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48faced0 DE |
1 | /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it |
2 | for now. */ | |
3 | /* I/O, string, cleanup, and other random utilities for GDB. | |
3666a048 | 4 | Copyright (C) 1986-2021 Free Software Foundation, Inc. |
48faced0 DE |
5 | |
6 | This file is part of GDB. | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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/>. */ | |
20 | ||
21 | #ifndef UTILS_H | |
22 | #define UTILS_H | |
23 | ||
af880d85 | 24 | #include "exceptions.h" |
d369b608 | 25 | #include "gdbsupport/array-view.h" |
268a13a5 | 26 | #include "gdbsupport/scoped_restore.h" |
dcb07cfa | 27 | #include <chrono> |
48faced0 | 28 | |
3a494279 CB |
29 | #ifdef HAVE_LIBXXHASH |
30 | #include <xxhash.h> | |
31 | #endif | |
32 | ||
0d12e84c TT |
33 | struct completion_match_for_lcd; |
34 | class compiled_regex; | |
35 | ||
48faced0 DE |
36 | /* String utilities. */ |
37 | ||
491144b5 | 38 | extern bool sevenbit_strings; |
48faced0 | 39 | |
b5ec771e PA |
40 | /* Modes of operation for strncmp_iw_with_mode. */ |
41 | ||
42 | enum class strncmp_iw_mode | |
43 | { | |
44 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
45 | differences in whitespace. Returns 0 if they match, non-zero if | |
46 | they don't (slightly different than strcmp()'s range of return | |
47 | values). */ | |
48 | NORMAL, | |
49 | ||
50 | /* Like NORMAL, but also apply the strcmp_iw hack. I.e., | |
51 | string1=="FOO(PARAMS)" matches string2=="FOO". */ | |
52 | MATCH_PARAMS, | |
53 | }; | |
54 | ||
55 | /* Helper for strcmp_iw and strncmp_iw. Exported so that languages | |
56 | can implement both NORMAL and MATCH_PARAMS variants in a single | |
0662b6a7 | 57 | function and defer part of the work to strncmp_iw_with_mode. |
bd69330d | 58 | |
0662b6a7 PA |
59 | LANGUAGE is used to implement some context-sensitive |
60 | language-specific comparisons. For example, for C++, | |
61 | "string1=operator()" should not match "string2=operator" even in | |
bd69330d PA |
62 | MATCH_PARAMS mode. |
63 | ||
64 | MATCH_FOR_LCD is passed down so that the function can mark parts of | |
65 | the symbol name as ignored for completion matching purposes (e.g., | |
66 | to handle abi tags). */ | |
67 | extern int strncmp_iw_with_mode | |
68 | (const char *string1, const char *string2, size_t string2_len, | |
69 | strncmp_iw_mode mode, enum language language, | |
70 | completion_match_for_lcd *match_for_lcd = NULL); | |
b5ec771e | 71 | |
1d550c82 PA |
72 | /* Do a strncmp() type operation on STRING1 and STRING2, ignoring any |
73 | differences in whitespace. STRING2_LEN is STRING2's length. | |
74 | Returns 0 if STRING1 matches STRING2_LEN characters of STRING2, | |
75 | non-zero otherwise (slightly different than strncmp()'s range of | |
0662b6a7 PA |
76 | return values). Note: passes language_minimal to |
77 | strncmp_iw_with_mode, and should therefore be avoided if a more | |
78 | suitable language is available. */ | |
1d550c82 PA |
79 | extern int strncmp_iw (const char *string1, const char *string2, |
80 | size_t string2_len); | |
81 | ||
82 | /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any | |
83 | differences in whitespace. Returns 0 if they match, non-zero if | |
84 | they don't (slightly different than strcmp()'s range of return | |
85 | values). | |
86 | ||
87 | As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO". | |
88 | This "feature" is useful when searching for matching C++ function | |
89 | names (such as if the user types 'break FOO', where FOO is a | |
0662b6a7 PA |
