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 struct value
*original_value
,
93 struct ui_file
*stream
);
95 #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */
96 #define PRINT_MAX_DEPTH_DEFAULT 20 /* Start print_max_depth off at this value. */
98 struct value_print_options user_print_options
=
100 Val_prettyformat_default
, /* prettyformat */
101 0, /* prettyformat_arrays */
102 0, /* prettyformat_structs */
105 1, /* addressprint */
107 PRINT_MAX_DEFAULT
, /* print_max */
108 10, /* repeat_count_threshold */
109 0, /* output_format */
111 0, /* stop_print_at_null */
112 0, /* print_array_indexes */
114 1, /* static_field_print */
115 1, /* pascal_static_field_print */
118 1, /* symbol_print */
119 PRINT_MAX_DEPTH_DEFAULT
, /* max_depth */
123 /* Initialize *OPTS to be a copy of the user print options. */
125 get_user_print_options (struct value_print_options
*opts
)
127 *opts
= user_print_options
;
130 /* Initialize *OPTS to be a copy of the user print options, but with
131 pretty-formatting disabled. */
133 get_no_prettyformat_print_options (struct value_print_options
*opts
)
135 *opts
= user_print_options
;
136 opts
->prettyformat
= Val_no_prettyformat
;
139 /* Initialize *OPTS to be a copy of the user print options, but using
140 FORMAT as the formatting option. */
142 get_formatted_print_options (struct value_print_options
*opts
,
145 *opts
= user_print_options
;
146 opts
->format
= format
;
150 show_print_max (struct ui_file
*file
, int from_tty
,
151 struct cmd_list_element
*c
, const char *value
)
153 fprintf_filtered (file
,
154 _("Limit on string chars or array "
155 "elements to print is %s.\n"),
160 /* Default input and output radixes, and output format letter. */
162 unsigned input_radix
= 10;
164 show_input_radix (struct ui_file
*file
, int from_tty
,
165 struct cmd_list_element
*c
, const char *value
)
167 fprintf_filtered (file
,
168 _("Default input radix for entering numbers is %s.\n"),
172 unsigned output_radix
= 10;
174 show_output_radix (struct ui_file
*file
, int from_tty
,
175 struct cmd_list_element
*c
, const char *value
)
177 fprintf_filtered (file
,
178 _("Default output radix for printing of values is %s.\n"),
182 /* By default we print arrays without printing the index of each element in
183 the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */
186 show_print_array_indexes (struct ui_file
*file
, int from_tty
,
187 struct cmd_list_element
*c
, const char *value
)
189 fprintf_filtered (file
, _("Printing of array indexes is %s.\n"), value
);
192 /* Print repeat counts if there are more than this many repetitions of an
193 element in an array. Referenced by the low level language dependent
197 show_repeat_count_threshold (struct ui_file
*file
, int from_tty
,
198 struct cmd_list_element
*c
, const char *value
)
200 fprintf_filtered (file
, _("Threshold for repeated print elements is %s.\n"),
204 /* If nonzero, stops printing of char arrays at first null. */
207 show_stop_print_at_null (struct ui_file
*file
, int from_tty
,
208 struct cmd_list_element
*c
, const char *value
)
210 fprintf_filtered (file
,
211 _("Printing of char arrays to stop "
212 "at first null char is %s.\n"),
216 /* Controls pretty printing of structures. */
219 show_prettyformat_structs (struct ui_file
*file
, int from_tty
,
220 struct cmd_list_element
*c
, const char *value
)
222 fprintf_filtered (file
, _("Pretty formatting of structures is %s.\n"), value
);
225 /* Controls pretty printing of arrays. */
228 show_prettyformat_arrays (struct ui_file
*file
, int from_tty
,
229 struct cmd_list_element
*c
, const char *value
)
231 fprintf_filtered (file
, _("Pretty formatting of arrays is %s.\n"), value
);
234 /* If nonzero, causes unions inside structures or other unions to be
238 show_unionprint (struct ui_file
*file
, int from_tty
,
239 struct cmd_list_element
*c
, const char *value
)
241 fprintf_filtered (file
,
242 _("Printing of unions interior to structures is %s.\n"),
246 /* If nonzero, causes machine addresses to be printed in certain contexts. */
249 show_addressprint (struct ui_file
*file
, int from_tty
,
250 struct cmd_list_element
*c
, const char *value
)
252 fprintf_filtered (file
, _("Printing of addresses is %s.\n"), value
);
256 show_symbol_print (struct ui_file
*file
, int from_tty
,
257 struct cmd_list_element
*c
, const char *value
)
259 fprintf_filtered (file
,
260 _("Printing of symbols when printing pointers is %s.\n"),
266 /* A helper function for val_print. When printing in "summary" mode,
267 we want to print scalar arguments, but not aggregate arguments.
268 This function distinguishes between the two. */
271 val_print_scalar_type_p (struct type
*type
)
273 type
= check_typedef (type
);
274 while (TYPE_IS_REFERENCE (type
))
276 type
= TYPE_TARGET_TYPE (type
);
277 type
= check_typedef (type
);
279 switch (TYPE_CODE (type
))
281 case TYPE_CODE_ARRAY
:
282 case TYPE_CODE_STRUCT
:
283 case TYPE_CODE_UNION
:
285 case TYPE_CODE_STRING
:
292 /* A helper function for val_print. When printing with limited depth we
293 want to print string and scalar arguments, but not aggregate arguments.
294 This function distinguishes between the two. */
297 val_print_scalar_or_string_type_p (struct type
*type
,
298 const struct language_defn
*language
)
300 return (val_print_scalar_type_p (type
)
301 || language
->la_is_string_type_p (type
));
304 /* See its definition in value.h. */
307 valprint_check_validity (struct ui_file
*stream
,
309 LONGEST embedded_offset
,
310 const struct value
*val
)
312 type
= check_typedef (type
);
314 if (type_not_associated (type
))
316 val_print_not_associated (stream
);
320 if (type_not_allocated (type
))
322 val_print_not_allocated (stream
);
326 if (TYPE_CODE (type
) != TYPE_CODE_UNION
327 && TYPE_CODE (type
) != TYPE_CODE_STRUCT
328 && TYPE_CODE (type
) != TYPE_CODE_ARRAY
)
330 if (value_bits_any_optimized_out (val
,
331 TARGET_CHAR_BIT
* embedded_offset
,
332 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
334 val_print_optimized_out (val
, stream
);
338 if (value_bits_synthetic_pointer (val
, TARGET_CHAR_BIT
* embedded_offset
,
339 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
341 const int is_ref
= TYPE_CODE (type
) == TYPE_CODE_REF
;
342 int ref_is_addressable
= 0;
346 const struct value
*deref_val
= coerce_ref_if_computed (val
);
348 if (deref_val
!= NULL
)
349 ref_is_addressable
= value_lval_const (deref_val
) == lval_memory
;
352 if (!is_ref
|| !ref_is_addressable
)
353 fputs_styled (_("<synthetic pointer>"), metadata_style
.style (),
356 /* C++ references should be valid even if they're synthetic. */
360 if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
362 val_print_unavailable (stream
);
371 val_print_optimized_out (const struct value
*val
, struct ui_file
*stream
)
373 if (val
!= NULL
&& value_lval_const (val
) == lval_register
)
374 val_print_not_saved (stream
);
376 fprintf_styled (stream
, metadata_style
.style (), _("<optimized out>"));
380 val_print_not_saved (struct ui_file
*stream
)
382 fprintf_styled (stream
, metadata_style
.style (), _("<not saved>"));
386 val_print_unavailable (struct ui_file
*stream
)
388 fprintf_styled (stream
, metadata_style
.style (), _("<unavailable>"));
392 val_print_invalid_address (struct ui_file
*stream
)
394 fprintf_styled (stream
, metadata_style
.style (), _("<invalid address>"));
397 /* Print a pointer based on the type of its target.
399 Arguments to this functions are roughly the same as those in
400 generic_val_print. A difference is that ADDRESS is the address to print,
401 with embedded_offset already added. ELTTYPE represents
402 the pointed type after check_typedef. */
405 print_unpacked_pointer (struct type
*type
, struct type
*elttype
,
406 CORE_ADDR address
, struct ui_file
*stream
,
407 const struct value_print_options
*options
)
409 struct gdbarch
*gdbarch
= get_type_arch (type
);
411 if (TYPE_CODE (elttype
) == TYPE_CODE_FUNC
)
413 /* Try to print what function it points to. */
414 print_function_pointer_address (options
, gdbarch
, address
, stream
);
418 if (options
->symbol_print
)
419 print_address_demangle (options
, gdbarch
, address
, stream
, demangle
);
420 else if (options
->addressprint
)
421 fputs_filtered (paddress (gdbarch
, address
), stream
);
424 /* generic_val_print helper for TYPE_CODE_ARRAY. */
427 generic_val_print_array (struct type
*type
,
428 int embedded_offset
, CORE_ADDR address
,
429 struct ui_file
*stream
, int recurse
,
430 struct value
*original_value
,
431 const struct value_print_options
*options
,
433 generic_val_print_decorations
*decorations
)
435 struct type
*unresolved_elttype
= TYPE_TARGET_TYPE (type
);
436 struct type
*elttype
= check_typedef (unresolved_elttype
);
438 if (TYPE_LENGTH (type
) > 0 && TYPE_LENGTH (unresolved_elttype
) > 0)
440 LONGEST low_bound
, high_bound
;
442 if (!get_array_bounds (type
, &low_bound
, &high_bound
))
443 error (_("Could not determine the array high bound"));
445 if (options
->prettyformat_arrays
)
447 print_spaces_filtered (2 + 2 * recurse
, stream
);
450 fputs_filtered (decorations
->array_start
, stream
);
451 val_print_array_elements (type
, embedded_offset
,
453 recurse
, original_value
, options
, 0);
454 fputs_filtered (decorations
->array_end
, stream
);
458 /* Array of unspecified length: treat like pointer to first elt. */
459 print_unpacked_pointer (type
, elttype
, address
+ embedded_offset
, stream
,
465 /* generic_val_print helper for TYPE_CODE_PTR. */
468 generic_val_print_ptr (struct type
*type
,
469 int embedded_offset
, struct ui_file
*stream
,
470 struct value
*original_value
,
471 const struct value_print_options
*options
)
473 struct gdbarch
*gdbarch
= get_type_arch (type
);
474 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
476 if (options
->format
&& options
->format
!= 's')
478 val_print_scalar_formatted (type
, embedded_offset
,
479 original_value
, options
, 0, stream
);
483 struct type
*unresolved_elttype
= TYPE_TARGET_TYPE(type
);
484 struct type
*elttype
= check_typedef (unresolved_elttype
);
485 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
486 CORE_ADDR addr
= unpack_pointer (type
,
487 valaddr
+ embedded_offset
* unit_size
);
489 print_unpacked_pointer (type
, elttype
, addr
, stream
, options
);
493 /* generic_value_print helper for TYPE_CODE_PTR. */
496 generic_value_print_ptr (struct value
*val
, struct ui_file
*stream
,
497 const struct value_print_options
*options
)
500 if (options
->format
&& options
->format
!= 's')
501 value_print_scalar_formatted (val
, options
, 0, stream
);
504 struct type
*type
= check_typedef (value_type (val
));
505 struct type
*elttype
= check_typedef (TYPE_TARGET_TYPE (type
));
506 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
507 CORE_ADDR addr
= unpack_pointer (type
, valaddr
);
509 print_unpacked_pointer (type
, elttype
, addr
, stream
, options
);
514 /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */
517 generic_val_print_memberptr (struct type
*type
,
518 int embedded_offset
, struct ui_file
*stream
,
519 struct value
*original_value
,
520 const struct value_print_options
*options
)
522 val_print_scalar_formatted (type
, embedded_offset
,
523 original_value
, options
, 0, stream
);
526 /* Print '@' followed by the address contained in ADDRESS_BUFFER. */
529 print_ref_address (struct type
*type
, const gdb_byte
*address_buffer
,
530 int embedded_offset
, struct ui_file
*stream
)
532 struct gdbarch
*gdbarch
= get_type_arch (type
);
534 if (address_buffer
!= NULL
)
537 = extract_typed_address (address_buffer
+ embedded_offset
, type
);
539 fprintf_filtered (stream
, "@");
540 fputs_filtered (paddress (gdbarch
, address
), stream
);
542 /* Else: we have a non-addressable value, such as a DW_AT_const_value. */
545 /* If VAL is addressable, return the value contents buffer of a value that
546 represents a pointer to VAL. Otherwise return NULL. */
548 static const gdb_byte
*
549 get_value_addr_contents (struct value
*deref_val
)
551 gdb_assert (deref_val
!= NULL
);
553 if (value_lval_const (deref_val
) == lval_memory
)
554 return value_contents_for_printing_const (value_addr (deref_val
));
557 /* We have a non-addressable value, such as a DW_AT_const_value. */
562 /* generic_val_print helper for TYPE_CODE_{RVALUE_,}REF. */
565 generic_val_print_ref (struct type
*type
,
566 int embedded_offset
, struct ui_file
*stream
, int recurse
,
567 struct value
*original_value
,
568 const struct value_print_options
*options
)
570 struct type
*elttype
= check_typedef (TYPE_TARGET_TYPE (type
));
571 struct value
*deref_val
= NULL
;
572 const int value_is_synthetic
573 = value_bits_synthetic_pointer (original_value
,
574 TARGET_CHAR_BIT
* embedded_offset
,
575 TARGET_CHAR_BIT
* TYPE_LENGTH (type
));
576 const int must_coerce_ref
= ((options
->addressprint
&& value_is_synthetic
)
577 || options
->deref_ref
);
578 const int type_is_defined
= TYPE_CODE (elttype
) != TYPE_CODE_UNDEF
;
579 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
581 if (must_coerce_ref
&& type_is_defined
)
583 deref_val
= coerce_ref_if_computed (original_value
);
585 if (deref_val
!= NULL
)
587 /* More complicated computed references are not supported. */
588 gdb_assert (embedded_offset
== 0);
591 deref_val
= value_at (TYPE_TARGET_TYPE (type
),
592 unpack_pointer (type
, valaddr
+ embedded_offset
));
594 /* Else, original_value isn't a synthetic reference or we don't have to print
595 the reference's contents.
