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 if (full_value
!= nullptr && language
->la_value_print_inner
!= nullptr)
1096 language
->la_value_print_inner (full_value
, stream
, recurse
,
1099 language
->la_val_print (type
, embedded_offset
, address
,
1100 stream
, recurse
, val
,
1103 catch (const gdb_exception_error
&except
)
1105 fprintf_styled (stream
, metadata_style
.style (),
1106 _("<error reading variable>"));
1110 /* Print using the given LANGUAGE the data of type TYPE located at
1111 VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came
1112 from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto
1113 stdio stream STREAM according to OPTIONS. VAL is the whole object
1114 that came from ADDRESS.
1116 The language printers will pass down an adjusted EMBEDDED_OFFSET to
1117 further helper subroutines as subfields of TYPE are printed. In
1118 such cases, VAL is passed down unadjusted, so
1119 that VAL can be queried for metadata about the contents data being
1120 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
1121 buffer. For example: "has this field been optimized out", or "I'm
1122 printing an object while inspecting a traceframe; has this
1123 particular piece of data been collected?".
1125 RECURSE indicates the amount of indentation to supply before
1126 continuation lines; this amount is roughly twice the value of
1130 val_print (struct type
*type
, LONGEST embedded_offset
,
1131 CORE_ADDR address
, struct ui_file
*stream
, int recurse
,
1133 const struct value_print_options
*options
,
1134 const struct language_defn
*language
)
1136 do_val_print (nullptr, type
, embedded_offset
, address
, stream
,
1137 recurse
, val
, options
, language
);
1140 /* See valprint.h. */
1143 val_print_check_max_depth (struct ui_file
*stream
, int recurse
,
1144 const struct value_print_options
*options
,
1145 const struct language_defn
*language
)
1147 if (options
->max_depth
> -1 && recurse
>= options
->max_depth
)
1149 gdb_assert (language
->la_struct_too_deep_ellipsis
!= NULL
);
1150 fputs_filtered (language
->la_struct_too_deep_ellipsis
, stream
);
1157 /* Check whether the value VAL is printable. Return 1 if it is;
1158 return 0 and print an appropriate error message to STREAM according to
1159 OPTIONS if it is not. */
1162 value_check_printable (struct value
*val
, struct ui_file
*stream
,
1163 const struct value_print_options
*options
)
1167 fprintf_styled (stream
, metadata_style
.style (),
1168 _("<address of value unknown>"));
1172 if (value_entirely_optimized_out (val
))
1174 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1175 fprintf_filtered (stream
, "...");
1177 val_print_optimized_out (val
, stream
);
1181 if (value_entirely_unavailable (val
))
1183 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1184 fprintf_filtered (stream
, "...");
1186 val_print_unavailable (stream
);
1190 if (TYPE_CODE (value_type (val
)) == TYPE_CODE_INTERNAL_FUNCTION
)
1192 fprintf_styled (stream
, metadata_style
.style (),
1193 _("<internal function %s>"),
1194 value_internal_function_name (val
));
1198 if (type_not_associated (value_type (val
)))
1200 val_print_not_associated (stream
);
1204 if (type_not_allocated (value_type (val
)))
1206 val_print_not_allocated (stream
);
1213 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
1216 This is a preferable interface to val_print, above, because it uses
1217 GDB's value mechanism. */
1220 common_val_print (struct value
*val
, struct ui_file
*stream
, int recurse
,
1221 const struct value_print_options
*options
,
1222 const struct language_defn
*language
)
1224 if (!value_check_printable (val
, stream
, options
))
1227 if (language
->la_language
== language_ada
)
1228 /* The value might have a dynamic type, which would cause trouble
1229 below when trying to extract the value contents (since the value
1230 size is determined from the type size which is unknown). So
1231 get a fixed representation of our value. */
1232 val
= ada_to_fixed_value (val
);
1234 if (value_lazy (val
))
1235 value_fetch_lazy (val
);
1237 do_val_print (val
, value_type (val
),
1238 value_embedded_offset (val
), value_address (val
),
1240 val
, options
, language
);
1243 /* See valprint.h. */
1246 common_val_print_checked (struct value
*val
, struct ui_file
*stream
,
1248 const struct value_print_options
*options
,
1249 const struct language_defn
*language
)
1251 if (!value_check_printable (val
, stream
, options
))
1253 common_val_print (val
, stream
, recurse
, options
, language
);
1256 /* Print on stream STREAM the value VAL according to OPTIONS. The value
1257 is printed using the current_language syntax. */
1260 value_print (struct value
*val
, struct ui_file
*stream
,
1261 const struct value_print_options
*options
)
1263 scoped_value_mark free_values
;
1265 if (!value_check_printable (val
, stream
, options
))
1271 = apply_ext_lang_val_pretty_printer (value_type (val
),
1272 value_embedded_offset (val
),
1273 value_address (val
),
1275 val
, options
, current_language
);
1281 LA_VALUE_PRINT (val
, stream
, options
);
1285 val_print_type_code_flags (struct type
*type
, const gdb_byte
*valaddr
,
1286 struct ui_file
*stream
)
1288 ULONGEST val
= unpack_long (type
, valaddr
);
1289 int field
, nfields
= TYPE_NFIELDS (type
);
1290 struct gdbarch
*gdbarch
= get_type_arch (type
);
1291 struct type
*bool_type
= builtin_type (gdbarch
)->builtin_bool
;
1293 fputs_filtered ("[", stream
);
1294 for (field
= 0; field
< nfields
; field
++)
1296 if (TYPE_FIELD_NAME (type
, field
)[0] != '\0')
1298 struct type
*field_type
= TYPE_FIELD_TYPE (type
, field
);
1300 if (field_type
== bool_type
1301 /* We require boolean types here to be one bit wide. This is a
1302 problematic place to notify the user of an internal error
1303 though. Instead just fall through and print the field as an
1305 && TYPE_FIELD_BITSIZE (type
, field
) == 1)
1307 if (val
& ((ULONGEST
)1 << TYPE_FIELD_BITPOS (type
, field
)))
1310 styled_string (variable_name_style
.style (),
1311 TYPE_FIELD_NAME (type
, field
)));
1315 unsigned field_len
= TYPE_FIELD_BITSIZE (type
, field
);
1317 = val
>> (TYPE_FIELD_BITPOS (type
, field
) - field_len
+ 1);
1319 if (field_len
< sizeof (ULONGEST
) * TARGET_CHAR_BIT
)
1320 field_val
&= ((ULONGEST
) 1 << field_len
) - 1;
1321 fprintf_filtered (stream
, " %ps=",
1322 styled_string (variable_name_style
.style (),
1323 TYPE_FIELD_NAME (type
, field
)));
1324 if (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
)
1325 generic_val_print_enum_1 (field_type
, field_val
, stream
);
1327 print_longest (stream
, 'd', 0, field_val
);
1331 fputs_filtered (" ]", stream
);
1334 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1335 according to OPTIONS and SIZE on STREAM. Format i is not supported
1338 This is how the elements of an array or structure are printed
1342 val_print_scalar_formatted (struct type
*type
,
1343 LONGEST embedded_offset
,
1345 const struct value_print_options
*options
,
1347 struct ui_file
*stream
)
1349 struct gdbarch
*arch
= get_type_arch (type
);
1350 int unit_size
= gdbarch_addressable_memory_unit_size (arch
);
1352 gdb_assert (val
!= NULL
);
1354 /* If we get here with a string format, try again without it. Go
1355 all the way back to the language printers, which may call us
1357 if (options
->format
== 's')
1359 struct value_print_options opts
= *options
;
1362 val_print (type
, embedded_offset
, 0, stream
, 0, val
, &opts
,
1367 /* value_contents_for_printing fetches all VAL's contents. They are
1368 needed to check whether VAL is optimized-out or unavailable
1370 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
1372 /* A scalar object that does not have all bits available can't be
1373 printed, because all bits contribute to its representation. */
1374 if (value_bits_any_optimized_out (val
,
1375 TARGET_CHAR_BIT
* embedded_offset
,
1376 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
1377 val_print_optimized_out (val
, stream
);
1378 else if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
1379 val_print_unavailable (stream
);
1381 print_scalar_formatted (valaddr
+ embedded_offset
* unit_size
, type
,
1382 options
, size
, stream
);
1385 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1386 The raison d'etre of this function is to consolidate printing of
1387 LONG_LONG's into this one function. The format chars b,h,w,g are
1388 from print_scalar_formatted(). Numbers are printed using C
1391 USE_C_FORMAT means to use C format in all cases. Without it,
1392 'o' and 'x' format do not include the standard C radix prefix
1395 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1396 and was intended to request formatting according to the current
1397 language and would be used for most integers that GDB prints. The
1398 exceptional cases were things like protocols where the format of
1399 the integer is a protocol thing, not a user-visible thing). The
1400 parameter remains to preserve the information of what things might
1401 be printed with language-specific format, should we ever resurrect
1405 print_longest (struct ui_file
*stream
, int format
, int use_c_format
,
1413 val
= int_string (val_long
, 10, 1, 0, 1); break;
1415 val
= int_string (val_long
, 10, 0, 0, 1); break;
1417 val
= int_string (val_long
, 16, 0, 0, use_c_format
); break;
1419 val
= int_string (val_long
, 16, 0, 2, 1); break;
1421 val
= int_string (val_long
, 16, 0, 4, 1); break;
1423 val
= int_string (val_long
, 16, 0, 8, 1); break;
1425 val
= int_string (val_long
, 16, 0, 16, 1); break;
1428 val
= int_string (val_long
, 8, 0, 0, use_c_format
); break;
1430 internal_error (__FILE__
, __LINE__
,
1431 _("failed internal consistency check"));
1433 fputs_filtered (val
, stream
);
1436 /* This used to be a macro, but I don't think it is called often enough
1437 to merit such treatment. */
1438 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1439 arguments to a function, number in a value history, register number, etc.)
