1 /* General utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986-2023 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
22 #include "gdbsupport/gdb_wait.h"
23 #include "event-top.h"
24 #include "gdbthread.h"
27 #ifdef HAVE_SYS_RESOURCE_H
28 #include <sys/resource.h>
29 #endif /* HAVE_SYS_RESOURCE_H */
32 /* For tui_get_command_dimension and tui_disable. */
45 #include "gdb-demangle.h"
46 #include "expression.h"
50 #include "filenames.h"
52 #include "gdbsupport/gdb_obstack.h"
59 #include "inferior.h" /* for signed_pointer_to_address */
61 #include "gdb_curses.h"
63 #include "readline/readline.h"
68 #include "gdbsupport/gdb_regex.h"
69 #include "gdbsupport/job-control.h"
70 #include "gdbsupport/selftest.h"
71 #include "gdbsupport/gdb_optional.h"
72 #include "cp-support.h"
74 #include "gdbsupport/pathstuff.h"
75 #include "cli/cli-style.h"
76 #include "gdbsupport/scope-exit.h"
79 #include "gdbsupport/gdb-safe-ctype.h"
81 #include "gdbsupport/buildargv.h"
83 #include "run-on-main-thread.h"
85 void (*deprecated_error_begin_hook
) (void);
87 /* Prototypes for local functions */
89 static void set_screen_size (void);
90 static void set_width (void);
92 /* Time spent in prompt_for_continue in the currently executing command
93 waiting for user to respond.
94 Initialized in make_command_stats_cleanup.
95 Modified in prompt_for_continue and defaulted_query.
96 Used in report_command_stats. */
98 static std::chrono::steady_clock::duration prompt_for_continue_wait_time
;
100 /* A flag indicating whether to timestamp debugging messages. */
102 bool debug_timestamp
= false;
104 /* True means that strings with character values >0x7F should be printed
105 as octal escapes. False means just print the value (e.g. it's an
106 international character, and the terminal or window can cope.) */
108 bool sevenbit_strings
= false;
110 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
111 struct cmd_list_element
*c
, const char *value
)
113 gdb_printf (file
, _("Printing of 8-bit characters "
114 "in strings as \\nnn is %s.\n"),
118 /* String to be printed before warning messages, if any. */
120 const char *warning_pre_print
= "\nwarning: ";
122 bool pagination_enabled
= true;
124 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
125 struct cmd_list_element
*c
, const char *value
)
127 gdb_printf (file
, _("State of pagination is %s.\n"), value
);
133 /* Print a warning message. The first argument STRING is the warning
134 message, used as an fprintf format string, the second is the
135 va_list of arguments for that string. A warning is unfiltered (not
136 paginated) so that the user does not need to page through each
137 screen full of warnings when there are lots of them. */
140 vwarning (const char *string
, va_list args
)
142 if (deprecated_warning_hook
)
143 (*deprecated_warning_hook
) (string
, args
);
146 gdb::optional
<target_terminal::scoped_restore_terminal_state
> term_state
;
147 if (target_supports_terminal_ours ())
149 term_state
.emplace ();
150 target_terminal::ours_for_output ();
152 if (warning_pre_print
)
153 gdb_puts (warning_pre_print
, gdb_stderr
);
154 gdb_vprintf (gdb_stderr
, string
, args
);
155 gdb_printf (gdb_stderr
, "\n");
159 /* Print an error message and return to command level.
160 The first argument STRING is the error message, used as a fprintf string,
161 and the remaining args are passed as arguments to it. */
164 verror (const char *string
, va_list args
)
166 throw_verror (GENERIC_ERROR
, string
, args
);
169 /* Emit a message and abort. */
171 static void ATTRIBUTE_NORETURN
172 abort_with_message (const char *msg
)
174 if (current_ui
== NULL
)
177 gdb_puts (msg
, gdb_stderr
);
179 abort (); /* ARI: abort */
182 /* Dump core trying to increase the core soft limit to hard limit first. */
187 #ifdef HAVE_SETRLIMIT
188 struct rlimit rlim
= { (rlim_t
) RLIM_INFINITY
, (rlim_t
) RLIM_INFINITY
};
190 setrlimit (RLIMIT_CORE
, &rlim
);
191 #endif /* HAVE_SETRLIMIT */
193 /* Ensure that the SIGABRT we're about to raise will immediately cause
194 GDB to exit and dump core, we don't want to trigger GDB's printing of
195 a backtrace to the console here. */
196 signal (SIGABRT
, SIG_DFL
);
198 abort (); /* ARI: abort */
201 /* Check whether GDB will be able to dump core using the dump_core
202 function. Returns zero if GDB cannot or should not dump core.
203 If LIMIT_KIND is LIMIT_CUR the user's soft limit will be respected.
204 If LIMIT_KIND is LIMIT_MAX only the hard limit will be respected. */
207 can_dump_core (enum resource_limit_kind limit_kind
)
209 #ifdef HAVE_GETRLIMIT
212 /* Be quiet and assume we can dump if an error is returned. */
213 if (getrlimit (RLIMIT_CORE
, &rlim
) != 0)
219 if (rlim
.rlim_cur
== 0)
224 if (rlim
.rlim_max
== 0)
227 #endif /* HAVE_GETRLIMIT */
232 /* Print a warning that we cannot dump core. */
235 warn_cant_dump_core (const char *reason
)
237 gdb_printf (gdb_stderr
,
238 _("%s\nUnable to dump core, use `ulimit -c"
239 " unlimited' before executing GDB next time.\n"),
243 /* Check whether GDB will be able to dump core using the dump_core
244 function, and print a warning if we cannot. */
247 can_dump_core_warn (enum resource_limit_kind limit_kind
,
250 int core_dump_allowed
= can_dump_core (limit_kind
);
252 if (!core_dump_allowed
)
253 warn_cant_dump_core (reason
);
255 return core_dump_allowed
;
258 /* Allow the user to configure the debugger behavior with respect to
259 what to do when an internal problem is detected. */
261 const char internal_problem_ask
[] = "ask";
262 const char internal_problem_yes
[] = "yes";
263 const char internal_problem_no
[] = "no";
264 static const char *const internal_problem_modes
[] =
266 internal_problem_ask
,
267 internal_problem_yes
,
272 /* Data structure used to control how the internal_vproblem function
273 should behave. An instance of this structure is created for each
274 problem type that GDB supports. */
276 struct internal_problem
278 /* The name of this problem type. This must not contain white space as
279 this string is used to build command names. */
282 /* When this is true then a user command is created (based on NAME) that
283 allows the SHOULD_QUIT field to be modified, otherwise, SHOULD_QUIT
284 can't be changed from its default value by the user. */
285 bool user_settable_should_quit
;
287 /* Reference a value from internal_problem_modes to indicate if GDB
288 should quit when it hits a problem of this type. */
289 const char *should_quit
;
291 /* Like USER_SETTABLE_SHOULD_QUIT but for SHOULD_DUMP_CORE. */
292 bool user_settable_should_dump_core
;
294 /* Like SHOULD_QUIT, but whether GDB should dump core. */
295 const char *should_dump_core
;
297 /* Like USER_SETTABLE_SHOULD_QUIT but for SHOULD_PRINT_BACKTRACE. */
298 bool user_settable_should_print_backtrace
;
300 /* When this is true GDB will print a backtrace when a problem of this
301 type is encountered. */
302 bool should_print_backtrace
;
305 /* Return true if the readline callbacks have been initialized for UI.
306 This is always true once GDB is fully initialized, but during the early
307 startup phase this is initially false. */
310 readline_initialized (struct ui
*ui
)
312 return ui
->call_readline
!= nullptr;
315 /* Report a problem, internal to GDB, to the user. Once the problem
316 has been reported, and assuming GDB didn't quit, the caller can
317 either allow execution to resume or throw an error. */
319 static void ATTRIBUTE_PRINTF (4, 0)
320 internal_vproblem (struct internal_problem
*problem
,
321 const char *file
, int line
, const char *fmt
, va_list ap
)
328 /* Don't allow infinite error/warning recursion. */
330 static const char msg
[] = "Recursive internal problem.\n";
339 abort_with_message (msg
);
342 /* Newer GLIBC versions put the warn_unused_result attribute
343 on write, but this is one of those rare cases where
344 ignoring the return value is correct. Casting to (void)
345 does not fix this problem. This is the solution suggested
346 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
347 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
348 abort (); /* ARI: abort */
357 /* Create a string containing the full error/warning message. Need
358 to call query with this full string, as otherwize the reason
359 (error/warning) and question become separated. Format using a
360 style similar to a compiler error message. Include extra detail
361 so that the user knows that they are living on the edge. */
363 std::string msg
= string_vprintf (fmt
, ap
);
364 reason
= string_printf ("%s:%d: %s: %s\n"
365 "A problem internal to GDB has been detected,\n"
366 "further debugging may prove unreliable.",
367 file
, line
, problem
->name
, msg
.c_str ());
370 /* Fall back to abort_with_message if gdb_stderr is not set up. */
371 if (current_ui
== NULL
)
373 fputs (reason
.c_str (), stderr
);
374 abort_with_message ("\n");
377 /* Try to get the message out and at the start of a new line. */
378 gdb::optional
<target_terminal::scoped_restore_terminal_state
> term_state
;
379 if (target_supports_terminal_ours ())
381 term_state
.emplace ();
382 target_terminal::ours_for_output ();
384 if (filtered_printing_initialized ())
387 /* Emit the message unless query will emit it below. */
388 if (problem
->should_quit
!= internal_problem_ask
390 || !filtered_printing_initialized ()
391 || !readline_initialized (current_ui
)
392 || problem
->should_print_backtrace
)
393 gdb_printf (gdb_stderr
, "%s\n", reason
.c_str ());
395 if (problem
->should_print_backtrace
)
396 gdb_internal_backtrace ();
398 if (problem
->should_quit
== internal_problem_ask
)
400 /* Default (yes/batch case) is to quit GDB. When in batch mode
401 this lessens the likelihood of GDB going into an infinite
403 if (!confirm
|| !filtered_printing_initialized ()
404 || !readline_initialized (current_ui
))
407 quit_p
= query (_("%s\nQuit this debugging session? "),
410 else if (problem
->should_quit
== internal_problem_yes
)
412 else if (problem
->should_quit
== internal_problem_no
)
415 internal_error (_("bad switch"));
417 gdb_puts (_("\nThis is a bug, please report it."), gdb_stderr
);
418 if (REPORT_BUGS_TO
[0])
419 gdb_printf (gdb_stderr
, _(" For instructions, see:\n%ps."),
420 styled_string (file_name_style
.style (),
422 gdb_puts ("\n\n", gdb_stderr
);
424 if (problem
->should_dump_core
== internal_problem_ask
)
426 if (!can_dump_core_warn (LIMIT_MAX
, reason
.c_str ()))
428 else if (!filtered_printing_initialized ()
429 || !readline_initialized (current_ui
))
433 /* Default (yes/batch case) is to dump core. This leaves a GDB
434 `dropping' so that it is easier to see that something went
436 dump_core_p
= query (_("%s\nCreate a core file of GDB? "),
440 else if (problem
->should_dump_core
== internal_problem_yes
)
441 dump_core_p
= can_dump_core_warn (LIMIT_MAX
, reason
.c_str ());
442 else if (problem
->should_dump_core
== internal_problem_no
)
445 internal_error (_("bad switch"));
458 #ifdef HAVE_WORKING_FORK
468 static struct internal_problem internal_error_problem
= {
469 "internal-error", true, internal_problem_ask
, true, internal_problem_ask
,
470 true, GDB_PRINT_INTERNAL_BACKTRACE_INIT_ON
474 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
476 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
477 throw_quit (_("Command aborted."));
480 static struct internal_problem internal_warning_problem
= {
481 "internal-warning", true, internal_problem_ask
, true, internal_problem_ask
,
486 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
488 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
491 static struct internal_problem demangler_warning_problem
= {
492 "demangler-warning", true, internal_problem_ask
, false, internal_problem_no
,
497 demangler_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
499 internal_vproblem (&demangler_warning_problem
, file
, line
, fmt
, ap
);
503 demangler_warning (const char *file
, int line
, const char *string
, ...)
507 va_start (ap
, string
);
508 demangler_vwarning (file
, line
, string
, ap
);
512 /* When GDB reports an internal problem (error or warning) it gives
513 the user the opportunity to quit GDB and/or create a core file of
514 the current debug session. This function registers a few commands
515 that make it possible to specify that GDB should always or never
516 quit or create a core file, without asking. The commands look
519 maint set PROBLEM-NAME quit ask|yes|no
520 maint show PROBLEM-NAME quit
521 maint set PROBLEM-NAME corefile ask|yes|no
522 maint show PROBLEM-NAME corefile
524 Where PROBLEM-NAME is currently "internal-error" or
525 "internal-warning". */
528 add_internal_problem_command (struct internal_problem
*problem
)
530 struct cmd_list_element
**set_cmd_list
;
531 struct cmd_list_element
**show_cmd_list
;
533 set_cmd_list
= XNEW (struct cmd_list_element
*);
534 show_cmd_list
= XNEW (struct cmd_list_element
*);
535 *set_cmd_list
= NULL
;
536 *show_cmd_list
= NULL
;
538 /* The add_basic_prefix_cmd and add_show_prefix_cmd functions take
539 ownership of the string passed in, which is why we don't need to free
540 set_doc and show_doc in this function. */
542 = xstrprintf (_("Configure what GDB does when %s is detected."),
543 problem
->name
).release ();
545 = xstrprintf (_("Show what GDB does when %s is detected."),
546 problem
->name
).release ();
548 add_setshow_prefix_cmd (problem
->name
, class_maintenance
,
549 set_doc
, show_doc
, set_cmd_list
, show_cmd_list
,
550 &maintenance_set_cmdlist
, &maintenance_show_cmdlist
);
552 if (problem
->user_settable_should_quit
)
554 std::string set_quit_doc
555 = string_printf (_("Set whether GDB should quit when an %s is "
556 "detected."), problem
->name
);
557 std::string show_quit_doc
558 = string_printf (_("Show whether GDB will quit when an %s is "
559 "detected."), problem
->name
);
560 add_setshow_enum_cmd ("quit", class_maintenance
,
561 internal_problem_modes
,
562 &problem
->should_quit
,
563 set_quit_doc
.c_str (),
564 show_quit_doc
.c_str (),
572 if (problem
->user_settable_should_dump_core
)
574 std::string set_core_doc
575 = string_printf (_("Set whether GDB should create a core file of "
576 "GDB when %s is detected."), problem
->name
);
577 std::string show_core_doc
578 = string_printf (_("Show whether GDB will create a core file of "
579 "GDB when %s is detected."), problem
->name
);
580 add_setshow_enum_cmd ("corefile", class_maintenance
,
581 internal_problem_modes
,
582 &problem
->should_dump_core
,
583 set_core_doc
.c_str (),
584 show_core_doc
.c_str (),
592 if (problem
->user_settable_should_print_backtrace
)
594 std::string set_bt_doc
595 = string_printf (_("Set whether GDB should print a backtrace of "
596 "GDB when %s is detected."), problem
->name
);
597 std::string show_bt_doc
598 = string_printf (_("Show whether GDB will print a backtrace of "
599 "GDB when %s is detected."), problem
->name
);
600 add_setshow_boolean_cmd ("backtrace", class_maintenance
,
601 &problem
->should_print_backtrace
,
603 show_bt_doc
.c_str (),
605 gdb_internal_backtrace_set_cmd
,
612 /* Same as perror_with_name except that it prints a warning instead
613 of throwing an error. */
616 perror_warning_with_name (const char *string
)
618 std::string combined
= perror_string (string
);
619 warning (_("%s"), combined
.c_str ());
622 /* Print the system error message for ERRCODE, and also mention STRING
623 as the file name for which the error was encountered. */
626 print_sys_errmsg (const char *string
, int errcode
)
628 const char *err
= safe_strerror (errcode
);
629 gdb_printf (gdb_stderr
, "%s: %s.\n", string
, err
);
632 /* Control C eventually causes this to be called, at a convenient time. */
637 if (sync_quit_force_run
)
639 sync_quit_force_run
= false;
640 throw_forced_quit ("SIGTERM");
644 /* No steenking SIGINT will ever be coming our way when the
645 program is resumed. Don't lie. */
649 /* If there is no terminal switching for this target, then we can't
650 possibly get screwed by the lack of job control. */
651 || !target_supports_terminal_ours ())
654 throw_quit ("Quit (expect signal SIGINT when the program is resumed)");
663 if (!is_main_thread ())
666 if (sync_quit_force_run
)
673 /* Called when a memory allocation fails, with the number of bytes of
674 memory requested in SIZE. */
677 malloc_failure (long size
)
681 internal_error (_("virtual memory exhausted: can't allocate %ld bytes."),
686 internal_error (_("virtual memory exhausted."));
690 /* See common/errors.h. */
695 gdb_stdout
->flush ();
696 gdb_stderr
->flush ();
699 /* My replacement for the read system call.
