1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
3 /* I/O, string, cleanup, and other random utilities for GDB.
4 Copyright (C) 1986-2016 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 int compare_positive_ints (const void *ap, const void *bp);
41 int compare_strings (const void *ap, const void *bp);
43 /* A wrapper for bfd_errmsg to produce a more helpful error message
44 in the case of bfd_error_file_ambiguously recognized.
45 MATCHING, if non-NULL, is the corresponding argument to
46 bfd_check_format_matches, and will be freed. */
48 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
50 /* Reset the prompt_for_continue clock. */
51 void reset_prompt_for_continue_wait_time (void);
52 /* Return the time spent in prompt_for_continue. */
53 struct timeval get_prompt_for_continue_wait_time (void);
55 /* Parsing utilites. */
57 extern int parse_pid_to_attach (const char *args);
59 extern int parse_escape (struct gdbarch *, const char **);
61 char **gdb_buildargv (const char *);
63 /* Cleanup utilities. */
65 extern struct cleanup *make_cleanup_freeargv (char **);
68 extern struct cleanup *make_cleanup_dyn_string_delete (struct dyn_string *);
71 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
74 extern struct cleanup *
75 make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
77 struct section_addr_info;
78 extern struct cleanup *(make_cleanup_free_section_addr_info
79 (struct section_addr_info *));
81 /* For make_cleanup_close see common/filestuff.h. */
83 extern struct cleanup *make_cleanup_fclose (FILE *file);
85 extern struct cleanup *make_cleanup_bfd_unref (bfd *abfd);
88 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);
90 extern struct cleanup *make_cleanup_restore_integer (int *variable);
91 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);
94 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
96 extern struct cleanup *
97 make_cleanup_restore_ui_file (struct ui_file **variable);
99 extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
100 extern struct cleanup *make_cleanup_value_free (struct value *);
103 extern struct cleanup *make_cleanup_free_so (struct so_list *so);
105 extern struct cleanup *make_cleanup_restore_current_language (void);
107 extern struct cleanup *make_cleanup_htab_delete (htab_t htab);
110 extern struct cleanup *make_cleanup_clear_parser_state
111 (struct parser_state **p);
113 extern void free_current_contents (void *);
115 extern void init_page_info (void);
117 extern struct cleanup *make_cleanup_restore_page_info (void);
118 extern struct cleanup *
119 set_batch_flag_and_make_cleanup_restore_page_info (void);
121 extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
123 /* Path utilities. */
125 extern char *gdb_realpath (const char *);
127 extern char *gdb_realpath_keepfile (const char *);
129 extern char *gdb_abspath (const char *);
131 extern int gdb_filename_fnmatch (const char *pattern, const char *string,
134 extern void substitute_path_component (char **stringp, const char *from,
137 char *ldirname (const char *filename);
139 extern int count_path_elements (const char *path);
141 extern const char *strip_leading_path_elements (const char *path, int n);
143 /* GDB output, ui_file utilities. */
147 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
148 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
149 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
151 extern void begin_line (void);
153 extern void wrap_here (char *);
155 extern void reinitialize_more_filter (void);
157 extern int pagination_enabled;
159 extern struct ui_file **current_ui_gdb_stdout_ptr (void);
160 extern struct ui_file **current_ui_gdb_stdin_ptr (void);
161 extern struct ui_file **current_ui_gdb_stderr_ptr (void);
162 extern struct ui_file **current_ui_gdb_stdlog_ptr (void);
164 /* The current top level's ui_file streams. */
167 #define gdb_stdout (*current_ui_gdb_stdout_ptr ())
169 #define gdb_stdin (*current_ui_gdb_stdin_ptr ())
170 /* Serious error notifications */
171 #define gdb_stderr (*current_ui_gdb_stderr_ptr ())
172 /* Log/debug/trace messages that should bypass normal stdout/stderr
173 filtering. For moment, always call this stream using
174 *_unfiltered. In the very near future that restriction shall be
175 removed - either call shall be unfiltered. (cagney 1999-06-13). */
176 #define gdb_stdlog (*current_ui_gdb_stdlog_ptr ())
178 /* Truly global ui_file streams. These are all defined in main.c. */
180 /* Target output that should bypass normal stdout/stderr filtering.
181 For moment, always call this stream using *_unfiltered. In the
182 very near future that restriction shall be removed - either call
183 shall be unfiltered. (cagney 1999-07-02). */
184 extern struct ui_file *gdb_stdtarg;
185 extern struct ui_file *gdb_stdtargerr;
186 extern struct ui_file *gdb_stdtargin;
188 /* Set the screen dimensions to WIDTH and HEIGHT. */
190 extern void set_screen_width_and_height (int width, int height);
192 /* More generic printf like operations. Filtered versions may return
193 non-locally on error. */
195 extern void fputs_filtered (const char *, struct ui_file *);
197 extern void fputs_unfiltered (const char *, struct ui_file *);
199 extern int fputc_filtered (int c, struct ui_file *);
201 extern int fputc_unfiltered (int c, struct ui_file *);
203 extern int putchar_filtered (int c);
205 extern int putchar_unfiltered (int c);
207 extern void puts_filtered (const char *);
209 extern void puts_unfiltered (const char *);
211 extern void puts_filtered_tabular (char *string, int width, int right);
213 extern void puts_debug (char *prefix, char *string, char *suffix);
215 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
217 extern void vfprintf_filtered (struct ui_file *, const char *, va_list)
218 ATTRIBUTE_PRINTF (2, 0);
220 extern void fprintf_filtered (struct ui_file *, const char *, ...)
