1 /* Print values for GNU debugger GDB.
3 Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
5 2008 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "gdb_string.h"
29 #include "expression.h"
33 #include "breakpoint.h"
37 #include "symfile.h" /* for overlay functions */
38 #include "objfiles.h" /* ditto */
39 #include "completer.h" /* for completion functions */
41 #include "gdb_assert.h"
47 #include "tui/tui.h" /* For tui_active et.al. */
50 #if defined(__MINGW32__)
51 # define USE_PRINTF_I64 1
52 # define PRINTF_HAS_LONG_LONG
54 # define USE_PRINTF_I64 0
57 extern int asm_demangle
; /* Whether to demangle syms in asm printouts */
58 extern int addressprint
; /* Whether to print hex addresses in HLL " */
67 /* Last specified output format. */
69 static char last_format
= 'x';
71 /* Last specified examination size. 'b', 'h', 'w' or `q'. */
73 static char last_size
= 'w';
75 /* Default address to examine next. */
77 static CORE_ADDR next_address
;
79 /* Number of delay instructions following current disassembled insn. */
81 static int branch_delay_insns
;
83 /* Last address examined. */
85 static CORE_ADDR last_examine_address
;
87 /* Contents of last address examined.
88 This is not valid past the end of the `x' command! */
90 static struct value
*last_examine_value
;
92 /* Largest offset between a symbolic value and an address, that will be
93 printed as `0x1234 <symbol+offset>'. */
95 static unsigned int max_symbolic_offset
= UINT_MAX
;
97 show_max_symbolic_offset (struct ui_file
*file
, int from_tty
,
98 struct cmd_list_element
*c
, const char *value
)
100 fprintf_filtered (file
, _("\
101 The largest offset that will be printed in <symbol+1234> form is %s.\n"),
105 /* Append the source filename and linenumber of the symbol when
106 printing a symbolic value as `<symbol at filename:linenum>' if set. */
107 static int print_symbol_filename
= 0;
109 show_print_symbol_filename (struct ui_file
*file
, int from_tty
,
110 struct cmd_list_element
*c
, const char *value
)
112 fprintf_filtered (file
, _("\
113 Printing of source filename and line number with <symbol> is %s.\n"),
117 /* Number of auto-display expression currently being displayed.
118 So that we can disable it if we get an error or a signal within it.
119 -1 when not doing one. */
121 int current_display_number
;
123 /* Flag to low-level print routines that this value is being printed
124 in an epoch window. We'd like to pass this as a parameter, but
125 every routine would need to take it. Perhaps we can encapsulate
126 this in the I/O stream once we have GNU stdio. */
132 /* Chain link to next auto-display item. */
133 struct display
*next
;
134 /* Expression to be evaluated and displayed. */
135 struct expression
*exp
;
136 /* Item number of this auto-display item. */
138 /* Display format specified. */
139 struct format_data format
;
140 /* Innermost block required by this expression when evaluated */
142 /* Status of this display (enabled or disabled) */
146 /* Chain of expressions whose values should be displayed
147 automatically each time the program stops. */
149 static struct display
*display_chain
;
151 static int display_number
;
153 /* Prototypes for exported functions. */
155 void output_command (char *, int);
157 void _initialize_printcmd (void);
159 /* Prototypes for local functions. */
161 static void do_one_display (struct display
*);
164 /* Decode a format specification. *STRING_PTR should point to it.
165 OFORMAT and OSIZE are used as defaults for the format and size
166 if none are given in the format specification.
167 If OSIZE is zero, then the size field of the returned value
168 should be set only if a size is explicitly specified by the
170 The structure returned describes all the data
171 found in the specification. In addition, *STRING_PTR is advanced
172 past the specification and past all whitespace following it. */
174 static struct format_data
175 decode_format (char **string_ptr
, int oformat
, int osize
)
177 struct format_data val
;
178 char *p
= *string_ptr
;
184 if (*p
>= '0' && *p
<= '9')
185 val
.count
= atoi (p
);
186 while (*p
>= '0' && *p
<= '9')
189 /* Now process size or format letters that follow. */
193 if (*p
== 'b' || *p
== 'h' || *p
== 'w' || *p
== 'g')
195 else if (*p
>= 'a' && *p
<= 'z')
201 while (*p
== ' ' || *p
== '\t')
205 /* Set defaults for format and size if not specified. */
206 if (val
.format
== '?')
210 /* Neither has been specified. */
211 val
.format
= oformat
;
215 /* If a size is specified, any format makes a reasonable
216 default except 'i'. */
217 val
.format
= oformat
== 'i' ? 'x' : oformat
;
219 else if (val
.size
== '?')
224 /* Pick the appropriate size for an address. */
225 if (gdbarch_ptr_bit (current_gdbarch
) == 64)
226 val
.size
= osize
? 'g' : osize
;
227 else if (gdbarch_ptr_bit (current_gdbarch
) == 32)
228 val
.size
= osize
? 'w' : osize
;
229 else if (gdbarch_ptr_bit (current_gdbarch
) == 16)
230 val
.size
= osize
? 'h' : osize
;
232 /* Bad value for gdbarch_ptr_bit. */
233 internal_error (__FILE__
, __LINE__
,
234 _("failed internal consistency check"));
237 /* Floating point has to be word or giantword. */
238 if (osize
== 'w' || osize
== 'g')
241 /* Default it to giantword if the last used size is not
243 val
.size
= osize
? 'g' : osize
;
246 /* Characters default to one byte. */
247 val
.size
= osize
? 'b' : osize
;
250 /* The default is the size most recently specified. */
257 /* Print value VAL on stream according to FORMAT, a letter or 0.
258 Do not end with a newline.
259 0 means print VAL according to its own type.
260 SIZE is the letter for the size of datum being printed.
261 This is used to pad hex numbers so they line up. SIZE is 0
262 for print / output and set for examine. */
265 print_formatted (struct value
*val
, int format
, int size
,
266 struct ui_file
*stream
)
268 struct type
*type
= check_typedef (value_type (val
));
269 int len
= TYPE_LENGTH (type
);
271 if (VALUE_LVAL (val
) == lval_memory
)
272 next_address
= VALUE_ADDRESS (val
) + len
;
279 /* FIXME: Need to handle wchar_t's here... */
280 next_address
= VALUE_ADDRESS (val
)
281 + val_print_string (VALUE_ADDRESS (val
), -1, 1, stream
);
285 /* We often wrap here if there are long symbolic names. */
287 next_address
= (VALUE_ADDRESS (val
)
288 + gdb_print_insn (VALUE_ADDRESS (val
), stream
,
289 &branch_delay_insns
));
294 if (format
== 0 || format
== 's'
295 || TYPE_CODE (type
) == TYPE_CODE_REF
296 || TYPE_CODE (type
) == TYPE_CODE_ARRAY
297 || TYPE_CODE (type
) == TYPE_CODE_STRING
298 || TYPE_CODE (type
) == TYPE_CODE_STRUCT
299 || TYPE_CODE (type
) == TYPE_CODE_UNION
300 || TYPE_CODE (type
) == TYPE_CODE_NAMESPACE
)
301 /* If format is 0, use the 'natural' format for that type of
302 value. If the type is non-scalar, we have to use language
303 rules to print it as a series of scalars. */
304 value_print (val
, stream
, format
, Val_pretty_default
);
306 /* User specified format, so don't look to the the type to
307 tell us what to do. */
308 print_scalar_formatted (value_contents (val
), type
,
309 format
, size
, stream
);
312 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
313 according to letters FORMAT and SIZE on STREAM.
