gdb/mi/mi-cmds.c

   1 /* MI Command Set for GDB, the GNU debugger.
   2
   3    Copyright (C) 2000, 2001, 2003, 2007, 2008 Free Software Foundation, Inc.
   4
   5    Contributed by Cygnus Solutions (a Red Hat company).
   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 #include "defs.h"
  23 #include "top.h"
  24 #include "mi-cmds.h"
  25 #include "gdb_string.h"
  26
  27 extern void _initialize_mi_cmds (void);
  28 struct mi_cmd;
  29 static struct mi_cmd **lookup_table (const char *command);
  30 static void build_table (struct mi_cmd *commands);
  31
  32
  33 struct mi_cmd mi_cmds[] =
  34 {
  35   { "break-after", { "ignore", 1 }, NULL, NULL },
  36   { "break-catch", { NULL, 0 }, NULL, NULL },
  37   { "break-commands", { NULL, 0 }, NULL, NULL },
  38   { "break-condition", { "cond", 1 }, NULL, NULL },
  39   { "break-delete", { "delete breakpoint", 1 }, NULL, NULL },
  40   { "break-disable", { "disable breakpoint", 1 }, NULL, NULL },
  41   { "break-enable", { "enable breakpoint", 1 }, NULL, NULL },
  42   { "break-info", { "info break", 1 }, NULL, NULL },
  43   { "break-insert", { NULL, 0 }, 0, mi_cmd_break_insert},
  44   { "break-list", { "info break", }, NULL, NULL },
  45   { "break-watch", { NULL, 0 }, 0, mi_cmd_break_watch},
  46   { "data-disassemble", { NULL, 0 }, 0, mi_cmd_disassemble},
  47   { "data-evaluate-expression", { NULL, 0 }, 0, mi_cmd_data_evaluate_expression},
  48   { "data-list-changed-registers", { NULL, 0 }, 0, mi_cmd_data_list_changed_registers},
  49   { "data-list-register-names", { NULL, 0 }, 0, mi_cmd_data_list_register_names},
  50   { "data-list-register-values", { NULL, 0 }, 0, mi_cmd_data_list_register_values},
  51   { "data-read-memory", { NULL, 0 }, 0, mi_cmd_data_read_memory},
  52   { "data-write-memory", { NULL, 0 }, 0, mi_cmd_data_write_memory},
  53   { "data-write-register-values", { NULL, 0 }, 0, mi_cmd_data_write_register_values},
  54   { "enable-timings", { NULL, 0 }, 0, mi_cmd_enable_timings},
  55   { "environment-cd", { NULL, 0 }, 0, mi_cmd_env_cd},
  56   { "environment-directory", { NULL, 0 }, 0, mi_cmd_env_dir},
  57   { "environment-path", { NULL, 0 }, 0, mi_cmd_env_path},
  58   { "environment-pwd", { NULL, 0 }, 0, mi_cmd_env_pwd},
  59   { "exec-abort", { NULL, 0 }, NULL, NULL },
  60   { "exec-arguments", { "set args", 1 }, NULL, NULL },
  61   { "exec-continue", { NULL, 0 }, mi_cmd_exec_continue},
  62   { "exec-finish", { NULL, 0 }, mi_cmd_exec_finish},
  63   { "exec-interrupt", { NULL, 0 }, mi_cmd_exec_interrupt},
  64   { "exec-next", { NULL, 0 }, mi_cmd_exec_next},
  65   { "exec-next-instruction", { NULL, 0 }, mi_cmd_exec_next_instruction},
  66   { "exec-return", { NULL, 0 }, mi_cmd_exec_return},
  67   { "exec-run", { NULL, 0 }, mi_cmd_exec_run},
  68   { "exec-show-arguments", { NULL, 0 }, NULL, NULL },
  69   { "exec-signal", { NULL, 0 }, NULL, NULL },
  70   { "exec-step", { NULL, 0 }, mi_cmd_exec_step},
  71   { "exec-step-instruction", { NULL, 0 }, mi_cmd_exec_step_instruction},
  72   { "exec-until", { NULL, 0 }, mi_cmd_exec_until},
  73   { "file-clear", { NULL, 0 }, NULL, NULL },
  74   { "file-exec-and-symbols", { "file", 1 }, NULL, NULL },
  75   { "file-exec-file", { "exec-file", 1 }, NULL, NULL },
  76   { "file-list-exec-sections", { NULL, 0 }, NULL, NULL },
  77   { "file-list-exec-source-file", { NULL, 0 }, 0, mi_cmd_file_list_exec_source_file},
  78   { "file-list-exec-source-files", { NULL, 0 }, NULL, mi_cmd_file_list_exec_source_files },
  79   { "file-list-shared-libraries", { NULL, 0 }, NULL, NULL },
  80   { "file-list-symbol-files", { NULL, 0 }, NULL, NULL },
  81   { "file-symbol-file", { "symbol-file", 1 }, NULL, NULL },
  82   { "gdb-complete", { NULL, 0 }, NULL, NULL },
  83   { "gdb-exit", { NULL, 0 }, 0, mi_cmd_gdb_exit},
  84   { "gdb-set", { "set", 1 }, NULL, NULL },
