Add ragel machine generators to SCONS

src/trusted/validator_ragel/unreviewed/validator-test.c

 /*
  * 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.
  */
 
 #include <assert.h>
-#include <elf.h>
-#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "validator.h"
+
+#include "native_client/src/include/elf32.h"
+#include "native_client/src/include/elf64.h"
+#include "native_client/src/trusted/validator_ragel/unreviewed/validator.h"
 
 #undef TRUE
 #define TRUE    1
 
 #undef FALSE
 #define FALSE   0
 
-/* This may help with portability but makes code less readable.  */
-#pragma GCC diagnostic ignored "-Wdeclaration-after-statement"
+#ifdef __GNUC__
+/* We only use argyuments in assert(3) and that generates warnings in release
+   mode.  */
+#pragma GCC diagnostic ignored "-Wunused-parameter"
+#endif
 
 static void CheckBounds(unsigned char *data, size_t data_size,
                         void *ptr, size_t inside_size) {
   assert(data <= (unsigned char *) ptr);
   assert((unsigned char *) ptr + inside_size <= data + data_size);
 }
 
-void ReadFile(const char *filename, uint8_t **result, size_t *result_size) {
+void ReadImage(const char *filename, uint8_t **result, size_t *result_size) {
   FILE *fp;
   uint8_t *data;
   size_t file_size;
   size_t got;
 
   fp = fopen(filename, "rb");
   if (fp == NULL) {
     fprintf(stderr, "Failed to open input file: %s\n", filename);
     exit(1);
   }
@@ skipping 18 matching lines @@
   *result = data;
   *result_size = file_size;
 }
 
 struct ValidateState {
   uint8_t width;
   const uint8_t *offset;
 };
 
 void ProcessError (const uint8_t *ptr, void *userdata) {
-  printf("offset 0x%zx: DFA error in validator\n",
-         ptr - (((struct ValidateState *)userdata)->offset));
+  printf("offset 0x%"NACL_PRIxS": DFA error in validator\n",
+                            ptr - (((struct ValidateState *)userdata)->offset));
 }
 
 int ValidateFile(const char *filename, int repeat_count) {
   size_t data_size;
   uint8_t *data;
-  ReadFile(filename, &data, &data_size);
+  int count;
 
-  int count;
+  ReadImage(filename, &data, &data_size);
+
   if (data[4] == 1) {
     for (count = 0; count < repeat_count; ++count) {
       Elf32_Ehdr *header;
       int index;
 
       header = (Elf32_Ehdr *) data;
       CheckBounds(data, data_size, header, sizeof(*header));
       assert(memcmp(header->e_ident, ELFMAG, strlen(ELFMAG)) == 0);
 
       for (index = 0; index < header->e_shnum; ++index) {
         Elf32_Shdr *section = (Elf32_Shdr *) (data + header->e_shoff +
                                                    header->e_shentsize * index);
         CheckBounds(data, data_size, section, sizeof(*section));
 
         if ((section->sh_flags & SHF_EXECINSTR) != 0) {
           struct ValidateState state;
+          int res;
+
           state.offset = data + section->sh_offset - section->sh_addr;
           if (section->sh_size <= 0xfff) {
             state.width = 4;
           } else if (section->sh_size <= 0xfffffff) {
             state.width = 8;
           } else {
             state.width = 12;
           }
           CheckBounds(data, data_size,
                       data + section->sh_offset, section->sh_size);
-          int res = ValidateChunkIA32(data + section->sh_offset,
+          res = ValidateChunkIA32(data + section->sh_offset,
                                         section->sh_size, ProcessError, &state);
           if (res != 0) {
             return res;
           }
         }
       }
     }
   } else if (data[4] == 2) {
     for (count = 0; count < repeat_count; ++count) {
       Elf64_Ehdr *header;
       int index;
 
       header = (Elf64_Ehdr *) data;
       CheckBounds(data, data_size, header, sizeof(*header));
       assert(memcmp(header->e_ident, ELFMAG, strlen(ELFMAG)) == 0);
 
       for (index = 0; index < header->e_shnum; ++index) {
         Elf64_Shdr *section = (Elf64_Shdr *) (data + header->e_shoff +
                                                    header->e_shentsize * index);
         CheckBounds(data, data_size, section, sizeof(*section));
 
         if ((section->sh_flags & SHF_EXECINSTR) != 0) {
           struct ValidateState state;
+          int res;
+
           state.offset = data + section->sh_offset - section->sh_addr;
           if (section->sh_size <= 0xfff) {
             state.width = 4;
           } else if (section->sh_size <= 0xfffffff) {
             state.width = 8;
           } else if (section->sh_size <= 0xfffffffffffLL) {
             state.width = 12;
           } else {
             state.width = 16;
           }
           CheckBounds(data, data_size,
                       data + section->sh_offset, section->sh_size);
-          int res = ValidateChunkAMD64(data + section->sh_offset,
+          res = ValidateChunkAMD64(data + section->sh_offset,
                                         section->sh_size, ProcessError, &state);
           if (res != 0) {
             return res;
           }
         }
       }
     }
   } else {
     printf("Unknown ELF class: %s\n", filename);
     exit(1);
@@ skipping 12 matching lines @@
   for (index = initial_index; index < argc; ++index) {
     const char *filename = argv[index];
     int rc = ValidateFile(filename, repeat_count);
     if (rc != 0) {
       printf("file '%s' can not be fully validated\n", filename);
       return 1;
     }
   }
   return 0;
 }