314 FORMAT may not be zero. Formats s and i are not supported at this level.
316 This is how the elements of an array or structure are printed
320 print_scalar_formatted (const void *valaddr
, struct type
*type
,
321 int format
, int size
, struct ui_file
*stream
)
323 LONGEST val_long
= 0;
324 unsigned int len
= TYPE_LENGTH (type
);
326 /* If we get here with a string format, try again without it. Go
327 all the way back to the language printers, which may call us
331 val_print (type
, valaddr
, 0, 0, stream
, 0, 0, 0, Val_pretty_default
);
335 if (len
> sizeof(LONGEST
) &&
336 (TYPE_CODE (type
) == TYPE_CODE_INT
337 || TYPE_CODE (type
) == TYPE_CODE_ENUM
))
342 print_octal_chars (stream
, valaddr
, len
);
346 print_decimal_chars (stream
, valaddr
, len
);
349 print_binary_chars (stream
, valaddr
, len
);
352 print_hex_chars (stream
, valaddr
, len
);
355 print_char_chars (stream
, valaddr
, len
);
363 val_long
= unpack_long (type
, valaddr
);
365 /* If the value is a pointer, and pointers and addresses are not the
366 same, then at this point, the value's length (in target bytes) is
367 gdbarch_addr_bit/TARGET_CHAR_BIT, not TYPE_LENGTH (type). */
368 if (TYPE_CODE (type
) == TYPE_CODE_PTR
)
369 len
= gdbarch_addr_bit (current_gdbarch
) / TARGET_CHAR_BIT
;
371 /* If we are printing it as unsigned, truncate it in case it is actually
372 a negative signed value (e.g. "print/u (short)-1" should print 65535
373 (if shorts are 16 bits) instead of 4294967295). */
376 if (len
< sizeof (LONGEST
))
377 val_long
&= ((LONGEST
) 1 << HOST_CHAR_BIT
* len
) - 1;
385 /* No size specified, like in print. Print varying # of digits. */
386 print_longest (stream
, 'x', 1, val_long
);
395 print_longest (stream
, size
, 1, val_long
);
398 error (_("Undefined output size \"%c\"."), size
);
403 print_longest (stream
, 'd', 1, val_long
);
407 print_longest (stream
, 'u', 0, val_long
);
412 print_longest (stream
, 'o', 1, val_long
);
414 fprintf_filtered (stream
, "0");
419 CORE_ADDR addr
= unpack_pointer (type
, valaddr
);
420 print_address (addr
, stream
);
425 if (TYPE_UNSIGNED (type
))
429 utype
= builtin_type (current_gdbarch
)->builtin_true_unsigned_char
;
430 value_print (value_from_longest (utype
, val_long
),
431 stream
, 0, Val_pretty_default
);
434 value_print (value_from_longest (builtin_type_true_char
, val_long
),
435 stream
, 0, Val_pretty_default
);
439 if (len
== TYPE_LENGTH (builtin_type_float
))
440 type
= builtin_type_float
;
441 else if (len
== TYPE_LENGTH (builtin_type_double
))
442 type
= builtin_type_double
;
443 else if (len
== TYPE_LENGTH (builtin_type_long_double
))
444 type
= builtin_type_long_double
;
445 print_floating (valaddr
, type
, stream
);
449 internal_error (__FILE__
, __LINE__
,
450 _("failed internal consistency check"));
453 /* Binary; 't' stands for "two". */
455 char bits
[8 * (sizeof val_long
) + 1];
456 char buf
[8 * (sizeof val_long
) + 32];
461 width
= 8 * (sizeof val_long
);
478 error (_("Undefined output size \"%c\"."), size
);
484 bits
[width
] = (val_long
& 1) ? '1' : '0';
489 while (*cp
&& *cp
== '0')
495 fputs_filtered (buf
, stream
);
500 error (_("Undefined output format \"%c\"."), format
);
504 /* Specify default address for `x' command.
505 The `info lines' command uses this. */
508 set_next_address (CORE_ADDR addr
)
512 /* Make address available to the user as $_. */
513 set_internalvar (lookup_internalvar ("_"),
514 value_from_pointer (lookup_pointer_type (builtin_type_void
),
518 /* Optionally print address ADDR symbolically as <SYMBOL+OFFSET> on STREAM,
519 after LEADIN. Print nothing if no symbolic name is found nearby.
520 Optionally also print source file and line number, if available.
521 DO_DEMANGLE controls whether to print a symbol in its native "raw" form,
522 or to interpret it as a possible C++ name and convert it back to source
523 form. However note that DO_DEMANGLE can be overridden by the specific
524 settings of the demangle and asm_demangle variables. */
527 print_address_symbolic (CORE_ADDR addr
, struct ui_file
*stream
,
528 int do_demangle
, char *leadin
)
531 char *filename
= NULL
;
536 /* Throw away both name and filename. */
537 struct cleanup
*cleanup_chain
= make_cleanup (free_current_contents
, &name
);
538 make_cleanup (free_current_contents
, &filename
);
540 if (build_address_symbolic (addr
, do_demangle
, &name
, &offset
,
541 &filename
, &line
, &unmapped
))
543 do_cleanups (cleanup_chain
);
547 fputs_filtered (leadin
, stream
);
549 fputs_filtered ("<*", stream
);
551 fputs_filtered ("<", stream
);
552 fputs_filtered (name
, stream
);
554 fprintf_filtered (stream
, "+%u", (unsigned int) offset
);
556 /* Append source filename and line number if desired. Give specific
557 line # of this addr, if we have it; else line # of the nearest symbol. */
558 if (print_symbol_filename
&& filename
!= NULL
)
561 fprintf_filtered (stream
, " at %s:%d", filename
, line
);
563 fprintf_filtered (stream
, " in %s", filename
);
566 fputs_filtered ("*>", stream
);
568 fputs_filtered (">", stream
);
570 do_cleanups (cleanup_chain
);
573 /* Given an address ADDR return all the elements needed to print the
574 address in a symbolic form. NAME can be mangled or not depending
575 on DO_DEMANGLE (and also on the asm_demangle global variable,
576 manipulated via ''set print asm-demangle''). Return 0 in case of
577 success, when all the info in the OUT paramters is valid. Return 1
580 build_address_symbolic (CORE_ADDR addr
, /* IN */
581 int do_demangle
, /* IN */
582 char **name
, /* OUT */
583 int *offset
, /* OUT */
584 char **filename
, /* OUT */
586 int *unmapped
) /* OUT */
588 struct minimal_symbol
*msymbol
;
589 struct symbol
*symbol
;
590 CORE_ADDR name_location
= 0;
591 asection
*section
= 0;
592 char *name_temp
= "";
594 /* Let's say it is unmapped. */
597 /* Determine if the address is in an overlay, and whether it is
599 if (overlay_debugging
)
601 section
= find_pc_overlay (addr
);
602 if (pc_in_unmapped_range (addr
, section
))
605 addr
= overlay_mapped_address (addr
, section
);
609 /* First try to find the address in the symbol table, then
610 in the minsyms. Take the closest one. */
