File: | src/gnu/usr.bin/binutils/gdb/mi/mi-cmds.c |
Warning: | line 253, column 7 Value stored to 'nr_rehash' is never read |
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1 | /* MI Command Set for GDB, the GNU debugger. |
2 | |
3 | Copyright 2000, 2001, 2003 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 2 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, write to the Free Software |
21 | Foundation, Inc., 59 Temple Place - Suite 330, |
22 | Boston, MA 02111-1307, USA. */ |
23 | |
24 | #include "defs.h" |
25 | #include "top.h" |
26 | #include "mi-cmds.h" |
27 | #include "gdb_string.h" |
28 | |
29 | extern void _initialize_mi_cmds (void); |
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 | |
35 | struct mi_cmd mi_cmds[] = |
36 | { |
37 | { "break-after", { "ignore", 1 }, NULL((void*)0), NULL((void*)0) }, |
38 | { "break-catch", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
39 | { "break-commands", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
40 | { "break-condition", { "cond", 1 }, NULL((void*)0), NULL((void*)0) }, |
41 | { "break-delete", { "delete breakpoint", 1 }, NULL((void*)0), NULL((void*)0) }, |
42 | { "break-disable", { "disable breakpoint", 1 }, NULL((void*)0), NULL((void*)0) }, |
43 | { "break-enable", { "enable breakpoint", 1 }, NULL((void*)0), NULL((void*)0) }, |
44 | { "break-info", { "info break", 1 }, NULL((void*)0), NULL((void*)0) }, |
45 | { "break-insert", { NULL((void*)0), 0 }, 0, mi_cmd_break_insert}, |
46 | { "break-list", { "info break", }, NULL((void*)0), NULL((void*)0) }, |
47 | { "break-watch", { NULL((void*)0), 0 }, 0, mi_cmd_break_watch}, |
48 | { "data-disassemble", { NULL((void*)0), 0 }, 0, mi_cmd_disassemble}, |
49 | { "data-evaluate-expression", { NULL((void*)0), 0 }, 0, mi_cmd_data_evaluate_expression}, |
50 | { "data-list-changed-registers", { NULL((void*)0), 0 }, 0, mi_cmd_data_list_changed_registers}, |
51 | { "data-list-register-names", { NULL((void*)0), 0 }, 0, mi_cmd_data_list_register_names}, |
52 | { "data-list-register-values", { NULL((void*)0), 0 }, 0, mi_cmd_data_list_register_values}, |
53 | { "data-read-memory", { NULL((void*)0), 0 }, 0, mi_cmd_data_read_memory}, |
54 | { "data-write-memory", { NULL((void*)0), 0 }, 0, mi_cmd_data_write_memory}, |
55 | { "data-write-register-values", { NULL((void*)0), 0 }, 0, mi_cmd_data_write_register_values}, |
56 | { "display-delete", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
57 | { "display-disable", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
58 | { "display-enable", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
59 | { "display-insert", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
60 | { "display-list", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
61 | { "environment-cd", { NULL((void*)0), 0 }, 0, mi_cmd_env_cd}, |
62 | { "environment-directory", { NULL((void*)0), 0 }, 0, mi_cmd_env_dir}, |
63 | { "environment-path", { NULL((void*)0), 0 }, 0, mi_cmd_env_path}, |
64 | { "environment-pwd", { NULL((void*)0), 0 }, 0, mi_cmd_env_pwd}, |
65 | { "exec-abort", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
66 | { "exec-arguments", { "set args", 1 }, NULL((void*)0), NULL((void*)0) }, |
67 | { "exec-continue", { NULL((void*)0), 0 }, mi_cmd_exec_continue}, |
68 | { "exec-finish", { NULL((void*)0), 0 }, mi_cmd_exec_finish}, |
69 | { "exec-interrupt", { NULL((void*)0), 0 }, mi_cmd_exec_interrupt}, |
70 | { "exec-next", { NULL((void*)0), 0 }, mi_cmd_exec_next}, |
71 | { "exec-next-instruction", { NULL((void*)0), 0 }, mi_cmd_exec_next_instruction}, |
72 | { "exec-return", { NULL((void*)0), 0 }, mi_cmd_exec_return}, |
73 | { "exec-run", { NULL((void*)0), 0 }, mi_cmd_exec_run}, |
74 | { "exec-show-arguments", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
75 | { "exec-signal", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
76 | { "exec-step", { NULL((void*)0), 0 }, mi_cmd_exec_step}, |
77 | { "exec-step-instruction", { NULL((void*)0), 0 }, mi_cmd_exec_step_instruction}, |
78 | { "exec-until", { NULL((void*)0), 0 }, mi_cmd_exec_until}, |
79 | { "file-clear", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
80 | { "file-exec-and-symbols", { "file", 1 }, NULL((void*)0), NULL((void*)0) }, |
81 | { "file-exec-file", { "exec-file", 1 }, NULL((void*)0), NULL((void*)0) }, |
82 | { "file-list-exec-sections", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
83 | { "file-list-exec-source-file", { NULL((void*)0), 0 }, 0, mi_cmd_file_list_exec_source_file}, |