  85   { "gdb-show", { "show", 1 }, NULL, NULL },
  86   { "gdb-source", { NULL, 0 }, NULL, NULL },
  87   { "gdb-version", { "show version", 0 }, 0 },
  88   { "inferior-tty-set", { NULL, 0 }, NULL, mi_cmd_inferior_tty_set},
  89   { "inferior-tty-show", { NULL, 0 }, NULL, mi_cmd_inferior_tty_show},
  90   { "interpreter-exec", { NULL, 0 }, 0, mi_cmd_interpreter_exec},
  91   { "list-features", { NULL, 0 }, 0, mi_cmd_list_features},
  92   { "overlay-auto", { NULL, 0 }, NULL, NULL },
  93   { "overlay-list-mapping-state", { NULL, 0 }, NULL, NULL },
  94   { "overlay-list-overlays", { NULL, 0 }, NULL, NULL },
  95   { "overlay-map", { NULL, 0 }, NULL, NULL },
  96   { "overlay-off", { NULL, 0 }, NULL, NULL },
  97   { "overlay-on", { NULL, 0 }, NULL, NULL },
  98   { "overlay-unmap", { NULL, 0 }, NULL, NULL },
  99   { "signal-handle", { NULL, 0 }, NULL, NULL },
 100   { "signal-list-handle-actions", { NULL, 0 }, NULL, NULL },
 101   { "signal-list-signal-types", { NULL, 0 }, NULL, NULL },
 102   { "stack-info-depth", { NULL, 0 }, 0, mi_cmd_stack_info_depth},
 103   { "stack-info-frame", { NULL, 0 }, 0, mi_cmd_stack_info_frame},
 104   { "stack-list-arguments", { NULL, 0 }, 0, mi_cmd_stack_list_args},
 105   { "stack-list-exception-handlers", { NULL, 0 }, NULL, NULL },
 106   { "stack-list-frames", { NULL, 0 }, 0, mi_cmd_stack_list_frames},
 107   { "stack-list-locals", { NULL, 0 }, 0, mi_cmd_stack_list_locals},
 108   { "stack-select-frame", { NULL, 0 }, 0, mi_cmd_stack_select_frame},
 109   { "symbol-info-address", { NULL, 0 }, NULL, NULL },
 110   { "symbol-info-file", { NULL, 0 }, NULL, NULL },
 111   { "symbol-info-function", { NULL, 0 }, NULL, NULL },
 112   { "symbol-info-line", { NULL, 0 }, NULL, NULL },
 113   { "symbol-info-symbol", { NULL, 0 }, NULL, NULL },
 114   { "symbol-list-functions", { NULL, 0 }, NULL, NULL },
 115   { "symbol-list-lines", { NULL, 0 }, 0, mi_cmd_symbol_list_lines},
 116   { "symbol-list-types", { NULL, 0 }, NULL, NULL },
 117   { "symbol-list-variables", { NULL, 0 }, NULL, NULL },
 118   { "symbol-locate", { NULL, 0 }, NULL, NULL },
 119   { "symbol-type", { NULL, 0 }, NULL, NULL },
 120   { "target-attach", { NULL, 0 }, NULL, NULL },
 121   { "target-compare-sections", { NULL, 0 }, NULL, NULL },
 122   { "target-detach", { "detach", 0 }, 0 },
 123   { "target-disconnect", { "disconnect", 0 }, 0 },
 124   { "target-download", { NULL, 0 }, mi_cmd_target_download},
 125   { "target-exec-status", { NULL, 0 }, NULL, NULL },
 126   { "target-file-delete", { NULL, 0 }, NULL, mi_cmd_target_file_delete },
 127   { "target-file-get", { NULL, 0 }, NULL, mi_cmd_target_file_get },
 128   { "target-file-put", { NULL, 0 }, NULL, mi_cmd_target_file_put },
 129   { "target-list-available-targets", { NULL, 0 }, NULL, NULL },
 130   { "target-list-current-targets", { NULL, 0 }, NULL, NULL },
 131   { "target-list-parameters", { NULL, 0 }, NULL, NULL },
 132   { "target-select", { NULL, 0 }, mi_cmd_target_select},
 133   { "thread-info", { NULL, 0 }, NULL, mi_cmd_thread_info },
 134   { "thread-list-ids", { NULL, 0 }, 0, mi_cmd_thread_list_ids},
 135   { "thread-select", { NULL, 0 }, 0, mi_cmd_thread_select},
 136   { "trace-actions", { NULL, 0 }, NULL, NULL },
 137   { "trace-delete", { NULL, 0 }, NULL, NULL },
 138   { "trace-disable", { NULL, 0 }, NULL, NULL },
 139   { "trace-dump", { NULL, 0 }, NULL, NULL },
 140   { "trace-enable", { NULL, 0 }, NULL, NULL },
 141   { "trace-exists", { NULL, 0 }, NULL, NULL },
 142   { "trace-find", { NULL, 0 }, NULL, NULL },
 143   { "trace-frame-number", { NULL, 0 }, NULL, NULL },
 144   { "trace-info", { NULL, 0 }, NULL, NULL },
 145   { "trace-insert", { NULL, 0 }, NULL, NULL },
 146   { "trace-list", { NULL, 0 }, NULL, NULL },
 147   { "trace-pass-count", { NULL, 0 }, NULL, NULL },
 148   { "trace-save", { NULL, 0 }, NULL, NULL },
