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

src/trusted/service_runtime/mmap_test.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 91 matching lines @@
   NaClLogSetVerbosity((NULL == nacl_verbosity)
                       ? 0
                       : strtol(nacl_verbosity, (char **) 0, 0));
 
   errcode = GioMemoryFileSnapshotCtor(&gf, nacl_file);
   ASSERT_NE(errcode, 0);
   errcode = NaClAppCtor(&state);
   ASSERT_NE(errcode, 0);
   errcode = NaClAppLoadFile((struct Gio *) &gf,
                             &state,
-                            NACL_ABI_MISMATCH_OPTION_ABORT);
+                            NACL_ABI_CHECK_OPTION_CHECK);
   ASSERT_EQ(errcode, 0);
 
   InitThread(&state, natp);
 
   /* Allocate range */
   addr = NaClSysMmap(natp, 0, 3 * NACL_MAP_PAGESIZE,
                      NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
                      NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE,
                      -1, 0);
   printf("addr=0x%"PRIxPTR"\n", addr);
@@ skipping 114 matching lines @@
                      NACL_ABI_PROT_READ | NACL_ABI_PROT_WRITE,
                      NACL_ABI_MAP_ANONYMOUS | NACL_ABI_MAP_PRIVATE, -1, 0);
   ASSERT_EQ((int) addr, -NACL_ABI_EINVAL);
 
   errcode = NaClSysMunmap(natp, (void *) initial_addr, 0);
   ASSERT_EQ(errcode, -NACL_ABI_EINVAL);
 
   printf("PASS\n");
   return 0;
 }