1 /* Skipping uninteresting files and functions while stepping.
3 Copyright (C) 2011-2014 Free Software Foundation, Inc.
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.
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.
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/>. */
26 #include "completer.h"
28 #include "cli/cli-utils.h"
29 #include "arch-utils.h"
32 #include "exceptions.h"
33 #include "breakpoint.h" /* for get_sal_arch () */
35 #include "filenames.h"
41 /* NULL if this isn't a skiplist entry for an entire file.
42 The skiplist entry owns this pointer. */
45 /* The name of the marked-for-skip function, if this is a skiplist
47 The skiplist entry owns this pointer. */
52 struct skiplist_entry *next;
55 static void add_skiplist_entry (struct skiplist_entry *e);
56 static void skip_function (const char *name);
58 static struct skiplist_entry *skiplist_entry_chain;
59 static int skiplist_entry_count;
61 #define ALL_SKIPLIST_ENTRIES(E) \
62 for (E = skiplist_entry_chain; E; E = E->next)
64 #define ALL_SKIPLIST_ENTRIES_SAFE(E,TMP) \
65 for (E = skiplist_entry_chain; \
66 E ? (TMP = E->next, 1) : 0; \
70 skip_file_command (char *arg, int from_tty)
72 struct skiplist_entry *e;
73 struct symtab *symtab;
74 const char *filename = NULL;
76 /* If no argument was given, try to default to the last
77 displayed codepoint. */
80 symtab = get_last_displayed_symtab ();
82 error (_("No default file now."));
84 /* It is not a typo, symtab_to_filename_for_display woule be needlessly
86 filename = symtab_to_fullname (symtab);
90 symtab = lookup_symtab (arg);
93 fprintf_filtered (gdb_stderr, _("No source file named %s.\n"), arg);
95 Ignore file pending future shared library load? ")))
98 /* Do not use SYMTAB's filename, later loaded shared libraries may match
99 given ARG but not SYMTAB's filename. */
103 e = XCNEW (struct skiplist_entry);
104 e->filename = xstrdup (filename);
107 add_skiplist_entry (e);
109 printf_filtered (_("File %s will be skipped when stepping.\n"), filename);
113 skip_function_command (char *arg, int from_tty)
115 const char *name = NULL;
117 /* Default to the current function if no argument is given. */
122 if (!last_displayed_sal_is_valid ())
123 error (_("No default function now."));
125 pc = get_last_displayed_addr ();
126 if (!find_pc_partial_function (pc, &name, NULL, NULL))
128 error (_("No function found containing current program point %s."),
129 paddress (get_current_arch (), pc));
131 skip_function (name);
135 if (lookup_symbol (arg, NULL, VAR_DOMAIN, NULL) == NULL)
137 fprintf_filtered (gdb_stderr,
138 _("No function found named %s.\n"), arg);
141 Ignore function pending future shared library load? ")))
143 /* Add the unverified skiplist entry. */
154 skip_info (char *arg, int from_tty)
156 struct skiplist_entry *e;
157 int num_printable_entries = 0;
158 struct value_print_options opts;
159 struct cleanup *tbl_chain;
161 get_user_print_options (&opts);
163 /* Count the number of rows in the table and see if we need space for a
164 64-bit address anywhere. */
165 ALL_SKIPLIST_ENTRIES (e)
166 if (arg == NULL || number_is_in_list (arg, e->number))
167 num_printable_entries++;
169 if (num_printable_entries == 0)
172 ui_out_message (current_uiout, 0, _("\
173 Not skipping any files or functions.\n"));
175 ui_out_message (current_uiout, 0,
176 _("No skiplist entries found with number %s.\n"), arg);