700 Used like `read' but keeps going if `read' returns too soon. */
703 myread (int desc
, char *addr
, int len
)
710 val
= read (desc
, addr
, len
);
723 /* An RAII class that sets up to handle input and then tears down
724 during destruction. */
726 class scoped_input_handler
730 scoped_input_handler ()
731 : m_quit_handler (&quit_handler
, default_quit_handler
),
734 target_terminal::ours ();
735 current_ui
->register_file_handler ();
736 if (current_ui
->prompt_state
== PROMPT_BLOCKED
)
740 ~scoped_input_handler ()
743 m_ui
->unregister_file_handler ();
746 DISABLE_COPY_AND_ASSIGN (scoped_input_handler
);
750 /* Save and restore the terminal state. */
751 target_terminal::scoped_restore_terminal_state m_term_state
;
753 /* Save and restore the quit handler. */
754 scoped_restore_tmpl
<quit_handler_ftype
*> m_quit_handler
;
756 /* The saved UI, if non-NULL. */
762 /* This function supports the query, nquery, and yquery functions.
763 Ask user a y-or-n question and return 0 if answer is no, 1 if
764 answer is yes, or default the answer to the specified default
765 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
766 default answer, or '\0' for no default.
767 CTLSTR is the control string and should end in "? ". It should
768 not say how to answer, because we do that.
769 ARGS are the arguments passed along with the CTLSTR argument to
772 static int ATTRIBUTE_PRINTF (1, 0)
773 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
777 char def_answer
, not_def_answer
;
778 const char *y_string
, *n_string
;
780 /* Set up according to which answer is the default. */
785 not_def_answer
= 'N';
789 else if (defchar
== 'y')
793 not_def_answer
= 'N';
801 not_def_answer
= 'Y';
806 /* Automatically answer the default value if the user did not want
807 prompts or the command was issued with the server prefix. */
808 if (!confirm
|| server_command
)
811 /* If input isn't coming from the user directly, just say what
812 question we're asking, and then answer the default automatically. This
813 way, important error messages don't get lost when talking to GDB
815 if (current_ui
->instream
!= current_ui
->stdin_stream
816 || !current_ui
->input_interactive_p ()
817 /* Restrict queries to the main UI. */
818 || current_ui
!= main_ui
)
820 target_terminal::scoped_restore_terminal_state term_state
;
821 target_terminal::ours_for_output ();
822 gdb_stdout
->wrap_here (0);
823 gdb_vprintf (gdb_stdout
, ctlstr
, args
);
825 gdb_printf (_("(%s or %s) [answered %c; "
826 "input not from terminal]\n"),
827 y_string
, n_string
, def_answer
);
832 if (deprecated_query_hook
)
834 target_terminal::scoped_restore_terminal_state term_state
;
835 return deprecated_query_hook (ctlstr
, args
);
838 /* Format the question outside of the loop, to avoid reusing args. */
839 std::string question
= string_vprintf (ctlstr
, args
);
841 = string_printf (_("%s%s(%s or %s) %s"),
842 annotation_level
> 1 ? "\n\032\032pre-query\n" : "",
843 question
.c_str (), y_string
, n_string
,
844 annotation_level
> 1 ? "\n\032\032query\n" : "");
846 /* Used to add duration we waited for user to respond to
847 prompt_for_continue_wait_time. */
848 using namespace std::chrono
;
849 steady_clock::time_point prompt_started
= steady_clock::now ();
851 scoped_input_handler prepare_input
;
855 char *response
, answer
;
857 gdb_flush (gdb_stdout
);
858 response
= gdb_readline_wrapper (prompt
.c_str ());
860 if (response
== NULL
) /* C-d */
862 gdb_printf ("EOF [assumed %c]\n", def_answer
);
867 answer
= response
[0];
872 /* Check answer. For the non-default, the user must specify
873 the non-default explicitly. */
874 if (answer
== not_def_answer
)
879 /* Otherwise, if a default was specified, the user may either
880 specify the required input or have it default by entering
882 if (answer
== def_answer
883 || (defchar
!= '\0' && answer
== '\0'))
888 /* Invalid entries are not defaulted and require another selection. */
889 gdb_printf (_("Please answer %s or %s.\n"),
893 /* Add time spend in this routine to prompt_for_continue_wait_time. */
894 prompt_for_continue_wait_time
+= steady_clock::now () - prompt_started
;
896 if (annotation_level
> 1)
897 gdb_printf (("\n\032\032post-query\n"));
902 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
903 answer is yes, or 0 if answer is defaulted.
904 Takes three args which are given to printf to print the question.
905 The first, a control string, should end in "? ".
906 It should not say how to answer, because we do that. */
909 nquery (const char *ctlstr
, ...)
914 va_start (args
, ctlstr
);
915 ret
= defaulted_query (ctlstr
, 'n', args
);
920 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
921 answer is yes, or 1 if answer is defaulted.
922 Takes three args which are given to printf to print the question.
923 The first, a control string, should end in "? ".
924 It should not say how to answer, because we do that. */
927 yquery (const char *ctlstr
, ...)
932 va_start (args
, ctlstr
);
933 ret
= defaulted_query (ctlstr
, 'y', args
);
938 /* Ask user a y-or-n question and return 1 iff answer is yes.
939 Takes three args which are given to printf to print the question.
940 The first, a control string, should end in "? ".
941 It should not say how to answer, because we do that. */
944 query (const char *ctlstr
, ...)
949 va_start (args
, ctlstr
);
950 ret
= defaulted_query (ctlstr
, '\0', args
);
955 /* A helper for parse_escape that converts a host character to a
956 target character. C is the host character. If conversion is
957 possible, then the target character is stored in *TARGET_C and the
958 function returns 1. Otherwise, the function returns 0. */
961 host_char_to_target (struct gdbarch
*gdbarch
, int c
, int *target_c
)
966 auto_obstack host_data
;
968 convert_between_encodings (target_charset (gdbarch
), host_charset (),
969 (gdb_byte
*) &the_char
, 1, 1,
970 &host_data
, translit_none
);
972 if (obstack_object_size (&host_data
) == 1)
975 *target_c
= *(char *) obstack_base (&host_data
);
981 /* Parse a C escape sequence. STRING_PTR points to a variable
982 containing a pointer to the string to parse. That pointer
983 should point to the character after the \. That pointer
984 is updated past the characters we use. The value of the
985 escape sequence is returned.
987 A negative value means the sequence \ newline was seen,
988 which is supposed to be equivalent to nothing at all.
990 If \ is followed by a null character, we return a negative
991 value and leave the string pointer pointing at the null character.
993 If \ is followed by 000, we return 0 and leave the string pointer
994 after the zeros. A value of 0 does not mean end of string. */
997 parse_escape (struct gdbarch
*gdbarch
, const char **string_ptr
)
999 int target_char
= -2; /* Initialize to avoid GCC warnings. */
1000 int c
= *(*string_ptr
)++;
1019 int i
= fromhex (c
);
1024 if (ISDIGIT (c
) && c
!= '8' && c
!= '9')
1064 if (!host_char_to_target (gdbarch
, c
, &target_char
))
1065 error (_("The escape sequence `\\%c' is equivalent to plain `%c',"
1066 " which has no equivalent\nin the `%s' character set."),
1067 c
, c
, target_charset (gdbarch
));
1072 /* Number of lines per page or UINT_MAX if paging is disabled. */
1073 static unsigned int lines_per_page
;
1075 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1076 struct cmd_list_element
*c
, const char *value
)
1079 _("Number of lines gdb thinks are in a page is %s.\n"),
1083 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1084 static unsigned int chars_per_line
;
1086 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1087 struct cmd_list_element
*c
, const char *value
)
1090 _("Number of characters gdb thinks "
1091 "are in a line is %s.\n"),
1095 /* Current count of lines printed on this page, chars on this line. */
1096 static unsigned int lines_printed
, chars_printed
;
1098 /* True if pagination is disabled for just one command. */
1100 static bool pagination_disabled_for_command
;
1102 /* Buffer and start column of buffered text, for doing smarter word-
1103 wrapping. When someone calls wrap_here(), we start buffering output
1104 that comes through gdb_puts(). If we see a newline, we just
1105 spit it out and forget about the wrap_here(). If we see another
1106 wrap_here(), we spit it out and remember the newer one. If we see
1107 the end of the line, we spit out a newline, the indent, and then
1108 the buffered output. */
1110 static bool filter_initialized
= false;
1114 /* See readline's rlprivate.h. */
1116 EXTERN_C
int _rl_term_autowrap
;
1120 int readline_hidden_cols
= 0;
1122 /* Initialize the number of lines per page and chars per line. */
1125 init_page_info (void)
1129 lines_per_page
= UINT_MAX
;
1130 chars_per_line
= UINT_MAX
;
1134 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1139 #if defined(__GO32__)
1140 rows
= ScreenRows ();
1141 cols
= ScreenCols ();
1142 lines_per_page
= rows
;
1143 chars_per_line
= cols
;
1145 /* Make sure Readline has initialized its terminal settings. */
1146 rl_reset_terminal (NULL
);
1148 /* Get the screen size from Readline. */
1149 rl_get_screen_size (&rows
, &cols
);
1152 - ignores the COLUMNS variable when detecting screen width
1153 (because rl_prefer_env_winsize defaults to 0)
1154 - puts the detected screen width in the COLUMNS variable
1155 (because rl_change_environment defaults to 1)
1156 - may report one less than the detected screen width in
1157 rl_get_screen_size (when _rl_term_autowrap == 0).
1158 We could set readline_hidden_cols by comparing COLUMNS to cols as
1159 returned by rl_get_screen_size, but instead simply use
1160 _rl_term_autowrap. */
1161 readline_hidden_cols
= _rl_term_autowrap
? 0 : 1;
1163 lines_per_page
= rows
;
1164 chars_per_line
= cols
+ readline_hidden_cols
;
1166 /* Readline should have fetched the termcap entry for us.
1167 Only try to use tgetnum function if rl_get_screen_size
1168 did not return a useful value. */
1169 if (((rows
<= 0) && (tgetnum ((char *) "li") < 0))
1170 /* Also disable paging if inside Emacs. $EMACS was used
1171 before Emacs v25.1, $INSIDE_EMACS is used since then. */
1172 || getenv ("EMACS") || getenv ("INSIDE_EMACS"))
1174 /* The number of lines per page is not mentioned in the terminal
1175 description or EMACS environment variable is set. This probably
1176 means that paging is not useful, so disable paging. */
1177 lines_per_page
= UINT_MAX
;
1180 /* If the output is not a terminal, don't paginate it. */
1181 if (!gdb_stdout
->isatty ())
1182 lines_per_page
= UINT_MAX
;
1186 /* We handle SIGWINCH ourselves. */
1187 rl_catch_sigwinch
= 0;
1193 /* Return nonzero if filtered printing is initialized. */
1195 filtered_printing_initialized (void)
1197 return filter_initialized
;
1200 set_batch_flag_and_restore_page_info::set_batch_flag_and_restore_page_info ()
1201 : m_save_lines_per_page (lines_per_page
),
1202 m_save_chars_per_line (chars_per_line
),
1203 m_save_batch_flag (batch_flag
)
1209 set_batch_flag_and_restore_page_info::~set_batch_flag_and_restore_page_info ()
1211 batch_flag
= m_save_batch_flag
;
1212 chars_per_line
= m_save_chars_per_line
;
1213 lines_per_page
= m_save_lines_per_page
;
1219 /* An approximation of SQRT(INT_MAX) that is:
1220 - cheap to calculate,
1221 - guaranteed to be smaller than SQRT(INT_MAX), such that
1222 sqrt_int_max * sqrt_int_max doesn't overflow, and
1223 - "close enough" to SQRT(INT_MAX), for instance for INT_MAX == 2147483647,
1224 SQRT(INT_MAX) is ~46341 and sqrt_int_max == 32767. */
1226 static const int sqrt_int_max
= INT_MAX
>> (sizeof (int) * 8 / 2);
1228 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1231 set_screen_size (void)
1233 int rows
= lines_per_page
;
1234 int cols
= chars_per_line
;
1236 /* If we get 0 or negative ROWS or COLS, treat as "infinite" size.
1237 A negative number can be seen here with the "set width/height"
1238 commands and either:
1240 - the user specified "unlimited", which maps to UINT_MAX, or
1241 - the user specified some number between INT_MAX and UINT_MAX.
