1 /* General utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986-2013 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/>. */
21 #include "dyn-string.h"
22 #include "gdb_assert.h"
24 #include "gdb_string.h"
26 #include "event-top.h"
27 #include "exceptions.h"
28 #include "gdbthread.h"
31 #ifdef HAVE_SYS_RESOURCE_H
32 #include <sys/resource.h>
33 #endif /* HAVE_SYS_RESOURCE_H */
36 #include "tui/tui.h" /* For tui_get_command_dimension. */
43 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
49 #include "timeval-utils.h"
54 #include "gdb-demangle.h"
55 #include "expression.h"
59 #include "filenames.h"
61 #include "gdb_obstack.h"
67 #include "inferior.h" /* for signed_pointer_to_address */
69 #include <sys/param.h> /* For MAXPATHLEN */
71 #include "gdb_curses.h"
73 #include "readline/readline.h"
78 #include "gdb_usleep.h"
80 #include "gdb_regex.h"
83 extern PTR
malloc (); /* ARI: PTR */
85 #if !HAVE_DECL_REALLOC
86 extern PTR
realloc (); /* ARI: PTR */
92 /* readline defines this. */
95 void (*deprecated_error_begin_hook
) (void);
97 /* Prototypes for local functions */
99 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
100 va_list, int) ATTRIBUTE_PRINTF (2, 0);
102 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
104 static void prompt_for_continue (void);
106 static void set_screen_size (void);
107 static void set_width (void);
109 /* Time spent in prompt_for_continue in the currently executing command
110 waiting for user to respond.
111 Initialized in make_command_stats_cleanup.
112 Modified in prompt_for_continue and defaulted_query.
113 Used in report_command_stats. */
115 static struct timeval prompt_for_continue_wait_time
;
117 /* A flag indicating whether to timestamp debugging messages. */
119 static int debug_timestamp
= 0;
121 /* Nonzero if we have job control. */
126 /* Nonzero means a quit has been requested. */
129 #endif /* HAVE_PYTHON */
131 /* Nonzero means quit immediately if Control-C is typed now, rather
132 than waiting until QUIT is executed. Be careful in setting this;
133 code which executes with immediate_quit set has to be very careful
134 about being able to deal with being interrupted at any time. It is
135 almost always better to use QUIT; the only exception I can think of
136 is being able to quit out of a system call (using EINTR loses if
137 the SIGINT happens between the previous QUIT and the system call).
138 To immediately quit in the case in which a SIGINT happens between
139 the previous QUIT and setting immediate_quit (desirable anytime we
140 expect to block), call QUIT after setting immediate_quit. */
146 /* Clear the quit flag. */
149 clear_quit_flag (void)
154 /* Set the quit flag. */
162 /* Return true if the quit flag has been set, false otherwise. */
165 check_quit_flag (void)
167 /* This is written in a particular way to avoid races. */
177 #endif /* HAVE_PYTHON */
179 /* Nonzero means that strings with character values >0x7F should be printed
180 as octal escapes. Zero means just print the value (e.g. it's an
181 international character, and the terminal or window can cope.) */
183 int sevenbit_strings
= 0;
185 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
186 struct cmd_list_element
*c
, const char *value
)
188 fprintf_filtered (file
, _("Printing of 8-bit characters "
189 "in strings as \\nnn is %s.\n"),
193 /* String to be printed before error messages, if any. */
195 char *error_pre_print
;
197 /* String to be printed before quit messages, if any. */
199 char *quit_pre_print
;
201 /* String to be printed before warning messages, if any. */
203 char *warning_pre_print
= "\nwarning: ";
205 int pagination_enabled
= 1;
207 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
208 struct cmd_list_element
*c
, const char *value
)
210 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
214 /* Cleanup utilities.
216 These are not defined in cleanups.c (nor declared in cleanups.h)
217 because while they use the "cleanup API" they are not part of the
221 do_freeargv (void *arg
)
223 freeargv ((char **) arg
);
227 make_cleanup_freeargv (char **arg
)
229 return make_cleanup (do_freeargv
, arg
);
233 do_dyn_string_delete (void *arg
)
235 dyn_string_delete ((dyn_string_t
) arg
);
239 make_cleanup_dyn_string_delete (dyn_string_t arg
)
241 return make_cleanup (do_dyn_string_delete
, arg
);
245 do_bfd_close_cleanup (void *arg
)
251 make_cleanup_bfd_unref (bfd
*abfd
)
253 return make_cleanup (do_bfd_close_cleanup
, abfd
);
257 do_close_cleanup (void *arg
)
265 make_cleanup_close (int fd
)
267 int *saved_fd
= xmalloc (sizeof (fd
));
270 return make_cleanup_dtor (do_close_cleanup
, saved_fd
, xfree
);
273 /* Helper function which does the work for make_cleanup_fclose. */
276 do_fclose_cleanup (void *arg
)
283 /* Return a new cleanup that closes FILE. */
286 make_cleanup_fclose (FILE *file
)
288 return make_cleanup (do_fclose_cleanup
, file
);
291 /* Helper function which does the work for make_cleanup_obstack_free. */
294 do_obstack_free (void *arg
)
296 struct obstack
*ob
= arg
;
298 obstack_free (ob
, NULL
);
301 /* Return a new cleanup that frees OBSTACK. */
304 make_cleanup_obstack_free (struct obstack
*obstack
)
306 return make_cleanup (do_obstack_free
, obstack
);
310 do_ui_file_delete (void *arg
)
312 ui_file_delete (arg
);
316 make_cleanup_ui_file_delete (struct ui_file
*arg
)
318 return make_cleanup (do_ui_file_delete
, arg
);
321 /* Helper function for make_cleanup_ui_out_redirect_pop. */
324 do_ui_out_redirect_pop (void *arg
)
326 struct ui_out
*uiout
= arg
;
328 if (ui_out_redirect (uiout
, NULL
) < 0)
329 warning (_("Cannot restore redirection of the current output protocol"));
332 /* Return a new cleanup that pops the last redirection by ui_out_redirect
333 with NULL parameter. */
336 make_cleanup_ui_out_redirect_pop (struct ui_out
*uiout
)
338 return make_cleanup (do_ui_out_redirect_pop
, uiout
);
342 do_free_section_addr_info (void *arg
)
344 free_section_addr_info (arg
);
348 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
350 return make_cleanup (do_free_section_addr_info
, addrs
);
353 struct restore_integer_closure
360 restore_integer (void *p
)
362 struct restore_integer_closure
*closure
= p
;
364 *(closure
->variable
) = closure
->value
;
367 /* Remember the current value of *VARIABLE and make it restored when
368 the cleanup is run. */
371 make_cleanup_restore_integer (int *variable
)
373 struct restore_integer_closure
*c
=
374 xmalloc (sizeof (struct restore_integer_closure
));
376 c
->variable
= variable
;
377 c
->value
= *variable
;
379 return make_cleanup_dtor (restore_integer
, (void *) c
, xfree
);
382 /* Remember the current value of *VARIABLE and make it restored when
383 the cleanup is run. */
386 make_cleanup_restore_uinteger (unsigned int *variable
)
388 return make_cleanup_restore_integer ((int *) variable
);
391 /* Helper for make_cleanup_unpush_target. */
394 do_unpush_target (void *arg
)
396 struct target_ops
*ops
= arg
;
401 /* Return a new cleanup that unpushes OPS. */
404 make_cleanup_unpush_target (struct target_ops
*ops
)
406 return make_cleanup (do_unpush_target
, ops
);
409 /* Helper for make_cleanup_htab_delete compile time checking the types. */
412 do_htab_delete_cleanup (void *htab_voidp
)
414 htab_t htab
= htab_voidp
;
419 /* Return a new cleanup that deletes HTAB. */
422 make_cleanup_htab_delete (htab_t htab
)
424 return make_cleanup (do_htab_delete_cleanup
, htab
);
427 struct restore_ui_file_closure
429 struct ui_file
**variable
;
430 struct ui_file
*value
;
434 do_restore_ui_file (void *p
)
436 struct restore_ui_file_closure
*closure
= p
;
438 *(closure
->variable
) = closure
->value
;
441 /* Remember the current value of *VARIABLE and make it restored when
442 the cleanup is run. */
445 make_cleanup_restore_ui_file (struct ui_file
**variable
)
447 struct restore_ui_file_closure
*c
= XNEW (struct restore_ui_file_closure
);
449 c
->variable
= variable
;
450 c
->value
= *variable
;
452 return make_cleanup_dtor (do_restore_ui_file
, (void *) c
, xfree
);
455 /* Helper for make_cleanup_value_free_to_mark. */
458 do_value_free_to_mark (void *value
)
460 value_free_to_mark ((struct value
*) value
);
463 /* Free all values allocated since MARK was obtained by value_mark
464 (except for those released) when the cleanup is run. */
467 make_cleanup_value_free_to_mark (struct value
*mark
)
469 return make_cleanup (do_value_free_to_mark
, mark
);
472 /* Helper for make_cleanup_value_free. */
475 do_value_free (void *value
)
483 make_cleanup_value_free (struct value
*value
)
485 return make_cleanup (do_value_free
, value
);
488 /* Helper for make_cleanup_free_so. */
491 do_free_so (void *arg
)
493 struct so_list
*so
= arg
;
498 /* Make cleanup handler calling free_so for SO. */
501 make_cleanup_free_so (struct so_list
*so
)
503 return make_cleanup (do_free_so
, so
);
506 /* Helper for make_cleanup_restore_current_language. */
509 do_restore_current_language (void *p
)
511 enum language saved_lang
= (uintptr_t) p
;
513 set_language (saved_lang
);
516 /* Remember the current value of CURRENT_LANGUAGE and make it restored when
517 the cleanup is run. */
520 make_cleanup_restore_current_language (void)
522 enum language saved_lang
= current_language
->la_language
;
524 return make_cleanup (do_restore_current_language
,
525 (void *) (uintptr_t) saved_lang
);
528 /* This function is useful for cleanups.