612 /* This is defective in the sense that it only finds text symbols. So
613 really this is kind of pointless--we should make sure that the
614 minimal symbols have everything we need (by changing that we could
615 save some memory, but for many debug format--ELF/DWARF or
616 anything/stabs--it would be inconvenient to eliminate those minimal
618 msymbol
= lookup_minimal_symbol_by_pc_section (addr
, section
);
619 symbol
= find_pc_sect_function (addr
, section
);
623 name_location
= BLOCK_START (SYMBOL_BLOCK_VALUE (symbol
));
624 if (do_demangle
|| asm_demangle
)
625 name_temp
= SYMBOL_PRINT_NAME (symbol
);
627 name_temp
= DEPRECATED_SYMBOL_NAME (symbol
);
632 if (SYMBOL_VALUE_ADDRESS (msymbol
) > name_location
|| symbol
== NULL
)
634 /* The msymbol is closer to the address than the symbol;
635 use the msymbol instead. */
637 name_location
= SYMBOL_VALUE_ADDRESS (msymbol
);
638 if (do_demangle
|| asm_demangle
)
639 name_temp
= SYMBOL_PRINT_NAME (msymbol
);
641 name_temp
= DEPRECATED_SYMBOL_NAME (msymbol
);
644 if (symbol
== NULL
&& msymbol
== NULL
)
647 /* If the nearest symbol is too far away, don't print anything symbolic. */
649 /* For when CORE_ADDR is larger than unsigned int, we do math in
650 CORE_ADDR. But when we detect unsigned wraparound in the
651 CORE_ADDR math, we ignore this test and print the offset,
652 because addr+max_symbolic_offset has wrapped through the end
653 of the address space back to the beginning, giving bogus comparison. */
654 if (addr
> name_location
+ max_symbolic_offset
655 && name_location
+ max_symbolic_offset
> name_location
)
658 *offset
= addr
- name_location
;
660 *name
= xstrdup (name_temp
);
662 if (print_symbol_filename
)
664 struct symtab_and_line sal
;
666 sal
= find_pc_sect_line (addr
, section
, 0);
670 *filename
= xstrdup (sal
.symtab
->filename
);
677 /* Print address ADDR on STREAM. USE_LOCAL means the same thing as for
680 deprecated_print_address_numeric (CORE_ADDR addr
, int use_local
,
681 struct ui_file
*stream
)
684 fputs_filtered (paddress (addr
), stream
);
687 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
689 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
690 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
691 print_longest (stream
, 'x', 0, (ULONGEST
) addr
);
695 /* Print address ADDR symbolically on STREAM.
696 First print it as a number. Then perhaps print
697 <SYMBOL + OFFSET> after the number. */
700 print_address (CORE_ADDR addr
, struct ui_file
*stream
)
702 fputs_filtered (paddress (addr
), stream
);
703 print_address_symbolic (addr
, stream
, asm_demangle
, " ");
706 /* Print address ADDR symbolically on STREAM. Parameter DEMANGLE
707 controls whether to print the symbolic name "raw" or demangled.
708 Global setting "addressprint" controls whether to print hex address
712 print_address_demangle (CORE_ADDR addr
, struct ui_file
*stream
,
717 fprintf_filtered (stream
, "0");
719 else if (addressprint
)
721 fputs_filtered (paddress (addr
), stream
);
722 print_address_symbolic (addr
, stream
, do_demangle
, " ");
726 print_address_symbolic (addr
, stream
, do_demangle
, "");
731 /* These are the types that $__ will get after an examine command of one
734 static struct type
*examine_i_type
;
736 static struct type
*examine_b_type
;
737 static struct type
*examine_h_type
;
738 static struct type
*examine_w_type
;
739 static struct type
*examine_g_type
;
741 /* Examine data at address ADDR in format FMT.
742 Fetch it from memory and print on gdb_stdout. */
745 do_examine (struct format_data fmt
, CORE_ADDR addr
)
750 struct type
*val_type
= NULL
;
759 /* String or instruction format implies fetch single bytes
760 regardless of the specified size. */
761 if (format
== 's' || format
== 'i')
765 val_type
= examine_i_type
;
766 else if (size
== 'b')
767 val_type
= examine_b_type
;
768 else if (size
== 'h')
769 val_type
= examine_h_type
;
770 else if (size
== 'w')
771 val_type
= examine_w_type
;
772 else if (size
== 'g')
773 val_type
= examine_g_type
;
780 if (format
== 's' || format
== 'i')
783 /* Print as many objects as specified in COUNT, at most maxelts per line,
784 with the address of the next one at the start of each line. */
789 print_address (next_address
, gdb_stdout
);
790 printf_filtered (":");
795 printf_filtered ("\t");
796 /* Note that print_formatted sets next_address for the next
798 last_examine_address
= next_address
;
800 if (last_examine_value
)
801 value_free (last_examine_value
);
803 /* The value to be displayed is not fetched greedily.
804 Instead, to avoid the possibility of a fetched value not
805 being used, its retrieval is delayed until the print code
806 uses it. When examining an instruction stream, the
807 disassembler will perform its own memory fetch using just
808 the address stored in LAST_EXAMINE_VALUE. FIXME: Should
809 the disassembler be modified so that LAST_EXAMINE_VALUE
810 is left with the byte sequence from the last complete
811 instruction fetched from memory? */
812 last_examine_value
= value_at_lazy (val_type
, next_address
);
814 if (last_examine_value
)
815 release_value (last_examine_value
);
817 print_formatted (last_examine_value
, format
, size
, gdb_stdout
);
819 /* Display any branch delay slots following the final insn. */
820 if (format
== 'i' && count
== 1)
821 count
+= branch_delay_insns
;
823 printf_filtered ("\n");
824 gdb_flush (gdb_stdout
);
829 validate_format (struct format_data fmt
, char *cmdname
)
832 error (_("Size letters are meaningless in \"%s\" command."), cmdname
);
834 error (_("Item count other than 1 is meaningless in \"%s\" command."),
836 if (fmt
.format
== 'i')
837 error (_("Format letter \"%c\" is meaningless in \"%s\" command."),
838 fmt
.format
, cmdname
);
841 /* Evaluate string EXP as an expression in the current language and
842 print the resulting value. EXP may contain a format specifier as the
843 first argument ("/x myvar" for example, to print myvar in hex). */
846 print_command_1 (char *exp
, int inspect
, int voidprint
)
848 struct expression
*expr
;
849 struct cleanup
*old_chain
= 0;
852 struct format_data fmt
;
