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