1 /* General utility routines for GDB, the GNU debugger.
2 Copyright (C) 1986, 1989, 1990, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
6 GDB is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 1, or (at your option)
11 GDB is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GDB; see the file COPYING. If not, write to
18 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 #include <sys/ioctl.h>
22 #include <sys/param.h>
35 extern volatile void return_to_top_level ();
36 extern volatile void exit ();
37 extern char *gdb_readline ();
38 extern char *getenv();
39 extern char *malloc();
40 extern char *realloc();
42 /* If this definition isn't overridden by the header files, assume
43 that isatty and fileno exist on this system. */
45 #define ISATTY(FP) (isatty (fileno (FP)))
48 #ifdef MISSING_VPRINTF
50 #undef MISSING_VPRINTF
51 #else /* !__GNU_LIBRARY */
54 #define vfprintf(file, format, ap) _doprnt (format, ap, file)
58 /* Can't #define it since printcmd.c needs it */
61 char *format
; void *ap
;
63 vfprintf (stdout
, format
, ap
);
67 #endif /* GNU_LIBRARY */
68 #endif /* MISSING_VPRINTF */
73 /* Chain of cleanup actions established with make_cleanup,
74 to be executed if an error happens. */
76 static struct cleanup
*cleanup_chain
;
78 /* Nonzero means a quit has been requested. */
82 /* Nonzero means quit immediately if Control-C is typed now,
83 rather than waiting until QUIT is executed. */
87 /* Nonzero means that encoded C++ names should be printed out in their
88 C++ form rather than raw. */
92 /* Nonzero means that encoded C++ names should be printed out in their
93 C++ form even in assembler language displays. If this is set, but
94 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
98 /* Nonzero means that strings with character values >0x7F should be printed
99 as octal escapes. Zero means just print the value (e.g. it's an
100 international character, and the terminal or window can cope.) */
102 int sevenbit_strings
= 0;
104 /* Add a new cleanup to the cleanup_chain,
105 and return the previous chain pointer
106 to be passed later to do_cleanups or discard_cleanups.
107 Args are FUNCTION to clean up with, and ARG to pass to it. */
110 make_cleanup (function
, arg
)
114 register struct cleanup
*new
115 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
116 register struct cleanup
*old_chain
= cleanup_chain
;
118 new->next
= cleanup_chain
;
119 new->function
= function
;
126 /* Discard cleanups and do the actions they describe
127 until we get back to the point OLD_CHAIN in the cleanup_chain. */
130 do_cleanups (old_chain
)
131 register struct cleanup
*old_chain
;
133 register struct cleanup
*ptr
;
134 while ((ptr
= cleanup_chain
) != old_chain
)
136 (*ptr
->function
) (ptr
->arg
);
137 cleanup_chain
= ptr
->next
;
142 /* Discard cleanups, not doing the actions they describe,
143 until we get back to the point OLD_CHAIN in the cleanup_chain. */
146 discard_cleanups (old_chain
)
147 register struct cleanup
*old_chain
;
149 register struct cleanup
*ptr
;
150 while ((ptr
= cleanup_chain
) != old_chain
)
152 cleanup_chain
= ptr
->next
;
157 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
161 struct cleanup
*old_chain
= cleanup_chain
;
167 /* Restore the cleanup chain from a previously saved chain. */
169 restore_cleanups (chain
)
170 struct cleanup
*chain
;
172 cleanup_chain
= chain
;
175 /* This function is useful for cleanups.
179 old_chain = make_cleanup (free_current_contents, &foo);
181 to arrange to free the object thus allocated. */
184 free_current_contents (location
)
190 /* Print an error message and return to command level.
191 The first argument STRING is the error message, used as a fprintf string,
192 and the remaining args are passed as arguments to it. */
203 target_terminal_ours ();
205 string
= va_arg (args
, char *);
206 vfprintf (stderr
, string
, args
);
207 fprintf (stderr
, "\n");
209 return_to_top_level ();
212 /* Print an error message and exit reporting failure.