855 /* Pass inspect flag to the rest of the print routines in a global
857 inspect_it
= inspect
;
859 if (exp
&& *exp
== '/')
862 fmt
= decode_format (&exp
, last_format
, 0);
863 validate_format (fmt
, "print");
864 last_format
= format
= fmt
.format
;
876 expr
= parse_expression (exp
);
877 old_chain
= make_cleanup (free_current_contents
, &expr
);
879 val
= evaluate_expression (expr
);
882 val
= access_value_history (0);
884 if (voidprint
|| (val
&& value_type (val
) &&
885 TYPE_CODE (value_type (val
)) != TYPE_CODE_VOID
))
887 int histindex
= record_latest_value (val
);
890 annotate_value_history_begin (histindex
, value_type (val
));
892 annotate_value_begin (value_type (val
));
895 printf_unfiltered ("\031(gdb-makebuffer \"%s\" %d '(\"",
897 else if (histindex
>= 0)
898 printf_filtered ("$%d = ", histindex
);
901 annotate_value_history_value ();
903 print_formatted (val
, format
, fmt
.size
, gdb_stdout
);
904 printf_filtered ("\n");
907 annotate_value_history_end ();
909 annotate_value_end ();
912 printf_unfiltered ("\") )\030");
916 do_cleanups (old_chain
);
917 inspect_it
= 0; /* Reset print routines to normal. */
921 print_command (char *exp
, int from_tty
)
923 print_command_1 (exp
, 0, 1);
926 /* Same as print, except in epoch, it gets its own window. */
928 inspect_command (char *exp
, int from_tty
)
930 extern int epoch_interface
;
932 print_command_1 (exp
, epoch_interface
, 1);
935 /* Same as print, except it doesn't print void results. */
937 call_command (char *exp
, int from_tty
)
939 print_command_1 (exp
, 0, 0);
943 output_command (char *exp
, int from_tty
)
945 struct expression
*expr
;
946 struct cleanup
*old_chain
;
949 struct format_data fmt
;
953 if (exp
&& *exp
== '/')
956 fmt
= decode_format (&exp
, 0, 0);
957 validate_format (fmt
, "output");
961 expr
= parse_expression (exp
);
962 old_chain
= make_cleanup (free_current_contents
, &expr
);
964 val
= evaluate_expression (expr
);
966 annotate_value_begin (value_type (val
));
968 print_formatted (val
, format
, fmt
.size
, gdb_stdout
);
970 annotate_value_end ();
973 gdb_flush (gdb_stdout
);
975 do_cleanups (old_chain
);
979 set_command (char *exp
, int from_tty
)
981 struct expression
*expr
= parse_expression (exp
);
982 struct cleanup
*old_chain
=
983 make_cleanup (free_current_contents
, &expr
);
984 evaluate_expression (expr
);
985 do_cleanups (old_chain
);
989 sym_info (char *arg
, int from_tty
)
991 struct minimal_symbol
*msymbol
;
992 struct objfile
*objfile
;
993 struct obj_section
*osect
;
995 CORE_ADDR addr
, sect_addr
;
1000 error_no_arg (_("address"));
1002 addr
= parse_and_eval_address (arg
);
1003 ALL_OBJSECTIONS (objfile
, osect
)
1005 /* Only process each object file once, even if there's a separate
1007 if (objfile
->separate_debug_objfile_backlink
)
1010 sect
= osect
->the_bfd_section
;
1011 sect_addr
= overlay_mapped_address (addr
, sect
);
1013 if (osect
->addr
<= sect_addr
&& sect_addr
< osect
->endaddr
&&
1014 (msymbol
= lookup_minimal_symbol_by_pc_section (sect_addr
, sect
)))
1017 offset
= sect_addr
- SYMBOL_VALUE_ADDRESS (msymbol
);
1019 printf_filtered ("%s + %u in ",
1020 SYMBOL_PRINT_NAME (msymbol
), offset
);
1022 printf_filtered ("%s in ",
1023 SYMBOL_PRINT_NAME (msymbol
));
1024 if (pc_in_unmapped_range (addr
, sect
))
1025 printf_filtered (_("load address range of "));
1026 if (section_is_overlay (sect
))
1027 printf_filtered (_("%s overlay "),
1028 section_is_mapped (sect
) ? "mapped" : "unmapped");
1029 printf_filtered (_("section %s"), sect
->name
);
1030 printf_filtered ("\n");
1034 printf_filtered (_("No symbol matches %s.\n"), arg
);
1038 address_info (char *exp
, int from_tty
)
1041 struct minimal_symbol
*msymbol
;
1045 CORE_ADDR load_addr
;
1046 int is_a_field_of_this
; /* C++: lookup_symbol sets this to nonzero
1047 if exp is a field of `this'. */
1050 error (_("Argument required."));
1052 sym
= lookup_symbol (exp
, get_selected_block (0), VAR_DOMAIN
,
1053 &is_a_field_of_this
, (struct symtab
**) NULL
);
1056 if (is_a_field_of_this
)
1058 printf_filtered ("Symbol \"");
1059 fprintf_symbol_filtered (gdb_stdout
, exp
,
1060 current_language
->la_language
, DMGL_ANSI
);
1061 printf_filtered ("\" is a field of the local class variable ");
1062 if (current_language
->la_language
== language_objc
)
1063 printf_filtered ("`self'\n"); /* ObjC equivalent of "this" */
1065 printf_filtered ("`this'\n");
1069 msymbol
= lookup_minimal_symbol (exp
, NULL
, NULL
);
1071 if (msymbol
!= NULL
)
1073 load_addr
= SYMBOL_VALUE_ADDRESS (msymbol
);
1075 printf_filtered ("Symbol \"");
1076 fprintf_symbol_filtered (gdb_stdout
, exp
,
1077 current_language
->la_language
, DMGL_ANSI
);
1078 printf_filtered ("\" is at ");
1079 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1080 printf_filtered (" in a file compiled without debugging");
1081 section
= SYMBOL_BFD_SECTION (msymbol
);
1082 if (section_is_overlay (section
))
1084 load_addr
= overlay_unmapped_address (load_addr
, section
);
1085 printf_filtered (",\n -- loaded at ");
1086 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1087 printf_filtered (" in overlay section %s", section
->name
);
1089 printf_filtered (".\n");
1092 error (_("No symbol \"%s\" in current context."), exp
);
1096 printf_filtered ("Symbol \"");
1097 fprintf_symbol_filtered (gdb_stdout
, DEPRECATED_SYMBOL_NAME (sym
),
1098 current_language
->la_language
, DMGL_ANSI
);
1099 printf_filtered ("\" is ");
1100 val
= SYMBOL_VALUE (sym
);
1101 basereg
= SYMBOL_BASEREG (sym
);
1102 section
= SYMBOL_BFD_SECTION (sym
);
1104 switch (SYMBOL_CLASS (sym
))
1107 case LOC_CONST_BYTES
:
1108 printf_filtered ("constant");
1112 printf_filtered ("a label at address ");
1113 fputs_filtered (paddress (load_addr
= SYMBOL_VALUE_ADDRESS (sym
)),
1115 if (section_is_overlay (section
))
1117 load_addr
= overlay_unmapped_address (load_addr
, section
);
1118 printf_filtered (",\n -- loaded at ");
1119 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1120 printf_filtered (" in overlay section %s", section
->name
);
1125 case LOC_COMPUTED_ARG
:
1126 /* FIXME: cagney/2004-01-26: It should be possible to
1127 unconditionally call the SYMBOL_OPS method when available.
