1 /* Print values for GDB, the GNU debugger.
3 Copyright (C) 1986-2020 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/>. */
30 #include "target-float.h"
31 #include "extension.h"
33 #include "gdb_obstack.h"
35 #include "typeprint.h"
38 #include "gdbsupport/byte-vector.h"
39 #include "cli/cli-option.h"
41 #include "cli/cli-style.h"
42 #include "count-one-bits.h"
44 /* Maximum number of wchars returned from wchar_iterate. */
47 /* A convenience macro to compute the size of a wchar_t buffer containing X
49 #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t))
51 /* Character buffer size saved while iterating over wchars. */
52 #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS)
54 /* A structure to encapsulate state information from iterated
55 character conversions. */
56 struct converted_character
58 /* The number of characters converted. */
61 /* The result of the conversion. See charset.h for more. */
62 enum wchar_iterate_result result
;
64 /* The (saved) converted character(s). */
65 gdb_wchar_t chars
[WCHAR_BUFLEN_MAX
];
67 /* The first converted target byte. */
70 /* The number of bytes converted. */
73 /* How many times this character(s) is repeated. */
77 /* Command lists for set/show print raw. */
78 struct cmd_list_element
*setprintrawlist
;
79 struct cmd_list_element
*showprintrawlist
;
81 /* Prototypes for local functions */
83 static int partial_memory_read (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
84 int len
, int *errptr
);
86 static void set_input_radix_1 (int, unsigned);
88 static void set_output_radix_1 (int, unsigned);
90 static void val_print_type_code_flags (struct type
*type
,
91 const gdb_byte
*valaddr
,
92 struct ui_file
*stream
);
94 #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */
95 #define PRINT_MAX_DEPTH_DEFAULT 20 /* Start print_max_depth off at this value. */
97 struct value_print_options user_print_options
=
99 Val_prettyformat_default
, /* prettyformat */
100 0, /* prettyformat_arrays */
101 0, /* prettyformat_structs */
104 1, /* addressprint */
106 PRINT_MAX_DEFAULT
, /* print_max */
107 10, /* repeat_count_threshold */
108 0, /* output_format */
110 0, /* stop_print_at_null */
111 0, /* print_array_indexes */
113 1, /* static_field_print */
114 1, /* pascal_static_field_print */
117 1, /* symbol_print */
118 PRINT_MAX_DEPTH_DEFAULT
, /* max_depth */
122 /* Initialize *OPTS to be a copy of the user print options. */
124 get_user_print_options (struct value_print_options
*opts
)
126 *opts
= user_print_options
;
129 /* Initialize *OPTS to be a copy of the user print options, but with
130 pretty-formatting disabled. */
132 get_no_prettyformat_print_options (struct value_print_options
*opts
)
134 *opts
= user_print_options
;
135 opts
->prettyformat
= Val_no_prettyformat
;
138 /* Initialize *OPTS to be a copy of the user print options, but using
139 FORMAT as the formatting option. */
141 get_formatted_print_options (struct value_print_options
*opts
,
144 *opts
= user_print_options
;
145 opts
->format
= format
;
149 show_print_max (struct ui_file
*file
, int from_tty
,
150 struct cmd_list_element
*c
, const char *value
)
152 fprintf_filtered (file
,
153 _("Limit on string chars or array "
154 "elements to print is %s.\n"),
159 /* Default input and output radixes, and output format letter. */
161 unsigned input_radix
= 10;
163 show_input_radix (struct ui_file
*file
, int from_tty
,
164 struct cmd_list_element
*c
, const char *value
)
166 fprintf_filtered (file
,
167 _("Default input radix for entering numbers is %s.\n"),
171 unsigned output_radix
= 10;
173 show_output_radix (struct ui_file
*file
, int from_tty
,
174 struct cmd_list_element
*c
, const char *value
)
176 fprintf_filtered (file
,
177 _("Default output radix for printing of values is %s.\n"),
181 /* By default we print arrays without printing the index of each element in
182 the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */
185 show_print_array_indexes (struct ui_file
*file
, int from_tty
,
186 struct cmd_list_element
*c
, const char *value
)
188 fprintf_filtered (file
, _("Printing of array indexes is %s.\n"), value
);
191 /* Print repeat counts if there are more than this many repetitions of an
192 element in an array. Referenced by the low level language dependent
196 show_repeat_count_threshold (struct ui_file
*file
, int from_tty
,
197 struct cmd_list_element
*c
, const char *value
)
199 fprintf_filtered (file
, _("Threshold for repeated print elements is %s.\n"),
203 /* If nonzero, stops printing of char arrays at first null. */
206 show_stop_print_at_null (struct ui_file
*file
, int from_tty
,
207 struct cmd_list_element
*c
, const char *value
)
209 fprintf_filtered (file
,
210 _("Printing of char arrays to stop "
211 "at first null char is %s.\n"),
215 /* Controls pretty printing of structures. */
218 show_prettyformat_structs (struct ui_file
*file
, int from_tty
,
219 struct cmd_list_element
*c
, const char *value
)
221 fprintf_filtered (file
, _("Pretty formatting of structures is %s.\n"), value
);
224 /* Controls pretty printing of arrays. */
227 show_prettyformat_arrays (struct ui_file
*file
, int from_tty
,
228 struct cmd_list_element
*c
, const char *value
)
230 fprintf_filtered (file
, _("Pretty formatting of arrays is %s.\n"), value
);
233 /* If nonzero, causes unions inside structures or other unions to be
237 show_unionprint (struct ui_file
*file
, int from_tty
,
238 struct cmd_list_element
*c
, const char *value
)
240 fprintf_filtered (file
,
241 _("Printing of unions interior to structures is %s.\n"),
245 /* If nonzero, causes machine addresses to be printed in certain contexts. */
248 show_addressprint (struct ui_file
*file
, int from_tty
,
249 struct cmd_list_element
*c
, const char *value
)
251 fprintf_filtered (file
, _("Printing of addresses is %s.\n"), value
);
255 show_symbol_print (struct ui_file
*file
, int from_tty
,
256 struct cmd_list_element
*c
, const char *value
)
258 fprintf_filtered (file
,
259 _("Printing of symbols when printing pointers is %s.\n"),
265 /* A helper function for val_print. When printing in "summary" mode,
266 we want to print scalar arguments, but not aggregate arguments.
267 This function distinguishes between the two. */
270 val_print_scalar_type_p (struct type
*type
)
272 type
= check_typedef (type
);
273 while (TYPE_IS_REFERENCE (type
))
275 type
= TYPE_TARGET_TYPE (type
);
276 type
= check_typedef (type
);
278 switch (TYPE_CODE (type
))
280 case TYPE_CODE_ARRAY
:
281 case TYPE_CODE_STRUCT
:
282 case TYPE_CODE_UNION
:
284 case TYPE_CODE_STRING
:
291 /* A helper function for val_print. When printing with limited depth we
292 want to print string and scalar arguments, but not aggregate arguments.
293 This function distinguishes between the two. */
296 val_print_scalar_or_string_type_p (struct type
*type
,
297 const struct language_defn
*language
)
299 return (val_print_scalar_type_p (type
)
300 || language
->la_is_string_type_p (type
));
303 /* See its definition in value.h. */
306 valprint_check_validity (struct ui_file
*stream
,
308 LONGEST embedded_offset
,
309 const struct value
*val
)
311 type
= check_typedef (type
);
313 if (type_not_associated (type
))
315 val_print_not_associated (stream
);
319 if (type_not_allocated (type
))
321 val_print_not_allocated (stream
);
325 if (TYPE_CODE (type
) != TYPE_CODE_UNION
326 && TYPE_CODE (type
) != TYPE_CODE_STRUCT
327 && TYPE_CODE (type
) != TYPE_CODE_ARRAY
)
329 if (value_bits_any_optimized_out (val
,
330 TARGET_CHAR_BIT
* embedded_offset
,
331 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
333 val_print_optimized_out (val
, stream
);
337 if (value_bits_synthetic_pointer (val
, TARGET_CHAR_BIT
* embedded_offset
,
338 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
340 const int is_ref
= TYPE_CODE (type
) == TYPE_CODE_REF
;
341 int ref_is_addressable
= 0;
345 const struct value
*deref_val
= coerce_ref_if_computed (val
);
347 if (deref_val
!= NULL
)
348 ref_is_addressable
= value_lval_const (deref_val
) == lval_memory
;
351 if (!is_ref
|| !ref_is_addressable
)
352 fputs_styled (_("<synthetic pointer>"), metadata_style
.style (),
355 /* C++ references should be valid even if they're synthetic. */
359 if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
361 val_print_unavailable (stream
);
370 val_print_optimized_out (const struct value
*val
, struct ui_file
*stream
)
372 if (val
!= NULL
&& value_lval_const (val
) == lval_register
)
373 val_print_not_saved (stream
);
375 fprintf_styled (stream
, metadata_style
.style (), _("<optimized out>"));
379 val_print_not_saved (struct ui_file
*stream
)
381 fprintf_styled (stream
, metadata_style
.style (), _("<not saved>"));
385 val_print_unavailable (struct ui_file
*stream
)
387 fprintf_styled (stream
, metadata_style
.style (), _("<unavailable>"));
391 val_print_invalid_address (struct ui_file
*stream
)
393 fprintf_styled (stream
, metadata_style
.style (), _("<invalid address>"));
396 /* Print a pointer based on the type of its target.