1243 Cap "infinity" to approximately sqrt(INT_MAX) so that we don't
1244 overflow in rl_set_screen_size, which multiplies rows and columns
1245 to compute the number of characters on the screen. */
1247 if (rows
<= 0 || rows
> sqrt_int_max
)
1249 rows
= sqrt_int_max
;
1250 lines_per_page
= UINT_MAX
;
1253 if (cols
<= 0 || cols
> sqrt_int_max
)
1255 cols
= sqrt_int_max
;
1256 chars_per_line
= UINT_MAX
;
1259 /* Update Readline's idea of the terminal size. */
1260 rl_set_screen_size (rows
, cols
);
1263 /* Reinitialize WRAP_BUFFER. */
1268 if (chars_per_line
== 0)
1271 filter_initialized
= true;
1275 set_width_command (const char *args
, int from_tty
, struct cmd_list_element
*c
)
1282 set_height_command (const char *args
, int from_tty
, struct cmd_list_element
*c
)
1290 set_screen_width_and_height (int width
, int height
)
1292 lines_per_page
= height
;
1293 chars_per_line
= width
;
1299 /* Implement "maint info screen". */
1302 maintenance_info_screen (const char *args
, int from_tty
)
1305 rl_get_screen_size (&rows
, &cols
);
1307 gdb_printf (gdb_stdout
,
1308 _("Number of characters gdb thinks "
1309 "are in a line is %u%s.\n"),
1311 chars_per_line
== UINT_MAX
? " (unlimited)" : "");
1313 gdb_printf (gdb_stdout
,
1314 _("Number of characters readline reports "
1315 "are in a line is %d%s.\n"),
1317 (cols
== sqrt_int_max
1319 : (cols
== sqrt_int_max
- 1
1320 ? " (unlimited - 1)"
1323 #ifdef HAVE_LIBCURSES
1324 gdb_printf (gdb_stdout
,
1325 _("Number of characters curses thinks "
1326 "are in a line is %d.\n"),
1330 gdb_printf (gdb_stdout
,
1331 _("Number of characters environment thinks "
1332 "are in a line is %s (COLUMNS).\n"),
1333 getenv ("COLUMNS"));
1335 gdb_printf (gdb_stdout
,
1336 _("Number of lines gdb thinks are in a page is %u%s.\n"),
1338 lines_per_page
== UINT_MAX
? " (unlimited)" : "");
1340 gdb_printf (gdb_stdout
,
1341 _("Number of lines readline reports "
1342 "are in a page is %d%s.\n"),
1344 rows
== sqrt_int_max
? " (unlimited)" : "");
1346 #ifdef HAVE_LIBCURSES
1347 gdb_printf (gdb_stdout
,
1348 _("Number of lines curses thinks "
1349 "are in a page is %d.\n"),
1353 gdb_printf (gdb_stdout
,
1354 _("Number of lines environment thinks "
1355 "are in a page is %s (LINES).\n"),
1360 pager_file::emit_style_escape (const ui_file_style
&style
)
1362 if (can_emit_style_escape () && style
!= m_applied_style
)
1364 m_applied_style
= style
;
1366 m_stream
->emit_style_escape (style
);
1368 m_wrap_buffer
.append (style
.to_ansi ());
1375 pager_file::reset_style ()
1377 if (can_emit_style_escape ())
1379 m_applied_style
= ui_file_style ();
1380 m_wrap_buffer
.append (m_applied_style
.to_ansi ());
1384 /* Wait, so the user can read what's on the screen. Prompt the user
1385 to continue by pressing RETURN. 'q' is also provided because
1386 telling users what to do in the prompt is more user-friendly than
1387 expecting them to think of Ctrl-C/SIGINT. */
1390 pager_file::prompt_for_continue ()
1392 char cont_prompt
[120];
1393 /* Used to add duration we waited for user to respond to
1394 prompt_for_continue_wait_time. */
1395 using namespace std::chrono
;
1396 steady_clock::time_point prompt_started
= steady_clock::now ();
1397 bool disable_pagination
= pagination_disabled_for_command
;
1399 scoped_restore save_paging
= make_scoped_restore (&m_paging
, true);
1401 /* Clear the current styling. */
1402 m_stream
->emit_style_escape (ui_file_style ());
1404 if (annotation_level
> 1)
1405 m_stream
->puts (("\n\032\032pre-prompt-for-continue\n"));
1407 strcpy (cont_prompt
,
1408 "--Type <RET> for more, q to quit, "
1409 "c to continue without paging--");
1410 if (annotation_level
> 1)
1411 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1413 /* We must do this *before* we call gdb_readline_wrapper, else it
1414 will eventually call us -- thinking that we're trying to print
1415 beyond the end of the screen. */
1416 reinitialize_more_filter ();
1418 scoped_input_handler prepare_input
;
1420 /* Call gdb_readline_wrapper, not readline, in order to keep an
1421 event loop running. */
1422 gdb::unique_xmalloc_ptr
<char> ignore (gdb_readline_wrapper (cont_prompt
));
1424 /* Add time spend in this routine to prompt_for_continue_wait_time. */
1425 prompt_for_continue_wait_time
+= steady_clock::now () - prompt_started
;
1427 if (annotation_level
> 1)
1428 m_stream
->puts (("\n\032\032post-prompt-for-continue\n"));
1432 char *p
= ignore
.get ();
1434 while (*p
== ' ' || *p
== '\t')
1437 /* Do not call quit here; there is no possibility of SIGINT. */
1438 throw_quit ("Quit");
1440 disable_pagination
= true;
1443 /* Now we have to do this again, so that GDB will know that it doesn't
1444 need to save the ---Type <return>--- line at the top of the screen. */
1445 reinitialize_more_filter ();
1446 pagination_disabled_for_command
= disable_pagination
;
1448 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1451 /* Initialize timer to keep track of how long we waited for the user. */
1454 reset_prompt_for_continue_wait_time (void)
1456 using namespace std::chrono
;
1458 prompt_for_continue_wait_time
= steady_clock::duration::zero ();
1461 /* Fetch the cumulative time spent in prompt_for_continue. */
1463 std::chrono::steady_clock::duration
1464 get_prompt_for_continue_wait_time ()
1466 return prompt_for_continue_wait_time
;
1469 /* Reinitialize filter; ie. tell it to reset to original values. */
1472 reinitialize_more_filter (void)
1476 pagination_disabled_for_command
= false;
1480 pager_file::flush_wrap_buffer ()
1482 if (!m_paging
&& !m_wrap_buffer
.empty ())
1484 m_stream
->puts (m_wrap_buffer
.c_str ());
1485 m_wrap_buffer
.clear ();
1490 pager_file::flush ()
1492 flush_wrap_buffer ();
1499 gdb_flush (struct ui_file
*stream
)
1507 get_chars_per_line ()
1509 return chars_per_line
;
1512 /* See ui-file.h. */
1515 pager_file::wrap_here (int indent
)
1517 /* This should have been allocated, but be paranoid anyway. */
1518 gdb_assert (filter_initialized
);
1520 flush_wrap_buffer ();
1521 if (chars_per_line
== UINT_MAX
) /* No line overflow checking. */
1525 else if (chars_printed
>= chars_per_line
)
1529 this->puts (n_spaces (indent
));
1534 m_wrap_column
= chars_printed
;
1535 m_wrap_indent
= indent
;
1536 m_wrap_style
= m_applied_style
;
1540 /* Print input string to gdb_stdout arranging strings in columns of n
1541 chars. String can be right or left justified in the column. Never
1542 prints trailing spaces. String should never be longer than width.
1543 FIXME: this could be useful for the EXAMINE command, which
1544 currently doesn't tabulate very well. */
1547 puts_tabular (char *string
, int width
, int right
)
1553 gdb_assert (chars_per_line
> 0);
1554 if (chars_per_line
== UINT_MAX
)
1561 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1564 if (width
>= chars_per_line
)
1565 width
= chars_per_line
- 1;
1567 stringlen
= strlen (string
);
1569 if (chars_printed
> 0)
1570 spaces
= width
- (chars_printed
- 1) % width
- 1;
1572 spaces
+= width
- stringlen
;
1574 spacebuf
= (char *) alloca (spaces
+ 1);
1575 spacebuf
[spaces
] = '\0';
1577 spacebuf
[spaces
] = ' ';
1579 gdb_puts (spacebuf
);
1584 /* Ensure that whatever gets printed next, using the filtered output
1585 commands, starts at the beginning of the line. I.e. if there is
1586 any pending output for the current line, flush it and start a new
1587 line. Otherwise do nothing. */
1592 if (chars_printed
> 0)
1599 pager_file::puts (const char *linebuffer
)
1601 const char *lineptr
;
1603 if (linebuffer
== 0)
1606 /* Don't do any filtering or wrapping if both are disabled. */
1608 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
)
1609 || top_level_interpreter () == NULL
1610 || top_level_interpreter ()->interp_ui_out ()->is_mi_like_p ())
1612 flush_wrap_buffer ();
1613 m_stream
->puts (linebuffer
);
1618 = make_scope_exit ([&] ()
1620 m_wrap_buffer
.clear ();
1625 /* If the user does "set height 1" then the pager will exhibit weird
1626 behavior. This is pathological, though, so don't allow it. */
1627 const unsigned int lines_allowed
= (lines_per_page
> 1
1628 ? lines_per_page
- 1
1631 /* Go through and output each character. Show line extension
1632 when this is necessary; prompt user for new page when this is
1635 lineptr
= linebuffer
;
1638 /* Possible new page. Note that PAGINATION_DISABLED_FOR_COMMAND
1639 might be set during this loop, so we must continue to check
1641 if (pagination_enabled
1642 && !pagination_disabled_for_command
1643 && lines_printed
>= lines_allowed
)
1644 prompt_for_continue ();
1646 while (*lineptr
&& *lineptr
!= '\n')
1650 /* Print a single line. */
1651 if (*lineptr
== '\t')
1653 m_wrap_buffer
.push_back ('\t');
1654 /* Shifting right by 3 produces the number of tab stops
1655 we have already passed, and then adding one and
1656 shifting left 3 advances to the next tab stop. */
1657 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1660 else if (*lineptr
== '\033'
1661 && skip_ansi_escape (lineptr
, &skip_bytes
))
1663 m_wrap_buffer
.append (lineptr
, skip_bytes
);
1664 /* Note that we don't consider this a character, so we
1665 don't increment chars_printed here. */
1666 lineptr
+= skip_bytes
;
1668 else if (*lineptr
== '\r')
1670 m_wrap_buffer
.push_back (*lineptr
);
1676 m_wrap_buffer
.push_back (*lineptr
);
1681 if (chars_printed
>= chars_per_line
)
1683 unsigned int save_chars
= chars_printed
;
1685 /* If we change the style, below, we'll want to reset it
1686 before continuing to print. If there is no wrap
1687 column, then we'll only reset the style if the pager
1688 prompt is given; and to avoid emitting style
1689 sequences in the middle of a run of text, we track
1691 ui_file_style save_style
= m_applied_style
;
1692 bool did_paginate
= false;
1698 /* We are about to insert a newline at an historic
1699 location in the WRAP_BUFFER. Before we do we want to
1700 restore the default style. To know if we actually
1701 need to insert an escape sequence we must restore the
1702 current applied style to how it was at the WRAP_COLUMN
1704 m_applied_style
= m_wrap_style
;
1705 m_stream
->emit_style_escape (ui_file_style ());
1706 /* If we aren't actually wrapping, don't output
1707 newline -- if chars_per_line is right, we
1708 probably just overflowed anyway; if it's wrong,
1709 let us keep going. */
1710 m_stream
->puts ("\n");
1713 this->flush_wrap_buffer ();
1715 /* Possible new page. Note that
1716 PAGINATION_DISABLED_FOR_COMMAND might be set during
1717 this loop, so we must continue to check it here. */
1718 if (pagination_enabled
1719 && !pagination_disabled_for_command
1720 && lines_printed
>= lines_allowed
)
1722 prompt_for_continue ();
1723 did_paginate
= true;
1726 /* Now output indentation and wrapped string. */
1729 m_stream
->puts (n_spaces (m_wrap_indent
));
1731 /* Having finished inserting the wrapping we should
1732 restore the style as it was at the WRAP_COLUMN. */
1733 m_stream
->emit_style_escape (m_wrap_style
);
1735 /* The WRAP_BUFFER will still contain content, and that
1736 content might set some alternative style. Restore
1737 APPLIED_STYLE as it was before we started wrapping,
1738 this reflects the current style for the last character
1740 m_applied_style
= save_style
;
1742 /* Note that this can set chars_printed > chars_per_line
1743 if we are printing a long string. */
1744 chars_printed
= m_wrap_indent
+ (save_chars
- m_wrap_column
);
1745 m_wrap_column
= 0; /* And disable fancy wrap */
1747 else if (did_paginate
)
1748 m_stream
->emit_style_escape (save_style
);
1752 if (*lineptr
== '\n')
1755 wrap_here (0); /* Spit out chars, cancel further wraps. */
1757 m_stream
->puts ("\n");
1762 buffer_clearer
.release ();
1766 pager_file::write (const char *buf
, long length_buf
)
1768 /* We have to make a string here because the pager uses
1769 skip_ansi_escape, which requires NUL-termination. */
1770 std::string
str (buf
, length_buf
);
1771 this->puts (str
.c_str ());
1776 /* Test that disabling the pager does not also disable word
1782 string_file
*strfile
= new string_file ();
1783 pager_file
pager (strfile
);
1785 /* Make sure the pager is disabled. */
1786 scoped_restore save_enabled
1787 = make_scoped_restore (&pagination_enabled
, false);
1788 scoped_restore save_disabled
1789 = make_scoped_restore (&pagination_disabled_for_command
, false);
1790 scoped_restore save_batch
1791 = make_scoped_restore (&batch_flag
, false);
1792 scoped_restore save_lines
1793 = make_scoped_restore (&lines_per_page
, 50);
1794 /* Make it easy to word wrap. */
1795 scoped_restore save_chars
1796 = make_scoped_restore (&chars_per_line
, 15);
1797 scoped_restore save_printed
1798 = make_scoped_restore (&chars_printed
, 0);
1800 pager
.puts ("aaaaaaaaaaaa");
1801 pager
.wrap_here (2);
1802 pager
.puts ("bbbbbbbbbbbb\n");
1804 SELF_CHECK (strfile
->string () == "aaaaaaaaaaaa\n bbbbbbbbbbbb\n");
1807 #endif /* GDB_SELF_TEST */
1810 gdb_puts (const char *linebuffer
, struct ui_file
*stream
)
1812 stream
->puts (linebuffer
);
1818 fputs_styled (const char *linebuffer
, const ui_file_style
&style
,
1819 struct ui_file
*stream
)
1821 stream
->emit_style_escape (style
);
1822 gdb_puts (linebuffer
, stream
);
1823 stream
->emit_style_escape (ui_file_style ());
1829 fputs_highlighted (const char *str
, const compiled_regex
&highlight
,
1830 struct ui_file
*stream
)
1834 while (*str
&& highlight
.exec (str
, 1, &pmatch
, 0) == 0)
1836 size_t n_highlight
= pmatch
.rm_eo
- pmatch
.rm_so
;
1838 /* Output the part before pmatch with current style. */
1839 while (pmatch
.rm_so
> 0)
1841 gdb_putc (*str
, stream
);
1846 /* Output pmatch with the highlight style. */
1847 stream
->emit_style_escape (highlight_style
.style ());
1848 while (n_highlight
> 0)
1850 gdb_putc (*str
, stream
);
1854 stream
->emit_style_escape (ui_file_style ());
1857 /* Output the trailing part of STR not matching HIGHLIGHT. */
1859 gdb_puts (str
, stream
);
1865 return gdb_stdout
->putc (c
);
1869 gdb_putc (int c
, struct ui_file
*stream
)
1871 return stream
->putc (c
);
1875 gdb_vprintf (struct ui_file
*stream
, const char *format
, va_list args
)
1877 stream
->vprintf (format
, args
);
1881 gdb_vprintf (const char *format
, va_list args
)
1883 gdb_stdout
->vprintf (format
, args
);
1887 gdb_printf (struct ui_file
*stream
, const char *format
, ...)
1891 va_start (args
, format
);
1892 gdb_vprintf (stream
, format
, args
);
1899 fprintf_styled (struct ui_file
*stream
, const ui_file_style
&style
,
1900 const char *format
, ...)
