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 /* See valprint.h. */
1242 common_val_print_checked (struct value
*val
, struct ui_file
*stream
,
1244 const struct value_print_options
*options
,
1245 const struct language_defn
*language
)
1247 if (!value_check_printable (val
, stream
, options
))
1249 common_val_print (val
, stream
, recurse
, options
, language
);
1252 /* Print on stream STREAM the value VAL according to OPTIONS. The value
1253 is printed using the current_language syntax. */
1256 value_print (struct value
*val
, struct ui_file
*stream
,
1257 const struct value_print_options
*options
)
1259 scoped_value_mark free_values
;
1261 if (!value_check_printable (val
, stream
, options
))
1267 = apply_ext_lang_val_pretty_printer (value_type (val
),
1268 value_embedded_offset (val
),
1269 value_address (val
),
1271 val
, options
, current_language
);
1277 LA_VALUE_PRINT (val
, stream
, options
);
1281 val_print_type_code_flags (struct type
*type
, const gdb_byte
*valaddr
,
1282 struct ui_file
*stream
)
1284 ULONGEST val
= unpack_long (type
, valaddr
);
1285 int field
, nfields
= TYPE_NFIELDS (type
);
1286 struct gdbarch
*gdbarch
= get_type_arch (type
);
1287 struct type
*bool_type
= builtin_type (gdbarch
)->builtin_bool
;
1289 fputs_filtered ("[", stream
);
1290 for (field
= 0; field
< nfields
; field
++)
1292 if (TYPE_FIELD_NAME (type
, field
)[0] != '\0')
1294 struct type
*field_type
= TYPE_FIELD_TYPE (type
, field
);
1296 if (field_type
== bool_type
1297 /* We require boolean types here to be one bit wide. This is a
1298 problematic place to notify the user of an internal error
1299 though. Instead just fall through and print the field as an
1301 && TYPE_FIELD_BITSIZE (type
, field
) == 1)
1303 if (val
& ((ULONGEST
)1 << TYPE_FIELD_BITPOS (type
, field
)))
1306 styled_string (variable_name_style
.style (),
1307 TYPE_FIELD_NAME (type
, field
)));
1311 unsigned field_len
= TYPE_FIELD_BITSIZE (type
, field
);
1313 = val
>> (TYPE_FIELD_BITPOS (type
, field
) - field_len
+ 1);
1315 if (field_len
< sizeof (ULONGEST
) * TARGET_CHAR_BIT
)
1316 field_val
&= ((ULONGEST
) 1 << field_len
) - 1;
1317 fprintf_filtered (stream
, " %ps=",
1318 styled_string (variable_name_style
.style (),
1319 TYPE_FIELD_NAME (type
, field
)));
1320 if (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
)
1321 generic_val_print_enum_1 (field_type
, field_val
, stream
);
1323 print_longest (stream
, 'd', 0, field_val
);
1327 fputs_filtered (" ]", stream
);
1330 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1331 according to OPTIONS and SIZE on STREAM. Format i is not supported
1334 This is how the elements of an array or structure are printed
1338 val_print_scalar_formatted (struct type
*type
,
1339 LONGEST embedded_offset
,
1341 const struct value_print_options
*options
,
1343 struct ui_file
*stream
)
1345 struct gdbarch
*arch
= get_type_arch (type
);
1346 int unit_size
= gdbarch_addressable_memory_unit_size (arch
);
1348 gdb_assert (val
!= NULL
);
1350 /* If we get here with a string format, try again without it. Go
1351 all the way back to the language printers, which may call us
1353 if (options
->format
== 's')
1355 struct value_print_options opts
= *options
;
1358 val_print (type
, embedded_offset
, 0, stream
, 0, val
, &opts
,
1363 /* value_contents_for_printing fetches all VAL's contents. They are
1364 needed to check whether VAL is optimized-out or unavailable
1366 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
1368 /* A scalar object that does not have all bits available can't be
1369 printed, because all bits contribute to its representation. */
1370 if (value_bits_any_optimized_out (val
,
1371 TARGET_CHAR_BIT
* embedded_offset
,
1372 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
1373 val_print_optimized_out (val
, stream
);
1374 else if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
1375 val_print_unavailable (stream
);
1377 print_scalar_formatted (valaddr
+ embedded_offset
* unit_size
, type
,
1378 options
, size
, stream
);
1381 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1382 The raison d'etre of this function is to consolidate printing of
1383 LONG_LONG's into this one function. The format chars b,h,w,g are
1384 from print_scalar_formatted(). Numbers are printed using C
1387 USE_C_FORMAT means to use C format in all cases. Without it,
1388 'o' and 'x' format do not include the standard C radix prefix
1391 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1392 and was intended to request formatting according to the current
1393 language and would be used for most integers that GDB prints. The
1394 exceptional cases were things like protocols where the format of
1395 the integer is a protocol thing, not a user-visible thing). The
1396 parameter remains to preserve the information of what things might
1397 be printed with language-specific format, should we ever resurrect
1401 print_longest (struct ui_file
*stream
, int format
, int use_c_format
,
1409 val
= int_string (val_long
, 10, 1, 0, 1); break;
1411 val
= int_string (val_long
, 10, 0, 0, 1); break;
1413 val
= int_string (val_long
, 16, 0, 0, use_c_format
); break;
1415 val
= int_string (val_long
, 16, 0, 2, 1); break;
1417 val
= int_string (val_long
, 16, 0, 4, 1); break;
1419 val
= int_string (val_long
, 16, 0, 8, 1); break;
1421 val
= int_string (val_long
, 16, 0, 16, 1); break;
1424 val
= int_string (val_long
, 8, 0, 0, use_c_format
); break;
1426 internal_error (__FILE__
, __LINE__
,
1427 _("failed internal consistency check"));
1429 fputs_filtered (val
, stream
);
1432 /* This used to be a macro, but I don't think it is called often enough
1433 to merit such treatment. */
1434 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1435 arguments to a function, number in a value history, register number, etc.)
1436 where the value must not be larger than can fit in an int. */
1439 longest_to_int (LONGEST arg
)
1441 /* Let the compiler do the work. */
1442 int rtnval
= (int) arg
;
1444 /* Check for overflows or underflows. */
1445 if (sizeof (LONGEST
) > sizeof (int))
1449 error (_("Value out of range."));
1455 /* Print a floating point value of floating-point type TYPE,
1456 pointed to in GDB by VALADDR, on STREAM. */
1459 print_floating (const gdb_byte
*valaddr
, struct type
*type
,
1460 struct ui_file
*stream
)
1462 std::string str
= target_float_to_string (valaddr
, type
);
1463 fputs_filtered (str
.c_str (), stream
);
1467 print_binary_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1468 unsigned len
, enum bfd_endian byte_order
, bool zero_pad
)
1473 bool seen_a_one
= false;
1475 /* Declared "int" so it will be signed.
1476 This ensures that right shift will shift in zeros. */
1478 const int mask
= 0x080;
1480 if (byte_order
== BFD_ENDIAN_BIG
)
1486 /* Every byte has 8 binary characters; peel off
1487 and print from the MSB end. */
1489 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1491 if (*p
& (mask
>> i
))
1496 if (zero_pad
|| seen_a_one
|| b
== '1')
1497 fputc_filtered (b
, stream
);
1505 for (p
= valaddr
+ len
- 1;
1509 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1511 if (*p
& (mask
>> i
))
1516 if (zero_pad
|| seen_a_one
|| b
== '1')
1517 fputc_filtered (b
, stream
);
1524 /* When not zero-padding, ensure that something is printed when the
1526 if (!zero_pad
&& !seen_a_one
)
1527 fputc_filtered ('0', stream
);
1530 /* A helper for print_octal_chars that emits a single octal digit,
1531 optionally suppressing it if is zero and updating SEEN_A_ONE. */
1534 emit_octal_digit (struct ui_file
*stream
, bool *seen_a_one
, int digit
)
1536 if (*seen_a_one
|| digit
!= 0)
1537 fprintf_filtered (stream
, "%o", digit
);
1542 /* VALADDR points to an integer of LEN bytes.
