Add load_firmware_test utility program

utility/dump_fmap.c

 /*
  * Copyright (c) 2010 The Chromium OS 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 <errno.h>
 #include <fcntl.h>
 #include <inttypes.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 
+#include "fmap.h"
+
 /* global variables */
 static int opt_extract = 0;
 static char *progname;
 static void *base_of_rom;
 
-/* FMAP structs. See http://code.google.com/p/flashmap/wiki/FmapSpec */
-#define FMAP_SIGLEN 8
-#define FMAP_NAMELEN 32
-#define FMAP_SEARCH_STRIDE 4
-typedef struct _FmapHeader {
-  char        fmap_signature[FMAP_SIGLEN]; /* avoiding endian issues */
-  uint8_t     fmap_ver_major;
-  uint8_t     fmap_ver_minor;
-  uint64_t    fmap_base;
-  uint32_t    fmap_size;
-  char        fmap_name[FMAP_NAMELEN];
-  uint16_t    fmap_nareas;
-} __attribute__((packed)) FmapHeader;
-
-typedef struct _AreaHeader {
-  uint32_t area_offset;
-  uint32_t area_size;
-  char     area_name[FMAP_NAMELEN];
-  uint16_t area_flags;
-} __attribute__((packed)) AreaHeader;
-
 
 /* Return 0 if successful */
 static int dump_fmap(void *ptr) {
   int i,retval = 0;
   char buf[80];                         // DWR: magic number
   FmapHeader *fmh = (FmapHeader *)ptr;
   AreaHeader *ah = (AreaHeader *)(ptr + sizeof(FmapHeader));
 
   snprintf(buf, FMAP_SIGLEN+1, "%s", fmh->fmap_signature);
   printf("fmap_signature   %s\n", buf);
@@ skipping 39 matching lines @@
   return retval;
 }
 
 
 int main(int argc, char *argv[]) {
   int c;
   int errorcnt = 0;
   struct stat sb;
   int fd;
   char *s;
-  size_t i;
   int retval = 1;
 
   progname = strrchr(argv[0], '/');
   if (progname)
     progname++;
   else
     progname = argv[0];
 
   opterr = 0;                     /* quiet, you */
   while ((c=getopt(argc, argv, ":x")) != -1) {
@@ skipping 49 matching lines @@
   if (base_of_rom == (char *)-1) {
     fprintf(stderr, "%s: can't mmap %s: %s\n",
             progname,
             argv[optind],
             strerror(errno));
     close(fd);
     return 1;
   }
   close(fd);                            /* done with this now */
 
-  s = (char *)base_of_rom;
-  for (i=0; i<sb.st_size; i += FMAP_SEARCH_STRIDE) {
-    if (0 == strncmp(s, "__FMAP__", 8)) {
-      printf("hit at 0x%08x\n", (uint32_t)i);
-      retval = dump_fmap(s);
-      break;
-    }
-    s += FMAP_SEARCH_STRIDE;
+  s = find_fmap((char *) base_of_rom, sb.st_size);

[gauravsh, 2011/02/09 19:58:22]

change variable name 's' to something more informative

[Che-Liang Chiou, 2011/02/10 09:11:03]

Done.

+  if (s) {
+    printf("hit at 0x%08x\n", (uint32_t) (s - (char *) base_of_rom));
+    retval = dump_fmap(s);
   }
 
   if (0 != munmap(base_of_rom, sb.st_size)) {
     fprintf(stderr, "%s: can't munmap %s: %s\n",
             progname,
             argv[optind],
             strerror(errno));
     return 1;
   }
 
   return retval;
 }