398 Arguments to this functions are roughly the same as those in
399 generic_val_print. A difference is that ADDRESS is the address to print,
400 with embedded_offset already added. ELTTYPE represents
401 the pointed type after check_typedef. */
404 print_unpacked_pointer (struct type
*type
, struct type
*elttype
,
405 CORE_ADDR address
, struct ui_file
*stream
,
406 const struct value_print_options
*options
)
408 struct gdbarch
*gdbarch
= get_type_arch (type
);
410 if (TYPE_CODE (elttype
) == TYPE_CODE_FUNC
)
412 /* Try to print what function it points to. */
413 print_function_pointer_address (options
, gdbarch
, address
, stream
);
417 if (options
->symbol_print
)
418 print_address_demangle (options
, gdbarch
, address
, stream
, demangle
);
419 else if (options
->addressprint
)
420 fputs_filtered (paddress (gdbarch
, address
), stream
);
423 /* generic_val_print helper for TYPE_CODE_ARRAY. */
426 generic_val_print_array (struct type
*type
,
427 int embedded_offset
, CORE_ADDR address
,
428 struct ui_file
*stream
, int recurse
,
429 struct value
*original_value
,
430 const struct value_print_options
*options
,
432 generic_val_print_decorations
*decorations
)
434 struct type
*unresolved_elttype
= TYPE_TARGET_TYPE (type
);
435 struct type
*elttype
= check_typedef (unresolved_elttype
);
437 if (TYPE_LENGTH (type
) > 0 && TYPE_LENGTH (unresolved_elttype
) > 0)
439 LONGEST low_bound
, high_bound
;
441 if (!get_array_bounds (type
, &low_bound
, &high_bound
))
442 error (_("Could not determine the array high bound"));
444 if (options
->prettyformat_arrays
)
446 print_spaces_filtered (2 + 2 * recurse
, stream
);
449 fputs_filtered (decorations
->array_start
, stream
);
450 val_print_array_elements (type
, embedded_offset
,
452 recurse
, original_value
, options
, 0);
453 fputs_filtered (decorations
->array_end
, stream
);
457 /* Array of unspecified length: treat like pointer to first elt. */
458 print_unpacked_pointer (type
, elttype
, address
+ embedded_offset
, stream
,
464 /* generic_val_print helper for TYPE_CODE_PTR. */
467 generic_val_print_ptr (struct type
*type
,
468 int embedded_offset
, struct ui_file
*stream
,
469 struct value
*original_value
,
470 const struct value_print_options
*options
)
472 struct gdbarch
*gdbarch
= get_type_arch (type
);
473 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
475 if (options
->format
&& options
->format
!= 's')
477 val_print_scalar_formatted (type
, embedded_offset
,
478 original_value
, options
, 0, stream
);
482 struct type
*unresolved_elttype
= TYPE_TARGET_TYPE(type
);
483 struct type
*elttype
= check_typedef (unresolved_elttype
);
484 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
485 CORE_ADDR addr
= unpack_pointer (type
,
486 valaddr
+ embedded_offset
* unit_size
);
488 print_unpacked_pointer (type
, elttype
, addr
, stream
, options
);
493 /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */
496 generic_val_print_memberptr (struct type
*type
,
497 int embedded_offset
, struct ui_file
*stream
,
498 struct value
*original_value
,
499 const struct value_print_options
*options
)
501 val_print_scalar_formatted (type
, embedded_offset
,
502 original_value
, options
, 0, stream
);
505 /* Print '@' followed by the address contained in ADDRESS_BUFFER. */
508 print_ref_address (struct type
*type
, const gdb_byte
*address_buffer
,
509 int embedded_offset
, struct ui_file
*stream
)
511 struct gdbarch
*gdbarch
= get_type_arch (type
);
513 if (address_buffer
!= NULL
)
516 = extract_typed_address (address_buffer
+ embedded_offset
, type
);
518 fprintf_filtered (stream
, "@");
519 fputs_filtered (paddress (gdbarch
, address
), stream
);
521 /* Else: we have a non-addressable value, such as a DW_AT_const_value. */
524 /* If VAL is addressable, return the value contents buffer of a value that
525 represents a pointer to VAL. Otherwise return NULL. */
527 static const gdb_byte
*
528 get_value_addr_contents (struct value
*deref_val
)
530 gdb_assert (deref_val
!= NULL
);
532 if (value_lval_const (deref_val
) == lval_memory
)
533 return value_contents_for_printing_const (value_addr (deref_val
));
536 /* We have a non-addressable value, such as a DW_AT_const_value. */
541 /* generic_val_print helper for TYPE_CODE_{RVALUE_,}REF. */
544 generic_val_print_ref (struct type
*type
,
545 int embedded_offset
, struct ui_file
*stream
, int recurse
,
546 struct value
*original_value
,
547 const struct value_print_options
*options
)
549 struct type
*elttype
= check_typedef (TYPE_TARGET_TYPE (type
));
550 struct value
*deref_val
= NULL
;
551 const int value_is_synthetic
552 = value_bits_synthetic_pointer (original_value
,
553 TARGET_CHAR_BIT
* embedded_offset
,
554 TARGET_CHAR_BIT
* TYPE_LENGTH (type
));
555 const int must_coerce_ref
= ((options
->addressprint
&& value_is_synthetic
)
556 || options
->deref_ref
);
557 const int type_is_defined
= TYPE_CODE (elttype
) != TYPE_CODE_UNDEF
;
558 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
560 if (must_coerce_ref
&& type_is_defined
)
562 deref_val
= coerce_ref_if_computed (original_value
);
564 if (deref_val
!= NULL
)
566 /* More complicated computed references are not supported. */
567 gdb_assert (embedded_offset
== 0);
570 deref_val
= value_at (TYPE_TARGET_TYPE (type
),
571 unpack_pointer (type
, valaddr
+ embedded_offset
));
573 /* Else, original_value isn't a synthetic reference or we don't have to print
574 the reference's contents.
576 Notice that for references to TYPE_CODE_STRUCT, 'set print object on' will
577 cause original_value to be a not_lval instead of an lval_computed,
578 which will make value_bits_synthetic_pointer return false.
579 This happens because if options->objectprint is true, c_value_print will
580 overwrite original_value's contents with the result of coercing
581 the reference through value_addr, and then set its type back to
582 TYPE_CODE_REF. In that case we don't have to coerce the reference again;
583 we can simply treat it as non-synthetic and move on. */
585 if (options
->addressprint
)
587 const gdb_byte
*address
= (value_is_synthetic
&& type_is_defined
588 ? get_value_addr_contents (deref_val
)
591 print_ref_address (type
, address
, embedded_offset
, stream
);
593 if (options
->deref_ref
)
594 fputs_filtered (": ", stream
);
597 if (options
->deref_ref
)
600 common_val_print (deref_val
, stream
, recurse
, options
,
603 fputs_filtered ("???", stream
);
607 /* Helper function for generic_val_print_enum.
608 This is also used to print enums in TYPE_CODE_FLAGS values. */
611 generic_val_print_enum_1 (struct type
*type
, LONGEST val
,
612 struct ui_file
*stream
)
617 len
= TYPE_NFIELDS (type
);
618 for (i
= 0; i
< len
; i
++)
621 if (val
== TYPE_FIELD_ENUMVAL (type
, i
))
628 fputs_styled (TYPE_FIELD_NAME (type
, i
), variable_name_style
.style (),
631 else if (TYPE_FLAG_ENUM (type
))
635 /* We have a "flag" enum, so we try to decompose it into pieces as
636 appropriate. The enum may have multiple enumerators representing
637 the same bit, in which case we choose to only print the first one
639 for (i
= 0; i
< len
; ++i
)
643 ULONGEST enumval
= TYPE_FIELD_ENUMVAL (type
, i
);
644 int nbits
= count_one_bits_ll (enumval
);
646 gdb_assert (nbits
== 0 || nbits
== 1);
648 if ((val
& enumval
) != 0)
652 fputs_filtered ("(", stream
);
656 fputs_filtered (" | ", stream
);
658 val
&= ~TYPE_FIELD_ENUMVAL (type
, i
);
659 fputs_styled (TYPE_FIELD_NAME (type
, i
),
660 variable_name_style
.style (), stream
);
666 /* There are leftover bits, print them. */
668 fputs_filtered ("(", stream
);
670 fputs_filtered (" | ", stream
);
672 fputs_filtered ("unknown: 0x", stream
);
673 print_longest (stream
, 'x', 0, val
);
674 fputs_filtered (")", stream
);
678 /* Nothing has been printed and the value is 0, the enum value must
680 fputs_filtered ("0", stream
);
684 /* Something has been printed, close the parenthesis. */
685 fputs_filtered (")", stream
);
689 print_longest (stream
, 'd', 0, val
);
692 /* generic_val_print helper for TYPE_CODE_ENUM. */
695 generic_val_print_enum (struct type
*type
,
696 int embedded_offset
, struct ui_file
*stream
,
697 struct value
*original_value
,
698 const struct value_print_options
*options
)
701 struct gdbarch
*gdbarch
= get_type_arch (type
);
702 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
706 val_print_scalar_formatted (type
, embedded_offset
,
707 original_value
, options
, 0, stream
);
711 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
713 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
715 generic_val_print_enum_1 (type
, val
, stream
);
719 /* generic_val_print helper for TYPE_CODE_FLAGS. */
722 generic_val_print_flags (struct type
*type
,
723 int embedded_offset
, struct ui_file
*stream
,
724 struct value
*original_value
,
725 const struct value_print_options
*options
)
729 val_print_scalar_formatted (type
, embedded_offset
, original_value
,
733 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
735 val_print_type_code_flags (type
, valaddr
+ embedded_offset
, stream
);
739 /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
742 generic_val_print_func (struct type
*type
,
743 int embedded_offset
, CORE_ADDR address
,
744 struct ui_file
*stream
,
745 struct value
*original_value
,
746 const struct value_print_options
*options
)
748 struct gdbarch
*gdbarch
= get_type_arch (type
);
752 val_print_scalar_formatted (type
, embedded_offset
,
753 original_value
, options
, 0, stream
);
757 /* FIXME, we should consider, at least for ANSI C language,
758 eliminating the distinction made between FUNCs and POINTERs
760 fprintf_filtered (stream
, "{");
761 type_print (type
, "", stream
, -1);
762 fprintf_filtered (stream
, "} ");
763 /* Try to print what function it points to, and its address. */
764 print_address_demangle (options
, gdbarch
, address
, stream
, demangle
);
768 /* generic_val_print helper for TYPE_CODE_BOOL. */
771 generic_val_print_bool (struct type
*type
,
772 int embedded_offset
, struct ui_file
*stream
,
773 struct value
*original_value
,
774 const struct value_print_options
*options
,
775 const struct generic_val_print_decorations
*decorations
)
778 struct gdbarch
*gdbarch
= get_type_arch (type
);
779 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
781 if (options
->format
|| options
->output_format
)
783 struct value_print_options opts
= *options
;
784 opts
.format
= (options
->format
? options
->format
785 : options
->output_format
);
786 val_print_scalar_formatted (type
, embedded_offset
,
787 original_value
, &opts
, 0, stream
);
791 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
793 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
795 fputs_filtered (decorations
->false_name
, stream
);
797 fputs_filtered (decorations
->true_name
, stream
);
799 print_longest (stream
, 'd', 0, val
);
803 /* generic_val_print helper for TYPE_CODE_INT. */
806 generic_val_print_int (struct type
*type
,
807 int embedded_offset
, struct ui_file
*stream
,
808 struct value
*original_value
,
809 const struct value_print_options
*options
)
811 struct value_print_options opts
= *options
;
813 opts
.format
= (options
->format
? options
->format
814 : options
->output_format
);
815 val_print_scalar_formatted (type
, embedded_offset
,
816 original_value
, &opts
, 0, stream
);
819 /* generic_val_print helper for TYPE_CODE_CHAR. */
822 generic_val_print_char (struct type
*type
, struct type
*unresolved_type
,
824 struct ui_file
*stream
,
825 struct value
*original_value
,
826 const struct value_print_options
*options
)
829 struct gdbarch
*gdbarch
= get_type_arch (type
);
830 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
832 if (options
->format
|| options
->output_format
)
834 struct value_print_options opts
= *options
;
836 opts
.format
= (options
->format
? options
->format
837 : options
->output_format
);
838 val_print_scalar_formatted (type
, embedded_offset
,
839 original_value
, &opts
, 0, stream
);
843 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
845 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
846 if (TYPE_UNSIGNED (type
))
847 fprintf_filtered (stream
, "%u", (unsigned int) val
);
849 fprintf_filtered (stream
, "%d", (int) val
);
850 fputs_filtered (" ", stream
);
851 LA_PRINT_CHAR (val
, unresolved_type
, stream
);
855 /* generic_val_print helper for TYPE_CODE_FLT and TYPE_CODE_DECFLOAT. */
858 generic_val_print_float (struct type
*type
,
859 int embedded_offset
, struct ui_file
*stream
,
860 struct value
*original_value
,
861 const struct value_print_options
*options
)
863 struct gdbarch
*gdbarch
= get_type_arch (type
);
864 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
868 val_print_scalar_formatted (type
, embedded_offset
,
869 original_value
, options
, 0, stream
);
873 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
875 print_floating (valaddr
+ embedded_offset
* unit_size
, type
, stream
);
879 /* generic_val_print helper for TYPE_CODE_COMPLEX. */
882 generic_val_print_complex (struct type
*type
,
883 int embedded_offset
, struct ui_file
*stream
,
884 struct value
*original_value
,
885 const struct value_print_options
*options
,
886 const struct generic_val_print_decorations
889 struct gdbarch
*gdbarch
= get_type_arch (type
);
890 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
891 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
893 fprintf_filtered (stream
, "%s", decorations
->complex_prefix
);
895 val_print_scalar_formatted (TYPE_TARGET_TYPE (type
),
896 embedded_offset
, original_value
, options
, 0,
899 print_floating (valaddr
+ embedded_offset
* unit_size
,
900 TYPE_TARGET_TYPE (type
), stream
);
901 fprintf_filtered (stream
, "%s", decorations
->complex_infix
);
903 val_print_scalar_formatted (TYPE_TARGET_TYPE (type
),
905 + type_length_units (TYPE_TARGET_TYPE (type
)),
906 original_value
, options
, 0, stream
);
908 print_floating (valaddr
+ embedded_offset
* unit_size
909 + TYPE_LENGTH (TYPE_TARGET_TYPE (type
)),
910 TYPE_TARGET_TYPE (type
), stream
);
911 fprintf_filtered (stream
, "%s", decorations
->complex_suffix
);
