Commit | Line | Data |
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1bfeeb0f JL |
1 | /* Skipping uninteresting files and functions while stepping. |
2 | ||
28e7fd62 | 3 | Copyright (C) 2011-2013 Free Software Foundation, Inc. |
1bfeeb0f JL |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU General Public License as published by | |
7 | the Free Software Foundation; either version 3 of the License, or | |
8 | (at your option) any later version. | |
9 | ||
10 | This program is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU General Public License | |
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
17 | ||
18 | #include "defs.h" | |
19 | #include "skip.h" | |
20 | #include "value.h" | |
21 | #include "valprint.h" | |
22 | #include "ui-out.h" | |
23 | #include "gdb_string.h" | |
24 | #include "symtab.h" | |
25 | #include "gdbcmd.h" | |
26 | #include "command.h" | |
27 | #include "completer.h" | |
28 | #include "stack.h" | |
29 | #include "cli/cli-utils.h" | |
30 | #include "arch-utils.h" | |
31 | #include "linespec.h" | |
32 | #include "objfiles.h" | |
33 | #include "exceptions.h" | |
34 | #include "breakpoint.h" /* for get_sal_arch () */ | |
35 | ||
36 | struct skiplist_entry | |
37 | { | |
38 | int number; | |
39 | ||
40 | /* NULL if this isn't a skiplist entry for an entire file. | |
41 | The skiplist entry owns this pointer. */ | |
42 | char *filename; | |
43 | ||
44 | /* The name of the marked-for-skip function, if this is a skiplist | |
85817405 | 45 | entry for a function. |
1bfeeb0f JL |
46 | The skiplist entry owns this pointer. */ |
47 | char *function_name; | |
48 | ||
1bfeeb0f | 49 | int enabled; |
1bfeeb0f JL |
50 | |
51 | struct skiplist_entry *next; | |
52 | }; | |
53 | ||
1bfeeb0f | 54 | static void add_skiplist_entry (struct skiplist_entry *e); |
85817405 | 55 | static void skip_function (const char *name); |
1bfeeb0f JL |
56 | |
57 | static struct skiplist_entry *skiplist_entry_chain; | |
58 | static int skiplist_entry_count; | |
59 | ||
60 | #define ALL_SKIPLIST_ENTRIES(E) \ | |
61 | for (E = skiplist_entry_chain; E; E = E->next) | |
62 | ||
63 | #define ALL_SKIPLIST_ENTRIES_SAFE(E,TMP) \ | |
64 | for (E = skiplist_entry_chain; \ | |
65 | E ? (TMP = E->next, 1) : 0; \ | |
66 | E = TMP) | |
67 | ||
68 | static void | |
69 | skip_file_command (char *arg, int from_tty) | |
70 | { | |
71 | struct skiplist_entry *e; | |
3d745be3 | 72 | const struct symtab *symtab; |
3d745be3 | 73 | const char *filename = NULL; |
1bfeeb0f JL |
74 | |
75 | /* If no argument was given, try to default to the last | |
76 | displayed codepoint. */ | |
3d745be3 | 77 | if (arg == NULL) |
1bfeeb0f JL |
78 | { |
79 | symtab = get_last_displayed_symtab (); | |
3d745be3 | 80 | if (symtab == NULL) |
1bfeeb0f JL |
81 | error (_("No default file now.")); |
82 | else | |
83 | filename = symtab->filename; | |
84 | } | |
85 | else | |
86 | { | |
87 | symtab = lookup_symtab (arg); | |
3d745be3 | 88 | if (symtab == NULL) |
1bfeeb0f JL |
89 | { |
90 | fprintf_filtered (gdb_stderr, _("No source file named %s.\n"), arg); | |
91 | if (!nquery (_("\ | |
92 | Ignore file pending future shared library load? "))) | |
93 | return; | |
94 | ||
1bfeeb0f | 95 | } |
85817405 | 96 | filename = arg; |
1bfeeb0f JL |
97 | } |
98 | ||
99 | e = XZALLOC (struct skiplist_entry); | |
100 | e->filename = xstrdup (filename); | |
101 | e->enabled = 1; | |
1bfeeb0f JL |
102 | |
103 | add_skiplist_entry (e); | |
104 | ||
105 | printf_filtered (_("File %s will be skipped when stepping.\n"), filename); | |
106 | } | |
107 | ||
108 | static void | |
109 | skip_function_command (char *arg, int from_tty) | |
110 | { | |
2c02bd72 | 111 | const char *name = NULL; |
1bfeeb0f JL |
112 | |
113 | /* Default to the current function if no argument is given. */ | |