597 Notice that for references to TYPE_CODE_STRUCT, 'set print object on' will
598 cause original_value to be a not_lval instead of an lval_computed,
599 which will make value_bits_synthetic_pointer return false.
600 This happens because if options->objectprint is true, c_value_print will
601 overwrite original_value's contents with the result of coercing
602 the reference through value_addr, and then set its type back to
603 TYPE_CODE_REF. In that case we don't have to coerce the reference again;
604 we can simply treat it as non-synthetic and move on. */
606 if (options
->addressprint
)
608 const gdb_byte
*address
= (value_is_synthetic
&& type_is_defined
609 ? get_value_addr_contents (deref_val
)
612 print_ref_address (type
, address
, embedded_offset
, stream
);
614 if (options
->deref_ref
)
615 fputs_filtered (": ", stream
);
618 if (options
->deref_ref
)
621 common_val_print (deref_val
, stream
, recurse
, options
,
624 fputs_filtered ("???", stream
);
628 /* Helper function for generic_val_print_enum.
629 This is also used to print enums in TYPE_CODE_FLAGS values. */
632 generic_val_print_enum_1 (struct type
*type
, LONGEST val
,
633 struct ui_file
*stream
)
638 len
= TYPE_NFIELDS (type
);
639 for (i
= 0; i
< len
; i
++)
642 if (val
== TYPE_FIELD_ENUMVAL (type
, i
))
649 fputs_styled (TYPE_FIELD_NAME (type
, i
), variable_name_style
.style (),
652 else if (TYPE_FLAG_ENUM (type
))
656 /* We have a "flag" enum, so we try to decompose it into pieces as
657 appropriate. The enum may have multiple enumerators representing
658 the same bit, in which case we choose to only print the first one
660 for (i
= 0; i
< len
; ++i
)
664 ULONGEST enumval
= TYPE_FIELD_ENUMVAL (type
, i
);
665 int nbits
= count_one_bits_ll (enumval
);
667 gdb_assert (nbits
== 0 || nbits
== 1);
669 if ((val
& enumval
) != 0)
673 fputs_filtered ("(", stream
);
677 fputs_filtered (" | ", stream
);
679 val
&= ~TYPE_FIELD_ENUMVAL (type
, i
);
680 fputs_styled (TYPE_FIELD_NAME (type
, i
),
681 variable_name_style
.style (), stream
);
687 /* There are leftover bits, print them. */
689 fputs_filtered ("(", stream
);
691 fputs_filtered (" | ", stream
);
693 fputs_filtered ("unknown: 0x", stream
);
694 print_longest (stream
, 'x', 0, val
);
695 fputs_filtered (")", stream
);
699 /* Nothing has been printed and the value is 0, the enum value must
701 fputs_filtered ("0", stream
);
705 /* Something has been printed, close the parenthesis. */
706 fputs_filtered (")", stream
);
710 print_longest (stream
, 'd', 0, val
);
713 /* generic_val_print helper for TYPE_CODE_ENUM. */
716 generic_val_print_enum (struct type
*type
,
717 int embedded_offset
, struct ui_file
*stream
,
718 struct value
*original_value
,
719 const struct value_print_options
*options
)
722 struct gdbarch
*gdbarch
= get_type_arch (type
);
723 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
725 gdb_assert (!options
->format
);
727 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
729 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
731 generic_val_print_enum_1 (type
, val
, stream
);
734 /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
737 generic_val_print_func (struct type
*type
,
738 int embedded_offset
, CORE_ADDR address
,
739 struct ui_file
*stream
,
740 struct value
*original_value
,
741 const struct value_print_options
*options
)
743 struct gdbarch
*gdbarch
= get_type_arch (type
);
745 gdb_assert (!options
->format
);
747 /* FIXME, we should consider, at least for ANSI C language,
748 eliminating the distinction made between FUNCs and POINTERs to
750 fprintf_filtered (stream
, "{");
751 type_print (type
, "", stream
, -1);
752 fprintf_filtered (stream
, "} ");
753 /* Try to print what function it points to, and its address. */
754 print_address_demangle (options
, gdbarch
, address
, stream
, demangle
);
757 /* generic_val_print helper for TYPE_CODE_BOOL. */
760 generic_val_print_bool (struct type
*type
,
761 int embedded_offset
, struct ui_file
*stream
,
762 struct value
*original_value
,
763 const struct value_print_options
*options
,
764 const struct generic_val_print_decorations
*decorations
)
767 struct gdbarch
*gdbarch
= get_type_arch (type
);
768 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
770 if (options
->format
|| options
->output_format
)
772 struct value_print_options opts
= *options
;
773 opts
.format
= (options
->format
? options
->format
774 : options
->output_format
);
775 val_print_scalar_formatted (type
, embedded_offset
,
776 original_value
, &opts
, 0, stream
);
780 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
782 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
784 fputs_filtered (decorations
->false_name
, stream
);
786 fputs_filtered (decorations
->true_name
, stream
);
788 print_longest (stream
, 'd', 0, val
);
792 /* generic_value_print helper for TYPE_CODE_BOOL. */
795 generic_value_print_bool
796 (struct value
*value
, struct ui_file
*stream
,
797 const struct value_print_options
*options
,
798 const struct generic_val_print_decorations
*decorations
)
800 if (options
->format
|| options
->output_format
)
802 struct value_print_options opts
= *options
;
803 opts
.format
= (options
->format
? options
->format
804 : options
->output_format
);
805 value_print_scalar_formatted (value
, &opts
, 0, stream
);
809 const gdb_byte
*valaddr
= value_contents_for_printing (value
);
810 struct type
*type
= check_typedef (value_type (value
));
811 LONGEST val
= unpack_long (type
, valaddr
);
813 fputs_filtered (decorations
->false_name
, stream
);
815 fputs_filtered (decorations
->true_name
, stream
);
817 print_longest (stream
, 'd', 0, val
);
821 /* generic_val_print helper for TYPE_CODE_INT. */
824 generic_val_print_int (struct type
*type
,
825 int embedded_offset
, struct ui_file
*stream
,
826 struct value
*original_value
,
827 const struct value_print_options
*options
)
829 struct value_print_options opts
= *options
;
831 opts
.format
= (options
->format
? options
->format
832 : options
->output_format
);
833 val_print_scalar_formatted (type
, embedded_offset
,
834 original_value
, &opts
, 0, stream
);
837 /* generic_val_print helper for TYPE_CODE_CHAR. */
840 generic_val_print_char (struct type
*type
, struct type
*unresolved_type
,
842 struct ui_file
*stream
,
843 struct value
*original_value
,
844 const struct value_print_options
*options
)
847 struct gdbarch
*gdbarch
= get_type_arch (type
);
848 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
850 if (options
->format
|| options
->output_format
)
852 struct value_print_options opts
= *options
;
854 opts
.format
= (options
->format
? options
->format
855 : options
->output_format
);
856 val_print_scalar_formatted (type
, embedded_offset
,
857 original_value
, &opts
, 0, stream
);
861 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
863 val
= unpack_long (type
, valaddr
+ embedded_offset
* unit_size
);
864 if (TYPE_UNSIGNED (type
))
865 fprintf_filtered (stream
, "%u", (unsigned int) val
);
867 fprintf_filtered (stream
, "%d", (int) val
);
868 fputs_filtered (" ", stream
);
869 LA_PRINT_CHAR (val
, unresolved_type
, stream
);
873 /* generic_val_print helper for TYPE_CODE_FLT and TYPE_CODE_DECFLOAT. */
876 generic_val_print_float (struct type
*type
,
877 int embedded_offset
, struct ui_file
*stream
,
878 struct value
*original_value
,
879 const struct value_print_options
*options
)
881 struct gdbarch
*gdbarch
= get_type_arch (type
);
882 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
886 val_print_scalar_formatted (type
, embedded_offset
,
887 original_value
, options
, 0, stream
);
891 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
893 print_floating (valaddr
+ embedded_offset
* unit_size
, type
, stream
);
897 /* generic_val_print helper for TYPE_CODE_COMPLEX. */
900 generic_val_print_complex (struct type
*type
,
901 int embedded_offset
, struct ui_file
*stream
,
902 struct value
*original_value
,
903 const struct value_print_options
*options
,
904 const struct generic_val_print_decorations
907 struct gdbarch
*gdbarch
= get_type_arch (type
);
908 int unit_size
= gdbarch_addressable_memory_unit_size (gdbarch
);
909 const gdb_byte
*valaddr
= value_contents_for_printing (original_value
);
911 fprintf_filtered (stream
, "%s", decorations
->complex_prefix
);
913 val_print_scalar_formatted (TYPE_TARGET_TYPE (type
),
914 embedded_offset
, original_value
, options
, 0,
917 print_floating (valaddr
+ embedded_offset
* unit_size
,
918 TYPE_TARGET_TYPE (type
), stream
);
919 fprintf_filtered (stream
, "%s", decorations
->complex_infix
);
921 val_print_scalar_formatted (TYPE_TARGET_TYPE (type
),
923 + type_length_units (TYPE_TARGET_TYPE (type
)),
924 original_value
, options
, 0, stream
);
926 print_floating (valaddr
+ embedded_offset
* unit_size
927 + TYPE_LENGTH (TYPE_TARGET_TYPE (type
)),
928 TYPE_TARGET_TYPE (type
), stream
);
929 fprintf_filtered (stream
, "%s", decorations
->complex_suffix
);
