gdb/mi/mi-cmds.c

   1 /* MI Command Set for GDB, the GNU debugger.
   2    Copyright (C) 2000-2001, 2003, 2007-2012 Free Software Foundation,
   3    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 #include "mi-main.h"
  27
  28 extern void _initialize_mi_cmds (void);
  29
  30 struct mi_cmd;
  31 static struct mi_cmd **lookup_table (const char *command);
  32 static void build_table (struct mi_cmd *commands);
  33
  34 static struct mi_cmd mi_cmds[] =
  35 {
  36 /* Define a MI command of NAME, and its corresponding CLI command is
  37    CLI_NAME.  */
  38 #define DEF_MI_CMD_CLI_1(NAME, CLI_NAME, ARGS_P, CALLED)        \
  39   { NAME, { CLI_NAME, ARGS_P}, NULL, CALLED }
  40 #define DEF_MI_CMD_CLI(NAME, CLI_NAME, ARGS_P) \
  41   DEF_MI_CMD_CLI_1(NAME, CLI_NAME, ARGS_P, NULL)
  42
  43 /* Define a MI command of NAME, and implemented by function MI_FUNC.  */
  44 #define DEF_MI_CMD_MI_1(NAME, MI_FUNC, CALLED) \
  45   { NAME, {NULL, 0}, MI_FUNC, CALLED }
  46 #define DEF_MI_CMD_MI(NAME, MI_FUNC) DEF_MI_CMD_MI_1(NAME, MI_FUNC, NULL)
  47
  48   DEF_MI_CMD_MI ("ada-task-info", mi_cmd_ada_task_info),
  49   DEF_MI_CMD_MI ("add-inferior", mi_cmd_add_inferior),
  50   DEF_MI_CMD_CLI_1 ("break-after", "ignore", 1,
  51                     &mi_suppress_notification.breakpoint),
  52   DEF_MI_CMD_CLI_1 ("break-condition","cond", 1,
  53                   &mi_suppress_notification.breakpoint),
  54   DEF_MI_CMD_MI_1 ("break-commands", mi_cmd_break_commands,
  55                    &mi_suppress_notification.breakpoint),
  56   DEF_MI_CMD_CLI_1 ("break-delete", "delete breakpoint", 1,
  57                     &mi_suppress_notification.breakpoint),
  58   DEF_MI_CMD_CLI_1 ("break-disable", "disable breakpoint", 1,
  59                     &mi_suppress_notification.breakpoint),
  60   DEF_MI_CMD_CLI_1 ("break-enable", "enable breakpoint", 1,
  61                      &mi_suppress_notification.breakpoint),
  62   DEF_MI_CMD_CLI ("break-info", "info break", 1),
  63   DEF_MI_CMD_MI_1 ("break-insert", mi_cmd_break_insert,
  64                    &mi_suppress_notification.breakpoint),
  65   DEF_MI_CMD_CLI ("break-list", "info break", 0),
  66   DEF_MI_CMD_MI_1 ("break-passcount", mi_cmd_break_passcount,
  67                    &mi_suppress_notification.breakpoint),
  68   DEF_MI_CMD_MI_1 ("break-watch", mi_cmd_break_watch,
  69                    &mi_suppress_notification.breakpoint),
  70   DEF_MI_CMD_MI ("data-disassemble", mi_cmd_disassemble),
  71   DEF_MI_CMD_MI ("data-evaluate-expression", mi_cmd_data_evaluate_expression),
  72   DEF_MI_CMD_MI ("data-list-changed-registers",
  73                  mi_cmd_data_list_changed_registers),
  74   DEF_MI_CMD_MI ("data-list-register-names", mi_cmd_data_list_register_names),
  75   DEF_MI_CMD_MI ("data-list-register-values", mi_cmd_data_list_register_values),
  76   DEF_MI_CMD_MI ("data-read-memory", mi_cmd_data_read_memory),
  77   DEF_MI_CMD_MI ("data-read-memory-bytes", mi_cmd_data_read_memory_bytes),
  78   DEF_MI_CMD_MI ("data-write-memory", mi_cmd_data_write_memory),
  79   DEF_MI_CMD_MI ("data-write-memory-bytes", mi_cmd_data_write_memory_bytes),
  80   DEF_MI_CMD_MI ("data-write-register-values",
  81                  mi_cmd_data_write_register_values),
  82   DEF_MI_CMD_MI ("enable-timings", mi_cmd_enable_timings),
  83   DEF_MI_CMD_MI ("enable-pretty-printing", mi_cmd_enable_pretty_printing),
  84   DEF_MI_CMD_MI ("environment-cd", mi_cmd_env_cd),
