Branch data     Line data    Source code

       1                 :            : /* Enumerate DWARF register numbers and their names.
       2                 :            :    Copyright (C) 2005, 2006 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            : 
       5                 :            :    This file is free software; you can redistribute it and/or modify
       6                 :            :    it under the terms of either
       7                 :            : 
       8                 :            :      * the GNU Lesser General Public License as published by the Free
       9                 :            :        Software Foundation; either version 3 of the License, or (at
      10                 :            :        your option) any later version
      11                 :            : 
      12                 :            :    or
      13                 :            : 
      14                 :            :      * the GNU General Public License as published by the Free
      15                 :            :        Software Foundation; either version 2 of the License, or (at
      16                 :            :        your option) any later version
      17                 :            : 
      18                 :            :    or both in parallel, as here.
      19                 :            : 
      20                 :            :    elfutils is distributed in the hope that it will be useful, but
      21                 :            :    WITHOUT ANY WARRANTY; without even the implied warranty of
      22                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      23                 :            :    General Public License for more details.
      24                 :            : 
      25                 :            :    You should have received copies of the GNU General Public License and
      26                 :            :    the GNU Lesser General Public License along with this program.  If
      27                 :            :    not, see <http://www.gnu.org/licenses/>.  */
      28                 :            : 
      29                 :            : #include "libdwflP.h"
      30                 :            : 
      31                 :            : 
      32                 :            : int
      33                 :         14 : dwfl_module_register_names (mod, func, arg)
      34                 :            :      Dwfl_Module *mod;
      35                 :            :      int (*func) (void *, int regno, const char *setname,
      36                 :            :                   const char *prefix, const char *regname,
      37                 :            :                   int bits, int type);
      38                 :            :      void *arg;
      39                 :            : {
      40         [ +  - ]:         14 :   if (unlikely (mod == NULL))
      41                 :            :     return -1;
      42                 :            : 
      43         [ +  + ]:         14 :   if (unlikely (mod->ebl == NULL))
      44                 :            :     {
      45                 :         11 :       Dwfl_Error error = __libdwfl_module_getebl (mod);
      46         [ -  + ]:         11 :       if (error != DWFL_E_NOERROR)
      47                 :            :         {
      48                 :          0 :           __libdwfl_seterrno (error);
      49                 :          0 :           return -1;
      50                 :            :         }
      51                 :            :     }
      52                 :            : 
      53                 :         14 :   int nregs = ebl_register_info (mod->ebl, -1, NULL, 0,
      54                 :            :                                  NULL, NULL, NULL, NULL);
      55                 :         14 :   int result = 0;
      56 [ +  + ][ +  - ]:       3382 :   for (int regno = 0; regno < nregs && likely (result == 0); ++regno)
      57                 :            :     {
      58                 :            :       char name[32];
      59                 :       3368 :       const char *setname = NULL;
      60                 :       3368 :       const char *prefix = NULL;
      61                 :       3368 :       int bits = -1;
      62                 :       3368 :       int type = -1;
      63                 :       3368 :       ssize_t len = ebl_register_info (mod->ebl, regno, name, sizeof name,
      64                 :            :                                        &prefix, &setname, &bits, &type);
      65         [ -  + ]:       3368 :       if (unlikely (len < 0))
      66                 :            :         {
      67                 :          0 :           __libdwfl_seterrno (DWFL_E_LIBEBL);
      68                 :          0 :           result = -1;
      69                 :            :           break;
      70                 :            :         }
      71         [ +  + ]:       3368 :       if (likely (len > 0))
      72                 :            :         {
      73         [ -  + ]:       2814 :           assert (len > 1);  /* Backend should never yield "".  */
      74                 :       2814 :           result = (*func) (arg, regno, setname, prefix, name, bits, type);
      75                 :            :         }
      76                 :            :     }
      77                 :            : 
      78                 :         14 :   return result;
      79                 :            : }