932 /* A generic val_print that is suitable for use by language
933 implementations of the la_val_print method. This function can
934 handle most type codes, though not all, notably exception
935 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
938 Most arguments are as to val_print.
940 The additional DECORATIONS argument can be used to customize the
941 output in some small, language-specific ways. */
944 generic_val_print (struct type
*type
,
945 int embedded_offset
, CORE_ADDR address
,
946 struct ui_file
*stream
, int recurse
,
947 struct value
*original_value
,
948 const struct value_print_options
*options
,
949 const struct generic_val_print_decorations
*decorations
)
951 struct type
*unresolved_type
= type
;
953 type
= check_typedef (type
);
954 switch (TYPE_CODE (type
))
956 case TYPE_CODE_ARRAY
:
957 generic_val_print_array (type
, embedded_offset
, address
, stream
,
958 recurse
, original_value
, options
, decorations
);
961 case TYPE_CODE_MEMBERPTR
:
962 generic_val_print_memberptr (type
, embedded_offset
, stream
,
963 original_value
, options
);
967 generic_val_print_ptr (type
, embedded_offset
, stream
,
968 original_value
, options
);
972 case TYPE_CODE_RVALUE_REF
:
973 generic_val_print_ref (type
, embedded_offset
, stream
, recurse
,
974 original_value
, options
);
979 val_print_scalar_formatted (type
, embedded_offset
,
980 original_value
, options
, 0, stream
);
982 generic_val_print_enum (type
, embedded_offset
, stream
,
983 original_value
, options
);
986 case TYPE_CODE_FLAGS
:
988 val_print_scalar_formatted (type
, embedded_offset
,
989 original_value
, options
, 0, stream
);
991 val_print_type_code_flags (type
, original_value
, embedded_offset
,
996 case TYPE_CODE_METHOD
:
998 val_print_scalar_formatted (type
, embedded_offset
,
999 original_value
, options
, 0, stream
);
1001 generic_val_print_func (type
, embedded_offset
, address
, stream
,
1002 original_value
, options
);
1005 case TYPE_CODE_BOOL
:
1006 generic_val_print_bool (type
, embedded_offset
, stream
,
1007 original_value
, options
, decorations
);
1010 case TYPE_CODE_RANGE
:
1011 /* FIXME: create_static_range_type does not set the unsigned bit in a
1012 range type (I think it probably should copy it from the
1013 target type), so we won't print values which are too large to
1014 fit in a signed integer correctly. */
1015 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
1016 print with the target type, though, because the size of our
1017 type and the target type might differ). */
1022 generic_val_print_int (type
, embedded_offset
, stream
,
1023 original_value
, options
);
1026 case TYPE_CODE_CHAR
:
1027 generic_val_print_char (type
, unresolved_type
, embedded_offset
,
1028 stream
, original_value
, options
);
1032 case TYPE_CODE_DECFLOAT
:
1033 generic_val_print_float (type
, embedded_offset
, stream
,
1034 original_value
, options
);
1037 case TYPE_CODE_VOID
:
1038 fputs_filtered (decorations
->void_name
, stream
);
1041 case TYPE_CODE_ERROR
:
1042 fprintf_filtered (stream
, "%s", TYPE_ERROR_NAME (type
));
1045 case TYPE_CODE_UNDEF
:
1046 /* This happens (without TYPE_STUB set) on systems which don't use
1047 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
1048 and no complete type for struct foo in that file. */
1049 fprintf_styled (stream
, metadata_style
.style (), _("<incomplete type>"));
1052 case TYPE_CODE_COMPLEX
:
1053 generic_val_print_complex (type
, embedded_offset
, stream
,
1054 original_value
, options
, decorations
);
1057 case TYPE_CODE_UNION
:
1058 case TYPE_CODE_STRUCT
:
1059 case TYPE_CODE_METHODPTR
:
1061 error (_("Unhandled type code %d in symbol table."),
1066 /* See valprint.h. */
1069 generic_value_print (struct value
*val
, struct ui_file
*stream
, int recurse
,
1070 const struct value_print_options
*options
,
1071 const struct generic_val_print_decorations
*decorations
)
1073 struct type
*type
= value_type (val
);
1074 struct type
*unresolved_type
= type
;
1076 type
= check_typedef (type
);
1077 switch (TYPE_CODE (type
))
1079 case TYPE_CODE_ARRAY
:
1080 generic_val_print_array (type
, 0, value_address (val
), stream
,
1081 recurse
, val
, options
, decorations
);
1084 case TYPE_CODE_MEMBERPTR
:
1085 value_print_scalar_formatted (val
, options
, 0, stream
);
1089 generic_value_print_ptr (val
, stream
, options
);
1093 case TYPE_CODE_RVALUE_REF
:
1094 generic_val_print_ref (type
, 0, stream
, recurse
,
1098 case TYPE_CODE_ENUM
:
1099 if (options
->format
)
1100 value_print_scalar_formatted (val
, options
, 0, stream
);
1102 generic_val_print_enum (type
, 0, stream
, val
, options
);
1105 case TYPE_CODE_FLAGS
:
1106 if (options
->format
)
1107 value_print_scalar_formatted (val
, options
, 0, stream
);
1109 val_print_type_code_flags (type
, val
, 0, stream
);
1112 case TYPE_CODE_FUNC
:
1113 case TYPE_CODE_METHOD
:
1114 if (options
->format
)
1115 value_print_scalar_formatted (val
, options
, 0, stream
);
1117 generic_val_print_func (type
, 0, value_address (val
), stream
,
1121 case TYPE_CODE_BOOL
:
1122 generic_value_print_bool (val
, stream
, options
, decorations
);
1125 case TYPE_CODE_RANGE
:
1126 /* FIXME: create_static_range_type does not set the unsigned bit in a
1127 range type (I think it probably should copy it from the
1128 target type), so we won't print values which are too large to
1129 fit in a signed integer correctly. */
1130 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
1131 print with the target type, though, because the size of our
1132 type and the target type might differ). */
1137 generic_val_print_int (type
, 0, stream
,
1141 case TYPE_CODE_CHAR
:
1142 generic_val_print_char (type
, unresolved_type
, 0,
1143 stream
, val
, options
);
1147 case TYPE_CODE_DECFLOAT
:
1148 generic_val_print_float (type
, 0, stream
,
1152 case TYPE_CODE_VOID
:
1153 fputs_filtered (decorations
->void_name
, stream
);
1156 case TYPE_CODE_ERROR
:
1157 fprintf_filtered (stream
, "%s", TYPE_ERROR_NAME (type
));
1160 case TYPE_CODE_UNDEF
:
1161 /* This happens (without TYPE_STUB set) on systems which don't use
1162 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
1163 and no complete type for struct foo in that file. */
1164 fprintf_styled (stream
, metadata_style
.style (), _("<incomplete type>"));
1167 case TYPE_CODE_COMPLEX
:
1168 generic_val_print_complex (type
, 0, stream
,
1169 val
, options
, decorations
);
1172 case TYPE_CODE_UNION
:
1173 case TYPE_CODE_STRUCT
:
1174 case TYPE_CODE_METHODPTR
:
1176 error (_("Unhandled type code %d in symbol table."),
1181 /* Helper function for val_print and common_val_print that does the
1182 work. Arguments are as to val_print, but FULL_VALUE, if given, is
1183 the value to be printed. */
1186 do_val_print (struct value
*full_value
,
1187 struct type
*type
, LONGEST embedded_offset
,
1188 CORE_ADDR address
, struct ui_file
*stream
, int recurse
,
1190 const struct value_print_options
*options
,
1191 const struct language_defn
*language
)
1194 struct value_print_options local_opts
= *options
;
1195 struct type
*real_type
= check_typedef (type
);
1197 if (local_opts
.prettyformat
== Val_prettyformat_default
)
1198 local_opts
.prettyformat
= (local_opts
.prettyformat_structs
1199 ? Val_prettyformat
: Val_no_prettyformat
);
1203 /* Ensure that the type is complete and not just a stub. If the type is
1204 only a stub and we can't find and substitute its complete type, then
1205 print appropriate string and return. */
1207 if (TYPE_STUB (real_type
))
1209 fprintf_styled (stream
, metadata_style
.style (), _("<incomplete type>"));
1213 if (!valprint_check_validity (stream
, real_type
, embedded_offset
, val
))
1218 ret
= apply_ext_lang_val_pretty_printer (type
, embedded_offset
,
1219 address
, stream
, recurse
,
1220 val
, options
, language
);
1225 /* Handle summary mode. If the value is a scalar, print it;
1226 otherwise, print an ellipsis. */
1227 if (options
->summary
&& !val_print_scalar_type_p (type
))
1229 fprintf_filtered (stream
, "...");
1233 /* If this value is too deep then don't print it. */
1234 if (!val_print_scalar_or_string_type_p (type
, language
)
1235 && val_print_check_max_depth (stream
, recurse
, options
, language
))
1240 if (full_value
!= nullptr && language
->la_value_print_inner
!= nullptr)
1241 language
->la_value_print_inner (full_value
, stream
, recurse
,
1244 language
->la_val_print (type
, embedded_offset
, address
,
1245 stream
, recurse
, val
,
1248 catch (const gdb_exception_error
&except
)
1250 fprintf_styled (stream
, metadata_style
.style (),
1251 _("<error reading variable>"));
1255 /* Print using the given LANGUAGE the data of type TYPE located at
1256 VAL's contents buffer + EMBEDDED_OFFSET (within GDB), which came
1257 from the inferior at address ADDRESS + EMBEDDED_OFFSET, onto
1258 stdio stream STREAM according to OPTIONS. VAL is the whole object
1259 that came from ADDRESS.
1261 The language printers will pass down an adjusted EMBEDDED_OFFSET to
1262 further helper subroutines as subfields of TYPE are printed. In
1263 such cases, VAL is passed down unadjusted, so
1264 that VAL can be queried for metadata about the contents data being
1265 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
1266 buffer. For example: "has this field been optimized out", or "I'm
1267 printing an object while inspecting a traceframe; has this
1268 particular piece of data been collected?".
1270 RECURSE indicates the amount of indentation to supply before
1271 continuation lines; this amount is roughly twice the value of
1275 val_print (struct type
*type
, LONGEST embedded_offset
,
1276 CORE_ADDR address
, struct ui_file
*stream
, int recurse
,
1278 const struct value_print_options
*options
,
1279 const struct language_defn
*language
)
1281 do_val_print (nullptr, type
, embedded_offset
, address
, stream
,
1282 recurse
, val
, options
, language
);
1285 /* See valprint.h. */
1288 val_print_check_max_depth (struct ui_file
*stream
, int recurse
,
1289 const struct value_print_options
*options
,
1290 const struct language_defn
*language
)
1292 if (options
->max_depth
> -1 && recurse
>= options
->max_depth
)
1294 gdb_assert (language
->la_struct_too_deep_ellipsis
!= NULL
);
1295 fputs_filtered (language
->la_struct_too_deep_ellipsis
, stream
);
1302 /* Check whether the value VAL is printable. Return 1 if it is;
1303 return 0 and print an appropriate error message to STREAM according to
1304 OPTIONS if it is not. */
1307 value_check_printable (struct value
*val
, struct ui_file
*stream
,
1308 const struct value_print_options
*options
)
1312 fprintf_styled (stream
, metadata_style
.style (),
1313 _("<address of value unknown>"));
1317 if (value_entirely_optimized_out (val
))
1319 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1320 fprintf_filtered (stream
, "...");
1322 val_print_optimized_out (val
, stream
);
1326 if (value_entirely_unavailable (val
))
1328 if (options
->summary
&& !val_print_scalar_type_p (value_type (val
)))
1329 fprintf_filtered (stream
, "...");
1331 val_print_unavailable (stream
);
1335 if (TYPE_CODE (value_type (val
)) == TYPE_CODE_INTERNAL_FUNCTION
)
1337 fprintf_styled (stream
, metadata_style
.style (),
1338 _("<internal function %s>"),
1339 value_internal_function_name (val
));
1343 if (type_not_associated (value_type (val
)))
1345 val_print_not_associated (stream
);
1349 if (type_not_allocated (value_type (val
)))
1351 val_print_not_allocated (stream
);
1358 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
1361 This is a preferable interface to val_print, above, because it uses
1362 GDB's value mechanism. */
1365 common_val_print (struct value
*val
, struct ui_file
*stream
, int recurse
,
1366 const struct value_print_options
*options
,
1367 const struct language_defn
*language
)
1369 if (!value_check_printable (val
, stream
, options
))
1372 if (language
->la_language
== language_ada
)
1373 /* The value might have a dynamic type, which would cause trouble
1374 below when trying to extract the value contents (since the value
1375 size is determined from the type size which is unknown). So
1376 get a fixed representation of our value. */
1377 val
= ada_to_fixed_value (val
);
1379 if (value_lazy (val
))
1380 value_fetch_lazy (val
);
1382 do_val_print (val
, value_type (val
),
1383 value_embedded_offset (val
), value_address (val
),
1385 val
, options
, language
);
1388 /* See valprint.h. */
1391 common_val_print_checked (struct value
*val
, struct ui_file
*stream
,
1393 const struct value_print_options
*options
,
1394 const struct language_defn
*language
)
1396 if (!value_check_printable (val
, stream
, options
))
1398 common_val_print (val
, stream
, recurse
, options
, language
);
1401 /* Print on stream STREAM the value VAL according to OPTIONS. The value
1402 is printed using the current_language syntax. */
1405 value_print (struct value
*val
, struct ui_file
*stream
,
1406 const struct value_print_options
*options
)
1408 scoped_value_mark free_values
;
1410 if (!value_check_printable (val
, stream
, options
))