213 This is for a error that we cannot continue from.
214 The arguments are printed a la printf. */
225 string
= va_arg (args
, char *);
226 fprintf (stderr
, "gdb: ");
227 vfprintf (stderr
, string
, args
);
228 fprintf (stderr
, "\n");
233 /* Print an error message and exit, dumping core.
234 The arguments are printed a la printf (). */
237 fatal_dump_core (va_alist
)
244 string
= va_arg (args
, char *);
245 /* "internal error" is always correct, since GDB should never dump
246 core, no matter what the input. */
247 fprintf (stderr
, "gdb internal error: ");
248 vfprintf (stderr
, string
, args
);
249 fprintf (stderr
, "\n");
252 signal (SIGQUIT
, SIG_DFL
);
253 kill (getpid (), SIGQUIT
);
254 /* We should never get here, but just in case... */
258 /* Memory management stuff (malloc friends). */
260 #if defined (NO_MALLOC_CHECK)
264 #else /* Have mcheck(). */
268 fatal_dump_core ("Memory corruption");
274 mcheck (malloc_botch
);
276 #endif /* Have mcheck(). */
278 /* Like malloc but get error if no storage available. */
290 /* At least one place (dbxread.c:condense_misc_bunches where misc_count == 0)
291 GDB wants to allocate zero bytes. */
295 val
= (char *) malloc (size
);
297 fatal ("virtual memory exhausted.", 0);
301 /* Like realloc but get error if no storage available. */
312 register char *val
= (char *) realloc (ptr
, size
);
314 fatal ("virtual memory exhausted.", 0);
318 /* Print the system error message for errno, and also mention STRING
319 as the file name for which the error was encountered.
320 Then return to command level. */
323 perror_with_name (string
)
327 extern char *sys_errlist
[];
331 if (errno
< sys_nerr
)
332 err
= sys_errlist
[errno
];
334 err
= "unknown error";
336 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
337 strcpy (combined
, string
);
338 strcat (combined
, ": ");
339 strcat (combined
, err
);
341 /* I understand setting these is a matter of taste. Still, some people
342 may clear errno but not know about bfd_error. Doing this here is not
344 bfd_error
= no_error
;
347 error ("%s.", combined
);
350 /* Print the system error message for ERRCODE, and also mention STRING
351 as the file name for which the error was encountered. */
354 print_sys_errmsg (string
, errcode
)
359 extern char *sys_errlist
[];
363 if (errcode
< sys_nerr
)
364 err
= sys_errlist
[errcode
];
366 err
= "unknown error";
368 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
369 strcpy (combined
, string
);
370 strcat (combined
, ": ");
371 strcat (combined
, err
);
373 printf ("%s.\n", combined
);
376 /* Control C eventually causes this to be called, at a convenient time. */
381 target_terminal_ours ();
383 ioctl (fileno (stdout
), TCFLSH
, 1);
384 #else /* not HAVE_TERMIO */
385 ioctl (fileno (stdout
), TIOCFLUSH
, 0);
386 #endif /* not HAVE_TERMIO */
390 error ("Quit (expect signal %d when inferior is resumed)", SIGINT
);
391 #endif /* TIOCGPGRP */
394 /* Control C comes here */
402 /* Restore the signal handler. */
403 signal (SIGINT
, request_quit
);
410 /* My replacement for the read system call.
411 Used like `read' but keeps going if `read' returns too soon. */
414 myread (desc
, addr
, len
)
424 val
= read (desc
, addr
, len
);
435 /* Make a copy of the string at PTR with SIZE characters
436 (and add a null character at the end in the copy).
437 Uses malloc to get the space. Returns the address of the copy. */
440 savestring (ptr
, size
)
444 register char *p
= (char *) xmalloc (size
+ 1);
445 bcopy (ptr
, p
, size
);
454 return savestring (ptr
, strlen (ptr
));
461 register int len
= strlen (s1
) + strlen (s2
) + strlen (s3
) + 1;
462 register char *val
= (char *) xmalloc (len
);
470 print_spaces (n
, file
)
478 /* Ask user a y-or-n question and return 1 iff answer is yes.
