first step in factoring out code dealing with elf into a separate library....

src/trusted/service_runtime/web_worker_stub.c

 /*
  * Copyright 2008, Google Inc.
  * 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.
@@ skipping 148 matching lines @@
    * Ensure this operating system platform is supported.
    */
   if (!NaClOsIsSupported()) {
     goto done;
   }
   /*
    * Load the NaCl module from the memory file.
    */
   if (LOAD_OK != NaClAppLoadFile((struct Gio *) &gf,
                                  *nap,
-                                 NACL_ABI_MISMATCH_OPTION_ABORT)) {
+                                 NACL_ABI_CHECK_OPTION_CHECK)) {
     goto done;
   }
   /*
    * Close the memory pseudo-file used for passing in the .nexe.
    */
   if ((*((struct Gio *) &gf)->vtbl->Close)((struct Gio *) &gf) == -1) {
     goto done;
   }
   (*((struct Gio *) &gf)->vtbl->Dtor)((struct Gio *) &gf);
 
@@ skipping 270 matching lines @@
 }
 
 /*
  * Part of the initialization of a worker.  Sends the descriptor to the
  * worker library to indicate where to send postMessage RPCs.
  */
 int NaClSrpcSendUpcallDesc(struct NaClSrpcChannel *channel,
                            struct NaClDesc *nacl_desc) {
   return NaClSrpcInvokeByName(channel, "setUpcallDesc", nacl_desc);
 }