1904 stream
->emit_style_escape (style
);
1905 va_start (args
, format
);
1906 gdb_vprintf (stream
, format
, args
);
1908 stream
->emit_style_escape (ui_file_style ());
1912 gdb_printf (const char *format
, ...)
1916 va_start (args
, format
);
1917 gdb_vprintf (gdb_stdout
, format
, args
);
1923 printf_unfiltered (const char *format
, ...)
1927 va_start (args
, format
);
1928 string_file
file (gdb_stdout
->can_emit_style_escape ());
1929 file
.vprintf (format
, args
);
1930 gdb_stdout
->puts_unfiltered (file
.string ().c_str ());
1934 /* Easy -- but watch out!
1936 This routine is *not* a replacement for puts()! puts() appends a newline.
1937 This one doesn't, and had better not! */
1940 gdb_puts (const char *string
)
1942 gdb_stdout
->puts (string
);
1945 /* Return a pointer to N spaces and a null. The pointer is good
1946 until the next call to here. */
1951 static char *spaces
= 0;
1952 static int max_spaces
= -1;
1957 spaces
= (char *) xmalloc (n
+ 1);
1958 for (t
= spaces
+ n
; t
!= spaces
;)
1964 return spaces
+ max_spaces
- n
;
1967 /* Print N spaces. */
1969 print_spaces (int n
, struct ui_file
*stream
)
1971 gdb_puts (n_spaces (n
), stream
);
1974 /* C++/ObjC demangler stuff. */
1976 /* fprintf_symbol attempts to demangle NAME, a symbol in language
1977 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
1978 If the name is not mangled, or the language for the name is unknown, or
1979 demangling is off, the name is printed in its "raw" form. */
1982 fprintf_symbol (struct ui_file
*stream
, const char *name
,
1983 enum language lang
, int arg_mode
)
1987 /* If user wants to see raw output, no problem. */
1990 gdb_puts (name
, stream
);
1994 gdb::unique_xmalloc_ptr
<char> demangled
1995 = language_def (lang
)->demangle_symbol (name
, arg_mode
);
1996 gdb_puts (demangled
? demangled
.get () : name
, stream
);
2001 /* True if CH is a character that can be part of a symbol name. I.e.,
2002 either a number, a letter, or a '_'. */
2005 valid_identifier_name_char (int ch
)
2007 return (ISALNUM (ch
) || ch
== '_');
2010 /* Skip to end of token, or to END, whatever comes first. Input is
2011 assumed to be a C++ operator name. */
2014 cp_skip_operator_token (const char *token
, const char *end
)
2016 const char *p
= token
;
2017 while (p
!= end
&& !ISSPACE (*p
) && *p
!= '(')
2019 if (valid_identifier_name_char (*p
))
2021 while (p
!= end
&& valid_identifier_name_char (*p
))
2027 /* Note, ordered such that among ops that share a prefix,
2028 longer comes first. This is so that the loop below can
2029 bail on first match. */
2030 static const char *ops
[] =
2036 "-=", "--", "->", "-",
2045 "<<=", "<=", "<<", "<",
2046 ">>=", ">=", ">>", ">",
2050 for (const char *op
: ops
)
2052 size_t oplen
= strlen (op
);
2053 size_t lencmp
= std::min
<size_t> (oplen
, end
- p
);
2055 if (strncmp (p
, op
, lencmp
) == 0)
2058 /* Some unidentified character. Return it. */
2066 /* Advance STRING1/STRING2 past whitespace. */
2069 skip_ws (const char *&string1
, const char *&string2
, const char *end_str2
)
2071 while (ISSPACE (*string1
))
2073 while (string2
< end_str2
&& ISSPACE (*string2
))
2077 /* True if STRING points at the start of a C++ operator name. START
2078 is the start of the string that STRING points to, hence when
2079 reading backwards, we must not read any character before START. */
2082 cp_is_operator (const char *string
, const char *start
)
2084 return ((string
== start
2085 || !valid_identifier_name_char (string
[-1]))
2086 && strncmp (string
, CP_OPERATOR_STR
, CP_OPERATOR_LEN
) == 0
2087 && !valid_identifier_name_char (string
[CP_OPERATOR_LEN
]));
2090 /* If *NAME points at an ABI tag, skip it and return true. Otherwise
2091 leave *NAME unmodified and return false. (see GCC's abi_tag
2092 attribute), such names are demangled as e.g.,
2093 "function[abi:cxx11]()". */
2096 skip_abi_tag (const char **name
)
2098 const char *p
= *name
;
2100 if (startswith (p
, "[abi:"))
2104 while (valid_identifier_name_char (*p
))
2117 /* If *NAME points at a template parameter list, skip it and return true.
2118 Otherwise do nothing and return false. */
2121 skip_template_parameter_list (const char **name
)
2123 const char *p
= *name
;
2127 const char *template_param_list_end
= find_toplevel_char (p
+ 1, '>');
2129 if (template_param_list_end
== NULL
)
2132 p
= template_param_list_end
+ 1;
2134 /* Skip any whitespace that might occur after the closing of the
2135 parameter list, but only if it is the end of parameter list. */
2137 while (ISSPACE (*q
))
2151 strncmp_iw_with_mode (const char *string1
, const char *string2
,
2152 size_t string2_len
, strncmp_iw_mode mode
,
2153 enum language language
,
2154 completion_match_for_lcd
*match_for_lcd
,
2155 bool ignore_template_params
)
2157 const char *string1_start
= string1
;
2158 const char *end_str2
= string2
+ string2_len
;
2159 bool skip_spaces
= true;
2160 bool have_colon_op
= (language
== language_cplus
2161 || language
== language_rust
2162 || language
== language_fortran
);
2164 gdb_assert (match_for_lcd
== nullptr || match_for_lcd
->empty ());
2169 || ((ISSPACE (*string1
) && !valid_identifier_name_char (*string2
))
2170 || (ISSPACE (*string2
) && !valid_identifier_name_char (*string1
))))
2172 skip_ws (string1
, string2
, end_str2
);
2173 skip_spaces
= false;
2176 /* Skip [abi:cxx11] tags in the symbol name if the lookup name
2177 doesn't include them. E.g.:
2179 string1: function[abi:cxx1](int)
2182 string1: function[abi:cxx1](int)
2183 string2: function(int)
2185 string1: Struct[abi:cxx1]::function()
2186 string2: Struct::function()
2188 string1: function(Struct[abi:cxx1], int)
2189 string2: function(Struct, int)
2191 if (string2
== end_str2
2192 || (*string2
!= '[' && !valid_identifier_name_char (*string2
)))
2194 const char *abi_start
= string1
;
2196 /* There can be more than one tag. */
2197 while (*string1
== '[' && skip_abi_tag (&string1
))
2200 if (match_for_lcd
!= NULL
&& abi_start
!= string1
)
2201 match_for_lcd
->mark_ignored_range (abi_start
, string1
);
2203 while (ISSPACE (*string1
))
2207 /* Skip template parameters in STRING1 if STRING2 does not contain
2210 Case 1: User is looking for all functions named "foo".
2211 string1: foo <...> (...)
2214 Case 2: User is looking for all methods named "foo" in all template
2215 class instantiations.
2216 string1: Foo<...>::foo <...> (...)
2217 string2: Foo::foo (...)
2219 Case 3: User is looking for a specific overload of a template
2224 Case 4: User is looking for a specific overload of a specific
2225 template instantiation.
2226 string1: foo<A> (...)
2227 string2: foo<B> (...)
2229 Case 5: User is looking wild parameter match.
2230 string1: foo<A<a<b<...> > > > (...)
2233 if (language
== language_cplus
&& ignore_template_params
2234 && *string1
== '<' && *string2
!= '<')
2236 /* Skip any parameter list in STRING1. */
2237 const char *template_start
= string1
;
2239 if (skip_template_parameter_list (&string1
))
2241 /* Don't mark the parameter list ignored if the user didn't
2242 try to ignore it. [Case #5 above] */
2243 if (*string2
!= '\0'
2244 && match_for_lcd
!= NULL
&& template_start
!= string1
)
2245 match_for_lcd
->mark_ignored_range (template_start
, string1
);
2249 if (*string1
== '\0' || string2
== end_str2
)
2252 /* Handle the :: operator. */
2253 if (have_colon_op
&& string1
[0] == ':' && string1
[1] == ':')
2255 if (*string2
!= ':')
2261 if (string2
== end_str2
)
2264 if (*string2
!= ':')
2270 while (ISSPACE (*string1
))
2272 while (string2
< end_str2
&& ISSPACE (*string2
))
2277 /* Handle C++ user-defined operators. */
2278 else if (language
== language_cplus
2281 if (cp_is_operator (string1
, string1_start
))
2283 /* An operator name in STRING1. Check STRING2. */
2285 = std::min
<size_t> (CP_OPERATOR_LEN
, end_str2
- string2
);
2286 if (strncmp (string1
, string2
, cmplen
) != 0)
2292 if (string2
!= end_str2
)
2294 /* Check for "operatorX" in STRING2. */
2295 if (valid_identifier_name_char (*string2
))
2298 skip_ws (string1
, string2
, end_str2
);
2301 /* Handle operator(). */
2302 if (*string1
== '(')
2304 if (string2
== end_str2
)
2306 if (mode
== strncmp_iw_mode::NORMAL
)
2310 /* Don't break for the regular return at the
2311 bottom, because "operator" should not
2312 match "operator()", since this open
2313 parentheses is not the parameter list
2315 return *string1
!= '\0';
2319 if (*string1
!= *string2
)
2328 skip_ws (string1
, string2
, end_str2
);
2330 /* Skip to end of token, or to END, whatever comes
2332 const char *end_str1
= string1
+ strlen (string1
);
2333 const char *p1
= cp_skip_operator_token (string1
, end_str1
);
2334 const char *p2
= cp_skip_operator_token (string2
, end_str2
);
2336 cmplen
= std::min (p1
- string1
, p2
- string2
);
2339 if (strncmp (string1
, string2
, cmplen
) != 0)
2344 if (p1
- string1
!= p2
- string2
)
2346 if (strncmp (string1
, string2
, cmplen
) != 0)
2353 if (*string1
== '\0' || string2
== end_str2
)
2355 if (*string1
== '(' || *string2
== '(')
2358 /* If STRING1 or STRING2 starts with a template
2359 parameter list, break out of operator processing. */
2360 skip_ws (string1
, string2
, end_str2
);
2361 if (*string1
== '<' || *string2
== '<')
2369 if (case_sensitivity
== case_sensitive_on
&& *string1
!= *string2
)
2371 if (case_sensitivity
== case_sensitive_off
2372 && (TOLOWER ((unsigned char) *string1
)
2373 != TOLOWER ((unsigned char) *string2
)))
2376 /* If we see any non-whitespace, non-identifier-name character
2377 (any of "()<>*&" etc.), then skip spaces the next time
2379 if (!ISSPACE (*string1
) && !valid_identifier_name_char (*string1
))
2386 if (string2
== end_str2
)
2388 if (mode
== strncmp_iw_mode::NORMAL
)
2390 /* Strip abi tag markers from the matched symbol name.
2391 Usually the ABI marker will be found on function name
2392 (automatically added because the function returns an
2393 object marked with an ABI tag). However, it's also
2394 possible to see a marker in one of the function
2395 parameters, for example.