532 old_chain = make_cleanup (free_current_contents, &foo);
534 to arrange to free the object thus allocated. */
537 free_current_contents (void *ptr
)
539 void **location
= ptr
;
541 if (location
== NULL
)
542 internal_error (__FILE__
, __LINE__
,
543 _("free_current_contents: NULL pointer"));
544 if (*location
!= NULL
)
551 /* If nonzero, display time usage both at startup and for each command. */
553 static int display_time
;
555 /* If nonzero, display space usage both at startup and for each command. */
557 static int display_space
;
559 /* Records a run time and space usage to be used as a base for
560 reporting elapsed time or change in space. In addition,
561 the msg_type field indicates whether the saved time is from the
562 beginning of GDB execution (0) or the beginning of an individual
563 command execution (1). */
568 struct timeval start_wall_time
;
572 /* Set whether to display time statistics to NEW_VALUE (non-zero
575 set_display_time (int new_value
)
577 display_time
= new_value
;
580 /* Set whether to display space statistics to NEW_VALUE (non-zero
583 set_display_space (int new_value
)
585 display_space
= new_value
;
588 /* As indicated by display_time and display_space, report GDB's elapsed time
589 and space usage from the base time and space provided in ARG, which
590 must be a pointer to a struct cmd_stat. This function is intended
591 to be called as a cleanup. */
593 report_command_stats (void *arg
)
595 struct cmd_stats
*start_stats
= (struct cmd_stats
*) arg
;
596 int msg_type
= start_stats
->msg_type
;
600 long cmd_time
= get_run_time () - start_stats
->start_cpu_time
;
601 struct timeval now_wall_time
, delta_wall_time
;
603 gettimeofday (&now_wall_time
, NULL
);
604 timeval_sub (&delta_wall_time
,
605 &now_wall_time
, &start_stats
->start_wall_time
);
607 /* Subtract time spend in prompt_for_continue from walltime. */
608 timeval_sub (&delta_wall_time
,
609 &delta_wall_time
, &prompt_for_continue_wait_time
);
611 printf_unfiltered (msg_type
== 0
612 ? _("Startup time: %ld.%06ld (cpu), %ld.%06ld (wall)\n")
613 : _("Command execution time: %ld.%06ld (cpu), %ld.%06ld (wall)\n"),
614 cmd_time
/ 1000000, cmd_time
% 1000000,
615 (long) delta_wall_time
.tv_sec
,
616 (long) delta_wall_time
.tv_usec
);
622 char *lim
= (char *) sbrk (0);
624 long space_now
= lim
- lim_at_start
;
625 long space_diff
= space_now
- start_stats
->start_space
;
627 printf_unfiltered (msg_type
== 0
628 ? _("Space used: %ld (%s%ld during startup)\n")
629 : _("Space used: %ld (%s%ld for this command)\n"),
631 (space_diff
>= 0 ? "+" : ""),
637 /* Create a cleanup that reports time and space used since its
638 creation. Precise messages depend on MSG_TYPE:
639 0: Initial time/space
640 1: Individual command time/space. */
642 make_command_stats_cleanup (int msg_type
)
644 static const struct timeval zero_timeval
= { 0 };
645 struct cmd_stats
*new_stat
= XMALLOC (struct cmd_stats
);
648 char *lim
= (char *) sbrk (0);
649 new_stat
->start_space
= lim
- lim_at_start
;
652 new_stat
->msg_type
= msg_type
;
653 new_stat
->start_cpu_time
= get_run_time ();
654 gettimeofday (&new_stat
->start_wall_time
, NULL
);
656 /* Initalize timer to keep track of how long we waited for the user. */
657 prompt_for_continue_wait_time
= zero_timeval
;
659 return make_cleanup_dtor (report_command_stats
, new_stat
, xfree
);
664 /* Print a warning message. The first argument STRING is the warning
665 message, used as an fprintf format string, the second is the
666 va_list of arguments for that string. A warning is unfiltered (not
667 paginated) so that the user does not need to page through each
668 screen full of warnings when there are lots of them. */
671 vwarning (const char *string
, va_list args
)
673 if (deprecated_warning_hook
)
674 (*deprecated_warning_hook
) (string
, args
);
677 target_terminal_ours ();
678 wrap_here (""); /* Force out any buffered output. */
679 gdb_flush (gdb_stdout
);
680 if (warning_pre_print
)
681 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
682 vfprintf_unfiltered (gdb_stderr
, string
, args
);
683 fprintf_unfiltered (gdb_stderr
, "\n");
688 /* Print a warning message.
689 The first argument STRING is the warning message, used as a fprintf string,
690 and the remaining args are passed as arguments to it.
691 The primary difference between warnings and errors is that a warning
692 does not force the return to command level. */
695 warning (const char *string
, ...)
699 va_start (args
, string
);
700 vwarning (string
, args
);
704 /* Print an error message and return to command level.
705 The first argument STRING is the error message, used as a fprintf string,
706 and the remaining args are passed as arguments to it. */
709 verror (const char *string
, va_list args
)
711 throw_verror (GENERIC_ERROR
, string
, args
);
715 error (const char *string
, ...)
719 va_start (args
, string
);
720 throw_verror (GENERIC_ERROR
, string
, args
);
724 /* Print an error message and quit.
725 The first argument STRING is the error message, used as a fprintf string,
726 and the remaining args are passed as arguments to it. */
729 vfatal (const char *string
, va_list args
)
731 throw_vfatal (string
, args
);
735 fatal (const char *string
, ...)
739 va_start (args
, string
);
740 throw_vfatal (string
, args
);
745 error_stream (struct ui_file
*stream
)
747 char *message
= ui_file_xstrdup (stream
, NULL
);
749 make_cleanup (xfree
, message
);
750 error (("%s"), message
);
753 /* Dump core trying to increase the core soft limit to hard limit first. */
758 #ifdef HAVE_SETRLIMIT
759 struct rlimit rlim
= { RLIM_INFINITY
, RLIM_INFINITY
};
761 setrlimit (RLIMIT_CORE
, &rlim
);
762 #endif /* HAVE_SETRLIMIT */
764 abort (); /* NOTE: GDB has only three calls to abort(). */
767 /* Check whether GDB will be able to dump core using the dump_core
771 can_dump_core (const char *reason
)
773 #ifdef HAVE_GETRLIMIT
776 /* Be quiet and assume we can dump if an error is returned. */
777 if (getrlimit (RLIMIT_CORE
, &rlim
) != 0)
780 if (rlim
.rlim_max
== 0)
782 fprintf_unfiltered (gdb_stderr
,
783 _("%s\nUnable to dump core, use `ulimit -c"
784 " unlimited' before executing GDB next time.\n"),
788 #endif /* HAVE_GETRLIMIT */
793 /* Allow the user to configure the debugger behavior with respect to
794 what to do when an internal problem is detected. */
796 const char internal_problem_ask
[] = "ask";
797 const char internal_problem_yes
[] = "yes";
798 const char internal_problem_no
[] = "no";
799 static const char *const internal_problem_modes
[] =
801 internal_problem_ask
,
802 internal_problem_yes
,
807 /* Print a message reporting an internal error/warning. Ask the user
808 if they want to continue, dump core, or just exit. Return
809 something to indicate a quit. */
811 struct internal_problem
814 const char *should_quit
;
815 const char *should_dump_core
;
818 /* Report a problem, internal to GDB, to the user. Once the problem
819 has been reported, and assuming GDB didn't quit, the caller can
820 either allow execution to resume or throw an error. */
822 static void ATTRIBUTE_PRINTF (4, 0)
823 internal_vproblem (struct internal_problem
*problem
,
824 const char *file
, int line
, const char *fmt
, va_list ap
)
831 /* Don't allow infinite error/warning recursion. */
833 static char msg
[] = "Recursive internal problem.\n";
842 fputs_unfiltered (msg
, gdb_stderr
);
843 abort (); /* NOTE: GDB has only three calls to abort(). */
846 /* Newer GLIBC versions put the warn_unused_result attribute
847 on write, but this is one of those rare cases where
848 ignoring the return value is correct. Casting to (void)
849 does not fix this problem. This is the solution suggested
850 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
851 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
852 abort (); /* NOTE: GDB has only three calls to abort(). */
857 /* Try to get the message out and at the start of a new line. */
858 target_terminal_ours ();
861 /* Create a string containing the full error/warning message. Need
862 to call query with this full string, as otherwize the reason
863 (error/warning) and question become separated. Format using a
864 style similar to a compiler error message. Include extra detail
865 so that the user knows that they are living on the edge. */
869 msg
= xstrvprintf (fmt
, ap
);
870 reason
= xstrprintf ("%s:%d: %s: %s\n"
871 "A problem internal to GDB has been detected,\n"
872 "further debugging may prove unreliable.",
873 file
, line
, problem
->name
, msg
);
875 make_cleanup (xfree
, reason
);
878 if (problem
->should_quit
== internal_problem_ask
)
880 /* Default (yes/batch case) is to quit GDB. When in batch mode
881 this lessens the likelihood of GDB going into an infinite
885 /* Emit the message and quit. */
886 fputs_unfiltered (reason
, gdb_stderr
);
887 fputs_unfiltered ("\n", gdb_stderr
);
891 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
893 else if (problem
->should_quit
== internal_problem_yes
)
895 else if (problem
->should_quit
== internal_problem_no
)
898 internal_error (__FILE__
, __LINE__
, _("bad switch"));
900 if (problem
->should_dump_core
== internal_problem_ask
)
902 if (!can_dump_core (reason
))
906 /* Default (yes/batch case) is to dump core. This leaves a GDB
907 `dropping' so that it is easier to see that something went
909 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
912 else if (problem
->should_dump_core
== internal_problem_yes
)
913 dump_core_p
= can_dump_core (reason
);
914 else if (problem
->should_dump_core
== internal_problem_no
)
917 internal_error (__FILE__
, __LINE__
, _("bad switch"));
930 #ifdef HAVE_WORKING_FORK
940 static struct internal_problem internal_error_problem
= {
941 "internal-error", internal_problem_ask
, internal_problem_ask
945 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
947 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
948 deprecated_throw_reason (RETURN_ERROR
);
952 internal_error (const char *file
, int line
, const char *string
, ...)
956 va_start (ap
, string
);
957 internal_verror (file
, line
, string
, ap
);
961 static struct internal_problem internal_warning_problem
= {
962 "internal-warning", internal_problem_ask
, internal_problem_ask
966 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
968 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
972 internal_warning (const char *file
, int line
, const char *string
, ...)