1416 = apply_ext_lang_val_pretty_printer (value_type (val
),
1417 value_embedded_offset (val
),
1418 value_address (val
),
1420 val
, options
, current_language
);
1426 LA_VALUE_PRINT (val
, stream
, options
);
1430 val_print_type_code_flags (struct type
*type
, struct value
*original_value
,
1431 int embedded_offset
, struct ui_file
*stream
)
1433 const gdb_byte
*valaddr
= (value_contents_for_printing (original_value
)
1435 ULONGEST val
= unpack_long (type
, valaddr
);
1436 int field
, nfields
= TYPE_NFIELDS (type
);
1437 struct gdbarch
*gdbarch
= get_type_arch (type
);
1438 struct type
*bool_type
= builtin_type (gdbarch
)->builtin_bool
;
1440 fputs_filtered ("[", stream
);
1441 for (field
= 0; field
< nfields
; field
++)
1443 if (TYPE_FIELD_NAME (type
, field
)[0] != '\0')
1445 struct type
*field_type
= TYPE_FIELD_TYPE (type
, field
);
1447 if (field_type
== bool_type
1448 /* We require boolean types here to be one bit wide. This is a
1449 problematic place to notify the user of an internal error
1450 though. Instead just fall through and print the field as an
1452 && TYPE_FIELD_BITSIZE (type
, field
) == 1)
1454 if (val
& ((ULONGEST
)1 << TYPE_FIELD_BITPOS (type
, field
)))
1457 styled_string (variable_name_style
.style (),
1458 TYPE_FIELD_NAME (type
, field
)));
1462 unsigned field_len
= TYPE_FIELD_BITSIZE (type
, field
);
1464 = val
>> (TYPE_FIELD_BITPOS (type
, field
) - field_len
+ 1);
1466 if (field_len
< sizeof (ULONGEST
) * TARGET_CHAR_BIT
)
1467 field_val
&= ((ULONGEST
) 1 << field_len
) - 1;
1468 fprintf_filtered (stream
, " %ps=",
1469 styled_string (variable_name_style
.style (),
1470 TYPE_FIELD_NAME (type
, field
)));
1471 if (TYPE_CODE (field_type
) == TYPE_CODE_ENUM
)
1472 generic_val_print_enum_1 (field_type
, field_val
, stream
);
1474 print_longest (stream
, 'd', 0, field_val
);
1478 fputs_filtered (" ]", stream
);
1481 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1482 according to OPTIONS and SIZE on STREAM. Format i is not supported
1485 This is how the elements of an array or structure are printed
1489 val_print_scalar_formatted (struct type
*type
,
1490 LONGEST embedded_offset
,
1492 const struct value_print_options
*options
,
1494 struct ui_file
*stream
)
1496 struct gdbarch
*arch
= get_type_arch (type
);
1497 int unit_size
= gdbarch_addressable_memory_unit_size (arch
);
1499 gdb_assert (val
!= NULL
);
1501 /* If we get here with a string format, try again without it. Go
1502 all the way back to the language printers, which may call us
1504 if (options
->format
== 's')
1506 struct value_print_options opts
= *options
;
1509 val_print (type
, embedded_offset
, 0, stream
, 0, val
, &opts
,
1514 /* value_contents_for_printing fetches all VAL's contents. They are
1515 needed to check whether VAL is optimized-out or unavailable
1517 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
1519 /* A scalar object that does not have all bits available can't be
1520 printed, because all bits contribute to its representation. */
1521 if (value_bits_any_optimized_out (val
,
1522 TARGET_CHAR_BIT
* embedded_offset
,
1523 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
1524 val_print_optimized_out (val
, stream
);
1525 else if (!value_bytes_available (val
, embedded_offset
, TYPE_LENGTH (type
)))
1526 val_print_unavailable (stream
);
1528 print_scalar_formatted (valaddr
+ embedded_offset
* unit_size
, type
,
1529 options
, size
, stream
);
1532 /* See valprint.h. */
1535 value_print_scalar_formatted (struct value
*val
,
1536 const struct value_print_options
*options
,
1538 struct ui_file
*stream
)
1540 struct type
*type
= check_typedef (value_type (val
));
1542 gdb_assert (val
!= NULL
);
1544 /* If we get here with a string format, try again without it. Go
1545 all the way back to the language printers, which may call us
1547 if (options
->format
== 's')
1549 struct value_print_options opts
= *options
;
1552 common_val_print (val
, stream
, 0, &opts
, current_language
);
1556 /* value_contents_for_printing fetches all VAL's contents. They are
1557 needed to check whether VAL is optimized-out or unavailable
1559 const gdb_byte
*valaddr
= value_contents_for_printing (val
);
1561 /* A scalar object that does not have all bits available can't be
1562 printed, because all bits contribute to its representation. */
1563 if (value_bits_any_optimized_out (val
, 0,
1564 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
1565 val_print_optimized_out (val
, stream
);
1566 else if (!value_bytes_available (val
, 0, TYPE_LENGTH (type
)))
1567 val_print_unavailable (stream
);
1569 print_scalar_formatted (valaddr
, type
, options
, size
, stream
);
1572 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1573 The raison d'etre of this function is to consolidate printing of
1574 LONG_LONG's into this one function. The format chars b,h,w,g are
1575 from print_scalar_formatted(). Numbers are printed using C
1578 USE_C_FORMAT means to use C format in all cases. Without it,
1579 'o' and 'x' format do not include the standard C radix prefix
1582 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1583 and was intended to request formatting according to the current
1584 language and would be used for most integers that GDB prints. The
1585 exceptional cases were things like protocols where the format of
1586 the integer is a protocol thing, not a user-visible thing). The
1587 parameter remains to preserve the information of what things might
1588 be printed with language-specific format, should we ever resurrect
1592 print_longest (struct ui_file
*stream
, int format
, int use_c_format
,
1600 val
= int_string (val_long
, 10, 1, 0, 1); break;
1602 val
= int_string (val_long
, 10, 0, 0, 1); break;
1604 val
= int_string (val_long
, 16, 0, 0, use_c_format
); break;
1606 val
= int_string (val_long
, 16, 0, 2, 1); break;
1608 val
= int_string (val_long
, 16, 0, 4, 1); break;
1610 val
= int_string (val_long
, 16, 0, 8, 1); break;
1612 val
= int_string (val_long
, 16, 0, 16, 1); break;
1615 val
= int_string (val_long
, 8, 0, 0, use_c_format
); break;
1617 internal_error (__FILE__
, __LINE__
,
1618 _("failed internal consistency check"));
1620 fputs_filtered (val
, stream
);
1623 /* This used to be a macro, but I don't think it is called often enough
1624 to merit such treatment. */
1625 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1626 arguments to a function, number in a value history, register number, etc.)
1627 where the value must not be larger than can fit in an int. */
1630 longest_to_int (LONGEST arg
)
1632 /* Let the compiler do the work. */
1633 int rtnval
= (int) arg
;
1635 /* Check for overflows or underflows. */
1636 if (sizeof (LONGEST
) > sizeof (int))
1640 error (_("Value out of range."));
1646 /* Print a floating point value of floating-point type TYPE,
1647 pointed to in GDB by VALADDR, on STREAM. */
1650 print_floating (const gdb_byte
*valaddr
, struct type
*type
,
1651 struct ui_file
*stream
)
1653 std::string str
= target_float_to_string (valaddr
, type
);
1654 fputs_filtered (str
.c_str (), stream
);
1658 print_binary_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1659 unsigned len
, enum bfd_endian byte_order
, bool zero_pad
)
1664 bool seen_a_one
= false;
1666 /* Declared "int" so it will be signed.
1667 This ensures that right shift will shift in zeros. */
1669 const int mask
= 0x080;
1671 if (byte_order
== BFD_ENDIAN_BIG
)
1677 /* Every byte has 8 binary characters; peel off
1678 and print from the MSB end. */
1680 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1682 if (*p
& (mask
>> i
))
1687 if (zero_pad
|| seen_a_one
|| b
== '1')
1688 fputc_filtered (b
, stream
);
1696 for (p
= valaddr
+ len
- 1;
1700 for (i
= 0; i
< (HOST_CHAR_BIT
* sizeof (*p
)); i
++)
1702 if (*p
& (mask
>> i
))
1707 if (zero_pad
|| seen_a_one
|| b
== '1')
1708 fputc_filtered (b
, stream
);
1715 /* When not zero-padding, ensure that something is printed when the
1717 if (!zero_pad
&& !seen_a_one
)
1718 fputc_filtered ('0', stream
);
1721 /* A helper for print_octal_chars that emits a single octal digit,
1722 optionally suppressing it if is zero and updating SEEN_A_ONE. */
1725 emit_octal_digit (struct ui_file
*stream
, bool *seen_a_one
, int digit
)
1727 if (*seen_a_one
|| digit
!= 0)
1728 fprintf_filtered (stream
, "%o", digit
);
1733 /* VALADDR points to an integer of LEN bytes.
1734 Print it in octal on stream or format it in buf. */
1737 print_octal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1738 unsigned len
, enum bfd_endian byte_order
)
1741 unsigned char octa1
, octa2
, octa3
, carry
;
1744 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1745 * the extra bits, which cycle every three bytes:
1747 * Byte side: 0 1 2 3
1749 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1751 * Octal side: 0 1 carry 3 4 carry ...
1753 * Cycle number: 0 1 2
1755 * But of course we are printing from the high side, so we have to
1756 * figure out where in the cycle we are so that we end up with no
1757 * left over bits at the end.
1759 #define BITS_IN_OCTAL 3
1760 #define HIGH_ZERO 0340
1761 #define LOW_ZERO 0034
1762 #define CARRY_ZERO 0003
1763 static_assert (HIGH_ZERO
+ LOW_ZERO
+ CARRY_ZERO
== 0xff,
1764 "cycle zero constants are wrong");
1765 #define HIGH_ONE 0200
1766 #define MID_ONE 0160
1767 #define LOW_ONE 0016
1768 #define CARRY_ONE 0001
1769 static_assert (HIGH_ONE
+ MID_ONE
+ LOW_ONE
+ CARRY_ONE
== 0xff,
1770 "cycle one constants are wrong");
1771 #define HIGH_TWO 0300
1772 #define MID_TWO 0070
1773 #define LOW_TWO 0007
1774 static_assert (HIGH_TWO
+ MID_TWO
+ LOW_TWO
== 0xff,
1775 "cycle two constants are wrong");
1777 /* For 32 we start in cycle 2, with two bits and one bit carry;
1778 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1780 cycle
= (len
* HOST_CHAR_BIT
) % BITS_IN_OCTAL
;
1783 fputs_filtered ("0", stream
);
1784 bool seen_a_one
= false;
1785 if (byte_order
== BFD_ENDIAN_BIG
)
1794 /* No carry in, carry out two bits. */
1796 octa1
= (HIGH_ZERO
& *p
) >> 5;
1797 octa2
= (LOW_ZERO
& *p
) >> 2;
1798 carry
= (CARRY_ZERO
& *p
);
1799 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1800 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1804 /* Carry in two bits, carry out one bit. */
1806 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1807 octa2
= (MID_ONE
& *p
) >> 4;
1808 octa3
= (LOW_ONE
& *p
) >> 1;
1809 carry
= (CARRY_ONE
& *p
);
1810 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1811 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1812 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1816 /* Carry in one bit, no carry out. */
1818 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1819 octa2
= (MID_TWO
& *p
) >> 3;
1820 octa3
= (LOW_TWO
& *p
);
1822 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1823 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1824 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1828 error (_("Internal error in octal conversion;"));
1832 cycle
= cycle
% BITS_IN_OCTAL
;
1837 for (p
= valaddr
+ len
- 1;
1844 /* Carry out, no carry in */
1846 octa1
= (HIGH_ZERO
& *p
) >> 5;
1847 octa2
= (LOW_ZERO
& *p
) >> 2;
1848 carry
= (CARRY_ZERO
& *p
);
1849 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1850 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1854 /* Carry in, carry out */
1856 octa1
= (carry
<< 1) | ((HIGH_ONE
& *p
) >> 7);
1857 octa2
= (MID_ONE
& *p
) >> 4;
1858 octa3
= (LOW_ONE
& *p
) >> 1;
1859 carry
= (CARRY_ONE
& *p
);
1860 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1861 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1862 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1866 /* Carry in, no carry out */
1868 octa1
= (carry
<< 2) | ((HIGH_TWO
& *p
) >> 6);
1869 octa2
= (MID_TWO
& *p
) >> 3;
1870 octa3
= (LOW_TWO
& *p
);
1872 emit_octal_digit (stream
, &seen_a_one
, octa1
);
1873 emit_octal_digit (stream
, &seen_a_one
, octa2
);
1874 emit_octal_digit (stream
, &seen_a_one
, octa3
);
1878 error (_("Internal error in octal conversion;"));
1882 cycle
= cycle
% BITS_IN_OCTAL
;
1888 /* Possibly negate the integer represented by BYTES. It contains LEN
1889 bytes in the specified byte order. If the integer is negative,
1890 copy it into OUT_VEC, negate it, and return true. Otherwise, do
1891 nothing and return false. */
1894 maybe_negate_by_bytes (const gdb_byte
*bytes
, unsigned len
,
1895 enum bfd_endian byte_order
,
1896 gdb::byte_vector
*out_vec
)
1899 gdb_assert (len
> 0);
1900 if (byte_order
== BFD_ENDIAN_BIG
)
1901 sign_byte
= bytes
[0];
1903 sign_byte
= bytes
[len
- 1];
1904 if ((sign_byte
& 0x80) == 0)
1907 out_vec
->resize (len
);
1909 /* Compute -x == 1 + ~x. */
1910 if (byte_order
== BFD_ENDIAN_LITTLE
)
1913 for (unsigned i
= 0; i
< len
; ++i
)
1915 unsigned tem
= (0xff & ~bytes
[i
]) + carry
;
1916 (*out_vec
)[i
] = tem
& 0xff;
1923 for (unsigned i
= len
; i
> 0; --i
)
1925 unsigned tem
= (0xff & ~bytes
[i
- 1]) + carry
;
1926 (*out_vec
)[i
- 1] = tem
& 0xff;
1934 /* VALADDR points to an integer of LEN bytes.