2397 string2 (lookup name):
2400 function(some_struct[abi:cxx11], int)
2402 and for completion LCD computation we want to say that
2404 function(some_struct, int)
2406 if (match_for_lcd
!= NULL
)
2408 while ((string1
= strstr (string1
, "[abi:")) != NULL
)
2410 const char *abi_start
= string1
;
2412 /* There can be more than one tag. */
2413 while (skip_abi_tag (&string1
) && *string1
== '[')
2416 if (abi_start
!= string1
)
2417 match_for_lcd
->mark_ignored_range (abi_start
, string1
);
2425 if (*string1
== '(')
2431 if (*string1
== '(')
2433 else if (*string1
== ')')
2437 while (*string1
!= '\0' && p_count
> 0);
2439 /* There maybe things like 'const' after the parameters,
2440 which we do want to ignore. However, if there's an '@'
2441 then this likely indicates something like '@plt' which we
2442 should not ignore. */
2443 return *string1
== '@';
2446 return *string1
== '\0' ? 0 : 1;
2456 /* Unit tests for strncmp_iw_with_mode. */
2458 #define CHECK_MATCH_LM(S1, S2, MODE, LANG, LCD) \
2459 SELF_CHECK (strncmp_iw_with_mode ((S1), (S2), strlen ((S2)), \
2460 strncmp_iw_mode::MODE, \
2461 (LANG), (LCD)) == 0)
2463 #define CHECK_MATCH_LANG(S1, S2, MODE, LANG) \
2464 CHECK_MATCH_LM ((S1), (S2), MODE, (LANG), nullptr)
2466 #define CHECK_MATCH(S1, S2, MODE) \
2467 CHECK_MATCH_LANG ((S1), (S2), MODE, language_minimal)
2469 #define CHECK_NO_MATCH_LM(S1, S2, MODE, LANG, LCD) \
2470 SELF_CHECK (strncmp_iw_with_mode ((S1), (S2), strlen ((S2)), \
2471 strncmp_iw_mode::MODE, \
2474 #define CHECK_NO_MATCH_LANG(S1, S2, MODE, LANG) \
2475 CHECK_NO_MATCH_LM ((S1), (S2), MODE, (LANG), nullptr)
2477 #define CHECK_NO_MATCH(S1, S2, MODE) \
2478 CHECK_NO_MATCH_LANG ((S1), (S2), MODE, language_minimal)
2481 check_scope_operator (enum language lang
)
2483 CHECK_MATCH_LANG ("::", "::", NORMAL
, lang
);
2484 CHECK_MATCH_LANG ("::foo", "::", NORMAL
, lang
);
2485 CHECK_MATCH_LANG ("::foo", "::foo", NORMAL
, lang
);
2486 CHECK_MATCH_LANG (" :: foo ", "::foo", NORMAL
, lang
);
2487 CHECK_MATCH_LANG ("a::b", "a ::b", NORMAL
, lang
);
2488 CHECK_MATCH_LANG ("a::b", "a\t::b", NORMAL
, lang
);
2489 CHECK_MATCH_LANG ("a::b", "a \t::b", NORMAL
, lang
);
2490 CHECK_MATCH_LANG ("a::b", "a\t ::b", NORMAL
, lang
);
2491 CHECK_MATCH_LANG ("a::b", "a:: b", NORMAL
, lang
);
2492 CHECK_MATCH_LANG ("a::b", "a::\tb", NORMAL
, lang
);
2493 CHECK_MATCH_LANG ("a::b", "a:: \tb", NORMAL
, lang
);
2494 CHECK_MATCH_LANG ("a::b", "a::\t b", NORMAL
, lang
);
2495 CHECK_MATCH_LANG ("a::b", "a :: b", NORMAL
, lang
);
2496 CHECK_MATCH_LANG ("a::b", "a ::\tb", NORMAL
, lang
);
2497 CHECK_MATCH_LANG ("a::b", "a\t:: b", NORMAL
, lang
);
2498 CHECK_MATCH_LANG ("a::b", "a \t::\t b", NORMAL
, lang
);
2499 CHECK_MATCH_LANG ("a ::b", "a::b", NORMAL
, lang
);
2500 CHECK_MATCH_LANG ("a\t::b", "a::b", NORMAL
, lang
);
2501 CHECK_MATCH_LANG ("a \t::b", "a::b", NORMAL
, lang
);
2502 CHECK_MATCH_LANG ("a\t ::b", "a::b", NORMAL
, lang
);
2503 CHECK_MATCH_LANG ("a:: b", "a::b", NORMAL
, lang
);
2504 CHECK_MATCH_LANG ("a::\tb", "a::b", NORMAL
, lang
);
2505 CHECK_MATCH_LANG ("a:: \tb", "a::b", NORMAL
, lang
);
2506 CHECK_MATCH_LANG ("a::\t b", "a::b", NORMAL
, lang
);
2507 CHECK_MATCH_LANG ("a :: b", "a::b", NORMAL
, lang
);
2508 CHECK_MATCH_LANG ("a ::\tb", "a::b", NORMAL
, lang
);
2509 CHECK_MATCH_LANG ("a\t:: b", "a::b", NORMAL
, lang
);
2510 CHECK_MATCH_LANG ("a \t::\t b", "a::b", NORMAL
, lang
);
2511 CHECK_MATCH_LANG ("a::b::c", "a::b::c", NORMAL
, lang
);
2512 CHECK_MATCH_LANG (" a:: b:: c", "a::b::c", NORMAL
, lang
);
2513 CHECK_MATCH_LANG ("a::b::c", " a:: b:: c", NORMAL
, lang
);
2514 CHECK_MATCH_LANG ("a ::b ::c", "a::b::c", NORMAL
, lang
);
2515 CHECK_MATCH_LANG ("a::b::c", "a :: b:: c", NORMAL
, lang
);
2516 CHECK_MATCH_LANG ("\ta::\tb::\tc", "\ta::\tb::\tc", NORMAL
, lang
);
2517 CHECK_MATCH_LANG ("a\t::b\t::c\t", "a\t::b\t::c\t", NORMAL
, lang
);
2518 CHECK_MATCH_LANG (" \ta:: \tb:: \tc", " \ta:: \tb:: \tc", NORMAL
, lang
);
2519 CHECK_MATCH_LANG ("\t a::\t b::\t c", "\t a::\t b::\t c", NORMAL
, lang
);
2520 CHECK_MATCH_LANG ("a::b::c", "\ta::\tb::\tc", NORMAL
, lang
);
2521 CHECK_MATCH_LANG ("a::b::c", "a\t::b\t::c\t", NORMAL
, lang
);
2522 CHECK_MATCH_LANG ("a::b::c", " \ta:: \tb:: \tc", NORMAL
, lang
);
2523 CHECK_MATCH_LANG ("a::b::c", "\t a::\t b::\t c", NORMAL
, lang
);
2524 CHECK_MATCH_LANG ("\ta::\tb::\tc", "a::b::c", NORMAL
, lang
);
2525 CHECK_MATCH_LANG ("a\t::b\t::c\t", "a::b::c", NORMAL
, lang
);
2526 CHECK_MATCH_LANG (" \ta:: \tb:: \tc", "a::b::c", NORMAL
, lang
);
2527 CHECK_MATCH_LANG ("\t a::\t b::\t c", "a::b::c", NORMAL
, lang
);
2528 CHECK_MATCH_LANG ("a :: b:: c\t", "\ta :: b\t:: c\t\t", NORMAL
, lang
);
2529 CHECK_MATCH_LANG (" a::\t \t b:: c\t", "\ta ::b:: c\t\t",
2531 CHECK_MATCH_LANG ("a :: b :: \t\t\tc\t",
2532 "\t\t\t\ta :: \t\t\t b \t\t::c",
2534 CHECK_MATCH_LANG ("a::b()", "a", NORMAL
, lang
);
2535 CHECK_MATCH_LANG ("a::b()", "a::", NORMAL
, lang
);
2536 CHECK_MATCH_LANG ("a::b()", "a::b", NORMAL
, lang
);
2537 CHECK_MATCH_LANG ("a::b(a)", "a", NORMAL
, lang
);
2538 CHECK_MATCH_LANG ("a::b(a)", "a::", NORMAL
, lang
);
2539 CHECK_MATCH_LANG ("a::b(a)", "a::b", NORMAL
, lang
);
2540 CHECK_MATCH_LANG ("a::b(a,b)", "a", NORMAL
, lang
);
2541 CHECK_MATCH_LANG ("a::b(a,b)", "a::", NORMAL
, lang
);
2542 CHECK_MATCH_LANG ("a::b(a,b)", "a::b", NORMAL
, lang
);
2543 CHECK_MATCH_LANG ("a::b(a,b,c)", "a", NORMAL
, lang
);
2544 CHECK_MATCH_LANG ("a::b(a,b,c)", "a::", NORMAL
, lang
);
2545 CHECK_MATCH_LANG ("a::b(a,b,c)", "a::b", NORMAL
, lang
);
2547 CHECK_NO_MATCH_LANG ("a::", "::a", NORMAL
, lang
);
2548 CHECK_NO_MATCH_LANG ("::a", "::a()", NORMAL
, lang
);
2549 CHECK_NO_MATCH_LANG ("::", "::a", NORMAL
, lang
);
2550 CHECK_NO_MATCH_LANG ("a:::b", "a::b", NORMAL
, lang
);
2551 CHECK_NO_MATCH_LANG ("a::b()", "a::b(a)", NORMAL
, lang
);
2552 CHECK_NO_MATCH_LANG ("a::b(a)", "a::b()", NORMAL
, lang
);
2553 CHECK_NO_MATCH_LANG ("a::b(a,b)", "a::b(a,a)", NORMAL
, lang
);
2554 CHECK_NO_MATCH_LANG ("a::b", "a()", NORMAL
, lang
);
2555 CHECK_NO_MATCH_LANG ("a::b", "a::()", NORMAL
, lang
);
2556 CHECK_NO_MATCH_LANG ("a::b", "a::b()", NORMAL
, lang
);
2557 CHECK_NO_MATCH_LANG ("a::b", "a(a)", NORMAL
, lang
);
2558 CHECK_NO_MATCH_LANG ("a::b", "a::(a)", NORMAL
, lang
);
2559 CHECK_NO_MATCH_LANG ("a::b", "a::b()", NORMAL
, lang
);
2560 CHECK_NO_MATCH_LANG ("a::b", "a(a,b)", NORMAL
, lang
);
2561 CHECK_NO_MATCH_LANG ("a::b", "a::(a,b)", NORMAL
, lang
);
2562 CHECK_NO_MATCH_LANG ("a::b", "a::b(a,b)", NORMAL
, lang
);
2563 CHECK_NO_MATCH_LANG ("a::b", "a(a,b,c)", NORMAL
, lang
);
2564 CHECK_NO_MATCH_LANG ("a::b", "a::(a,b,c)", NORMAL
, lang
);
2565 CHECK_NO_MATCH_LANG ("a::b", "a::b(a,b,c)", NORMAL
, lang
);
2568 /* Callback for strncmp_iw_with_mode unit tests. */
2571 strncmp_iw_with_mode_tests ()
2573 /* Some of the following tests are nonsensical, but could be input by a
2574 deranged script (or user). */
2576 /* strncmp_iw_mode::NORMAL: strcmp()-like but ignore any whitespace... */
2578 CHECK_MATCH ("", "", NORMAL
);
2579 CHECK_MATCH ("foo", "foo", NORMAL
);
2580 CHECK_MATCH (" foo", "foo", NORMAL
);
2581 CHECK_MATCH ("foo ", "foo", NORMAL
);
2582 CHECK_MATCH (" foo ", "foo", NORMAL
);
2583 CHECK_MATCH (" foo", "foo", NORMAL
);
2584 CHECK_MATCH ("foo ", "foo", NORMAL
);
2585 CHECK_MATCH (" foo ", "foo", NORMAL
);
2586 CHECK_MATCH ("\tfoo", "foo", NORMAL
);
2587 CHECK_MATCH ("foo\t", "foo", NORMAL
);
2588 CHECK_MATCH ("\tfoo\t", "foo", NORMAL
);
2589 CHECK_MATCH (" \tfoo \t", "foo", NORMAL
);
2590 CHECK_MATCH ("\t foo\t ", "foo", NORMAL
);
2591 CHECK_MATCH ("\t \t \t\t\t\t foo\t\t\t \t\t \t \t \t \t ",
2594 "\t \t \t\t\t\t foo\t\t\t \t\t \t \t \t \t ",
2596 CHECK_MATCH ("foo bar", "foo", NORMAL
);
2597 CHECK_NO_MATCH ("foo", "bar", NORMAL
);
2598 CHECK_NO_MATCH ("foo bar", "foobar", NORMAL
);
2599 CHECK_NO_MATCH (" foo ", "bar", NORMAL
);
2600 CHECK_NO_MATCH ("foo", " bar ", NORMAL
);
2601 CHECK_NO_MATCH (" \t\t foo\t\t ", "\t \t \tbar\t", NORMAL
);
2602 CHECK_NO_MATCH ("@!%&", "@!%&foo", NORMAL
);
2604 /* ... and function parameters in STRING1. */
2605 CHECK_MATCH ("foo()", "foo()", NORMAL
);
2606 CHECK_MATCH ("foo ()", "foo()", NORMAL
);
2607 CHECK_MATCH ("foo ()", "foo()", NORMAL
);
2608 CHECK_MATCH ("foo\t()", "foo()", NORMAL
);
2609 CHECK_MATCH ("foo\t ()", "foo()", NORMAL
);
2610 CHECK_MATCH ("foo \t()", "foo()", NORMAL
);
2611 CHECK_MATCH ("foo()", "foo ()", NORMAL
);
2612 CHECK_MATCH ("foo()", "foo ()", NORMAL
);
2613 CHECK_MATCH ("foo()", "foo\t()", NORMAL
);
2614 CHECK_MATCH ("foo()", "foo\t ()", NORMAL
);
2615 CHECK_MATCH ("foo()", "foo \t()", NORMAL
);
2616 CHECK_MATCH ("foo()", "foo()", NORMAL
);
2617 CHECK_MATCH ("foo ()", "foo ()", NORMAL
);
2618 CHECK_MATCH ("foo ()", "foo ()", NORMAL
);
2619 CHECK_MATCH ("foo\t()", "foo\t()", NORMAL
);
2620 CHECK_MATCH ("foo\t ()", "foo\t ()", NORMAL
);
2621 CHECK_MATCH ("foo \t()", "foo \t()", NORMAL
);
2622 CHECK_MATCH ("foo(a)", "foo(a)", NORMAL
);
2623 CHECK_MATCH ("foo( a)", "foo(a)", NORMAL
);
2624 CHECK_MATCH ("foo(a )", "foo(a)", NORMAL
);
2625 CHECK_MATCH ("foo(\ta)", "foo(a)", NORMAL
);
2626 CHECK_MATCH ("foo(a\t)", "foo(a)", NORMAL
);
2627 CHECK_MATCH ("foo(\t a)", "foo(a)", NORMAL
);
2628 CHECK_MATCH ("foo( \ta)", "foo(a)", NORMAL
);
2629 CHECK_MATCH ("foo(a\t )", "foo(a)", NORMAL
);
2630 CHECK_MATCH ("foo(a \t)", "foo(a)", NORMAL
);
2631 CHECK_MATCH ("foo( a )", "foo(a)", NORMAL
);
2632 CHECK_MATCH ("foo(\ta\t)", "foo(a)", NORMAL
);
2633 CHECK_MATCH ("foo(\t a\t )", "foo(a)", NORMAL
);
2634 CHECK_MATCH ("foo( \ta \t)", "foo(a)", NORMAL
);
2635 CHECK_MATCH ("foo(a)", "foo( a)", NORMAL
);
2636 CHECK_MATCH ("foo(a)", "foo(a )", NORMAL
);
2637 CHECK_MATCH ("foo(a)", "foo(\ta)", NORMAL
);
2638 CHECK_MATCH ("foo(a)", "foo(a\t)", NORMAL
);
2639 CHECK_MATCH ("foo(a)", "foo(\t a)", NORMAL
);
2640 CHECK_MATCH ("foo(a)", "foo( \ta)", NORMAL
);
2641 CHECK_MATCH ("foo(a)", "foo(a\t )", NORMAL
);
2642 CHECK_MATCH ("foo(a)", "foo(a \t)", NORMAL
);
2643 CHECK_MATCH ("foo(a)", "foo( a )", NORMAL
);
2644 CHECK_MATCH ("foo(a)", "foo(\ta\t)", NORMAL
);
2645 CHECK_MATCH ("foo(a)", "foo(\t a\t )", NORMAL
);
2646 CHECK_MATCH ("foo(a)", "foo( \ta \t)", NORMAL
);
2647 CHECK_MATCH ("foo(a,b)", "foo(a,b)", NORMAL
);
2648 CHECK_MATCH ("foo(a ,b)", "foo(a,b)", NORMAL
);
2649 CHECK_MATCH ("foo(a\t,b)", "foo(a,b)", NORMAL
);
2650 CHECK_MATCH ("foo(a,\tb)", "foo(a,b)", NORMAL
);
2651 CHECK_MATCH ("foo(a\t,\tb)", "foo(a,b)", NORMAL
);