914 /* A generic val_print that is suitable for use by language
915 implementations of the la_val_print method. This function can
916 handle most type codes, though not all, notably exception
917 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
920 Most arguments are as to val_print.
922 The additional DECORATIONS argument can be used to customize the
923 output in some small, language-specific ways. */
926 generic_val_print (struct type
*type
,
927 int embedded_offset
, CORE_ADDR address
,
928 struct ui_file
*stream
, int recurse
,
929 struct value
*original_value
,
930 const struct value_print_options
*options
,
931 const struct generic_val_print_decorations
*decorations
)
933 struct type
*unresolved_type
= type
;
935 type
= check_typedef (type
);
936 switch (TYPE_CODE (type
))
938 case TYPE_CODE_ARRAY
:
939 generic_val_print_array (type
, embedded_offset
, address
, stream
,
940 recurse
, original_value
, options
, decorations
);
943 case TYPE_CODE_MEMBERPTR
:
944 generic_val_print_memberptr (type
, embedded_offset
, stream
,
945 original_value
, options
);
949 generic_val_print_ptr (type
, embedded_offset
, stream
,
950 original_value
, options
);
954 case TYPE_CODE_RVALUE_REF
:
955 generic_val_print_ref (type
, embedded_offset
, stream
, recurse
,
956 original_value
, options
);
960 generic_val_print_enum (type
, embedded_offset
, stream
,
961 original_value
, options
);
964 case TYPE_CODE_FLAGS
:
965 generic_val_print_flags (type
, embedded_offset
, stream
,
966 original_value
, options
);
970 case TYPE_CODE_METHOD
:
971 generic_val_print_func (type
, embedded_offset
, address
, stream
,
972 original_value
, options
);
976 generic_val_print_bool (type
, embedded_offset
, stream
,
977 original_value
, options
, decorations
);
980 case TYPE_CODE_RANGE
:
981 /* FIXME: create_static_range_type does not set the unsigned bit in a
982 range type (I think it probably should copy it from the
983 target type), so we won't print values which are too large to
984 fit in a signed integer correctly. */
985 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
986 print with the target type, though, because the size of our
987 type and the target type might differ). */
992 generic_val_print_int (type
, embedded_offset
, stream
,
993 original_value
, options
);
997 generic_val_print_char (type
, unresolved_type
, embedded_offset
,
998 stream
, original_value
, options
);
1002 case TYPE_CODE_DECFLOAT
:
1003 generic_val_print_float (type
, embedded_offset
, stream
,
1004 original_value
, options
);
1007 case TYPE_CODE_VOID
:
1008 fputs_filtered (decorations
->void_name
, stream
);
1011 case TYPE_CODE_ERROR
:
1012 fprintf_filtered (stream
, "%s", TYPE_ERROR_NAME (type
));
1015 case TYPE_CODE_UNDEF
:
1016 /* This happens (without TYPE_STUB set) on systems which don't use
1017 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
1018 and no complete type for struct foo in that file. */
1019 fprintf_styled (stream
, metadata_style
.style (), _("<incomplete type>"));
1022 case TYPE_CODE_COMPLEX
:
1023 generic_val_print_complex (type
, embedded_offset
, stream
,
1024 original_value
, options
, decorations
);
1027 case TYPE_CODE_UNION
:
1028 case TYPE_CODE_STRUCT
:
1029 case TYPE_CODE_METHODPTR
:
1031 error (_("Unhandled type code %d in symbol table."),
1036 /* Helper function for val_print and common_val_print that does the
1037 work. Arguments are as to val_print, but FULL_VALUE, if given, is
1038 the value to be printed. */
1041 do_val_print (struct value
*full_value
,
1042 struct type
*type
, LONGEST embedded_offset
,
1043 CORE_ADDR address
, struct ui_file
*stream
, int recurse
,
1045 const struct value_print_options
*options
,
1046 const struct language_defn
*language
)
1049 struct value_print_options local_opts
= *options
;
1050 struct type
*real_type
= check_typedef (type
);
1052 if (local_opts
.prettyformat
== Val_prettyformat_default
)
1053 local_opts
.prettyformat
= (local_opts
.prettyformat_structs
1054 ? Val_prettyformat
: Val_no_prettyformat
);
1058 /* Ensure that the type is complete and not just a stub. If the type is
1059 only a stub and we can't find and substitute its complete type, then
1060 print appropriate string and return. */
1062 if (TYPE_STUB (real_type
))
1064 fprintf_styled (stream
, metadata_style
.style (), _("<incomplete type>"));
1068 if (!valprint_check_validity (stream
, real_type
, embedded_offset
, val
))
1073 ret
= apply_ext_lang_val_pretty_printer (type
, embedded_offset
,
1074 address
, stream
, recurse
,
1075 val
, options
, language
);
1080 /* Handle summary mode. If the value is a scalar, print it;
1081 otherwise, print an ellipsis. */
1082 if (options
->summary
&& !val_print_scalar_type_p (type
))
1084 fprintf_filtered (stream
, "...");
1088 /* If this value is too deep then don't print it. */
1089 if (!val_print_scalar_or_string_type_p (type
, language
)
1090 && val_print_check_max_depth (stream
, recurse
, options
, language
))
1095 language
->la_val_print (type
, embedded_offset
, address
,
1096 stream
, recurse
, val
,
1099 catch (const gdb_exception_error
&except
)
1101 fprintf_styled (stream
, metadata_style
.style (),
1102 _("<error reading variable>"));
1106 /* Print using the given LANGUAGE the data of type TYPE located at
1107 VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came
1108 from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto
1109 stdio stream STREAM according to OPTIONS. VAL is the whole object
1110 that came from ADDRESS.
1112 The language printers will pass down an adjusted EMBEDDED_OFFSET to
1113 further helper subroutines as subfields of TYPE are printed. In
1114 such cases, VAL is passed down unadjusted, so
1115 that VAL can be queried for metadata about the contents data being
1116 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
1117 buffer. For example: "has this field been optimized out", or "I'm
1118 printing an object while inspecting a traceframe; has this
1119 particular piece of data been collected?".
1121 RECURSE indicates the amount of indentation to supply before
1122 continuation lines; this amount is roughly twice the value of
1126 val_print (struct type
*type
, LONGEST embedded_offset
,
1127 CORE_ADDR address
, struct ui_file
*stream
, int recurse
,
1129 const struct value_print_options
*options
,
1130 const struct language_defn
*language
)
1132 do_val_print (nullptr, type
, embedded_offset
, address
, stream
,
1133 recurse
, val
, options
, language
);
1136 /* See valprint.h. */
1139 val_print_check_max_depth (struct ui_file
*stream
, int recurse
,
1140 const struct value_print_options
*options
,
1141 const struct language_defn
*language
)
1143 if (options
->max_depth
> -1 && recurse
>= options
->max_depth
)
1145 gdb_assert (language
->la_struct_too_deep_ellipsis
!= NULL
);
1146 fputs_filtered (language
->la_struct_too_deep_ellipsis
, stream
);
1153 /* Check whether the value VAL is printable. Return 1 if it is;
1154 return 0 and print an appropriate error message to STREAM according to
1155 OPTIONS if it is not. */
1158 value_check_printable (struct value
*val
, struct ui_file
*stream
,
1159 const struct value_print_options
*options
)
1163 fprintf_styled (stream
, metadata_style
.style (),
1164 _("<address of value unknown>"));
1168 if (value_entirely_optimized_out (val
))
1170 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1171 fprintf_filtered (stream
, "...");
1173 val_print_optimized_out (val
, stream
);
1177 if (value_entirely_unavailable (val
))
1179 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1180 fprintf_filtered (stream
, "...");
1182 val_print_unavailable (stream
);
1186 if (TYPE_CODE (value_type (val
)) == TYPE_CODE_INTERNAL_FUNCTION
)
1188 fprintf_styled (stream
, metadata_style
.style (),
1189 _("<internal function %s>"),
1190 value_internal_function_name (val
));
1194 if (type_not_associated (value_type (val
)))
1196 val_print_not_associated (stream
);
1200 if (type_not_allocated (value_type (val
)))
1202 val_print_not_allocated (stream
);
1209 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
1212 This is a preferable interface to val_print, above, because it uses
1213 GDB's value mechanism. */
1216 common_val_print (struct value
*val
, struct ui_file
*stream
, int recurse
,
1217 const struct value_print_options
*options
,
1218 const struct language_defn
*language
)
1220 if (!value_check_printable (val
, stream
, options
))
1223 if (language
->la_language
== language_ada
)
1224 /* The value might have a dynamic type, which would cause trouble
1225 below when trying to extract the value contents (since the value
1226 size is determined from the type size which is unknown). So
1227 get a fixed representation of our value. */
1228 val
= ada_to_fixed_value (val
);
1230 if (value_lazy (val
))
1231 value_fetch_lazy (val
);
1233 do_val_print (val
, value_type (val
),
1234 value_embedded_offset (val
), value_address (val
),
1236 val
, options
, language
);
1239 /* Print on stream STREAM the value VAL according to OPTIONS. The value
1240 is printed using the current_language syntax. */
1243 value_print (struct value
*val
, struct ui_file
*stream
,
1244 const struct value_print_options
*options
)
1246 scoped_value_mark free_values
;
1248 if (!value_check_printable (val
, stream
, options
))
1254 = apply_ext_lang_val_pretty_printer (value_type (val
),
1255 value_embedded_offset (val
),
1256 value_address (val
),
1258 val
, options
, current_language
);
1264 LA_VALUE_PRINT (val
, stream
, options
);
1268 val_print_type_code_flags (struct type
*type
, const gdb_byte
*valaddr
,
1269 struct ui_file
*stream
)
1271 ULONGEST val
= unpack_long (type
, valaddr
);
1272 int field
, nfields
= TYPE_NFIELDS (type
);
1273 struct gdbarch
*gdbarch
= get_type_arch (type
);
1274 struct type
*bool_type
= builtin_type (gdbarch
)->builtin_bool
;
1276 fputs_filtered ("[", stream
);
1277 for (field
= 0; field
< nfields
; field
++)
1279 if (TYPE_FIELD_NAME (type
, field
)[0] != '\0')
1281 struct type
*field_type
= TYPE_FIELD_TYPE (type
, field
);
1283 if (field_type
== bool_type
1284 /* We require boolean types here to be one bit wide. This is a
1285 problematic place to notify the user of an internal error
1286 though. Instead just fall through and print the field as an
1288 && TYPE_FIELD_BITSIZE (type
, field
) == 1)
1290 if (val
& ((ULONGEST
)1 << TYPE_FIELD_BITPOS (type
, field
)))
1293 styled_string (variable_name_style
.style (),
1294 TYPE_FIELD_NAME (type
, field
)));
1298 unsigned field_len