1440 where the value must not be larger than can fit in an int. */
1443 longest_to_int (LONGEST arg
)
1445 /* Let the compiler do the work. */
1446 int rtnval
= (int) arg
;
1448 /* Check for overflows or underflows. */
1449 if (sizeof (LONGEST
) > sizeof (int))
1453 error (_("Value out of range."));
1459 /* Print a floating point value of floating-point type TYPE,
1460 pointed to in GDB by VALADDR, on STREAM. */
1463 print_floating (const gdb_byte
*valaddr
, struct type
*type
,
1464 struct ui_file
*stream
)
1466 std::string str
= target_float_to_string (valaddr
, type
);
1467 fputs_filtered (str
.c_str (), stream
);
1471 print_binary_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1472 unsigned len
, enum bfd_endian byte_order
, bool zero_pad
)
1477 bool seen_a_one
= false;
1479 /* Declared "int" so it will be signed.
1480 This ensures that right shift will shift in zeros. */
1482 const int mask
= 0x080;
1484 if (byte_order
== BFD_ENDIAN_BIG
)
1490 /* Every byte has 8 binary characters; peel off
1491 and print from the MSB end. */
1493 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1495 if (*p
& (mask
>> i
))
1500 if (zero_pad
|| seen_a_one
|| b
== '1')
1501 fputc_filtered (b
, stream
);
1509 for (p
= valaddr
+ len
- 1;
1513 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1515 if (*p
& (mask
>> i
))
1520 if (zero_pad
|| seen_a_one
|| b
== '1')
1521 fputc_filtered (b
, stream
);
1528 /* When not zero-padding, ensure that something is printed when the
1530 if (!zero_pad
&& !seen_a_one
)
1531 fputc_filtered ('0', stream
);
1534 /* A helper for print_octal_chars that emits a single octal digit,
1535 optionally suppressing it if is zero and updating SEEN_A_ONE. */
1538 emit_octal_digit (struct ui_file
*stream
, bool *seen_a_one
, int digit
)
1540 if (*seen_a_one
|| digit
!= 0)
1541 fprintf_filtered (stream
, "%o", digit
);
1546 /* VALADDR points to an integer of LEN bytes.
1547 Print it in octal on stream or format it in buf. */
1550 print_octal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1551 unsigned len
, enum bfd_endian byte_order
)
1554 unsigned char octa1
, octa2
, octa3
, carry
;
1557 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1558 * the extra bits, which cycle every three bytes:
1560 * Byte side: 0 1 2 3
1562 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1564 * Octal side: 0 1 carry 3 4 carry ...
1566 * Cycle number: 0 1 2
1568 * But of course we are printing from the high side, so we have to
1569 * figure out where in the cycle we are so that we end up with no
1570 * left over bits at the end.
1572 #define BITS_IN_OCTAL 3
1573 #define HIGH_ZERO 0340
1574 #define LOW_ZERO 0034
1575 #define CARRY_ZERO 0003
1576 static_assert (HIGH_ZERO
+ LOW_ZERO
+ CARRY_ZERO
== 0xff,
1577 "cycle zero constants are wrong");
1578 #define HIGH_ONE 0200
1579 #define MID_ONE 0160
1580 #define LOW_ONE 0016
1581 #define CARRY_ONE 0001
1582 static_assert (HIGH_ONE
+ MID_ONE
+ LOW_ONE
+ CARRY_ONE
== 0xff,
1583 "cycle one constants are wrong");
1584 #define HIGH_TWO 0300
1585 #define MID_TWO 0070
1586 #define LOW_TWO 0007
1587 static_assert (HIGH_TWO
+ MID_TWO
+ LOW_TWO
== 0xff,
1588 "cycle two constants are wrong");
1590 /* For 32 we start in cycle 2, with two bits and one bit carry;
1591 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1593 cycle
= (len
* HOST_CHAR_BIT
) % BITS_IN_OCTAL
;
1596 fputs_filtered ("0", stream
);
1597 bool seen_a_one
= false;
1598 if (byte_order
== BFD_ENDIAN_BIG
)
1607 /* No carry in, carry out two bits. */
1609 octa1
= (HIGH_ZERO
& *p
) >> 5;
1610 octa2
= (LOW_ZERO
& *p
) >> 2;
1611 carry
= (CARRY_ZERO
& *p
);
1612 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1613 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1617 /* Carry in two bits, carry out one bit. */
1619 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1620 octa2
= (MID_ONE
& *p
) >> 4;
1621 octa3
= (LOW_ONE
& *p
) >> 1;
1622 carry
= (CARRY_ONE
& *p
);
1623 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1624 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1625 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1629 /* Carry in one bit, no carry out. */
1631 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1632 octa2
= (MID_TWO
& *p
) >> 3;
1633 octa3
= (LOW_TWO
& *p
);
1635 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1636 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1637 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1641 error (_("Internal error in octal conversion;"));
1645 cycle
= cycle
% BITS_IN_OCTAL
;
1650 for (p
= valaddr
+ len
- 1;
1657 /* Carry out, no carry in */
1659 octa1
= (HIGH_ZERO
& *p
) >> 5;
1660 octa2
= (LOW_ZERO
& *p
) >> 2;
1661 carry
= (CARRY_ZERO
& *p
);
1662 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1663 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1667 /* Carry in, carry out */
1669 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1670 octa2
= (MID_ONE
& *p
) >> 4;
1671 octa3
= (LOW_ONE
& *p
) >> 1;
1672 carry
= (CARRY_ONE
& *p
);
1673 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1674 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1675 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1679 /* Carry in, no carry out */
1681 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1682 octa2
= (MID_TWO
& *p
) >> 3;
1683 octa3
= (LOW_TWO
& *p
);
1685 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1686 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1687 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1691 error (_("Internal error in octal conversion;"));
1695 cycle
= cycle
% BITS_IN_OCTAL
;
1701 /* Possibly negate the integer represented by BYTES. It contains LEN
1702 bytes in the specified byte order. If the integer is negative,
1703 copy it into OUT_VEC, negate it, and return true. Otherwise, do
1704 nothing and return false. */
1707 maybe_negate_by_bytes (const gdb_byte
*bytes
, unsigned len
,
1708 enum bfd_endian byte_order
,
1709 gdb::byte_vector
*out_vec
)
1712 gdb_assert (len
> 0);
1713 if (byte_order
== BFD_ENDIAN_BIG
)
1714 sign_byte
= bytes
[0];
1716 sign_byte
= bytes
[len
- 1];
1717 if ((sign_byte
& 0x80) == 0)
1720 out_vec
->resize (len
);
1722 /* Compute -x == 1 + ~x. */
1723 if (byte_order
== BFD_ENDIAN_LITTLE
)
1726 for (unsigned i
= 0; i
< len
; ++i
)
1728 unsigned tem
= (0xff & ~bytes
[i
]) + carry
;
1729 (*out_vec
)[i
] = tem
& 0xff;
1736 for (unsigned i
= len
; i
> 0; --i
)
1738 unsigned tem
= (0xff & ~bytes
[i
- 1]) + carry
;
1739 (*out_vec
)[i
- 1] = tem
& 0xff;
1747 /* VALADDR points to an integer of LEN bytes.