479 Takes three args which are given to printf to print the question.
480 The first, a control string, should end in "? ".
481 It should not say how to answer, because we do that. */
493 /* Automatically answer "yes" if input is not from a terminal. */
494 if (!input_from_terminal_p ())
500 ctlstr
= va_arg (args
, char *);
501 vfprintf (stdout
, ctlstr
, args
);
503 printf ("(y or n) ");
505 answer
= fgetc (stdin
);
506 clearerr (stdin
); /* in case of C-d */
507 if (answer
== EOF
) /* C-d */
509 if (answer
!= '\n') /* Eat rest of input line, to EOF or newline */
512 ans2
= fgetc (stdin
);
515 while (ans2
!= EOF
&& ans2
!= '\n');
522 printf ("Please answer y or n.\n");
526 /* Parse a C escape sequence. STRING_PTR points to a variable
527 containing a pointer to the string to parse. That pointer
528 should point to the character after the \. That pointer
529 is updated past the characters we use. The value of the
530 escape sequence is returned.
532 A negative value means the sequence \ newline was seen,
533 which is supposed to be equivalent to nothing at all.
535 If \ is followed by a null character, we return a negative
536 value and leave the string pointer pointing at the null character.
538 If \ is followed by 000, we return 0 and leave the string pointer
539 after the zeros. A value of 0 does not mean end of string. */
542 parse_escape (string_ptr
)
545 register int c
= *(*string_ptr
)++;
570 c
= *(*string_ptr
)++;
572 c
= parse_escape (string_ptr
);
575 return (c
& 0200) | (c
& 037);
586 register int i
= c
- '0';
587 register int count
= 0;
590 if ((c
= *(*string_ptr
)++) >= '0' && c
<= '7')
608 /* Print the character CH on STREAM as part of the contents
609 of a literal string whose delimiter is QUOTER. */
612 printchar (ch
, stream
, quoter
)
619 if (c
< 040 || (sevenbit_strings
&& c
>= 0177))
623 fputs_filtered ("\\n", stream
);
626 fputs_filtered ("\\b", stream
);
629 fputs_filtered ("\\t", stream
);
632 fputs_filtered ("\\f", stream
);
635 fputs_filtered ("\\r", stream
);
638 fputs_filtered ("\\e", stream
);
641 fputs_filtered ("\\a", stream
);
644 fprintf_filtered (stream
, "\\%.3o", (unsigned int) c
);
649 if (c
== '\\' || c
== quoter
)
650 fputs_filtered ("\\", stream
);
651 fprintf_filtered (stream
, "%c", c
);
655 /* Number of lines per page or UINT_MAX if paging is disabled. */
656 static unsigned int lines_per_page
;
657 /* Number of chars per line or UNIT_MAX is line folding is disabled. */
658 static unsigned int chars_per_line
;
659 /* Current count of lines printed on this page, chars on this line. */
660 static unsigned int lines_printed
, chars_printed
;
662 /* Buffer and start column of buffered text, for doing smarter word-
663 wrapping. When someone calls wrap_here(), we start buffering output
664 that comes through fputs_filtered(). If we see a newline, we just
665 spit it out and forget about the wrap_here(). If we see another
666 wrap_here(), we spit it out and remember the newer one. If we see
667 the end of the line, we spit out a newline, the indent, and then
670 wrap_column is the column number on the screen where wrap_buffer begins.
671 When wrap_column is zero, wrapping is not in effect.
672 wrap_buffer is malloc'd with chars_per_line+2 bytes.
673 When wrap_buffer[0] is null, the buffer is empty.
674 wrap_pointer points into it at the next character to fill.
675 wrap_indent is the string that should be used as indentation if the
678 static char *wrap_buffer
, *wrap_pointer
, *wrap_indent
;
679 static int wrap_column
;
681 /* Get the number of lines to print with commands like "list".