90 | mangled C++ function). |
91 | ||
92 | Note: passes language_minimal to strncmp_iw_with_mode, and should | |
93 | therefore be avoided if a more suitable language is available. */ | |
1d550c82 | 94 | extern int strcmp_iw (const char *string1, const char *string2); |
48faced0 DE |
95 | |
96 | extern int strcmp_iw_ordered (const char *, const char *); | |
97 | ||
459a2e4c TT |
98 | /* Return true if the strings are equal. */ |
99 | ||
100 | extern bool streq (const char *, const char *); | |
101 | ||
a121b7c1 | 102 | extern int subset_compare (const char *, const char *); |
48faced0 | 103 | |
47e77640 PA |
104 | /* Compare C strings for std::sort. */ |
105 | ||
106 | static inline bool | |
107 | compare_cstrings (const char *str1, const char *str2) | |
108 | { | |
109 | return strcmp (str1, str2) < 0; | |
110 | } | |
111 | ||
48faced0 DE |
112 | /* A wrapper for bfd_errmsg to produce a more helpful error message |
113 | in the case of bfd_error_file_ambiguously recognized. | |
114 | MATCHING, if non-NULL, is the corresponding argument to | |
115 | bfd_check_format_matches, and will be freed. */ | |
116 | ||
803c08d0 | 117 | extern std::string gdb_bfd_errmsg (bfd_error_type error_tag, char **matching); |
bd712aed DE |
118 | |
119 | /* Reset the prompt_for_continue clock. */ | |
120 | void reset_prompt_for_continue_wait_time (void); | |
121 | /* Return the time spent in prompt_for_continue. */ | |
dcb07cfa | 122 | std::chrono::steady_clock::duration get_prompt_for_continue_wait_time (); |
48faced0 | 123 | \f |
30baf67b | 124 | /* Parsing utilities. */ |
48faced0 | 125 | |
c0939df1 | 126 | extern int parse_pid_to_attach (const char *args); |
48faced0 | 127 | |
d7561cbb | 128 | extern int parse_escape (struct gdbarch *, const char **); |
48faced0 | 129 | |
773a1edc TT |
130 | /* A wrapper for an array of char* that was allocated in the way that |
131 | 'buildargv' does, and should be freed with 'freeargv'. */ | |
132 | ||
133 | class gdb_argv | |
134 | { | |
135 | public: | |
136 | ||
137 | /* A constructor that initializes to NULL. */ | |
138 | ||
139 | gdb_argv () | |
140 | : m_argv (NULL) | |
141 | { | |
142 | } | |
143 | ||
144 | /* A constructor that calls buildargv on STR. STR may be NULL, in | |
d61df897 | 145 | which case this object is initialized with a NULL array. */ |
773a1edc TT |
146 | |
147 | explicit gdb_argv (const char *str) | |
148 | : m_argv (NULL) | |
149 | { | |
150 | reset (str); | |
151 | } | |
152 | ||
153 | /* A constructor that takes ownership of an existing array. */ | |
154 | ||
155 | explicit gdb_argv (char **array) | |
156 | : m_argv (array) | |
157 | { | |
158 | } | |
159 | ||
160 | gdb_argv (const gdb_argv &) = delete; | |
161 | gdb_argv &operator= (const gdb_argv &) = delete; | |
162 | ||
bac51ab7 TT |
163 | gdb_argv &operator= (gdb_argv &&other) |
164 | { | |
165 | freeargv (m_argv); | |
166 | m_argv = other.m_argv; | |
167 | other.m_argv = nullptr; | |
168 | return *this; | |
169 | } | |
170 | ||
171 | gdb_argv (gdb_argv &&other) | |
172 | { | |
173 | m_argv = other.m_argv; | |
174 | other.m_argv = nullptr; | |
175 | } | |
176 | ||
773a1edc TT |
177 | ~gdb_argv () |
178 | { | |
179 | freeargv (m_argv); | |
180 | } | |
181 | ||
182 | /* Call buildargv on STR, storing the result in this object. Any | |
183 | previous state is freed. STR may be NULL, in which case this | |
184 | object is reset with a NULL array. If buildargv fails due to | |
185 | out-of-memory, call malloc_failure. Therefore, the value is | |
186 | guaranteed to be non-NULL, unless the parameter itself is | |
187 | NULL. */ | |
188 | ||
189 | void reset (const char *str); | |