= TYPE_FIELD_BITSIZE (type
, field
);
1300 = val
>> (TYPE_FIELD_BITPOS (type
, field
) - field_len
+ 1);
1302 if (field_len
< sizeof (ULONGEST
) * TARGET_CHAR_BIT
)
1303 field_val
&= ((ULONGEST
) 1 << field_len
) - 1;
1304 fprintf_filtered (stream
, " %ps=",
1305 styled_string (variable_name_style
.style (),
1306 TYPE_FIELD_NAME (type
, field
)));
1307 if (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
)
1308 generic_val_print_enum_1 (field_type
, field_val
, stream
);
1310 print_longest (stream
, 'd', 0, field_val
);
1314 fputs_filtered (" ]", stream
);
1317 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1318 according to OPTIONS and SIZE on STREAM. Format i is not supported
1321 This is how the elements of an array or structure are printed
1325 val_print_scalar_formatted (struct type
*type
,
1326 LONGEST embedded_offset
,
1328 const struct value_print_options
*options
,
1330 struct ui_file
*stream
)
1332 struct gdbarch
*arch
= get_type_arch (type
);
1333 int unit_size
= gdbarch_addressable_memory_unit_size (arch
);
1335 gdb_assert (val
!= NULL
);
1337 /* If we get here with a string format, try again without it. Go
1338 all the way back to the language printers, which may call us
1340 if (options
->format
== 's')
1342 struct value_print_options opts
= *options
;
1345 val_print (type
, embedded_offset
, 0, stream
, 0, val
, &opts
,
1350 /* value_contents_for_printing fetches all VAL's contents. They are
1351 needed to check whether VAL is optimized-out or unavailable
1353 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
1355 /* A scalar object that does not have all bits available can't be
1356 printed, because all bits contribute to its representation. */
1357 if (value_bits_any_optimized_out (val
,
1358 TARGET_CHAR_BIT
* embedded_offset
,
1359 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
1360 val_print_optimized_out (val
, stream
);
1361 else if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
1362 val_print_unavailable (stream
);
1364 print_scalar_formatted (valaddr
+ embedded_offset
* unit_size
, type
,
1365 options
, size
, stream
);
1368 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1369 The raison d'etre of this function is to consolidate printing of
1370 LONG_LONG's into this one function. The format chars b,h,w,g are
1371 from print_scalar_formatted(). Numbers are printed using C
1374 USE_C_FORMAT means to use C format in all cases. Without it,
1375 'o' and 'x' format do not include the standard C radix prefix
1378 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1379 and was intended to request formatting according to the current
1380 language and would be used for most integers that GDB prints. The
1381 exceptional cases were things like protocols where the format of
1382 the integer is a protocol thing, not a user-visible thing). The
1383 parameter remains to preserve the information of what things might
1384 be printed with language-specific format, should we ever resurrect
1388 print_longest (struct ui_file
*stream
, int format
, int use_c_format
,
1396 val
= int_string (val_long
, 10, 1, 0, 1); break;
1398 val
= int_string (val_long
, 10, 0, 0, 1); break;
1400 val
= int_string (val_long
, 16, 0, 0, use_c_format
); break;
1402 val
= int_string (val_long
, 16, 0, 2, 1); break;
1404 val
= int_string (val_long
, 16, 0, 4, 1); break;
1406 val
= int_string (val_long
, 16, 0, 8, 1); break;
1408 val
= int_string (val_long
, 16, 0, 16, 1); break;
1411 val
= int_string (val_long
, 8, 0, 0, use_c_format
); break;
1413 internal_error (__FILE__
, __LINE__
,
1414 _("failed internal consistency check"));
1416 fputs_filtered (val
, stream
);
1419 /* This used to be a macro, but I don't think it is called often enough
1420 to merit such treatment. */
1421 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1422 arguments to a function, number in a value history, register number, etc.)
1423 where the value must not be larger than can fit in an int. */
1426 longest_to_int (LONGEST arg
)
1428 /* Let the compiler do the work. */
1429 int rtnval
= (int) arg
;
1431 /* Check for overflows or underflows. */
1432 if (sizeof (LONGEST
) > sizeof (int))
1436 error (_("Value out of range."));
1442 /* Print a floating point value of floating-point type TYPE,
1443 pointed to in GDB by VALADDR, on STREAM. */
1446 print_floating (const gdb_byte
*valaddr
, struct type
*type
,
1447 struct ui_file
*stream
)
1449 std::string str
= target_float_to_string (valaddr
, type
);
1450 fputs_filtered (str
.c_str (), stream
);
1454 print_binary_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1455 unsigned len
, enum bfd_endian byte_order
, bool zero_pad
)
1460 bool seen_a_one
= false;
1462 /* Declared "int" so it will be signed.
1463 This ensures that right shift will shift in zeros. */
1465 const int mask
= 0x080;
1467 if (byte_order
== BFD_ENDIAN_BIG
)
1473 /* Every byte has 8 binary characters; peel off
1474 and print from the MSB end. */
1476 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1478 if (*p
& (mask
>> i
))
1483 if (zero_pad
|| seen_a_one
|| b
== '1')
1484 fputc_filtered (b
, stream
);
1492 for (p
= valaddr
+ len
- 1;
1496 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1498 if (*p
& (mask
>> i
))
1503 if (zero_pad
|| seen_a_one
|| b
== '1')
1504 fputc_filtered (b
, stream
);
1511 /* When not zero-padding, ensure that something is printed when the
1513 if (!zero_pad
&& !seen_a_one
)
1514 fputc_filtered ('0', stream
);
1517 /* A helper for print_octal_chars that emits a single octal digit,
1518 optionally suppressing it if is zero and updating SEEN_A_ONE. */
1521 emit_octal_digit (struct ui_file
*stream
, bool *seen_a_one
, int digit
)
1523 if (*seen_a_one
|| digit
!= 0)
1524 fprintf_filtered (stream
, "%o", digit
);
1529 /* VALADDR points to an integer of LEN bytes.
1530 Print it in octal on stream or format it in buf. */
1533 print_octal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1534 unsigned len
, enum bfd_endian byte_order
)
1537 unsigned char octa1
, octa2
, octa3
, carry
;
1540 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1541 * the extra bits, which cycle every three bytes:
1543 * Byte side: 0 1 2 3
1545 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1547 * Octal side: 0 1 carry 3 4 carry ...
1549 * Cycle number: 0 1 2
1551 * But of course we are printing from the high side, so we have to
1552 * figure out where in the cycle we are so that we end up with no
1553 * left over bits at the end.
1555 #define BITS_IN_OCTAL 3
1556 #define HIGH_ZERO 0340
1557 #define LOW_ZERO 0034
1558 #define CARRY_ZERO 0003
1559 static_assert (HIGH_ZERO
+ LOW_ZERO
+ CARRY_ZERO
== 0xff,
1560 "cycle zero constants are wrong");
1561 #define HIGH_ONE 0200
1562 #define MID_ONE 0160
1563 #define LOW_ONE 0016
1564 #define CARRY_ONE 0001
1565 static_assert (HIGH_ONE
+ MID_ONE
+ LOW_ONE
+ CARRY_ONE
== 0xff,
1566 "cycle one constants are wrong");
1567 #define HIGH_TWO 0300
1568 #define MID_TWO 0070
1569 #define LOW_TWO 0007
1570 static_assert (HIGH_TWO
+ MID_TWO
+ LOW_TWO
== 0xff,
1571 "cycle two constants are wrong");
1573 /* For 32 we start in cycle 2, with two bits and one bit carry;
1574 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1576 cycle
= (len
* HOST_CHAR_BIT
) % BITS_IN_OCTAL
;
1579 fputs_filtered ("0", stream
);
1580 bool seen_a_one
= false;
1581 if (byte_order
== BFD_ENDIAN_BIG
)
1590 /* No carry in, carry out two bits. */
1592 octa1
= (HIGH_ZERO
& *p
) >> 5;
1593 octa2
= (LOW_ZERO
& *p
) >> 2;
1594 carry
= (CARRY_ZERO
& *p
);
1595 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1596 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1600 /* Carry in two bits, carry out one bit. */
1602 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1603 octa2
= (MID_ONE
& *p
) >> 4;
1604 octa3
= (LOW_ONE
& *p
) >> 1;
1605 carry
= (CARRY_ONE
& *p
);
1606 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1607 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1608 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1612 /* Carry in one bit, no carry out. */
1614 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1615 octa2
= (MID_TWO
& *p
) >> 3;
1616 octa3
= (LOW_TWO
& *p
);
1618 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1619 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1620 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1624 error (_("Internal error in octal conversion;"));
1628 cycle
= cycle
% BITS_IN_OCTAL
;
1633 for (p
= valaddr
+ len
- 1;
1640 /* Carry out, no carry in */
1642 octa1
= (HIGH_ZERO
& *p
) >> 5;
1643 octa2
= (LOW_ZERO
& *p
) >> 2;
1644 carry
= (CARRY_ZERO
& *p
);
1645 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1646 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1650 /* Carry in, carry out */
1652 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1653 octa2
= (MID_ONE
& *p
) >> 4;
1654 octa3
= (LOW_ONE
& *p
) >> 1;
1655 carry
= (CARRY_ONE
& *p
);
1656 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1657 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1658 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1662 /* Carry in, no carry out */
1664 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1665 octa2
= (MID_TWO
& *p
) >> 3;
1666 octa3
= (LOW_TWO
& *p
);
1668 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1669 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1670 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1674 error (_("Internal error in octal conversion;"));
1678 cycle
= cycle
% BITS_IN_OCTAL
;
1684 /* Possibly negate the integer represented by BYTES. It contains LEN
1685 bytes in the specified byte order. If the integer is negative,
1686 copy it into OUT_VEC, negate it, and return true. Otherwise, do
1687 nothing and return false. */
1690 maybe_negate_by_bytes (const gdb_byte
*bytes
, unsigned len
,
1691 enum bfd_endian byte_order
,
1692 gdb::byte_vector
*out_vec
)
1695 gdb_assert (len
> 0);
1696 if (byte_order
== BFD_ENDIAN_BIG
)
1697 sign_byte
= bytes
[0];
1699 sign_byte
= bytes
[len
- 1];
1700 if ((sign_byte
& 0x80) == 0)
1703 out_vec
->resize (len
);
1705 /* Compute -x == 1 + ~x. */
1706 if (byte_order
== BFD_ENDIAN_LITTLE
)
1709 for (unsigned i
= 0; i
< len
; ++i
)
1711 unsigned tem
= (0xff & ~bytes
[i
]) + carry
;
1712 (*out_vec
)[i
] = tem
& 0xff;
1719 for (unsigned i
= len
; i
> 0; --i
)
1721 unsigned tem
= (0xff & ~bytes
[i
- 1]) + carry
;
1722 (*out_vec
)[i
- 1] = tem
& 0xff;
1730 /* VALADDR points to an integer of LEN bytes.
