Provide metadata to validator to allow faster caching.

src/trusted/service_runtime/nacl_text.h

 /*
  * Copyright (c) 2011 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_SERVICE_RUNTIME_NACL_TEXT_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_SERVICE_RUNTIME_NACL_TEXT_H_
 
 #include "native_client/src/include/portability.h"
 #include "native_client/src/include/nacl_compiler_annotations.h"
 #include "native_client/src/trusted/service_runtime/nacl_error_code.h"
 
 EXTERN_C_BEGIN
 
 struct NaClApp;
 struct NaClAppThread;
 
 struct NaClDynamicRegion {
   uintptr_t start;
   size_t size;
   int delete_generation;
 };
 
+struct NaClValidationMetadata;
+
 /*
  * Create a shared memory descriptor and map it into the text region
  * of the address space.  This implies that the text size must be a
  * multiple of NACL_MAP_PAGESIZE.
  */
 NaClErrorCode NaClMakeDynamicTextShared(struct NaClApp *nap) NACL_WUR;
 
 struct NaClDescEffectorShm;
 int NaClDescEffectorShmCtor(struct NaClDescEffectorShm *self) NACL_WUR;
 
 int NaClMinimumThreadGeneration(struct NaClApp *nap);
 
-int32_t NaClTextDyncodeCreate(struct NaClApp *nap,
-                              uint32_t       dest,
-                              void           *code_copy,
-                              uint32_t       size) NACL_WUR;
+int32_t NaClTextDyncodeCreate(
+    struct NaClApp *nap,
+    uint32_t       dest,
+    void           *code_copy,
+    uint32_t       size,
+    const struct NaClValidationMetadata *metadata) NACL_WUR;
 
 int32_t NaClSysDyncodeCreate(struct NaClAppThread *natp,
                              uint32_t             dest,
                              uint32_t             src,
                              uint32_t             size) NACL_WUR;
 
 int32_t NaClSysDyncodeModify(struct NaClAppThread *natp,
                              uint32_t             dest,
                              uint32_t             src,
                              uint32_t             size) NACL_WUR;
 
 int32_t NaClSysDyncodeDelete(struct NaClAppThread *natp,
                              uint32_t             dest,
                              uint32_t             size) NACL_WUR;
 
 EXTERN_C_END
 
 #endif