1935 Print it in decimal on stream or format it in buf. */
1938 print_decimal_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
1939 unsigned len
, bool is_signed
,
1940 enum bfd_endian byte_order
)
1943 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1944 #define CARRY_LEFT( x ) ((x) % TEN)
1945 #define SHIFT( x ) ((x) << 4)
1946 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1947 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1952 int i
, j
, decimal_digits
;
1956 gdb::byte_vector negated_bytes
;
1958 && maybe_negate_by_bytes (valaddr
, len
, byte_order
, &negated_bytes
))
1960 fputs_filtered ("-", stream
);
1961 valaddr
= negated_bytes
.data ();
1964 /* Base-ten number is less than twice as many digits
1965 as the base 16 number, which is 2 digits per byte. */
1967 decimal_len
= len
* 2 * 2;
1968 std::vector
<unsigned char> digits (decimal_len
, 0);
1970 /* Ok, we have an unknown number of bytes of data to be printed in
1973 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1974 * decimalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1975 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1977 * The trick is that "digits" holds a base-10 number, but sometimes
1978 * the individual digits are > 10.
1980 * Outer loop is per nibble (hex digit) of input, from MSD end to
1983 decimal_digits
= 0; /* Number of decimal digits so far */
1984 p
= (byte_order
== BFD_ENDIAN_BIG
) ? valaddr
: valaddr
+ len
- 1;
1986 while ((byte_order
== BFD_ENDIAN_BIG
) ? (p
< valaddr
+ len
) : (p
>= valaddr
))
1989 * Multiply current base-ten number by 16 in place.
1990 * Each digit was between 0 and 9, now is between
1993 for (j
= 0; j
< decimal_digits
; j
++)
1995 digits
[j
] = SHIFT (digits
[j
]);
1998 /* Take the next nibble off the input and add it to what
1999 * we've got in the LSB position. Bottom 'digit' is now
2000 * between 0 and 159.
2002 * "flip" is used to run this loop twice for each byte.
2006 /* Take top nibble. */
2008 digits
[0] += HIGH_NIBBLE (*p
);
2013 /* Take low nibble and bump our pointer "p". */
2015 digits
[0] += LOW_NIBBLE (*p
);
2016 if (byte_order
== BFD_ENDIAN_BIG
)
2023 /* Re-decimalize. We have to do this often enough
2024 * that we don't overflow, but once per nibble is
2025 * overkill. Easier this way, though. Note that the
2026 * carry is often larger than 10 (e.g. max initial
2027 * carry out of lowest nibble is 15, could bubble all
2028 * the way up greater than 10). So we have to do
2029 * the carrying beyond the last current digit.
2032 for (j
= 0; j
< decimal_len
- 1; j
++)
2036 /* "/" won't handle an unsigned char with
2037 * a value that if signed would be negative.
2038 * So extend to longword int via "dummy".
2041 carry
= CARRY_OUT (dummy
);
2042 digits
[j
] = CARRY_LEFT (dummy
);
2044 if (j
>= decimal_digits
&& carry
== 0)
2047 * All higher digits are 0 and we
2048 * no longer have a carry.
2050 * Note: "j" is 0-based, "decimal_digits" is
2053 decimal_digits
= j
+ 1;
2059 /* Ok, now "digits" is the decimal representation, with
2060 the "decimal_digits" actual digits. Print! */
2062 for (i
= decimal_digits
- 1; i
> 0 && digits
[i
] == 0; --i
)
2067 fprintf_filtered (stream
, "%1d", digits
[i
]);
2071 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
2074 print_hex_chars (struct ui_file
*stream
, const gdb_byte
*valaddr
,
2075 unsigned len
, enum bfd_endian byte_order
,
2080 fputs_filtered ("0x", stream
);
2081 if (byte_order
== BFD_ENDIAN_BIG
)
2087 /* Strip leading 0 bytes, but be sure to leave at least a
2088 single byte at the end. */
2089 for (; p
< valaddr
+ len
- 1 && !*p
; ++p
)
2093 const gdb_byte
*first
= p
;
2098 /* When not zero-padding, use a different format for the
2099 very first byte printed. */
2100 if (!zero_pad
&& p
== first
)
2101 fprintf_filtered (stream
, "%x", *p
);
2103 fprintf_filtered (stream
, "%02x", *p
);
2108 p
= valaddr
+ len
- 1;
2112 /* Strip leading 0 bytes, but be sure to leave at least a
2113 single byte at the end. */
2114 for (; p
>= valaddr
+ 1 && !*p
; --p
)
2118 const gdb_byte
*first
= p
;
2123 /* When not zero-padding, use a different format for the
2124 very first byte printed. */
2125 if (!zero_pad
&& p
== first
)
2126 fprintf_filtered (stream
, "%x", *p
);
2128 fprintf_filtered (stream
, "%02x", *p
);
2133 /* VALADDR points to a char integer of LEN bytes.
2134 Print it out in appropriate language form on stream.
2135 Omit any leading zero chars. */
2138 print_char_chars (struct ui_file
*stream
, struct type
*type
,
2139 const gdb_byte
*valaddr
,
2140 unsigned len
, enum bfd_endian byte_order
)
2144 if (byte_order
== BFD_ENDIAN_BIG
)
2147 while (p
< valaddr
+ len
- 1 && *p
== 0)
2150 while (p
< valaddr
+ len
)
2152 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
2158 p
= valaddr
+ len
- 1;
2159 while (p
> valaddr
&& *p
== 0)
2162 while (p
>= valaddr
)
2164 LA_EMIT_CHAR (*p
, type
, stream
, '\'');
2170 /* Print function pointer with inferior address ADDRESS onto stdio
2174 print_function_pointer_address (const struct value_print_options
*options
,
2175 struct gdbarch
*gdbarch
,
2177 struct ui_file
*stream
)
2180 = gdbarch_convert_from_func_ptr_addr (gdbarch
, address
,
2181 current_top_target ());
2183 /* If the function pointer is represented by a description, print
2184 the address of the description. */
2185 if (options
->addressprint
&& func_addr
!= address
)
2187 fputs_filtered ("@", stream
);
2188 fputs_filtered (paddress (gdbarch
, address
), stream
);
2189 fputs_filtered (": ", stream
);
2191 print_address_demangle (options
, gdbarch
, func_addr
, stream
, demangle
);
2195 /* Print on STREAM using the given OPTIONS the index for the element
2196 at INDEX of an array whose index type is INDEX_TYPE. */
2199 maybe_print_array_index (struct type
*index_type
, LONGEST index
,
2200 struct ui_file
*stream
,
2201 const struct value_print_options
*options
)
2203 struct value
*index_value
;
2205 if (!options
->print_array_indexes
)
2208 index_value
= value_from_longest (index_type
, index
);
2210 LA_PRINT_ARRAY_INDEX (index_value
, stream
, options
);
2213 /* Called by various <lang>_val_print routines to print elements of an
2214 array in the form "<elem1>, <elem2>, <elem3>, ...".
2216 (FIXME?) Assumes array element separator is a comma, which is correct
2217 for all languages currently handled.
2218 (FIXME?) Some languages have a notation for repeated array elements,
2219 perhaps we should try to use that notation when appropriate. */
2222 val_print_array_elements (struct type
*type
,
2223 LONGEST embedded_offset
,
2224 CORE_ADDR address
, struct ui_file
*stream
,
2227 const struct value_print_options
*options
,
2230 unsigned int things_printed
= 0;
2232 struct type
*elttype
, *index_type
, *base_index_type
;
2234 /* Position of the array element we are examining to see
2235 whether it is repeated. */
2237 /* Number of repetitions we have detected so far. */
2239 LONGEST low_bound
, high_bound
;
2240 LONGEST low_pos
, high_pos
;
2242 elttype
= TYPE_TARGET_TYPE (type
);
2243 eltlen
= type_length_units (check_typedef (elttype
));
2244 index_type
= TYPE_INDEX_TYPE (type
);
2246 if (get_array_bounds (type
, &low_bound
, &high_bound
))
2248 if (TYPE_CODE (index_type
) == TYPE_CODE_RANGE
)
2249 base_index_type
= TYPE_TARGET_TYPE (index_type
);
2251 base_index_type
= index_type
;
2253 /* Non-contiguous enumerations types can by used as index types
2254 in some languages (e.g. Ada). In this case, the array length
2255 shall be computed from the positions of the first and last
2256 literal in the enumeration type, and not from the values
2257 of these literals. */
2258 if (!discrete_position (base_index_type
, low_bound
, &low_pos
)
2259 || !discrete_position (base_index_type
, high_bound
, &high_pos
))
2261 warning (_("unable to get positions in array, use bounds instead"));
2262 low_pos
= low_bound
;
2263 high_pos
= high_bound
;
2266 /* The array length should normally be HIGH_POS - LOW_POS + 1.
2267 But we have to be a little extra careful, because some languages
2268 such as Ada allow LOW_POS to be greater than HIGH_POS for
2269 empty arrays. In that situation, the array length is just zero,
2271 if (low_pos
> high_pos
)
2274 len
= high_pos
- low_pos
+ 1;
2278 warning (_("unable to get bounds of array, assuming null array"));
2283 annotate_array_section_begin (i
, elttype
);
2285 for (; i
< len
&& things_printed
< options
->print_max
; i
++)
2289 if (options
->prettyformat_arrays
)
2291 fprintf_filtered (stream
, ",\n");
2292 print_spaces_filtered (2 + 2 * recurse
, stream
);
2296 fprintf_filtered (stream
, ", ");
2299 wrap_here (n_spaces (2 + 2 * recurse
));
2300 maybe_print_array_index (index_type
, i
+ low_bound
,
2305 /* Only check for reps if repeat_count_threshold is not set to
2306 UINT_MAX (unlimited). */
2307 if (options
->repeat_count_threshold
< UINT_MAX
)
2310 && value_contents_eq (val
,
2311 embedded_offset
+ i
* eltlen
,
2322 if (reps
> options
->repeat_count_threshold
)
2324 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2325 address
, stream
, recurse
+ 1, val
, options
,
2327 annotate_elt_rep (reps
);
2328 fprintf_filtered (stream
, " %p[<repeats %u times>%p]",
2329 metadata_style
.style ().ptr (), reps
, nullptr);
2330 annotate_elt_rep_end ();
2333 things_printed
+= options
->repeat_count_threshold
;
2337 val_print (elttype
, embedded_offset
+ i
* eltlen
,
2339 stream
, recurse
+ 1, val
, options
, current_language
);
2344 annotate_array_section_end ();
2347 fprintf_filtered (stream
, "...");
2351 /* See valprint.h. */
2354 value_print_array_elements (struct value
*val
, struct ui_file
*stream
,
2356 const struct value_print_options
*options
,
2359 unsigned int things_printed
= 0;
2361 struct type
*elttype
, *index_type
, *base_index_type
;
2363 /* Position of the array element we are examining to see
2364 whether it is repeated. */
2366 /* Number of repetitions we have detected so far. */
2368 LONGEST low_bound
, high_bound
;
2369 LONGEST low_pos
, high_pos
;
2371 struct type
*type
= check_typedef (value_type (val
));
2373 elttype
= TYPE_TARGET_TYPE (type
);
2374 eltlen
= type_length_units (check_typedef (elttype
));
2375 index_type
= TYPE_INDEX_TYPE (type
);
2377 if (get_array_bounds (type
, &low_bound
, &high_bound
))
2379 if (TYPE_CODE (index_type
) == TYPE_CODE_RANGE
)
2380 base_index_type
= TYPE_TARGET_TYPE (index_type
);
2382 base_index_type
= index_type
;
2384 /* Non-contiguous enumerations types can by used as index types
2385 in some languages (e.g. Ada). In this case, the array length
2386 shall be computed from the positions of the first and last
2387 literal in the enumeration type, and not from the values
2388 of these literals. */
2389 if (!discrete_position (base_index_type
, low_bound
, &low_pos
)
2390 || !discrete_position (base_index_type
, high_bound
, &high_pos
))
2392 warning (_("unable to get positions in array, use bounds instead"));
2393 low_pos
= low_bound
;
2394 high_pos
= high_bound
;
2397 /* The array length should normally be HIGH_POS - LOW_POS + 1.