976 va_start (ap
, string
);
977 internal_vwarning (file
, line
, string
, ap
);
981 /* Dummy functions to keep add_prefix_cmd happy. */
984 set_internal_problem_cmd (char *args
, int from_tty
)
989 show_internal_problem_cmd (char *args
, int from_tty
)
993 /* When GDB reports an internal problem (error or warning) it gives
994 the user the opportunity to quit GDB and/or create a core file of
995 the current debug session. This function registers a few commands
996 that make it possible to specify that GDB should always or never
997 quit or create a core file, without asking. The commands look
1000 maint set PROBLEM-NAME quit ask|yes|no
1001 maint show PROBLEM-NAME quit
1002 maint set PROBLEM-NAME corefile ask|yes|no
1003 maint show PROBLEM-NAME corefile
1005 Where PROBLEM-NAME is currently "internal-error" or
1006 "internal-warning". */
1009 add_internal_problem_command (struct internal_problem
*problem
)
1011 struct cmd_list_element
**set_cmd_list
;
1012 struct cmd_list_element
**show_cmd_list
;
1016 set_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1017 show_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1018 *set_cmd_list
= NULL
;
1019 *show_cmd_list
= NULL
;
1021 set_doc
= xstrprintf (_("Configure what GDB does when %s is detected."),
1024 show_doc
= xstrprintf (_("Show what GDB does when %s is detected."),
1027 add_prefix_cmd ((char*) problem
->name
,
1028 class_maintenance
, set_internal_problem_cmd
, set_doc
,
1030 concat ("maintenance set ", problem
->name
, " ",
1032 0/*allow-unknown*/, &maintenance_set_cmdlist
);
1034 add_prefix_cmd ((char*) problem
->name
,
1035 class_maintenance
, show_internal_problem_cmd
, show_doc
,
1037 concat ("maintenance show ", problem
->name
, " ",
1039 0/*allow-unknown*/, &maintenance_show_cmdlist
);
1041 set_doc
= xstrprintf (_("Set whether GDB should quit "
1042 "when an %s is detected"),
1044 show_doc
= xstrprintf (_("Show whether GDB will quit "
1045 "when an %s is detected"),
1047 add_setshow_enum_cmd ("quit", class_maintenance
,
1048 internal_problem_modes
,
1049 &problem
->should_quit
,
1052 NULL
, /* help_doc */
1054 NULL
, /* showfunc */
1061 set_doc
= xstrprintf (_("Set whether GDB should create a core "
1062 "file of GDB when %s is detected"),
1064 show_doc
= xstrprintf (_("Show whether GDB will create a core "
1065 "file of GDB when %s is detected"),
1067 add_setshow_enum_cmd ("corefile", class_maintenance
,
1068 internal_problem_modes
,
1069 &problem
->should_dump_core
,
1072 NULL
, /* help_doc */
1074 NULL
, /* showfunc */
1082 /* Print the system error message for errno, and also mention STRING
1083 as the file name for which the error was encountered.
1084 Then return to command level. */
1087 perror_with_name (const char *string
)
1092 err
= safe_strerror (errno
);
1093 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1094 strcpy (combined
, string
);
1095 strcat (combined
, ": ");
1096 strcat (combined
, err
);
1098 /* I understand setting these is a matter of taste. Still, some people
1099 may clear errno but not know about bfd_error. Doing this here is not
1101 bfd_set_error (bfd_error_no_error
);
1104 error (_("%s."), combined
);
1107 /* Print the system error message for ERRCODE, and also mention STRING
1108 as the file name for which the error was encountered. */
1111 print_sys_errmsg (const char *string
, int errcode
)
1116 err
= safe_strerror (errcode
);
1117 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1118 strcpy (combined
, string
);
1119 strcat (combined
, ": ");
1120 strcat (combined
, err
);
1122 /* We want anything which was printed on stdout to come out first, before
1124 gdb_flush (gdb_stdout
);
1125 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1128 /* Control C eventually causes this to be called, at a convenient time. */
1134 /* No steenking SIGINT will ever be coming our way when the
1135 program is resumed. Don't lie. */
1139 /* If there is no terminal switching for this target, then we can't
1140 possibly get screwed by the lack of job control. */
1141 || current_target
.to_terminal_ours
== NULL
)
1144 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1149 /* Called when a memory allocation fails, with the number of bytes of
1150 memory requested in SIZE. */
1153 malloc_failure (long size
)
1157 internal_error (__FILE__
, __LINE__
,
1158 _("virtual memory exhausted: can't allocate %ld bytes."),
1163 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1167 /* My replacement for the read system call.
1168 Used like `read' but keeps going if `read' returns too soon. */
1171 myread (int desc
, char *addr
, int len
)
1178 val
= read (desc
, addr
, len
);
1182 return orglen
- len
;
1189 /* Make a copy of the string at PTR with SIZE characters
1190 (and add a null character at the end in the copy).
1191 Uses malloc to get the space. Returns the address of the copy. */
1194 savestring (const char *ptr
, size_t size
)
1196 char *p
= (char *) xmalloc (size
+ 1);
1198 memcpy (p
, ptr
, size
);
1204 print_spaces (int n
, struct ui_file
*file
)
1206 fputs_unfiltered (n_spaces (n
), file
);
1209 /* Print a host address. */
1212 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1214 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1218 /* A cleanup function that calls regfree. */
1221 do_regfree_cleanup (void *r
)
1226 /* Create a new cleanup that frees the compiled regular expression R. */
1229 make_regfree_cleanup (regex_t
*r
)
1231 return make_cleanup (do_regfree_cleanup
, r
);
1234 /* Return an xmalloc'd error message resulting from a regular
1235 expression compilation failure. */
1238 get_regcomp_error (int code
, regex_t
*rx
)
1240 size_t length
= regerror (code
, rx
, NULL
, 0);
1241 char *result
= xmalloc (length
);
1243 regerror (code
, rx
, result
, length
);
1249 /* This function supports the query, nquery, and yquery functions.
1250 Ask user a y-or-n question and return 0 if answer is no, 1 if
1251 answer is yes, or default the answer to the specified default
1252 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1253 default answer, or '\0' for no default.
1254 CTLSTR is the control string and should end in "? ". It should
1255 not say how to answer, because we do that.
1256 ARGS are the arguments passed along with the CTLSTR argument to
1259 static int ATTRIBUTE_PRINTF (1, 0)
1260 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1266 char def_answer
, not_def_answer
;
1267 char *y_string
, *n_string
, *question
;
1268 /* Used to add duration we waited for user to respond to
1269 prompt_for_continue_wait_time. */
1270 struct timeval prompt_started
, prompt_ended
, prompt_delta
;
1272 /* Set up according to which answer is the default. */
1273 if (defchar
== '\0')
1277 not_def_answer
= 'N';
1281 else if (defchar
== 'y')
1285 not_def_answer
= 'N';
1293 not_def_answer
= 'Y';
1298 /* Automatically answer the default value if the user did not want
1299 prompts or the command was issued with the server prefix. */
1300 if (!confirm
|| server_command
)
1303 /* If input isn't coming from the user directly, just say what
1304 question we're asking, and then answer the default automatically. This
1305 way, important error messages don't get lost when talking to GDB
1307 if (! input_from_terminal_p ())
1310 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1312 printf_filtered (_("(%s or %s) [answered %c; "
1313 "input not from terminal]\n"),
1314 y_string
, n_string
, def_answer
);
1315 gdb_flush (gdb_stdout
);
1320 if (deprecated_query_hook
)
1322 return deprecated_query_hook (ctlstr
, args
);
1325 /* Format the question outside of the loop, to avoid reusing args. */
1326 question
= xstrvprintf (ctlstr
, args
);
1328 /* Used for calculating time spend waiting for user. */
1329 gettimeofday (&prompt_started
, NULL
);
1333 wrap_here (""); /* Flush any buffered output. */
1334 gdb_flush (gdb_stdout
);
1336 if (annotation_level
> 1)
1337 printf_filtered (("\n\032\032pre-query\n"));
1339 fputs_filtered (question
, gdb_stdout
);
1340 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1342 if (annotation_level
> 1)
1343 printf_filtered (("\n\032\032query\n"));
1346 gdb_flush (gdb_stdout
);
1348 answer
= fgetc (stdin
);
1350 /* We expect fgetc to block until a character is read. But
1351 this may not be the case if the terminal was opened with
1352 the NONBLOCK flag. In that case, if there is nothing to
1353 read on stdin, fgetc returns EOF, but also sets the error
1354 condition flag on stdin and errno to EAGAIN. With a true
1355 EOF, stdin's error condition flag is not set.
1357 A situation where this behavior was observed is a pseudo
1359 while (answer
== EOF
&& ferror (stdin
) && errno
== EAGAIN
)
1361 /* Not a real EOF. Wait a little while and try again until
1362 we read something. */
1365 answer
= fgetc (stdin
);
1368 clearerr (stdin
); /* in case of C-d */
1369 if (answer
== EOF
) /* C-d */
1371 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1375 /* Eat rest of input line, to EOF or newline. */
1379 ans2
= fgetc (stdin
);
1382 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1386 /* Check answer. For the non-default, the user must specify
1387 the non-default explicitly. */
1388 if (answer
== not_def_answer
)
1390 retval
= !def_value
;
1393 /* Otherwise, if a default was specified, the user may either
1394 specify the required input or have it default by entering
1396 if (answer
== def_answer
1397 || (defchar
!= '\0' &&
1398 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1403 /* Invalid entries are not defaulted and require another selection. */
1404 printf_filtered (_("Please answer %s or %s.\n"),
1405 y_string
, n_string
);
1408 /* Add time spend in this routine to prompt_for_continue_wait_time. */
1409 gettimeofday (&prompt_ended
, NULL
);
1410 timeval_sub (&prompt_delta
, &prompt_ended
, &prompt_started
);
1411 timeval_add (&prompt_for_continue_wait_time
,
1412 &prompt_for_continue_wait_time
, &prompt_delta
);
1415 if (annotation_level
> 1)
1416 printf_filtered (("\n\032\032post-query\n"));
1421 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1422 answer is yes, or 0 if answer is defaulted.
1423 Takes three args which are given to printf to print the question.
1424 The first, a control string, should end in "? ".
1425 It should not say how to answer, because we do that. */
1428 nquery (const char *ctlstr
, ...)
1433 va_start (args
, ctlstr
);
1434 ret
= defaulted_query (ctlstr
, 'n', args
);
1439 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1440 answer is yes, or 1 if answer is defaulted.
1441 Takes three args which are given to printf to print the question.
1442 The first, a control string, should end in "? ".
1443 It should not say how to answer, because we do that. */
1446 yquery (const char *ctlstr
, ...)
1451 va_start (args
, ctlstr
);
1452 ret
= defaulted_query (ctlstr
, 'y', args
);
1457 /* Ask user a y-or-n question and return 1 iff answer is yes.