3d745be3 | 114 | if (arg == NULL) |
1bfeeb0f JL |
115 | { |
116 | CORE_ADDR pc; | |
3d745be3 | 117 | |
1bfeeb0f JL |
118 | if (!last_displayed_sal_is_valid ()) |
119 | error (_("No default function now.")); | |
120 | ||
121 | pc = get_last_displayed_addr (); | |
85817405 | 122 | if (!find_pc_partial_function (pc, &name, NULL, NULL)) |
1bfeeb0f JL |
123 | { |
124 | error (_("No function found containing current program point %s."), | |
125 | paddress (get_current_arch (), pc)); | |
126 | } | |
85817405 | 127 | skip_function (name); |
1bfeeb0f JL |
128 | } |
129 | else | |
130 | { | |
85817405 | 131 | if (lookup_symbol (arg, NULL, VAR_DOMAIN, NULL) == NULL) |
1bfeeb0f | 132 | { |
1bfeeb0f | 133 | fprintf_filtered (gdb_stderr, |
85817405 | 134 | _("No function found named %s.\n"), arg); |
1bfeeb0f JL |
135 | |
136 | if (nquery (_("\ | |
137 | Ignore function pending future shared library load? "))) | |
138 | { | |
85817405 JK |
139 | /* Add the unverified skiplist entry. */ |
140 | skip_function (arg); | |
1bfeeb0f | 141 | } |
1bfeeb0f JL |
142 | return; |
143 | } | |
144 | ||
85817405 | 145 | skip_function (arg); |
1bfeeb0f JL |
146 | } |
147 | } | |
148 | ||
149 | static void | |
150 | skip_info (char *arg, int from_tty) | |
151 | { | |
152 | struct skiplist_entry *e; | |
153 | int num_printable_entries = 0; | |
1bfeeb0f JL |
154 | struct value_print_options opts; |
155 | struct cleanup *tbl_chain; | |
156 | ||
157 | get_user_print_options (&opts); | |
158 | ||
159 | /* Count the number of rows in the table and see if we need space for a | |
160 | 64-bit address anywhere. */ | |
161 | ALL_SKIPLIST_ENTRIES (e) | |
3d745be3 | 162 | if (arg == NULL || number_is_in_list (arg, e->number)) |
85817405 | 163 | num_printable_entries++; |
1bfeeb0f JL |
164 | |
165 | if (num_printable_entries == 0) | |
166 | { | |
3d745be3 | 167 | if (arg == NULL) |
1bfeeb0f JL |
168 | ui_out_message (current_uiout, 0, _("\ |
169 | Not skipping any files or functions.\n")); | |
170 | else | |
171 | ui_out_message (current_uiout, 0, | |
172 | _("No skiplist entries found with number %s.\n"), arg); | |
173 | ||
174 | return; | |
175 | } | |
176 | ||
85817405 JK |
177 | tbl_chain = make_cleanup_ui_out_table_begin_end (current_uiout, 4, |
178 | num_printable_entries, | |
179 | "SkiplistTable"); | |
1bfeeb0f JL |
180 | |
181 | ui_out_table_header (current_uiout, 7, ui_left, "number", "Num"); /* 1 */ | |
182 | ui_out_table_header (current_uiout, 14, ui_left, "type", "Type"); /* 2 */ | |
183 | ui_out_table_header (current_uiout, 3, ui_left, "enabled", "Enb"); /* 3 */ | |
85817405 | 184 | ui_out_table_header (current_uiout, 40, ui_noalign, "what", "What"); /* 4 */ |
1bfeeb0f JL |
185 | ui_out_table_body (current_uiout); |
186 | ||
187 | ALL_SKIPLIST_ENTRIES (e) | |
188 | { | |
189 | struct cleanup *entry_chain; | |
190 | ||
191 | QUIT; | |
3d745be3 | 192 | if (arg != NULL && !number_is_in_list (arg, e->number)) |
1bfeeb0f JL |
193 | continue; |
194 | ||
195 | entry_chain = make_cleanup_ui_out_tuple_begin_end (current_uiout, | |
196 | "blklst-entry"); | |
197 | ui_out_field_int (current_uiout, "number", e->number); /* 1 */ | |
198 | ||
3d745be3 | 199 | if (e->function_name != NULL) |
1bfeeb0f | 200 | ui_out_field_string (current_uiout, "type", "function"); /* 2 */ |
3d745be3 | 201 | else if (e->filename != NULL) |
1bfeeb0f JL |
202 | ui_out_field_string (current_uiout, "type", "file"); /* 2 */ |
203 | else | |
204 | internal_error (__FILE__, __LINE__, _("\ | |
205 | Skiplist entry should have either a filename or a function name.")); | |
206 | ||
207 | if (e->enabled) | |
208 | ui_out_field_string (current_uiout, "enabled", "y"); /* 3 */ | |
209 | else | |
210 | ui_out_field_string (current_uiout, "enabled", "n"); /* 3 */ | |
211 | ||
85817405 JK |
212 | if (e->function_name != NULL) |