2398 But we have to be a little extra careful, because some languages
2399 such as Ada allow LOW_POS to be greater than HIGH_POS for
2400 empty arrays. In that situation, the array length is just zero,
2402 if (low_pos
> high_pos
)
2405 len
= high_pos
- low_pos
+ 1;
2409 warning (_("unable to get bounds of array, assuming null array"));
2414 annotate_array_section_begin (i
, elttype
);
2416 for (; i
< len
&& things_printed
< options
->print_max
; i
++)
2418 scoped_value_mark free_values
;
2422 if (options
->prettyformat_arrays
)
2424 fprintf_filtered (stream
, ",\n");
2425 print_spaces_filtered (2 + 2 * recurse
, stream
);
2428 fprintf_filtered (stream
, ", ");
2430 wrap_here (n_spaces (2 + 2 * recurse
));
2431 maybe_print_array_index (index_type
, i
+ low_bound
,
2436 /* Only check for reps if repeat_count_threshold is not set to
2437 UINT_MAX (unlimited). */
2438 if (options
->repeat_count_threshold
< UINT_MAX
)
2441 && value_contents_eq (val
, i
* eltlen
,
2450 struct value
*element
= value_from_component (val
, elttype
, eltlen
* i
);
2451 common_val_print (element
, stream
, recurse
+ 1, options
,
2454 if (reps
> options
->repeat_count_threshold
)
2456 annotate_elt_rep (reps
);
2457 fprintf_filtered (stream
, " %p[<repeats %u times>%p]",
2458 metadata_style
.style ().ptr (), reps
, nullptr);
2459 annotate_elt_rep_end ();
2462 things_printed
+= options
->repeat_count_threshold
;
2470 annotate_array_section_end ();
2472 fprintf_filtered (stream
, "...");
2475 /* Read LEN bytes of target memory at address MEMADDR, placing the
2476 results in GDB's memory at MYADDR. Returns a count of the bytes
2477 actually read, and optionally a target_xfer_status value in the
2478 location pointed to by ERRPTR if ERRPTR is non-null. */
2480 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
2481 function be eliminated. */
2484 partial_memory_read (CORE_ADDR memaddr
, gdb_byte
*myaddr
,
2485 int len
, int *errptr
)
2487 int nread
; /* Number of bytes actually read. */
2488 int errcode
; /* Error from last read. */
2490 /* First try a complete read. */
2491 errcode
= target_read_memory (memaddr
, myaddr
, len
);
2499 /* Loop, reading one byte at a time until we get as much as we can. */
2500 for (errcode
= 0, nread
= 0; len
> 0 && errcode
== 0; nread
++, len
--)
2502 errcode
= target_read_memory (memaddr
++, myaddr
++, 1);
2504 /* If an error, the last read was unsuccessful, so adjust count. */
2517 /* Read a string from the inferior, at ADDR, with LEN characters of
2518 WIDTH bytes each. Fetch at most FETCHLIMIT characters. BUFFER
2519 will be set to a newly allocated buffer containing the string, and
2520 BYTES_READ will be set to the number of bytes read. Returns 0 on
2521 success, or a target_xfer_status on failure.
2523 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
2524 (including eventual NULs in the middle or end of the string).
2526 If LEN is -1, stops at the first null character (not necessarily
2527 the first null byte) up to a maximum of FETCHLIMIT characters. Set
2528 FETCHLIMIT to UINT_MAX to read as many characters as possible from
2531 Unless an exception is thrown, BUFFER will always be allocated, even on
2532 failure. In this case, some characters might have been read before the
2533 failure happened. Check BYTES_READ to recognize this situation.
2535 Note: There was a FIXME asking to make this code use target_read_string,
2536 but this function is more general (can read past null characters, up to
2537 given LEN). Besides, it is used much more often than target_read_string
2538 so it is more tested. Perhaps callers of target_read_string should use
2539 this function instead? */
2542 read_string (CORE_ADDR addr
, int len
, int width
, unsigned int fetchlimit
,
2543 enum bfd_endian byte_order
, gdb::unique_xmalloc_ptr
<gdb_byte
> *buffer
,
2546 int errcode
; /* Errno returned from bad reads. */
2547 unsigned int nfetch
; /* Chars to fetch / chars fetched. */
2548 gdb_byte
*bufptr
; /* Pointer to next available byte in
2551 /* Loop until we either have all the characters, or we encounter
2552 some error, such as bumping into the end of the address space. */
2554 buffer
->reset (nullptr);
2558 /* We want fetchlimit chars, so we might as well read them all in
2560 unsigned int fetchlen
= std::min ((unsigned) len
, fetchlimit
);
2562 buffer
->reset ((gdb_byte
*) xmalloc (fetchlen
* width
));
2563 bufptr
= buffer
->get ();
2565 nfetch
= partial_memory_read (addr
, bufptr
, fetchlen
* width
, &errcode
)
2567 addr
+= nfetch
* width
;
2568 bufptr
+= nfetch
* width
;
2572 unsigned long bufsize
= 0;
2573 unsigned int chunksize
; /* Size of each fetch, in chars. */
2574 int found_nul
; /* Non-zero if we found the nul char. */
2575 gdb_byte
*limit
; /* First location past end of fetch buffer. */
2578 /* We are looking for a NUL terminator to end the fetching, so we
2579 might as well read in blocks that are large enough to be efficient,
2580 but not so large as to be slow if fetchlimit happens to be large.
2581 So we choose the minimum of 8 and fetchlimit. We used to use 200
2582 instead of 8 but 200 is way too big for remote debugging over a
2584 chunksize
= std::min (8u, fetchlimit
);
2589 nfetch
= std::min ((unsigned long) chunksize
, fetchlimit
- bufsize
);
2591 if (*buffer
== NULL
)
2592 buffer
->reset ((gdb_byte
*) xmalloc (nfetch
* width
));
2594 buffer
->reset ((gdb_byte
*) xrealloc (buffer
->release (),
2595 (nfetch
+ bufsize
) * width
));
2597 bufptr
= buffer
->get () + bufsize
* width
;
2600 /* Read as much as we can. */
2601 nfetch
= partial_memory_read (addr
, bufptr
, nfetch
* width
, &errcode
)
2604 /* Scan this chunk for the null character that terminates the string
2605 to print. If found, we don't need to fetch any more. Note
2606 that bufptr is explicitly left pointing at the next character
2607 after the null character, or at the next character after the end
2610 limit
= bufptr
+ nfetch
* width
;
2611 while (bufptr
< limit
)
2615 c
= extract_unsigned_integer (bufptr
, width
, byte_order
);
2620 /* We don't care about any error which happened after
2621 the NUL terminator. */
2628 while (errcode
== 0 /* no error */
2629 && bufptr
- buffer
->get () < fetchlimit
* width
/* no overrun */
2630 && !found_nul
); /* haven't found NUL yet */
2633 { /* Length of string is really 0! */
2634 /* We always allocate *buffer. */
2635 buffer
->reset ((gdb_byte
*) xmalloc (1));
2636 bufptr
= buffer
->get ();
2640 /* bufptr and addr now point immediately beyond the last byte which we
2641 consider part of the string (including a '\0' which ends the string). */
2642 *bytes_read
= bufptr
- buffer
->get ();
2649 /* Return true if print_wchar can display W without resorting to a
2650 numeric escape, false otherwise. */
2653 wchar_printable (gdb_wchar_t w
)
2655 return (gdb_iswprint (w
)
2656 || w
== LCST ('\a') || w
== LCST ('\b')
2657 || w
== LCST ('\f') || w
== LCST ('\n')
2658 || w
== LCST ('\r') || w
== LCST ('\t')
2659 || w
== LCST ('\v'));
2662 /* A helper function that converts the contents of STRING to wide
2663 characters and then appends them to OUTPUT. */
2666 append_string_as_wide (const char *string
,
2667 struct obstack
*output
)
2669 for (; *string
; ++string
)
2671 gdb_wchar_t w
= gdb_btowc (*string
);
2672 obstack_grow (output
, &w
, sizeof (gdb_wchar_t
));
2676 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2677 original (target) bytes representing the character, ORIG_LEN is the
2678 number of valid bytes. WIDTH is the number of bytes in a base
2679 characters of the type. OUTPUT is an obstack to which wide
2680 characters are emitted. QUOTER is a (narrow) character indicating
2681 the style of quotes surrounding the character to be printed.
2682 NEED_ESCAPE is an in/out flag which is used to track numeric
2683 escapes across calls. */
2686 print_wchar (gdb_wint_t w
, const gdb_byte
*orig
,
2687 int orig_len
, int width
,
2688 enum bfd_endian byte_order
,
2689 struct obstack
*output
,
2690 int quoter
, int *need_escapep
)
2692 int need_escape
= *need_escapep
;
2696 /* iswprint implementation on Windows returns 1 for tab character.
2697 In order to avoid different printout on this host, we explicitly
2698 use wchar_printable function. */
2702 obstack_grow_wstr (output
, LCST ("\\a"));
2705 obstack_grow_wstr (output
, LCST ("\\b"));
2708 obstack_grow_wstr (output
, LCST ("\\f"));
2711 obstack_grow_wstr (output
, LCST ("\\n"));
2714 obstack_grow_wstr (output
, LCST ("\\r"));
2717 obstack_grow_wstr (output
, LCST ("\\t"));
2720 obstack_grow_wstr (output
, LCST ("\\v"));
2724 if (wchar_printable (w
) && (!need_escape
|| (!gdb_iswdigit (w
)
2726 && w
!= LCST ('9'))))
2728 gdb_wchar_t wchar
= w
;
2730 if (w
== gdb_btowc (quoter
) || w
== LCST ('\\'))
2731 obstack_grow_wstr (output
, LCST ("\\"));
2732 obstack_grow (output
, &wchar
, sizeof (gdb_wchar_t
));
2738 for (i
= 0; i
+ width
<= orig_len
; i
+= width
)
2743 value
= extract_unsigned_integer (&orig
[i
], width
,
2745 /* If the value fits in 3 octal digits, print it that
2746 way. Otherwise, print it as a hex escape. */
2748 xsnprintf (octal
, sizeof (octal
), "\\%.3o",
2749 (int) (value
& 0777));
2751 xsnprintf (octal
, sizeof (octal
), "\\x%lx", (long) value
);
2752 append_string_as_wide (octal
, output
);
2754 /* If we somehow have extra bytes, print them now. */
2755 while (i
< orig_len
)
2759 xsnprintf (octal
, sizeof (octal
), "\\%.3o", orig
[i
] & 0xff);
2760 append_string_as_wide (octal
, output
);
2771 /* Print the character C on STREAM as part of the contents of a
2772 literal string whose delimiter is QUOTER. ENCODING names the
2776 generic_emit_char (int c
, struct type
*type
, struct ui_file
*stream
,
2777 int quoter
, const char *encoding
)
2779 enum bfd_endian byte_order
2780 = type_byte_order (type
);
2782 int need_escape
= 0;
2784 c_buf
= (gdb_byte
*) alloca (TYPE_LENGTH (type
));
2785 pack_long (c_buf
, type
, c
);
2787 wchar_iterator
iter (c_buf
, TYPE_LENGTH (type
), encoding
, TYPE_LENGTH (type
));
2789 /* This holds the printable form of the wchar_t data. */
2790 auto_obstack wchar_buf
;
2796 const gdb_byte
*buf
;
2798 int print_escape
= 1;
2799 enum wchar_iterate_result result
;
2801 num_chars
= iter
.iterate (&result
, &chars
, &buf
, &buflen
);
2806 /* If all characters are printable, print them. Otherwise,
2807 we're going to have to print an escape sequence. We
2808 check all characters because we want to print the target
2809 bytes in the escape sequence, and we don't know character
2810 boundaries there. */
2814 for (i
= 0; i
< num_chars
; ++i
)
2815 if (!wchar_printable (chars
[i
]))
2823 for (i
= 0; i
< num_chars
; ++i
)
2824 print_wchar (chars
[i
], buf
, buflen
,
2825 TYPE_LENGTH (type
), byte_order
,
2826 &wchar_buf
, quoter
, &need_escape
);
2830 /* This handles the NUM_CHARS == 0 case as well. */
2832 print_wchar (gdb_WEOF
, buf
, buflen
, TYPE_LENGTH (type
),
2833 byte_order
, &wchar_buf
, quoter
, &need_escape
);
2836 /* The output in the host encoding. */
2837 auto_obstack output
;
2839 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
2840 (gdb_byte
*) obstack_base (&wchar_buf
),
2841 obstack_object_size (&wchar_buf
),
2842 sizeof (gdb_wchar_t
), &output
, translit_char
);
2843 obstack_1grow (&output
, '\0');
2845 fputs_filtered ((const char *) obstack_base (&output
), stream
);
2848 /* Return the repeat count of the next character/byte in ITER,
2849 storing the result in VEC. */
2852 count_next_character (wchar_iterator
*iter
,
2853 std::vector
<converted_character
> *vec
)
2855 struct converted_character
*current
;
2859 struct converted_character tmp
;
2863 = iter
->iterate (&tmp
.result
, &chars
, &tmp
.buf
, &tmp
.buflen
);
2864 if (tmp
.num_chars
> 0)
2866 gdb_assert (tmp
.num_chars
< MAX_WCHARS
);
2867 memcpy (tmp
.chars
, chars
, tmp
.num_chars
* sizeof (gdb_wchar_t