1458 Takes three args which are given to printf to print the question.
1459 The first, a control string, should end in "? ".
1460 It should not say how to answer, because we do that. */
1463 query (const char *ctlstr
, ...)
1468 va_start (args
, ctlstr
);
1469 ret
= defaulted_query (ctlstr
, '\0', args
);
1474 /* A helper for parse_escape that converts a host character to a
1475 target character. C is the host character. If conversion is
1476 possible, then the target character is stored in *TARGET_C and the
1477 function returns 1. Otherwise, the function returns 0. */
1480 host_char_to_target (struct gdbarch
*gdbarch
, int c
, int *target_c
)
1482 struct obstack host_data
;
1484 struct cleanup
*cleanups
;
1487 obstack_init (&host_data
);
1488 cleanups
= make_cleanup_obstack_free (&host_data
);
1490 convert_between_encodings (target_charset (gdbarch
), host_charset (),
1491 &the_char
, 1, 1, &host_data
, translit_none
);
1493 if (obstack_object_size (&host_data
) == 1)
1496 *target_c
= *(char *) obstack_base (&host_data
);
1499 do_cleanups (cleanups
);
1503 /* Parse a C escape sequence. STRING_PTR points to a variable
1504 containing a pointer to the string to parse. That pointer
1505 should point to the character after the \. That pointer
1506 is updated past the characters we use. The value of the
1507 escape sequence is returned.
1509 A negative value means the sequence \ newline was seen,
1510 which is supposed to be equivalent to nothing at all.
1512 If \ is followed by a null character, we return a negative
1513 value and leave the string pointer pointing at the null character.
1515 If \ is followed by 000, we return 0 and leave the string pointer
1516 after the zeros. A value of 0 does not mean end of string. */
1519 parse_escape (struct gdbarch
*gdbarch
, char **string_ptr
)
1521 int target_char
= -2; /* Initialize to avoid GCC warnings. */
1522 int c
= *(*string_ptr
)++;
1541 int i
= host_hex_value (c
);
1546 if (isdigit (c
) && c
!= '8' && c
!= '9')
1550 i
+= host_hex_value (c
);
1586 if (!host_char_to_target (gdbarch
, c
, &target_char
))
1587 error (_("The escape sequence `\\%c' is equivalent to plain `%c',"
1588 " which has no equivalent\nin the `%s' character set."),
1589 c
, c
, target_charset (gdbarch
));
1593 /* Print the character C on STREAM as part of the contents of a literal
1594 string whose delimiter is QUOTER. Note that this routine should only
1595 be call for printing things which are independent of the language
1596 of the program being debugged. */
1599 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1600 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1601 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1603 c
&= 0xFF; /* Avoid sign bit follies */
1605 if (c
< 0x20 || /* Low control chars */
1606 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1607 (sevenbit_strings
&& c
>= 0x80))
1608 { /* high order bit set */
1612 do_fputs ("\\n", stream
);
1615 do_fputs ("\\b", stream
);
1618 do_fputs ("\\t", stream
);
1621 do_fputs ("\\f", stream
);
1624 do_fputs ("\\r", stream
);
1627 do_fputs ("\\e", stream
);
1630 do_fputs ("\\a", stream
);
1633 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1639 if (c
== '\\' || c
== quoter
)
1640 do_fputs ("\\", stream
);
1641 do_fprintf (stream
, "%c", c
);
1645 /* Print the character C on STREAM as part of the contents of a
1646 literal string whose delimiter is QUOTER. Note that these routines
1647 should only be call for printing things which are independent of
1648 the language of the program being debugged. */
1651 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1654 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1658 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1661 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1665 fputstrn_filtered (const char *str
, int n
, int quoter
,
1666 struct ui_file
*stream
)
1670 for (i
= 0; i
< n
; i
++)
1671 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1675 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1676 struct ui_file
*stream
)
1680 for (i
= 0; i
< n
; i
++)
1681 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1685 /* Number of lines per page or UINT_MAX if paging is disabled. */
1686 static unsigned int lines_per_page
;
1688 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1689 struct cmd_list_element
*c
, const char *value
)
1691 fprintf_filtered (file
,
1692 _("Number of lines gdb thinks are in a page is %s.\n"),
1696 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1697 static unsigned int chars_per_line
;
1699 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1700 struct cmd_list_element
*c
, const char *value
)
1702 fprintf_filtered (file
,
1703 _("Number of characters gdb thinks "
1704 "are in a line is %s.\n"),
1708 /* Current count of lines printed on this page, chars on this line. */
1709 static unsigned int lines_printed
, chars_printed
;
1711 /* Buffer and start column of buffered text, for doing smarter word-
1712 wrapping. When someone calls wrap_here(), we start buffering output
1713 that comes through fputs_filtered(). If we see a newline, we just
1714 spit it out and forget about the wrap_here(). If we see another
1715 wrap_here(), we spit it out and remember the newer one. If we see
1716 the end of the line, we spit out a newline, the indent, and then
1717 the buffered output. */
1719 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1720 are waiting to be output (they have already been counted in chars_printed).
1721 When wrap_buffer[0] is null, the buffer is empty. */
1722 static char *wrap_buffer
;
1724 /* Pointer in wrap_buffer to the next character to fill. */
1725 static char *wrap_pointer
;
1727 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1729 static char *wrap_indent
;
1731 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1732 is not in effect. */
1733 static int wrap_column
;
1736 /* Inialize the number of lines per page and chars per line. */
1739 init_page_info (void)
1743 lines_per_page
= UINT_MAX
;
1744 chars_per_line
= UINT_MAX
;
1748 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1753 #if defined(__GO32__)
1754 rows
= ScreenRows ();
1755 cols
= ScreenCols ();
1756 lines_per_page
= rows
;
1757 chars_per_line
= cols
;
1759 /* Make sure Readline has initialized its terminal settings. */
1760 rl_reset_terminal (NULL
);
1762 /* Get the screen size from Readline. */
1763 rl_get_screen_size (&rows
, &cols
);
1764 lines_per_page
= rows
;
1765 chars_per_line
= cols
;
1767 /* Readline should have fetched the termcap entry for us. */
1768 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1770 /* The number of lines per page is not mentioned in the
1771 terminal description. This probably means that paging is
1772 not useful (e.g. emacs shell window), so disable paging. */
1773 lines_per_page
= UINT_MAX
;
1776 /* If the output is not a terminal, don't paginate it. */
1777 if (!ui_file_isatty (gdb_stdout
))
1778 lines_per_page
= UINT_MAX
;
1786 /* Helper for make_cleanup_restore_page_info. */
1789 do_restore_page_info_cleanup (void *arg
)
1795 /* Provide cleanup for restoring the terminal size. */
1798 make_cleanup_restore_page_info (void)
1800 struct cleanup
*back_to
;
1802 back_to
= make_cleanup (do_restore_page_info_cleanup
, NULL
);
1803 make_cleanup_restore_uinteger (&lines_per_page
);
1804 make_cleanup_restore_uinteger (&chars_per_line
);
1809 /* Temporarily set BATCH_FLAG and the associated unlimited terminal size.
1810 Provide cleanup for restoring the original state. */
1813 set_batch_flag_and_make_cleanup_restore_page_info (void)
1815 struct cleanup
*back_to
= make_cleanup_restore_page_info ();
1817 make_cleanup_restore_integer (&batch_flag
);
1824 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1827 set_screen_size (void)
1829 int rows
= lines_per_page
;
1830 int cols
= chars_per_line
;
1838 /* Update Readline's idea of the terminal size. */
1839 rl_set_screen_size (rows
, cols
);
1842 /* Reinitialize WRAP_BUFFER according to the current value of
1848 if (chars_per_line
== 0)
1853 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1854 wrap_buffer
[0] = '\0';
1857 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1858 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1862 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1869 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1874 /* Wait, so the user can read what's on the screen. Prompt the user
1875 to continue by pressing RETURN. */
1878 prompt_for_continue (void)
1881 char cont_prompt
[120];
1882 /* Used to add duration we waited for user to respond to
1883 prompt_for_continue_wait_time. */
1884 struct timeval prompt_started
, prompt_ended
, prompt_delta
;
1886 gettimeofday (&prompt_started
, NULL
);
1888 if (annotation_level
> 1)
1889 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1891 strcpy (cont_prompt
,
1892 "---Type <return> to continue, or q <return> to quit---");
1893 if (annotation_level
> 1)
1894 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1896 /* We must do this *before* we call gdb_readline, else it will eventually
1897 call us -- thinking that we're trying to print beyond the end of the
1899 reinitialize_more_filter ();
1903 /* On a real operating system, the user can quit with SIGINT.
1906 'q' is provided on all systems so users don't have to change habits
1907 from system to system, and because telling them what to do in
1908 the prompt is more user-friendly than expecting them to think of
1910 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1911 whereas control-C to gdb_readline will cause the user to get dumped
1913 ignore
= gdb_readline_wrapper (cont_prompt
);
1915 /* Add time spend in this routine to prompt_for_continue_wait_time. */
1916 gettimeofday (&prompt_ended
, NULL
);
1917 timeval_sub (&prompt_delta
, &prompt_ended
, &prompt_started
);
1918 timeval_add (&prompt_for_continue_wait_time
,
1919 &prompt_for_continue_wait_time
, &prompt_delta
);
1921 if (annotation_level
> 1)
1922 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1928 while (*p
== ' ' || *p
== '\t')
1936 /* Now we have to do this again, so that GDB will know that it doesn't
1937 need to save the ---Type <return>--- line at the top of the screen. */
1938 reinitialize_more_filter ();
1940 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1943 /* Reinitialize filter; ie. tell it to reset to original values. */
1946 reinitialize_more_filter (void)
1952 /* Indicate that if the next sequence of characters overflows the line,
1953 a newline should be inserted here rather than when it hits the end.
1954 If INDENT is non-null, it is a string to be printed to indent the
1955 wrapped part on the next line. INDENT must remain accessible until
1956 the next call to wrap_here() or until a newline is printed through
1959 If the line is already overfull, we immediately print a newline and
1960 the indentation, and disable further wrapping.
1962 If we don't know the width of lines, but we know the page height,
1963 we must not wrap words, but should still keep track of newlines
1964 that were explicitly printed.
1966 INDENT should not contain tabs, as that will mess up the char count
1967 on the next line. FIXME.
