gcc/gcov-iov.c

   1 /* Generate gcov version string from version.c. See gcov-io.h for
   2    description of how the version string is generated.
   3    Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
   4    Contributed by Nathan Sidwell <nathan@codesourcery.com>
   5
   6 This file is part of GCC.
   7
   8 GCC is free software; you can redistribute it and/or modify it under
   9 the terms of the GNU General Public License as published by the Free
  10 Software Foundation; either version 2, or (at your option) any later
  11 version.
  12
  13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 for more details.
  17
  18 You should have received a copy of the GNU General Public License
  19 along with GCC; see the file COPYING.  If not, write to the Free
  20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  21 02111-1307, USA.  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25
  26 /* Command line arguments are the base GCC version and the development
  27    phase (the latter may be an empty string).  */
  28
  29 int
  30 main (int argc, char **argv)
  31 {
  32   unsigned int version = 0;
  33   unsigned char v[4];
  34   unsigned int ix;
  35   unsigned long major;
  36   unsigned long minor = 0;
  37   char phase = 0;
  38   char *ptr;
  39
  40   if (argc != 3)
  41     {
  42       fprintf (stderr, "usage: %s 'version' 'phase'\n", argv[0]);
  43       return 1;
  44     }
  45
  46   ptr = argv[1];
  47   major = strtoul (ptr, &ptr, 10);
  48
  49   if (*ptr == '.')
  50     minor = strtoul (ptr + 1, 0, 10);
  51
  52   phase = argv[2][0];
  53   if (phase == '\0')
  54     phase = '*';
  55
  56   v[0] = (major < 10 ? '0' : 'A' - 10) + major;
  57   v[1] = (minor / 10) + '0';
  58   v[2] = (minor % 10) + '0';
  59   v[3] = phase;
  60
  61   for (ix = 0; ix != 4; ix++)
  62     version = (version << 8) | v[ix];
  63
  64   printf ("/* Generated automatically by the program `%s'\n", argv[0]);
  65   printf ("   from `%s (%lu %lu) and %s (%c)'.  */\n",
  66           argv[1], major, minor, argv[2], phase);
  67   printf ("\n");
  68   printf ("#define GCOV_VERSION ((gcov_unsigned_t)%#08x)  /* %.4s */\n",
  69           version, v);
  70
  71   return 0;
  72 }