181 tbl_chain = make_cleanup_ui_out_table_begin_end (current_uiout, 4,
182 num_printable_entries,
185 ui_out_table_header (current_uiout, 7, ui_left, "number", "Num"); /* 1 */
186 ui_out_table_header (current_uiout, 14, ui_left, "type", "Type"); /* 2 */
187 ui_out_table_header (current_uiout, 3, ui_left, "enabled", "Enb"); /* 3 */
188 ui_out_table_header (current_uiout, 40, ui_noalign, "what", "What"); /* 4 */
189 ui_out_table_body (current_uiout);
191 ALL_SKIPLIST_ENTRIES (e)
193 struct cleanup *entry_chain;
196 if (arg != NULL && !number_is_in_list (arg, e->number))
199 entry_chain = make_cleanup_ui_out_tuple_begin_end (current_uiout,
201 ui_out_field_int (current_uiout, "number", e->number); /* 1 */
203 if (e->function_name != NULL)
204 ui_out_field_string (current_uiout, "type", "function"); /* 2 */
205 else if (e->filename != NULL)
206 ui_out_field_string (current_uiout, "type", "file"); /* 2 */
208 internal_error (__FILE__, __LINE__, _("\
209 Skiplist entry should have either a filename or a function name."));
212 ui_out_field_string (current_uiout, "enabled", "y"); /* 3 */
214 ui_out_field_string (current_uiout, "enabled", "n"); /* 3 */
216 if (e->function_name != NULL)
217 ui_out_field_string (current_uiout, "what", e->function_name); /* 4 */
218 else if (e->filename != NULL)
219 ui_out_field_string (current_uiout, "what", e->filename); /* 4 */
221 ui_out_text (current_uiout, "\n");
222 do_cleanups (entry_chain);
225 do_cleanups (tbl_chain);
229 skip_enable_command (char *arg, int from_tty)
231 struct skiplist_entry *e;
234 ALL_SKIPLIST_ENTRIES (e)
235 if (arg == NULL || number_is_in_list (arg, e->number))
242 error (_("No skiplist entries found with number %s."), arg);
246 skip_disable_command (char *arg, int from_tty)
248 struct skiplist_entry *e;
251 ALL_SKIPLIST_ENTRIES (e)
252 if (arg == NULL || number_is_in_list (arg, e->number))
259 error (_("No skiplist entries found with number %s."), arg);
263 skip_delete_command (char *arg, int from_tty)
265 struct skiplist_entry *e, *temp, *b_prev;
269 ALL_SKIPLIST_ENTRIES_SAFE (e, temp)
270 if (arg == NULL || number_is_in_list (arg, e->number))
273 b_prev->next = e->next;
275 skiplist_entry_chain = e->next;
277 xfree (e->function_name);
288 error (_("No skiplist entries found with number %s."), arg);
291 /* Create a skiplist entry for the given function NAME and add it to the
295 skip_function (const char *name)
297 struct skiplist_entry *e = XCNEW (struct skiplist_entry);
300 e->function_name = xstrdup (name);
302 add_skiplist_entry (e);
304 printf_filtered (_("Function %s will be skipped when stepping.\n"), name);
307 /* Add the given skiplist entry to our list, and set the entry's number. */
310 add_skiplist_entry (struct skiplist_entry *e)
312 struct skiplist_entry *e1;
314 e->number = ++skiplist_entry_count;
316 /* Add to the end of the chain so that the list of
317 skiplist entries will be in numerical order. */
319 e1 = skiplist_entry_chain;
321 skiplist_entry_chain = e;
334 function_name_is_marked_for_skip (const char *function_name,
335 const struct symtab_and_line *function_sal)
337 int searched_for_fullname = 0;
338 const char *fullname = NULL;
339 struct skiplist_entry *e;
341 if (function_name == NULL)
344 ALL_SKIPLIST_ENTRIES (e)
349 /* Does the pc we're stepping into match e's stored pc? */
350 if (e->function_name != NULL
351 && strcmp_iw (function_name, e->function_name) == 0)
354 if (e->filename != NULL)