1969 This routine is guaranteed to force out any output which has been
1970 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1971 used to force out output from the wrap_buffer. */
1974 wrap_here (char *indent
)
1976 /* This should have been allocated, but be paranoid anyway. */
1978 internal_error (__FILE__
, __LINE__
,
1979 _("failed internal consistency check"));
1983 *wrap_pointer
= '\0';
1984 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1986 wrap_pointer
= wrap_buffer
;
1987 wrap_buffer
[0] = '\0';
1988 if (chars_per_line
== UINT_MAX
) /* No line overflow checking. */
1992 else if (chars_printed
>= chars_per_line
)
1994 puts_filtered ("\n");
1996 puts_filtered (indent
);
2001 wrap_column
= chars_printed
;
2005 wrap_indent
= indent
;
2009 /* Print input string to gdb_stdout, filtered, with wrap,
2010 arranging strings in columns of n chars. String can be
2011 right or left justified in the column. Never prints
2012 trailing spaces. String should never be longer than
2013 width. FIXME: this could be useful for the EXAMINE
2014 command, which currently doesn't tabulate very well. */
2017 puts_filtered_tabular (char *string
, int width
, int right
)
2023 gdb_assert (chars_per_line
> 0);
2024 if (chars_per_line
== UINT_MAX
)
2026 fputs_filtered (string
, gdb_stdout
);
2027 fputs_filtered ("\n", gdb_stdout
);
2031 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
2032 fputs_filtered ("\n", gdb_stdout
);
2034 if (width
>= chars_per_line
)
2035 width
= chars_per_line
- 1;
2037 stringlen
= strlen (string
);
2039 if (chars_printed
> 0)
2040 spaces
= width
- (chars_printed
- 1) % width
- 1;
2042 spaces
+= width
- stringlen
;
2044 spacebuf
= alloca (spaces
+ 1);
2045 spacebuf
[spaces
] = '\0';
2047 spacebuf
[spaces
] = ' ';
2049 fputs_filtered (spacebuf
, gdb_stdout
);
2050 fputs_filtered (string
, gdb_stdout
);
2054 /* Ensure that whatever gets printed next, using the filtered output
2055 commands, starts at the beginning of the line. I.e. if there is
2056 any pending output for the current line, flush it and start a new
2057 line. Otherwise do nothing. */
2062 if (chars_printed
> 0)
2064 puts_filtered ("\n");
2069 /* Like fputs but if FILTER is true, pause after every screenful.
2071 Regardless of FILTER can wrap at points other than the final
2072 character of a line.
2074 Unlike fputs, fputs_maybe_filtered does not return a value.
2075 It is OK for LINEBUFFER to be NULL, in which case just don't print
2078 Note that a longjmp to top level may occur in this routine (only if
2079 FILTER is true) (since prompt_for_continue may do so) so this
2080 routine should not be called when cleanups are not in place. */
2083 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2086 const char *lineptr
;
2088 if (linebuffer
== 0)
2091 /* Don't do any filtering if it is disabled. */
2092 if (stream
!= gdb_stdout
2093 || !pagination_enabled
2095 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
)
2096 || top_level_interpreter () == NULL
2097 || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2099 fputs_unfiltered (linebuffer
, stream
);
2103 /* Go through and output each character. Show line extension
2104 when this is necessary; prompt user for new page when this is
2107 lineptr
= linebuffer
;
2110 /* Possible new page. */
2111 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2112 prompt_for_continue ();
2114 while (*lineptr
&& *lineptr
!= '\n')
2116 /* Print a single line. */
2117 if (*lineptr
== '\t')
2120 *wrap_pointer
++ = '\t';
2122 fputc_unfiltered ('\t', stream
);
2123 /* Shifting right by 3 produces the number of tab stops
2124 we have already passed, and then adding one and
2125 shifting left 3 advances to the next tab stop. */
2126 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2132 *wrap_pointer
++ = *lineptr
;
2134 fputc_unfiltered (*lineptr
, stream
);
2139 if (chars_printed
>= chars_per_line
)
2141 unsigned int save_chars
= chars_printed
;
2145 /* If we aren't actually wrapping, don't output newline --
2146 if chars_per_line is right, we probably just overflowed
2147 anyway; if it's wrong, let us keep going. */
2149 fputc_unfiltered ('\n', stream
);
2151 /* Possible new page. */
2152 if (lines_printed
>= lines_per_page
- 1)
2153 prompt_for_continue ();
2155 /* Now output indentation and wrapped string. */
2158 fputs_unfiltered (wrap_indent
, stream
);
2159 *wrap_pointer
= '\0'; /* Null-terminate saved stuff, */
2160 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it. */
2161 /* FIXME, this strlen is what prevents wrap_indent from
2162 containing tabs. However, if we recurse to print it
2163 and count its chars, we risk trouble if wrap_indent is
2164 longer than (the user settable) chars_per_line.
2165 Note also that this can set chars_printed > chars_per_line
2166 if we are printing a long string. */
2167 chars_printed
= strlen (wrap_indent
)
2168 + (save_chars
- wrap_column
);
2169 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2170 wrap_buffer
[0] = '\0';
2171 wrap_column
= 0; /* And disable fancy wrap */
2176 if (*lineptr
== '\n')
2179 wrap_here ((char *) 0); /* Spit out chars, cancel
2182 fputc_unfiltered ('\n', stream
);
2189 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2191 fputs_maybe_filtered (linebuffer
, stream
, 1);
2195 putchar_unfiltered (int c
)
2199 ui_file_write (gdb_stdout
, &buf
, 1);
2203 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2204 May return nonlocally. */
2207 putchar_filtered (int c
)
2209 return fputc_filtered (c
, gdb_stdout
);
2213 fputc_unfiltered (int c
, struct ui_file
*stream
)
2217 ui_file_write (stream
, &buf
, 1);
2222 fputc_filtered (int c
, struct ui_file
*stream
)
2228 fputs_filtered (buf
, stream
);
2232 /* puts_debug is like fputs_unfiltered, except it prints special
2233 characters in printable fashion. */
2236 puts_debug (char *prefix
, char *string
, char *suffix
)
2240 /* Print prefix and suffix after each line. */
2241 static int new_line
= 1;
2242 static int return_p
= 0;
2243 static char *prev_prefix
= "";
2244 static char *prev_suffix
= "";
2246 if (*string
== '\n')
2249 /* If the prefix is changing, print the previous suffix, a new line,
2250 and the new prefix. */
2251 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2253 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2254 fputs_unfiltered ("\n", gdb_stdlog
);
2255 fputs_unfiltered (prefix
, gdb_stdlog
);
2258 /* Print prefix if we printed a newline during the previous call. */
2262 fputs_unfiltered (prefix
, gdb_stdlog
);
2265 prev_prefix
= prefix
;
2266 prev_suffix
= suffix
;
2268 /* Output characters in a printable format. */
2269 while ((ch
= *string
++) != '\0')
2275 fputc_unfiltered (ch
, gdb_stdlog
);
2278 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2282 fputs_unfiltered ("\\\\", gdb_stdlog
);
2285 fputs_unfiltered ("\\b", gdb_stdlog
);
2288 fputs_unfiltered ("\\f", gdb_stdlog
);
2292 fputs_unfiltered ("\\n", gdb_stdlog
);
2295 fputs_unfiltered ("\\r", gdb_stdlog
);
2298 fputs_unfiltered ("\\t", gdb_stdlog
);
2301 fputs_unfiltered ("\\v", gdb_stdlog
);
2305 return_p
= ch
== '\r';
2308 /* Print suffix if we printed a newline. */
2311 fputs_unfiltered (suffix
, gdb_stdlog
);
2312 fputs_unfiltered ("\n", gdb_stdlog
);
2317 /* Print a variable number of ARGS using format FORMAT. If this
2318 information is going to put the amount written (since the last call
2319 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2320 call prompt_for_continue to get the users permision to continue.
2322 Unlike fprintf, this function does not return a value.
2324 We implement three variants, vfprintf (takes a vararg list and stream),
2325 fprintf (takes a stream to write on), and printf (the usual).
2327 Note also that a longjmp to top level may occur in this routine
2328 (since prompt_for_continue may do so) so this routine should not be
2329 called when cleanups are not in place. */
2332 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2333 va_list args
, int filter
)
2336 struct cleanup
*old_cleanups
;
2338 linebuffer
= xstrvprintf (format
, args
);
2339 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2340 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2341 do_cleanups (old_cleanups
);
2346 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2348 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2352 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2355 struct cleanup
*old_cleanups
;
2357 linebuffer
= xstrvprintf (format
, args
);
2358 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2359 if (debug_timestamp
&& stream
== gdb_stdlog
)
2365 gettimeofday (&tm
, NULL
);
2367 len
= strlen (linebuffer
);
2368 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2370 timestamp
= xstrprintf ("%ld:%ld %s%s",
2371 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2373 need_nl
? "\n": "");
2374 make_cleanup (xfree
, timestamp
);
2375 fputs_unfiltered (timestamp
, stream
);
2378 fputs_unfiltered (linebuffer
, stream
);
2379 do_cleanups (old_cleanups
);
2383 vprintf_filtered (const char *format
, va_list args
)
2385 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2389 vprintf_unfiltered (const char *format
, va_list args
)
2391 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2395 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2399 va_start (args
, format
);
2400 vfprintf_filtered (stream
, format
, args
);
2405 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2409 va_start (args
, format
);
2410 vfprintf_unfiltered (stream
, format
, args
);
2414 /* Like fprintf_filtered, but prints its result indented.
2415 Called as fprintfi_filtered (spaces, stream, format, ...); */
2418 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2423 va_start (args
, format
);
2424 print_spaces_filtered (spaces
, stream
);
2426 vfprintf_filtered (stream
, format
, args
);
2432 printf_filtered (const char *format
, ...)
2436 va_start (args
, format
);
2437 vfprintf_filtered (gdb_stdout
, format
, args
);
2443 printf_unfiltered (const char *format
, ...)
2447 va_start (args
, format
);
2448 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2452 /* Like printf_filtered, but prints it's result indented.
2453 Called as printfi_filtered (spaces, format, ...); */
2456 printfi_filtered (int spaces
, const char *format
, ...)
2460 va_start (args
, format
);
2461 print_spaces_filtered (spaces
, gdb_stdout
);
2462 vfprintf_filtered (gdb_stdout
, format
, args
);
2466 /* Easy -- but watch out!