  85   DEF_MI_CMD_MI ("environment-directory", mi_cmd_env_dir),
  86   DEF_MI_CMD_MI ("environment-path", mi_cmd_env_path),
  87   DEF_MI_CMD_MI ("environment-pwd", mi_cmd_env_pwd),
  88   DEF_MI_CMD_CLI ("exec-arguments", "set args", 1),
  89   DEF_MI_CMD_MI ("exec-continue", mi_cmd_exec_continue),
  90   DEF_MI_CMD_MI ("exec-finish", mi_cmd_exec_finish),
  91   DEF_MI_CMD_MI ("exec-jump", mi_cmd_exec_jump),
  92   DEF_MI_CMD_MI ("exec-interrupt", mi_cmd_exec_interrupt),
  93   DEF_MI_CMD_MI ("exec-next", mi_cmd_exec_next),
  94   DEF_MI_CMD_MI ("exec-next-instruction", mi_cmd_exec_next_instruction),
  95   DEF_MI_CMD_MI ("exec-return", mi_cmd_exec_return),
  96   DEF_MI_CMD_MI ("exec-run", mi_cmd_exec_run),
  97   DEF_MI_CMD_MI ("exec-step", mi_cmd_exec_step),
  98   DEF_MI_CMD_MI ("exec-step-instruction", mi_cmd_exec_step_instruction),
  99   DEF_MI_CMD_CLI ("exec-until", "until", 1),
 100   DEF_MI_CMD_CLI ("file-exec-and-symbols", "file", 1),
 101   DEF_MI_CMD_CLI ("file-exec-file", "exec-file", 1),
 102   DEF_MI_CMD_MI ("file-list-exec-source-file",
 103                  mi_cmd_file_list_exec_source_file),
 104   DEF_MI_CMD_MI ("file-list-exec-source-files",
 105                  mi_cmd_file_list_exec_source_files),
 106   DEF_MI_CMD_CLI ("file-symbol-file", "symbol-file", 1),
 107   DEF_MI_CMD_MI ("gdb-exit", mi_cmd_gdb_exit),
 108   DEF_MI_CMD_CLI_1 ("gdb-set", "set", 1,
 109                     &mi_suppress_notification.cmd_param_changed),
 110   DEF_MI_CMD_CLI ("gdb-show", "show", 1),
 111   DEF_MI_CMD_CLI ("gdb-version", "show version", 0),
 112   DEF_MI_CMD_MI ("inferior-tty-set", mi_cmd_inferior_tty_set),
 113   DEF_MI_CMD_MI ("inferior-tty-show", mi_cmd_inferior_tty_show),
 114   DEF_MI_CMD_MI ("info-os", mi_cmd_info_os),
 115   DEF_MI_CMD_MI ("interpreter-exec", mi_cmd_interpreter_exec),
 116   DEF_MI_CMD_MI ("list-features", mi_cmd_list_features),
 117   DEF_MI_CMD_MI ("list-target-features", mi_cmd_list_target_features),
 118   DEF_MI_CMD_MI ("list-thread-groups", mi_cmd_list_thread_groups),
 119   DEF_MI_CMD_MI ("remove-inferior", mi_cmd_remove_inferior),
 120   DEF_MI_CMD_MI ("stack-info-depth", mi_cmd_stack_info_depth),
 121   DEF_MI_CMD_MI ("stack-info-frame", mi_cmd_stack_info_frame),
 122   DEF_MI_CMD_MI ("stack-list-arguments", mi_cmd_stack_list_args),
 123   DEF_MI_CMD_MI ("stack-list-frames", mi_cmd_stack_list_frames),
 124   DEF_MI_CMD_MI ("stack-list-locals", mi_cmd_stack_list_locals),
 125   DEF_MI_CMD_MI ("stack-list-variables", mi_cmd_stack_list_variables),
 126   DEF_MI_CMD_MI ("stack-select-frame", mi_cmd_stack_select_frame),
 127   DEF_MI_CMD_MI ("symbol-list-lines", mi_cmd_symbol_list_lines),
 128   DEF_MI_CMD_CLI ("target-attach", "attach", 1),
 129   DEF_MI_CMD_MI ("target-detach", mi_cmd_target_detach),
 130   DEF_MI_CMD_CLI ("target-disconnect", "disconnect", 0),
 131   DEF_MI_CMD_CLI ("target-download", "load", 1),
 132   DEF_MI_CMD_MI ("target-file-delete", mi_cmd_target_file_delete),
 133   DEF_MI_CMD_MI ("target-file-get", mi_cmd_target_file_get),
 134   DEF_MI_CMD_MI ("target-file-put", mi_cmd_target_file_put),
 135   DEF_MI_CMD_CLI ("target-select", "target", 1),
 136   DEF_MI_CMD_MI ("thread-info", mi_cmd_thread_info),
 137   DEF_MI_CMD_MI ("thread-list-ids", mi_cmd_thread_list_ids),
 138   DEF_MI_CMD_MI ("thread-select", mi_cmd_thread_select),
 139   DEF_MI_CMD_MI ("trace-define-variable", mi_cmd_trace_define_variable),
