1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
3 /* I/O, string, cleanup, and other random utilities for GDB.
4 Copyright (C) 1986-2015 Free Software Foundation, Inc.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 #include "exceptions.h"
26 extern void initialize_utils (void);
28 /* String utilities. */
30 extern int sevenbit_strings;
32 extern int strcmp_iw (const char *, const char *);
34 extern int strcmp_iw_ordered (const char *, const char *);
36 extern int streq (const char *, const char *);
38 extern int subset_compare (char *, char *);
40 ULONGEST strtoulst (const char *num, const char **trailer, int base);
42 int compare_positive_ints (const void *ap, const void *bp);
43 int compare_strings (const void *ap, const void *bp);
45 /* A wrapper for bfd_errmsg to produce a more helpful error message
46 in the case of bfd_error_file_ambiguously recognized.
47 MATCHING, if non-NULL, is the corresponding argument to
48 bfd_check_format_matches, and will be freed. */
50 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
52 /* Reset the prompt_for_continue clock. */
53 void reset_prompt_for_continue_wait_time (void);
54 /* Return the time spent in prompt_for_continue. */
55 struct timeval get_prompt_for_continue_wait_time (void);
57 /* Parsing utilites. */
59 extern int parse_pid_to_attach (const char *args);
61 extern int parse_escape (struct gdbarch *, const char **);
63 char **gdb_buildargv (const char *);
65 /* Cleanup utilities. */
67 extern struct cleanup *make_cleanup_freeargv (char **);
70 extern struct cleanup *make_cleanup_dyn_string_delete (struct dyn_string *);
73 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
76 extern struct cleanup *
77 make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
79 struct section_addr_info;
80 extern struct cleanup *(make_cleanup_free_section_addr_info
81 (struct section_addr_info *));
83 /* For make_cleanup_close see common/filestuff.h. */
85 extern struct cleanup *make_cleanup_fclose (FILE *file);
87 extern struct cleanup *make_cleanup_bfd_unref (bfd *abfd);
90 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);
92 extern struct cleanup *make_cleanup_restore_integer (int *variable);
93 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);
96 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
98 extern struct cleanup *
99 make_cleanup_restore_ui_file (struct ui_file **variable);
101 extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
102 extern struct cleanup *make_cleanup_value_free (struct value *);
105 extern struct cleanup *make_cleanup_free_so (struct so_list *so);
107 extern struct cleanup *make_cleanup_restore_current_language (void);
109 extern struct cleanup *make_cleanup_htab_delete (htab_t htab);
112 extern struct cleanup *make_cleanup_clear_parser_state
113 (struct parser_state **p);
115 extern void free_current_contents (void *);
117 extern void init_page_info (void);
119 extern struct cleanup *make_cleanup_restore_page_info (void);
120 extern struct cleanup *
121 set_batch_flag_and_make_cleanup_restore_page_info (void);
123 extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
125 /* Path utilities. */
127 extern char *gdb_realpath (const char *);
129 extern char *gdb_realpath_keepfile (const char *);
131 extern char *gdb_abspath (const char *);
133 extern int gdb_filename_fnmatch (const char *pattern, const char *string,
136 extern void substitute_path_component (char **stringp, const char *from,
139 char *ldirname (const char *filename);
141 /* GDB output, ui_file utilities. */
145 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
146 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
147 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
149 extern void begin_line (void);
151 extern void wrap_here (char *);
153 extern void reinitialize_more_filter (void);
155 extern int pagination_enabled;
157 /* Global ui_file streams. These are all defined in main.c. */
159 extern struct ui_file *gdb_stdout;
161 extern struct ui_file *gdb_stdin;
162 /* Serious error notifications */
163 extern struct ui_file *gdb_stderr;
164 /* Log/debug/trace messages that should bypass normal stdout/stderr
165 filtering. For moment, always call this stream using
166 *_unfiltered. In the very near future that restriction shall be
167 removed - either call shall be unfiltered. (cagney 1999-06-13). */
168 extern struct ui_file *gdb_stdlog;
169 /* Target output that should bypass normal stdout/stderr filtering.
170 For moment, always call this stream using *_unfiltered. In the
171 very near future that restriction shall be removed - either call
172 shall be unfiltered. (cagney 1999-07-02). */
173 extern struct ui_file *gdb_stdtarg;
174 extern struct ui_file *gdb_stdtargerr;
175 extern struct ui_file *gdb_stdtargin;
177 /* Set the screen dimensions to WIDTH and HEIGHT. */
179 extern void set_screen_width_and_height (int width, int height);
181 /* More generic printf like operations. Filtered versions may return
182 non-locally on error. */
184 extern void fputs_filtered (const char *, struct ui_file *);
186 extern void fputs_unfiltered (const char *, struct ui_file *);
188 extern int fputc_filtered (int c, struct ui_file *);
190 extern int fputc_unfiltered (int c, struct ui_file *);
192 extern int putchar_filtered (int c);
194 extern int putchar_unfiltered (int c);
196 extern void puts_filtered (const char *);
198 extern void puts_unfiltered (const char *);
200 extern void puts_filtered_tabular (char *string, int width, int right);
202 extern void puts_debug (char *prefix, char *string, char *suffix);
204 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
206 extern void vfprintf_filtered (struct ui_file *, const char *, va_list)
207 ATTRIBUTE_PRINTF (2, 0);
209 extern void fprintf_filtered (struct ui_file *, const char *, ...)