682 This is based on guessing how many long (i.e. more than chars_per_line
683 characters) lines there will be. To be completely correct, "list"
684 and friends should be rewritten to count characters and see where
685 things are wrapping, but that would be a fair amount of work. */
689 /* RMS didn't like the following algorithm. Let's set it back to
690 10 and see if anyone else complains. */
691 /* return lines_per_page == UINT_MAX ? 10 : lines_per_page / 2; */
696 set_width_command (args
, from_tty
, c
)
699 struct cmd_list_element
*c
;
703 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
704 wrap_buffer
[0] = '\0';
707 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
708 wrap_pointer
= wrap_buffer
; /* Start it at the beginning */
712 prompt_for_continue ()
715 gdb_readline ("---Type <return> to continue---", 0);
716 chars_printed
= lines_printed
= 0;
720 /* Reinitialize filter; ie. tell it to reset to original values. */
723 reinitialize_more_filter ()
729 /* Indicate that if the next sequence of characters overflows the line,
730 a newline should be inserted here rather than when it hits the end.
731 If INDENT is nonzero, it is a string to be printed to indent the
732 wrapped part on the next line. INDENT must remain accessible until
733 the next call to wrap_here() or until a newline is printed through
736 If the line is already overfull, we immediately print a newline and
737 the indentation, and disable further wrapping.
739 INDENT should not contain tabs, as that
740 will mess up the char count on the next line. FIXME. */
748 *wrap_pointer
= '\0';
749 fputs (wrap_buffer
, stdout
);
751 wrap_pointer
= wrap_buffer
;
752 wrap_buffer
[0] = '\0';
753 if (chars_printed
>= chars_per_line
)
755 puts_filtered ("\n");
756 puts_filtered (indent
);
761 wrap_column
= chars_printed
;
762 wrap_indent
= indent
;
766 /* Like fputs but pause after every screenful, and can wrap at points
767 other than the final character of a line.
768 Unlike fputs, fputs_filtered does not return a value.
769 It is OK for LINEBUFFER to be NULL, in which case just don't print
772 Note that a longjmp to top level may occur in this routine
773 (since prompt_for_continue may do so) so this routine should not be
774 called when cleanups are not in place. */
777 fputs_filtered (linebuffer
, stream
)
786 /* Don't do any filtering if it is disabled. */
788 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
790 fputs (linebuffer
, stream
);
794 /* Go through and output each character. Show line extension
795 when this is necessary; prompt user for new page when this is
798 lineptr
= linebuffer
;
801 /* Possible new page. */
802 if (lines_printed
>= lines_per_page
- 1)
803 prompt_for_continue ();
805 while (*lineptr
&& *lineptr
!= '\n')
807 /* Print a single line. */
808 if (*lineptr
== '\t')
811 *wrap_pointer
++ = '\t';
814 /* Shifting right by 3 produces the number of tab stops
815 we have already passed, and then adding one and
816 shifting left 3 advances to the next tab stop. */
817 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
823 *wrap_pointer
++ = *lineptr
;
825 putc (*lineptr
, stream
);
830 if (chars_printed
>= chars_per_line
)
832 unsigned int save_chars
= chars_printed
;
836 /* If we aren't actually wrapping, don't output newline --
837 if chars_per_line is right, we probably just overflowed
838 anyway; if it's wrong, let us keep going. */
842 /* Possible new page. */
843 if (lines_printed
>= lines_per_page
- 1)
844 prompt_for_continue ();
846 /* Now output indentation and wrapped string */
850 fputs (wrap_indent
, stream
);
851 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
852 fputs (wrap_buffer
, stream
); /* and eject it */
853 /* FIXME, this strlen is what prevents wrap_indent from
854 containing tabs. However, if we recurse to print it
855 and count its chars, we risk trouble if wrap_indent is
856 longer than (the user settable) chars_per_line.