1543 Print it in octal on stream or format it in buf. */
1546 print_octal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1547 unsigned len
, enum bfd_endian byte_order
)
1550 unsigned char octa1
, octa2
, octa3
, carry
;
1553 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1554 * the extra bits, which cycle every three bytes:
1556 * Byte side: 0 1 2 3
1558 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1560 * Octal side: 0 1 carry 3 4 carry ...
1562 * Cycle number: 0 1 2
1564 * But of course we are printing from the high side, so we have to
1565 * figure out where in the cycle we are so that we end up with no
1566 * left over bits at the end.
1568 #define BITS_IN_OCTAL 3
1569 #define HIGH_ZERO 0340
1570 #define LOW_ZERO 0034
1571 #define CARRY_ZERO 0003
1572 static_assert (HIGH_ZERO
+ LOW_ZERO
+ CARRY_ZERO
== 0xff,
1573 "cycle zero constants are wrong");
1574 #define HIGH_ONE 0200
1575 #define MID_ONE 0160
1576 #define LOW_ONE 0016
1577 #define CARRY_ONE 0001
1578 static_assert (HIGH_ONE
+ MID_ONE
+ LOW_ONE
+ CARRY_ONE
== 0xff,
1579 "cycle one constants are wrong");
1580 #define HIGH_TWO 0300
1581 #define MID_TWO 0070
1582 #define LOW_TWO 0007
1583 static_assert (HIGH_TWO
+ MID_TWO
+ LOW_TWO
== 0xff,
1584 "cycle two constants are wrong");
1586 /* For 32 we start in cycle 2, with two bits and one bit carry;
1587 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1589 cycle
= (len
* HOST_CHAR_BIT
) % BITS_IN_OCTAL
;
1592 fputs_filtered ("0", stream
);
1593 bool seen_a_one
= false;
1594 if (byte_order
== BFD_ENDIAN_BIG
)
1603 /* No carry in, carry out two bits. */
1605 octa1
= (HIGH_ZERO
& *p
) >> 5;
1606 octa2
= (LOW_ZERO
& *p
) >> 2;
1607 carry
= (CARRY_ZERO
& *p
);
1608 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1609 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1613 /* Carry in two bits, carry out one bit. */
1615 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1616 octa2
= (MID_ONE
& *p
) >> 4;
1617 octa3
= (LOW_ONE
& *p
) >> 1;
1618 carry
= (CARRY_ONE
& *p
);
1619 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1620 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1621 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1625 /* Carry in one bit, no carry out. */
1627 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1628 octa2
= (MID_TWO
& *p
) >> 3;
1629 octa3
= (LOW_TWO
& *p
);
1631 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1632 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1633 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1637 error (_("Internal error in octal conversion;"));
1641 cycle
= cycle
% BITS_IN_OCTAL
;
1646 for (p
= valaddr
+ len
- 1;
1653 /* Carry out, no carry in */
1655 octa1
= (HIGH_ZERO
& *p
) >> 5;
1656 octa2
= (LOW_ZERO
& *p
) >> 2;
1657 carry
= (CARRY_ZERO
& *p
);
1658 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1659 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1663 /* Carry in, carry out */
1665 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1666 octa2
= (MID_ONE
& *p
) >> 4;
1667 octa3
= (LOW_ONE
& *p
) >> 1;
1668 carry
= (CARRY_ONE
& *p
);
1669 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1670 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1671 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1675 /* Carry in, no carry out */
1677 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1678 octa2
= (MID_TWO
& *p
) >> 3;
1679 octa3
= (LOW_TWO
& *p
);
1681 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1682 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1683 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1687 error (_("Internal error in octal conversion;"));
1691 cycle
= cycle
% BITS_IN_OCTAL
;
1697 /* Possibly negate the integer represented by BYTES. It contains LEN
1698 bytes in the specified byte order. If the integer is negative,
1699 copy it into OUT_VEC, negate it, and return true. Otherwise, do
1700 nothing and return false. */
1703 maybe_negate_by_bytes (const gdb_byte
*bytes
, unsigned len
,
1704 enum bfd_endian byte_order
,
1705 gdb::byte_vector
*out_vec
)
1708 gdb_assert (len
> 0);
1709 if (byte_order
== BFD_ENDIAN_BIG
)
1710 sign_byte
= bytes
[0];
1712 sign_byte
= bytes
[len
- 1];
1713 if ((sign_byte
& 0x80) == 0)
1716 out_vec
->resize (len
);
1718 /* Compute -x == 1 + ~x. */
1719 if (byte_order
== BFD_ENDIAN_LITTLE
)
1722 for (unsigned i
= 0; i
< len
; ++i
)
1724 unsigned tem
= (0xff & ~bytes
[i
]) + carry
;
1725 (*out_vec
)[i
] = tem
& 0xff;
1732 for (unsigned i
= len
; i
> 0; --i
)
1734 unsigned tem
= (0xff & ~bytes
[i
- 1]) + carry
;
1735 (*out_vec
)[i
- 1] = tem
& 0xff;
1743 /* VALADDR points to an integer of LEN bytes.
1744 Print it in decimal on stream or format it in buf. */
1747 print_decimal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1748 unsigned len
, bool is_signed
,
1749 enum bfd_endian byte_order
)
1752 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1753 #define CARRY_LEFT( x ) ((x) % TEN)
1754 #define SHIFT( x ) ((x) << 4)
1755 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1756 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1761 int i
, j
, decimal_digits
;
1765 gdb::byte_vector negated_bytes
;
1767 && maybe_negate_by_bytes (valaddr
, len
, byte_order
, &negated_bytes
))
1769 fputs_filtered ("-", stream
);
1770 valaddr
= negated_bytes
.data ();
1773 /* Base-ten number is less than twice as many digits
1774 as the base 16 number, which is 2 digits per byte. */
1776 decimal_len
= len
* 2 * 2;
1777 std::vector
<unsigned char> digits (decimal_len
, 0);
1779 /* Ok, we have an unknown number of bytes of data to be printed in
1782 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1783 * decimalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1784 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1786 * The trick is that "digits" holds a base-10 number, but sometimes
1787 * the individual digits are > 10.
1789 * Outer loop is per nibble (hex digit) of input, from MSD end to
1792 decimal_digits
= 0; /* Number of decimal digits so far */
1793 p
= (byte_order
== BFD_ENDIAN_BIG
) ? valaddr
: valaddr
+ len
- 1;
1795 while ((byte_order
== BFD_ENDIAN_BIG
) ? (p
< valaddr
+ len
) : (p
>= valaddr
))
1798 * Multiply current base-ten number by 16 in place.
1799 * Each digit was between 0 and 9, now is between
1802 for (j
= 0; j
< decimal_digits
; j
++)
1804 digits
[j
] = SHIFT (digits
[j
]);
1807 /* Take the next nibble off the input and add it to what
1808 * we've got in the LSB position. Bottom 'digit' is now
1809 * between 0 and 159.