));
2869 vec
->push_back (tmp
);
2872 current
= &vec
->back ();
2874 /* Count repeated characters or bytes. */
2875 current
->repeat_count
= 1;
2876 if (current
->num_chars
== -1)
2884 struct converted_character d
;
2891 /* Get the next character. */
2892 d
.num_chars
= iter
->iterate (&d
.result
, &chars
, &d
.buf
, &d
.buflen
);
2894 /* If a character was successfully converted, save the character
2895 into the converted character. */
2896 if (d
.num_chars
> 0)
2898 gdb_assert (d
.num_chars
< MAX_WCHARS
);
2899 memcpy (d
.chars
, chars
, WCHAR_BUFLEN (d
.num_chars
));
2902 /* Determine if the current character is the same as this
2904 if (d
.num_chars
== current
->num_chars
&& d
.result
== current
->result
)
2906 /* There are two cases to consider:
2908 1) Equality of converted character (num_chars > 0)
2909 2) Equality of non-converted character (num_chars == 0) */
2910 if ((current
->num_chars
> 0
2911 && memcmp (current
->chars
, d
.chars
,
2912 WCHAR_BUFLEN (current
->num_chars
)) == 0)
2913 || (current
->num_chars
== 0
2914 && current
->buflen
== d
.buflen
2915 && memcmp (current
->buf
, d
.buf
, current
->buflen
) == 0))
2916 ++current
->repeat_count
;
2924 /* Push this next converted character onto the result vector. */
2925 repeat
= current
->repeat_count
;
2931 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2932 character to use with string output. WIDTH is the size of the output
2933 character type. BYTE_ORDER is the target byte order. OPTIONS
2934 is the user's print options. */
2937 print_converted_chars_to_obstack (struct obstack
*obstack
,
2938 const std::vector
<converted_character
> &chars
,
2939 int quote_char
, int width
,
2940 enum bfd_endian byte_order
,
2941 const struct value_print_options
*options
)
2944 const converted_character
*elem
;
2945 enum {START
, SINGLE
, REPEAT
, INCOMPLETE
, FINISH
} state
, last
;
2946 gdb_wchar_t wide_quote_char
= gdb_btowc (quote_char
);
2947 int need_escape
= 0;
2949 /* Set the start state. */
2951 last
= state
= START
;
2959 /* Nothing to do. */
2966 /* We are outputting a single character
2967 (< options->repeat_count_threshold). */
2971 /* We were outputting some other type of content, so we
2972 must output and a comma and a quote. */
2974 obstack_grow_wstr (obstack
, LCST (", "));
2975 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
2977 /* Output the character. */
2978 for (j
= 0; j
< elem
->repeat_count
; ++j
)
2980 if (elem
->result
== wchar_iterate_ok
)
2981 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
2982 byte_order
, obstack
, quote_char
, &need_escape
);
2984 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
2985 byte_order
, obstack
, quote_char
, &need_escape
);
2994 /* We are outputting a character with a repeat count
2995 greater than options->repeat_count_threshold. */
2999 /* We were outputting a single string. Terminate the
3001 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
3004 obstack_grow_wstr (obstack
, LCST (", "));
3006 /* Output the character and repeat string. */
3007 obstack_grow_wstr (obstack
, LCST ("'"));
3008 if (elem
->result
== wchar_iterate_ok
)
3009 print_wchar (elem
->chars
[0], elem
->buf
, elem
->buflen
, width
,
3010 byte_order
, obstack
, quote_char
, &need_escape
);
3012 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
,
3013 byte_order
, obstack
, quote_char
, &need_escape
);
3014 obstack_grow_wstr (obstack
, LCST ("'"));
3015 std::string s
= string_printf (_(" <repeats %u times>"),
3016 elem
->repeat_count
);
3017 for (j
= 0; s
[j
]; ++j
)
3019 gdb_wchar_t w
= gdb_btowc (s
[j
]);
3020 obstack_grow (obstack
, &w
, sizeof (gdb_wchar_t
));
3026 /* We are outputting an incomplete sequence. */
3029 /* If we were outputting a string of SINGLE characters,
3030 terminate the quote. */
3031 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
3034 obstack_grow_wstr (obstack
, LCST (", "));
3036 /* Output the incomplete sequence string. */
3037 obstack_grow_wstr (obstack
, LCST ("<incomplete sequence "));
3038 print_wchar (gdb_WEOF
, elem
->buf
, elem
->buflen
, width
, byte_order
,
3039 obstack
, 0, &need_escape
);
3040 obstack_grow_wstr (obstack
, LCST (">"));
3042 /* We do not attempt to output anything after this. */
3047 /* All done. If we were outputting a string of SINGLE
3048 characters, the string must be terminated. Otherwise,
3049 REPEAT and INCOMPLETE are always left properly terminated. */
3051 obstack_grow (obstack
, &wide_quote_char
, sizeof (gdb_wchar_t
));
3056 /* Get the next element and state. */
3058 if (state
!= FINISH
)
3060 elem
= &chars
[idx
++];
3061 switch (elem
->result
)
3063 case wchar_iterate_ok
:
3064 case wchar_iterate_invalid
:
3065 if (elem
->repeat_count
> options
->repeat_count_threshold
)
3071 case wchar_iterate_incomplete
:
3075 case wchar_iterate_eof
:
3083 /* Print the character string STRING, printing at most LENGTH
3084 characters. LENGTH is -1 if the string is nul terminated. TYPE is
3085 the type of each character. OPTIONS holds the printing options;
3086 printing stops early if the number hits print_max; repeat counts
3087 are printed as appropriate. Print ellipses at the end if we had to
3088 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
3089 QUOTE_CHAR is the character to print at each end of the string. If
3090 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
3094 generic_printstr (struct ui_file
*stream
, struct type
*type
,
3095 const gdb_byte
*string
, unsigned int length
,
3096 const char *encoding
, int force_ellipses
,
3097 int quote_char
, int c_style_terminator
,
3098 const struct value_print_options
*options
)
3100 enum bfd_endian byte_order
= type_byte_order (type
);
3102 int width
= TYPE_LENGTH (type
);
3104 struct converted_character
*last
;
3108 unsigned long current_char
= 1;
3110 for (i
= 0; current_char
; ++i
)
3113 current_char
= extract_unsigned_integer (string
+ i
* width
,
3119 /* If the string was not truncated due to `set print elements', and
3120 the last byte of it is a null, we don't print that, in
3121 traditional C style. */
3122 if (c_style_terminator
3125 && (extract_unsigned_integer (string
+ (length
- 1) * width
,
3126 width
, byte_order
) == 0))
3131 fputs_filtered ("\"\"", stream
);
3135 /* Arrange to iterate over the characters, in wchar_t form. */
3136 wchar_iterator
iter (string
, length
* width
, encoding
, width
);
3137 std::vector
<converted_character
> converted_chars
;
3139 /* Convert characters until the string is over or the maximum
3140 number of printed characters has been reached. */
3142 while (i
< options
->print_max
)
3148 /* Grab the next character and repeat count. */
3149 r
= count_next_character (&iter
, &converted_chars
);
3151 /* If less than zero, the end of the input string was reached. */
3155 /* Otherwise, add the count to the total print count and get
3156 the next character. */
3160 /* Get the last element and determine if the entire string was
3162 last
= &converted_chars
.back ();
3163 finished
= (last
->result
== wchar_iterate_eof
);
3165 /* Ensure that CONVERTED_CHARS is terminated. */
3166 last
->result
= wchar_iterate_eof
;
3168 /* WCHAR_BUF is the obstack we use to represent the string in
3170 auto_obstack wchar_buf
;
3172 /* Print the output string to the obstack. */
3173 print_converted_chars_to_obstack (&wchar_buf
, converted_chars
, quote_char
,
3174 width
, byte_order
, options
);
3176 if (force_ellipses
|| !finished
)
3177 obstack_grow_wstr (&wchar_buf
, LCST ("..."));
3179 /* OUTPUT is where we collect `char's for printing. */
3180 auto_obstack output
;
3182 convert_between_encodings (INTERMEDIATE_ENCODING
, host_charset (),
3183 (gdb_byte
*) obstack_base (&wchar_buf
),
3184 obstack_object_size (&wchar_buf
),
3185 sizeof (gdb_wchar_t
), &output
, translit_char
);
3186 obstack_1grow (&output
, '\0');
3188 fputs_filtered ((const char *) obstack_base (&output
), stream
);
3191 /* Print a string from the inferior, starting at ADDR and printing up to LEN
3192 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
3193 stops at the first null byte, otherwise printing proceeds (including null
3194 bytes) until either print_max or LEN characters have been printed,
3195 whichever is smaller. ENCODING is the name of the string's
3196 encoding. It can be NULL, in which case the target encoding is
3200 val_print_string (struct type
*elttype
, const char *encoding
,
3201 CORE_ADDR addr
, int len
,
3202 struct ui_file
*stream
,
3203 const struct value_print_options
*options
)
3205 int force_ellipsis
= 0; /* Force ellipsis to be printed if nonzero. */
3206 int err
; /* Non-zero if we got a bad read. */
3207 int found_nul
; /* Non-zero if we found the nul char. */
3208 unsigned int fetchlimit
; /* Maximum number of chars to print. */
3210 gdb::unique_xmalloc_ptr
<gdb_byte
> buffer
; /* Dynamically growable fetch buffer. */
3211 struct gdbarch
*gdbarch
= get_type_arch (elttype
);
3212 enum bfd_endian byte_order
= type_byte_order (elttype
);
3213 int width
= TYPE_LENGTH (elttype
);
3215 /* First we need to figure out the limit on the number of characters we are
3216 going to attempt to fetch and print. This is actually pretty simple. If
3217 LEN >= zero, then the limit is the minimum of LEN and print_max. If
3218 LEN is -1, then the limit is print_max. This is true regardless of
3219 whether print_max is zero, UINT_MAX (unlimited), or something in between,
3220 because finding the null byte (or available memory) is what actually
3221 limits the fetch. */
3223 fetchlimit
= (len
== -1 ? options
->print_max
: std::min ((unsigned) len
,
3224 options
->print_max
));
3226 err
= read_string (addr
, len
, width
, fetchlimit
, byte_order
,
3227 &buffer
, &bytes_read
);
3231 /* We now have either successfully filled the buffer to fetchlimit,
3232 or terminated early due to an error or finding a null char when
3235 /* Determine found_nul by looking at the last character read. */
3237 if (bytes_read
>= width
)
3238 found_nul
= extract_unsigned_integer (buffer
.get () + bytes_read
- width
,
3239 width
, byte_order
) == 0;
3240 if (len
== -1 && !found_nul
)
3244 /* We didn't find a NUL terminator we were looking for. Attempt
3245 to peek at the next character. If not successful, or it is not
3246 a null byte, then force ellipsis to be printed. */
3248 peekbuf
= (gdb_byte
*) alloca (width
);
3250 if (target_read_memory (addr
, peekbuf
, width
) == 0
3251 && extract_unsigned_integer (peekbuf
, width
, byte_order
) != 0)
3254 else if ((len
>= 0 && err
!= 0) || (len
> bytes_read
/ width
))
3256 /* Getting an error when we have a requested length, or fetching less
3257 than the number of characters actually requested, always make us
3262 /* If we get an error before fetching anything, don't print a string.
3263 But if we fetch something and then get an error, print the string
3264 and then the error message. */
3265 if (err
== 0 || bytes_read
> 0)
3267 LA_PRINT_STRING (stream
, elttype
, buffer
.get (), bytes_read
/ width
,
3268 encoding
, force_ellipsis
, options
);
3273 std::string str
= memory_error_message (TARGET_XFER_E_IO
, gdbarch
, addr
);
3275 fprintf_filtered (stream
, _("<error: %ps>"),
3276 styled_string (metadata_style
.style (),
3280 return (bytes_read
/ width
);
3283 /* Handle 'show print max-depth'. */
3286 show_print_max_depth (struct ui_file
*file
, int from_tty
,
3287 struct cmd_list_element
*c
, const char *value
)
3289 fprintf_filtered (file
, _("Maximum print depth is %s.\n"), value
);
3293 /* The 'set input-radix' command writes to this auxiliary variable.
3294 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
3295 it is left unchanged. */
3297 static unsigned input_radix_1
= 10;
3299 /* Validate an input or output radix setting, and make sure the user
3300 knows what they really did here. Radix setting is confusing, e.g.