1748 Print it in decimal on stream or format it in buf. */
1751 print_decimal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1752 unsigned len
, bool is_signed
,
1753 enum bfd_endian byte_order
)
1756 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1757 #define CARRY_LEFT( x ) ((x) % TEN)
1758 #define SHIFT( x ) ((x) << 4)
1759 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1760 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1765 int i
, j
, decimal_digits
;
1769 gdb::byte_vector negated_bytes
;
1771 && maybe_negate_by_bytes (valaddr
, len
, byte_order
, &negated_bytes
))
1773 fputs_filtered ("-", stream
);
1774 valaddr
= negated_bytes
.data ();
1777 /* Base-ten number is less than twice as many digits
1778 as the base 16 number, which is 2 digits per byte. */
1780 decimal_len
= len
* 2 * 2;
1781 std::vector
<unsigned char> digits (decimal_len
, 0);
1783 /* Ok, we have an unknown number of bytes of data to be printed in
1786 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1787 * decimalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1788 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1790 * The trick is that "digits" holds a base-10 number, but sometimes
1791 * the individual digits are > 10.
1793 * Outer loop is per nibble (hex digit) of input, from MSD end to
1796 decimal_digits
= 0; /* Number of decimal digits so far */
1797 p
= (byte_order
== BFD_ENDIAN_BIG
) ? valaddr
: valaddr
+ len
- 1;
1799 while ((byte_order
== BFD_ENDIAN_BIG
) ? (p
< valaddr
+ len
) : (p
>= valaddr
))
1802 * Multiply current base-ten number by 16 in place.
1803 * Each digit was between 0 and 9, now is between
1806 for (j
= 0; j
< decimal_digits
; j
++)
1808 digits
[j
] = SHIFT (digits
[j
]);
1811 /* Take the next nibble off the input and add it to what
1812 * we've got in the LSB position. Bottom 'digit' is now
1813 * between 0 and 159.
1815 * "flip" is used to run this loop twice for each byte.
1819 /* Take top nibble. */
1821 digits
[0] += HIGH_NIBBLE (*p
);
1826 /* Take low nibble and bump our pointer "p". */
1828 digits
[0] += LOW_NIBBLE (*p
);
1829 if (byte_order
== BFD_ENDIAN_BIG
)
1836 /* Re-decimalize. We have to do this often enough
1837 * that we don't overflow, but once per nibble is
1838 * overkill. Easier this way, though. Note that the
1839 * carry is often larger than 10 (e.g. max initial
1840 * carry out of lowest nibble is 15, could bubble all
1841 * the way up greater than 10). So we have to do
1842 * the carrying beyond the last current digit.
1845 for (j
= 0; j
< decimal_len
- 1; j
++)
1849 /* "/" won't handle an unsigned char with
1850 * a value that if signed would be negative.
1851 * So extend to longword int via "dummy".
1854 carry
= CARRY_OUT (dummy
);
1855 digits
[j
] = CARRY_LEFT (dummy
);
1857 if (j
>= decimal_digits
&& carry
== 0)
1860 * All higher digits are 0 and we
1861 * no longer have a carry.
1863 * Note: "j" is 0-based, "decimal_digits" is
1866 decimal_digits
= j
+ 1;
1872 /* Ok, now "digits" is the decimal representation, with
1873 the "decimal_digits" actual digits. Print! */
1875 for (i
= decimal_digits
- 1; i
> 0 && digits
[i
] == 0; --i
)
1880 fprintf_filtered (stream
, "%1d", digits
[i
]);
1884 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1887 print_hex_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1888 unsigned len
, enum bfd_endian byte_order
,
1893 fputs_filtered ("0x", stream
);
1894 if (byte_order
== BFD_ENDIAN_BIG
)
1900 /* Strip leading 0 bytes, but be sure to leave at least a
1901 single byte at the end. */
1902 for (; p
< valaddr
+ len
- 1 && !*p
; ++p
)
1906 const gdb_byte
*first
= p
;
1911 /* When not zero-padding, use a different format for the
1912 very first byte printed. */
1913 if (!zero_pad
&& p
== first
)
1914 fprintf_filtered (stream
, "%x", *p
);
1916 fprintf_filtered (stream
, "%02x", *p
);
1921 p
= valaddr
+ len
- 1;
1925 /* Strip leading 0 bytes, but be sure to leave at least a
1926 single byte at the end. */
1927 for (; p
>= valaddr
+ 1 && !*p
; --p
)
1931 const gdb_byte
*first
= p
;
1936 /* When not zero-padding, use a different format for the
1937 very first byte printed. */
1938 if (!zero_pad
&& p
== first
)
1939 fprintf_filtered (stream
, "%x", *p
);
1941 fprintf_filtered (stream
, "%02x", *p
);
1946 /* VALADDR points to a char integer of LEN bytes.
1947 Print it out in appropriate language form on stream.
1948 Omit any leading zero chars. */
1951 print_char_chars (struct ui_file
*stream
, struct type
*type
,
1952 const gdb_byte
*valaddr
,
1953 unsigned len
, enum bfd_endian byte_order
)
1957 if (byte_order
== BFD_ENDIAN_BIG
)
1960 while (p
< valaddr
+ len
- 1 && *p
== 0)
1963 while (p
< valaddr
+ len
)
1965 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1971 p
= valaddr
+ len
- 1;
1972 while (p
> valaddr
&& *p
== 0)
1975 while (p
>= valaddr
)
1977 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
1983 /* Print function pointer with inferior address ADDRESS onto stdio
1987 print_function_pointer_address (const struct value_print_options
*options
,
1988 struct gdbarch
*gdbarch
,
1990 struct ui_file
*stream
)
1993 = gdbarch_convert_from_func_ptr_addr (gdbarch
, address
,
1994 current_top_target ());
1996 /* If the function pointer is represented by a description, print
1997 the address of the description. */
1998 if (options
->addressprint
&& func_addr
!= address
)
2000 fputs_filtered ("@", stream
);
2001 fputs_filtered (paddress (gdbarch
, address
), stream
);
2002 fputs_filtered (": ", stream
);
2004 print_address_demangle (options
, gdbarch
, func_addr
, stream
, demangle
);
2008 /* Print on STREAM using the given OPTIONS the index for the element
2009 at INDEX of an array whose index type is INDEX_TYPE. */
2012 maybe_print_array_index (struct type
*index_type
, LONGEST index
,
2013 struct ui_file
*stream
,
2014 const struct value_print_options
*options
)
2016 struct value
*index_value
;
2018 if (!options
->print_array_indexes
)
2021 index_value
= value_from_longest (index_type
, index
);
2023 LA_PRINT_ARRAY_INDEX (index_value
, stream
, options
);
2026 /* Called by various <lang>_val_print routines to print elements of an
2027 array in the form "<elem1>, <elem2>, <elem3>, ...".