1811 * "flip" is used to run this loop twice for each byte.
1815 /* Take top nibble. */
1817 digits
[0] += HIGH_NIBBLE (*p
);
1822 /* Take low nibble and bump our pointer "p". */
1824 digits
[0] += LOW_NIBBLE (*p
);
1825 if (byte_order
== BFD_ENDIAN_BIG
)
1832 /* Re-decimalize. We have to do this often enough
1833 * that we don't overflow, but once per nibble is
1834 * overkill. Easier this way, though. Note that the
1835 * carry is often larger than 10 (e.g. max initial
1836 * carry out of lowest nibble is 15, could bubble all
1837 * the way up greater than 10). So we have to do
1838 * the carrying beyond the last current digit.
1841 for (j
= 0; j
< decimal_len
- 1; j
++)
1845 /* "/" won't handle an unsigned char with
1846 * a value that if signed would be negative.
1847 * So extend to longword int via "dummy".
1850 carry
= CARRY_OUT (dummy
);
1851 digits
[j
] = CARRY_LEFT (dummy
);
1853 if (j
>= decimal_digits
&& carry
== 0)
1856 * All higher digits are 0 and we
1857 * no longer have a carry.
1859 * Note: "j" is 0-based, "decimal_digits" is
1862 decimal_digits
= j
+ 1;
1868 /* Ok, now "digits" is the decimal representation, with
1869 the "decimal_digits" actual digits. Print! */
1871 for (i
= decimal_digits
- 1; i
> 0 && digits
[i
] == 0; --i
)
1876 fprintf_filtered (stream
, "%1d", digits
[i
]);
1880 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1883 print_hex_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1884 unsigned len
, enum bfd_endian byte_order
,
1889 fputs_filtered ("0x", stream
);
1890 if (byte_order
== BFD_ENDIAN_BIG
)
1896 /* Strip leading 0 bytes, but be sure to leave at least a
1897 single byte at the end. */
1898 for (; p
< valaddr
+ len
- 1 && !*p
; ++p
)
1902 const gdb_byte
*first
= p
;
1907 /* When not zero-padding, use a different format for the
1908 very first byte printed. */
1909 if (!zero_pad
&& p
== first
)
1910 fprintf_filtered (stream
, "%x", *p
);
1912 fprintf_filtered (stream
, "%02x", *p
);
1917 p
= valaddr
+ len
- 1;
1921 /* Strip leading 0 bytes, but be sure to leave at least a
1922 single byte at the end. */
1923 for (; p
>= valaddr
+ 1 && !*p
; --p
)
1927 const gdb_byte
*first
= p
;
1932 /* When not zero-padding, use a different format for the
1933 very first byte printed. */
1934 if (!zero_pad
&& p
== first
)
1935 fprintf_filtered (stream
, "%x", *p
);
1937 fprintf_filtered (stream
, "%02x", *p
);
1942 /* VALADDR points to a char integer of LEN bytes.
1943 Print it out in appropriate language form on stream.
1944 Omit any leading zero chars. */
1947 print_char_chars (struct ui_file
*stream
, struct type
*type
,
1948 const gdb_byte
*valaddr
,
1949 unsigned len
, enum bfd_endian byte_order
)
1953 if (byte_order
== BFD_ENDIAN_BIG
)
1956 while (p
< valaddr
+ len
- 1 && *p
== 0)
1959 while (p
< valaddr
+ len
)
1961 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1967 p
= valaddr
+ len
- 1;
1968 while (p
> valaddr
&& *p
== 0)
1971 while (p
>= valaddr
)
1973 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1979 /* Print function pointer with inferior address ADDRESS onto stdio
1983 print_function_pointer_address (const struct value_print_options
*options
,
1984 struct gdbarch
*gdbarch
,
1986 struct ui_file
*stream
)
1989 = gdbarch_convert_from_func_ptr_addr (gdbarch
, address
,
1990 current_top_target ());
1992 /* If the function pointer is represented by a description, print
1993 the address of the description. */
1994 if (options
->addressprint
&& func_addr
!= address
)
1996 fputs_filtered ("@", stream
);
1997 fputs_filtered (paddress (gdbarch
, address
), stream
);
1998 fputs_filtered (": ", stream
);
2000 print_address_demangle (options
, gdbarch
, func_addr
, stream
, demangle
);
2004 /* Print on STREAM using the given OPTIONS the index for the element
2005 at INDEX of an array whose index type is INDEX_TYPE. */
2008 maybe_print_array_index (struct type
*index_type
, LONGEST index
,
2009 struct ui_file
*stream
,
2010 const struct value_print_options
*options
)
2012 struct value
*index_value
;
2014 if (!options
->print_array_indexes
)
2017 index_value
= value_from_longest (index_type
, index
);
2019 LA_PRINT_ARRAY_INDEX (index_value
, stream
, options
);
2022 /* Called by various <lang>_val_print routines to print elements of an
2023 array in the form "<elem1>, <elem2>, <elem3>, ...".
2025 (FIXME?) Assumes array element separator is a comma, which is correct
2026 for all languages currently handled.
2027 (FIXME?) Some languages have a notation for repeated array elements,
2028 perhaps we should try to use that notation when appropriate. */
2031 val_print_array_elements (struct type
*type
,
2032 LONGEST embedded_offset
,
2033 CORE_ADDR address
, struct ui_file
*stream
,
2036 const struct value_print_options
*options
,
2039 unsigned int things_printed
= 0;
2041 struct type
*elttype
, *index_type
, *base_index_type
;
2043 /* Position of the array element we are examining to see
2044 whether it is repeated. */
2046 /* Number of repetitions we have detected so far. */
2048 LONGEST low_bound
, high_bound
;
2049 LONGEST low_pos
, high_pos
;
2051 elttype
= TYPE_TARGET_TYPE (type
);
2052 eltlen
= type_length_units (check_typedef (elttype
));
2053 index_type
= TYPE_INDEX_TYPE (type
);
2055 if (get_array_bounds (type
, &low_bound
, &high_bound
))
2057 if (TYPE_CODE (index_type
) == TYPE_CODE_RANGE
)
2058 base_index_type
= TYPE_TARGET_TYPE (index_type
);
2060 base_index_type
= index_type
;
2062 /* Non-contiguous enumerations types can by used as index types
2063 in some languages (e.g. Ada). In this case, the array length
2064 shall be computed from the positions of the first and last
2065 literal in the enumeration type, and not from the values
2066 of these literals. */
2067 if (!discrete_position (base_index_type
, low_bound
, &low_pos
)
2068 || !discrete_position (base_index_type
, high_bound
, &high_pos
))
2070 warning (_("unable to get positions in array, use bounds instead"));
2071 low_pos
= low_bound
;
2072 high_pos
= high_bound
;
2075 /* The array length should normally be HIGH_POS - LOW_POS + 1.