1731 Print it in decimal on stream or format it in buf. */
1734 print_decimal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1735 unsigned len
, bool is_signed
,
1736 enum bfd_endian byte_order
)
1739 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1740 #define CARRY_LEFT( x ) ((x) % TEN)
1741 #define SHIFT( x ) ((x) << 4)
1742 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1743 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1748 int i
, j
, decimal_digits
;
1752 gdb::byte_vector negated_bytes
;
1754 && maybe_negate_by_bytes (valaddr
, len
, byte_order
, &negated_bytes
))
1756 fputs_filtered ("-", stream
);
1757 valaddr
= negated_bytes
.data ();
1760 /* Base-ten number is less than twice as many digits
1761 as the base 16 number, which is 2 digits per byte. */
1763 decimal_len
= len
* 2 * 2;
1764 std::vector
<unsigned char> digits (decimal_len
, 0);
1766 /* Ok, we have an unknown number of bytes of data to be printed in
1769 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1770 * decimalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1771 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1773 * The trick is that "digits" holds a base-10 number, but sometimes
1774 * the individual digits are > 10.
1776 * Outer loop is per nibble (hex digit) of input, from MSD end to
1779 decimal_digits
= 0; /* Number of decimal digits so far */
1780 p
= (byte_order
== BFD_ENDIAN_BIG
) ? valaddr
: valaddr
+ len
- 1;
1782 while ((byte_order
== BFD_ENDIAN_BIG
) ? (p
< valaddr
+ len
) : (p
>= valaddr
))
1785 * Multiply current base-ten number by 16 in place.
1786 * Each digit was between 0 and 9, now is between
1789 for (j
= 0; j
< decimal_digits
; j
++)
1791 digits
[j
] = SHIFT (digits
[j
]);
1794 /* Take the next nibble off the input and add it to what
1795 * we've got in the LSB position. Bottom 'digit' is now
1796 * between 0 and 159.
1798 * "flip" is used to run this loop twice for each byte.
1802 /* Take top nibble. */
1804 digits
[0] += HIGH_NIBBLE (*p
);
1809 /* Take low nibble and bump our pointer "p". */
1811 digits
[0] += LOW_NIBBLE (*p
);
1812 if (byte_order
== BFD_ENDIAN_BIG
)
1819 /* Re-decimalize. We have to do this often enough
1820 * that we don't overflow, but once per nibble is
1821 * overkill. Easier this way, though. Note that the
1822 * carry is often larger than 10 (e.g. max initial
1823 * carry out of lowest nibble is 15, could bubble all
1824 * the way up greater than 10). So we have to do
1825 * the carrying beyond the last current digit.
1828 for (j
= 0; j
< decimal_len
- 1; j
++)
1832 /* "/" won't handle an unsigned char with
1833 * a value that if signed would be negative.
1834 * So extend to longword int via "dummy".
1837 carry
= CARRY_OUT (dummy
);
1838 digits
[j
] = CARRY_LEFT (dummy
);
1840 if (j
>= decimal_digits
&& carry
== 0)
1843 * All higher digits are 0 and we
1844 * no longer have a carry.
1846 * Note: "j" is 0-based, "decimal_digits" is
1849 decimal_digits
= j
+ 1;
1855 /* Ok, now "digits" is the decimal representation, with
1856 the "decimal_digits" actual digits. Print! */
1858 for (i
= decimal_digits
- 1; i
> 0 && digits
[i
] == 0; --i
)
1863 fprintf_filtered (stream
, "%1d", digits
[i
]);
1867 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1870 print_hex_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1871 unsigned len
, enum bfd_endian byte_order
,
1876 fputs_filtered ("0x", stream
);
1877 if (byte_order
== BFD_ENDIAN_BIG
)
1883 /* Strip leading 0 bytes, but be sure to leave at least a
1884 single byte at the end. */
1885 for (; p
< valaddr
+ len
- 1 && !*p
; ++p
)
1889 const gdb_byte
*first
= p
;
1894 /* When not zero-padding, use a different format for the
1895 very first byte printed. */
1896 if (!zero_pad
&& p
== first
)
1897 fprintf_filtered (stream
, "%x", *p
);
1899 fprintf_filtered (stream
, "%02x", *p
);
1904 p
= valaddr
+ len
- 1;
1908 /* Strip leading 0 bytes, but be sure to leave at least a
1909 single byte at the end. */
1910 for (; p
>= valaddr
+ 1 && !*p
; --p
)
1914 const gdb_byte
*first
= p
;
1919 /* When not zero-padding, use a different format for the
1920 very first byte printed. */
1921 if (!zero_pad
&& p
== first
)
1922 fprintf_filtered (stream
, "%x", *p
);
1924 fprintf_filtered (stream
, "%02x", *p
);
1929 /* VALADDR points to a char integer of LEN bytes.
1930 Print it out in appropriate language form on stream.
1931 Omit any leading zero chars. */
1934 print_char_chars (struct ui_file
*stream
, struct type
*type
,
1935 const gdb_byte
*valaddr
,
1936 unsigned len
, enum bfd_endian byte_order
)
1940 if (byte_order
== BFD_ENDIAN_BIG
)
1943 while (p
< valaddr
+ len
- 1 && *p
== 0)
1946 while (p
< valaddr
+ len
)
1948 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1954 p
= valaddr
+ len
- 1;
1955 while (p
> valaddr
&& *p
== 0)
1958 while (p
>= valaddr
)
1960 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1966 /* Print function pointer with inferior address ADDRESS onto stdio
1970 print_function_pointer_address (const struct value_print_options
*options
,
1971 struct gdbarch
*gdbarch
,
1973 struct ui_file
*stream
)
1976 = gdbarch_convert_from_func_ptr_addr (gdbarch
, address
,
1977 current_top_target ());
1979 /* If the function pointer is represented by a description, print
1980 the address of the description. */
1981 if (options
->addressprint
&& func_addr
!= address
)
1983 fputs_filtered ("@", stream
);
1984 fputs_filtered (paddress (gdbarch
, address
), stream
);
1985 fputs_filtered (": ", stream
);
1987 print_address_demangle (options
, gdbarch
, func_addr
, stream
, demangle
);
1991 /* Print on STREAM using the given OPTIONS the index for the element
1992 at INDEX of an array whose index type is INDEX_TYPE. */
1995 maybe_print_array_index (struct type
*index_type
, LONGEST index
,
1996 struct ui_file
*stream
,
1997 const struct value_print_options
*options
)
1999 struct value
*index_value
;
2001 if (!options
->print_array_indexes
)
2004 index_value
= value_from_longest (index_type
, index
);
2006 LA_PRINT_ARRAY_INDEX (index_value
, stream
, options
);
2009 /* Called by various <lang>_val_print routines to print elements of an
2010 array in the form "<elem1>, <elem2>, <elem3>, ...".
2012 (FIXME?) Assumes array element separator is a comma, which is correct
2013 for all languages currently handled.
2014 (FIXME?) Some languages have a notation for repeated array elements,
2015 perhaps we should try to use that notation when appropriate. */
2018 val_print_array_elements (struct type
*type
,
2019 LONGEST embedded_offset
,
2020 CORE_ADDR address
, struct ui_file
*stream
,
2023 const struct value_print_options
*options
,
2026 unsigned int things_printed
= 0;
2028 struct type
*elttype
, *index_type
, *base_index_type
;
2030 /* Position of the array element we are examining to see
2031 whether it is repeated. */
2033 /* Number of repetitions we have detected so far. */
2035 LONGEST low_bound
, high_bound
;
2036 LONGEST low_pos
, high_pos
;
2038 elttype
= TYPE_TARGET_TYPE (type
);
2039 eltlen
= type_length_units (check_typedef (elttype
));
2040 index_type
= TYPE_INDEX_TYPE (type
);
2042 if (get_array_bounds (type
, &low_bound
, &high_bound
))
2044 if (TYPE_CODE (index_type
) == TYPE_CODE_RANGE
)
2045 base_index_type
= TYPE_TARGET_TYPE (index_type
);
2047 base_index_type
= index_type
;
2049 /* Non-contiguous enumerations types can by used as index types
2050 in some languages (e.g. Ada). In this case, the array length
2051 shall be computed from the positions of the first and last
2052 literal in the enumeration type, and not from the values
2053 of these literals. */
2054 if (!discrete_position (base_index_type
, low_bound
, &low_pos
)
2055 || !discrete_position (base_index_type
, high_bound
, &high_pos
))
2057 warning (_("unable to get positions in array, use bounds instead"));
2058 low_pos
= low_bound
;
2059 high_pos
= high_bound
;
2062 /* The array length should normally be HIGH_POS - LOW_POS + 1.
2063 But we have to be a little extra careful, because some languages
2064 such as Ada allow LOW_POS to be greater than HIGH_POS for
2065 empty arrays. In that situation, the array length is just zero,
2067 if (low_pos
> high_pos
)
2070 len
= high_pos
- low_pos
+ 1;
2074 warning (_("unable to get bounds of array, assuming null array"));
2079 annotate_array_section_begin (i
, elttype
);
2081 for (; i
< len
&& things_printed
< options
->print_max
; i
++)
2085 if (options
->prettyformat_arrays
)
2087 fprintf_filtered (stream
, ",\n");
2088 print_spaces_filtered (2 + 2 * recurse
, stream
);
2092 fprintf_filtered (stream
, ", ");
2095 wrap_here (n_spaces (2 + 2 * recurse
));
2096 maybe_print_array_index (index_type
, i
+ low_bound
,
2101 /* Only check for reps if repeat_count_threshold is not set to
2102 UINT_MAX (unlimited). */
2103 if (options
->repeat_count_threshold
< UINT_MAX
)
2106 && value_contents_eq (val
,
2107 embedded_offset
+ i
* eltlen
,
2118 if (reps
> options
->repeat_count_threshold
)
2120 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2121 address
, stream
, recurse
+ 1, val
, options
,
2123 annotate_elt_rep (reps
);
2124 fprintf_filtered (stream
, " %p[<repeats %u times>%p]",
2125 metadata_style
.style ().ptr (), reps
, nullptr);
2126 annotate_elt_rep_end ();
2129 things_printed
+= options
->repeat_count_threshold
;
2133 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2135 stream
, recurse
+ 1, val
, options
, current_language
);
2140 annotate_array_section_end ();
2143 fprintf_filtered (stream
, "...");
2147 /* Read LEN bytes of target memory at address MEMADDR, placing the
2148 results in GDB's memory at MYADDR. Returns a count of the bytes
2149 actually read, and optionally a target_xfer_status value in the
2150 location pointed to by ERRPTR if ERRPTR is non-null. */
2152 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
2153 function be eliminated. */
2156 partial_memory_read (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
2157 int len
, int *errptr
)
2159 int nread
; /* Number of bytes actually read. */
2160 int errcode
; /* Error from last read. */
2162 /* First try a complete read. */
2163 errcode
= target_read_memory (memaddr
, myaddr
, len
);
2171 /* Loop, reading one byte at a time until we get as much as we can. */
2172 for (errcode
= 0, nread
= 0; len
> 0 && errcode
== 0; nread
++, len
--)
2174 errcode
= target_read_memory (memaddr
++, myaddr
++, 1);
2176 /* If an error, the last read was unsuccessful, so adjust count. */
2189 /* Read a string from the inferior, at ADDR, with LEN characters of
2190 WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER
2191 will be set to a newly allocated buffer containing the string, and
2192 BYTES_READ will be set to the number of bytes read. Returns 0 on
2193 success, or a target_xfer_status on failure.
2195 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
2196 (including eventual NULs in the middle or end of the string).
2198 If LEN is -1, stops at the first null character (not necessarily
2199 the first null byte) up to a maximum of FETCHLIMIT characters. Set
2200 FETCHLIMIT to UINT_MAX to read as many characters as possible from
2203 Unless an exception is thrown, BUFFER will always be allocated, even on
2204 failure. In this case, some characters might have been read before the
2205 failure happened. Check BYTES_READ to recognize this situation.