3301 setting the input radix to "10" never changes it! */
3304 set_input_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
3306 set_input_radix_1 (from_tty
, input_radix_1
);
3310 set_input_radix_1 (int from_tty
, unsigned radix
)
3312 /* We don't currently disallow any input radix except 0 or 1, which don't
3313 make any mathematical sense. In theory, we can deal with any input
3314 radix greater than 1, even if we don't have unique digits for every
3315 value from 0 to radix-1, but in practice we lose on large radix values.
3316 We should either fix the lossage or restrict the radix range more.
3321 input_radix_1
= input_radix
;
3322 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
3325 input_radix_1
= input_radix
= radix
;
3328 printf_filtered (_("Input radix now set to "
3329 "decimal %u, hex %x, octal %o.\n"),
3330 radix
, radix
, radix
);
3334 /* The 'set output-radix' command writes to this auxiliary variable.
3335 If the requested radix is valid, OUTPUT_RADIX is updated,
3336 otherwise, it is left unchanged. */
3338 static unsigned output_radix_1
= 10;
3341 set_output_radix (const char *args
, int from_tty
, struct cmd_list_element
*c
)
3343 set_output_radix_1 (from_tty
, output_radix_1
);
3347 set_output_radix_1 (int from_tty
, unsigned radix
)
3349 /* Validate the radix and disallow ones that we aren't prepared to
3350 handle correctly, leaving the radix unchanged. */
3354 user_print_options
.output_format
= 'x'; /* hex */
3357 user_print_options
.output_format
= 0; /* decimal */
3360 user_print_options
.output_format
= 'o'; /* octal */
3363 output_radix_1
= output_radix
;
3364 error (_("Unsupported output radix ``decimal %u''; "
3365 "output radix unchanged."),
3368 output_radix_1
= output_radix
= radix
;
3371 printf_filtered (_("Output radix now set to "
3372 "decimal %u, hex %x, octal %o.\n"),
3373 radix
, radix
, radix
);
3377 /* Set both the input and output radix at once. Try to set the output radix
3378 first, since it has the most restrictive range. An radix that is valid as
3379 an output radix is also valid as an input radix.
3381 It may be useful to have an unusual input radix. If the user wishes to
3382 set an input radix that is not valid as an output radix, he needs to use
3383 the 'set input-radix' command. */
3386 set_radix (const char *arg
, int from_tty
)
3390 radix
= (arg
== NULL
) ? 10 : parse_and_eval_long (arg
);
3391 set_output_radix_1 (0, radix
);
3392 set_input_radix_1 (0, radix
);
3395 printf_filtered (_("Input and output radices now set to "
3396 "decimal %u, hex %x, octal %o.\n"),
3397 radix
, radix
, radix
);
3401 /* Show both the input and output radices. */
3404 show_radix (const char *arg
, int from_tty
)
3408 if (input_radix
== output_radix
)
3410 printf_filtered (_("Input and output radices set to "
3411 "decimal %u, hex %x, octal %o.\n"),
3412 input_radix
, input_radix
, input_radix
);
3416 printf_filtered (_("Input radix set to decimal "
3417 "%u, hex %x, octal %o.\n"),
3418 input_radix
, input_radix
, input_radix
);
3419 printf_filtered (_("Output radix set to decimal "
3420 "%u, hex %x, octal %o.\n"),
3421 output_radix
, output_radix
, output_radix
);
3428 set_print (const char *arg
, int from_tty
)
3431 "\"set print\" must be followed by the name of a print subcommand.\n");
3432 help_list (setprintlist
, "set print ", all_commands
, gdb_stdout
);
3436 show_print (const char *args
, int from_tty
)
3438 cmd_show_list (showprintlist
, from_tty
, "");
3442 set_print_raw (const char *arg
, int from_tty
)
3445 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
3446 help_list (setprintrawlist
, "set print raw ", all_commands
, gdb_stdout
);
3450 show_print_raw (const char *args
, int from_tty
)
3452 cmd_show_list (showprintrawlist
, from_tty
, "");
3455 /* Controls printing of vtbl's. */
3457 show_vtblprint (struct ui_file
*file
, int from_tty
,
3458 struct cmd_list_element
*c
, const char *value
)
3460 fprintf_filtered (file
, _("\
3461 Printing of C++ virtual function tables is %s.\n"),
3465 /* Controls looking up an object's derived type using what we find in
3468 show_objectprint (struct ui_file
*file
, int from_tty
,
3469 struct cmd_list_element
*c
,
3472 fprintf_filtered (file
, _("\
3473 Printing of object's derived type based on vtable info is %s.\n"),
3478 show_static_field_print (struct ui_file
*file
, int from_tty
,
3479 struct cmd_list_element
*c
,
3482 fprintf_filtered (file
,
3483 _("Printing of C++ static members is %s.\n"),
3489 /* A couple typedefs to make writing the options a bit more
3491 using boolean_option_def
3492 = gdb::option::boolean_option_def
<value_print_options
>;
3493 using uinteger_option_def
3494 = gdb::option::uinteger_option_def
<value_print_options
>;
3495 using zuinteger_unlimited_option_def
3496 = gdb::option::zuinteger_unlimited_option_def
<value_print_options
>;
3498 /* Definitions of options for the "print" and "compile print"
3500 static const gdb::option::option_def value_print_option_defs
[] = {
3502 boolean_option_def
{
3504 [] (value_print_options
*opt
) { return &opt
->addressprint
; },
3505 show_addressprint
, /* show_cmd_cb */
3506 N_("Set printing of addresses."),
3507 N_("Show printing of addresses."),
3508 NULL
, /* help_doc */
3511 boolean_option_def
{
3513 [] (value_print_options
*opt
) { return &opt
->prettyformat_arrays
; },
3514 show_prettyformat_arrays
, /* show_cmd_cb */
3515 N_("Set pretty formatting of arrays."),
3516 N_("Show pretty formatting of arrays."),
3517 NULL
, /* help_doc */
3520 boolean_option_def
{
3522 [] (value_print_options
*opt
) { return &opt
->print_array_indexes
; },
3523 show_print_array_indexes
, /* show_cmd_cb */
3524 N_("Set printing of array indexes."),
3525 N_("Show printing of array indexes."),
3526 NULL
, /* help_doc */
3529 uinteger_option_def
{
3531 [] (value_print_options
*opt
) { return &opt
->print_max
; },
3532 show_print_max
, /* show_cmd_cb */
3533 N_("Set limit on string chars or array elements to print."),
3534 N_("Show limit on string chars or array elements to print."),
3535 N_("\"unlimited\" causes there to be no limit."),
3538 zuinteger_unlimited_option_def
{
3540 [] (value_print_options
*opt
) { return &opt
->max_depth
; },
3541 show_print_max_depth
, /* show_cmd_cb */
3542 N_("Set maximum print depth for nested structures, unions and arrays."),
3543 N_("Show maximum print depth for nested structures, unions, and arrays."),
3544 N_("When structures, unions, or arrays are nested beyond this depth then they\n\
3545 will be replaced with either '{...}' or '(...)' depending on the language.\n\
3546 Use \"unlimited\" to print the complete structure.")
3549 boolean_option_def
{
3551 [] (value_print_options
*opt
) { return &opt
->stop_print_at_null
; },
3552 show_stop_print_at_null
, /* show_cmd_cb */
3553 N_("Set printing of char arrays to stop at first null char."),
3554 N_("Show printing of char arrays to stop at first null char."),
3555 NULL
, /* help_doc */
3558 boolean_option_def
{
3560 [] (value_print_options
*opt
) { return &opt
->objectprint
; },
3561 show_objectprint
, /* show_cmd_cb */
3562 _("Set printing of C++ virtual function tables."),
3563 _("Show printing of C++ virtual function tables."),
3564 NULL
, /* help_doc */
3567 boolean_option_def
{
3569 [] (value_print_options
*opt
) { return &opt
->prettyformat_structs
; },
3570 show_prettyformat_structs
, /* show_cmd_cb */
3571 N_("Set pretty formatting of structures."),
3572 N_("Show pretty formatting of structures."),
3573 NULL
, /* help_doc */
3576 boolean_option_def
{
3578 [] (value_print_options
*opt
) { return &opt
->raw
; },
3579 NULL
, /* show_cmd_cb */
3580 N_("Set whether to print values in raw form."),
3581 N_("Show whether to print values in raw form."),
3582 N_("If set, values are printed in raw form, bypassing any\n\
3583 pretty-printers for that value.")
3586 uinteger_option_def
{
3588 [] (value_print_options
*opt
) { return &opt
->repeat_count_threshold
; },
3589 show_repeat_count_threshold
, /* show_cmd_cb */
3590 N_("Set threshold for repeated print elements."),
3591 N_("Show threshold for repeated print elements."),
3592 N_("\"unlimited\" causes all elements to be individually printed."),
3595 boolean_option_def
{
3597 [] (value_print_options
*opt
) { return &opt
->static_field_print
; },
3598 show_static_field_print
, /* show_cmd_cb */
3599 N_("Set printing of C++ static members."),
3600 N_("Show printing of C++ static members."),
3601 NULL
, /* help_doc */
3604 boolean_option_def
{
3606 [] (value_print_options
*opt
) { return &opt
->symbol_print
; },
3607 show_symbol_print
, /* show_cmd_cb */
3608 N_("Set printing of symbol names when printing pointers."),
3609 N_("Show printing of symbol names when printing pointers."),
3610 NULL
, /* help_doc */
3613 boolean_option_def
{
3615 [] (value_print_options
*opt
) { return &opt
->unionprint
; },
3616 show_unionprint
, /* show_cmd_cb */
3617 N_("Set printing of unions interior to structures."),
3618 N_("Show printing of unions interior to structures."),
3619 NULL
, /* help_doc */
3622 boolean_option_def
{
3624 [] (value_print_options
*opt
) { return &opt
->vtblprint
; },
3625 show_vtblprint
, /* show_cmd_cb */
3626 N_("Set printing of C++ virtual function tables."),
3627 N_("Show printing of C++ virtual function tables."),
3628 NULL
, /* help_doc */
3632 /* See valprint.h. */
3634 gdb::option::option_def_group
3635 make_value_print_options_def_group (value_print_options
*opts
)
3637 return {{value_print_option_defs
}, opts
};
3640 void _initialize_valprint ();
3642 _initialize_valprint ()
3644 cmd_list_element
*cmd
;
3646 add_prefix_cmd ("print", no_class
, set_print
,
3647 _("Generic command for setting how things print."),
3648 &setprintlist
, "set print ", 0, &setlist
);
3649 add_alias_cmd ("p", "print", no_class
, 1, &setlist
);
3650 /* Prefer set print to set prompt. */
3651 add_alias_cmd ("pr", "print", no_class
, 1, &setlist
);
3653 add_prefix_cmd ("print", no_class
, show_print
,
3654 _("Generic command for showing print settings."),
3655 &showprintlist
, "show print ", 0, &showlist
);
3656 add_alias_cmd ("p", "print", no_class
, 1, &showlist
);
3657 add_alias_cmd ("pr", "print", no_class
, 1, &showlist
);
3659 cmd
= add_prefix_cmd ("raw", no_class
, set_print_raw
,
3661 Generic command for setting what things to print in \"raw\" mode."),
3662 &setprintrawlist
, "set print raw ", 0,
3664 deprecate_cmd (cmd
, nullptr);
3666 cmd
= add_prefix_cmd ("raw", no_class
, show_print_raw
,
3667 _("Generic command for showing \"print raw\" settings."),
3668 &showprintrawlist
, "show print raw ", 0,
3670 deprecate_cmd (cmd
, nullptr);
3672 gdb::option::add_setshow_cmds_for_options
3673 (class_support
, &user_print_options
, value_print_option_defs
,
3674 &setprintlist
, &showprintlist
);
3676 add_setshow_zuinteger_cmd ("input-radix", class_support
, &input_radix_1
,
3678 Set default input radix for entering numbers."), _("\
3679 Show default input radix for entering numbers."), NULL
,
3682 &setlist
, &showlist
);
3684 add_setshow_zuinteger_cmd ("output-radix", class_support
, &output_radix_1
,
3686 Set default output radix for printing of values."), _("\
3687 Show default output radix for printing of values."), NULL
,
3690 &setlist
, &showlist
);
3692 /* The "set radix" and "show radix" commands are special in that
3693 they are like normal set and show commands but allow two normally
3694 independent variables to be either set or shown with a single
3695 command. So the usual deprecated_add_set_cmd() and [deleted]
3696 add_show_from_set() commands aren't really appropriate. */
3697 /* FIXME: i18n: With the new add_setshow_integer command, that is no
3698 longer true - show can display anything. */
3699 add_cmd ("radix", class_support
, set_radix
, _("\
3700 Set default input and output number radices.\n\
3701 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
3702 Without an argument, sets both radices back to the default value of 10."),
3704 add_cmd ("radix", class_support
, show_radix
, _("\
3705 Show the default input and output number radices.\n\
3706 Use 'show input-radix' or 'show output-radix' to independently show each."),