190 | ||
191 | /* Return the underlying array. */ | |
192 | ||
193 | char **get () | |
194 | { | |
195 | return m_argv; | |
196 | } | |
197 | ||
198 | /* Return the underlying array, transferring ownership to the | |
199 | caller. */ | |
200 | ||
18cb7c9f | 201 | ATTRIBUTE_UNUSED_RESULT char **release () |
773a1edc TT |
202 | { |
203 | char **result = m_argv; | |
204 | m_argv = NULL; | |
205 | return result; | |
206 | } | |
207 | ||
208 | /* Return the number of items in the array. */ | |
209 | ||
210 | int count () const | |
211 | { | |
212 | return countargv (m_argv); | |
213 | } | |
214 | ||
215 | /* Index into the array. */ | |
216 | ||
217 | char *operator[] (int arg) | |
218 | { | |
219 | gdb_assert (m_argv != NULL); | |
220 | return m_argv[arg]; | |
221 | } | |
222 | ||
d369b608 SM |
223 | /* Return the arguments array as an array view. */ |
224 | ||
225 | gdb::array_view<char *> as_array_view () | |
226 | { | |
227 | return gdb::array_view<char *> (this->get (), this->count ()); | |
228 | } | |
229 | ||
bac51ab7 TT |
230 | /* Append arguments to this array. */ |
231 | void append (gdb_argv &&other) | |
232 | { | |
233 | int size = count (); | |
234 | int argc = other.count (); | |
235 | m_argv = XRESIZEVEC (char *, m_argv, (size + argc + 1)); | |
236 | ||
237 | for (int argi = 0; argi < argc; argi++) | |
238 | { | |
239 | /* Transfer ownership of the string. */ | |
240 | m_argv[size++] = other.m_argv[argi]; | |
241 | /* Ensure that destruction of OTHER works correctly. */ | |
242 | other.m_argv[argi] = nullptr; | |
243 | } | |
244 | m_argv[size] = nullptr; | |
245 | } | |
246 | ||
247 | /* Append arguments to this array. */ | |
248 | void append (const gdb_argv &other) | |
249 | { | |
250 | int size = count (); | |
251 | int argc = other.count (); | |
252 | m_argv = XRESIZEVEC (char *, m_argv, (size + argc + 1)); | |
253 | ||
254 | for (int argi = 0; argi < argc; argi++) | |
255 | m_argv[size++] = xstrdup (other.m_argv[argi]); | |
256 | m_argv[size] = nullptr; | |
257 | } | |
258 | ||
773a1edc TT |
259 | /* The iterator type. */ |
260 | ||
261 | typedef char **iterator; | |
262 | ||
263 | /* Return an iterator pointing to the start of the array. */ | |
264 | ||
265 | iterator begin () | |
266 | { | |
267 | return m_argv; | |
268 | } | |
269 | ||
270 | /* Return an iterator pointing to the end of the array. */ | |
271 | ||
272 | iterator end () | |
273 | { | |
274 | return m_argv + count (); | |
275 | } | |
276 | ||
91975afd | 277 | bool operator!= (std::nullptr_t) |
773a1edc TT |
278 | { |
279 | return m_argv != NULL; | |
280 | } | |
281 | ||
91975afd | 282 | bool operator== (std::nullptr_t) |
773a1edc TT |
283 | { |
284 | return m_argv == NULL; | |
285 | } | |
286 | ||
287 | private: | |
288 | ||
289 | /* The wrapped array. */ | |
290 | ||
291 | char **m_argv; | |
292 | }; | |
293 | ||
48faced0 DE |
294 | \f |
295 | /* Cleanup utilities. */ | |
296 | ||
6349f452 TT |
297 | /* A deleter for a hash table. */ |
298 | struct htab_deleter | |
299 | { | |
300 | void operator() (htab *ptr) const | |
301 | { | |
302 | htab_delete (ptr); | |
303 | } | |
304 | }; | |
305 | ||
306 | /* A unique_ptr wrapper for htab_t. */ | |
307 | typedef std::unique_ptr<htab, htab_deleter> htab_up; | |
308 | ||
ef5f598c TT |
309 | /* A wrapper for 'delete' that can used as a hash table entry deletion |
310 | function. */ | |
311 | template<typename T> | |
312 | void | |
313 | htab_delete_entry (void *ptr) | |
314 | { | |
315 | delete (T *) ptr; | |
316 | } | |
317 | ||
48faced0 DE |
318 | extern void init_page_info (void); |
319 | ||
b95de2b7 TT |