2207 Note: There was a FIXME asking to make this code use target_read_string,
2208 but this function is more general (can read past null characters, up to
2209 given LEN). Besides, it is used much more often than target_read_string
2210 so it is more tested. Perhaps callers of target_read_string should use
2211 this function instead? */
2214 read_string (CORE_ADDR addr
, int len
, int width
, unsigned int fetchlimit
,
2215 enum bfd_endian byte_order
, gdb::unique_xmalloc_ptr
<gdb_byte
> *buffer
,
2218 int errcode
; /* Errno returned from bad reads. */
2219 unsigned int nfetch
; /* Chars to fetch / chars fetched. */
2220 gdb_byte
*bufptr
; /* Pointer to next available byte in
2223 /* Loop until we either have all the characters, or we encounter
2224 some error, such as bumping into the end of the address space. */
2226 buffer
->reset (nullptr);
2230 /* We want fetchlimit chars, so we might as well read them all in
2232 unsigned int fetchlen
= std::min ((unsigned) len
, fetchlimit
);
2234 buffer
->reset ((gdb_byte
*) xmalloc (fetchlen
* width
));
2235 bufptr
= buffer
->get ();
2237 nfetch
= partial_memory_read (addr
, bufptr
, fetchlen
* width
, &errcode
)
2239 addr
+= nfetch
* width
;
2240 bufptr
+= nfetch
* width
;
2244 unsigned long bufsize
= 0;
2245 unsigned int chunksize
; /* Size of each fetch, in chars. */
2246 int found_nul
; /* Non-zero if we found the nul char. */
2247 gdb_byte
*limit
; /* First location past end of fetch buffer. */
2250 /* We are looking for a NUL terminator to end the fetching, so we
2251 might as well read in blocks that are large enough to be efficient,
2252 but not so large as to be slow if fetchlimit happens to be large.
2253 So we choose the minimum of 8 and fetchlimit. We used to use 200
2254 instead of 8 but 200 is way too big for remote debugging over a
2256 chunksize
= std::min (8u, fetchlimit
);
2261 nfetch
= std::min ((unsigned long) chunksize
, fetchlimit
- bufsize
);
2263 if (*buffer
== NULL
)
2264 buffer
->reset ((gdb_byte
*) xmalloc (nfetch
* width
));
2266 buffer
->reset ((gdb_byte
*) xrealloc (buffer
->release (),
2267 (nfetch
+ bufsize
) * width
));
2269 bufptr
= buffer
->get () + bufsize
* width
;
2272 /* Read as much as we can. */
2273 nfetch
= partial_memory_read (addr
, bufptr
, nfetch
* width
, &errcode
)
2276 /* Scan this chunk for the null character that terminates the string
2277 to print. If found, we don't need to fetch any more. Note
2278 that bufptr is explicitly left pointing at the next character
2279 after the null character, or at the next character after the end
2282 limit
= bufptr
+ nfetch
* width
;
2283 while (bufptr
< limit
)
2287 c
= extract_unsigned_integer (bufptr
, width
, byte_order
);
2292 /* We don't care about any error which happened after
2293 the NUL terminator. */
2300 while (errcode
== 0 /* no error */
2301 && bufptr
- buffer
->get () < fetchlimit
* width
/* no overrun */
2302 && !found_nul
); /* haven't found NUL yet */
2305 { /* Length of string is really 0! */
2306 /* We always allocate *buffer. */
2307 buffer
->reset ((gdb_byte
*) xmalloc (1));
2308 bufptr
= buffer
->get ();
2312 /* bufptr and addr now point immediately beyond the last byte which we
2313 consider part of the string (including a '\0' which ends the string). */
2314 *bytes_read
= bufptr
- buffer
->get ();
2321 /* Return true if print_wchar can display W without resorting to a
2322 numeric escape, false otherwise. */
2325 wchar_printable (gdb_wchar_t w
)
2327 return (gdb_iswprint (w
)
2328 || w
== LCST ('\a') || w
== LCST ('\b')
2329 || w
== LCST ('\f') || w
== LCST ('\n')
2330 || w
== LCST ('\r') || w
== LCST ('\t')
2331 || w
== LCST ('\v'));
2334 /* A helper function that converts the contents of STRING to wide
2335 characters and then appends them to OUTPUT. */
2338 append_string_as_wide (const char *string
,
2339 struct obstack
*output
)
2341 for (; *string
; ++string
)
2343 gdb_wchar_t w
= gdb_btowc (*string
);
2344 obstack_grow (output
, &w
, sizeof (gdb_wchar_t
));
2348 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2349 original (target) bytes representing the character, ORIG_LEN is the
2350 number of valid bytes. WIDTH is the number of bytes in a base
2351 characters of the type. OUTPUT is an obstack to which wide
2352 characters are emitted. QUOTER is a (narrow) character indicating
2353 the style of quotes surrounding the character to be printed.
2354 NEED_ESCAPE is an in/out flag which is used to track numeric
2355 escapes across calls. */
2358 print_wchar (gdb_wint_t w
, const gdb_byte
*orig
,
2359 int orig_len
, int width
,
2360 enum bfd_endian byte_order
,
2361 struct obstack
*output
,
2362 int quoter
, int *need_escapep
)
2364 int need_escape
= *need_escapep
;
2368 /* iswprint implementation on Windows returns 1 for tab character.
2369 In order to avoid different printout on this host, we explicitly
2370 use wchar_printable function. */
2374 obstack_grow_wstr (output
, LCST ("\\a"));
2377 obstack_grow_wstr (output
, LCST ("\\b"));
2380 obstack_grow_wstr (output
, LCST ("\\f"));
2383 obstack_grow_wstr (output
, LCST ("\\n"));
2386 obstack_grow_wstr (output
, LCST ("\\r"));
2389 obstack_grow_wstr (output
, LCST ("\\t"));
2392 obstack_grow_wstr (output
, LCST ("\\v"));
2396 if (wchar_printable (w
) && (!need_escape
|| (!gdb_iswdigit (w
)
2398 && w
!= LCST ('9'))))
2400 gdb_wchar_t wchar
= w
;
2402 if (w
== gdb_btowc (quoter
) || w
== LCST ('\\'))
2403 obstack_grow_wstr (output
, LCST ("\\"));
2404 obstack_grow (output
, &wchar
, sizeof (gdb_wchar_t
));
2410 for (i
= 0; i
+ width
<= orig_len
; i
+= width
)
2415 value
= extract_unsigned_integer (&orig
[i
], width
,
2417 /* If the value fits in 3 octal digits, print it that
2418 way. Otherwise, print it as a hex escape. */
2420 xsnprintf (octal
, sizeof (octal
), "\\%.3o",
2421 (int) (value
& 0777));
2423 xsnprintf (octal
, sizeof (octal
), "\\x%lx", (long) value
);
2424 append_string_as_wide (octal
, output
);
2426 /* If we somehow have extra bytes, print them now. */
2427 while (i
< orig_len
)
2431 xsnprintf (octal
, sizeof (octal
), "\\%.3o", orig
[i
] & 0xff);
2432 append_string_as_wide (octal
, output
);
2443 /* Print the character C on STREAM as part of the contents of a
2444 literal string whose delimiter is QUOTER. ENCODING names the
2448 generic_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
2449 int quoter
, const char *encoding
)
2451 enum bfd_endian byte_order
2452 = type_byte_order (type
);
2454 int need_escape
= 0;
2456 c_buf
= (gdb_byte
*) alloca (TYPE_LENGTH (type
));
2457 pack_long (c_buf
, type
, c
);
2459 wchar_iterator
iter (c_buf
, TYPE_LENGTH (type
), encoding
, TYPE_LENGTH (type
));
2461 /* This holds the printable form of the wchar_t data. */
2462 auto_obstack wchar_buf
;
2468 const gdb_byte
*buf
;
2470 int print_escape
= 1;
2471 enum wchar_iterate_result result
;
2473 num_chars
= iter
.iterate (&result
, &chars
, &buf
, &buflen
);
2478 /* If all characters are printable, print them. Otherwise,
2479 we're going to have to print an escape sequence. We
2480 check all characters because we want to print the target
2481 bytes in the escape sequence, and we don't know character
2482 boundaries there. */
2486 for (i
= 0; i
< num_chars
; ++i
)
2487 if (!wchar_printable (chars
[i
]))
2495 for (i
= 0; i
< num_chars
; ++i
)
2496 print_wchar (chars
[i
], buf
, buflen
,
2497 TYPE_LENGTH (type
), byte_order
,
2498 &wchar_buf
, quoter
, &need_escape
);
2502 /* This handles the NUM_CHARS == 0 case as well. */
2504 print_wchar (gdb_WEOF
, buf
, buflen
, TYPE_LENGTH (type
),
2505 byte_order
, &wchar_buf
, quoter
, &need_escape
);
2508 /* The output in the host encoding. */
2509 auto_obstack output
;
2511 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2512 (gdb_byte
*) obstack_base (&wchar_buf
),
2513 obstack_object_size (&wchar_buf
),
2514 sizeof (gdb_wchar_t
), &output
, translit_char
);
2515 obstack_1grow (&output
, '\0');
2517 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2520 /* Return the repeat count of the next character/byte in ITER,
2521 storing the result in VEC. */
2524 count_next_character (wchar_iterator
*iter
,
2525 std::vector
<converted_character
> *vec
)
2527 struct converted_character
*current
;
2531 struct converted_character tmp
;
2535 = iter
->iterate (&tmp
.result
, &chars
, &tmp
.buf
, &tmp
.buflen
);
2536 if (tmp
.num_chars
> 0)
2538 gdb_assert (tmp
.num_chars
< MAX_WCHARS
);
2539 memcpy (tmp
.chars
, chars
, tmp
.num_chars
* sizeof (gdb_wchar_t
));
2541 vec
->push_back (tmp
);
2544 current
= &vec
->back ();
2546 /* Count repeated characters or bytes. */
2547 current
->repeat_count
= 1;
2548 if (current
->num_chars
== -1)
2556 struct converted_character d
;
2563 /* Get the next character. */
2564 d
.num_chars
= iter
->iterate (&d
.result
, &chars
, &d
.buf
, &d
.buflen
);
2566 /* If a character was successfully converted, save the character
2567 into the converted character. */
2568 if (d
.num_chars
> 0)
2570 gdb_assert (d
.num_chars
< MAX_WCHARS
);
2571 memcpy (d
.chars
, chars
, WCHAR_BUFLEN (d
.num_chars
));
2574 /* Determine if the current character is the same as this
2576 if (d
.num_chars
== current
->num_chars
&& d
.result
== current
->result
)
2578 /* There are two cases to consider:
2580 1) Equality of converted character (num_chars > 0)
2581 2) Equality of non-converted character (num_chars == 0) */
2582 if ((current
->num_chars
> 0
2583 && memcmp (current
->chars
, d
.chars
,
2584 WCHAR_BUFLEN (current
->num_chars
)) == 0)
2585 || (current
->num_chars
== 0
2586 && current
->buflen
== d
.buflen
2587 && memcmp (current
->buf
, d
.buf
, current
->buflen
) == 0))
2588 ++current
->repeat_count
;
2596 /* Push this next converted character onto the result vector. */
2597 repeat
= current
->repeat_count
;
2603 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2604 character to use with string output. WIDTH is the size of the output
2605 character type. BYTE_ORDER is the target byte order. OPTIONS
2606 is the user's print options. */
2609 print_converted_chars_to_obstack (struct obstack
*obstack
,
2610 const std::vector
<converted_character
> &chars
,
2611 int quote_char
, int width
,
2612 enum bfd_endian byte_order
,
2613 const struct value_print_options
*options
)
2616 const converted_character
*elem
;
2617 enum {START
, SINGLE
, REPEAT
, INCOMPLETE
, FINISH
} state
, last
;
2618 gdb_wchar_t wide_quote_char
= gdb_btowc (quote_char
);
2619 int need_escape
= 0;
2621 /* Set the start state. */
2623 last
= state
= START
;
2631 /* Nothing to do. */
2638 /* We are outputting a single character
2639 (< options->repeat_count_threshold). */
2643 /* We were outputting some other type of content, so we
2644 must output and a comma and a quote. */
2646 obstack_grow_wstr (obstack
, LCST (", "));
2647 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2649 /* Output the character. */
2650 for (j
= 0; j
< elem
->repeat_count
; ++j
)
2652 if (elem
->result
== wchar_iterate_ok
)
2653 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2654 byte_order
, obstack
, quote_char
, &need_escape
);
2656 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2657 byte_order