1128 Unfortunately DWARF 2 stores the frame-base (instead of the
1129 function) location in a function's symbol. Oops! For the
1130 moment enable this when/where applicable. */
1131 SYMBOL_OPS (sym
)->describe_location (sym
, gdb_stdout
);
1135 printf_filtered (_("a variable in register %s"),
1136 gdbarch_register_name (current_gdbarch
, val
));
1140 printf_filtered (_("static storage at address "));
1141 fputs_filtered (paddress (load_addr
= SYMBOL_VALUE_ADDRESS (sym
)),
1143 if (section_is_overlay (section
))
1145 load_addr
= overlay_unmapped_address (load_addr
, section
);
1146 printf_filtered (_(",\n -- loaded at "));
1147 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1148 printf_filtered (_(" in overlay section %s"), section
->name
);
1153 printf_filtered (_("external global (indirect addressing), at address *("));
1154 fputs_filtered (paddress (load_addr
= SYMBOL_VALUE_ADDRESS (sym
)),
1156 printf_filtered (")");
1157 if (section_is_overlay (section
))
1159 load_addr
= overlay_unmapped_address (load_addr
, section
);
1160 printf_filtered (_(",\n -- loaded at "));
1161 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1162 printf_filtered (_(" in overlay section %s"), section
->name
);
1167 printf_filtered (_("an argument in register %s"),
1168 gdbarch_register_name (current_gdbarch
, val
));
1171 case LOC_REGPARM_ADDR
:
1172 printf_filtered (_("address of an argument in register %s"),
1173 gdbarch_register_name (current_gdbarch
, val
));
1177 printf_filtered (_("an argument at offset %ld"), val
);
1181 printf_filtered (_("an argument at frame offset %ld"), val
);
1185 printf_filtered (_("a local variable at frame offset %ld"), val
);
1189 printf_filtered (_("a reference argument at offset %ld"), val
);
1193 printf_filtered (_("a variable at offset %ld from register %s"),
1194 val
, gdbarch_register_name (current_gdbarch
, basereg
));
1197 case LOC_BASEREG_ARG
:
1198 printf_filtered (_("an argument at offset %ld from register %s"),
1199 val
, gdbarch_register_name (current_gdbarch
, basereg
));
1203 printf_filtered (_("a typedef"));
1207 printf_filtered (_("a function at address "));
1208 load_addr
= BLOCK_START (SYMBOL_BLOCK_VALUE (sym
));
1209 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1210 if (section_is_overlay (section
))
1212 load_addr
= overlay_unmapped_address (load_addr
, section
);
1213 printf_filtered (_(",\n -- loaded at "));
1214 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1215 printf_filtered (_(" in overlay section %s"), section
->name
);
1219 case LOC_UNRESOLVED
:
1221 struct minimal_symbol
*msym
;
1223 msym
= lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym
), NULL
, NULL
);
1225 printf_filtered ("unresolved");
1228 section
= SYMBOL_BFD_SECTION (msym
);
1229 printf_filtered (_("static storage at address "));
1230 load_addr
= SYMBOL_VALUE_ADDRESS (msym
);
1231 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1232 if (section_is_overlay (section
))
1234 load_addr
= overlay_unmapped_address (load_addr
, section
);
1235 printf_filtered (_(",\n -- loaded at "));
1236 fputs_filtered (paddress (load_addr
), gdb_stdout
);
1237 printf_filtered (_(" in overlay section %s"), section
->name
);
1243 case LOC_HP_THREAD_LOCAL_STATIC
:
1244 printf_filtered (_("\
1245 a thread-local variable at offset %ld from the thread base register %s"),
1246 val
, gdbarch_register_name (current_gdbarch
, basereg
));
1249 case LOC_OPTIMIZED_OUT
:
1250 printf_filtered (_("optimized out"));
1254 printf_filtered (_("of unknown (botched) type"));
1257 printf_filtered (".\n");
1262 x_command (char *exp
, int from_tty
)
1264 struct expression
*expr
;
1265 struct format_data fmt
;
1266 struct cleanup
*old_chain
;
1269 fmt
.format
= last_format
;
1270 fmt
.size
= last_size
;
1273 if (exp
&& *exp
== '/')
1276 fmt
= decode_format (&exp
, last_format
, last_size
);
1279 /* If we have an expression, evaluate it and use it as the address. */
1281 if (exp
!= 0 && *exp
!= 0)
1283 expr
= parse_expression (exp
);
1284 /* Cause expression not to be there any more if this command is
1285 repeated with Newline. But don't clobber a user-defined
1286 command's definition. */
1289 old_chain
= make_cleanup (free_current_contents
, &expr
);
1290 val
= evaluate_expression (expr
);
1291 if (TYPE_CODE (value_type (val
)) == TYPE_CODE_REF
)
1292 val
= value_ind (val
);
1293 /* In rvalue contexts, such as this, functions are coerced into
1294 pointers to functions. This makes "x/i main" work. */
1295 if (/* last_format == 'i' && */
1296 TYPE_CODE (value_type (val
)) == TYPE_CODE_FUNC
1297 && VALUE_LVAL (val
) == lval_memory
)
1298 next_address
= VALUE_ADDRESS (val
);
1300 next_address
= value_as_address (val
);
1301 do_cleanups (old_chain
);
1304 do_examine (fmt
, next_address
);
1306 /* If the examine succeeds, we remember its size and format for next
1308 last_size
= fmt
.size
;
1309 last_format
= fmt
.format
;
1311 /* Set a couple of internal variables if appropriate. */
1312 if (last_examine_value
)
1314 /* Make last address examined available to the user as $_. Use
1315 the correct pointer type. */
1316 struct type
*pointer_type
1317 = lookup_pointer_type (value_type (last_examine_value
));
1318 set_internalvar (lookup_internalvar ("_"),
1319 value_from_pointer (pointer_type
,
1320 last_examine_address
));
1322 /* Make contents of last address examined available to the user
1323 as $__. If the last value has not been fetched from memory
1324 then don't fetch it now; instead mark it by voiding the $__
1326 if (value_lazy (last_examine_value
))
1327 set_internalvar (lookup_internalvar ("__"),
1328 allocate_value (builtin_type_void
));
1330 set_internalvar (lookup_internalvar ("__"), last_examine_value
);
1335 /* Add an expression to the auto-display chain.
1336 Specify the expression. */
1339 display_command (char *exp
, int from_tty
)
1341 struct format_data fmt
;
1342 struct expression
*expr
;
1343 struct display
*new;
1347 /* NOTE: cagney/2003-02-13 The `tui_active' was previously
1349 if (tui_active
&& exp
!= NULL
&& *exp
== '$')
1350 display_it
= (tui_set_layout_for_display_command (exp
) == TUI_FAILURE
);
1364 fmt
= decode_format (&exp
, 0, 0);
1365 if (fmt
.size
&& fmt
.format
== 0)
1367 if (fmt
.format
== 'i' || fmt
.format
== 's')
1377 innermost_block
= 0;
1378 expr
= parse_expression (exp
);
1380 new = (struct display
*) xmalloc (sizeof (struct display
));
1383 new->block
= innermost_block
;
1384 new->next
= display_chain
;
1385 new->number
= ++display_number
;
1388 display_chain
= new;
1390 if (from_tty
&& target_has_execution
)
1391 do_one_display (new);
1398 free_display (struct display
*d
)
1404 /* Clear out the display_chain. Done when new symtabs are loaded,
1405 since this invalidates the types stored in many expressions. */
1408 clear_displays (void)
1412 while ((d
= display_chain
) != NULL
)
1415 display_chain
= d
->next
;
1420 /* Delete the auto-display number NUM. */
1423 delete_display (int num
)
1425 struct display
*d1
, *d
;
1428 error (_("No display number %d."), num
);
1430 if (display_chain
->number
== num
)
1433 display_chain
= d1
->next
;
1437 for (d
= display_chain
;; d
= d
->next
)
1440 error (_("No display number %d."), num
);
1441 if (d
->next
->number
== num
)
1451 /* Delete some values from the auto-display chain.
1452 Specify the element numbers. */
1455 undisplay_command (char *args
, int from_tty
)
1463 if (query ("Delete all auto-display expressions? "))
1472 while (*p1
>= '0' && *p1
<= '9')
1474 if (*p1
&& *p1
!= ' ' && *p1
!= '\t')
1475 error (_("Arguments must be display numbers."));
1479 delete_display (num
);
1482 while (*p
== ' ' || *p
== '\t')
1488 /* Display a single auto-display.