320 | /* Temporarily set BATCH_FLAG and the associated unlimited terminal size. |
321 | Restore when destroyed. */ | |
322 | ||
323 | struct set_batch_flag_and_restore_page_info | |
324 | { | |
325 | public: | |
326 | ||
327 | set_batch_flag_and_restore_page_info (); | |
328 | ~set_batch_flag_and_restore_page_info (); | |
329 | ||
330 | DISABLE_COPY_AND_ASSIGN (set_batch_flag_and_restore_page_info); | |
331 | ||
332 | private: | |
333 | ||
334 | /* Note that this doesn't use scoped_restore, because it's important | |
335 | to control the ordering of operations in the destruction, and it | |
336 | was simpler to avoid introducing a new ad hoc class. */ | |
337 | unsigned m_save_lines_per_page; | |
338 | unsigned m_save_chars_per_line; | |
339 | int m_save_batch_flag; | |
340 | }; | |
48faced0 | 341 | |
48faced0 DE |
342 | \f |
343 | /* Path utilities. */ | |
344 | ||
48faced0 DE |
345 | extern int gdb_filename_fnmatch (const char *pattern, const char *string, |
346 | int flags); | |
347 | ||
348 | extern void substitute_path_component (char **stringp, const char *from, | |
349 | const char *to); | |
350 | ||
d721ba37 | 351 | std::string ldirname (const char *filename); |
cce0e923 DE |
352 | |
353 | extern int count_path_elements (const char *path); | |
354 | ||
355 | extern const char *strip_leading_path_elements (const char *path, int n); | |
48faced0 DE |
356 | \f |
357 | /* GDB output, ui_file utilities. */ | |
358 | ||
359 | struct ui_file; | |
360 | ||
48faced0 DE |
361 | extern int query (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
362 | extern int nquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2); | |
363 | extern int yquery (const char *, ...) ATTRIBUTE_PRINTF (1, 2); | |
364 | ||
365 | extern void begin_line (void); | |
366 | ||
d2c0eef4 | 367 | extern void wrap_here (const char *); |
48faced0 DE |
368 | |
369 | extern void reinitialize_more_filter (void); | |
370 | ||
2f228731 TT |
371 | /* Return the number of characters in a line. */ |
372 | ||
373 | extern int get_chars_per_line (); | |
374 | ||
491144b5 | 375 | extern bool pagination_enabled; |
74da6f00 | 376 | |
79aa2fe8 PA |
377 | extern struct ui_file **current_ui_gdb_stdout_ptr (void); |
378 | extern struct ui_file **current_ui_gdb_stdin_ptr (void); | |
379 | extern struct ui_file **current_ui_gdb_stderr_ptr (void); | |
380 | extern struct ui_file **current_ui_gdb_stdlog_ptr (void); | |
381 | ||
faa17681 IB |
382 | /* Flush STREAM. This is a wrapper for ui_file_flush that also |
383 | flushes any output pending from uses of the *_filtered output | |
384 | functions; that output is kept in a special buffer so that | |
385 | pagination and styling are handled properly. */ | |
386 | extern void gdb_flush (struct ui_file *); | |
387 | ||
79aa2fe8 PA |
388 | /* The current top level's ui_file streams. */ |
389 | ||
48faced0 | 390 | /* Normal results */ |
79aa2fe8 | 391 | #define gdb_stdout (*current_ui_gdb_stdout_ptr ()) |
48faced0 | 392 | /* Input stream */ |
79aa2fe8 | 393 | #define gdb_stdin (*current_ui_gdb_stdin_ptr ()) |
48faced0 | 394 | /* Serious error notifications */ |
79aa2fe8 | 395 | #define gdb_stderr (*current_ui_gdb_stderr_ptr ()) |
48faced0 DE |
396 | /* Log/debug/trace messages that should bypass normal stdout/stderr |
397 | filtering. For moment, always call this stream using | |
398 | *_unfiltered. In the very near future that restriction shall be | |
399 | removed - either call shall be unfiltered. (cagney 1999-06-13). */ | |
79aa2fe8 PA |
400 | #define gdb_stdlog (*current_ui_gdb_stdlog_ptr ()) |
401 | ||