2029 (FIXME?) Assumes array element separator is a comma, which is correct
2030 for all languages currently handled.
2031 (FIXME?) Some languages have a notation for repeated array elements,
2032 perhaps we should try to use that notation when appropriate. */
2035 val_print_array_elements (struct type
*type
,
2036 LONGEST embedded_offset
,
2037 CORE_ADDR address
, struct ui_file
*stream
,
2040 const struct value_print_options
*options
,
2043 unsigned int things_printed
= 0;
2045 struct type
*elttype
, *index_type
, *base_index_type
;
2047 /* Position of the array element we are examining to see
2048 whether it is repeated. */
2050 /* Number of repetitions we have detected so far. */
2052 LONGEST low_bound
, high_bound
;
2053 LONGEST low_pos
, high_pos
;
2055 elttype
= TYPE_TARGET_TYPE (type
);
2056 eltlen
= type_length_units (check_typedef (elttype
));
2057 index_type
= TYPE_INDEX_TYPE (type
);
2059 if (get_array_bounds (type
, &low_bound
, &high_bound
))
2061 if (TYPE_CODE (index_type
) == TYPE_CODE_RANGE
)
2062 base_index_type
= TYPE_TARGET_TYPE (index_type
);
2064 base_index_type
= index_type
;
2066 /* Non-contiguous enumerations types can by used as index types
2067 in some languages (e.g. Ada). In this case, the array length
2068 shall be computed from the positions of the first and last
2069 literal in the enumeration type, and not from the values
2070 of these literals. */
2071 if (!discrete_position (base_index_type
, low_bound
, &low_pos
)
2072 || !discrete_position (base_index_type
, high_bound
, &high_pos
))
2074 warning (_("unable to get positions in array, use bounds instead"));
2075 low_pos
= low_bound
;
2076 high_pos
= high_bound
;
2079 /* The array length should normally be HIGH_POS - LOW_POS + 1.
2080 But we have to be a little extra careful, because some languages
2081 such as Ada allow LOW_POS to be greater than HIGH_POS for
2082 empty arrays. In that situation, the array length is just zero,
2084 if (low_pos
> high_pos
)
2087 len
= high_pos
- low_pos
+ 1;
2091 warning (_("unable to get bounds of array, assuming null array"));
2096 annotate_array_section_begin (i
, elttype
);
2098 for (; i
< len
&& things_printed
< options
->print_max
; i
++)
2102 if (options
->prettyformat_arrays
)
2104 fprintf_filtered (stream
, ",\n");
2105 print_spaces_filtered (2 + 2 * recurse
, stream
);
2109 fprintf_filtered (stream
, ", ");
2112 wrap_here (n_spaces (2 + 2 * recurse
));
2113 maybe_print_array_index (index_type
, i
+ low_bound
,
2118 /* Only check for reps if repeat_count_threshold is not set to
2119 UINT_MAX (unlimited). */
2120 if (options
->repeat_count_threshold
< UINT_MAX
)
2123 && value_contents_eq (val
,
2124 embedded_offset
+ i
* eltlen
,
2135 if (reps
> options
->repeat_count_threshold
)
2137 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2138 address
, stream
, recurse
+ 1, val
, options
,
2140 annotate_elt_rep (reps
);
2141 fprintf_filtered (stream
, " %p[<repeats %u times>%p]",
2142 metadata_style
.style ().ptr (), reps
, nullptr);
2143 annotate_elt_rep_end ();
2146 things_printed
+= options
->repeat_count_threshold
;
2150 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2152 stream
, recurse
+ 1, val
, options
, current_language
);
2157 annotate_array_section_end ();
2160 fprintf_filtered (stream
, "...");
2164 /* Read LEN bytes of target memory at address MEMADDR, placing the
2165 results in GDB's memory at MYADDR. Returns a count of the bytes
2166 actually read, and optionally a target_xfer_status value in the
2167 location pointed to by ERRPTR if ERRPTR is non-null. */
2169 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
2170 function be eliminated. */
2173 partial_memory_read (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
2174 int len
, int *errptr
)
2176 int nread
; /* Number of bytes actually read. */
2177 int errcode
; /* Error from last read. */
2179 /* First try a complete read. */
2180 errcode
= target_read_memory (memaddr
, myaddr
, len
);
2188 /* Loop, reading one byte at a time until we get as much as we can. */
2189 for (errcode
= 0, nread
= 0; len
> 0 && errcode
== 0; nread
++, len
--)
2191 errcode
= target_read_memory (memaddr
++, myaddr
++, 1);
2193 /* If an error, the last read was unsuccessful, so adjust count. */
2206 /* Read a string from the inferior, at ADDR, with LEN characters of
2207 WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER
2208 will be set to a newly allocated buffer containing the string, and
2209 BYTES_READ will be set to the number of bytes read. Returns 0 on
2210 success, or a target_xfer_status on failure.
2212 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
2213 (including eventual NULs in the middle or end of the string).
2215 If LEN is -1, stops at the first null character (not necessarily
2216 the first null byte) up to a maximum of FETCHLIMIT characters. Set
2217 FETCHLIMIT to UINT_MAX to read as many characters as possible from
2220 Unless an exception is thrown, BUFFER will always be allocated, even on
2221 failure. In this case, some characters might have been read before the
2222 failure happened. Check BYTES_READ to recognize this situation.
2224 Note: There was a FIXME asking to make this code use target_read_string,
2225 but this function is more general (can read past null characters, up to
2226 given LEN). Besides, it is used much more often than target_read_string
2227 so it is more tested. Perhaps callers of target_read_string should use
2228 this function instead? */
2231 read_string (CORE_ADDR addr
, int len
, int width
, unsigned int fetchlimit
,
2232 enum bfd_endian byte_order
, gdb::unique_xmalloc_ptr
<gdb_byte
> *buffer
,
2235 int errcode
; /* Errno returned from bad reads. */
2236 unsigned int nfetch
; /* Chars to fetch / chars fetched. */
2237 gdb_byte
*bufptr
; /* Pointer to next available byte in
2240 /* Loop until we either have all the characters, or we encounter
2241 some error, such as bumping into the end of the address space. */
2243 buffer
->reset (nullptr);
2247 /* We want fetchlimit chars, so we might as well read them all in
2249 unsigned int fetchlen
= std::min ((unsigned) len
, fetchlimit
);
2251 buffer
->reset ((gdb_byte
*) xmalloc (fetchlen
* width
));
2252 bufptr
= buffer
->get ();
2254 nfetch
= partial_memory_read (addr
, bufptr
, fetchlen
* width
, &errcode
)
2256 addr
+= nfetch
* width
;
2257 bufptr
+= nfetch
* width
;
2261 unsigned long bufsize
= 0;
2262 unsigned int chunksize
; /* Size of each fetch, in chars. */
2263 int found_nul
; /* Non-zero if we found the nul char. */
2264 gdb_byte
*limit
; /* First location past end of fetch buffer. */
2267 /* We are looking for a NUL terminator to end the fetching, so we
2268 might as well read in blocks that are large enough to be efficient,
2269 but not so large as to be slow if fetchlimit happens to be large.