210 ATTRIBUTE_PRINTF (2, 3);
212 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
213 ATTRIBUTE_PRINTF (3, 4);
215 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
217 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
219 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
221 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
222 ATTRIBUTE_PRINTF (2, 0);
224 extern void fprintf_unfiltered (struct ui_file *, const char *, ...)
225 ATTRIBUTE_PRINTF (2, 3);
227 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
229 extern void print_spaces (int, struct ui_file *);
231 extern void print_spaces_filtered (int, struct ui_file *);
233 extern char *n_spaces (int);
235 extern void fputstr_filtered (const char *str, int quotr,
236 struct ui_file * stream);
238 extern void fputstr_unfiltered (const char *str, int quotr,
239 struct ui_file * stream);
241 extern void fputstrn_filtered (const char *str, int n, int quotr,
242 struct ui_file * stream);
244 extern void fputstrn_unfiltered (const char *str, int n, int quotr,
245 struct ui_file * stream);
247 /* Return nonzero if filtered printing is initialized. */
248 extern int filtered_printing_initialized (void);
250 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
251 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
253 /* Convert CORE_ADDR to string in platform-specific manner.
254 This is usually formatted similar to 0x%lx. */
255 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
257 /* Return a string representation in hexadecimal notation of ADDRESS,
258 which is suitable for printing. */
260 extern const char *print_core_address (struct gdbarch *gdbarch,
263 /* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
264 extern hashval_t core_addr_hash (const void *ap);
265 extern int core_addr_eq (const void *ap, const void *bp);
267 extern CORE_ADDR string_to_core_addr (const char *my_string);
269 extern void fprintf_symbol_filtered (struct ui_file *, const char *,
272 extern void throw_perror_with_name (enum errors errcode, const char *string)
275 extern void perror_warning_with_name (const char *string);
277 extern void print_sys_errmsg (const char *, int);
279 /* Warnings and error messages. */
281 extern void (*deprecated_error_begin_hook) (void);
283 /* Message to be printed before the warning message, when a warning occurs. */
285 extern char *warning_pre_print;
287 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
289 extern void demangler_vwarning (const char *file, int line,
290 const char *, va_list ap)
291 ATTRIBUTE_PRINTF (3, 0);
293 extern void demangler_warning (const char *file, int line,
294 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
297 /* Misc. utilities. */
299 /* Allocation and deallocation functions for the libiberty hash table
300 which use obstacks. */
301 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
302 void dummy_obstack_deallocate (void *object, void *data);
305 extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
308 extern int producer_is_gcc_ge_4 (const char *producer);
309 extern int producer_is_gcc (const char *producer, int *major, int *minor);
311 extern int myread (int, char *, int);
313 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
314 power of 2). Round up/down when necessary. Examples of correct
317 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
318 write_memory (addr, value, len);
323 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
324 write_memory (sp, value, len);
326 Note that uses such as:
328 write_memory (addr, value, len);
329 addr += align_up (len, 8);
333 sp -= align_up (len, 8);
334 write_memory (sp, value, len);
336 are typically not correct as they don't ensure that the address (SP
337 or ADDR) is correctly aligned (relying on previous alignment to
338 keep things right). This is also why the methods are called
339 "align_..." instead of "round_..." as the latter reads better with
340 this incorrect coding style. */
342 extern ULONGEST align_up (ULONGEST v, int n);
343 extern ULONGEST align_down (ULONGEST v, int n);
345 /* Resource limits used by getrlimit and setrlimit. */
347 enum resource_limit_kind
353 /* Check whether GDB will be able to dump core using the dump_core
354 function. Returns zero if GDB cannot or should not dump core.
355 If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
356 If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
358 extern int can_dump_core (enum resource_limit_kind limit_kind);
360 /* Print a warning that we cannot dump core. */
362 extern void warn_cant_dump_core (const char *reason);
364 /* Dump core trying to increase the core soft limit to hard limit
367 extern void dump_core (void);
369 /* Return the hex string form of LENGTH bytes of DATA.
370 Space for the result is malloc'd, caller must free. */
372 extern char *make_hex_string (const gdb_byte *data, size_t length);