1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
3 /* I/O, string, cleanup, and other random utilities for GDB.
4 Copyright (C) 1986-2014 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/>. */
25 #include "exceptions.h"
26 #include "print-utils.h"
28 extern void initialize_utils (void);
30 /* String utilities. */
32 extern int sevenbit_strings;
34 extern int strcmp_iw (const char *, const char *);
36 extern int strcmp_iw_ordered (const char *, const char *);
38 extern int streq (const char *, const char *);
40 extern int subset_compare (char *, char *);
42 ULONGEST strtoulst (const char *num, const char **trailer, int base);
44 int compare_positive_ints (const void *ap, const void *bp);
45 int compare_strings (const void *ap, const void *bp);
47 /* This is defined in *-hdep.c, e.g., posix-hdep.c. */
48 extern char *safe_strerror (int);
50 /* A wrapper for bfd_errmsg to produce a more helpful error message
51 in the case of bfd_error_file_ambiguously recognized.
52 MATCHING, if non-NULL, is the corresponding argument to
53 bfd_check_format_matches, and will be freed. */
55 extern const char *gdb_bfd_errmsg (bfd_error_type error_tag, char **matching);
57 /* Reset the prompt_for_continue clock. */
58 void reset_prompt_for_continue_wait_time (void);
59 /* Return the time spent in prompt_for_continue. */
60 struct timeval get_prompt_for_continue_wait_time (void);
62 /* Parsing utilites. */
64 extern int parse_pid_to_attach (const char *args);
66 extern int parse_escape (struct gdbarch *, const char **);
68 char **gdb_buildargv (const char *);
70 /* Cleanup utilities. */
72 extern struct cleanup *make_cleanup_freeargv (char **);
75 extern struct cleanup *make_cleanup_dyn_string_delete (struct dyn_string *);
78 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
81 extern struct cleanup *
82 make_cleanup_ui_out_redirect_pop (struct ui_out *uiout);
84 struct section_addr_info;
85 extern struct cleanup *(make_cleanup_free_section_addr_info
86 (struct section_addr_info *));
88 extern struct cleanup *make_cleanup_close (int fd);
90 extern struct cleanup *make_cleanup_fclose (FILE *file);
92 extern struct cleanup *make_cleanup_bfd_unref (bfd *abfd);
95 extern struct cleanup *make_cleanup_obstack_free (struct obstack *obstack);
97 extern struct cleanup *make_cleanup_restore_integer (int *variable);
98 extern struct cleanup *make_cleanup_restore_uinteger (unsigned int *variable);
101 extern struct cleanup *make_cleanup_unpush_target (struct target_ops *ops);
103 extern struct cleanup *
104 make_cleanup_restore_ui_file (struct ui_file **variable);
106 extern struct cleanup *make_cleanup_value_free_to_mark (struct value *);
107 extern struct cleanup *make_cleanup_value_free (struct value *);
110 extern struct cleanup *make_cleanup_free_so (struct so_list *so);
112 extern struct cleanup *make_cleanup_restore_current_language (void);
114 extern struct cleanup *make_cleanup_htab_delete (htab_t htab);
117 extern struct cleanup *make_cleanup_clear_parser_state
118 (struct parser_state **p);
120 extern void free_current_contents (void *);
122 extern void init_page_info (void);
124 extern struct cleanup *make_cleanup_restore_page_info (void);
125 extern struct cleanup *
126 set_batch_flag_and_make_cleanup_restore_page_info (void);
128 extern struct cleanup *make_bpstat_clear_actions_cleanup (void);
130 /* Path utilities. */
132 extern char *gdb_realpath (const char *);
134 extern char *gdb_realpath_keepfile (const char *);
136 extern char *gdb_abspath (const char *);
138 extern int gdb_filename_fnmatch (const char *pattern, const char *string,
141 extern void substitute_path_component (char **stringp, const char *from,
144 char *ldirname (const char *filename);
146 /* GDB output, ui_file utilities. */
150 extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
151 extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
152 extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
154 extern void begin_line (void);
156 extern void wrap_here (char *);
158 extern void reinitialize_more_filter (void);
160 extern int pagination_enabled;
162 /* Global ui_file streams. These are all defined in main.c. */
164 extern struct ui_file *gdb_stdout;
166 extern struct ui_file *gdb_stdin;
167 /* Serious error notifications */
168 extern struct ui_file *gdb_stderr;
169 /* Log/debug/trace messages that should bypass normal stdout/stderr
170 filtering. For moment, always call this stream using
171 *_unfiltered. In the very near future that restriction shall be
172 removed - either call shall be unfiltered. (cagney 1999-06-13). */
173 extern struct ui_file *gdb_stdlog;
174 /* Target output that should bypass normal stdout/stderr filtering.
175 For moment, always call this stream using *_unfiltered. In the
176 very near future that restriction shall be removed - either call
177 shall be unfiltered. (cagney 1999-07-02). */
178 extern struct ui_file *gdb_stdtarg;
179 extern struct ui_file *gdb_stdtargerr;
180 extern struct ui_file *gdb_stdtargin;
182 /* More generic printf like operations. Filtered versions may return
183 non-locally on error. */
185 extern void fputs_filtered (const char *, struct ui_file *);
187 extern void fputs_unfiltered (const char *, struct ui_file *);
189 extern int fputc_filtered (int c, struct ui_file *);
191 extern int fputc_unfiltered (int c, struct ui_file *);
193 extern int putchar_filtered (int c);
195 extern int putchar_unfiltered (int c);
197 extern void puts_filtered (const char *);
199 extern void puts_unfiltered (const char *);
201 extern void puts_filtered_tabular (char *string, int width, int right);
203 extern void puts_debug (char *prefix, char *string, char *suffix);
205 extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
207 extern void vfprintf_filtered (struct ui_file *, const char *, va_list)
208 ATTRIBUTE_PRINTF (2, 0);
210 extern void fprintf_filtered (struct ui_file *, const char *, ...)