857 Note also that this can set chars_printed > chars_per_line
858 if we are printing a long string. */
859 chars_printed
= strlen (wrap_indent
)
860 + (save_chars
- wrap_column
);
861 wrap_pointer
= wrap_buffer
; /* Reset buffer */
862 wrap_buffer
[0] = '\0';
863 wrap_column
= 0; /* And disable fancy wrap */
868 if (*lineptr
== '\n')
871 wrap_here (""); /* Spit out chars, cancel further wraps */
880 /* fputs_demangled is a variant of fputs_filtered that
881 demangles g++ names.*/
884 fputs_demangled (linebuffer
, stream
, arg_mode
)
890 extern char *cplus_demangle (const char *, int);
892 extern char *cplus_demangle ();
894 #define SYMBOL_MAX 1024
896 #define SYMBOL_CHAR(c) (isascii(c) && (isalnum(c) || (c) == '_' || (c) == '$'))
898 char buf
[SYMBOL_MAX
+1];
899 # define SLOP 5 /* How much room to leave in buf */
902 if (linebuffer
== NULL
)
905 /* If user wants to see raw output, no problem. */
907 fputs_filtered (linebuffer
, stream
);
912 while ( *p
!= (char) 0 ) {
915 /* collect non-interesting characters into buf */
916 while ( *p
!= (char) 0 && !SYMBOL_CHAR(*p
) && i
< (int)sizeof(buf
)-SLOP
) {
921 /* output the non-interesting characters without demangling */
923 fputs_filtered(buf
, stream
);
924 i
= 0; /* reset buf */
927 /* and now the interesting characters */
928 while (i
< SYMBOL_MAX
931 && i
< (int)sizeof(buf
) - SLOP
) {
939 if ( (result
= cplus_demangle(buf
, arg_mode
)) != NULL
) {
940 fputs_filtered(result
, stream
);
944 fputs_filtered(buf
, stream
);
950 /* Print a variable number of ARGS using format FORMAT. If this
951 information is going to put the amount written (since the last call
952 to INITIALIZE_MORE_FILTER or the last page break) over the page size,
953 print out a pause message and do a gdb_readline to get the users
954 permision to continue.
956 Unlike fprintf, this function does not return a value.
958 We implement three variants, vfprintf (takes a vararg list and stream),
959 fprintf (takes a stream to write on), and printf (the usual).
961 Note that this routine has a restriction that the length of the
962 final output line must be less than 255 characters *or* it must be
963 less than twice the size of the format string. This is a very
964 arbitrary restriction, but it is an internal restriction, so I'll
965 put it in. This means that the %s format specifier is almost
966 useless; unless the caller can GUARANTEE that the string is short
967 enough, fputs_filtered should be used instead.
969 Note also that a longjmp to top level may occur in this routine
970 (since prompt_for_continue may do so) so this routine should not be
971 called when cleanups are not in place. */
973 #if !defined(MISSING_VPRINTF) || defined (vsprintf)
976 vfprintf_filtered (stream
, format
, args
)
979 void fprintf_filtered (stream
, format
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
)
984 static char *linebuffer
= (char *) 0;
985 static int line_size
;
988 format_length
= strlen (format
);
990 /* Allocated linebuffer for the first time. */
993 linebuffer
= (char *) xmalloc (255);
997 /* Reallocate buffer to a larger size if this is necessary. */
998 if (format_length
* 2 > line_size
)
1000 line_size
= format_length
* 2;
1002 /* You don't have to copy. */
1004 linebuffer
= (char *) xmalloc (line_size
);
1008 /* This won't blow up if the restrictions described above are
1010 #if !defined(MISSING_VPRINTF) || defined (vsprintf)
1011 (void) vsprintf (linebuffer
, format
, args
);
1013 (void) sprintf (linebuffer
, format
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
1016 fputs_filtered (linebuffer
, stream
);
1019 #if !defined(MISSING_VPRINTF) || defined (vsprintf)
1022 fprintf_filtered (va_alist
)
1030 stream
= va_arg (args
, FILE *);
1031 format
= va_arg (args
, char *);
1033 /* This won't blow up if the restrictions described above are