2468 This routine is *not* a replacement for puts()! puts() appends a newline.
2469 This one doesn't, and had better not! */
2472 puts_filtered (const char *string
)
2474 fputs_filtered (string
, gdb_stdout
);
2478 puts_unfiltered (const char *string
)
2480 fputs_unfiltered (string
, gdb_stdout
);
2483 /* Return a pointer to N spaces and a null. The pointer is good
2484 until the next call to here. */
2489 static char *spaces
= 0;
2490 static int max_spaces
= -1;
2496 spaces
= (char *) xmalloc (n
+ 1);
2497 for (t
= spaces
+ n
; t
!= spaces
;)
2503 return spaces
+ max_spaces
- n
;
2506 /* Print N spaces. */
2508 print_spaces_filtered (int n
, struct ui_file
*stream
)
2510 fputs_filtered (n_spaces (n
), stream
);
2513 /* C++/ObjC demangler stuff. */
2515 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2516 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2517 If the name is not mangled, or the language for the name is unknown, or
2518 demangling is off, the name is printed in its "raw" form. */
2521 fprintf_symbol_filtered (struct ui_file
*stream
, const char *name
,
2522 enum language lang
, int arg_mode
)
2528 /* If user wants to see raw output, no problem. */
2531 fputs_filtered (name
, stream
);
2535 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2536 fputs_filtered (demangled
? demangled
: name
, stream
);
2537 if (demangled
!= NULL
)
2545 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2546 differences in whitespace. Returns 0 if they match, non-zero if they
2547 don't (slightly different than strcmp()'s range of return values).
2549 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2550 This "feature" is useful when searching for matching C++ function names
2551 (such as if the user types 'break FOO', where FOO is a mangled C++
2555 strcmp_iw (const char *string1
, const char *string2
)
2557 while ((*string1
!= '\0') && (*string2
!= '\0'))
2559 while (isspace (*string1
))
2563 while (isspace (*string2
))
2567 if (case_sensitivity
== case_sensitive_on
&& *string1
!= *string2
)
2569 if (case_sensitivity
== case_sensitive_off
2570 && (tolower ((unsigned char) *string1
)
2571 != tolower ((unsigned char) *string2
)))
2573 if (*string1
!= '\0')
2579 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2582 /* This is like strcmp except that it ignores whitespace and treats
2583 '(' as the first non-NULL character in terms of ordering. Like
2584 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2585 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2586 according to that ordering.
2588 If a list is sorted according to this function and if you want to
2589 find names in the list that match some fixed NAME according to
2590 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2591 where this function would put NAME.
2593 This function must be neutral to the CASE_SENSITIVITY setting as the user
2594 may choose it during later lookup. Therefore this function always sorts
2595 primarily case-insensitively and secondarily case-sensitively.
2597 Here are some examples of why using strcmp to sort is a bad idea:
2601 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2602 we try to do a search for "foo<char*>", strcmp will locate this
2603 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2604 will start looking at strings beginning with "goo", and will never
2605 see the correct match of "foo<char *>".
2607 Parenthesis example:
2609 In practice, this is less like to be an issue, but I'll give it a
2610 shot. Let's assume that '$' is a legitimate character to occur in
2611 symbols. (Which may well even be the case on some systems.) Then
2612 say that the partial symbol table contains "foo$" and "foo(int)".
2613 strcmp will put them in this order, since '$' < '('. Now, if the
2614 user searches for "foo", then strcmp will sort "foo" before "foo$".
2615 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2616 "foo") is false, so it won't proceed to the actual match of
2617 "foo(int)" with "foo". */
2620 strcmp_iw_ordered (const char *string1
, const char *string2
)
2622 const char *saved_string1
= string1
, *saved_string2
= string2
;
2623 enum case_sensitivity case_pass
= case_sensitive_off
;
2627 /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'.
2628 Provide stub characters if we are already at the end of one of the
2630 char c1
= 'X', c2
= 'X';
2632 while (*string1
!= '\0' && *string2
!= '\0')
2634 while (isspace (*string1
))
2636 while (isspace (*string2
))
2641 case case_sensitive_off
:
2642 c1
= tolower ((unsigned char) *string1
);
2643 c2
= tolower ((unsigned char) *string2
);
2645 case case_sensitive_on
:
2653 if (*string1
!= '\0')
2662 /* Characters are non-equal unless they're both '\0'; we want to
2663 make sure we get the comparison right according to our
2664 comparison in the cases where one of them is '\0' or '('. */
2666 if (*string2
== '\0')
2671 if (*string2
== '\0')
2676 if (*string2
== '\0' || *string2
== '(')
2685 if (case_pass
== case_sensitive_on
)
2688 /* Otherwise the strings were equal in case insensitive way, make
2689 a more fine grained comparison in a case sensitive way. */
2691 case_pass
= case_sensitive_on
;
2692 string1
= saved_string1
;
2693 string2
= saved_string2
;
2697 /* A simple comparison function with opposite semantics to strcmp. */
2700 streq (const char *lhs
, const char *rhs
)
2702 return !strcmp (lhs
, rhs
);
2708 ** Answer whether string_to_compare is a full or partial match to
2709 ** template_string. The partial match must be in sequence starting
2713 subset_compare (char *string_to_compare
, char *template_string
)
2717 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2718 && strlen (string_to_compare
) <= strlen (template_string
))
2721 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2728 pagination_on_command (char *arg
, int from_tty
)
2730 pagination_enabled
= 1;
2734 pagination_off_command (char *arg
, int from_tty
)
2736 pagination_enabled
= 0;
2740 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
2741 struct cmd_list_element
*c
, const char *value
)
2743 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"),
2749 initialize_utils (void)
2751 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2752 Set number of characters gdb thinks are in a line."), _("\
2753 Show number of characters gdb thinks are in a line."), NULL
,
2755 show_chars_per_line
,
2756 &setlist
, &showlist
);
2758 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2759 Set number of lines gdb thinks are in a page."), _("\
2760 Show number of lines gdb thinks are in a page."), NULL
,
2762 show_lines_per_page
,
2763 &setlist
, &showlist
);
2767 add_setshow_boolean_cmd ("pagination", class_support
,
2768 &pagination_enabled
, _("\
2769 Set state of pagination."), _("\
2770 Show state of pagination."), NULL
,
2772 show_pagination_enabled
,
2773 &setlist
, &showlist
);
2777 add_com ("am", class_support
, pagination_on_command
,
2778 _("Enable pagination"));
2779 add_com ("sm", class_support
, pagination_off_command
,
2780 _("Disable pagination"));
2783 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2784 &sevenbit_strings
, _("\
2785 Set printing of 8-bit characters in strings as \\nnn."), _("\
2786 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2788 show_sevenbit_strings
,
2789 &setprintlist
, &showprintlist
);
2791 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
2792 &debug_timestamp
, _("\
2793 Set timestamping of debugging messages."), _("\
2794 Show timestamping of debugging messages."), _("\
2795 When set, debugging messages will be marked with seconds and microseconds."),
2797 show_debug_timestamp
,
2798 &setdebuglist
, &showdebuglist
);
2801 /* Print routines to handle variable size regs, etc. */
2802 /* Temporary storage using circular buffer. */
2808 static char buf
[NUMCELLS
][CELLSIZE
];
2809 static int cell
= 0;
2811 if (++cell
>= NUMCELLS
)
2817 paddress (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
2819 /* Truncate address to the size of a target address, avoiding shifts
2820 larger or equal than the width of a CORE_ADDR. The local
2821 variable ADDR_BIT stops the compiler reporting a shift overflow
2822 when it won't occur. */
2823 /* NOTE: This assumes that the significant address information is
2824 kept in the least significant bits of ADDR - the upper bits were
2825 either zero or sign extended. Should gdbarch_address_to_pointer or
2826 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2828 int addr_bit
= gdbarch_addr_bit (gdbarch
);
2830 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2831 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2832 return hex_string (addr
);
2835 /* This function is described in "defs.h". */
2838 print_core_address (struct gdbarch
*gdbarch
, CORE_ADDR address
)
2840 int addr_bit
= gdbarch_addr_bit (gdbarch
);
2842 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2843 address
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2845 /* FIXME: cagney/2002-05-03: Need local_address_string() function
2846 that returns the language localized string formatted to a width
2847 based on gdbarch_addr_bit. */
2849 return hex_string_custom (address
, 8);
2851 return hex_string_custom (address
, 16);
2854 /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */
2857 core_addr_hash (const void *ap
)
2859 const CORE_ADDR
*addrp
= ap
;
2864 /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */
2867 core_addr_eq (const void *ap
, const void *bp
)
2869 const CORE_ADDR
*addr_ap
= ap
;
2870 const CORE_ADDR
*addr_bp
= bp
;
2872 return *addr_ap
== *addr_bp
;
2876 decimal2str (char *sign
, ULONGEST addr
, int width
)
2878 /* Steal code from valprint.c:print_decimal(). Should this worry
2879 about the real size of addr as the above does? */
2880 unsigned long temp
[3];
2881 char *str
= get_cell ();
2886 temp
[i
] = addr
% (1000 * 1000 * 1000);
2887 addr
/= (1000 * 1000 * 1000);
2891 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2900 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
2903 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
2907 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
2908 temp
[2], temp
[1], temp
[0]);
2911 internal_error (__FILE__
, __LINE__
,
2912 _("failed internal consistency check"));
2919 octal2str (ULONGEST addr
, int width
)
2921 unsigned long temp
[3];
2922 char *str
= get_cell ();
2927 temp
[i
] = addr
% (0100000 * 0100000);
2928 addr
/= (0100000 * 0100000);
2932 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2942 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
2944 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
2947 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2950 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
2951 temp
[2], temp
[1], temp
[0]);
2954 internal_error (__FILE__
, __LINE__
,
2955 _("failed internal consistency check"));
2962 pulongest (ULONGEST u
)
2964 return decimal2str ("", u
, 0);
2968 plongest (LONGEST l
)
2971 return decimal2str ("-", -l
, 0);
2973 return decimal2str ("", l
, 0);
2976 /* Eliminate warning from compiler on 32-bit systems. */
2977 static int thirty_two
= 32;
2980 phex (ULONGEST l
, int sizeof_l
)
2988 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
2989 (unsigned long) (l
>> thirty_two
),
2990 (unsigned long) (l
& 0xffffffff));
2994 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
2998 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
3001 str
= phex (l
, sizeof (l
));
3009 phex_nz (ULONGEST l
, int sizeof_l
)
3017 unsigned long high
= (unsigned long) (l
>> thirty_two
);
3021 xsnprintf (str
, CELLSIZE
, "%lx",
3022 (unsigned long) (l
& 0xffffffff));
3024 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
3025 (unsigned long) (l
& 0xffffffff));
3030 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
3034 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
3037 str
= phex_nz (l
, sizeof (l
));
3044 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
3045 in a static string. Returns a pointer to this string. */
3047 hex_string (LONGEST num
)
3049 char *result
= get_cell ();
3051 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
3055 /* Converts a LONGEST number to a C-format hexadecimal literal and
3056 stores it in a static string. Returns a pointer to this string
3057 that is valid until the next call. The number is padded on the
3058 left with 0s to at least WIDTH characters. */
3060 hex_string_custom (LONGEST num
, int width
)
3062 char *result
= get_cell ();
3063 char *result_end
= result
+ CELLSIZE
- 1;
3064 const char *hex
= phex_nz (num
, sizeof (num
));
3065 int hex_len
= strlen (hex
);
3067 if (hex_len
> width
)
3069 if (width
+ 2 >= CELLSIZE
)
3070 internal_error (__FILE__
, __LINE__
, _("\
3071 hex_string_custom: insufficient space to store result"));
3073 strcpy (result_end
- width
- 2, "0x");
3074 memset (result_end