2270 So we choose the minimum of 8 and fetchlimit. We used to use 200
2271 instead of 8 but 200 is way too big for remote debugging over a
2273 chunksize
= std::min (8u, fetchlimit
);
2278 nfetch
= std::min ((unsigned long) chunksize
, fetchlimit
- bufsize
);
2280 if (*buffer
== NULL
)
2281 buffer
->reset ((gdb_byte
*) xmalloc (nfetch
* width
));
2283 buffer
->reset ((gdb_byte
*) xrealloc (buffer
->release (),
2284 (nfetch
+ bufsize
) * width
));
2286 bufptr
= buffer
->get () + bufsize
* width
;
2289 /* Read as much as we can. */
2290 nfetch
= partial_memory_read (addr
, bufptr
, nfetch
* width
, &errcode
)
2293 /* Scan this chunk for the null character that terminates the string
2294 to print. If found, we don't need to fetch any more. Note
2295 that bufptr is explicitly left pointing at the next character
2296 after the null character, or at the next character after the end
2299 limit
= bufptr
+ nfetch
* width
;
2300 while (bufptr
< limit
)
2304 c
= extract_unsigned_integer (bufptr
, width
, byte_order
);
2309 /* We don't care about any error which happened after
2310 the NUL terminator. */
2317 while (errcode
== 0 /* no error */
2318 && bufptr
- buffer
->get () < fetchlimit
* width
/* no overrun */
2319 && !found_nul
); /* haven't found NUL yet */
2322 { /* Length of string is really 0! */
2323 /* We always allocate *buffer. */
2324 buffer
->reset ((gdb_byte
*) xmalloc (1));
2325 bufptr
= buffer
->get ();
2329 /* bufptr and addr now point immediately beyond the last byte which we
2330 consider part of the string (including a '\0' which ends the string). */
2331 *bytes_read
= bufptr
- buffer
->get ();
2338 /* Return true if print_wchar can display W without resorting to a
2339 numeric escape, false otherwise. */
2342 wchar_printable (gdb_wchar_t w
)
2344 return (gdb_iswprint (w
)
2345 || w
== LCST ('\a') || w
== LCST ('\b')
2346 || w
== LCST ('\f') || w
== LCST ('\n')
2347 || w
== LCST ('\r') || w
== LCST ('\t')
2348 || w
== LCST ('\v'));
2351 /* A helper function that converts the contents of STRING to wide
2352 characters and then appends them to OUTPUT. */
2355 append_string_as_wide (const char *string
,
2356 struct obstack
*output
)
2358 for (; *string
; ++string
)
2360 gdb_wchar_t w
= gdb_btowc (*string
);
2361 obstack_grow (output
, &w
, sizeof (gdb_wchar_t
));
2365 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2366 original (target) bytes representing the character, ORIG_LEN is the
2367 number of valid bytes. WIDTH is the number of bytes in a base
2368 characters of the type. OUTPUT is an obstack to which wide
2369 characters are emitted. QUOTER is a (narrow) character indicating
2370 the style of quotes surrounding the character to be printed.
2371 NEED_ESCAPE is an in/out flag which is used to track numeric
2372 escapes across calls. */
2375 print_wchar (gdb_wint_t w
, const gdb_byte
*orig
,
2376 int orig_len
, int width
,
2377 enum bfd_endian byte_order
,
2378 struct obstack
*output
,
2379 int quoter
, int *need_escapep
)
2381 int need_escape
= *need_escapep
;
2385 /* iswprint implementation on Windows returns 1 for tab character.
2386 In order to avoid different printout on this host, we explicitly
2387 use wchar_printable function. */
2391 obstack_grow_wstr (output
, LCST ("\\a"));
2394 obstack_grow_wstr (output
, LCST ("\\b"));
2397 obstack_grow_wstr (output
, LCST ("\\f"));
2400 obstack_grow_wstr (output
, LCST ("\\n"));
2403 obstack_grow_wstr (output
, LCST ("\\r"));
2406 obstack_grow_wstr (output
, LCST ("\\t"));
2409 obstack_grow_wstr (output
, LCST ("\\v"));
2413 if (wchar_printable (w
) && (!need_escape
|| (!gdb_iswdigit (w
)
2415 && w
!= LCST ('9'))))
2417 gdb_wchar_t wchar
= w
;
2419 if (w
== gdb_btowc (quoter
) || w
== LCST ('\\'))
2420 obstack_grow_wstr (output
, LCST ("\\"));
2421 obstack_grow (output
, &wchar
, sizeof (gdb_wchar_t
));
2427 for (i
= 0; i
+ width
<= orig_len
; i
+= width
)
2432 value
= extract_unsigned_integer (&orig
[i
], width
,
2434 /* If the value fits in 3 octal digits, print it that
2435 way. Otherwise, print it as a hex escape. */
2437 xsnprintf (octal
, sizeof (octal
), "\\%.3o",
2438 (int) (value
& 0777));
2440 xsnprintf (octal
, sizeof (octal
), "\\x%lx", (long) value
);
2441 append_string_as_wide (octal
, output
);
2443 /* If we somehow have extra bytes, print them now. */
2444 while (i
< orig_len
)
2448 xsnprintf (octal
, sizeof (octal
), "\\%.3o", orig
[i
] & 0xff);
2449 append_string_as_wide (octal
, output
);
2460 /* Print the character C on STREAM as part of the contents of a
2461 literal string whose delimiter is QUOTER. ENCODING names the
2465 generic_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
2466 int quoter
, const char *encoding
)
2468 enum bfd_endian byte_order
2469 = type_byte_order (type
);
2471 int need_escape
= 0;
2473 c_buf
= (gdb_byte
*) alloca (TYPE_LENGTH (type
));
2474 pack_long (c_buf
, type
, c
);
2476 wchar_iterator
iter (c_buf
, TYPE_LENGTH (type
), encoding
, TYPE_LENGTH (type
));
2478 /* This holds the printable form of the wchar_t data. */
2479 auto_obstack wchar_buf
;
2485 const gdb_byte
*buf
;
2487 int print_escape
= 1;
2488 enum wchar_iterate_result result
;
2490 num_chars
= iter
.iterate (&result
, &chars
, &buf
, &buflen
);
2495 /* If all characters are printable, print them. Otherwise,
2496 we're going to have to print an escape sequence. We
2497 check all characters because we want to print the target
2498 bytes in the escape sequence, and we don't know character
2499 boundaries there. */
2503 for (i
= 0; i
< num_chars
; ++i
)
2504 if (!wchar_printable (chars
[i
]))
2512 for (i
= 0; i
< num_chars
; ++i
)
2513 print_wchar (chars
[i
], buf
, buflen
,
2514 TYPE_LENGTH (type
), byte_order
,
2515 &wchar_buf
, quoter
, &need_escape
);
2519 /* This handles the NUM_CHARS == 0 case as well. */
2521 print_wchar (gdb_WEOF
, buf
, buflen
, TYPE_LENGTH (type
),
2522 byte_order
, &wchar_buf
, quoter
, &need_escape
);
2525 /* The output in the host encoding. */
2526 auto_obstack output
;
2528 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2529 (gdb_byte
*) obstack_base (&wchar_buf
),
2530 obstack_object_size (&wchar_buf
),
2531 sizeof (gdb_wchar_t
), &output
, translit_char
);
2532 obstack_1grow (&output
, '\0');
2534 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2537 /* Return the repeat count of the next character/byte in ITER,
2538 storing the result in VEC. */
2541 count_next_character (wchar_iterator
*iter
,
2542 std::vector
<converted_character
> *vec
)
2544 struct converted_character
*current
;
2548 struct converted_character tmp
;
2552 = iter
->iterate (&tmp
.result
, &chars
, &tmp
.buf
, &tmp
.buflen
);
2553 if (tmp
.num_chars
> 0)
2555 gdb_assert (tmp
.num_chars
< MAX_WCHARS
);
2556 memcpy (tmp
.chars
, chars
, tmp
.num_chars
* sizeof (gdb_wchar_t
));
2558 vec
->push_back (tmp
);
2561 current
= &vec
->back ();
2563 /* Count repeated characters or bytes. */
2564 current
->repeat_count
= 1;
2565 if (current
->num_chars
== -1)
2573 struct converted_character d
;
2580 /* Get the next character. */
2581 d
.num_chars
= iter
->iterate (&d
.result
, &chars
, &d
.buf
, &d
.buflen
);
2583 /* If a character was successfully converted, save the character
2584 into the converted character. */
2585 if (d
.num_chars
> 0)
2587 gdb_assert (d
.num_chars
< MAX_WCHARS
);
2588 memcpy (d
.chars
, chars
, WCHAR_BUFLEN (d
.num_chars
));
2591 /* Determine if the current character is the same as this
2593 if (d
.num_chars
== current
->num_chars
&& d
.result
== current
->result
)
2595 /* There are two cases to consider:
2597 1) Equality of converted character (num_chars > 0)
2598 2) Equality of non-converted character (num_chars == 0) */
2599 if ((current
->num_chars
> 0
2600 && memcmp (current
->chars
, d
.chars
,
2601 WCHAR_BUFLEN (current
->num_chars
)) == 0)
2602 || (current
->num_chars
== 0
2603 && current
->buflen
== d
.buflen
2604 && memcmp (current
->buf
, d
.buf
, current
->buflen
) == 0))
2605 ++current
->repeat_count
;
2613 /* Push this next converted character onto the result vector. */
2614 repeat
= current
->repeat_count
;
2620 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2621 character to use with string output. WIDTH is the size of the output
2622 character type. BYTE_ORDER is the target byte order. OPTIONS
2623 is the user's print options. */
2626 print_converted_chars_to_obstack (struct obstack
*obstack
,
2627 const std::vector
<converted_character
> &chars
,
2628 int quote_char
, int width
,
2629 enum bfd_endian byte_order
,
2630 const struct value_print_options
*options
)
2633 const converted_character
*elem
;
2634 enum {START
, SINGLE
, REPEAT
, INCOMPLETE
, FINISH
} state
, last
;
2635 gdb_wchar_t wide_quote_char