1489 Do nothing if the display cannot be printed in the current context,
1490 or if the display is disabled. */
1493 do_one_display (struct display
*d
)
1495 int within_current_scope
;
1497 if (d
->enabled_p
== 0)
1501 within_current_scope
= contained_in (get_selected_block (0), d
->block
);
1503 within_current_scope
= 1;
1504 if (!within_current_scope
)
1507 current_display_number
= d
->number
;
1509 annotate_display_begin ();
1510 printf_filtered ("%d", d
->number
);
1511 annotate_display_number_end ();
1512 printf_filtered (": ");
1518 annotate_display_format ();
1520 printf_filtered ("x/");
1521 if (d
->format
.count
!= 1)
1522 printf_filtered ("%d", d
->format
.count
);
1523 printf_filtered ("%c", d
->format
.format
);
1524 if (d
->format
.format
!= 'i' && d
->format
.format
!= 's')
1525 printf_filtered ("%c", d
->format
.size
);
1526 printf_filtered (" ");
1528 annotate_display_expression ();
1530 print_expression (d
->exp
, gdb_stdout
);
1531 annotate_display_expression_end ();
1533 if (d
->format
.count
!= 1 || d
->format
.format
== 'i')
1534 printf_filtered ("\n");
1536 printf_filtered (" ");
1538 val
= evaluate_expression (d
->exp
);
1539 addr
= value_as_address (val
);
1540 if (d
->format
.format
== 'i')
1541 addr
= gdbarch_addr_bits_remove (current_gdbarch
, addr
);
1543 annotate_display_value ();
1545 do_examine (d
->format
, addr
);
1549 annotate_display_format ();
1551 if (d
->format
.format
)
1552 printf_filtered ("/%c ", d
->format
.format
);
1554 annotate_display_expression ();
1556 print_expression (d
->exp
, gdb_stdout
);
1557 annotate_display_expression_end ();
1559 printf_filtered (" = ");
1561 annotate_display_expression ();
1563 print_formatted (evaluate_expression (d
->exp
),
1564 d
->format
.format
, d
->format
.size
, gdb_stdout
);
1565 printf_filtered ("\n");
1568 annotate_display_end ();
1570 gdb_flush (gdb_stdout
);
1571 current_display_number
= -1;
1574 /* Display all of the values on the auto-display chain which can be
1575 evaluated in the current scope. */
1582 for (d
= display_chain
; d
; d
= d
->next
)
1586 /* Delete the auto-display which we were in the process of displaying.
1587 This is done when there is an error or a signal. */
1590 disable_display (int num
)
1594 for (d
= display_chain
; d
; d
= d
->next
)
1595 if (d
->number
== num
)
1600 printf_unfiltered (_("No display number %d.\n"), num
);
1604 disable_current_display (void)
1606 if (current_display_number
>= 0)
1608 disable_display (current_display_number
);
1609 fprintf_unfiltered (gdb_stderr
, _("\
1610 Disabling display %d to avoid infinite recursion.\n"),
1611 current_display_number
);
1613 current_display_number
= -1;
1617 display_info (char *ignore
, int from_tty
)
1622 printf_unfiltered (_("There are no auto-display expressions now.\n"));
1624 printf_filtered (_("Auto-display expressions now in effect:\n\
1625 Num Enb Expression\n"));
1627 for (d
= display_chain
; d
; d
= d
->next
)
1629 printf_filtered ("%d: %c ", d
->number
, "ny"[(int) d
->enabled_p
]);
1631 printf_filtered ("/%d%c%c ", d
->format
.count
, d
->format
.size
,
1633 else if (d
->format
.format
)
1634 printf_filtered ("/%c ", d
->format
.format
);
1635 print_expression (d
->exp
, gdb_stdout
);
1636 if (d
->block
&& !contained_in (get_selected_block (0), d
->block
))
1637 printf_filtered (_(" (cannot be evaluated in the current context)"));
1638 printf_filtered ("\n");
1639 gdb_flush (gdb_stdout
);
1644 enable_display (char *args
, int from_tty
)
1653 for (d
= display_chain
; d
; d
= d
->next
)
1660 while (*p1
>= '0' && *p1
<= '9')
1662 if (*p1
&& *p1
!= ' ' && *p1
!= '\t')
1663 error (_("Arguments must be display numbers."));
1667 for (d
= display_chain
; d
; d
= d
->next
)
1668 if (d
->number
== num
)
1673 printf_unfiltered (_("No display number %d.\n"), num
);
1676 while (*p
== ' ' || *p
== '\t')
1682 disable_display_command (char *args
, int from_tty
)
1690 for (d
= display_chain
; d
; d
= d
->next
)
1697 while (*p1
>= '0' && *p1
<= '9')
1699 if (*p1
&& *p1
!= ' ' && *p1
!= '\t')
1700 error (_("Arguments must be display numbers."));
1702 disable_display (atoi (p
));
1705 while (*p
== ' ' || *p
== '\t')
1711 /* Print the value in stack frame FRAME of a variable specified by a
1715 print_variable_value (struct symbol
*var
, struct frame_info
*frame
,
1716 struct ui_file
*stream
)
1718 struct value
*val
= read_var_value (var
, frame
);
1720 value_print (val
, stream
, 0, Val_pretty_default
);
1724 printf_command (char *arg
, int from_tty
)
1728 char *string
= NULL
;
1729 struct value
**val_args
;
1731 char *current_substring
;
1733 int allocated_args
= 20;
1734 struct cleanup
*old_cleanups
;
1736 val_args
= xmalloc (allocated_args
* sizeof (struct value
*));
1737 old_cleanups
= make_cleanup (free_current_contents
, &val_args
);
1740 error_no_arg (_("format-control string and values to print"));
1742 /* Skip white space before format string */
1743 while (*s
== ' ' || *s
== '\t')
1746 /* A format string should follow, enveloped in double quotes. */
1748 error (_("Bad format string, missing '\"'."));
1750 /* Parse the format-control string and copy it into the string STRING,
1751 processing some kinds of escape sequence. */
1753 f
= string
= (char *) alloca (strlen (s
) + 1);
1761 error (_("Bad format string, non-terminated '\"'."));
1794 /* ??? TODO: handle other escape sequences */
1795 error (_("Unrecognized escape character \\%c in format string."),
1805 /* Skip over " and following space and comma. */
1808 while (*s
== ' ' || *s
== '\t')
1811 if (*s
!= ',' && *s
!= 0)
1812 error (_("Invalid argument syntax"));
1816 while (*s
== ' ' || *s
== '\t')
1819 /* Need extra space for the '\0's. Doubling the size is sufficient. */
1820 substrings
= alloca (strlen (string
) * 2);
1821 current_substring
= substrings
;
1824 /* Now scan the string for %-specs and see what kinds of args they want.