2652 CHECK_MATCH ("foo(a \t,b)", "foo(a,b)", NORMAL
);
2653 CHECK_MATCH ("foo(a\t ,b)", "foo(a,b)", NORMAL
);
2654 CHECK_MATCH ("foo(a,\tb)", "foo(a,b)", NORMAL
);
2655 CHECK_MATCH ("foo(a, \tb)", "foo(a,b)", NORMAL
);
2656 CHECK_MATCH ("foo(a,\t b)", "foo(a,b)", NORMAL
);
2657 CHECK_MATCH ("foo(a,b)", "foo(a ,b)", NORMAL
);
2658 CHECK_MATCH ("foo(a,b)", "foo(a\t,b)", NORMAL
);
2659 CHECK_MATCH ("foo(a,b)", "foo(a,\tb)", NORMAL
);
2660 CHECK_MATCH ("foo(a,b)", "foo(a\t,\tb)", NORMAL
);
2661 CHECK_MATCH ("foo(a,b)", "foo(a \t,b)", NORMAL
);
2662 CHECK_MATCH ("foo(a,b)", "foo(a\t ,b)", NORMAL
);
2663 CHECK_MATCH ("foo(a,b)", "foo(a,\tb)", NORMAL
);
2664 CHECK_MATCH ("foo(a,b)", "foo(a, \tb)", NORMAL
);
2665 CHECK_MATCH ("foo(a,b)", "foo(a,\t b)", NORMAL
);
2666 CHECK_MATCH ("foo(a,b,c,d)", "foo(a,b,c,d)", NORMAL
);
2667 CHECK_MATCH (" foo ( a , b , c , d ) ", "foo(a,b,c,d)", NORMAL
);
2668 CHECK_MATCH (" foo ( a , b , c , d ) ", "foo( a , b , c , d )", NORMAL
);
2669 CHECK_MATCH ("foo &\t*(\ta b *\t\t&)", "foo", NORMAL
);
2670 CHECK_MATCH ("foo &\t*(\ta b *\t\t&)", "foo&*(a b * &)", NORMAL
);
2671 CHECK_MATCH ("foo(a) b", "foo(a)", NORMAL
);
2672 CHECK_MATCH ("*foo(*a&)", "*foo", NORMAL
);
2673 CHECK_MATCH ("*foo(*a&)", "*foo(*a&)", NORMAL
);
2674 CHECK_MATCH ("*a&b#c/^d$foo(*a&)", "*a&b#c/^d$foo", NORMAL
);
2675 CHECK_MATCH ("* foo", "*foo", NORMAL
);
2676 CHECK_MATCH ("foo&", "foo", NORMAL
);
2677 CHECK_MATCH ("foo*", "foo", NORMAL
);
2678 CHECK_MATCH ("foo.", "foo", NORMAL
);
2679 CHECK_MATCH ("foo->", "foo", NORMAL
);
2681 CHECK_NO_MATCH ("foo", "foo(", NORMAL
);
2682 CHECK_NO_MATCH ("foo", "foo()", NORMAL
);
2683 CHECK_NO_MATCH ("foo", "foo(a)", NORMAL
);
2684 CHECK_NO_MATCH ("foo", "foo(a)", NORMAL
);
2685 CHECK_NO_MATCH ("foo", "foo*", NORMAL
);
2686 CHECK_NO_MATCH ("foo", "foo (*", NORMAL
);
2687 CHECK_NO_MATCH ("foo*", "foo (*", NORMAL
);
2688 CHECK_NO_MATCH ("foo *", "foo (*", NORMAL
);
2689 CHECK_NO_MATCH ("foo&", "foo (*", NORMAL
);
2690 CHECK_NO_MATCH ("foo &", "foo (*", NORMAL
);
2691 CHECK_NO_MATCH ("foo &*", "foo (&)", NORMAL
);
2692 CHECK_NO_MATCH ("foo & \t *\t", "foo (*", NORMAL
);
2693 CHECK_NO_MATCH ("foo & \t *\t", "foo (*", NORMAL
);
2694 CHECK_NO_MATCH ("foo(a*) b", "foo(a) b", NORMAL
);
2695 CHECK_NO_MATCH ("foo[aqi:A](a)", "foo(b)", NORMAL
);
2696 CHECK_NO_MATCH ("*foo", "foo", NORMAL
);
2697 CHECK_NO_MATCH ("*foo", "foo*", NORMAL
);
2698 CHECK_NO_MATCH ("*foo*", "*foo&", NORMAL
);
2699 CHECK_NO_MATCH ("*foo*", "foo *", NORMAL
);
2700 CHECK_NO_MATCH ("&foo", "foo", NORMAL
);
2701 CHECK_NO_MATCH ("&foo", "foo&", NORMAL
);
2702 CHECK_NO_MATCH ("foo&", "&foo", NORMAL
);
2703 CHECK_NO_MATCH ("foo", "foo&", NORMAL
);
2704 CHECK_NO_MATCH ("foo", "foo*", NORMAL
);
2705 CHECK_NO_MATCH ("foo", "foo.", NORMAL
);
2706 CHECK_NO_MATCH ("foo", "foo->", NORMAL
);
2707 CHECK_NO_MATCH ("foo bar", "foo()", NORMAL
);
2708 CHECK_NO_MATCH ("foo bar", "foo bar()", NORMAL
);
2709 CHECK_NO_MATCH ("foo()", "foo(a)", NORMAL
);
2710 CHECK_NO_MATCH ("*(*)&", "*(*)*", NORMAL
);
2711 CHECK_NO_MATCH ("foo(a)", "foo()", NORMAL
);
2712 CHECK_NO_MATCH ("foo(a)", "foo(b)", NORMAL
);
2713 CHECK_NO_MATCH ("foo(a,b)", "foo(a,b,c)", NORMAL
);
2714 CHECK_NO_MATCH ("foo(a\\b)", "foo()", NORMAL
);
2715 CHECK_NO_MATCH ("foo bar(a b c d)", "foobar", NORMAL
);
2716 CHECK_NO_MATCH ("foo bar(a b c d)", "foobar ( a b c \td\t)\t", NORMAL
);
2718 /* Test scope operator. */
2719 check_scope_operator (language_minimal
);
2720 check_scope_operator (language_cplus
);
2721 check_scope_operator (language_fortran
);
2722 check_scope_operator (language_rust
);
2724 /* Test C++ user-defined operators. */
2725 CHECK_MATCH_LANG ("operator foo(int&)", "operator foo(int &)", NORMAL
,
2727 CHECK_MATCH_LANG ("operator foo(int &)", "operator foo(int &)", NORMAL
,
2729 CHECK_MATCH_LANG ("operator foo(int\t&)", "operator foo(int\t&)", NORMAL
,
2731 CHECK_MATCH_LANG ("operator foo (int)", "operator foo(int)", NORMAL
,
2733 CHECK_MATCH_LANG ("operator foo\t(int)", "operator foo(int)", NORMAL
,
2735 CHECK_MATCH_LANG ("operator foo \t(int)", "operator foo(int)", NORMAL
,
2737 CHECK_MATCH_LANG ("operator foo (int)", "operator foo \t(int)", NORMAL
,
2739 CHECK_MATCH_LANG ("operator foo\t(int)", "operator foo \t(int)", NORMAL
,
2741 CHECK_MATCH_LANG ("operator foo \t(int)", "operator foo \t(int)", NORMAL
,
2744 CHECK_MATCH_LANG ("a::operator foo(int&)", "a::operator foo(int &)", NORMAL
,
2746 CHECK_MATCH_LANG ("a :: operator foo(int &)", "a::operator foo(int &)", NORMAL
,
2748 CHECK_MATCH_LANG ("a \t:: \toperator foo(int\t&)", "a::operator foo(int\t&)", NORMAL
,
2750 CHECK_MATCH_LANG ("a::operator foo (int)", "a::operator foo(int)", NORMAL
,
2752 CHECK_MATCH_LANG ("a::operator foo\t(int)", "a::operator foo(int)", NORMAL
,
2754 CHECK_MATCH_LANG ("a::operator foo \t(int)", "a::operator foo(int)", NORMAL
,
2756 CHECK_MATCH_LANG ("a::operator foo (int)", "a::operator foo \t(int)", NORMAL
,
2758 CHECK_MATCH_LANG ("a::operator foo\t(int)", "a::operator foo \t(int)", NORMAL
,
2760 CHECK_MATCH_LANG ("a::operator foo \t(int)", "a::operator foo \t(int)", NORMAL
,
2763 CHECK_NO_MATCH_LANG ("operator foo(int)", "operator foo(char)", NORMAL
,
2765 CHECK_NO_MATCH_LANG ("operator foo(int)", "operator foo(int *)", NORMAL
,
2767 CHECK_NO_MATCH_LANG ("operator foo(int)", "operator foo(int &)", NORMAL
,
2769 CHECK_NO_MATCH_LANG ("operator foo(int)", "operator foo(int, char *)", NORMAL
,
2771 CHECK_NO_MATCH_LANG ("operator foo(int)", "operator bar(int)", NORMAL
,
2774 CHECK_NO_MATCH_LANG ("a::operator b::foo(int)", "a::operator a::foo(char)", NORMAL
,
2776 CHECK_NO_MATCH_LANG ("a::operator foo(int)", "a::operator foo(int *)", NORMAL
,
2778 CHECK_NO_MATCH_LANG ("a::operator foo(int)", "a::operator foo(int &)", NORMAL
,
2780 CHECK_NO_MATCH_LANG ("a::operator foo(int)", "a::operator foo(int, char *)", NORMAL
,
2782 CHECK_NO_MATCH_LANG ("a::operator foo(int)", "a::operator bar(int)", NORMAL
,
2785 /* Skip "[abi:cxx11]" tags in the symbol name if the lookup name
2786 doesn't include them. These are not language-specific in
2787 strncmp_iw_with_mode. */
2789 CHECK_MATCH ("foo[abi:a]", "foo", NORMAL
);
2790 CHECK_MATCH ("foo[abi:a]()", "foo", NORMAL
);
2791 CHECK_MATCH ("foo[abi:a](a)", "foo", NORMAL
);
2792 CHECK_MATCH ("foo[abi:a](a&,b*)", "foo", NORMAL
);
2793 CHECK_MATCH ("foo[abi:a](a,b)", "foo(a,b)", NORMAL
);
2794 CHECK_MATCH ("foo[abi:a](a,b) c", "foo(a,b) c", NORMAL
);
2795 CHECK_MATCH ("foo[abi:a](a)", "foo(a)", NORMAL
);
2796 CHECK_MATCH ("foo[abi:a](a,b)", "foo(a,b)", NORMAL
);
2797 CHECK_MATCH ("foo[abi:a]", "foo[abi:a]", NORMAL
);
2798 CHECK_MATCH ("foo[ abi:a]", "foo[abi:a]", NORMAL
);
2799 CHECK_MATCH ("foo[\tabi:a]", "foo[abi:a]", NORMAL
);
2800 CHECK_MATCH ("foo[ \tabi:a]", "foo[abi:a]", NORMAL
);
2801 CHECK_MATCH ("foo[\t abi:a]", "foo[abi:a]", NORMAL
);
2802 CHECK_MATCH ("foo[abi :a]", "foo[abi:a]", NORMAL
);
2803 CHECK_MATCH ("foo[abi\t:a]", "foo[abi:a]", NORMAL
);
2804 CHECK_MATCH ("foo[abi \t:a]", "foo[abi:a]", NORMAL
);
2805 CHECK_MATCH ("foo[abi\t :a]", "foo[abi:a]", NORMAL
);
2806 CHECK_MATCH ("foo[abi:a]", "foo[ abi:a]", NORMAL
);
2807 CHECK_MATCH ("foo[abi:a]", "foo[\tabi:a]", NORMAL
);
2808 CHECK_MATCH ("foo[abi:a]", "foo[ \tabi:a]", NORMAL
);
2809 CHECK_MATCH ("foo[abi:a]", "foo[\t abi:a]", NORMAL
);
2810 CHECK_MATCH ("foo[abi:a]", "foo[abi :a]", NORMAL
);
2811 CHECK_MATCH ("foo[abi:a]", "foo[abi\t:a]", NORMAL
);
2812 CHECK_MATCH ("foo[abi:a]", "foo[abi \t:a]", NORMAL
);
2813 CHECK_MATCH ("foo[abi:a]", "foo[abi\t :a]", NORMAL
);
2814 CHECK_MATCH ("foo[abi:a]", "foo[abi:a ]", NORMAL
);
2815 CHECK_MATCH ("foo[abi:a]", "foo[abi:a\t]", NORMAL
);
2816 CHECK_MATCH ("foo[abi:a]", "foo[abi:a \t]", NORMAL
);
2817 CHECK_MATCH ("foo[abi:a]", "foo[abi:a\t ]", NORMAL
);
2818 CHECK_MATCH ("foo[abi:a,b]", "foo[abi:a,b]", NORMAL
);
2819 CHECK_MATCH ("foo[abi:::]", "foo[abi:::]", NORMAL
);
2820 CHECK_MATCH ("foo[abi : : : ]", "foo[abi:::]", NORMAL
);
2821 CHECK_MATCH ("foo[abi:::]", "foo[abi : : : ]", NORMAL
);
2822 CHECK_MATCH ("foo[ \t abi \t:\t: : \t]",
2823 "foo[ abi : \t ::]",
2825 CHECK_MATCH ("foo< bar< baz< quxi > > >(int)", "foo<bar<baz<quxi>>>(int)",
2827 CHECK_MATCH ("\tfoo<\tbar<\tbaz\t<\tquxi\t>\t>\t>(int)",
2828 "foo<bar<baz<quxi>>>(int)", NORMAL
);
2829 CHECK_MATCH (" \tfoo \t< \tbar \t< \tbaz \t< \tquxi \t> \t> \t> \t( \tint \t)",
2830 "foo<bar<baz<quxi>>>(int)", NORMAL
);
2831 CHECK_MATCH ("foo<bar<baz<quxi>>>(int)",
2832 "foo < bar < baz < quxi > > > (int)", NORMAL
);
2833 CHECK_MATCH ("foo<bar<baz<quxi>>>(int)",
2834 "\tfoo\t<\tbar\t<\tbaz\t<\tquxi\t>\t>\t>\t(int)", NORMAL
);
2835 CHECK_MATCH ("foo<bar<baz<quxi>>>(int)",
2836 " \tfoo \t< \tbar \t< \tbaz \t< \tquxi \t> \t> \t> \t( \tint \t)", NORMAL
);
2837 CHECK_MATCH ("foo<bar<baz>>::foo(quxi &)", "fo", NORMAL
);
2838 CHECK_MATCH ("foo<bar<baz>>::foo(quxi &)", "foo", NORMAL
);
2839 CHECK_MATCH ("foo<bar<baz>>::foo(quxi &)", "foo<bar<baz>>::", NORMAL
);
2840 CHECK_MATCH ("foo<bar<baz>>::foo(quxi &)", "foo<bar<baz> >::foo", NORMAL
);
2841 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a][abi:b](bar[abi:c][abi:d])",
2843 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo", NORMAL
);
2844 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo(bar)", NORMAL
);
2845 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a](bar)", NORMAL
);
2846 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo(bar[abi:c])", NORMAL
);
2847 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a](bar[abi:c])", NORMAL
);
2848 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a][abi:b](bar)", NORMAL
);
2849 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a][abi:b](bar[abi:c])",
2851 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo", NORMAL
);
2852 CHECK_NO_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo()", NORMAL
);
2853 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar>", NORMAL
);
2854 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar>(char*, baz)", NORMAL
);
2855 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar>(char*, baz[abi:b])",
2857 CHECK_NO_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar>(char*, baz[abi:A])",
2859 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar[abi:a]>(char*, baz)",
2861 CHECK_NO_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar[abi:A]>(char*, baz)",
2863 CHECK_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])", "foo<bar[abi:a]>(char*, baz[abi:b])",