1035 (void) vfprintf_filtered (stream
, format
, args
);
1041 printf_filtered (va_alist
)
1048 format
= va_arg (args
, char *);
1050 (void) vfprintf_filtered (stdout
, format
, args
);
1055 printf_filtered (format
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
)
1057 int arg1
, arg2
, arg3
, arg4
, arg5
, arg6
;
1059 fprintf_filtered (stdout
, format
, arg1
, arg2
, arg3
, arg4
, arg5
, arg6
);
1066 puts_filtered (string
)
1069 fputs_filtered (string
, stdout
);
1072 /* Return a pointer to N spaces and a null. The pointer is good
1073 until the next call to here. */
1079 static char *spaces
;
1080 static int max_spaces
;
1086 spaces
= malloc (n
+1);
1087 for (t
= spaces
+n
; t
!= spaces
;)
1093 return spaces
+ max_spaces
- n
;
1096 /* Print N spaces. */
1098 print_spaces_filtered (n
, stream
)
1102 fputs_filtered (n_spaces (n
), stream
);
1105 /* C++ demangler stuff. */
1106 char *cplus_demangle ();
1108 /* Print NAME on STREAM, demangling if necessary. */
1110 fprint_symbol (stream
, name
)
1115 if ((!demangle
) || NULL
== (demangled
= cplus_demangle (name
, 1)))
1116 fputs_filtered (name
, stream
);
1119 fputs_filtered (demangled
, stream
);
1124 #if !defined (USG_UTILS)
1125 #define USG_UTILS defined (USG)
1129 bcopy (from
, to
, count
)
1132 memcpy (to
, from
, count
);
1135 bcmp (from
, to
, count
)
1137 return (memcmp (to
, from
, count
));
1150 getcwd (buf
, MAXPATHLEN
);
1158 return strchr (s
, c
);
1166 return strrchr (s
, c
);
1168 #endif /* USG_UTILS. */
1170 #if !defined (QUEUE_MISSING)
1171 #define QUEUE_MISSING defined (USG)
1175 /* Queue routines */
1182 insque (item
, after
)
1184 struct queue
*after
;
1186 item
->forw
= after
->forw
;
1187 after
->forw
->back
= item
;
1196 item
->forw
->back
= item
->back
;
1197 item
->back
->forw
= item
->forw
;
1199 #endif /* QUEUE_MISSING */
1201 /* Simple implementation of strstr, since some implementations lack it. */
1204 const char *in
, *find
;
1206 register char *p
= in
- 1;
1208 while (0 != (p
= strchr (p
+1, *find
))) {
1209 if (strcmp (p
, find
))
1216 _initialize_utils ()
1218 struct cmd_list_element
*c
;
1220 c
= add_set_cmd ("width", class_support
, var_uinteger
,
1221 (char *)&chars_per_line
,
1222 "Set number of characters gdb thinks are in a line.",
1224 add_show_from_set (c
, &showlist
);
1225 c
->function
= set_width_command
;
1228 (add_set_cmd ("height", class_support
,
1229 var_uinteger
, (char *)&lines_per_page
,
1230 "Set number of lines gdb thinks are in a page.", &setlist
),
1233 /* These defaults will be used if we are unable to get the correct
1234 values from termcap. */
1235 lines_per_page
= 24;
1236 chars_per_line
= 80;
1237 /* Initialize the screen height and width from termcap. */
1239 char *termtype
= getenv ("TERM");
1241 /* Positive means success, nonpositive means failure. */
1244 /* 2048 is large enough for all known terminals, according to the
1245 GNU termcap manual. */
1246 char term_buffer
[2048];
1250 status
= tgetent (term_buffer
, termtype
);
1255 val
= tgetnum ("li");
1257 lines_per_page
= val
;
1259 /* The number of lines per page is not mentioned
1260 in the terminal description. This probably means
1261 that paging is not useful (e.g. emacs shell window),
1262 so disable paging. */
1263 lines_per_page
= UINT_MAX
;
1265 val
= tgetnum ("co");
1267 chars_per_line
= val
;
1272 set_width_command ((char *)NULL
, 0, c
);
1275 (add_set_cmd ("demangle", class_support
, var_boolean
,
1277 "Set demangling of encoded C++ names when displaying symbols.",
1282 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
1283 (char *)&sevenbit_strings
,
1284 "Set printing of 8-bit characters in strings as \\nnn.",
1289 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
1290 (char *)&asm_demangle
,
1291 "Set demangling of C++ names in disassembly listings.",