84 | { "file-list-exec-source-files", { NULL((void*)0), 0 }, NULL((void*)0), mi_cmd_file_list_exec_source_files }, |
85 | { "file-list-shared-libraries", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
86 | { "file-list-symbol-files", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
87 | { "file-symbol-file", { "symbol-file", 1 }, NULL((void*)0), NULL((void*)0) }, |
88 | { "gdb-complete", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
89 | { "gdb-exit", { NULL((void*)0), 0 }, 0, mi_cmd_gdb_exit}, |
90 | { "gdb-set", { "set", 1 }, NULL((void*)0), NULL((void*)0) }, |
91 | { "gdb-show", { "show", 1 }, NULL((void*)0), NULL((void*)0) }, |
92 | { "gdb-source", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
93 | { "gdb-version", { "show version", 0 }, 0 }, |
94 | { "interpreter-exec", { NULL((void*)0), 0 }, 0, mi_cmd_interpreter_exec}, |
95 | { "kod-info", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
96 | { "kod-list", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
97 | { "kod-list-object-types", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
98 | { "kod-show", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
99 | { "overlay-auto", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
100 | { "overlay-list-mapping-state", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
101 | { "overlay-list-overlays", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
102 | { "overlay-map", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
103 | { "overlay-off", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
104 | { "overlay-on", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
105 | { "overlay-unmap", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
106 | { "signal-handle", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
107 | { "signal-list-handle-actions", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
108 | { "signal-list-signal-types", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
109 | { "stack-info-depth", { NULL((void*)0), 0 }, 0, mi_cmd_stack_info_depth}, |
110 | { "stack-info-frame", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
111 | { "stack-list-arguments", { NULL((void*)0), 0 }, 0, mi_cmd_stack_list_args}, |
112 | { "stack-list-exception-handlers", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
113 | { "stack-list-frames", { NULL((void*)0), 0 }, 0, mi_cmd_stack_list_frames}, |
114 | { "stack-list-locals", { NULL((void*)0), 0 }, 0, mi_cmd_stack_list_locals}, |
115 | { "stack-select-frame", { NULL((void*)0), 0 }, 0, mi_cmd_stack_select_frame}, |
116 | { "symbol-info-address", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
117 | { "symbol-info-file", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
118 | { "symbol-info-function", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
119 | { "symbol-info-line", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
120 | { "symbol-info-symbol", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
121 | { "symbol-list-functions", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
122 | { "symbol-list-lines", { NULL((void*)0), 0 }, 0, mi_cmd_symbol_list_lines}, |
123 | { "symbol-list-types", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
124 | { "symbol-list-variables", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
125 | { "symbol-locate", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
126 | { "symbol-type", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
127 | { "target-attach", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
128 | { "target-compare-sections", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
129 | { "target-detach", { "detach", 0 }, 0 }, |
130 | { "target-disconnect", { "disconnect", 0 }, 0 }, |
131 | { "target-download", { NULL((void*)0), 0 }, mi_cmd_target_download}, |
132 | { "target-exec-status", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
133 | { "target-list-available-targets", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
134 | { "target-list-current-targets", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
135 | { "target-list-parameters", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
136 | { "target-select", { NULL((void*)0), 0 }, mi_cmd_target_select}, |
137 | { "thread-info", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
138 | { "thread-list-all-threads", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
139 | { "thread-list-ids", { NULL((void*)0), 0 }, 0, mi_cmd_thread_list_ids}, |
140 | { "thread-select", { NULL((void*)0), 0 }, 0, mi_cmd_thread_select}, |