402 | /* Truly global ui_file streams. These are all defined in main.c. */ | |
403 | ||
48faced0 DE |
404 | /* Target output that should bypass normal stdout/stderr filtering. |
405 | For moment, always call this stream using *_unfiltered. In the | |
406 | very near future that restriction shall be removed - either call | |
407 | shall be unfiltered. (cagney 1999-07-02). */ | |
408 | extern struct ui_file *gdb_stdtarg; | |
409 | extern struct ui_file *gdb_stdtargerr; | |
410 | extern struct ui_file *gdb_stdtargin; | |
411 | ||
d6e5e7f7 PP |
412 | /* Set the screen dimensions to WIDTH and HEIGHT. */ |
413 | ||
414 | extern void set_screen_width_and_height (int width, int height); | |
415 | ||
48faced0 | 416 | /* More generic printf like operations. Filtered versions may return |
2a3c1174 PA |
417 | non-locally on error. As an extension over plain printf, these |
418 | support some GDB-specific format specifiers. Particularly useful | |
419 | here are the styling formatters: '%p[', '%p]' and '%ps'. See | |
420 | ui_out::message for details. */ | |
48faced0 DE |
421 | |
422 | extern void fputs_filtered (const char *, struct ui_file *); | |
423 | ||
424 | extern void fputs_unfiltered (const char *, struct ui_file *); | |
425 | ||
426 | extern int fputc_filtered (int c, struct ui_file *); | |
427 | ||
428 | extern int fputc_unfiltered (int c, struct ui_file *); | |
429 | ||
430 | extern int putchar_filtered (int c); | |
431 | ||
432 | extern int putchar_unfiltered (int c); | |
433 | ||
434 | extern void puts_filtered (const char *); | |
435 | ||
436 | extern void puts_unfiltered (const char *); | |
437 | ||
438 | extern void puts_filtered_tabular (char *string, int width, int right); | |
439 | ||
440 | extern void puts_debug (char *prefix, char *string, char *suffix); | |
441 | ||
442 | extern void vprintf_filtered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0); | |
443 | ||
444 | extern void vfprintf_filtered (struct ui_file *, const char *, va_list) | |
445 | ATTRIBUTE_PRINTF (2, 0); | |
446 | ||
447 | extern void fprintf_filtered (struct ui_file *, const char *, ...) | |
448 | ATTRIBUTE_PRINTF (2, 3); | |
449 | ||
48faced0 DE |
450 | extern void printf_filtered (const char *, ...) ATTRIBUTE_PRINTF (1, 2); |
451 | ||
48faced0 DE |
452 | extern void vprintf_unfiltered (const char *, va_list) ATTRIBUTE_PRINTF (1, 0); |
453 | ||
454 | extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) | |
455 | ATTRIBUTE_PRINTF (2, 0); | |
456 | ||
457 | extern void fprintf_unfiltered (struct ui_file *, const char *, ...) | |
458 | ATTRIBUTE_PRINTF (2, 3); | |
459 | ||
460 | extern void printf_unfiltered (const char *, ...) ATTRIBUTE_PRINTF (1, 2); | |
461 | ||
462 | extern void print_spaces (int, struct ui_file *); | |
463 | ||
464 | extern void print_spaces_filtered (int, struct ui_file *); | |
465 | ||
466 | extern char *n_spaces (int); | |
467 | ||
468 | extern void fputstr_filtered (const char *str, int quotr, | |
469 | struct ui_file * stream); | |
470 | ||
471 | extern void fputstr_unfiltered (const char *str, int quotr, | |
472 | struct ui_file * stream); | |
473 | ||
474 | extern void fputstrn_filtered (const char *str, int n, int quotr, | |
475 | struct ui_file * stream); | |
476 | ||
7c4e78cf SM |
477 | typedef int (*do_fputc_ftype) (int c, ui_file *stream); |
478 | ||
48faced0 | 479 | extern void fputstrn_unfiltered (const char *str, int n, int quotr, |
7c4e78cf | 480 | do_fputc_ftype do_fputc, |
48faced0 DE |
481 | struct ui_file * stream); |
482 | ||
2437fd32 GB |
483 | /* Return nonzero if filtered printing is initialized. */ |
484 | extern int filtered_printing_initialized (void); | |