- width
, '0', width
);
3075 strcpy (result_end
- hex_len
, hex
);
3076 return result_end
- width
- 2;
3079 /* Convert VAL to a numeral in the given radix. For
3080 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
3081 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
3082 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
3083 * to use C format in all cases. If it is false, then 'x'
3084 * and 'o' formats do not include a prefix (0x or leading 0). */
3087 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
3097 result
= hex_string (val
);
3099 result
= hex_string_custom (val
, width
);
3106 if (is_signed
&& val
< 0)
3107 return decimal2str ("-", -val
, width
);
3109 return decimal2str ("", val
, width
);
3113 char *result
= octal2str (val
, width
);
3115 if (use_c_format
|| val
== 0)
3121 internal_error (__FILE__
, __LINE__
,
3122 _("failed internal consistency check"));
3126 /* Convert a CORE_ADDR into a string. */
3128 core_addr_to_string (const CORE_ADDR addr
)
3130 char *str
= get_cell ();
3133 strcat (str
, phex (addr
, sizeof (addr
)));
3138 core_addr_to_string_nz (const CORE_ADDR addr
)
3140 char *str
= get_cell ();
3143 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3147 /* Convert a string back into a CORE_ADDR. */
3149 string_to_core_addr (const char *my_string
)
3153 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3155 /* Assume that it is in hex. */
3158 for (i
= 2; my_string
[i
] != '\0'; i
++)
3160 if (isdigit (my_string
[i
]))
3161 addr
= (my_string
[i
] - '0') + (addr
* 16);
3162 else if (isxdigit (my_string
[i
]))
3163 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3165 error (_("invalid hex \"%s\""), my_string
);
3170 /* Assume that it is in decimal. */
3173 for (i
= 0; my_string
[i
] != '\0'; i
++)
3175 if (isdigit (my_string
[i
]))
3176 addr
= (my_string
[i
] - '0') + (addr
* 10);
3178 error (_("invalid decimal \"%s\""), my_string
);
3186 host_address_to_string (const void *addr
)
3188 char *str
= get_cell ();
3190 xsnprintf (str
, CELLSIZE
, "0x%s", phex_nz ((uintptr_t) addr
, sizeof (addr
)));
3195 gdb_realpath (const char *filename
)
3197 /* Method 1: The system has a compile time upper bound on a filename
3198 path. Use that and realpath() to canonicalize the name. This is
3199 the most common case. Note that, if there isn't a compile time
3200 upper bound, you want to avoid realpath() at all costs. */
3201 #if defined(HAVE_REALPATH)
3203 # if defined (PATH_MAX)
3205 # define USE_REALPATH
3206 # elif defined (MAXPATHLEN)
3207 char buf
[MAXPATHLEN
];
3208 # define USE_REALPATH
3210 # if defined (USE_REALPATH)
3211 const char *rp
= realpath (filename
, buf
);
3215 return xstrdup (rp
);
3218 #endif /* HAVE_REALPATH */
3220 /* Method 2: The host system (i.e., GNU) has the function
3221 canonicalize_file_name() which malloc's a chunk of memory and
3222 returns that, use that. */
3223 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3225 char *rp
= canonicalize_file_name (filename
);
3228 return xstrdup (filename
);
3234 /* FIXME: cagney/2002-11-13:
3236 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3237 to the problems described in method 3, have modified their
3238 realpath() implementation so that it will allocate a buffer when
3239 NULL is passed in. Before this can be used, though, some sort of
3240 configure time test would need to be added. Otherwize the code
3241 will likely core dump. */
3243 /* Method 3: Now we're getting desperate! The system doesn't have a
3244 compile time buffer size and no alternative function. Query the
3245 OS, using pathconf(), for the buffer limit. Care is needed
3246 though, some systems do not limit PATH_MAX (return -1 for
3247 pathconf()) making it impossible to pass a correctly sized buffer
3248 to realpath() (it could always overflow). On those systems, we
3250 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3252 /* Find out the max path size. */
3253 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3257 /* PATH_MAX is bounded. */
3258 char *buf
= alloca (path_max
);
3259 char *rp
= realpath (filename
, buf
);
3261 return xstrdup (rp
? rp
: filename
);
3266 /* The MS Windows method. If we don't have realpath, we assume we
3267 don't have symlinks and just canonicalize to a Windows absolute
3268 path. GetFullPath converts ../ and ./ in relative paths to
3269 absolute paths, filling in current drive if one is not given
3270 or using the current directory of a specified drive (eg, "E:foo").
3271 It also converts all forward slashes to back slashes. */
3272 /* The file system is case-insensitive but case-preserving.
3273 So we do not lowercase the path. Otherwise, we might not
3274 be able to display the original casing in a given path. */
3275 #if defined (_WIN32)
3278 DWORD len
= GetFullPathName (filename
, MAX_PATH
, buf
, NULL
);
3280 if (len
> 0 && len
< MAX_PATH
)
3281 return xstrdup (buf
);
3285 /* This system is a lost cause, just dup the buffer. */
3286 return xstrdup (filename
);
3289 /* Return a copy of FILENAME, with its directory prefix canonicalized
3293 xfullpath (const char *filename
)
3295 const char *base_name
= lbasename (filename
);
3300 /* Extract the basename of filename, and return immediately
3301 a copy of filename if it does not contain any directory prefix. */
3302 if (base_name
== filename
)
3303 return xstrdup (filename
);
3305 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3306 /* Allocate enough space to store the dir_name + plus one extra
3307 character sometimes needed under Windows (see below), and
3308 then the closing \000 character. */
3309 strncpy (dir_name
, filename
, base_name
- filename
);
3310 dir_name
[base_name
- filename
] = '\000';
3312 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3313 /* We need to be careful when filename is of the form 'd:foo', which
3314 is equivalent of d:./foo, which is totally different from d:/foo. */
3315 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3318 dir_name
[3] = '\000';
3322 /* Canonicalize the directory prefix, and build the resulting
3323 filename. If the dirname realpath already contains an ending
3324 directory separator, avoid doubling it. */
3325 real_path
= gdb_realpath (dir_name
);
3326 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3327 result
= concat (real_path
, base_name
, (char *) NULL
);
3329 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *) NULL
);
3336 /* This is the 32-bit CRC function used by the GNU separate debug
3337 facility. An executable may contain a section named
3338 .gnu_debuglink, which holds the name of a separate executable file
3339 containing its debug info, and a checksum of that file's contents,
3340 computed using this function. */
3342 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3344 static const unsigned int crc32_table
[256] = {
3345 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3346 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3347 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3348 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3349 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3350 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3351 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3352 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3353 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3354 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3355 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3356 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3357 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3358 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3359 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3360 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3361 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3362 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3363 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3364 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3365 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3366 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3367 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3368 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3369 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3370 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3371 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3372 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3373 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3374 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3375 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3376 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3377 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3378 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3379 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3380 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3381 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3382 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3383 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3384 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3385 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3386 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3387 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3388 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3389 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3390 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3391 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3392 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3393 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3394 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3395 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3400 crc
= ~crc
& 0xffffffff;
3401 for (end
= buf
+ len
; buf
< end
; ++buf
)
3402 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3403 return ~crc
& 0xffffffff;
3407 align_up (ULONGEST v
, int n
)
3409 /* Check that N is really a power of two. */
3410 gdb_assert (n
&& (n
& (n
-1)) == 0);
3411 return (v
+ n
- 1) & -n
;
3415 align_down (ULONGEST v
, int n
)
3417 /* Check that N is really a power of two. */
3418 gdb_assert (n
&& (n
& (n
-1)) == 0);
3422 /* Allocation function for the libiberty hash table which uses an
3423 obstack. The obstack is passed as DATA. */
3426 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3428 unsigned int total
= size
* count
;
3429 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3431 memset (ptr
, 0, total
);
3435 /* Trivial deallocation function for the libiberty splay tree and hash
3436 table - don't deallocate anything. Rely on later deletion of the
3437 obstack. DATA will be the obstack, although it is not needed
3441 dummy_obstack_deallocate (void *object
, void *data
)
3446 /* The bit offset of the highest byte in a ULONGEST, for overflow
3449 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3451 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3452 where 2 <= BASE <= 36. */
3455 is_digit_in_base (unsigned char digit
, int base
)
3457 if (!isalnum (digit
))
3460 return (isdigit (digit
) && digit
< base
+ '0');
3462 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3466 digit_to_int (unsigned char c
)
3471 return tolower (c
) - 'a' + 10;
3474 /* As for strtoul, but for ULONGEST results. */
3477 strtoulst (const char *num
, const char **trailer
, int base
)
3479 unsigned int high_part
;
3484 /* Skip leading whitespace. */
3485 while (isspace (num
[i
]))
3488 /* Handle prefixes. */
3491 else if (num
[i
] == '-')
3497 if (base
== 0 || base
== 16)
3499 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3507 if (base
== 0 && num
[i
] == '0')
3513 if (base
< 2 || base
> 36)
3519 result
= high_part
= 0;
3520 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3522 result
= result
* base
+ digit_to_int (num
[i
]);
3523 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3524 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3525 if (high_part
> 0xff)
3528 result
= ~ (ULONGEST
) 0;
3535 if (trailer
!= NULL
)
3538 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3545 /* Simple, portable version of dirname that does not modify its
3549 ldirname (const char *filename
)
3551 const char *base
= lbasename (filename
);
3554 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3557 if (base
== filename
)
3560 dirname
= xmalloc (base
- filename
+ 2);
3561 memcpy (dirname
, filename
, base
- filename
);
3563 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3564 create "d:./bar" later instead of the (different) "d:/bar". */
3565 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3566 && !IS_DIR_SEPARATOR (filename
[0]))
3567 dirname
[base
++ - filename
] = '.';
3569 dirname
[base
- filename
] = '\0';
3573 /* Call libiberty's buildargv, and return the result.