= gdb_btowc (quote_char
);
2636 int need_escape
= 0;
2638 /* Set the start state. */
2640 last
= state
= START
;
2648 /* Nothing to do. */
2655 /* We are outputting a single character
2656 (< options->repeat_count_threshold). */
2660 /* We were outputting some other type of content, so we
2661 must output and a comma and a quote. */
2663 obstack_grow_wstr (obstack
, LCST (", "));
2664 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2666 /* Output the character. */
2667 for (j
= 0; j
< elem
->repeat_count
; ++j
)
2669 if (elem
->result
== wchar_iterate_ok
)
2670 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2671 byte_order
, obstack
, quote_char
, &need_escape
);
2673 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2674 byte_order
, obstack
, quote_char
, &need_escape
);
2683 /* We are outputting a character with a repeat count
2684 greater than options->repeat_count_threshold. */
2688 /* We were outputting a single string. Terminate the
2690 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2693 obstack_grow_wstr (obstack
, LCST (", "));
2695 /* Output the character and repeat string. */
2696 obstack_grow_wstr (obstack
, LCST ("'"));
2697 if (elem
->result
== wchar_iterate_ok
)
2698 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2699 byte_order
, obstack
, quote_char
, &need_escape
);
2701 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2702 byte_order
, obstack
, quote_char
, &need_escape
);
2703 obstack_grow_wstr (obstack
, LCST ("'"));
2704 std::string s
= string_printf (_(" <repeats %u times>"),
2705 elem
->repeat_count
);
2706 for (j
= 0; s
[j
]; ++j
)
2708 gdb_wchar_t w
= gdb_btowc (s
[j
]);
2709 obstack_grow (obstack
, &w
, sizeof (gdb_wchar_t
));
2715 /* We are outputting an incomplete sequence. */
2718 /* If we were outputting a string of SINGLE characters,
2719 terminate the quote. */
2720 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2723 obstack_grow_wstr (obstack
, LCST (", "));
2725 /* Output the incomplete sequence string. */
2726 obstack_grow_wstr (obstack
, LCST ("<incomplete sequence "));
2727 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
, byte_order
,
2728 obstack
, 0, &need_escape
);
2729 obstack_grow_wstr (obstack
, LCST (">"));
2731 /* We do not attempt to output anything after this. */
2736 /* All done. If we were outputting a string of SINGLE
2737 characters, the string must be terminated. Otherwise,
2738 REPEAT and INCOMPLETE are always left properly terminated. */
2740 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2745 /* Get the next element and state. */
2747 if (state
!= FINISH
)
2749 elem
= &chars
[idx
++];
2750 switch (elem
->result
)
2752 case wchar_iterate_ok
:
2753 case wchar_iterate_invalid
:
2754 if (elem
->repeat_count
> options
->repeat_count_threshold
)
2760 case wchar_iterate_incomplete
:
2764 case wchar_iterate_eof
:
2772 /* Print the character string STRING, printing at most LENGTH
2773 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2774 the type of each character. OPTIONS holds the printing options;
2775 printing stops early if the number hits print_max; repeat counts
2776 are printed as appropriate. Print ellipses at the end if we had to
2777 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2778 QUOTE_CHAR is the character to print at each end of the string. If
2779 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2783 generic_printstr (struct ui_file
*stream
, struct type
*type
,
2784 const gdb_byte
*string
, unsigned int length
,
2785 const char *encoding
, int force_ellipses
,
2786 int quote_char
, int c_style_terminator
,
2787 const struct value_print_options
*options
)
2789 enum bfd_endian byte_order
= type_byte_order (type
);
2791 int width
= TYPE_LENGTH (type
);
2793 struct converted_character
*last
;
2797 unsigned long current_char
= 1;
2799 for (i
= 0; current_char
; ++i
)
2802 current_char
= extract_unsigned_integer (string
+ i
* width
,
2808 /* If the string was not truncated due to `set print elements', and
2809 the last byte of it is a null, we don't print that, in
2810 traditional C style. */
2811 if (c_style_terminator
2814 && (extract_unsigned_integer (string
+ (length
- 1) * width
,
2815 width
, byte_order
) == 0))
2820 fputs_filtered ("\"\"", stream
);
2824 /* Arrange to iterate over the characters, in wchar_t form. */
2825 wchar_iterator
iter (string
, length
* width
, encoding
, width
);
2826 std::vector
<converted_character
> converted_chars
;
2828 /* Convert characters until the string is over or the maximum
2829 number of printed characters has been reached. */
2831 while (i
< options
->print_max
)
2837 /* Grab the next character and repeat count. */
2838 r
= count_next_character (&iter
, &converted_chars
);
2840 /* If less than zero, the end of the input string was reached. */
2844 /* Otherwise, add the count to the total print count and get
2845 the next character. */
2849 /* Get the last element and determine if the entire string was
2851 last
= &converted_chars
.back ();
2852 finished
= (last
->result
== wchar_iterate_eof
);
2854 /* Ensure that CONVERTED_CHARS is terminated. */
2855 last
->result
= wchar_iterate_eof
;
2857 /* WCHAR_BUF is the obstack we use to represent the string in
2859 auto_obstack wchar_buf
;
2861 /* Print the output string to the obstack. */
2862 print_converted_chars_to_obstack (&wchar_buf
, converted_chars
, quote_char
,
2863 width
, byte_order
, options
);
2865 if (force_ellipses
|| !finished
)
2866 obstack_grow_wstr (&wchar_buf
, LCST ("..."));
2868 /* OUTPUT is where we collect `char's for printing. */
2869 auto_obstack output
;
2871 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2872 (gdb_byte
*) obstack_base (&wchar_buf
),
2873 obstack_object_size (&wchar_buf
),
2874 sizeof (gdb_wchar_t
), &output
, translit_char
);
2875 obstack_1grow (&output
, '\0');
2877 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2880 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2881 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2882 stops at the first null byte, otherwise printing proceeds (including null
2883 bytes) until either print_max or LEN characters have been printed,
2884 whichever is smaller. ENCODING is the name of the string's
2885 encoding. It can be NULL, in which case the target encoding is
2889 val_print_string (struct type
*elttype
, const char *encoding
,
2890 CORE_ADDR addr
, int len
,
2891 struct ui_file
*stream
,
2892 const struct value_print_options
*options
)
2894 int force_ellipsis
= 0; /* Force ellipsis to be printed if nonzero. */
2895 int err
; /* Non-zero if we got a bad read. */
2896 int found_nul
; /* Non-zero if we found the nul char. */
2897 unsigned int fetchlimit
; /* Maximum number of chars to print. */
2899 gdb::unique_xmalloc_ptr
<gdb_byte
> buffer
; /* Dynamically growable fetch buffer. */
2900 struct gdbarch
*gdbarch
= get_type_arch (elttype
);
2901 enum bfd_endian byte_order
= type_byte_order (elttype
);
2902 int width
= TYPE_LENGTH (elttype
);
2904 /* First we need to figure out the limit on the number of characters we are
2905 going to attempt to fetch and print. This is actually pretty simple. If
2906 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2907 LEN is -1, then the limit is print_max. This is true regardless of
2908 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2909 because finding the null byte (or available memory) is what actually
2910 limits the fetch. */
2912 fetchlimit
= (len
== -1 ? options
->print_max
: std::min ((unsigned) len
,
2913 options
->print_max
));
2915 err
= read_string (addr
, len
, width
, fetchlimit
, byte_order
,
2916 &buffer
, &bytes_read
);
2920 /* We now have either successfully filled the buffer to fetchlimit,
2921 or terminated early due to an error or finding a null char when
2924 /* Determine found_nul by looking at the last character read. */
2926 if (bytes_read
>= width
)
2927 found_nul
= extract_unsigned_integer (buffer
.get () + bytes_read
- width
,
2928 width
, byte_order
) == 0;
2929 if (len
== -1 && !found_nul
)
2933 /* We didn't find a NUL terminator we were looking for. Attempt
2934 to peek at the next character. If not successful, or it is not
2935 a null byte, then force ellipsis to be printed. */
2937 peekbuf
= (gdb_byte
*) alloca (width
);
2939 if (target_read_memory (addr
, peekbuf
, width
) == 0
2940 && extract_unsigned_integer (peekbuf
, width
, byte_order
) != 0)
2943 else if ((len
>= 0 && err
!= 0) || (len
> bytes_read
/ width
))
2945 /* Getting an error when we have a requested length, or fetching less
2946 than the number of characters actually requested, always make us
2951 /* If we get an error before fetching anything, don't print a string.