485 | ||
cbe56571 TT |
486 | /* Like fprintf_filtered, but styles the output according to STYLE, |
487 | when appropriate. */ | |
488 | ||
489 | extern void fprintf_styled (struct ui_file *stream, | |
490 | const ui_file_style &style, | |
491 | const char *fmt, | |
492 | ...) | |
493 | ATTRIBUTE_PRINTF (3, 4); | |
494 | ||
2a3c1174 PA |
495 | extern void vfprintf_styled (struct ui_file *stream, |
496 | const ui_file_style &style, | |
497 | const char *fmt, | |
498 | va_list args) | |
499 | ATTRIBUTE_PRINTF (3, 0); | |
500 | ||
501 | /* Like vfprintf_styled, but do not process gdb-specific format | |
502 | specifiers. */ | |
503 | extern void vfprintf_styled_no_gdbfmt (struct ui_file *stream, | |
504 | const ui_file_style &style, | |
505 | bool filter, | |
506 | const char *fmt, va_list args) | |
507 | ATTRIBUTE_PRINTF (4, 0); | |
508 | ||
cbe56571 TT |
509 | /* Like fputs_filtered, but styles the output according to STYLE, when |
510 | appropriate. */ | |
511 | ||
512 | extern void fputs_styled (const char *linebuffer, | |
513 | const ui_file_style &style, | |
514 | struct ui_file *stream); | |
515 | ||
2a3c1174 PA |
516 | /* Unfiltered variant of fputs_styled. */ |
517 | ||
518 | extern void fputs_styled_unfiltered (const char *linebuffer, | |
519 | const ui_file_style &style, | |
520 | struct ui_file *stream); | |
521 | ||
9303eb2f PW |
522 | /* Like fputs_styled, but uses highlight_style to highlight the |
523 | parts of STR that match HIGHLIGHT. */ | |
524 | ||
525 | extern void fputs_highlighted (const char *str, const compiled_regex &highlight, | |
526 | struct ui_file *stream); | |
527 | ||
ef1dfa36 TT |
528 | /* Reset the terminal style to the default, if needed. */ |
529 | ||
530 | extern void reset_terminal_style (struct ui_file *stream); | |
531 | ||
48faced0 | 532 | /* Display the host ADDR on STREAM formatted as ``0x%x''. */ |
b80c3053 PA |
533 | extern void gdb_print_host_address_1 (const void *addr, struct ui_file *stream); |
534 | ||
535 | /* Wrapper that avoids adding a pointless cast to all callers. */ | |
536 | #define gdb_print_host_address(ADDR, STREAM) \ | |
537 | gdb_print_host_address_1 ((const void *) ADDR, STREAM) | |
48faced0 | 538 | |
a738ea1d YQ |
539 | /* Return the address only having significant bits. */ |
540 | extern CORE_ADDR address_significant (gdbarch *gdbarch, CORE_ADDR addr); | |
541 | ||
48faced0 DE |
542 | /* Convert CORE_ADDR to string in platform-specific manner. |
543 | This is usually formatted similar to 0x%lx. */ | |
544 | extern const char *paddress (struct gdbarch *gdbarch, CORE_ADDR addr); | |
545 | ||
546 | /* Return a string representation in hexadecimal notation of ADDRESS, | |
547 | which is suitable for printing. */ | |
548 | ||
549 | extern const char *print_core_address (struct gdbarch *gdbarch, | |
550 | CORE_ADDR address); | |
551 | ||
552 | /* Callback hash_f and eq_f for htab_create_alloc or htab_create_alloc_ex. */ | |
553 | extern hashval_t core_addr_hash (const void *ap); | |
554 | extern int core_addr_eq (const void *ap, const void *bp); | |
555 | ||
48faced0 DE |
556 | extern CORE_ADDR string_to_core_addr (const char *my_string); |
557 | ||
48faced0 DE |
558 | extern void fprintf_symbol_filtered (struct ui_file *, const char *, |
559 | enum language, int); | |
560 | ||
598d3636 JK |
561 | extern void throw_perror_with_name (enum errors errcode, const char *string) |
562 | ATTRIBUTE_NORETURN; | |
48faced0 | 563 | |
7c647d61 JB |
564 | extern void perror_warning_with_name (const char *string); |
565 | ||
48faced0 DE |
566 | extern void print_sys_errmsg (const char *, int); |
