sim/igen/ld-cache.c

   1 /* The IGEN simulator generator for GDB, the GNU Debugger.
   2
   3    Copyright 2002-2024 Free Software Foundation, Inc.
   4
   5    Contributed by Andrew Cagney.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22
  23
  24 #include "misc.h"
  25 #include "lf.h"
  26 #include "table.h"
  27 #include "filter.h"
  28 #include "igen.h"
  29
  30 #include "ld-insn.h"
  31 #include "ld-cache.h"
  32
  33
  34 enum
  35 {
  36   ca_type,
  37   ca_field_name,
  38   ca_derived_name,
  39   ca_type_def,
  40   ca_expression,
  41   nr_cache_rule_fields,
  42 };
  43
  44 static const name_map cache_type_map[] = {
  45   {"cache", cache_value},
  46   {"compute", compute_value},
  47   {"scratch", scratch_value},
  48   {NULL, 0},
  49 };
  50
  51
  52 cache_entry *
  53 load_cache_table (const char *file_name)
  54 {
  55   cache_entry *cache = NULL;
  56   cache_entry **last = &cache;
  57   table *file = table_open (file_name);
  58   table_entry *entry;
  59   while ((entry = table_read (file)) != NULL)
  60     {
  61       cache_entry *new_rule = ZALLOC (cache_entry);
  62       new_rule->line = entry->line;
  63       new_rule->entry_type = name2i (entry->field[ca_type], cache_type_map);
  64       new_rule->name = entry->field[ca_derived_name];
  65       filter_parse (&new_rule->original_fields, entry->field[ca_field_name]);
  66       new_rule->type = entry->field[ca_type_def];
  67       /* expression is the concatenation of the remaining fields */
  68       if (entry->nr_fields > ca_expression)
  69         {
  70           int len = 0;
  71           int chi;
  72           for (chi = ca_expression; chi < entry->nr_fields; chi++)
  73             {
  74               len += strlen (" : ") + strlen (entry->field[chi]);
  75             }
  76           new_rule->expression = NZALLOC (char, len);
  77           strcpy (new_rule->expression, entry->field[ca_expression]);
  78           for (chi = ca_expression + 1; chi < entry->nr_fields; chi++)
  79             {
  80               strcat (new_rule->expression, " : ");
  81               strcat (new_rule->expression, entry->field[chi]);
  82             }
  83         }
  84       /* insert it */
  85       *last = new_rule;
  86       last = &new_rule->next;
  87     }
  88   return cache;
  89 }
  90
  91
  92
  93 #ifdef MAIN
  94
  95 igen_options options;
  96
  97 int
  98 main (int argc, char **argv)
  99 {
 100   cache_entry *rules = NULL;
 101   lf *l;
 102
 103   if (argc != 2)
 104     error (NULL, "Usage: cache <cache-file>\n");
 105
 106   rules = load_cache_table (argv[1]);
 107   l = lf_open ("-", "stdout", lf_omit_references, lf_is_text, "tmp-ld-insn");
 108   dump_cache_entries (l, "(", rules, ")\n");
 109
 110   return 0;
 111 }
 112 #endif