2076 But we have to be a little extra careful, because some languages
2077 such as Ada allow LOW_POS to be greater than HIGH_POS for
2078 empty arrays. In that situation, the array length is just zero,
2080 if (low_pos
> high_pos
)
2083 len
= high_pos
- low_pos
+ 1;
2087 warning (_("unable to get bounds of array, assuming null array"));
2092 annotate_array_section_begin (i
, elttype
);
2094 for (; i
< len
&& things_printed
< options
->print_max
; i
++)
2098 if (options
->prettyformat_arrays
)
2100 fprintf_filtered (stream
, ",\n");
2101 print_spaces_filtered (2 + 2 * recurse
, stream
);
2105 fprintf_filtered (stream
, ", ");
2108 wrap_here (n_spaces (2 + 2 * recurse
));
2109 maybe_print_array_index (index_type
, i
+ low_bound
,
2114 /* Only check for reps if repeat_count_threshold is not set to
2115 UINT_MAX (unlimited). */
2116 if (options
->repeat_count_threshold
< UINT_MAX
)
2119 && value_contents_eq (val
,
2120 embedded_offset
+ i
* eltlen
,
2131 if (reps
> options
->repeat_count_threshold
)
2133 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2134 address
, stream
, recurse
+ 1, val
, options
,
2136 annotate_elt_rep (reps
);
2137 fprintf_filtered (stream
, " %p[<repeats %u times>%p]",
2138 metadata_style
.style ().ptr (), reps
, nullptr);
2139 annotate_elt_rep_end ();
2142 things_printed
+= options
->repeat_count_threshold
;
2146 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2148 stream
, recurse
+ 1, val
, options
, current_language
);
2153 annotate_array_section_end ();
2156 fprintf_filtered (stream
, "...");
2160 /* Read LEN bytes of target memory at address MEMADDR, placing the
2161 results in GDB's memory at MYADDR. Returns a count of the bytes
2162 actually read, and optionally a target_xfer_status value in the
2163 location pointed to by ERRPTR if ERRPTR is non-null. */
2165 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
2166 function be eliminated. */
2169 partial_memory_read (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
2170 int len
, int *errptr
)
2172 int nread
; /* Number of bytes actually read. */
2173 int errcode
; /* Error from last read. */
2175 /* First try a complete read. */
2176 errcode
= target_read_memory (memaddr
, myaddr
, len
);
2184 /* Loop, reading one byte at a time until we get as much as we can. */
2185 for (errcode
= 0, nread
= 0; len
> 0 && errcode
== 0; nread
++, len
--)
2187 errcode
= target_read_memory (memaddr
++, myaddr
++, 1);
2189 /* If an error, the last read was unsuccessful, so adjust count. */
2202 /* Read a string from the inferior, at ADDR, with LEN characters of
2203 WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER
2204 will be set to a newly allocated buffer containing the string, and
2205 BYTES_READ will be set to the number of bytes read. Returns 0 on
2206 success, or a target_xfer_status on failure.
2208 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
2209 (including eventual NULs in the middle or end of the string).
2211 If LEN is -1, stops at the first null character (not necessarily
2212 the first null byte) up to a maximum of FETCHLIMIT characters. Set
2213 FETCHLIMIT to UINT_MAX to read as many characters as possible from
2216 Unless an exception is thrown, BUFFER will always be allocated, even on
2217 failure. In this case, some characters might have been read before the
2218 failure happened. Check BYTES_READ to recognize this situation.
2220 Note: There was a FIXME asking to make this code use target_read_string,
2221 but this function is more general (can read past null characters, up to
2222 given LEN). Besides, it is used much more often than target_read_string
2223 so it is more tested. Perhaps callers of target_read_string should use
2224 this function instead? */
2227 read_string (CORE_ADDR addr
, int len
, int width
, unsigned int fetchlimit
,
2228 enum bfd_endian byte_order
, gdb::unique_xmalloc_ptr
<gdb_byte
> *buffer
,
2231 int errcode
; /* Errno returned from bad reads. */
2232 unsigned int nfetch
; /* Chars to fetch / chars fetched. */
2233 gdb_byte
*bufptr
; /* Pointer to next available byte in
2236 /* Loop until we either have all the characters, or we encounter
2237 some error, such as bumping into the end of the address space. */
2239 buffer
->reset (nullptr);
2243 /* We want fetchlimit chars, so we might as well read them all in
2245 unsigned int fetchlen
= std::min ((unsigned) len
, fetchlimit
);
2247 buffer
->reset ((gdb_byte
*) xmalloc (fetchlen
* width
));
2248 bufptr
= buffer
->get ();
2250 nfetch
= partial_memory_read (addr
, bufptr
, fetchlen
* width
, &errcode
)
2252 addr
+= nfetch
* width
;
2253 bufptr
+= nfetch
* width
;
2257 unsigned long bufsize
= 0;
2258 unsigned int chunksize
; /* Size of each fetch, in chars. */
2259 int found_nul
; /* Non-zero if we found the nul char. */
2260 gdb_byte
*limit
; /* First location past end of fetch buffer. */
2263 /* We are looking for a NUL terminator to end the fetching, so we
2264 might as well read in blocks that are large enough to be efficient,
2265 but not so large as to be slow if fetchlimit happens to be large.
2266 So we choose the minimum of 8 and fetchlimit. We used to use 200
2267 instead of 8 but 200 is way too big for remote debugging over a
2269 chunksize
= std::min (8u, fetchlimit
);
2274 nfetch
= std::min ((unsigned long) chunksize
, fetchlimit
- bufsize
);
2276 if (*buffer
== NULL
)
2277 buffer
->reset ((gdb_byte
*) xmalloc (nfetch
* width
));
2279 buffer
->reset ((gdb_byte
*) xrealloc (buffer
->release (),
2280 (nfetch
+ bufsize
) * width
));
2282 bufptr
= buffer
->get () + bufsize
* width
;
2285 /* Read as much as we can. */
2286 nfetch
= partial_memory_read (addr
, bufptr
, nfetch
* width
, &errcode
)
2289 /* Scan this chunk for the null character that terminates the string
2290 to print. If found, we don't need to fetch any more. Note
2291 that bufptr is explicitly left pointing at the next character
2292 after the null character, or at the next character after the end
2295 limit
= bufptr
+ nfetch
* width
;
2296 while (bufptr
< limit
)
2300 c
= extract_unsigned_integer (bufptr
, width
, byte_order
);
2305 /* We don't care about any error which happened after
2306 the NUL terminator. */
2313 while (errcode
== 0 /* no error */
2314 && bufptr
- buffer
->get () < fetchlimit
* width
/* no overrun */
2315 && !found_nul
); /* haven't found NUL yet */
2318 { /* Length of string is really 0! */
2319 /* We always allocate *buffer. */
2320 buffer
->reset ((gdb_byte
*) xmalloc (1));
2321 bufptr
= buffer
->get ();
2325 /* bufptr and addr now point immediately beyond the last byte which we
2326 consider part of the string (including a '\0' which ends the string). */
2327 *bytes_read
= bufptr
- buffer
->get ();
2334 /* Return true if print_wchar can display W without resorting to a
2335 numeric escape, false otherwise. */
2338 wchar_printable (gdb_wchar_t w
)
2340 return (gdb_iswprint (w
)
2341 || w
== LCST ('\a') || w
== LCST ('\b')
2342 || w
== LCST ('\f') || w
== LCST ('\n')
2343 || w
== LCST ('\r') || w
== LCST ('\t')
2344 || w
== LCST ('\v'));
2347 /* A helper function that converts the contents of STRING to wide
2348 characters and then appends them to OUTPUT. */
2351 append_string_as_wide (const char *string
,
2352 struct obstack
*output
)
2354 for (; *string
; ++string
)
2356 gdb_wchar_t w
= gdb_btowc (*string
);
2357 obstack_grow (output
, &w
, sizeof (gdb_wchar_t
));
2361 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2362 original (target) bytes representing the character, ORIG_LEN is the
2363 number of valid bytes. WIDTH is the number of bytes in a base
2364 characters of the type. OUTPUT is an obstack to which wide
2365 characters are emitted. QUOTER is a (narrow) character indicating
2366 the style of quotes surrounding the character to be printed.