 140   DEF_MI_CMD_MI_1 ("trace-find", mi_cmd_trace_find,
 141                    &mi_suppress_notification.traceframe),
 142   DEF_MI_CMD_MI ("trace-list-variables", mi_cmd_trace_list_variables),
 143   DEF_MI_CMD_MI ("trace-save", mi_cmd_trace_save),
 144   DEF_MI_CMD_MI ("trace-start", mi_cmd_trace_start),
 145   DEF_MI_CMD_MI ("trace-status", mi_cmd_trace_status),
 146   DEF_MI_CMD_MI ("trace-stop", mi_cmd_trace_stop),
 147   DEF_MI_CMD_MI ("var-assign", mi_cmd_var_assign),
 148   DEF_MI_CMD_MI ("var-create", mi_cmd_var_create),
 149   DEF_MI_CMD_MI ("var-delete", mi_cmd_var_delete),
 150   DEF_MI_CMD_MI ("var-evaluate-expression", mi_cmd_var_evaluate_expression),
 151   DEF_MI_CMD_MI ("var-info-path-expression", mi_cmd_var_info_path_expression),
 152   DEF_MI_CMD_MI ("var-info-expression", mi_cmd_var_info_expression),
 153   DEF_MI_CMD_MI ("var-info-num-children", mi_cmd_var_info_num_children),
 154   DEF_MI_CMD_MI ("var-info-type", mi_cmd_var_info_type),
 155   DEF_MI_CMD_MI ("var-list-children", mi_cmd_var_list_children),
 156   DEF_MI_CMD_MI ("var-set-format", mi_cmd_var_set_format),
 157   DEF_MI_CMD_MI ("var-set-frozen", mi_cmd_var_set_frozen),
 158   DEF_MI_CMD_MI ("var-set-update-range", mi_cmd_var_set_update_range),
 159   DEF_MI_CMD_MI ("var-set-visualizer", mi_cmd_var_set_visualizer),
 160   DEF_MI_CMD_MI ("var-show-attributes", mi_cmd_var_show_attributes),
 161   DEF_MI_CMD_MI ("var-show-format", mi_cmd_var_show_format),
 162   DEF_MI_CMD_MI ("var-update", mi_cmd_var_update),
 163   { NULL, }
 164 };
 165
 166 /* Pointer to the mi command table (built at run time). */
 167
 168 static struct mi_cmd **mi_table;
 169
 170 /* A prime large enough to accomodate the entire command table.  */
 171 enum
 172   {
 173     MI_TABLE_SIZE = 227
 174   };
 175
 176 /* Exported function used to obtain info from the table.  */
 177 struct mi_cmd *
 178 mi_lookup (const char *command)
 179 {
 180   return *lookup_table (command);
 181 }
 182
 183 /* Used for collecting hash hit/miss statistics.  */
 184
 185 struct mi_cmd_stats
 186 {
 187   int hit;
 188   int miss;
 189   int rehash;
 190 };
 191 struct mi_cmd_stats stats;
 192
 193 /* Look up a command.  */
 194
 195 static struct mi_cmd **
 196 lookup_table (const char *command)
 197 {
 198   const char *chp;
 199   unsigned int index = 0;
 200
 201   /* Compute our hash.  */
 202   for (chp = command; *chp; chp++)
 203     {
 204       /* We use a somewhat arbitrary formula.  */
 205       index = ((index << 6) + (unsigned int) *chp) % MI_TABLE_SIZE;
 206     }
 207
 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
 241       if (*entry)
 242         internal_error (__FILE__, __LINE__,
 243                         _("command `%s' appears to be duplicated"),
 244                         command->name);
 245       *entry = command;
 246       /* FIXME lose these prints */
 247       if (0)
 248         {
 249           fprintf_unfiltered (gdb_stdlog, "%-30s %2d\n",
 250                               command->name, stats.rehash - nr_rehash);
 251         }
 252       nr_entries++;
 253       nr_rehash = stats.rehash;
 254     }
 255   if (0)
 256     {
 257       fprintf_filtered (gdb_stdlog, "Average %3.1f\n",
 258                         (double) nr_rehash / (double) nr_entries);
 259     }
 260 }
 261
 262 void
 263 _initialize_mi_cmds (void)
 264 {
 265   build_table (mi_cmds);
 266   memset (&stats, 0, sizeof (stats));
 267 }