1825 argclass[I] classifies the %-specs so we can give printf_filtered
1826 something of the right size. */
1830 int_arg
, long_arg
, long_long_arg
, ptr_arg
, string_arg
,
1831 double_arg
, long_double_arg
, decfloat_arg
1833 enum argclass
*argclass
;
1834 enum argclass this_argclass
;
1839 argclass
= (enum argclass
*) alloca (strlen (s
) * sizeof *argclass
);
1846 int seen_hash
= 0, seen_zero
= 0, lcount
= 0, seen_prec
= 0;
1847 int seen_space
= 0, seen_plus
= 0;
1848 int seen_big_l
= 0, seen_h
= 0, seen_big_h
= 0;
1849 int seen_big_d
= 0, seen_double_big_d
= 0;
1852 /* Check the validity of the format specifier, and work
1853 out what argument it expects. We only accept C89
1854 format strings, with the exception of long long (which
1855 we autoconf for). */
1857 /* Skip over "%%". */
1864 /* The first part of a format specifier is a set of flag
1866 while (strchr ("0-+ #", *f
))
1879 /* The next part of a format specifier is a width. */
1880 while (strchr ("0123456789", *f
))
1883 /* The next part of a format specifier is a precision. */
1888 while (strchr ("0123456789", *f
))
1892 /* The next part of a format specifier is a length modifier. */
1913 /* Decimal32 modifier. */
1919 /* Decimal64 and Decimal128 modifiers. */
1924 /* Check for a Decimal128. */
1928 seen_double_big_d
= 1;
1944 if (seen_space
|| seen_plus
)
1951 this_argclass
= int_arg
;
1952 else if (lcount
== 1)
1953 this_argclass
= long_arg
;
1955 this_argclass
= long_long_arg
;
1962 this_argclass
= int_arg
;
1963 if (lcount
|| seen_h
|| seen_big_l
)
1965 if (seen_prec
|| seen_zero
|| seen_space
|| seen_plus
)
1970 this_argclass
= ptr_arg
;
1971 if (lcount
|| seen_h
|| seen_big_l
)
1973 if (seen_prec
|| seen_zero
|| seen_space
|| seen_plus
)
1978 this_argclass
= string_arg
;
1979 if (lcount
|| seen_h
|| seen_big_l
)
1981 if (seen_zero
|| seen_space
|| seen_plus
)
1990 if (seen_big_h
|| seen_big_d
|| seen_double_big_d
)
1991 this_argclass
= decfloat_arg
;
1992 else if (seen_big_l
)
1993 this_argclass
= long_double_arg
;
1995 this_argclass
= double_arg
;
1997 if (lcount
|| seen_h
)
2002 error (_("`*' not supported for precision or width in printf"));
2005 error (_("Format specifier `n' not supported in printf"));
2008 error (_("Incomplete format specifier at end of format string"));
2011 error (_("Unrecognized format specifier '%c' in printf"), *f
);
2015 error (_("Inappropriate modifiers to format specifier '%c' in printf"),
2020 if (lcount
> 1 && USE_PRINTF_I64
)
2022 /* Windows' printf does support long long, but not the usual way.
2023 Convert %lld to %I64d. */
2024 int length_before_ll
= f
- last_arg
- 1 - lcount
;
2025 strncpy (current_substring
, last_arg
, length_before_ll
);
2026 strcpy (current_substring
+ length_before_ll
, "I64");
2027 current_substring
[length_before_ll
+ 3] =
2028 last_arg
[length_before_ll
+ lcount
];
2029 current_substring
+= length_before_ll
+ 4;
2033 strncpy (current_substring
, last_arg
, f
- last_arg
);
2034 current_substring
+= f
- last_arg
;
2036 *current_substring
++ = '\0';
2038 argclass
[nargs_wanted
++] = this_argclass
;
2041 /* Now, parse all arguments and evaluate them.
2042 Store the VALUEs in VAL_ARGS. */
2047 if (nargs
== allocated_args
)
2048 val_args
= (struct value
**) xrealloc ((char *) val_args
,
2049 (allocated_args
*= 2)
2050 * sizeof (struct value
*));
2052 val_args
[nargs
] = parse_to_comma_and_eval (&s1
);
2054 /* If format string wants a float, unchecked-convert the value to
2055 floating point of the same size */
2057 if (argclass
[nargs
] == double_arg
)
2059 struct type
*type
= value_type (val_args
[nargs
]);
2060 if (TYPE_LENGTH (type
) == sizeof (float))
2061 deprecated_set_value_type (val_args
[nargs
], builtin_type_float
);
2062 if (TYPE_LENGTH (type
) == sizeof (double))
2063 deprecated_set_value_type (val_args
[nargs
], builtin_type_double
);
2071 if (nargs
!= nargs_wanted
)
2072 error (_("Wrong number of arguments for specified format-string"));
2074 /* Now actually print them. */
2075 current_substring
= substrings
;
2076 for (i
= 0; i
< nargs
; i
++)
2078 switch (argclass
[i
])
2085 tem
= value_as_address (val_args
[i
]);
2087 /* This is a %s argument. Find the length of the string. */
2092 read_memory (tem
+ j
, &c
, 1);
2097 /* Copy the string contents into a string inside GDB. */
2098 str
= (gdb_byte
*) alloca (j
+ 1);
2100 read_memory (tem
, str
, j
);
2103 printf_filtered (current_substring
, (char *) str
);
2108 double val
= value_as_double (val_args
[i
]);
2109 printf_filtered (current_substring
, val
);
2112 case long_double_arg
:
2113 #ifdef HAVE_LONG_DOUBLE
2115 long double val
= value_as_double (val_args
[i
]);
2116 printf_filtered (current_substring
, val
);
2120 error (_("long double not supported in printf"));
2123 #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
2125 long long val
= value_as_long (val_args
[i
]);
2126 printf_filtered (current_substring
, val
);
2130 error (_("long long not supported in printf"));
2134 int val
= value_as_long (val_args
[i
]);
2135 printf_filtered (current_substring
, val
);
2140 long val
= value_as_long (val_args
[i
]);
2141 printf_filtered (current_substring
, val
);
2145 /* Handles decimal floating values. */
2148 const gdb_byte
*param_ptr
= value_contents (val_args
[i
]);
2149 #if defined (PRINTF_HAS_DECFLOAT)
2150 /* If we have native support for Decimal floating
2151 printing, handle it here. */
2152 printf_filtered (current_substring
, param_ptr
);
2155 /* As a workaround until vasprintf has native support for DFP
2156 we convert the DFP values to string and print them using
2157 the %s format specifier. */
2160 int nnull_chars
= 0;
2162 /* Parameter data. */
2163 struct type
*param_type
= value_type (val_args
[i
]);
2164 unsigned int param_len
= TYPE_LENGTH (param_type
);
2166 /* DFP output data. */
2167 struct value
*dfp_value
= NULL
;
2171 struct type
*dfp_type
= NULL
;
2172 char decstr
[MAX_DECIMAL_STRING
];
2174 /* Points to the end of the string so that we can go back
2175 and check for DFP length modifiers. */
2176 eos
= current_substring
+ strlen (current_substring
);
2178 /* Look for the float/double format specifier. */
2179 while (*eos
!= 'f' && *eos
!= 'e' && *eos
!= 'E'
2180 && *eos
!= 'g' && *eos
!= 'G')
2185 /* Search for the '%' char and extract the size and type of
2186 the output decimal value based on its modifiers
2187 (%Hf, %Df, %DDf). */
2188 while (*--sos
!= '%')
2193 dfp_type
= builtin_type (current_gdbarch
)->builtin_decfloat
;
2195 else if (*sos
== 'D' && *(sos
- 1) == 'D')
2198 dfp_type
= builtin_type (current_gdbarch
)->builtin_declong
;
2204 dfp_type
= builtin_type (current_gdbarch
)->builtin_decdouble
;
2208 /* Replace %Hf, %Df and %DDf with %s's. */
2211 /* Go through the whole format string and pull the correct
2212 number of chars back to compensate for the change in the
2213 format specifier. */
2214 while (nnull_chars
< nargs
- i
)
2222 /* Conversion between different DFP types. */
2223 if (TYPE_CODE (param_type
) == TYPE_CODE_DECFLOAT
)
2224 decimal_convert (param_ptr
, param_len
, dec
, dfp_len
);
2226 /* If this is a non-trivial conversion, just output 0.
