Add validation caching interface.

src/trusted/validator/x86/ncval_reg_sfi/ncvalidate_iter.h

 /*
  * Copyright (c) 2012 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.
  */
 
 #ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NCVALIDATE_ITER_H__
 #define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NCVALIDATE_ITER_H__
 
 /*
@@ skipping 355 matching lines @@
 void NaClValidatorTwoInstMessage(int level,
                                  NaClValidatorState* state,
                                  struct NaClInstState* inst1,
                                  struct NaClInstState* inst2,
                                  const char* format,
                                  ...) ATTRIBUTE_FORMAT_PRINTF(5, 6);
 
 /* Returns true if the validator should quit due to previous errors. */
 Bool NaClValidatorQuit(NaClValidatorState* state);
 
+/* Returns true if any code has been overwritten with halts. */
+Bool NaClValidatorDidStubOut(NaClValidatorState *vstate);
+
 #ifdef NCVAL_TESTING
 /* Defines the buffer and the corresponding buffer size to use for SNPRINTF,
  * given the current contents of the pre/post condition.
  */
 void NaClConditionAppend(char* condition,
                          char** buffer,
                          size_t* buffer_size);
 
 /* Prints out the address of the current instruction, and the pre/post
  * conditions associated with the current instruction.
  */
 void NaClPrintConditions(NaClValidatorState *state);
 #endif
 
 EXTERN_C_END
 
 #endif  /* NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_NCVAL_REG_SFI_NCVALIDATE_ITER_H__ */