2367 NEED_ESCAPE is an in/out flag which is used to track numeric
2368 escapes across calls. */
2371 print_wchar (gdb_wint_t w
, const gdb_byte
*orig
,
2372 int orig_len
, int width
,
2373 enum bfd_endian byte_order
,
2374 struct obstack
*output
,
2375 int quoter
, int *need_escapep
)
2377 int need_escape
= *need_escapep
;
2381 /* iswprint implementation on Windows returns 1 for tab character.
2382 In order to avoid different printout on this host, we explicitly
2383 use wchar_printable function. */
2387 obstack_grow_wstr (output
, LCST ("\\a"));
2390 obstack_grow_wstr (output
, LCST ("\\b"));
2393 obstack_grow_wstr (output
, LCST ("\\f"));
2396 obstack_grow_wstr (output
, LCST ("\\n"));
2399 obstack_grow_wstr (output
, LCST ("\\r"));
2402 obstack_grow_wstr (output
, LCST ("\\t"));
2405 obstack_grow_wstr (output
, LCST ("\\v"));
2409 if (wchar_printable (w
) && (!need_escape
|| (!gdb_iswdigit (w
)
2411 && w
!= LCST ('9'))))
2413 gdb_wchar_t wchar
= w
;
2415 if (w
== gdb_btowc (quoter
) || w
== LCST ('\\'))
2416 obstack_grow_wstr (output
, LCST ("\\"));
2417 obstack_grow (output
, &wchar
, sizeof (gdb_wchar_t
));
2423 for (i
= 0; i
+ width
<= orig_len
; i
+= width
)
2428 value
= extract_unsigned_integer (&orig
[i
], width
,
2430 /* If the value fits in 3 octal digits, print it that
2431 way. Otherwise, print it as a hex escape. */
2433 xsnprintf (octal
, sizeof (octal
), "\\%.3o",
2434 (int) (value
& 0777));
2436 xsnprintf (octal
, sizeof (octal
), "\\x%lx", (long) value
);
2437 append_string_as_wide (octal
, output
);
2439 /* If we somehow have extra bytes, print them now. */
2440 while (i
< orig_len
)
2444 xsnprintf (octal
, sizeof (octal
), "\\%.3o", orig
[i
] & 0xff);
2445 append_string_as_wide (octal
, output
);
2456 /* Print the character C on STREAM as part of the contents of a
2457 literal string whose delimiter is QUOTER. ENCODING names the
2461 generic_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
2462 int quoter
, const char *encoding
)
2464 enum bfd_endian byte_order
2465 = type_byte_order (type
);
2467 int need_escape
= 0;
2469 c_buf
= (gdb_byte
*) alloca (TYPE_LENGTH (type
));
2470 pack_long (c_buf
, type
, c
);
2472 wchar_iterator
iter (c_buf
, TYPE_LENGTH (type
), encoding
, TYPE_LENGTH (type
));
2474 /* This holds the printable form of the wchar_t data. */
2475 auto_obstack wchar_buf
;
2481 const gdb_byte
*buf
;
2483 int print_escape
= 1;
2484 enum wchar_iterate_result result
;
2486 num_chars
= iter
.iterate (&result
, &chars
, &buf
, &buflen
);
2491 /* If all characters are printable, print them. Otherwise,
2492 we're going to have to print an escape sequence. We
2493 check all characters because we want to print the target
2494 bytes in the escape sequence, and we don't know character
2495 boundaries there. */
2499 for (i
= 0; i
< num_chars
; ++i
)
2500 if (!wchar_printable (chars
[i
]))
2508 for (i
= 0; i
< num_chars
; ++i
)
2509 print_wchar (chars
[i
], buf
, buflen
,
2510 TYPE_LENGTH (type
), byte_order
,
2511 &wchar_buf
, quoter
, &need_escape
);
2515 /* This handles the NUM_CHARS == 0 case as well. */
2517 print_wchar (gdb_WEOF
, buf
, buflen
, TYPE_LENGTH (type
),
2518 byte_order
, &wchar_buf
, quoter
, &need_escape
);
2521 /* The output in the host encoding. */
2522 auto_obstack output
;
2524 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2525 (gdb_byte
*) obstack_base (&wchar_buf
),
2526 obstack_object_size (&wchar_buf
),
2527 sizeof (gdb_wchar_t
), &output
, translit_char
);
2528 obstack_1grow (&output
, '\0');
2530 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2533 /* Return the repeat count of the next character/byte in ITER,
2534 storing the result in VEC. */
2537 count_next_character (wchar_iterator
*iter
,
2538 std::vector
<converted_character
> *vec
)
2540 struct converted_character
*current
;
2544 struct converted_character tmp
;
2548 = iter
->iterate (&tmp
.result
, &chars
, &tmp
.buf
, &tmp
.buflen
);
2549 if (tmp
.num_chars
> 0)
2551 gdb_assert (tmp
.num_chars
< MAX_WCHARS
);
2552 memcpy (tmp
.chars
, chars
, tmp
.num_chars
* sizeof (gdb_wchar_t
));
2554 vec
->push_back (tmp
);
2557 current
= &vec
->back ();
2559 /* Count repeated characters or bytes. */
2560 current
->repeat_count
= 1;
2561 if (current
->num_chars
== -1)
2569 struct converted_character d
;
2576 /* Get the next character. */
2577 d
.num_chars
= iter
->iterate (&d
.result
, &chars
, &d
.buf
, &d
.buflen
);
2579 /* If a character was successfully converted, save the character
2580 into the converted character. */
2581 if (d
.num_chars
> 0)
2583 gdb_assert (d
.num_chars
< MAX_WCHARS
);
2584 memcpy (d
.chars
, chars
, WCHAR_BUFLEN (d
.num_chars
));
2587 /* Determine if the current character is the same as this
2589 if (d
.num_chars
== current
->num_chars
&& d
.result
== current
->result
)
2591 /* There are two cases to consider:
2593 1) Equality of converted character (num_chars > 0)
2594 2) Equality of non-converted character (num_chars == 0) */
2595 if ((current
->num_chars
> 0
2596 && memcmp (current
->chars
, d
.chars
,
2597 WCHAR_BUFLEN (current
->num_chars
)) == 0)
2598 || (current
->num_chars
== 0
2599 && current
->buflen
== d
.buflen
2600 && memcmp (current
->buf
, d
.buf
, current
->buflen
) == 0))
2601 ++current
->repeat_count
;
2609 /* Push this next converted character onto the result vector. */
2610 repeat
= current
->repeat_count
;
2616 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2617 character to use with string output. WIDTH is the size of the output
2618 character type. BYTE_ORDER is the target byte order. OPTIONS
2619 is the user's print options. */
2622 print_converted_chars_to_obstack (struct obstack
*obstack
,
2623 const std::vector
<converted_character
> &chars
,
2624 int quote_char
, int width
,
2625 enum bfd_endian byte_order
,
2626 const struct value_print_options
*options
)
2629 const converted_character
*elem
;
2630 enum {START
, SINGLE
, REPEAT
, INCOMPLETE
, FINISH
} state
, last
;
2631 gdb_wchar_t wide_quote_char
= gdb_btowc (quote_char
);
2632 int need_escape
= 0;
2634 /* Set the start state. */
2636 last
= state
= START
;
2644 /* Nothing to do. */
2651 /* We are outputting a single character
2652 (< options->repeat_count_threshold). */
2656 /* We were outputting some other type of content, so we
2657 must output and a comma and a quote. */
2659 obstack_grow_wstr (obstack
, LCST (", "));
2660 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2662 /* Output the character. */
2663 for (j
= 0; j
< elem
->repeat_count
; ++j
)
2665 if (elem
->result
== wchar_iterate_ok
)
2666 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2667 byte_order
, obstack
, quote_char
, &need_escape
);
2669 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2670 byte_order
, obstack
, quote_char
, &need_escape
);
2679 /* We are outputting a character with a repeat count
2680 greater than options->repeat_count_threshold. */
2684 /* We were outputting a single string. Terminate the
2686 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2689 obstack_grow_wstr (obstack
, LCST (", "));
2691 /* Output the character and repeat string. */
2692 obstack_grow_wstr (obstack
, LCST ("'"));
2693 if (elem
->result
== wchar_iterate_ok
)
2694 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2695 byte_order
, obstack
, quote_char
, &need_escape
);
