Adds armv5 build and test target.

tools/build.py

 #!/usr/bin/env python
 #
 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 #
 
 import optparse
 import os
 import re
@@ skipping 37 matching lines @@
   result = optparse.OptionParser(usage=usage)
   result.add_option("-m", "--mode",
       help='Build variants (comma-separated).',
       metavar='[all,debug,release]',
       default='debug')
   result.add_option("-v", "--verbose",
       help='Verbose output.',
       default=False, action="store_true")
   result.add_option("-a", "--arch",
       help='Target architectures (comma-separated).',
-      metavar='[all,ia32,x64,simarm,arm,simmips,mips,simarm64,arm64,]',
+      metavar='[all,ia32,x64,simarm,arm,armv5,simmips,mips,simarm64,arm64,]',
       default=utils.GuessArchitecture())
   result.add_option("--os",
     help='Target OSs (comma-separated).',
     metavar='[all,host,android]',
     default='host')
   result.add_option("-t", "--toolchain",
     help='Cross-compiler toolchain path',
     default=None)
   result.add_option("-j",
       help='The number of parallel jobs to run.',
@@ skipping 29 matching lines @@
   if options.os == 'all':
     options.os = 'host,android'
   options.mode = options.mode.split(',')
   options.arch = options.arch.split(',')
   options.os = options.os.split(',')
   for mode in options.mode:
     if not mode in ['debug', 'release']:
       print "Unknown mode %s" % mode
       return False
   for arch in options.arch:
-    archs = ['ia32', 'x64', 'simarm', 'arm', 'simmips', 'mips',
+    archs = ['ia32', 'x64', 'simarm', 'arm', 'armv5', 'simmips', 'mips',
              'simarm64', 'arm64',]
     if not arch in archs:
       print "Unknown arch %s" % arch
       return False
   options.os = [ProcessOsOption(os_name) for os_name in options.os]
   for os_name in options.os:
     if not os_name in ['android', 'freebsd', 'linux', 'macos', 'win32']:
       print "Unknown os %s" % os_name
       return False
     if os_name != HOST_OS:
       if os_name != 'android':
         print "Unsupported target os %s" % os_name
         return False
       if not HOST_OS in ['linux']:
         print ("Cross-compilation to %s is not supported on host os %s."
                % (os_name, HOST_OS))
         return False
-      if not arch in ['ia32', 'arm', 'arm64', 'mips']:
+      if not arch in ['ia32', 'arm', 'armv5', 'arm64', 'mips']:
         print ("Cross-compilation to %s is not supported for architecture %s."
                % (os_name, arch))
         return False
       # We have not yet tweaked the v8 dart build to work with the Android
       # NDK/SDK, so don't try to build it.
       if not args:
         print "For android builds you must specify a target, such as 'runtime'."
         return False
   return True
 
@@ skipping 418 matching lines @@
           else:
             if BuildOneConfig(options, target, target_os,
                               mode, arch, cross_build) != 0:
               return 1
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(Main())