2865 CHECK_NO_MATCH("foo<bar[abi:a]>(char *, baz[abi:b])",
2866 "foo<bar[abi:a]>(char*, baz[abi:B])", NORMAL
);
2868 CHECK_NO_MATCH ("foo", "foo[", NORMAL
);
2869 CHECK_NO_MATCH ("foo", "foo[]", NORMAL
);
2870 CHECK_NO_MATCH ("foo", "foo[ a]", NORMAL
);
2871 CHECK_NO_MATCH ("foo", "foo[a ]", NORMAL
);
2872 CHECK_NO_MATCH ("foo", "foo[ a ]", NORMAL
);
2873 CHECK_NO_MATCH ("foo", "foo[\ta]", NORMAL
);
2874 CHECK_NO_MATCH ("foo", "foo[a \t]", NORMAL
);
2875 CHECK_NO_MATCH ("foo", "foo[a\t ]", NORMAL
);
2876 CHECK_NO_MATCH ("foo", "foo[ \ta]", NORMAL
);
2877 CHECK_NO_MATCH ("foo", "foo[\t a]", NORMAL
);
2878 CHECK_NO_MATCH ("foo", "foo[ \ta \t]", NORMAL
);
2879 CHECK_NO_MATCH ("foo", "foo[\t a\t ]", NORMAL
);
2880 CHECK_NO_MATCH ("foo", "foo[abi]", NORMAL
);
2881 CHECK_NO_MATCH ("foo", "foo[ abi]", NORMAL
);
2882 CHECK_NO_MATCH ("foo", "foo[abi ]", NORMAL
);
2883 CHECK_NO_MATCH ("foo", "foo[\tabi]", NORMAL
);
2884 CHECK_NO_MATCH ("foo", "foo[abi\t]", NORMAL
);
2885 CHECK_NO_MATCH ("foo", "foo[ \tabi]", NORMAL
);
2886 CHECK_NO_MATCH ("foo", "foo[\t abi]", NORMAL
);
2887 CHECK_NO_MATCH ("foo", "foo[abi \t]", NORMAL
);
2888 CHECK_NO_MATCH ("foo", "foo[abi\t ]", NORMAL
);
2889 CHECK_NO_MATCH ("foo", "foo[abi :]", NORMAL
);
2890 CHECK_NO_MATCH ("foo", "foo[abi\t:]", NORMAL
);
2891 CHECK_NO_MATCH ("foo", "foo[abi \t:]", NORMAL
);
2892 CHECK_NO_MATCH ("foo", "foo[abi\t :]", NORMAL
);
2893 CHECK_NO_MATCH ("foo", "foo[abi: ]", NORMAL
);
2894 CHECK_NO_MATCH ("foo", "foo[abi:\t]", NORMAL
);
2895 CHECK_NO_MATCH ("foo", "foo[abi: \t]", NORMAL
);
2896 CHECK_NO_MATCH ("foo", "foo[abi:\t ]", NORMAL
);
2897 CHECK_NO_MATCH ("foo", "foo[abi: a]", NORMAL
);
2898 CHECK_NO_MATCH ("foo", "foo[abi:\ta]", NORMAL
);
2899 CHECK_NO_MATCH ("foo", "foo[abi: \ta]", NORMAL
);
2900 CHECK_NO_MATCH ("foo", "foo[abi:\t a]", NORMAL
);
2901 CHECK_NO_MATCH ("foo", "foo[abi:a ]", NORMAL
);
2902 CHECK_NO_MATCH ("foo", "foo[abi:a\t]", NORMAL
);
2903 CHECK_NO_MATCH ("foo", "foo[abi:a \t]", NORMAL
);
2904 CHECK_NO_MATCH ("foo", "foo[abi:a\t ]", NORMAL
);
2905 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a)", NORMAL
);
2906 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a)", NORMAL
);
2907 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a)", NORMAL
);
2908 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a)", NORMAL
);
2909 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a) c", NORMAL
);
2910 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a) .", NORMAL
);
2911 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a) *", NORMAL
);
2912 CHECK_NO_MATCH ("foo[abi:a]()", "foo(a) &", NORMAL
);
2913 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b) c", NORMAL
);
2914 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b) .", NORMAL
);
2915 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b) *", NORMAL
);
2916 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b) &", NORMAL
);
2917 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b)c", NORMAL
);
2918 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b).", NORMAL
);
2919 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b)*", NORMAL
);
2920 CHECK_NO_MATCH ("foo[abi:a](a,b)", "foo(a,b)&", NORMAL
);
2921 CHECK_NO_MATCH ("foo[abi:a](a,b) d", "foo(a,b) c", NORMAL
);
2922 CHECK_NO_MATCH ("foo[abi:a](a)", "foo()", NORMAL
);
2923 CHECK_NO_MATCH ("foo[abi:a](a)", "foo(b)", NORMAL
);
2924 CHECK_NO_MATCH ("foo[abi:a](a)", "foo[abi:b](a)", NORMAL
);
2925 CHECK_NO_MATCH ("foo[abi:a](a)", "foo[abi:a](b)", NORMAL
);
2926 CHECK_NO_MATCH ("foo[abi:]", "foo[abi:a]", NORMAL
);
2927 CHECK_NO_MATCH ("foo[abi:", "foo[abi:a]", NORMAL
);
2928 CHECK_NO_MATCH ("foo[abi:]", "foo[abi:a", NORMAL
);
2929 CHECK_NO_MATCH ("foo[abi:,]", "foo[abi:a]", NORMAL
);
2930 CHECK_NO_MATCH ("foo[abi:a,b]", "foo[abi:a]", NORMAL
);
2931 CHECK_NO_MATCH ("foo[abi::a]", "foo[abi:a]", NORMAL
);
2932 CHECK_NO_MATCH ("foo[abi:,([a]", "foo[abi:a]", NORMAL
);
2934 CHECK_MATCH ("foo <a, b [, c (", "foo", NORMAL
);
2935 CHECK_MATCH ("foo >a, b ], c )", "foo", NORMAL
);
2936 CHECK_MATCH ("@!%&\\*", "@!%&\\*", NORMAL
);
2937 CHECK_MATCH ("()", "()", NORMAL
);
2938 CHECK_MATCH ("*(*)*", "*(*)*", NORMAL
);
2939 CHECK_MATCH ("[]", "[]", NORMAL
);
2940 CHECK_MATCH ("<>", "<>", NORMAL
);
2942 /* strncmp_iw_with_mode::MATCH_PARAMS: the "strcmp_iw hack." */
2943 CHECK_MATCH ("foo2", "foo", NORMAL
);
2944 CHECK_NO_MATCH ("foo2", "foo", MATCH_PARAMS
);
2945 CHECK_NO_MATCH ("foo2", "foo ", MATCH_PARAMS
);
2946 CHECK_NO_MATCH ("foo2", "foo\t", MATCH_PARAMS
);
2947 CHECK_NO_MATCH ("foo2", "foo \t", MATCH_PARAMS
);
2948 CHECK_NO_MATCH ("foo2", "foo\t ", MATCH_PARAMS
);
2949 CHECK_NO_MATCH ("foo2", "foo \t", MATCH_PARAMS
);
2950 CHECK_NO_MATCH ("foo2", " foo", MATCH_PARAMS
);
2951 CHECK_NO_MATCH ("foo2", "\tfoo", MATCH_PARAMS
);
2952 CHECK_NO_MATCH ("foo2", " \tfoo", MATCH_PARAMS
);
2953 CHECK_NO_MATCH ("foo2", "\t foo", MATCH_PARAMS
);
2954 CHECK_NO_MATCH (" foo2", "foo", MATCH_PARAMS
);
2955 CHECK_NO_MATCH ("\tfoo2", "foo", MATCH_PARAMS
);
2956 CHECK_NO_MATCH (" \tfoo2", "foo", MATCH_PARAMS
);
2957 CHECK_NO_MATCH ("\t foo2", "foo", MATCH_PARAMS
);
2958 CHECK_NO_MATCH (" foo2 ", " foo ", MATCH_PARAMS
);
2959 CHECK_NO_MATCH ("\tfoo2\t", "\tfoo\t", MATCH_PARAMS
);
2960 CHECK_NO_MATCH (" \tfoo2 \t", " \tfoo \t", MATCH_PARAMS
);
2961 CHECK_NO_MATCH ("\t foo2\t ", "\t foo\t ", MATCH_PARAMS
);
2962 CHECK_NO_MATCH ("foo2 ", "foo", MATCH_PARAMS
);
2963 CHECK_NO_MATCH ("foo2\t", "foo", MATCH_PARAMS
);
2964 CHECK_NO_MATCH ("foo2 ", "foo", MATCH_PARAMS
);
2965 CHECK_NO_MATCH ("foo2 \t", "foo", MATCH_PARAMS
);
2966 CHECK_NO_MATCH ("foo2\t ", "foo", MATCH_PARAMS
);
2967 CHECK_NO_MATCH ("foo2 (args)", "foo", MATCH_PARAMS
);
2968 CHECK_NO_MATCH ("foo2 (args)", "foo", MATCH_PARAMS
);
2969 CHECK_NO_MATCH ("foo2\t(args)", "foo", MATCH_PARAMS
);
2970 CHECK_NO_MATCH ("foo2 \t(args)", "foo", MATCH_PARAMS
);
2971 CHECK_NO_MATCH ("foo2\t (args)", "foo", MATCH_PARAMS
);
2972 CHECK_NO_MATCH ("foo2 ( args)", "foo", MATCH_PARAMS
);
2973 CHECK_NO_MATCH ("foo2(args )", "foo", MATCH_PARAMS
);
2974 CHECK_NO_MATCH ("foo2(args\t)", "foo", MATCH_PARAMS
);
2975 CHECK_NO_MATCH ("foo2 (args \t)", "foo", MATCH_PARAMS
);
2976 CHECK_NO_MATCH ("foo2 (args\t )", "foo", MATCH_PARAMS
);
2977 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo[abi:a][abi:b](bar[abi:c][abi:d])",
2979 CHECK_MATCH ("foo[abi:a][abi:b](bar[abi:c][abi:d])", "foo", MATCH_PARAMS
);
2980 CHECK_NO_MATCH ("foo(args)@plt", "foo", MATCH_PARAMS
);
2981 CHECK_NO_MATCH ("foo((())args(()))@plt", "foo", MATCH_PARAMS
);
2982 CHECK_MATCH ("foo((())args(()))", "foo", MATCH_PARAMS
);
2983 CHECK_MATCH ("foo(args) const", "foo", MATCH_PARAMS
);
2984 CHECK_MATCH ("foo(args)const", "foo", MATCH_PARAMS
);
2986 /* strncmp_iw_with_mode also supports case insensitivity. */
2988 CHECK_NO_MATCH ("FoO", "foo", NORMAL
);
2989 CHECK_NO_MATCH ("FoO", "foo", MATCH_PARAMS
);
2991 scoped_restore restore_case
= make_scoped_restore (&case_sensitivity
);
2992 case_sensitivity
= case_sensitive_off
;
2994 CHECK_MATCH ("FoO", "foo", NORMAL
);
2995 CHECK_MATCH ("FoO", "foo", MATCH_PARAMS
);
2996 CHECK_MATCH ("foo", "FoO", NORMAL
);
2997 CHECK_MATCH ("foo", "FoO", MATCH_PARAMS
);
2999 CHECK_MATCH ("FoO[AbI:abC]()", "foo", NORMAL
);
3000 CHECK_NO_MATCH ("FoO[AbI:abC]()", "foo", MATCH_PARAMS
);
3001 CHECK_MATCH ("FoO2[AbI:abC]()", "foo", NORMAL
);
3002 CHECK_NO_MATCH ("FoO2[AbI:abC]()", "foo", MATCH_PARAMS
);
3004 CHECK_MATCH ("foo[abi:abc]()", "FoO[AbI:abC]()", NORMAL
);
3005 CHECK_MATCH ("foo[abi:abc]()", "FoO[AbI:AbC]()", MATCH_PARAMS
);
3006 CHECK_MATCH ("foo[abi:abc](xyz)", "FoO[AbI:abC](XyZ)", NORMAL
);
3007 CHECK_MATCH ("foo[abi:abc](xyz)", "FoO[AbI:abC](XyZ)", MATCH_PARAMS
);
3008 CHECK_MATCH ("foo[abi:abc][abi:def](xyz)", "FoO[AbI:abC](XyZ)", NORMAL
);
3009 CHECK_MATCH ("foo[abi:abc][abi:def](xyz)", "FoO[AbI:abC](XyZ)",
3011 CHECK_MATCH ("foo<bar<baz>>(bar<baz>)", "FoO<bAr<BaZ>>(bAr<BaZ>)",
3013 CHECK_MATCH ("foo<bar<baz>>(bar<baz>)", "FoO<bAr<BaZ>>(bAr<BaZ>)",
3025 strncmp_iw (const char *string1
, const char *string2
, size_t string2_len
)
3027 return strncmp_iw_with_mode (string1
, string2
, string2_len
,
3028 strncmp_iw_mode::NORMAL
, language_minimal
);
3034 strcmp_iw (const char *string1
, const char *string2
)
3036 return strncmp_iw_with_mode (string1
, string2
, strlen (string2
),
3037 strncmp_iw_mode::MATCH_PARAMS
, language_minimal
);
3040 /* This is like strcmp except that it ignores whitespace and treats
3041 '(' as the first non-NULL character in terms of ordering. Like
3042 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
3043 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
3044 according to that ordering.
3046 If a list is sorted according to this function and if you want to
3047 find names in the list that match some fixed NAME according to
3048 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
3049 where this function would put NAME.
3051 This function must be neutral to the CASE_SENSITIVITY setting as the user
3052 may choose it during later lookup. Therefore this function always sorts
3053 primarily case-insensitively and secondarily case-sensitively.
3055 Here are some examples of why using strcmp to sort is a bad idea:
3059 Say your partial symtab contains: "foo<char *>", "goo". Then, if
3060 we try to do a search for "foo<char*>", strcmp will locate this
3061 after "foo<char *>" and before "goo". Then lookup_partial_symbol
3062 will start looking at strings beginning with "goo", and will never
3063 see the correct match of "foo<char *>".
3065 Parenthesis example:
3067 In practice, this is less like to be an issue, but I'll give it a
3068 shot. Let's assume that '$' is a legitimate character to occur in
3069 symbols. (Which may well even be the case on some systems.) Then
3070 say that the partial symbol table contains "foo$" and "foo(int)".
3071 strcmp will put them in this order, since '$' < '('. Now, if the
3072 user searches for "foo", then strcmp will sort "foo" before "foo$".
3073 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
3074 "foo") is false, so it won't proceed to the actual match of
3075 "foo(int)" with "foo". */
3078 strcmp_iw_ordered (const char *string1
, const char *string2
)
3080 const char *saved_string1
= string1
, *saved_string2
= string2
;
3081 enum case_sensitivity case_pass
= case_sensitive_off
;
3085 /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'.
