[mips] Initial framework support for MIPS32

tools/cxx_wrapper.py

 #!/usr/bin/python
 
 # Copyright (c) 2015, the Dartino 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 os
 import sys
 import utils
 import subprocess
@@ skipping 66 matching lines @@
   os.execv(gcc_arm_embedded_bin, args)
 
 def invoke_gcc_local(args):
   if which("arm-eabi-g++") is not None:
     args.insert(0, "arm-eabi-g++")
     os.execvp("arm-eabi-g++", args)
   else:
     args.insert(0, "arm-none-eabi-g++")
     os.execvp("arm-none-eabi-g++", args)
 
+def invoke_gcc_mips(args):
+  args.insert(0, "mips-mti-linux-gnu-g++")
+  os.execvp("mips-mti-linux-gnu-g++", args)
+
 def main():
   args = sys.argv[1:]
   if "-L/DARTINO_ASAN" in args:
     args.remove("-L/DARTINO_ASAN")
     args.insert(0, '-fsanitize=address')
     if "-L/DARTINO_CLANG" in args:
       args.insert(0, '-fsanitize-undefined-trap-on-error')
   if "-DDARTINO_CLANG" in args:
     invoke_clang(args)
   elif "-L/DARTINO_CLANG" in args:
@@ skipping 17 matching lines @@
   elif "-DGCC_XARM_EMBEDDED" in args:
     invoke_gcc_arm_embedded(args)
   elif "-L/GCC_XARM_EMBEDDED" in args:
     args.remove("-L/GCC_XARM_EMBEDDED")
     invoke_gcc_arm_embedded(args)
   elif "-DGCC_XARM_LOCAL" in args:
     invoke_gcc_local(args)
   elif "-L/GCC_XARM_LOCAL" in args:
     args.remove("-L/GCC_XARM_LOCAL")
     invoke_gcc_local(args)
+  elif "-DDARTINO_MIPS" in args:
+    invoke_gcc_mips(args)
+  elif "-L/DARTINO_MIPS" in args:
+    args.remove("-L/DARTINO_MIPS")
+    invoke_gcc_mips(args)
   else:
     invoke_gcc(args)
 
 if __name__ == '__main__':
   main()