213 | ui_out_field_string (current_uiout, "what", e->function_name); /* 4 */ | |
214 | else if (e->filename != NULL) | |
215 | ui_out_field_string (current_uiout, "what", e->filename); /* 4 */ | |
1bfeeb0f JL |
216 | |
217 | ui_out_text (current_uiout, "\n"); | |
218 | do_cleanups (entry_chain); | |
219 | } | |
220 | ||
221 | do_cleanups (tbl_chain); | |
222 | } | |
223 | ||
224 | static void | |
225 | skip_enable_command (char *arg, int from_tty) | |
226 | { | |
227 | struct skiplist_entry *e; | |
228 | int found = 0; | |
229 | ||
230 | ALL_SKIPLIST_ENTRIES (e) | |
3d745be3 | 231 | if (arg == NULL || number_is_in_list (arg, e->number)) |
1bfeeb0f JL |
232 | { |
233 | e->enabled = 1; | |
234 | found = 1; | |
235 | } | |
236 | ||
237 | if (!found) | |
238 | error (_("No skiplist entries found with number %s."), arg); | |
239 | } | |
240 | ||
241 | static void | |
242 | skip_disable_command (char *arg, int from_tty) | |
243 | { | |
244 | struct skiplist_entry *e; | |
245 | int found = 0; | |
246 | ||
247 | ALL_SKIPLIST_ENTRIES (e) | |
3d745be3 | 248 | if (arg == NULL || number_is_in_list (arg, e->number)) |
1bfeeb0f JL |
249 | { |
250 | e->enabled = 0; | |
251 | found = 1; | |
252 | } | |
253 | ||
254 | if (!found) | |
255 | error (_("No skiplist entries found with number %s."), arg); | |
256 | } | |
257 | ||
258 | static void | |
259 | skip_delete_command (char *arg, int from_tty) | |
260 | { | |
261 | struct skiplist_entry *e, *temp, *b_prev; | |
262 | int found = 0; | |
263 | ||
264 | b_prev = 0; | |
265 | ALL_SKIPLIST_ENTRIES_SAFE (e, temp) | |
3d745be3 | 266 | if (arg == NULL || number_is_in_list (arg, e->number)) |
1bfeeb0f | 267 | { |
3d745be3 | 268 | if (b_prev != NULL) |
1bfeeb0f JL |
269 | b_prev->next = e->next; |
270 | else | |
271 | skiplist_entry_chain = e->next; | |
272 | ||
273 | xfree (e->function_name); | |
274 | xfree (e->filename); | |
275 | xfree (e); | |
276 | found = 1; | |
277 | } | |
278 | else | |
279 | { | |
280 | b_prev = e; | |
281 | } | |
282 | ||
283 | if (!found) | |
284 | error (_("No skiplist entries found with number %s."), arg); | |
285 | } | |
286 | ||
85817405 JK |
287 | /* Create a skiplist entry for the given function NAME and add it to the |
288 | list. */ | |
1bfeeb0f JL |
289 | |
290 | static void | |
85817405 | 291 | skip_function (const char *name) |
1bfeeb0f JL |
292 | { |
293 | struct skiplist_entry *e = XZALLOC (struct skiplist_entry); | |
294 | ||
1bfeeb0f | 295 | e->enabled = 1; |
1bfeeb0f JL |
296 | e->function_name = xstrdup (name); |
297 | ||
298 | add_skiplist_entry (e); | |
299 | ||
85817405 | 300 | printf_filtered (_("Function %s will be skipped when stepping.\n"), name); |
1bfeeb0f JL |
301 | } |
302 | ||
303 | /* Add the given skiplist entry to our list, and set the entry's number. */ | |
304 | ||
305 | static void | |
306 | add_skiplist_entry (struct skiplist_entry *e) | |
307 | { | |
308 | struct skiplist_entry *e1; | |
309 | ||
310 | e->number = ++skiplist_entry_count; | |
311 | ||
312 | /* Add to the end of the chain so that the list of | |
313 | skiplist entries will be in numerical order. */ | |
314 | ||
315 | e1 = skiplist_entry_chain; | |
3d745be3 | 316 | if (e1 == NULL) |
1bfeeb0f JL |
317 | skiplist_entry_chain = e; |
318 | else | |
319 | { | |
320 | while (e1->next) | |
321 | e1 = e1->next; | |
322 | e1->next = e; | |
323 | } | |
324 | } | |
325 | ||
85817405 JK |
326 | |
327 | /* See skip.h. */ | |
1bfeeb0f JL |
328 | |
329 | int | |
85817405 JK |
330 | function_name_is_marked_for_skip (const char *function_name, |
331 | const struct symtab_and_line *function_sal) | |
1bfeeb0f | 332 | { |
1bfeeb0f JL |
333 | struct skiplist_entry *e; |
334 | ||
85817405 JK |
335 | if (function_name == NULL) |
336 | return 0; | |
337 | ||
1bfeeb0f JL |
