Enable check for DEP / NX page protection

src/trusted/platform_qualify/platform_qual_test.c

 /*
  * Copyright 2008 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can
  * be found in the LICENSE file.
  */
 
 /*
  * platform_qual_test.c
  *
  * Native Client Platform Qualification Test
  *
  * This uses shell status code to indicate its result; non-zero return
  * code indicates the CPUID instruction is not implemented or not
  * implemented correctly.
  */
 #include "native_client/src/include/portability.h"
 #include <stdio.h>
 #include "native_client/src/trusted/validator_x86/nacl_cpuid.h"
 #include "native_client/src/trusted/platform_qualify/nacl_cpuwhitelist.h"
+#include "native_client/src/trusted/platform_qualify/nacl_dep_qualify.h"
 #include "native_client/src/trusted/platform_qualify/nacl_os_qualify.h"
 #include "native_client/src/trusted/platform_qualify/vcpuid.h"
 
 int main() {
 
 /*
  * TODO(bradchen): need to fix vcpuid to use intrinsics rather than inline
  * assembly code. (Issue 440)
  */
 #if !(NACL_WINDOWS && NACL_BUILD_SUBARCH == 64)
   if (!CPUIDImplIsValid()) return -1;
   printf("CPUID implementation looks okay\n");
   if (NaCl_ThisCPUIsBlacklisted()) return -1;
   printf("CPU is not blacklisted\n");
 #endif
 
   /*
    * don't use the white list for now
    * if (NaCl_CPUIsWhitelisted() == 0) return -1;
    * printf("CPU is whitelisted\n");
    */
 
   if (NaClOsIsSupported() != 1) return -1;
   printf("OS is supported\n");
   if (NaClOsRestoresLdt() != 1) return -1;
   printf("OS restores LDT\n");
 
+  if (NaClCheckDEP() != 1) return -1;
+  printf("DEP is either working or not required\n");
+
   printf("platform_qual_test: PASS\n");
   return 0;
 }