2697 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2698 byte_order
, obstack
, quote_char
, &need_escape
);
2699 obstack_grow_wstr (obstack
, LCST ("'"));
2700 std::string s
= string_printf (_(" <repeats %u times>"),
2701 elem
->repeat_count
);
2702 for (j
= 0; s
[j
]; ++j
)
2704 gdb_wchar_t w
= gdb_btowc (s
[j
]);
2705 obstack_grow (obstack
, &w
, sizeof (gdb_wchar_t
));
2711 /* We are outputting an incomplete sequence. */
2714 /* If we were outputting a string of SINGLE characters,
2715 terminate the quote. */
2716 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2719 obstack_grow_wstr (obstack
, LCST (", "));
2721 /* Output the incomplete sequence string. */
2722 obstack_grow_wstr (obstack
, LCST ("<incomplete sequence "));
2723 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
, byte_order
,
2724 obstack
, 0, &need_escape
);
2725 obstack_grow_wstr (obstack
, LCST (">"));
2727 /* We do not attempt to output anything after this. */
2732 /* All done. If we were outputting a string of SINGLE
2733 characters, the string must be terminated. Otherwise,
2734 REPEAT and INCOMPLETE are always left properly terminated. */
2736 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2741 /* Get the next element and state. */
2743 if (state
!= FINISH
)
2745 elem
= &chars
[idx
++];
2746 switch (elem
->result
)
2748 case wchar_iterate_ok
:
2749 case wchar_iterate_invalid
:
2750 if (elem
->repeat_count
> options
->repeat_count_threshold
)
2756 case wchar_iterate_incomplete
:
2760 case wchar_iterate_eof
:
2768 /* Print the character string STRING, printing at most LENGTH
2769 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2770 the type of each character. OPTIONS holds the printing options;
2771 printing stops early if the number hits print_max; repeat counts
2772 are printed as appropriate. Print ellipses at the end if we had to
2773 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2774 QUOTE_CHAR is the character to print at each end of the string. If
2775 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2779 generic_printstr (struct ui_file
*stream
, struct type
*type
,
2780 const gdb_byte
*string
, unsigned int length
,
2781 const char *encoding
, int force_ellipses
,
2782 int quote_char
, int c_style_terminator
,
2783 const struct value_print_options
*options
)
2785 enum bfd_endian byte_order
= type_byte_order (type
);
2787 int width
= TYPE_LENGTH (type
);
2789 struct converted_character
*last
;
2793 unsigned long current_char
= 1;
2795 for (i
= 0; current_char
; ++i
)
2798 current_char
= extract_unsigned_integer (string
+ i
* width
,
2804 /* If the string was not truncated due to `set print elements', and
2805 the last byte of it is a null, we don't print that, in
2806 traditional C style. */
2807 if (c_style_terminator
2810 && (extract_unsigned_integer (string
+ (length
- 1) * width
,
2811 width
, byte_order
) == 0))
2816 fputs_filtered ("\"\"", stream
);
2820 /* Arrange to iterate over the characters, in wchar_t form. */
2821 wchar_iterator
iter (string
, length
* width
, encoding
, width
);
2822 std::vector
<converted_character
> converted_chars
;
2824 /* Convert characters until the string is over or the maximum
2825 number of printed characters has been reached. */
2827 while (i
< options
->print_max
)
2833 /* Grab the next character and repeat count. */
2834 r
= count_next_character (&iter
, &converted_chars
);
2836 /* If less than zero, the end of the input string was reached. */
2840 /* Otherwise, add the count to the total print count and get
2841 the next character. */
2845 /* Get the last element and determine if the entire string was
2847 last
= &converted_chars
.back ();
2848 finished
= (last
->result
== wchar_iterate_eof
);
2850 /* Ensure that CONVERTED_CHARS is terminated. */
2851 last
->result
= wchar_iterate_eof
;
2853 /* WCHAR_BUF is the obstack we use to represent the string in
2855 auto_obstack wchar_buf
;
2857 /* Print the output string to the obstack. */
2858 print_converted_chars_to_obstack (&wchar_buf
, converted_chars
, quote_char
,
2859 width
, byte_order
, options
);
2861 if (force_ellipses
|| !finished
)
2862 obstack_grow_wstr (&wchar_buf
, LCST ("..."));
2864 /* OUTPUT is where we collect `char's for printing. */
2865 auto_obstack output
;
2867 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2868 (gdb_byte
*) obstack_base (&wchar_buf
),
2869 obstack_object_size (&wchar_buf
),
2870 sizeof (gdb_wchar_t
), &output
, translit_char
);
2871 obstack_1grow (&output
, '\0');
2873 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2876 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2877 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2878 stops at the first null byte, otherwise printing proceeds (including null
2879 bytes) until either print_max or LEN characters have been printed,
2880 whichever is smaller. ENCODING is the name of the string's
2881 encoding. It can be NULL, in which case the target encoding is
2885 val_print_string (struct type
*elttype
, const char *encoding
,
2886 CORE_ADDR addr
, int len
,
2887 struct ui_file
*stream
,
2888 const struct value_print_options
*options
)
2890 int force_ellipsis
= 0; /* Force ellipsis to be printed if nonzero. */
2891 int err
; /* Non-zero if we got a bad read. */
2892 int found_nul
; /* Non-zero if we found the nul char. */
2893 unsigned int fetchlimit
; /* Maximum number of chars to print. */
2895 gdb::unique_xmalloc_ptr
<gdb_byte
> buffer
; /* Dynamically growable fetch buffer. */
2896 struct gdbarch
*gdbarch
= get_type_arch (elttype
);
2897 enum bfd_endian byte_order
= type_byte_order (elttype
);
2898 int width
= TYPE_LENGTH (elttype
);
2900 /* First we need to figure out the limit on the number of characters we are
2901 going to attempt to fetch and print. This is actually pretty simple. If
2902 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2903 LEN is -1, then the limit is print_max. This is true regardless of
2904 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2905 because finding the null byte (or available memory) is what actually
2906 limits the fetch. */
2908 fetchlimit
= (len
== -1 ? options
->print_max
: std::min ((unsigned) len
,
2909 options
->print_max
));
2911 err
= read_string (addr
, len
, width
, fetchlimit
, byte_order
,
2912 &buffer
, &bytes_read
);
2916 /* We now have either successfully filled the buffer to fetchlimit,
2917 or terminated early due to an error or finding a null char when
2920 /* Determine found_nul by looking at the last character read. */
2922 if (bytes_read
>= width
)
2923 found_nul
= extract_unsigned_integer (buffer
.get () + bytes_read
- width
,
2924 width
, byte_order
) == 0;
2925 if (len
== -1 && !found_nul
)
2929 /* We didn't find a NUL terminator we were looking for. Attempt
2930 to peek at the next character. If not successful, or it is not
2931 a null byte, then force ellipsis to be printed. */
2933 peekbuf
= (gdb_byte
*) alloca (width
);
2935 if (target_read_memory (addr
, peekbuf
, width
) == 0
2936 && extract_unsigned_integer (peekbuf
, width
, byte_order
) != 0)
2939 else if ((len
>= 0 && err
!= 0) || (len
> bytes_read
/ width
))
2941 /* Getting an error when we have a requested length, or fetching less
2942 than the number of characters actually requested, always make us
2947 /* If we get an error before fetching anything, don't print a string.