2952 But if we fetch something and then get an error, print the string
2953 and then the error message. */
2954 if (err
== 0 || bytes_read
> 0)
2956 LA_PRINT_STRING (stream
, elttype
, buffer
.get (), bytes_read
/ width
,
2957 encoding
, force_ellipsis
, options
);
2962 std::string str
= memory_error_message (TARGET_XFER_E_IO
, gdbarch
, addr
);
2964 fprintf_filtered (stream
, _("<error: %ps>"),
2965 styled_string (metadata_style
.style (),
2969 return (bytes_read
/ width
);
2972 /* Handle 'show print max-depth'. */
2975 show_print_max_depth (struct ui_file
*file
, int from_tty
,
2976 struct cmd_list_element
*c
, const char *value
)
2978 fprintf_filtered (file
, _("Maximum print depth is %s.\n"), value
);
2982 /* The 'set input-radix' command writes to this auxiliary variable.
2983 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2984 it is left unchanged. */
2986 static unsigned input_radix_1
= 10;
2988 /* Validate an input or output radix setting, and make sure the user
2989 knows what they really did here. Radix setting is confusing, e.g.
2990 setting the input radix to "10" never changes it! */
2993 set_input_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
2995 set_input_radix_1 (from_tty
, input_radix_1
);
2999 set_input_radix_1 (int from_tty
, unsigned radix
)
3001 /* We don't currently disallow any input radix except 0 or 1, which don't
3002 make any mathematical sense. In theory, we can deal with any input
3003 radix greater than 1, even if we don't have unique digits for every
3004 value from 0 to radix-1, but in practice we lose on large radix values.
3005 We should either fix the lossage or restrict the radix range more.
3010 input_radix_1
= input_radix
;
3011 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
3014 input_radix_1
= input_radix
= radix
;
3017 printf_filtered (_("Input radix now set to "
3018 "decimal %u, hex %x, octal %o.\n"),
3019 radix
, radix
, radix
);
3023 /* The 'set output-radix' command writes to this auxiliary variable.
3024 If the requested radix is valid, OUTPUT_RADIX is updated,
3025 otherwise, it is left unchanged. */
3027 static unsigned output_radix_1
= 10;
3030 set_output_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
3032 set_output_radix_1 (from_tty
, output_radix_1
);
3036 set_output_radix_1 (int from_tty
, unsigned radix
)
3038 /* Validate the radix and disallow ones that we aren't prepared to
3039 handle correctly, leaving the radix unchanged. */
3043 user_print_options
.output_format
= 'x'; /* hex */
3046 user_print_options
.output_format
= 0; /* decimal */
3049 user_print_options
.output_format
= 'o'; /* octal */
3052 output_radix_1
= output_radix
;
3053 error (_("Unsupported output radix ``decimal %u''; "
3054 "output radix unchanged."),
3057 output_radix_1
= output_radix
= radix
;
3060 printf_filtered (_("Output radix now set to "
3061 "decimal %u, hex %x, octal %o.\n"),
3062 radix
, radix
, radix
);
3066 /* Set both the input and output radix at once. Try to set the output radix
3067 first, since it has the most restrictive range. An radix that is valid as
3068 an output radix is also valid as an input radix.
3070 It may be useful to have an unusual input radix. If the user wishes to
3071 set an input radix that is not valid as an output radix, he needs to use
3072 the 'set input-radix' command. */
3075 set_radix (const char *arg
, int from_tty
)
3079 radix
= (arg
== NULL
) ? 10 : parse_and_eval_long (arg
);
3080 set_output_radix_1 (0, radix
);
3081 set_input_radix_1 (0, radix
);
3084 printf_filtered (_("Input and output radices now set to "
3085 "decimal %u, hex %x, octal %o.\n"),
3086 radix
, radix
, radix
);
3090 /* Show both the input and output radices. */
3093 show_radix (const char *arg
, int from_tty
)
3097 if (input_radix
== output_radix
)
3099 printf_filtered (_("Input and output radices set to "
3100 "decimal %u, hex %x, octal %o.\n"),
3101 input_radix
, input_radix
, input_radix
);
3105 printf_filtered (_("Input radix set to decimal "
3106 "%u, hex %x, octal %o.\n"),
3107 input_radix
, input_radix
, input_radix
);
3108 printf_filtered (_("Output radix set to decimal "
3109 "%u, hex %x, octal %o.\n"),
3110 output_radix
, output_radix
, output_radix
);
3117 set_print (const char *arg
, int from_tty
)
3120 "\"set print\" must be followed by the name of a print subcommand.\n");
3121 help_list (setprintlist
, "set print ", all_commands
, gdb_stdout
);
3125 show_print (const char *args
, int from_tty
)
3127 cmd_show_list (showprintlist
, from_tty
, "");
3131 set_print_raw (const char *arg
, int from_tty
)
3134 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
3135 help_list (setprintrawlist
, "set print raw ", all_commands
, gdb_stdout
);
3139 show_print_raw (const char *args
, int from_tty
)
3141 cmd_show_list (showprintrawlist
, from_tty
, "");
3144 /* Controls printing of vtbl's. */
3146 show_vtblprint (struct ui_file
*file
, int from_tty
,
3147 struct cmd_list_element
*c
, const char *value
)
3149 fprintf_filtered (file
, _("\
3150 Printing of C++ virtual function tables is %s.\n"),
3154 /* Controls looking up an object's derived type using what we find in
3157 show_objectprint (struct ui_file
*file
, int from_tty
,
3158 struct cmd_list_element
*c
,
3161 fprintf_filtered (file
, _("\
3162 Printing of object's derived type based on vtable info is %s.\n"),
3167 show_static_field_print (struct ui_file
*file
, int from_tty
,
3168 struct cmd_list_element
*c
,
3171 fprintf_filtered (file
,
3172 _("Printing of C++ static members is %s.\n"),
3178 /* A couple typedefs to make writing the options a bit more
3180 using boolean_option_def
3181 = gdb::option::boolean_option_def
<value_print_options
>;
3182 using uinteger_option_def
3183 = gdb::option::uinteger_option_def
<value_print_options
>;
3184 using zuinteger_unlimited_option_def
3185 = gdb::option::zuinteger_unlimited_option_def
<value_print_options
>;
3187 /* Definitions of options for the "print" and "compile print"
3189 static const gdb::option::option_def value_print_option_defs
[] = {
3191 boolean_option_def
{
3193 [] (value_print_options
*opt
) { return &opt
->addressprint
; },
3194 show_addressprint
, /* show_cmd_cb */
3195 N_("Set printing of addresses."),
3196 N_("Show printing of addresses."),
3197 NULL
, /* help_doc */
3200 boolean_option_def
{
3202 [] (value_print_options
*opt
) { return &opt
->prettyformat_arrays
; },
3203 show_prettyformat_arrays
, /* show_cmd_cb */
3204 N_("Set pretty formatting of arrays."),
3205 N_("Show pretty formatting of arrays."),
3206 NULL
, /* help_doc */
3209 boolean_option_def
{
3211 [] (value_print_options
*opt
) { return &opt
->print_array_indexes
; },
3212 show_print_array_indexes
, /* show_cmd_cb */
3213 N_("Set printing of array indexes."),
3214 N_("Show printing of array indexes."),
3215 NULL
, /* help_doc */
3218 uinteger_option_def
{
3220 [] (value_print_options
*opt
) { return &opt
->print_max
; },
3221 show_print_max
, /* show_cmd_cb */
3222 N_("Set limit on string chars or array elements to print."),
3223 N_("Show limit on string chars or array elements to print."),
3224 N_("\"unlimited\" causes there to be no limit."),
3227 zuinteger_unlimited_option_def
{
3229 [] (value_print_options
*opt
) { return &opt
->max_depth
; },
3230 show_print_max_depth
, /* show_cmd_cb */
3231 N_("Set maximum print depth for nested structures, unions and arrays."),
3232 N_("Show maximum print depth for nested structures, unions, and arrays."),
3233 N_("When structures, unions, or arrays are nested beyond this depth then they\n\
3234 will be replaced with either '{...}' or '(...)' depending on the language.\n\
