Line data    Source code

       1             : /* Return machine flag names.
       2             :    Copyright (C) 2001, 2002 Red Hat, Inc.
       3             :    This file is part of elfutils.
       4             :    Written by Ulrich Drepper <drepper@redhat.com>, 2001.
       5             : 
       6             :    This file is free software; you can redistribute it and/or modify
       7             :    it under the terms of either
       8             : 
       9             :      * the GNU Lesser General Public License as published by the Free
      10             :        Software Foundation; either version 3 of the License, or (at
      11             :        your option) any later version
      12             : 
      13             :    or
      14             : 
      15             :      * the GNU General Public License as published by the Free
      16             :        Software Foundation; either version 2 of the License, or (at
      17             :        your option) any later version
      18             : 
      19             :    or both in parallel, as here.
      20             : 
      21             :    elfutils is distributed in the hope that it will be useful, but
      22             :    WITHOUT ANY WARRANTY; without even the implied warranty of
      23             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      24             :    General Public License for more details.
      25             : 
      26             :    You should have received copies of the GNU General Public License and
      27             :    the GNU Lesser General Public License along with this program.  If
      28             :    not, see <http://www.gnu.org/licenses/>.  */
      29             : 
      30             : #ifdef HAVE_CONFIG_H
      31             : # include <config.h>
      32             : #endif
      33             : 
      34             : #include <stdio.h>
      35             : #include <string.h>
      36             : #include <system.h>
      37             : #include <libeblP.h>
      38             : 
      39             : 
      40             : const char *
      41          32 : ebl_machine_flag_name (Ebl *ebl, Elf64_Word flags, char *buf, size_t len)
      42             : {
      43             :   const char *res;
      44             : 
      45          32 :   if (flags == 0)
      46             :     res = "";
      47             :   else
      48             :     {
      49             :       char *cp = buf;
      50             :       int first = 1;
      51             :       const char *machstr;
      52             :       size_t machstrlen;
      53             : 
      54             :       do
      55             :         {
      56           2 :           if (! first)
      57             :             {
      58           0 :               if (cp + 1 >= buf + len)
      59             :                 break;
      60           0 :               *cp++ = ',';
      61             :             }
      62             : 
      63           2 :           machstr = ebl != NULL ? ebl->machine_flag_name (&flags) : NULL;
      64           2 :           if (machstr == NULL)
      65             :             {
      66             :               /* No more known flag.  */
      67           2 :               snprintf (cp, buf + len - cp, "%#x", flags);
      68             :               break;
      69             :             }
      70             : 
      71           0 :           machstrlen = strlen (machstr) + 1;
      72           0 :           if ((size_t) (buf + len - cp) < machstrlen)
      73             :             {
      74           0 :               *((char *) mempcpy (cp, machstr, buf + len - cp - 1)) = '\0';
      75           0 :               break;
      76             :             }
      77             : 
      78           0 :           cp = mempcpy (cp, machstr, machstrlen);
      79             : 
      80           0 :           first = 0;
      81             :         }
      82           0 :       while (flags != 0);
      83             : 
      84           2 :       res = buf;
      85             :     }
      86             : 
      87          32 :   return res;
      88             : }