567 | \f | |
568 | /* Warnings and error messages. */ | |
569 | ||
570 | extern void (*deprecated_error_begin_hook) (void); | |
571 | ||
48faced0 DE |
572 | /* Message to be printed before the warning message, when a warning occurs. */ |
573 | ||
69bbf465 | 574 | extern const char *warning_pre_print; |
48faced0 | 575 | |
d7e74731 | 576 | extern void error_stream (const string_file &) ATTRIBUTE_NORETURN; |
48faced0 | 577 | |
57fcfb1b GB |
578 | extern void demangler_vwarning (const char *file, int line, |
579 | const char *, va_list ap) | |
580 | ATTRIBUTE_PRINTF (3, 0); | |
581 | ||
582 | extern void demangler_warning (const char *file, int line, | |
583 | const char *, ...) ATTRIBUTE_PRINTF (3, 4); | |
584 | ||
48faced0 DE |
585 | \f |
586 | /* Misc. utilities. */ | |
587 | ||
588 | /* Allocation and deallocation functions for the libiberty hash table | |
589 | which use obstacks. */ | |
590 | void *hashtab_obstack_allocate (void *data, size_t size, size_t count); | |
591 | void dummy_obstack_deallocate (void *object, void *data); | |
592 | ||
593 | #ifdef HAVE_WAITPID | |
594 | extern pid_t wait_to_die_with_timeout (pid_t pid, int *status, int timeout); | |
595 | #endif | |
596 | ||
48faced0 DE |
597 | extern int myread (int, char *, int); |
598 | ||
e55c6530 JB |
599 | /* Integer exponentiation: Return V1**V2, where both arguments |
600 | are integers. | |
601 | ||
602 | Requires V1 != 0 if V2 < 0. | |
603 | Returns 1 for 0 ** 0. */ | |
604 | extern ULONGEST uinteger_pow (ULONGEST v1, LONGEST v2); | |
605 | ||
eae7090b GB |
606 | /* Resource limits used by getrlimit and setrlimit. */ |
607 | ||
608 | enum resource_limit_kind | |
609 | { | |
610 | LIMIT_CUR, | |
611 | LIMIT_MAX | |
612 | }; | |
613 | ||
614 | /* Check whether GDB will be able to dump core using the dump_core | |
615 | function. Returns zero if GDB cannot or should not dump core. | |
616 | If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected. | |
617 | If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */ | |
618 | ||
619 | extern int can_dump_core (enum resource_limit_kind limit_kind); | |
620 | ||
621 | /* Print a warning that we cannot dump core. */ | |
622 | ||
623 | extern void warn_cant_dump_core (const char *reason); | |
624 | ||
625 | /* Dump core trying to increase the core soft limit to hard limit | |
626 | first. */ | |
627 | ||
628 | extern void dump_core (void); | |
629 | ||
a99bc3d2 JB |
630 | /* Copy NBITS bits from SOURCE to DEST starting at the given bit |
631 | offsets. Use the bit order as specified by BITS_BIG_ENDIAN. | |
632 | Source and destination buffers must not overlap. */ | |
633 | ||
634 | extern void copy_bitwise (gdb_byte *dest, ULONGEST dest_offset, | |
635 | const gdb_byte *source, ULONGEST source_offset, | |
636 | ULONGEST nbits, int bits_big_endian); | |
637 | ||
4cbd39b2 | 638 | /* A fast hashing function. This can be used to hash data in a fast way |
1a6ff1a9 | 639 | when the length is known. If no fast hashing library is available, falls |
4cbd39b2 CB |
640 | back to iterative_hash from libiberty. START_VALUE can be set to |
641 | continue hashing from a previous value. */ | |
1a6ff1a9 CB |
642 | |
643 | static inline unsigned int | |
4cbd39b2 | 644 | fast_hash (const void *ptr, size_t len, unsigned int start_value = 0) |
1a6ff1a9 | 645 | { |
ccb1ba62 | 646 | #ifdef HAVE_LIBXXHASH |
4cbd39b2 | 647 | return XXH64 (ptr, len, start_value); |
ccb1ba62 | 648 | #else |
4cbd39b2 | 649 | return iterative_hash (ptr, len, start_value); |
ccb1ba62 | 650 | #endif |
1a6ff1a9 CB |
651 | } |
652 | ||
48faced0 | 653 | #endif /* UTILS_H */ |