3235 Use \"unlimited\" to print the complete structure.")
3238 boolean_option_def
{
3240 [] (value_print_options
*opt
) { return &opt
->stop_print_at_null
; },
3241 show_stop_print_at_null
, /* show_cmd_cb */
3242 N_("Set printing of char arrays to stop at first null char."),
3243 N_("Show printing of char arrays to stop at first null char."),
3244 NULL
, /* help_doc */
3247 boolean_option_def
{
3249 [] (value_print_options
*opt
) { return &opt
->objectprint
; },
3250 show_objectprint
, /* show_cmd_cb */
3251 _("Set printing of C++ virtual function tables."),
3252 _("Show printing of C++ virtual function tables."),
3253 NULL
, /* help_doc */
3256 boolean_option_def
{
3258 [] (value_print_options
*opt
) { return &opt
->prettyformat_structs
; },
3259 show_prettyformat_structs
, /* show_cmd_cb */
3260 N_("Set pretty formatting of structures."),
3261 N_("Show pretty formatting of structures."),
3262 NULL
, /* help_doc */
3265 boolean_option_def
{
3267 [] (value_print_options
*opt
) { return &opt
->raw
; },
3268 NULL
, /* show_cmd_cb */
3269 N_("Set whether to print values in raw form."),
3270 N_("Show whether to print values in raw form."),
3271 N_("If set, values are printed in raw form, bypassing any\n\
3272 pretty-printers for that value.")
3275 uinteger_option_def
{
3277 [] (value_print_options
*opt
) { return &opt
->repeat_count_threshold
; },
3278 show_repeat_count_threshold
, /* show_cmd_cb */
3279 N_("Set threshold for repeated print elements."),
3280 N_("Show threshold for repeated print elements."),
3281 N_("\"unlimited\" causes all elements to be individually printed."),
3284 boolean_option_def
{
3286 [] (value_print_options
*opt
) { return &opt
->static_field_print
; },
3287 show_static_field_print
, /* show_cmd_cb */
3288 N_("Set printing of C++ static members."),
3289 N_("Show printing of C++ static members."),
3290 NULL
, /* help_doc */
3293 boolean_option_def
{
3295 [] (value_print_options
*opt
) { return &opt
->symbol_print
; },
3296 show_symbol_print
, /* show_cmd_cb */
3297 N_("Set printing of symbol names when printing pointers."),
3298 N_("Show printing of symbol names when printing pointers."),
3299 NULL
, /* help_doc */
3302 boolean_option_def
{
3304 [] (value_print_options
*opt
) { return &opt
->unionprint
; },
3305 show_unionprint
, /* show_cmd_cb */
3306 N_("Set printing of unions interior to structures."),
3307 N_("Show printing of unions interior to structures."),
3308 NULL
, /* help_doc */
3311 boolean_option_def
{
3313 [] (value_print_options
*opt
) { return &opt
->vtblprint
; },
3314 show_vtblprint
, /* show_cmd_cb */
3315 N_("Set printing of C++ virtual function tables."),
3316 N_("Show printing of C++ virtual function tables."),
3317 NULL
, /* help_doc */
3321 /* See valprint.h. */
3323 gdb::option::option_def_group
3324 make_value_print_options_def_group (value_print_options
*opts
)
3326 return {{value_print_option_defs
}, opts
};
3329 void _initialize_valprint ();
3331 _initialize_valprint ()
3333 cmd_list_element
*cmd
;
3335 add_prefix_cmd ("print", no_class
, set_print
,
3336 _("Generic command for setting how things print."),
3337 &setprintlist
, "set print ", 0, &setlist
);
3338 add_alias_cmd ("p", "print", no_class
, 1, &setlist
);
3339 /* Prefer set print to set prompt. */
3340 add_alias_cmd ("pr", "print", no_class
, 1, &setlist
);
3342 add_prefix_cmd ("print", no_class
, show_print
,
3343 _("Generic command for showing print settings."),
3344 &showprintlist
, "show print ", 0, &showlist
);
3345 add_alias_cmd ("p", "print", no_class
, 1, &showlist
);
3346 add_alias_cmd ("pr", "print", no_class
, 1, &showlist
);
3348 cmd
= add_prefix_cmd ("raw", no_class
, set_print_raw
,
3350 Generic command for setting what things to print in \"raw\" mode."),
3351 &setprintrawlist
, "set print raw ", 0,
3353 deprecate_cmd (cmd
, nullptr);
3355 cmd
= add_prefix_cmd ("raw", no_class
, show_print_raw
,
3356 _("Generic command for showing \"print raw\" settings."),
3357 &showprintrawlist
, "show print raw ", 0,
3359 deprecate_cmd (cmd
, nullptr);
3361 gdb::option::add_setshow_cmds_for_options
3362 (class_support
, &user_print_options
, value_print_option_defs
,
3363 &setprintlist
, &showprintlist
);
3365 add_setshow_zuinteger_cmd ("input-radix", class_support
, &input_radix_1
,
3367 Set default input radix for entering numbers."), _("\
3368 Show default input radix for entering numbers."), NULL
,
3371 &setlist
, &showlist
);
3373 add_setshow_zuinteger_cmd ("output-radix", class_support
, &output_radix_1
,
3375 Set default output radix for printing of values."), _("\
3376 Show default output radix for printing of values."), NULL
,
3379 &setlist
, &showlist
);
3381 /* The "set radix" and "show radix" commands are special in that
3382 they are like normal set and show commands but allow two normally
3383 independent variables to be either set or shown with a single
3384 command. So the usual deprecated_add_set_cmd() and [deleted]
3385 add_show_from_set() commands aren't really appropriate. */
3386 /* FIXME: i18n: With the new add_setshow_integer command, that is no
3387 longer true - show can display anything. */
3388 add_cmd ("radix", class_support
, set_radix
, _("\
3389 Set default input and output number radices.\n\
3390 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
3391 Without an argument, sets both radices back to the default value of 10."),
3393 add_cmd ("radix", class_support
, show_radix
, _("\
3394 Show the default input and output number radices.\n\
3395 Use 'show input-radix' or 'show output-radix' to independently show each."),