3086 Provide stub characters if we are already at the end of one of the
3088 char c1
= 'X', c2
= 'X';
3090 while (*string1
!= '\0' && *string2
!= '\0')
3092 while (ISSPACE (*string1
))
3094 while (ISSPACE (*string2
))
3099 case case_sensitive_off
:
3100 c1
= TOLOWER ((unsigned char) *string1
);
3101 c2
= TOLOWER ((unsigned char) *string2
);
3103 case case_sensitive_on
:
3111 if (*string1
!= '\0')
3120 /* Characters are non-equal unless they're both '\0'; we want to
3121 make sure we get the comparison right according to our
3122 comparison in the cases where one of them is '\0' or '('. */
3124 if (*string2
== '\0')
3129 if (*string2
== '\0')
3134 if (*string2
== '\0' || *string2
== '(')
3143 if (case_pass
== case_sensitive_on
)
3146 /* Otherwise the strings were equal in case insensitive way, make
3147 a more fine grained comparison in a case sensitive way. */
3149 case_pass
= case_sensitive_on
;
3150 string1
= saved_string1
;
3151 string2
= saved_string2
;
3158 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
3159 struct cmd_list_element
*c
, const char *value
)
3161 gdb_printf (file
, _("Timestamping debugging messages is %s.\n"),
3167 paddress (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
3169 /* Truncate address to the size of a target address, avoiding shifts
3170 larger or equal than the width of a CORE_ADDR. The local
3171 variable ADDR_BIT stops the compiler reporting a shift overflow
3172 when it won't occur. */
3173 /* NOTE: This assumes that the significant address information is
3174 kept in the least significant bits of ADDR - the upper bits were
3175 either zero or sign extended. Should gdbarch_address_to_pointer or
3176 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
3178 int addr_bit
= gdbarch_addr_bit (gdbarch
);
3180 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
3181 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
3182 return hex_string (addr
);
3185 /* This function is described in "defs.h". */
3188 print_core_address (struct gdbarch
*gdbarch
, CORE_ADDR address
)
3190 int addr_bit
= gdbarch_addr_bit (gdbarch
);
3192 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
3193 address
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
3195 /* FIXME: cagney/2002-05-03: Need local_address_string() function
3196 that returns the language localized string formatted to a width
3197 based on gdbarch_addr_bit. */
3199 return hex_string_custom (address
, 8);
3201 return hex_string_custom (address
, 16);
3204 /* Convert a string back into a CORE_ADDR. */
3206 string_to_core_addr (const char *my_string
)
3210 if (my_string
[0] == '0' && TOLOWER (my_string
[1]) == 'x')
3212 /* Assume that it is in hex. */
3215 for (i
= 2; my_string
[i
] != '\0'; i
++)
3217 if (ISDIGIT (my_string
[i
]))
3218 addr
= (my_string
[i
] - '0') + (addr
* 16);
3219 else if (ISXDIGIT (my_string
[i
]))
3220 addr
= (TOLOWER (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3222 error (_("invalid hex \"%s\""), my_string
);
3227 /* Assume that it is in decimal. */
3230 for (i
= 0; my_string
[i
] != '\0'; i
++)
3232 if (ISDIGIT (my_string
[i
]))
3233 addr
= (my_string
[i
] - '0') + (addr
* 10);
3235 error (_("invalid decimal \"%s\""), my_string
);
3245 gdb_realpath_check_trailer (const char *input
, const char *trailer
)
3247 gdb::unique_xmalloc_ptr
<char> result
= gdb_realpath (input
);
3249 size_t len
= strlen (result
.get ());
3250 size_t trail_len
= strlen (trailer
);
3252 SELF_CHECK (len
>= trail_len
3253 && strcmp (result
.get () + len
- trail_len
, trailer
) == 0);
3257 gdb_realpath_tests ()
3259 /* A file which contains a directory prefix. */
3260 gdb_realpath_check_trailer ("./xfullpath.exp", "/xfullpath.exp");
3261 /* A file which contains a directory prefix. */
3262 gdb_realpath_check_trailer ("../../defs.h", "/defs.h");
3263 /* A one-character filename. */
3264 gdb_realpath_check_trailer ("./a", "/a");
3265 /* A file in the root directory. */
3266 gdb_realpath_check_trailer ("/root_file_which_should_exist",
3267 "/root_file_which_should_exist");
3268 /* A file which does not have a directory prefix. */
3269 gdb_realpath_check_trailer ("xfullpath.exp", "xfullpath.exp");
3270 /* A one-char filename without any directory prefix. */
3271 gdb_realpath_check_trailer ("a", "a");
3272 /* An empty filename. */
3273 gdb_realpath_check_trailer ("", "");
3276 /* Test the gdb_argv::as_array_view method. */
3279 gdb_argv_as_array_view_test ()
3284 gdb::array_view
<char *> view
= argv
.as_array_view ();
3286 SELF_CHECK (view
.data () == nullptr);
3287 SELF_CHECK (view
.size () == 0);
3290 gdb_argv
argv ("une bonne 50");
3292 gdb::array_view
<char *> view
= argv
.as_array_view ();
3294 SELF_CHECK (view
.size () == 3);
3295 SELF_CHECK (strcmp (view
[0], "une") == 0);
3296 SELF_CHECK (strcmp (view
[1], "bonne") == 0);
3297 SELF_CHECK (strcmp (view
[2], "50") == 0);
3301 #endif /* GDB_SELF_TEST */
3303 /* Simple, portable version of dirname that does not modify its
3307 ldirname (const char *filename
)
3309 std::string dirname
;
3310 const char *base
= lbasename (filename
);
3312 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3315 if (base
== filename
)
3318 dirname
= std::string (filename
, base
- filename
);
3320 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3321 create "d:./bar" later instead of the (different) "d:/bar". */
3322 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3323 && !IS_DIR_SEPARATOR (filename
[0]))
3324 dirname
[base
++ - filename
] = '.';
3329 /* Return ARGS parsed as a valid pid, or throw an error. */
3332 parse_pid_to_attach (const char *args
)
3338 error_no_arg (_("process-id to attach"));
3340 dummy
= (char *) args
;
3341 pid
= strtoul (args
, &dummy
, 0);
3342 /* Some targets don't set errno on errors, grrr! */
3343 if ((pid
== 0 && dummy
== args
) || dummy
!= &args
[strlen (args
)])
3344 error (_("Illegal process-id: %s."), args
);
3349 /* Substitute all occurrences of string FROM by string TO in *STRINGP. *STRINGP
3350 must come from xrealloc-compatible allocator and it may be updated. FROM
3351 needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be
3352 located at the start or end of *STRINGP. */
3355 substitute_path_component (char **stringp
, const char *from
, const char *to
)
3357 char *string
= *stringp
, *s
;
3358 const size_t from_len
= strlen (from
);
3359 const size_t to_len
= strlen (to
);
3363 s
= strstr (s
, from
);
3367 if ((s
== string
|| IS_DIR_SEPARATOR (s
[-1])
3368 || s
[-1] == DIRNAME_SEPARATOR
)
3369 && (s
[from_len
] == '\0' || IS_DIR_SEPARATOR (s
[from_len
])
3370 || s
[from_len
] == DIRNAME_SEPARATOR
))
3375 = (char *) xrealloc (string
, (strlen (string
) + to_len
+ 1));
3377 /* Relocate the current S pointer. */
3378 s
= s
- string
+ string_new
;
3379 string
= string_new
;
3381 /* Replace from by to. */
3382 memmove (&s
[to_len
], &s
[from_len
], strlen (&s
[from_len
]) + 1);
3383 memcpy (s
, to
, to_len
);
3398 /* SIGALRM handler for waitpid_with_timeout. */
3401 sigalrm_handler (int signo
)
3403 /* Nothing to do. */
3408 /* Wrapper to wait for child PID to die with TIMEOUT.
3409 TIMEOUT is the time to stop waiting in seconds.
3410 If TIMEOUT is zero, pass WNOHANG to waitpid.
3411 Returns PID if it was successfully waited for, otherwise -1.
3413 Timeouts are currently implemented with alarm and SIGALRM.
3414 If the host does not support them, this waits "forever".
3415 It would be odd though for a host to have waitpid and not SIGALRM. */
3418 wait_to_die_with_timeout (pid_t pid
, int *status
, int timeout
)
3420 pid_t waitpid_result
;
3422 gdb_assert (pid
> 0);
3423 gdb_assert (timeout
>= 0);
3428 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
3429 struct sigaction sa
, old_sa
;
3431 sa
.sa_handler
= sigalrm_handler
;
3432 sigemptyset (&sa
.sa_mask
);
3434 sigaction (SIGALRM
, &sa
, &old_sa
);
3438 ofunc
= signal (SIGALRM
, sigalrm_handler
);
3444 waitpid_result
= waitpid (pid
, status
, 0);
3448 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
3449 sigaction (SIGALRM
, &old_sa
, NULL
);
3451 signal (SIGALRM
, ofunc
);
3456 waitpid_result
= waitpid (pid
, status
, WNOHANG
);
3458 if (waitpid_result
== pid
)
3464 #endif /* HAVE_WAITPID */
3466 /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files.
3467 Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS.
3469 It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and
3470 HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */
3473 gdb_filename_fnmatch (const char *pattern
, const char *string
, int flags
)
3475 gdb_assert ((flags
& FNM_FILE_NAME
) != 0);
3477 /* It is unclear how '\' escaping vs. directory separator should coexist. */
3478 gdb_assert ((flags
& FNM_NOESCAPE
) != 0);
3480 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3482 char *pattern_slash
, *string_slash
;
3484 /* Replace '\' by '/' in both strings. */
3486 pattern_slash
= (char *) alloca (strlen (pattern
) + 1);
3487 strcpy (pattern_slash
, pattern
);
3488 pattern
= pattern_slash
;
3489 for (; *pattern_slash
!= 0; pattern_slash
++)
3490 if (IS_DIR_SEPARATOR (*pattern_slash
))
3491 *pattern_slash
= '/';
3493 string_slash
= (char *) alloca (strlen (string
) + 1);
3494 strcpy (string_slash
, string
);
3495 string
= string_slash
;
3496 for (; *string_slash
!= 0; string_slash
++)
3497 if (IS_DIR_SEPARATOR (*string_slash
))
3498 *string_slash
= '/';
3500 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
3502 #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
3503 flags
|= FNM_CASEFOLD
;
3504 #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */
3506 return fnmatch (pattern
, string
, flags
);
3509 /* Return the number of path elements in PATH.
3517 count_path_elements (const char *path
)
3520 const char *p
= path
;
3522 if (HAS_DRIVE_SPEC (p
))
3524 p
= STRIP_DRIVE_SPEC (p
);
3530 if (IS_DIR_SEPARATOR (*p
))
3535 /* Backup one if last character is /, unless it's the only one. */
3536 if (p
> path
+ 1 && IS_DIR_SEPARATOR (p
[-1]))
3539 /* Add one for the file name, if present. */
3540 if (p
> path
&& !IS_DIR_SEPARATOR (p
[-1]))
3546 /* Remove N leading path elements from PATH.
3547 N must be non-negative.
3548 If PATH has more than N path elements then return NULL.
3549 If PATH has exactly N path elements then return "".
3550 See count_path_elements for a description of how we do the counting. */
3553 strip_leading_path_elements (const char *path
, int n
)
3556 const char *p
= path
;
3558 gdb_assert (n
>= 0);
3563 if (HAS_DRIVE_SPEC (p
))
3565 p
= STRIP_DRIVE_SPEC (p
);
3571 while (*p
!= '\0' && !IS_DIR_SEPARATOR (*p
))
3589 copy_bitwise (gdb_byte
*dest
, ULONGEST dest_offset
,
3590 const gdb_byte
*source
, ULONGEST source_offset
,
3591 ULONGEST nbits
, int bits_big_endian
)
3593 unsigned int buf
, avail
;
3598 if (bits_big_endian
)
3600 /* Start from the end, then work backwards. */
3601 dest_offset
+= nbits
- 1;
3602 dest
+= dest_offset
/ 8;
3603 dest_offset
= 7 - dest_offset
% 8;
3604 source_offset
+= nbits
- 1;
3605 source
+= source_offset
/ 8;
3606 source_offset
= 7 - source_offset
% 8;
3610 dest
+= dest_offset
/ 8;
3612 source
+= source_offset
/ 8;
3616 /* Fill BUF with DEST_OFFSET bits from the destination and 8 -
3617 SOURCE_OFFSET bits from the source. */
3618 buf
= *(bits_big_endian
? source
-- : source
++) >> source_offset
;
3619 buf
<<= dest_offset
;
3620 buf
|= *dest
& ((1 << dest_offset
) - 1);
3622 /* NBITS: bits yet to be written; AVAIL: BUF's fill level. */
3623 nbits
+= dest_offset
;
3624 avail
= dest_offset
+ 8 - source_offset
;
3626 /* Flush 8 bits from BUF, if appropriate. */
3627 if (nbits
>= 8 && avail
>= 8)
3629 *(bits_big_endian
? dest
-- : dest
++) = buf
;
3635 /* Copy the middle part. */
3638 size_t len
= nbits
/ 8;
3640 /* Use a faster method for byte-aligned copies. */
3643 if (bits_big_endian
)
3647 memcpy (dest
+ 1, source
+ 1, len
);
3651 memcpy (dest
, source
, len
);
3660 buf
|= *(bits_big_endian
? source
-- : source
++) << avail
;
3661 *(bits_big_endian
? dest
-- : dest
++) = buf
;
3668 /* Write the last byte. */
3672 buf
|= *source
<< avail
;
3674 buf
&= (1 << nbits
) - 1;
3675 *dest
= (*dest
& (~0U << nbits
)) | buf
;
3681 test_assign_set_return_if_changed ()
3686 for (bool initial
: { false, true })
3690 assign_set_if_changed (a
, 1, changed
);
3691 SELF_CHECK (a
== 1);
3692 SELF_CHECK (changed
== initial
);
3695 for (bool initial
: { false, true })
3699 assign_set_if_changed (a
, 2, changed
);
3700 SELF_CHECK (a
== 2);
3701 SELF_CHECK (changed
== true);
3705 changed
= assign_return_if_changed (a
, 1);
3706 SELF_CHECK (a
== 1);
3707 SELF_CHECK (changed
== false);
3710 assign_set_if_changed (a
, 2, changed
);
3711 SELF_CHECK (a
== 2);
3712 SELF_CHECK (changed
== true);
3716 void _initialize_utils ();
3718 _initialize_utils ()
3720 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
3721 Set number of characters where GDB should wrap lines of its output."), _("\
3722 Show number of characters where GDB should wrap lines of its output."), _("\
3723 This affects where GDB wraps its output to fit the screen width.\n\
3724 Setting this to \"unlimited\" or zero prevents GDB from wrapping its output."),
3726 show_chars_per_line
,
3727 &setlist
, &showlist
);
3729 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
3730 Set number of lines in a page for GDB output pagination."), _("\
3731 Show number of lines in a page for GDB output pagination."), _("\
3732 This affects the number of lines after which GDB will pause\n\
3733 its output and ask you whether to continue.\n\
3734 Setting this to \"unlimited\" or zero causes GDB never pause during output."),
3736 show_lines_per_page
,
3737 &setlist
, &showlist
);
3739 add_setshow_boolean_cmd ("pagination", class_support
,
3740 &pagination_enabled
, _("\
3741 Set state of GDB output pagination."), _("\
3742 Show state of GDB output pagination."), _("\
3743 When pagination is ON, GDB pauses at end of each screenful of\n\
3744 its output and asks you whether to continue.\n\
3745 Turning pagination off is an alternative to \"set height unlimited\"."),
3747 show_pagination_enabled
,
3748 &setlist
, &showlist
);
3750 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
3751 &sevenbit_strings
, _("\
3752 Set printing of 8-bit characters in strings as \\nnn."), _("\
3753 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
3755 show_sevenbit_strings
,
3756 &setprintlist
, &showprintlist
);
3758 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
3759 &debug_timestamp
, _("\
3760 Set timestamping of debugging messages."), _("\
3761 Show timestamping of debugging messages."), _("\
3762 When set, debugging messages will be marked with seconds and microseconds."),
3764 show_debug_timestamp
,
3765 &setdebuglist
, &showdebuglist
);
3767 add_internal_problem_command (&internal_error_problem
);
3768 add_internal_problem_command (&internal_warning_problem
);
3769 add_internal_problem_command (&demangler_warning_problem
);
3771 add_cmd ("screen", class_maintenance
, &maintenance_info_screen
,
3772 _("Show screen characteristics."), &maintenanceinfolist
);
3775 selftests::register_test ("gdb_realpath", gdb_realpath_tests
);
3776 selftests::register_test ("gdb_argv_array_view", gdb_argv_as_array_view_test
);
3777 selftests::register_test ("strncmp_iw_with_mode",
3778 strncmp_iw_with_mode_tests
);
3779 selftests::register_test ("pager", test_pager
);
3780 selftests::register_test ("assign_set_return_if_changed",
3781 test_assign_set_return_if_changed
);