2948 But if we fetch something and then get an error, print the string
2949 and then the error message. */
2950 if (err
== 0 || bytes_read
> 0)
2952 LA_PRINT_STRING (stream
, elttype
, buffer
.get (), bytes_read
/ width
,
2953 encoding
, force_ellipsis
, options
);
2958 std::string str
= memory_error_message (TARGET_XFER_E_IO
, gdbarch
, addr
);
2960 fprintf_filtered (stream
, _("<error: %ps>"),
2961 styled_string (metadata_style
.style (),
2965 return (bytes_read
/ width
);
2968 /* Handle 'show print max-depth'. */
2971 show_print_max_depth (struct ui_file
*file
, int from_tty
,
2972 struct cmd_list_element
*c
, const char *value
)
2974 fprintf_filtered (file
, _("Maximum print depth is %s.\n"), value
);
2978 /* The 'set input-radix' command writes to this auxiliary variable.
2979 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2980 it is left unchanged. */
2982 static unsigned input_radix_1
= 10;
2984 /* Validate an input or output radix setting, and make sure the user
2985 knows what they really did here. Radix setting is confusing, e.g.
2986 setting the input radix to "10" never changes it! */
2989 set_input_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
2991 set_input_radix_1 (from_tty
, input_radix_1
);
2995 set_input_radix_1 (int from_tty
, unsigned radix
)
2997 /* We don't currently disallow any input radix except 0 or 1, which don't
2998 make any mathematical sense. In theory, we can deal with any input
2999 radix greater than 1, even if we don't have unique digits for every
3000 value from 0 to radix-1, but in practice we lose on large radix values.
3001 We should either fix the lossage or restrict the radix range more.
3006 input_radix_1
= input_radix
;
3007 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
3010 input_radix_1
= input_radix
= radix
;
3013 printf_filtered (_("Input radix now set to "
3014 "decimal %u, hex %x, octal %o.\n"),
3015 radix
, radix
, radix
);
3019 /* The 'set output-radix' command writes to this auxiliary variable.
3020 If the requested radix is valid, OUTPUT_RADIX is updated,
3021 otherwise, it is left unchanged. */
3023 static unsigned output_radix_1
= 10;
3026 set_output_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
3028 set_output_radix_1 (from_tty
, output_radix_1
);
3032 set_output_radix_1 (int from_tty
, unsigned radix
)
3034 /* Validate the radix and disallow ones that we aren't prepared to
3035 handle correctly, leaving the radix unchanged. */
3039 user_print_options
.output_format
= 'x'; /* hex */
3042 user_print_options
.output_format
= 0; /* decimal */
3045 user_print_options
.output_format
= 'o'; /* octal */
3048 output_radix_1
= output_radix
;
3049 error (_("Unsupported output radix ``decimal %u''; "
3050 "output radix unchanged."),
3053 output_radix_1
= output_radix
= radix
;
3056 printf_filtered (_("Output radix now set to "
3057 "decimal %u, hex %x, octal %o.\n"),
3058 radix
, radix
, radix
);
3062 /* Set both the input and output radix at once. Try to set the output radix
3063 first, since it has the most restrictive range. An radix that is valid as
3064 an output radix is also valid as an input radix.
3066 It may be useful to have an unusual input radix. If the user wishes to
3067 set an input radix that is not valid as an output radix, he needs to use
3068 the 'set input-radix' command. */
3071 set_radix (const char *arg
, int from_tty
)
3075 radix
= (arg
== NULL
) ? 10 : parse_and_eval_long (arg
);
3076 set_output_radix_1 (0, radix
);
3077 set_input_radix_1 (0, radix
);
3080 printf_filtered (_("Input and output radices now set to "
3081 "decimal %u, hex %x, octal %o.\n"),
3082 radix
, radix
, radix
);
3086 /* Show both the input and output radices. */
3089 show_radix (const char *arg
, int from_tty
)
3093 if (input_radix
== output_radix
)
3095 printf_filtered (_("Input and output radices set to "
3096 "decimal %u, hex %x, octal %o.\n"),
3097 input_radix
, input_radix
, input_radix
);
3101 printf_filtered (_("Input radix set to decimal "
3102 "%u, hex %x, octal %o.\n"),
3103 input_radix
, input_radix
, input_radix
);
3104 printf_filtered (_("Output radix set to decimal "
3105 "%u, hex %x, octal %o.\n"),
3106 output_radix
, output_radix
, output_radix
);
3113 set_print (const char *arg
, int from_tty
)
3116 "\"set print\" must be followed by the name of a print subcommand.\n");
3117 help_list (setprintlist
, "set print ", all_commands
, gdb_stdout
);
3121 show_print (const char *args
, int from_tty
)
3123 cmd_show_list (showprintlist
, from_tty
, "");
3127 set_print_raw (const char *arg
, int from_tty
)
3130 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
3131 help_list (setprintrawlist
, "set print raw ", all_commands
, gdb_stdout
);
3135 show_print_raw (const char *args
, int from_tty
)
3137 cmd_show_list (showprintrawlist
, from_tty
, "");
3140 /* Controls printing of vtbl's. */
3142 show_vtblprint (struct ui_file
*file
, int from_tty
,
3143 struct cmd_list_element
*c
, const char *value
)
3145 fprintf_filtered (file
, _("\
3146 Printing of C++ virtual function tables is %s.\n"),
3150 /* Controls looking up an object's derived type using what we find in
3153 show_objectprint (struct ui_file
*file
, int from_tty
,
3154 struct cmd_list_element
*c
,
3157 fprintf_filtered (file
, _("\
3158 Printing of object's derived type based on vtable info is %s.\n"),
3163 show_static_field_print (struct ui_file
*file
, int from_tty
,
3164 struct cmd_list_element
*c
,
3167 fprintf_filtered (file
,
3168 _("Printing of C++ static members is %s.\n"),
3174 /* A couple typedefs to make writing the options a bit more
3176 using boolean_option_def
3177 = gdb::option::boolean_option_def
<value_print_options
>;
3178 using uinteger_option_def
3179 = gdb::option::uinteger_option_def
<value_print_options
>;
3180 using zuinteger_unlimited_option_def
3181 = gdb::option::zuinteger_unlimited_option_def
<value_print_options
>;
3183 /* Definitions of options for the "print" and "compile print"
3185 static const gdb::option::option_def value_print_option_defs
[] = {
3187 boolean_option_def
{
3189 [] (value_print_options
*opt
) { return &opt
->addressprint
; },
3190 show_addressprint
, /* show_cmd_cb */
3191 N_("Set printing of addresses."),
3192 N_("Show printing of addresses."),
3193 NULL
, /* help_doc */
3196 boolean_option_def
{
3198 [] (value_print_options
*opt
) { return &opt
->prettyformat_arrays
; },
3199 show_prettyformat_arrays
, /* show_cmd_cb */
3200 N_("Set pretty formatting of arrays."),
3201 N_("Show pretty formatting of arrays."),
3202 NULL
, /* help_doc */
3205 boolean_option_def
{
3207 [] (value_print_options
*opt
) { return &opt
->print_array_indexes
; },
3208 show_print_array_indexes
, /* show_cmd_cb */
3209 N_("Set printing of array indexes."),
3210 N_("Show printing of array indexes."),
3211 NULL
, /* help_doc */
3214 uinteger_option_def
{
3216 [] (value_print_options
*opt
) { return &opt
->print_max
; },
3217 show_print_max
, /* show_cmd_cb */
3218 N_("Set limit on string chars or array elements to print."),
3219 N_("Show limit on string chars or array elements to print."),
3220 N_("\"unlimited\" causes there to be no limit."),
3223 zuinteger_unlimited_option_def
{
3225 [] (value_print_options
*opt
) { return &opt
->max_depth
; },
3226 show_print_max_depth
, /* show_cmd_cb */
3227 N_("Set maximum print depth for nested structures, unions and arrays."),
3228 N_("Show maximum print depth for nested structures, unions, and arrays."),
3229 N_("When structures, unions, or arrays are nested beyond this depth then they\n\
3230 will be replaced with either '{...}' or '(...)' depending on the language.\n\
