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      1 /* Register names and numbers for TILE-Gx DWARF.
      2    Copyright (C) 2012 Tilera Corporation
      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 #ifdef HAVE_CONFIG_H
     30 # include <config.h>
     31 #endif
     32 
     33 #include <stdio.h>
     34 #include <string.h>
     35 #include <dwarf.h>
     36 
     37 #define BACKEND tilegx_
     38 #include "libebl_CPU.h"
     39 
     40 ssize_t
     41 tilegx_register_info (Ebl *ebl __attribute__ ((unused)),
     42 		    int regno, char *name, size_t namelen,
     43 		    const char **prefix, const char **setname,
     44 		    int *bits, int *type)
     45 {
     46   if (name == NULL)
     47     return 65;
     48 
     49   if (regno < 0 || regno > 64 || namelen < 5)
     50     return -1;
     51 
     52   *prefix = "";
     53   *setname = "integer";
     54   *bits = 64;
     55 
     56   switch (regno)
     57     {
     58     case 0 ... 9:
     59       *type = DW_ATE_signed;
     60       name[0] = 'r';
     61       name[1] = regno + '0';
     62       namelen = 2;
     63       break;
     64 
     65     case 10 ... 52:
     66       *type = DW_ATE_signed;
     67       name[0] = 'r';
     68       name[1] = regno / 10 + '0';
     69       name[2] = regno % 10 + '0';
     70       namelen = 3;
     71       break;
     72 
     73     case 53:
     74       *type = DW_ATE_address;
     75       return stpcpy (name, "tp") + 1 - name;
     76 
     77     case 54:
     78       *type = DW_ATE_address;
     79       return stpcpy (name, "sp") + 1 - name;
     80 
     81     case 55:
     82       *type = DW_ATE_address;
     83       return stpcpy (name, "lr") + 1 - name;
     84 
     85     case 56:
     86       *type = DW_ATE_unsigned;
     87       return stpcpy (name, "sn") + 1 - name;
     88 
     89     case 57:
     90       *type = DW_ATE_unsigned;
     91       return stpcpy (name, "idn0") + 1 - name;
     92 
     93     case 58:
     94       *type = DW_ATE_unsigned;
     95       return stpcpy (name, "idn1") + 1 - name;
     96 
     97     case 59:
     98       *type = DW_ATE_unsigned;
     99       return stpcpy (name, "udn0") + 1 - name;
    100 
    101     case 60:
    102       *type = DW_ATE_unsigned;
    103       return stpcpy (name, "udn1") + 1 - name;
    104 
    105     case 61:
    106       *type = DW_ATE_unsigned;
    107       return stpcpy (name, "udn2") + 1 - name;
    108 
    109     case 62:
    110       *type = DW_ATE_unsigned;
    111       return stpcpy (name, "udn3") + 1 - name;
    112 
    113     case 63:
    114       *type = DW_ATE_unsigned;
    115       return stpcpy (name, "zero") + 1 - name;
    116 
    117     case 64:
    118       *type = DW_ATE_address;
    119       return stpcpy (name, "pc") + 1 - name;
    120 
    121     /* Can't happen.  */
    122     default:
    123       *setname = NULL;
    124       return 0;
    125     }
    126 
    127   name[namelen++] = '\0';
    128   return namelen;
    129 }
    130