, obstack
, quote_char
, &need_escape
);
2666 /* We are outputting a character with a repeat count
2667 greater than options->repeat_count_threshold. */
2671 /* We were outputting a single string. Terminate the
2673 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2676 obstack_grow_wstr (obstack
, LCST (", "));
2678 /* Output the character and repeat string. */
2679 obstack_grow_wstr (obstack
, LCST ("'"));
2680 if (elem
->result
== wchar_iterate_ok
)
2681 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2682 byte_order
, obstack
, quote_char
, &need_escape
);
2684 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2685 byte_order
, obstack
, quote_char
, &need_escape
);
2686 obstack_grow_wstr (obstack
, LCST ("'"));
2687 std::string s
= string_printf (_(" <repeats %u times>"),
2688 elem
->repeat_count
);
2689 for (j
= 0; s
[j
]; ++j
)
2691 gdb_wchar_t w
= gdb_btowc (s
[j
]);
2692 obstack_grow (obstack
, &w
, sizeof (gdb_wchar_t
));
2698 /* We are outputting an incomplete sequence. */
2701 /* If we were outputting a string of SINGLE characters,
2702 terminate the quote. */
2703 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2706 obstack_grow_wstr (obstack
, LCST (", "));
2708 /* Output the incomplete sequence string. */
2709 obstack_grow_wstr (obstack
, LCST ("<incomplete sequence "));
2710 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
, byte_order
,
2711 obstack
, 0, &need_escape
);
2712 obstack_grow_wstr (obstack
, LCST (">"));
2714 /* We do not attempt to output anything after this. */
2719 /* All done. If we were outputting a string of SINGLE
2720 characters, the string must be terminated. Otherwise,
2721 REPEAT and INCOMPLETE are always left properly terminated. */
2723 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2728 /* Get the next element and state. */
2730 if (state
!= FINISH
)
2732 elem
= &chars
[idx
++];
2733 switch (elem
->result
)
2735 case wchar_iterate_ok
:
2736 case wchar_iterate_invalid
:
2737 if (elem
->repeat_count
> options
->repeat_count_threshold
)
2743 case wchar_iterate_incomplete
:
2747 case wchar_iterate_eof
:
2755 /* Print the character string STRING, printing at most LENGTH
2756 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2757 the type of each character. OPTIONS holds the printing options;
2758 printing stops early if the number hits print_max; repeat counts
2759 are printed as appropriate. Print ellipses at the end if we had to
2760 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2761 QUOTE_CHAR is the character to print at each end of the string. If
2762 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2766 generic_printstr (struct ui_file
*stream
, struct type
*type
,
2767 const gdb_byte
*string
, unsigned int length
,
2768 const char *encoding
, int force_ellipses
,
2769 int quote_char
, int c_style_terminator
,
2770 const struct value_print_options
*options
)
2772 enum bfd_endian byte_order
= type_byte_order (type
);
2774 int width
= TYPE_LENGTH (type
);
2776 struct converted_character
*last
;
2780 unsigned long current_char
= 1;
2782 for (i
= 0; current_char
; ++i
)
2785 current_char
= extract_unsigned_integer (string
+ i
* width
,
2791 /* If the string was not truncated due to `set print elements', and
2792 the last byte of it is a null, we don't print that, in
2793 traditional C style. */
2794 if (c_style_terminator
2797 && (extract_unsigned_integer (string
+ (length
- 1) * width
,
2798 width
, byte_order
) == 0))
2803 fputs_filtered ("\"\"", stream
);
2807 /* Arrange to iterate over the characters, in wchar_t form. */
2808 wchar_iterator
iter (string
, length
* width
, encoding
, width
);
2809 std::vector
<converted_character
> converted_chars
;
2811 /* Convert characters until the string is over or the maximum
2812 number of printed characters has been reached. */
2814 while (i
< options
->print_max
)
2820 /* Grab the next character and repeat count. */
2821 r
= count_next_character (&iter
, &converted_chars
);
2823 /* If less than zero, the end of the input string was reached. */
2827 /* Otherwise, add the count to the total print count and get
2828 the next character. */
2832 /* Get the last element and determine if the entire string was
2834 last
= &converted_chars
.back ();
2835 finished
= (last
->result
== wchar_iterate_eof
);
2837 /* Ensure that CONVERTED_CHARS is terminated. */
2838 last
->result
= wchar_iterate_eof
;
2840 /* WCHAR_BUF is the obstack we use to represent the string in
2842 auto_obstack wchar_buf
;
2844 /* Print the output string to the obstack. */
2845 print_converted_chars_to_obstack (&wchar_buf
, converted_chars
, quote_char
,
2846 width
, byte_order
, options
);
2848 if (force_ellipses
|| !finished
)
2849 obstack_grow_wstr (&wchar_buf
, LCST ("..."));
2851 /* OUTPUT is where we collect `char's for printing. */
2852 auto_obstack output
;
2854 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2855 (gdb_byte
*) obstack_base (&wchar_buf
),
2856 obstack_object_size (&wchar_buf
),
2857 sizeof (gdb_wchar_t
), &output
, translit_char
);
2858 obstack_1grow (&output
, '\0');
2860 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2863 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2864 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2865 stops at the first null byte, otherwise printing proceeds (including null
2866 bytes) until either print_max or LEN characters have been printed,
2867 whichever is smaller. ENCODING is the name of the string's
2868 encoding. It can be NULL, in which case the target encoding is
2872 val_print_string (struct type
*elttype
, const char *encoding
,
2873 CORE_ADDR addr
, int len
,
2874 struct ui_file
*stream
,
2875 const struct value_print_options
*options
)
2877 int force_ellipsis
= 0; /* Force ellipsis to be printed if nonzero. */
2878 int err
; /* Non-zero if we got a bad read. */
2879 int found_nul
; /* Non-zero if we found the nul char. */
2880 unsigned int fetchlimit
; /* Maximum number of chars to print. */
2882 gdb::unique_xmalloc_ptr
<gdb_byte
> buffer
; /* Dynamically growable fetch buffer. */
2883 struct gdbarch
*gdbarch
= get_type_arch (elttype
);
2884 enum bfd_endian byte_order
= type_byte_order (elttype
);
2885 int width
= TYPE_LENGTH (elttype
);
2887 /* First we need to figure out the limit on the number of characters we are
2888 going to attempt to fetch and print. This is actually pretty simple. If
2889 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2890 LEN is -1, then the limit is print_max. This is true regardless of
2891 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2892 because finding the null byte (or available memory) is what actually
2893 limits the fetch. */
2895 fetchlimit
= (len
== -1 ? options
->print_max
: std::min ((unsigned) len
,
2896 options
->print_max
));
2898 err
= read_string (addr
, len
, width
, fetchlimit
, byte_order
,
2899 &buffer
, &bytes_read
);
2903 /* We now have either successfully filled the buffer to fetchlimit,
2904 or terminated early due to an error or finding a null char when
2907 /* Determine found_nul by looking at the last character read. */
2909 if (bytes_read
>= width
)
2910 found_nul
= extract_unsigned_integer (buffer
.get () + bytes_read
- width
,
2911 width
, byte_order
) == 0;
2912 if (len
== -1 && !found_nul
)
2916 /* We didn't find a NUL terminator we were looking for. Attempt
2917 to peek at the next character. If not successful, or it is not
2918 a null byte, then force ellipsis to be printed. */
2920 peekbuf
= (gdb_byte
*) alloca (width
);
2922 if (target_read_memory (addr
, peekbuf
, width
) == 0
2923 && extract_unsigned_integer (peekbuf
, width
, byte_order
) != 0)
2926 else if ((len
>= 0 && err
!= 0) || (len
> bytes_read
/ width
))
2928 /* Getting an error when we have a requested length, or fetching less
2929 than the number of characters actually requested, always make us
2934 /* If we get an error before fetching anything, don't print a string.
2935 But if we fetch something and then get an error, print the string
2936 and then the error message. */
2937 if (err
== 0 || bytes_read
> 0)
2939 LA_PRINT_STRING (stream
, elttype
, buffer
.get (), bytes_read
/ width
,
2940 encoding
, force_ellipsis
, options
);
2945 std::string str
= memory_error_message (TARGET_XFER_E_IO
, gdbarch
, addr
);
2947 fprintf_filtered (stream
, _("<error: %ps>"),
2948 styled_string (metadata_style
.style (),
2952 return (bytes_read
/ width
);
2955 /* Handle 'show print max-depth'. */
2958 show_print_max_depth (struct ui_file
*file
, int from_tty
,
2959 struct cmd_list_element
*c
, const char *value
)
2961 fprintf_filtered (file
, _("Maximum print depth is %s.\n"), value
);
2965 /* The 'set input-radix' command writes to this auxiliary variable.
2966 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2967 it is left unchanged. */
2969 static unsigned input_radix_1
= 10;
2971 /* Validate an input or output radix setting, and make sure the user
2972 knows what they really did here. Radix setting is confusing, e.g.
2973 setting the input radix to "10" never changes it! */
2976 set_input_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
2978 set_input_radix_1 (from_tty
, input_radix_1
);
2982 set_input_radix_1 (int from_tty
, unsigned radix
)
2984 /* We don't currently disallow any input radix except 0 or 1, which don't
2985 make any mathematical sense. In theory, we can deal with any input
2986 radix greater than 1, even if we don't have unique digits for every
2987 value from 0 to radix-1, but in practice we lose on large radix values.
2988 We should either fix the lossage or restrict the radix range more.
2993 input_radix_1
= input_radix
;
2994 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2997 input_radix_1
= input_radix
= radix
;
3000 printf_filtered (_("Input radix now set to "
3001 "decimal %u, hex %x, octal %o.\n"),
3002 radix
, radix
, radix
);
3006 /* The 'set output-radix' command writes to this auxiliary variable.
3007 If the requested radix is valid, OUTPUT_RADIX is updated,
3008 otherwise, it is left unchanged. */
3010 static unsigned output_radix_1
= 10;
3013 set_output_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
3015 set_output_radix_1 (from_tty
, output_radix_1
);
3019 set_output_radix_1 (int from_tty
, unsigned radix
)
3021 /* Validate the radix and disallow ones that we aren't prepared to
3022 handle correctly, leaving the radix unchanged. */
3026 user_print_options
.output_format
= 'x'; /* hex */
3029 user_print_options
.output_format
= 0; /* decimal */
3032 user_print_options
.output_format
= 'o'; /* octal */
3035 output_radix_1
= output_radix
;
3036 error (_("Unsupported output radix ``decimal %u''; "
3037 "output radix unchanged."),
3040 output_radix_1
= output_radix
= radix
;
3043 printf_filtered (_("Output radix now set to "
3044 "decimal %u, hex %x, octal %o.\n"),
3045 radix
, radix
, radix
);
3049 /* Set both the input and output radix at once. Try to set the output radix
3050 first, since it has the most restrictive range. An radix that is valid as
3051 an output radix is also valid as an input radix.