221 ATTRIBUTE_PRINTF (2, 3);
223 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
224 ATTRIBUTE_PRINTF (3, 4);
226 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
228 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
230 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
232 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
233 ATTRIBUTE_PRINTF (2, 0);
235 extern void fprintf_unfiltered (struct ui_file *, const char *, ...)
236 ATTRIBUTE_PRINTF (2, 3);
238 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
240 extern void print_spaces (int, struct ui_file *);
242 extern void print_spaces_filtered (int, struct ui_file *);
244 extern char *n_spaces (int);
246 extern void fputstr_filtered (const char *str, int quotr,
247 struct ui_file * stream);
249 extern void fputstr_unfiltered (const char *str, int quotr,
250 struct ui_file * stream);
252 extern void fputstrn_filtered (const char *str, int n, int quotr,
253 struct ui_file * stream);
255 extern void fputstrn_unfiltered (const char *str, int n, int quotr,
256 struct ui_file * stream);
258 /* Return nonzero if filtered printing is initialized. */
259 extern int filtered_printing_initialized (void);
261 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
262 extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream);
264 /* Wrapper that avoids adding a pointless cast to all callers. */
265 #define gdb_print_host_address(ADDR, STREAM) \
266 gdb_print_host_address_1 ((const void *) ADDR, STREAM)
268 /* Convert CORE_ADDR to string in platform-specific manner.
269 This is usually formatted similar to 0x%lx. */
270 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
272 /* Return a string representation in hexadecimal notation of ADDRESS,
273 which is suitable for printing. */
275 extern const char *print_core_address (struct gdbarch *gdbarch,
278 /* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
279 extern hashval_t core_addr_hash (const void *ap);
280 extern int core_addr_eq (const void *ap, const void *bp);
282 extern CORE_ADDR string_to_core_addr (const char *my_string);
284 extern void fprintf_symbol_filtered (struct ui_file *, const char *,
287 extern void throw_perror_with_name (enum errors errcode, const char *string)
290 extern void perror_warning_with_name (const char *string);
292 extern void print_sys_errmsg (const char *, int);
294 /* Warnings and error messages. */
296 extern void (*deprecated_error_begin_hook) (void);
298 /* Message to be printed before the warning message, when a warning occurs. */
300 extern char *warning_pre_print;
302 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
304 extern void demangler_vwarning (const char *file, int line,
305 const char *, va_list ap)
306 ATTRIBUTE_PRINTF (3, 0);
308 extern void demangler_warning (const char *file, int line,
309 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
312 /* Misc. utilities. */
314 /* Allocation and deallocation functions for the libiberty hash table
315 which use obstacks. */
316 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
317 void dummy_obstack_deallocate (void *object, void *data);
320 extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
323 extern int producer_is_gcc_ge_4 (const char *producer);
324 extern int producer_is_gcc (const char *producer, int *major, int *minor);
326 extern int myread (int, char *, int);
328 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
329 power of 2). Round up/down when necessary. Examples of correct
332 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
333 write_memory (addr, value, len);
338 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
339 write_memory (sp, value, len);
341 Note that uses such as:
343 write_memory (addr, value, len);
344 addr += align_up (len, 8);
348 sp -= align_up (len, 8);
349 write_memory (sp, value, len);
351 are typically not correct as they don't ensure that the address (SP
352 or ADDR) is correctly aligned (relying on previous alignment to
353 keep things right). This is also why the methods are called
354 "align_..." instead of "round_..." as the latter reads better with
355 this incorrect coding style. */
357 extern ULONGEST align_up (ULONGEST v, int n);
358 extern ULONGEST align_down (ULONGEST v, int n);
360 /* Resource limits used by getrlimit and setrlimit. */
362 enum resource_limit_kind
368 /* Check whether GDB will be able to dump core using the dump_core
369 function. Returns zero if GDB cannot or should not dump core.
370 If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
371 If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
373 extern int can_dump_core (enum resource_limit_kind limit_kind);
375 /* Print a warning that we cannot dump core. */
377 extern void warn_cant_dump_core (const char *reason);
379 /* Dump core trying to increase the core soft limit to hard limit
382 extern void dump_core (void);
384 /* Return the hex string form of LENGTH bytes of DATA.
385 Space for the result is malloc'd, caller must free. */
387 extern char *make_hex_string (const gdb_byte *data, size_t length);