 149   { "trace-start", { NULL, 0 }, NULL, NULL },
 150   { "trace-stop", { NULL, 0 }, NULL, NULL },
 151   { "var-assign", { NULL, 0 }, 0, mi_cmd_var_assign},
 152   { "var-create", { NULL, 0 }, 0, mi_cmd_var_create},
 153   { "var-delete", { NULL, 0 }, 0, mi_cmd_var_delete},
 154   { "var-evaluate-expression", { NULL, 0 }, 0, mi_cmd_var_evaluate_expression},
 155   { "var-info-path-expression", { NULL, 0 }, 0,
 156     mi_cmd_var_info_path_expression},
 157   { "var-info-expression", { NULL, 0 }, 0, mi_cmd_var_info_expression},
 158   { "var-info-num-children", { NULL, 0 }, 0, mi_cmd_var_info_num_children},
 159   { "var-info-type", { NULL, 0 }, 0, mi_cmd_var_info_type},
 160   { "var-list-children", { NULL, 0 }, 0, mi_cmd_var_list_children},
 161   { "var-set-format", { NULL, 0 }, 0, mi_cmd_var_set_format},
 162   { "var-set-frozen", { NULL, 0 }, 0, mi_cmd_var_set_frozen},
 163   { "var-show-attributes", { NULL, 0 }, 0, mi_cmd_var_show_attributes},
 164   { "var-show-format", { NULL, 0 }, 0, mi_cmd_var_show_format},
 165   { "var-update", { NULL, 0 }, 0, mi_cmd_var_update},
 166   { NULL, }
 167 };
 168
 169 /* Pointer to the mi command table (built at run time) */
 170
 171 static struct mi_cmd **mi_table;
 172
 173 /* A prime large enough to accomodate the entire command table */
 174 enum
 175   {
 176     MI_TABLE_SIZE = 227
 177   };
 178
 179 /* Exported function used to obtain info from the table */
 180 struct mi_cmd *
 181 mi_lookup (const char *command)
 182 {
 183   return *lookup_table (command);
 184 }
 185
 186 /* stat collecting */
 187 struct mi_cmd_stats
 188 {
 189   int hit;
 190   int miss;
 191   int rehash;
 192 };
 193 struct mi_cmd_stats stats;
 194
 195 /* our lookup function */
 196 static struct mi_cmd **
 197 lookup_table (const char *command)
 198 {
 199   const char *chp;
 200   unsigned int index = 0;
 201   /* compute our hash */
 202   for (chp = command; *chp; chp++)
 203     {
 204       /* some what arbitrary */
 205       index = ((index << 6) + (unsigned int) *chp) % MI_TABLE_SIZE;
 206     }
 207   /* look it up */
 208   while (1)
 209     {
 210       struct mi_cmd **entry = &mi_table[index];
 211       if ((*entry) == 0)
 212         {
 213           /* not found, return pointer to next free. */
 214           stats.miss++;
 215           return entry;
 216         }
 217       if (strcmp (command, (*entry)->name) == 0)
 218         {
 219           stats.hit++;
 220           return entry;         /* found */
 221         }
 222       index = (index + 1) % MI_TABLE_SIZE;
 223       stats.rehash++;
 224     }
 225 }
 226
 227 static void
 228 build_table (struct mi_cmd *commands)
 229 {
 230   int nr_rehash = 0;
 231   int nr_entries = 0;
 232   struct mi_cmd *command;
 233   int sizeof_table = sizeof (struct mi_cmd **) * MI_TABLE_SIZE;
 234
 235   mi_table = xmalloc (sizeof_table);
 236   memset (mi_table, 0, sizeof_table);
 237   for (command = commands; command->name != 0; command++)
 238     {
 239       struct mi_cmd **entry = lookup_table (command->name);
 240       if (*entry)
 241         internal_error (__FILE__, __LINE__,
 242                         _("command `%s' appears to be duplicated"),
 243                         command->name);
 244       *entry = command;
 245       if (0)
 246         {
 247           fprintf_unfiltered (gdb_stdlog, "%-30s %2d\n",
 248                               command->name, stats.rehash - nr_rehash);
 249         }
 250       nr_entries++;
 251       nr_rehash = stats.rehash;
 252     }
 253   if (0)
 254     {
 255       fprintf_filtered (gdb_stdlog, "Average %3.1f\n",
 256                         (double) nr_rehash / (double) nr_entries);
 257     }
 258 }
 259
 260 void
 261 _initialize_mi_cmds (void)
 262 {
 263   build_table (mi_cmds);
 264   memset (&stats, 0, sizeof (stats));
 265 }