git.gag.com Git - fw/altos/blob - ao-tools/ao-elftohex/ao-elftohex.c

   1 /*
   2  * Copyright © 2013 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 #include <getopt.h>
  20 #include <stdlib.h>
  21 #include <string.h>
  22 #include <unistd.h>
  23 #include "ao-hex.h"
  24 #include "ao-elf.h"
  25 #include "ao-verbose.h"
  26
  27 static const struct option options[] = {
  28         { .name = "verbose", .has_arg = 1, .val = 'v' },
  29         { .name = "output", .has_arg = 1, .val = 'o' },
  30         { 0, 0, 0, 0},
  31 };
  32
  33 static void usage(char *program)
  34 {
  35         fprintf(stderr, "usage: %s [--verbose=<level>] [--output=<output.ihx>] <input.elf>\n", program);
  36         exit(1);
  37 }
  38
  39 static int
  40 ends_with(char *whole, char *suffix)
  41 {
  42         int whole_len = strlen(whole);
  43         int suffix_len = strlen(suffix);
  44
  45         if (suffix_len > whole_len)
  46                 return 0;
  47         return strcmp(whole + whole_len - suffix_len, suffix) == 0;
  48 }
  49
  50 int
  51 main (int argc, char **argv)
  52 {
  53         char                    *input = NULL;
  54         char                    *output = NULL;
  55         struct ao_hex_image     *full_image = NULL;
  56         struct ao_sym           *file_symbols;
  57         int                     num_file_symbols;
  58         FILE                    *file;
  59         int                     c;
  60         int                     i;
  61
  62         while ((c = getopt_long(argc, argv, "v:o:", options, NULL)) != -1) {
  63                 switch (c) {
  64                 case 'o':
  65                         output = optarg;
  66                         break;
  67                 case 'v':
  68                         ao_verbose = (int) strtol(optarg, NULL, 0);
  69                         break;
  70                 default:
  71                         usage(argv[0]);
  72                         break;
  73                 }
  74         }
  75
  76         if (optind >= argc)
  77                 usage(argv[0]);
  78
  79         for (i = optind; i < argc; i++) {
  80                 struct ao_hex_image *image;
  81
  82                 input = argv[i];
  83
  84                 if (ends_with (input, ".ihx"))
  85                         image = ao_hex_load(input, &file_symbols, &num_file_symbols);
  86                 else
  87                         image = ao_load_elf(input, &file_symbols, &num_file_symbols);
  88
  89                 if (!image) {
  90                         fprintf(stderr, "Failed to load %s\n", input);
  91                         usage(argv[0]);
  92                 }
  93
  94                 if (full_image) {
  95                         full_image = ao_hex_image_cat(full_image, image);
  96                         if (!full_image) {
  97                                 fprintf(stderr, "Can't merge image %s\n", input);
  98                                 usage(argv[0]);
  99                         }
 100                 } else
 101                         full_image = image;
 102         }
 103
 104         if (!output)
 105                 file = stdout;
 106         else {
 107                 file = fopen(output, "w");
 108                 if (!file) {
 109                         perror(output);
 110                         exit(1);
 111                 }
 112         }
 113
 114         if (!ao_hex_save(file, full_image, file_symbols, num_file_symbols)) {
 115                 fprintf(stderr, "%s: failed to write hex file\n", output ? output : "<stdout>");
 116                 if (output)
 117                         unlink(output);
 118                 exit(1);
 119         }
 120         exit(0);
 121 }