3574 If buildargv fails due to out-of-memory, call nomem.
3575 Therefore, the returned value is guaranteed to be non-NULL,
3576 unless the parameter itself is NULL. */
3579 gdb_buildargv (const char *s
)
3581 char **argv
= buildargv (s
);
3583 if (s
!= NULL
&& argv
== NULL
)
3589 compare_positive_ints (const void *ap
, const void *bp
)
3591 /* Because we know we're comparing two ints which are positive,
3592 there's no danger of overflow here. */
3593 return * (int *) ap
- * (int *) bp
;
3596 /* String compare function for qsort. */
3599 compare_strings (const void *arg1
, const void *arg2
)
3601 const char **s1
= (const char **) arg1
;
3602 const char **s2
= (const char **) arg2
;
3604 return strcmp (*s1
, *s2
);
3607 #define AMBIGUOUS_MESS1 ".\nMatching formats:"
3608 #define AMBIGUOUS_MESS2 \
3609 ".\nUse \"set gnutarget format-name\" to specify the format."
3612 gdb_bfd_errmsg (bfd_error_type error_tag
, char **matching
)
3618 /* Check if errmsg just need simple return. */
3619 if (error_tag
!= bfd_error_file_ambiguously_recognized
|| matching
== NULL
)
3620 return bfd_errmsg (error_tag
);
3622 ret_len
= strlen (bfd_errmsg (error_tag
)) + strlen (AMBIGUOUS_MESS1
)
3623 + strlen (AMBIGUOUS_MESS2
);
3624 for (p
= matching
; *p
; p
++)
3625 ret_len
+= strlen (*p
) + 1;
3626 ret
= xmalloc (ret_len
+ 1);
3628 make_cleanup (xfree
, ret
);
3630 strcpy (retp
, bfd_errmsg (error_tag
));
3631 retp
+= strlen (retp
);
3633 strcpy (retp
, AMBIGUOUS_MESS1
);
3634 retp
+= strlen (retp
);
3636 for (p
= matching
; *p
; p
++)
3638 sprintf (retp
, " %s", *p
);
3639 retp
+= strlen (retp
);
3643 strcpy (retp
, AMBIGUOUS_MESS2
);
3648 /* Return ARGS parsed as a valid pid, or throw an error. */
3651 parse_pid_to_attach (char *args
)
3657 error_no_arg (_("process-id to attach"));
3660 pid
= strtoul (args
, &dummy
, 0);
3661 /* Some targets don't set errno on errors, grrr! */
3662 if ((pid
== 0 && dummy
== args
) || dummy
!= &args
[strlen (args
)])
3663 error (_("Illegal process-id: %s."), args
);
3668 /* Helper for make_bpstat_clear_actions_cleanup. */
3671 do_bpstat_clear_actions_cleanup (void *unused
)
3673 bpstat_clear_actions ();
3676 /* Call bpstat_clear_actions for the case an exception is throw. You should
3677 discard_cleanups if no exception is caught. */
3680 make_bpstat_clear_actions_cleanup (void)
3682 return make_cleanup (do_bpstat_clear_actions_cleanup
, NULL
);
3685 /* Check for GCC >= 4.x according to the symtab->producer string. Return minor
3686 version (x) of 4.x in such case. If it is not GCC or it is GCC older than
3687 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */
3690 producer_is_gcc_ge_4 (const char *producer
)
3695 if (producer
== NULL
)
3697 /* For unknown compilers expect their behavior is not compliant. For GCC
3698 this case can also happen for -gdwarf-4 type units supported since
3704 /* Skip any identifier after "GNU " - such as "C++" or "Java". */
3706 if (strncmp (producer
, "GNU ", strlen ("GNU ")) != 0)
3708 /* For non-GCC compilers expect their behavior is not compliant. */
3712 cs
= &producer
[strlen ("GNU ")];
3713 while (*cs
&& !isdigit (*cs
))
3715 if (sscanf (cs
, "%d.%d", &major
, &minor
) != 2)
3717 /* Not recognized as GCC. */
3729 /* Helper for make_cleanup_free_char_ptr_vec. */
3732 do_free_char_ptr_vec (void *arg
)
3734 VEC (char_ptr
) *char_ptr_vec
= arg
;
3736 free_char_ptr_vec (char_ptr_vec
);
3739 /* Make cleanup handler calling xfree for each element of CHAR_PTR_VEC and
3740 final VEC_free for CHAR_PTR_VEC itself.
3742 You must not modify CHAR_PTR_VEC after this cleanup registration as the
3743 CHAR_PTR_VEC base address may change on its updates. Contrary to VEC_free
3744 this function does not (cannot) clear the pointer. */
3747 make_cleanup_free_char_ptr_vec (VEC (char_ptr
) *char_ptr_vec
)
3749 return make_cleanup (do_free_char_ptr_vec
, char_ptr_vec
);
3752 /* Substitute all occurences of string FROM by string TO in *STRINGP. *STRINGP
3753 must come from xrealloc-compatible allocator and it may be updated. FROM
3754 needs to be delimited by IS_DIR_SEPARATOR or DIRNAME_SEPARATOR (or be
3755 located at the start or end of *STRINGP. */
3758 substitute_path_component (char **stringp
, const char *from
, const char *to
)
3760 char *string
= *stringp
, *s
;
3761 const size_t from_len
= strlen (from
);
3762 const size_t to_len
= strlen (to
);
3766 s
= strstr (s
, from
);
3770 if ((s
== string
|| IS_DIR_SEPARATOR (s
[-1])
3771 || s
[-1] == DIRNAME_SEPARATOR
)
3772 && (s
[from_len
] == '\0' || IS_DIR_SEPARATOR (s
[from_len
])
3773 || s
[from_len
] == DIRNAME_SEPARATOR
))
3777 string_new
= xrealloc (string
, (strlen (string
) + to_len
+ 1));
3779 /* Relocate the current S pointer. */
3780 s
= s
- string
+ string_new
;
3781 string
= string_new
;
3783 /* Replace from by to. */
3784 memmove (&s
[to_len
], &s
[from_len
], strlen (&s
[from_len
]) + 1);
3785 memcpy (s
, to
, to_len
);
3800 /* SIGALRM handler for waitpid_with_timeout. */
3803 sigalrm_handler (int signo
)
3805 /* Nothing to do. */
3810 /* Wrapper to wait for child PID to die with TIMEOUT.
3811 TIMEOUT is the time to stop waiting in seconds.
3812 If TIMEOUT is zero, pass WNOHANG to waitpid.
3813 Returns PID if it was successfully waited for, otherwise -1.
3815 Timeouts are currently implemented with alarm and SIGALRM.
3816 If the host does not support them, this waits "forever".
3817 It would be odd though for a host to have waitpid and not SIGALRM. */
3820 wait_to_die_with_timeout (pid_t pid
, int *status
, int timeout
)
3822 pid_t waitpid_result
;
3824 gdb_assert (pid
> 0);
3825 gdb_assert (timeout
>= 0);
3830 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
3831 struct sigaction sa
, old_sa
;
3833 sa
.sa_handler
= sigalrm_handler
;
3834 sigemptyset (&sa
.sa_mask
);
3836 sigaction (SIGALRM
, &sa
, &old_sa
);
3840 ofunc
= (void (*)()) signal (SIGALRM
, sigalrm_handler
);
3846 waitpid_result
= waitpid (pid
, status
, 0);
3850 #if defined (HAVE_SIGACTION) && defined (SA_RESTART)
3851 sigaction (SIGALRM
, &old_sa
, NULL
);
3853 signal (SIGALRM
, ofunc
);
3858 waitpid_result
= waitpid (pid
, status
, WNOHANG
);
3860 if (waitpid_result
== pid
)
3866 #endif /* HAVE_WAITPID */
3868 /* Provide fnmatch compatible function for FNM_FILE_NAME matching of host files.
3869 Both FNM_FILE_NAME and FNM_NOESCAPE must be set in FLAGS.
3871 It handles correctly HAVE_DOS_BASED_FILE_SYSTEM and
3872 HAVE_CASE_INSENSITIVE_FILE_SYSTEM. */
3875 gdb_filename_fnmatch (const char *pattern
, const char *string
, int flags
)
3877 gdb_assert ((flags
& FNM_FILE_NAME
) != 0);
3879 /* It is unclear how '\' escaping vs. directory separator should coexist. */
3880 gdb_assert ((flags
& FNM_NOESCAPE
) != 0);
3882 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3884 char *pattern_slash
, *string_slash
;
3886 /* Replace '\' by '/' in both strings. */
3888 pattern_slash
= alloca (strlen (pattern
) + 1);
3889 strcpy (pattern_slash
, pattern
);
3890 pattern
= pattern_slash
;
3891 for (; *pattern_slash
!= 0; pattern_slash
++)
3892 if (IS_DIR_SEPARATOR (*pattern_slash
))
3893 *pattern_slash
= '/';
3895 string_slash
= alloca (strlen (string
) + 1);
3896 strcpy (string_slash
, string
);
3897 string
= string_slash
;
3898 for (; *string_slash
!= 0; string_slash
++)
3899 if (IS_DIR_SEPARATOR (*string_slash
))
3900 *string_slash
= '/';
3902 #endif /* HAVE_DOS_BASED_FILE_SYSTEM */
3904 #ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
3905 flags
|= FNM_CASEFOLD
;
3906 #endif /* HAVE_CASE_INSENSITIVE_FILE_SYSTEM */
3908 return fnmatch (pattern
, string
, flags
);
3911 /* Provide a prototype to silence -Wmissing-prototypes. */
3912 extern initialize_file_ftype _initialize_utils
;
3915 _initialize_utils (void)
3917 add_internal_problem_command (&internal_error_problem
);
3918 add_internal_problem_command (&internal_warning_problem
);