338 | ALL_SKIPLIST_ENTRIES (e) |
339 | { | |
85817405 | 340 | if (!e->enabled) |
1bfeeb0f JL |
341 | continue; |
342 | ||
343 | /* Does the pc we're stepping into match e's stored pc? */ | |
85817405 JK |
344 | if (e->function_name != NULL |
345 | && strcmp_iw (function_name, e->function_name) == 0) | |
1bfeeb0f JL |
346 | return 1; |
347 | ||
85817405 JK |
348 | if (e->filename != NULL && function_sal->symtab != NULL |
349 | && function_sal->symtab->filename != NULL | |
350 | && compare_filenames_for_search (function_sal->symtab->filename, | |
351 | e->filename)) | |
352 | return 1; | |
1bfeeb0f JL |
353 | } |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
70221824 PA |
358 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
359 | extern initialize_file_ftype _initialize_step_skip; | |
360 | ||
1bfeeb0f JL |
361 | void |
362 | _initialize_step_skip (void) | |
363 | { | |
8bfd80db | 364 | static struct cmd_list_element *skiplist = NULL; |
1bfeeb0f JL |
365 | struct cmd_list_element *c; |
366 | ||
367 | skiplist_entry_chain = 0; | |
368 | skiplist_entry_count = 0; | |
369 | ||
370 | add_prefix_cmd ("skip", class_breakpoint, skip_function_command, _("\ | |
371 | Ignore a function while stepping.\n\ | |
372 | Usage: skip [FUNCTION NAME]\n\ | |
373 | If no function name is given, ignore the current function."), | |
374 | &skiplist, "skip ", 1, &cmdlist); | |
375 | ||
376 | c = add_cmd ("file", class_breakpoint, skip_file_command, _("\ | |
377 | Ignore a file while stepping.\n\ | |
378 | Usage: skip file [FILENAME]\n\ | |
379 | If no filename is given, ignore the current file."), | |
380 | &skiplist); | |
381 | set_cmd_completer (c, filename_completer); | |
382 | ||
383 | c = add_cmd ("function", class_breakpoint, skip_function_command, _("\ | |
384 | Ignore a function while stepping.\n\ | |
385 | Usage: skip function [FUNCTION NAME]\n\ | |
386 | If no function name is given, skip the current function."), | |
387 | &skiplist); | |
388 | set_cmd_completer (c, location_completer); | |
389 | ||
390 | add_cmd ("enable", class_breakpoint, skip_enable_command, _("\ | |
391 | Enable skip entries. You can specify numbers (e.g. \"skip enable 1 3\"), \ | |
392 | ranges (e.g. \"skip enable 4-8\"), or both (e.g. \"skip enable 1 3 4-8\").\n\n\ | |
393 | If you don't specify any numbers or ranges, we'll enable all skip entries.\n\n\ | |
394 | Usage: skip enable [NUMBERS AND/OR RANGES]"), | |
395 | &skiplist); | |
396 | ||
397 | add_cmd ("disable", class_breakpoint, skip_disable_command, _("\ | |
398 | Disable skip entries. You can specify numbers (e.g. \"skip disable 1 3\"), \ | |
399 | ranges (e.g. \"skip disable 4-8\"), or both (e.g. \"skip disable 1 3 4-8\").\n\n\ | |
400 | If you don't specify any numbers or ranges, we'll disable all skip entries.\n\n\ | |
401 | Usage: skip disable [NUMBERS AND/OR RANGES]"), | |
402 | &skiplist); | |
403 | ||
404 | add_cmd ("delete", class_breakpoint, skip_delete_command, _("\ | |
405 | Delete skip entries. You can specify numbers (e.g. \"skip delete 1 3\"), \ | |
406 | ranges (e.g. \"skip delete 4-8\"), or both (e.g. \"skip delete 1 3 4-8\").\n\n\ | |
407 | If you don't specify any numbers or ranges, we'll delete all skip entries.\n\n\ | |
408 | Usage: skip delete [NUMBERS AND/OR RANGES]"), | |
409 | &skiplist); | |
410 | ||
411 | add_info ("skip", skip_info, _("\ | |
412 | Display the status of skips. You can specify numbers (e.g. \"skip info 1 3\"), \ | |
413 | ranges (e.g. \"skip info 4-8\"), or both (e.g. \"skip info 1 3 4-8\").\n\n\ | |
414 | If you don't specify any numbers or ranges, we'll show all skips.\n\n\ | |
415 | Usage: skip info [NUMBERS AND/OR RANGES]\n\ | |
416 | The \"Type\" column indicates one of:\n\ | |
417 | \tfile - ignored file\n\ | |
418 | \tfunction - ignored function")); | |
419 | } |