],
     },
     'os:win32': {
       'LIBS':         ['winmm', 'ws2_32']
     },
     'arch:arm': {
       'LINKFLAGS':   ARM_LINK_FLAGS,
-      'armeabi:softfloat' : {
+      'armeabi:soft' : {
+        'CPPDEFINES' : ['USE_EABI_HARDFLOAT=0'],
+        'simulator:none': {
+          'CCFLAGS':     ['-mfloat-abi=soft'],
+        }
+      },
+      'armeabi:softfp' : {
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=softfp'],
         }
       },
-      'armeabi:hardfloat' : {
+      'armeabi:hard' : {
         'simulator:none': {
           'CCFLAGS':     ['-mfloat-abi=hard'],
         }
       }
     },
     'arch:ia32': {
       'CCFLAGS':      ['-m32'],
       'LINKFLAGS':    ['-m32']
     },
     'arch:x64': {
@@ skipping 345 matching lines @@
     'values': ['default', 'off'],
     'guess': GuessStrictAliasing,
     'help': 'assume strict aliasing while optimizing'
   },
   'pgo': {
     'values': ['off', 'instrument', 'optimize'],
     'default': 'off',
     'help': 'select profile guided optimization variant',
   },
   'armeabi': {
-    'values': ['hardfloat', 'softfloat'],
-    'default': 'softfloat',
+    'values': ['hard', 'softfp', 'soft'],
+    'default': 'softfp',
     'help': 'generate calling conventiont according to selected ARM EABI variant'
   },
   'mipsabi': {
     'values': ['hardfloat', 'softfloat', 'none'],
     'default': 'hardfloat',
     'help': 'generate calling conventiont according to selected mips ABI'
   },
   'mips_arch_variant': {
     'values': ['mips32r2', 'mips32r1'],
     'default': 'mips32r2',
@@ skipping 432 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()