141 | { "trace-actions", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
142 | { "trace-delete", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
143 | { "trace-disable", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
144 | { "trace-dump", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
145 | { "trace-enable", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
146 | { "trace-exists", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
147 | { "trace-find", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
148 | { "trace-frame-number", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
149 | { "trace-info", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
150 | { "trace-insert", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
151 | { "trace-list", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
152 | { "trace-pass-count", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
153 | { "trace-save", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
154 | { "trace-start", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
155 | { "trace-stop", { NULL((void*)0), 0 }, NULL((void*)0), NULL((void*)0) }, |
156 | { "var-assign", { NULL((void*)0), 0 }, 0, mi_cmd_var_assign}, |
157 | { "var-create", { NULL((void*)0), 0 }, 0, mi_cmd_var_create}, |
158 | { "var-delete", { NULL((void*)0), 0 }, 0, mi_cmd_var_delete}, |
159 | { "var-evaluate-expression", { NULL((void*)0), 0 }, 0, mi_cmd_var_evaluate_expression}, |
160 | { "var-info-expression", { NULL((void*)0), 0 }, 0, mi_cmd_var_info_expression}, |
161 | { "var-info-num-children", { NULL((void*)0), 0 }, 0, mi_cmd_var_info_num_children}, |
162 | { "var-info-type", { NULL((void*)0), 0 }, 0, mi_cmd_var_info_type}, |
163 | { "var-list-children", { NULL((void*)0), 0 }, 0, mi_cmd_var_list_children}, |
164 | { "var-set-format", { NULL((void*)0), 0 }, 0, mi_cmd_var_set_format}, |
165 | { "var-show-attributes", { NULL((void*)0), 0 }, 0, mi_cmd_var_show_attributes}, |
166 | { "var-show-format", { NULL((void*)0), 0 }, 0, mi_cmd_var_show_format}, |
167 | { "var-update", { NULL((void*)0), 0 }, 0, mi_cmd_var_update}, |
168 | { NULL((void*)0), } |
169 | }; |
170 | |
171 | /* Pointer to the mi command table (built at run time) */ |
172 | |
173 | static struct mi_cmd **mi_table; |
174 | |
175 | /* A prime large enough to accomodate the entire command table */ |
176 | enum |
177 | { |
178 | MI_TABLE_SIZE = 227 |
179 | }; |
180 | |
181 | /* Exported function used to obtain info from the table */ |
182 | struct mi_cmd * |
183 | mi_lookup (const char *command) |
184 | { |
185 | return *lookup_table (command); |
186 | } |
187 | |
188 | /* stat collecting */ |
189 | struct mi_cmd_stats |
190 | { |
191 | int hit; |
192 | int miss; |
193 | int rehash; |
194 | }; |
195 | struct mi_cmd_stats stats; |
196 | |
197 | /* our lookup function */ |
198 | static struct mi_cmd ** |
199 | lookup_table (const char *command) |
200 | { |
201 | const char *chp; |
202 | unsigned int index = 0; |
203 | /* compute our hash */ |
204 | for (chp = command; *chp; chp++) |
205 | { |
206 | /* some what arbitrary */ |
207 | index = ((index << 6) + (unsigned int) *chp) % MI_TABLE_SIZE; |
208 | } |
209 | /* look it up */ |
210 | while (1) |
211 | { |
212 | struct mi_cmd **entry = &mi_table[index]; |
213 | if ((*entry) == 0) |
214 | { |
215 | /* not found, return pointer to next free. */ |
216 | stats.miss++; |
217 | return entry; |
218 | } |
219 | if (strcmp (command, (*entry)->name) == 0) |
220 | { |
221 | stats.hit++; |
222 | return entry; /* found */ |
223 | } |
224 | index = (index + 1) % MI_TABLE_SIZE; |
225 | stats.rehash++; |
226 | } |
227 | } |
228 | |
229 | static void |
230 | build_table (struct mi_cmd *commands) |
231 | { |
232 | int nr_rehash = 0; |
233 | int nr_entries = 0; |
234 | struct mi_cmd *command; |
235 | int sizeof_table = sizeof (struct mi_cmd **) * MI_TABLE_SIZE; |
236 | |
237 | mi_table = xmalloc (sizeof_table); |
238 | memset (mi_table, 0, sizeof_table); |
239 | for (command = commands; command->name != 0; command++) |
240 | { |
241 | struct mi_cmd **entry = lookup_table (command->name); |
242 | if (*entry) |
243 | internal_error (__FILE__"/usr/src/gnu/usr.bin/binutils/gdb/mi/mi-cmds.c", __LINE__243, |
244 | "command `%s' appears to be duplicated", |
245 | command->name); |
246 | *entry = command; |
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; |
Value stored to 'nr_rehash' is never read | |
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 | } |