3231 Use \"unlimited\" to print the complete structure.")
3234 boolean_option_def
{
3236 [] (value_print_options
*opt
) { return &opt
->stop_print_at_null
; },
3237 show_stop_print_at_null
, /* show_cmd_cb */
3238 N_("Set printing of char arrays to stop at first null char."),
3239 N_("Show printing of char arrays to stop at first null char."),
3240 NULL
, /* help_doc */
3243 boolean_option_def
{
3245 [] (value_print_options
*opt
) { return &opt
->objectprint
; },
3246 show_objectprint
, /* show_cmd_cb */
3247 _("Set printing of C++ virtual function tables."),
3248 _("Show printing of C++ virtual function tables."),
3249 NULL
, /* help_doc */
3252 boolean_option_def
{
3254 [] (value_print_options
*opt
) { return &opt
->prettyformat_structs
; },
3255 show_prettyformat_structs
, /* show_cmd_cb */
3256 N_("Set pretty formatting of structures."),
3257 N_("Show pretty formatting of structures."),
3258 NULL
, /* help_doc */
3261 boolean_option_def
{
3263 [] (value_print_options
*opt
) { return &opt
->raw
; },
3264 NULL
, /* show_cmd_cb */
3265 N_("Set whether to print values in raw form."),
3266 N_("Show whether to print values in raw form."),
3267 N_("If set, values are printed in raw form, bypassing any\n\
3268 pretty-printers for that value.")
3271 uinteger_option_def
{
3273 [] (value_print_options
*opt
) { return &opt
->repeat_count_threshold
; },
3274 show_repeat_count_threshold
, /* show_cmd_cb */
3275 N_("Set threshold for repeated print elements."),
3276 N_("Show threshold for repeated print elements."),
3277 N_("\"unlimited\" causes all elements to be individually printed."),
3280 boolean_option_def
{
3282 [] (value_print_options
*opt
) { return &opt
->static_field_print
; },
3283 show_static_field_print
, /* show_cmd_cb */
3284 N_("Set printing of C++ static members."),
3285 N_("Show printing of C++ static members."),
3286 NULL
, /* help_doc */
3289 boolean_option_def
{
3291 [] (value_print_options
*opt
) { return &opt
->symbol_print
; },
3292 show_symbol_print
, /* show_cmd_cb */
3293 N_("Set printing of symbol names when printing pointers."),
3294 N_("Show printing of symbol names when printing pointers."),
3295 NULL
, /* help_doc */
3298 boolean_option_def
{
3300 [] (value_print_options
*opt
) { return &opt
->unionprint
; },
3301 show_unionprint
, /* show_cmd_cb */
3302 N_("Set printing of unions interior to structures."),
3303 N_("Show printing of unions interior to structures."),
3304 NULL
, /* help_doc */
3307 boolean_option_def
{
3309 [] (value_print_options
*opt
) { return &opt
->vtblprint
; },
3310 show_vtblprint
, /* show_cmd_cb */
3311 N_("Set printing of C++ virtual function tables."),
3312 N_("Show printing of C++ virtual function tables."),
3313 NULL
, /* help_doc */
3317 /* See valprint.h. */
3319 gdb::option::option_def_group
3320 make_value_print_options_def_group (value_print_options
*opts
)
3322 return {{value_print_option_defs
}, opts
};
3325 void _initialize_valprint ();
3327 _initialize_valprint ()
3329 cmd_list_element
*cmd
;
3331 add_prefix_cmd ("print", no_class
, set_print
,
3332 _("Generic command for setting how things print."),
3333 &setprintlist
, "set print ", 0, &setlist
);
3334 add_alias_cmd ("p", "print", no_class
, 1, &setlist
);
3335 /* Prefer set print to set prompt. */
3336 add_alias_cmd ("pr", "print", no_class
, 1, &setlist
);
3338 add_prefix_cmd ("print", no_class
, show_print
,
3339 _("Generic command for showing print settings."),
3340 &showprintlist
, "show print ", 0, &showlist
);
3341 add_alias_cmd ("p", "print", no_class
, 1, &showlist
);
3342 add_alias_cmd ("pr", "print", no_class
, 1, &showlist
);
3344 cmd
= add_prefix_cmd ("raw", no_class
, set_print_raw
,
3346 Generic command for setting what things to print in \"raw\" mode."),
3347 &setprintrawlist
, "set print raw ", 0,
3349 deprecate_cmd (cmd
, nullptr);
3351 cmd
= add_prefix_cmd ("raw", no_class
, show_print_raw
,
3352 _("Generic command for showing \"print raw\" settings."),
3353 &showprintrawlist
, "show print raw ", 0,
3355 deprecate_cmd (cmd
, nullptr);
3357 gdb::option::add_setshow_cmds_for_options
3358 (class_support
, &user_print_options
, value_print_option_defs
,
3359 &setprintlist
, &showprintlist
);
3361 add_setshow_zuinteger_cmd ("input-radix", class_support
, &input_radix_1
,
3363 Set default input radix for entering numbers."), _("\
3364 Show default input radix for entering numbers."), NULL
,
3367 &setlist
, &showlist
);
3369 add_setshow_zuinteger_cmd ("output-radix", class_support
, &output_radix_1
,
3371 Set default output radix for printing of values."), _("\
3372 Show default output radix for printing of values."), NULL
,
3375 &setlist
, &showlist
);
3377 /* The "set radix" and "show radix" commands are special in that
3378 they are like normal set and show commands but allow two normally
3379 independent variables to be either set or shown with a single
3380 command. So the usual deprecated_add_set_cmd() and [deleted]
3381 add_show_from_set() commands aren't really appropriate. */
3382 /* FIXME: i18n: With the new add_setshow_integer command, that is no
3383 longer true - show can display anything. */
3384 add_cmd ("radix", class_support
, set_radix
, _("\
3385 Set default input and output number radices.\n\
3386 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
3387 Without an argument, sets both radices back to the default value of 10."),
3389 add_cmd ("radix", class_support
, show_radix
, _("\
3390 Show the default input and output number radices.\n\
3391 Use 'show input-radix' or 'show output-radix' to independently show each."),