356 /* Check first sole SYMTAB->FILENAME. It does not need to be
357 a substring of symtab_to_fullname as it may contain "./" etc. */
358 if (function_sal->symtab != NULL
359 && compare_filenames_for_search (function_sal->symtab->filename,
363 /* Before we invoke realpath, which can get expensive when many
364 files are involved, do a quick comparison of the basenames. */
365 if (!basenames_may_differ
366 && (function_sal->symtab == NULL
367 || filename_cmp (lbasename (function_sal->symtab->filename),
368 lbasename (e->filename)) != 0))
371 /* Get the filename corresponding to this FUNCTION_SAL, if we haven't
373 if (!searched_for_fullname)
375 if (function_sal->symtab != NULL)
376 fullname = symtab_to_fullname (function_sal->symtab);
377 searched_for_fullname = 1;
380 && compare_filenames_for_search (fullname, e->filename))
388 /* Provide a prototype to silence -Wmissing-prototypes. */
389 extern initialize_file_ftype _initialize_step_skip;
392 _initialize_step_skip (void)
394 static struct cmd_list_element *skiplist = NULL;
395 struct cmd_list_element *c;
397 skiplist_entry_chain = 0;
398 skiplist_entry_count = 0;
400 add_prefix_cmd ("skip", class_breakpoint, skip_function_command, _("\
401 Ignore a function while stepping.\n\
402 Usage: skip [FUNCTION NAME]\n\
403 If no function name is given, ignore the current function."),
404 &skiplist, "skip ", 1, &cmdlist);
406 c = add_cmd ("file", class_breakpoint, skip_file_command, _("\
407 Ignore a file while stepping.\n\
408 Usage: skip file [FILENAME]\n\
409 If no filename is given, ignore the current file."),
411 set_cmd_completer (c, filename_completer);
413 c = add_cmd ("function", class_breakpoint, skip_function_command, _("\
414 Ignore a function while stepping.\n\
415 Usage: skip function [FUNCTION NAME]\n\
416 If no function name is given, skip the current function."),
418 set_cmd_completer (c, location_completer);
420 add_cmd ("enable", class_breakpoint, skip_enable_command, _("\
421 Enable skip entries. You can specify numbers (e.g. \"skip enable 1 3\"), \
422 ranges (e.g. \"skip enable 4-8\"), or both (e.g. \"skip enable 1 3 4-8\").\n\n\
423 If you don't specify any numbers or ranges, we'll enable all skip entries.\n\n\
424 Usage: skip enable [NUMBERS AND/OR RANGES]"),
427 add_cmd ("disable", class_breakpoint, skip_disable_command, _("\
428 Disable skip entries. You can specify numbers (e.g. \"skip disable 1 3\"), \
429 ranges (e.g. \"skip disable 4-8\"), or both (e.g. \"skip disable 1 3 4-8\").\n\n\
430 If you don't specify any numbers or ranges, we'll disable all skip entries.\n\n\
431 Usage: skip disable [NUMBERS AND/OR RANGES]"),
434 add_cmd ("delete", class_breakpoint, skip_delete_command, _("\
435 Delete skip entries. You can specify numbers (e.g. \"skip delete 1 3\"), \
436 ranges (e.g. \"skip delete 4-8\"), or both (e.g. \"skip delete 1 3 4-8\").\n\n\
437 If you don't specify any numbers or ranges, we'll delete all skip entries.\n\n\
438 Usage: skip delete [NUMBERS AND/OR RANGES]"),
441 add_info ("skip", skip_info, _("\
442 Display the status of skips. You can specify numbers (e.g. \"skip info 1 3\"), \
443 ranges (e.g. \"skip info 4-8\"), or both (e.g. \"skip info 1 3 4-8\").\n\n\
444 If you don't specify any numbers or ranges, we'll show all skips.\n\n\
445 Usage: skip info [NUMBERS AND/OR RANGES]\n\
446 The \"Type\" column indicates one of:\n\
447 \tfile - ignored file\n\
448 \tfunction - ignored function"));