3053 It may be useful to have an unusual input radix. If the user wishes to
3054 set an input radix that is not valid as an output radix, he needs to use
3055 the 'set input-radix' command. */
3058 set_radix (const char *arg
, int from_tty
)
3062 radix
= (arg
== NULL
) ? 10 : parse_and_eval_long (arg
);
3063 set_output_radix_1 (0, radix
);
3064 set_input_radix_1 (0, radix
);
3067 printf_filtered (_("Input and output radices now set to "
3068 "decimal %u, hex %x, octal %o.\n"),
3069 radix
, radix
, radix
);
3073 /* Show both the input and output radices. */
3076 show_radix (const char *arg
, int from_tty
)
3080 if (input_radix
== output_radix
)
3082 printf_filtered (_("Input and output radices set to "
3083 "decimal %u, hex %x, octal %o.\n"),
3084 input_radix
, input_radix
, input_radix
);
3088 printf_filtered (_("Input radix set to decimal "
3089 "%u, hex %x, octal %o.\n"),
3090 input_radix
, input_radix
, input_radix
);
3091 printf_filtered (_("Output radix set to decimal "
3092 "%u, hex %x, octal %o.\n"),
3093 output_radix
, output_radix
, output_radix
);
3100 set_print (const char *arg
, int from_tty
)
3103 "\"set print\" must be followed by the name of a print subcommand.\n");
3104 help_list (setprintlist
, "set print ", all_commands
, gdb_stdout
);
3108 show_print (const char *args
, int from_tty
)
3110 cmd_show_list (showprintlist
, from_tty
, "");
3114 set_print_raw (const char *arg
, int from_tty
)
3117 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
3118 help_list (setprintrawlist
, "set print raw ", all_commands
, gdb_stdout
);
3122 show_print_raw (const char *args
, int from_tty
)
3124 cmd_show_list (showprintrawlist
, from_tty
, "");
3127 /* Controls printing of vtbl's. */
3129 show_vtblprint (struct ui_file
*file
, int from_tty
,
3130 struct cmd_list_element
*c
, const char *value
)
3132 fprintf_filtered (file
, _("\
3133 Printing of C++ virtual function tables is %s.\n"),
3137 /* Controls looking up an object's derived type using what we find in
3140 show_objectprint (struct ui_file
*file
, int from_tty
,
3141 struct cmd_list_element
*c
,
3144 fprintf_filtered (file
, _("\
3145 Printing of object's derived type based on vtable info is %s.\n"),
3150 show_static_field_print (struct ui_file
*file
, int from_tty
,
3151 struct cmd_list_element
*c
,
3154 fprintf_filtered (file
,
3155 _("Printing of C++ static members is %s.\n"),
3161 /* A couple typedefs to make writing the options a bit more
3163 using boolean_option_def
3164 = gdb::option::boolean_option_def
<value_print_options
>;
3165 using uinteger_option_def
3166 = gdb::option::uinteger_option_def
<value_print_options
>;
3167 using zuinteger_unlimited_option_def
3168 = gdb::option::zuinteger_unlimited_option_def
<value_print_options
>;
3170 /* Definitions of options for the "print" and "compile print"
3172 static const gdb::option::option_def value_print_option_defs
[] = {
3174 boolean_option_def
{
3176 [] (value_print_options
*opt
) { return &opt
->addressprint
; },
3177 show_addressprint
, /* show_cmd_cb */
3178 N_("Set printing of addresses."),
3179 N_("Show printing of addresses."),
3180 NULL
, /* help_doc */
3183 boolean_option_def
{
3185 [] (value_print_options
*opt
) { return &opt
->prettyformat_arrays
; },
3186 show_prettyformat_arrays
, /* show_cmd_cb */
3187 N_("Set pretty formatting of arrays."),
3188 N_("Show pretty formatting of arrays."),
3189 NULL
, /* help_doc */
3192 boolean_option_def
{
3194 [] (value_print_options
*opt
) { return &opt
->print_array_indexes
; },
3195 show_print_array_indexes
, /* show_cmd_cb */
3196 N_("Set printing of array indexes."),
3197 N_("Show printing of array indexes."),
3198 NULL
, /* help_doc */
3201 uinteger_option_def
{
3203 [] (value_print_options
*opt
) { return &opt
->print_max
; },
3204 show_print_max
, /* show_cmd_cb */
3205 N_("Set limit on string chars or array elements to print."),
3206 N_("Show limit on string chars or array elements to print."),
3207 N_("\"unlimited\" causes there to be no limit."),
3210 zuinteger_unlimited_option_def
{
3212 [] (value_print_options
*opt
) { return &opt
->max_depth
; },
3213 show_print_max_depth
, /* show_cmd_cb */
3214 N_("Set maximum print depth for nested structures, unions and arrays."),
3215 N_("Show maximum print depth for nested structures, unions, and arrays."),
3216 N_("When structures, unions, or arrays are nested beyond this depth then they\n\
3217 will be replaced with either '{...}' or '(...)' depending on the language.\n\
3218 Use \"unlimited\" to print the complete structure.")
3221 boolean_option_def
{
3223 [] (value_print_options
*opt
) { return &opt
->stop_print_at_null
; },
3224 show_stop_print_at_null
, /* show_cmd_cb */
3225 N_("Set printing of char arrays to stop at first null char."),
3226 N_("Show printing of char arrays to stop at first null char."),
3227 NULL
, /* help_doc */
3230 boolean_option_def
{
3232 [] (value_print_options
*opt
) { return &opt
->objectprint
; },
3233 show_objectprint
, /* show_cmd_cb */
3234 _("Set printing of C++ virtual function tables."),
3235 _("Show printing of C++ virtual function tables."),
3236 NULL
, /* help_doc */
3239 boolean_option_def
{
3241 [] (value_print_options
*opt
) { return &opt
->prettyformat_structs
; },
3242 show_prettyformat_structs
, /* show_cmd_cb */
3243 N_("Set pretty formatting of structures."),
3244 N_("Show pretty formatting of structures."),
3245 NULL
, /* help_doc */
3248 boolean_option_def
{
3250 [] (value_print_options
*opt
) { return &opt
->raw
; },
3251 NULL
, /* show_cmd_cb */
3252 N_("Set whether to print values in raw form."),
3253 N_("Show whether to print values in raw form."),
3254 N_("If set, values are printed in raw form, bypassing any\n\
3255 pretty-printers for that value.")
3258 uinteger_option_def
{
3260 [] (value_print_options
*opt
) { return &opt
->repeat_count_threshold
; },
3261 show_repeat_count_threshold
, /* show_cmd_cb */
3262 N_("Set threshold for repeated print elements."),
3263 N_("Show threshold for repeated print elements."),
3264 N_("\"unlimited\" causes all elements to be individually printed."),
3267 boolean_option_def
{
3269 [] (value_print_options
*opt
) { return &opt
->static_field_print
; },
3270 show_static_field_print
, /* show_cmd_cb */
3271 N_("Set printing of C++ static members."),
3272 N_("Show printing of C++ static members."),
3273 NULL
, /* help_doc */
3276 boolean_option_def
{
3278 [] (value_print_options
*opt
) { return &opt
->symbol_print
; },
3279 show_symbol_print
, /* show_cmd_cb */
3280 N_("Set printing of symbol names when printing pointers."),
3281 N_("Show printing of symbol names when printing pointers."),
3282 NULL
, /* help_doc */
3285 boolean_option_def
{
3287 [] (value_print_options
*opt
) { return &opt
->unionprint
; },
3288 show_unionprint
, /* show_cmd_cb */
3289 N_("Set printing of unions interior to structures."),
3290 N_("Show printing of unions interior to structures."),
3291 NULL
, /* help_doc */
3294 boolean_option_def
{
3296 [] (value_print_options
*opt
) { return &opt
->vtblprint
; },
3297 show_vtblprint
, /* show_cmd_cb */
3298 N_("Set printing of C++ virtual function tables."),
3299 N_("Show printing of C++ virtual function tables."),
3300 NULL
, /* help_doc */
3304 /* See valprint.h. */
3306 gdb::option::option_def_group
3307 make_value_print_options_def_group (value_print_options
*opts
)
3309 return {{value_print_option_defs
}, opts
};
3312 void _initialize_valprint ();
3314 _initialize_valprint ()
3316 cmd_list_element
*cmd
;
3318 add_prefix_cmd ("print", no_class
, set_print
,
3319 _("Generic command for setting how things print."),
3320 &setprintlist
, "set print ", 0, &setlist
);
3321 add_alias_cmd ("p", "print", no_class
, 1, &setlist
);
3322 /* Prefer set print to set prompt. */
3323 add_alias_cmd ("pr", "print", no_class
, 1, &setlist
);
3325 add_prefix_cmd ("print", no_class
, show_print
,
3326 _("Generic command for showing print settings."),
3327 &showprintlist
, "show print ", 0, &showlist
);
3328 add_alias_cmd ("p", "print", no_class
, 1, &showlist
);
3329 add_alias_cmd ("pr", "print", no_class
, 1, &showlist
);
3331 cmd
= add_prefix_cmd ("raw", no_class
, set_print_raw
,
3333 Generic command for setting what things to print in \"raw\" mode."),
3334 &setprintrawlist
, "set print raw ", 0,
3336 deprecate_cmd (cmd
, nullptr);
3338 cmd
= add_prefix_cmd ("raw", no_class
, show_print_raw
,
3339 _("Generic command for showing \"print raw\" settings."),
3340 &showprintrawlist
, "show print raw ", 0,
3342 deprecate_cmd (cmd
, nullptr);
3344 gdb::option::add_setshow_cmds_for_options
3345 (class_support
, &user_print_options
, value_print_option_defs
,
3346 &setprintlist
, &showprintlist
);
3348 add_setshow_zuinteger_cmd ("input-radix", class_support
, &input_radix_1
,
3350 Set default input radix for entering numbers."), _("\
3351 Show default input radix for entering numbers."), NULL
,
3354 &setlist
, &showlist
);
3356 add_setshow_zuinteger_cmd ("output-radix", class_support
, &output_radix_1
,
3358 Set default output radix for printing of values."), _("\
3359 Show default output radix for printing of values."), NULL
,
3362 &setlist
, &showlist
);
3364 /* The "set radix" and "show radix" commands are special in that
3365 they are like normal set and show commands but allow two normally
3366 independent variables to be either set or shown with a single
3367 command. So the usual deprecated_add_set_cmd() and [deleted]
3368 add_show_from_set() commands aren't really appropriate. */
3369 /* FIXME: i18n: With the new add_setshow_integer command, that is no
3370 longer true - show can display anything. */
3371 add_cmd ("radix", class_support
, set_radix
, _("\
3372 Set default input and output number radices.\n\
3373 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
3374 Without an argument, sets both radices back to the default value of 10."),
3376 add_cmd ("radix", class_support
, show_radix
, _("\
3377 Show the default input and output number radices.\n\
3378 Use 'show input-radix' or 'show output-radix' to independently show each."),