211 ATTRIBUTE_PRINTF (2, 3);
213 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...)
214 ATTRIBUTE_PRINTF (3, 4);
216 extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
218 extern void printfi_filtered (int, const char *, ...) ATTRIBUTE_PRINTF (2, 3);
220 extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0);
222 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list)
223 ATTRIBUTE_PRINTF (2, 0);
225 extern void fprintf_unfiltered (struct ui_file *, const char *, ...)
226 ATTRIBUTE_PRINTF (2, 3);
228 extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
230 extern void print_spaces (int, struct ui_file *);
232 extern void print_spaces_filtered (int, struct ui_file *);
234 extern char *n_spaces (int);
236 extern void fputstr_filtered (const char *str, int quotr,
237 struct ui_file * stream);
239 extern void fputstr_unfiltered (const char *str, int quotr,
240 struct ui_file * stream);
242 extern void fputstrn_filtered (const char *str, int n, int quotr,
243 struct ui_file * stream);
245 extern void fputstrn_unfiltered (const char *str, int n, int quotr,
246 struct ui_file * stream);
248 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
249 extern void gdb_print_host_address (const void *addr, struct ui_file *stream);
251 /* Convert CORE_ADDR to string in platform-specific manner.
252 This is usually formatted similar to 0x%lx. */
253 extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr);
255 /* Return a string representation in hexadecimal notation of ADDRESS,
256 which is suitable for printing. */
258 extern const char *print_core_address (struct gdbarch *gdbarch,
261 /* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */
262 extern hashval_t core_addr_hash (const void *ap);
263 extern int core_addr_eq (const void *ap, const void *bp);
265 extern CORE_ADDR string_to_core_addr (const char *my_string);
267 extern void fprintf_symbol_filtered (struct ui_file *, const char *,
270 extern void throw_perror_with_name (enum errors errcode, const char *string)
272 extern void perror_with_name (const char *) ATTRIBUTE_NORETURN;
274 extern void perror_warning_with_name (const char *string);
276 extern void print_sys_errmsg (const char *, int);
278 /* Warnings and error messages. */
280 extern void (*deprecated_error_begin_hook) (void);
282 /* Message to be printed before the warning message, when a warning occurs. */
284 extern char *warning_pre_print;
286 extern void verror (const char *fmt, va_list ap)
287 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 0);
289 extern void error (const char *fmt, ...)
290 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (1, 2);
292 extern void error_stream (struct ui_file *) ATTRIBUTE_NORETURN;
294 extern void internal_verror (const char *file, int line, const char *,
296 ATTRIBUTE_NORETURN ATTRIBUTE_PRINTF (3, 0);
298 extern void internal_vwarning (const char *file, int line,
299 const char *, va_list ap)
300 ATTRIBUTE_PRINTF (3, 0);
302 extern void internal_warning (const char *file, int line,
303 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
305 extern void warning (const char *, ...) ATTRIBUTE_PRINTF (1, 2);
307 extern void vwarning (const char *, va_list args) ATTRIBUTE_PRINTF (1, 0);
309 extern void demangler_vwarning (const char *file, int line,
310 const char *, va_list ap)
311 ATTRIBUTE_PRINTF (3, 0);
313 extern void demangler_warning (const char *file, int line,
314 const char *, ...) ATTRIBUTE_PRINTF (3, 4);
317 /* Misc. utilities. */
319 /* Allocation and deallocation functions for the libiberty hash table
320 which use obstacks. */
321 void *hashtab_obstack_allocate (void *data, size_t size, size_t count);
322 void dummy_obstack_deallocate (void *object, void *data);
325 extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout);
328 extern int producer_is_gcc_ge_4 (const char *producer);
330 extern int myread (int, char *, int);
332 /* Ensure that V is aligned to an N byte boundary (B's assumed to be a
333 power of 2). Round up/down when necessary. Examples of correct
336 addr = align_up (addr, 8); -- VALUE needs 8 byte alignment
337 write_memory (addr, value, len);
342 sp = align_down (sp - len, 16); -- Keep SP 16 byte aligned
343 write_memory (sp, value, len);
345 Note that uses such as:
347 write_memory (addr, value, len);
348 addr += align_up (len, 8);
352 sp -= align_up (len, 8);
353 write_memory (sp, value, len);
355 are typically not correct as they don't ensure that the address (SP
356 or ADDR) is correctly aligned (relying on previous alignment to
357 keep things right). This is also why the methods are called
358 "align_..." instead of "round_..." as the latter reads better with
359 this incorrect coding style. */
361 extern ULONGEST align_up (ULONGEST v, int n);
362 extern ULONGEST align_down (ULONGEST v, int n);
364 /* Sign extend VALUE. BIT is the (1-based) index of the bit in VALUE
367 extern LONGEST gdb_sign_extend (LONGEST value, int bit);
369 /* Resource limits used by getrlimit and setrlimit. */
371 enum resource_limit_kind
377 /* Check whether GDB will be able to dump core using the dump_core
378 function. Returns zero if GDB cannot or should not dump core.
379 If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
380 If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
382 extern int can_dump_core (enum resource_limit_kind limit_kind);
384 /* Print a warning that we cannot dump core. */
386 extern void warn_cant_dump_core (const char *reason);
388 /* Dump core trying to increase the core soft limit to hard limit
391 extern void dump_core (void);