2227 A correct converted value can be displayed by explicitly
2228 casting to a DFP type. */
2229 decimal_from_string (dec
, dfp_len
, "0");
2231 dfp_value
= value_from_decfloat (dfp_type
, dec
);
2233 dfp_ptr
= (gdb_byte
*) value_contents (dfp_value
);
2235 decimal_to_string (dfp_ptr
, dfp_len
, decstr
);
2237 /* Print the DFP value. */
2238 printf_filtered (current_substring
, decstr
);
2246 /* We avoid the host's %p because pointers are too
2247 likely to be the wrong size. The only interesting
2248 modifier for %p is a width; extract that, and then
2249 handle %p as glibc would: %#x or a literal "(nil)". */
2251 char *p
, *fmt
, *fmt_p
;
2252 #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
2253 long long val
= value_as_long (val_args
[i
]);
2255 long val
= value_as_long (val_args
[i
]);
2258 fmt
= alloca (strlen (current_substring
) + 5);
2260 /* Copy up to the leading %. */
2261 p
= current_substring
;
2265 int is_percent
= (*p
== '%');
2279 /* Copy any width. */
2280 while (*p
>= '0' && *p
< '9')
2283 gdb_assert (*p
== 'p' && *(p
+ 1) == '\0');
2286 #if defined (CC_HAS_LONG_LONG) && defined (PRINTF_HAS_LONG_LONG)
2292 printf_filtered (fmt
, val
);
2298 printf_filtered (fmt
, "(nil)");
2304 internal_error (__FILE__
, __LINE__
,
2305 _("failed internal consistency check"));
2307 /* Skip to the next substring. */
2308 current_substring
+= strlen (current_substring
) + 1;
2310 /* Print the portion of the format string after the last argument. */
2311 puts_filtered (last_arg
);
2313 do_cleanups (old_cleanups
);
2317 _initialize_printcmd (void)
2319 struct cmd_list_element
*c
;
2321 current_display_number
= -1;
2323 add_info ("address", address_info
,
2324 _("Describe where symbol SYM is stored."));
2326 add_info ("symbol", sym_info
, _("\
2327 Describe what symbol is at location ADDR.\n\
2328 Only for symbols with fixed locations (global or static scope)."));
2330 add_com ("x", class_vars
, x_command
, _("\
2331 Examine memory: x/FMT ADDRESS.\n\
2332 ADDRESS is an expression for the memory address to examine.\n\
2333 FMT is a repeat count followed by a format letter and a size letter.\n\
2334 Format letters are o(octal), x(hex), d(decimal), u(unsigned decimal),\n\
2335 t(binary), f(float), a(address), i(instruction), c(char) and s(string).\n\
2336 Size letters are b(byte), h(halfword), w(word), g(giant, 8 bytes).\n\
2337 The specified number of objects of the specified size are printed\n\
2338 according to the format.\n\n\
2339 Defaults for format and size letters are those previously used.\n\
2340 Default count is 1. Default address is following last thing printed\n\
2341 with this command or \"print\"."));
2344 add_com ("whereis", class_vars
, whereis_command
,
2345 _("Print line number and file of definition of variable."));
2348 add_info ("display", display_info
, _("\
2349 Expressions to display when program stops, with code numbers."));
2351 add_cmd ("undisplay", class_vars
, undisplay_command
, _("\
2352 Cancel some expressions to be displayed when program stops.\n\
2353 Arguments are the code numbers of the expressions to stop displaying.\n\
2354 No argument means cancel all automatic-display expressions.\n\
2355 \"delete display\" has the same effect as this command.\n\
2356 Do \"info display\" to see current list of code numbers."),
2359 add_com ("display", class_vars
, display_command
, _("\
2360 Print value of expression EXP each time the program stops.\n\
2361 /FMT may be used before EXP as in the \"print\" command.\n\
2362 /FMT \"i\" or \"s\" or including a size-letter is allowed,\n\
2363 as in the \"x\" command, and then EXP is used to get the address to examine\n\
2364 and examining is done as in the \"x\" command.\n\n\
2365 With no argument, display all currently requested auto-display expressions.\n\
2366 Use \"undisplay\" to cancel display requests previously made."));
2368 add_cmd ("display", class_vars
, enable_display
, _("\
2369 Enable some expressions to be displayed when program stops.\n\
2370 Arguments are the code numbers of the expressions to resume displaying.\n\
2371 No argument means enable all automatic-display expressions.\n\
2372 Do \"info display\" to see current list of code numbers."), &enablelist
);
2374 add_cmd ("display", class_vars
, disable_display_command
, _("\
2375 Disable some expressions to be displayed when program stops.\n\
2376 Arguments are the code numbers of the expressions to stop displaying.\n\
2377 No argument means disable all automatic-display expressions.\n\
2378 Do \"info display\" to see current list of code numbers."), &disablelist
);
2380 add_cmd ("display", class_vars
, undisplay_command
, _("\
2381 Cancel some expressions to be displayed when program stops.\n\
2382 Arguments are the code numbers of the expressions to stop displaying.\n\
2383 No argument means cancel all automatic-display expressions.\n\
2384 Do \"info display\" to see current list of code numbers."), &deletelist
);
2386 add_com ("printf", class_vars
, printf_command
, _("\
2387 printf \"printf format string\", arg1, arg2, arg3, ..., argn\n\
2388 This is useful for formatted output in user-defined commands."));
2390 add_com ("output", class_vars
, output_command
, _("\
2391 Like \"print\" but don't put in value history and don't print newline.\n\
2392 This is useful in user-defined commands."));
2394 add_prefix_cmd ("set", class_vars
, set_command
, _("\
2395 Evaluate expression EXP and assign result to variable VAR, using assignment\n\
2396 syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
2397 example). VAR may be a debugger \"convenience\" variable (names starting\n\
2398 with $), a register (a few standard names starting with $), or an actual\n\
2399 variable in the program being debugged. EXP is any valid expression.\n\
2400 Use \"set variable\" for variables with names identical to set subcommands.\n\
2402 With a subcommand, this command modifies parts of the gdb environment.\n\
2403 You can see these environment settings with the \"show\" command."),
2404 &setlist
, "set ", 1, &cmdlist
);
2406 add_com ("assign", class_vars
, set_command
, _("\
2407 Evaluate expression EXP and assign result to variable VAR, using assignment\n\
2408 syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
2409 example). VAR may be a debugger \"convenience\" variable (names starting\n\
2410 with $), a register (a few standard names starting with $), or an actual\n\
2411 variable in the program being debugged. EXP is any valid expression.\n\
2412 Use \"set variable\" for variables with names identical to set subcommands.\n\
2413 \nWith a subcommand, this command modifies parts of the gdb environment.\n\
2414 You can see these environment settings with the \"show\" command."));
2416 /* "call" is the same as "set", but handy for dbx users to call fns. */
2417 c
= add_com ("call", class_vars
, call_command
, _("\
2418 Call a function in the program.\n\
2419 The argument is the function name and arguments, in the notation of the\n\
2420 current working language. The result is printed and saved in the value\n\
2421 history, if it is not void."));
2422 set_cmd_completer (c
, location_completer
);
2424 add_cmd ("variable", class_vars
, set_command
, _("\
2425 Evaluate expression EXP and assign result to variable VAR, using assignment\n\
2426 syntax appropriate for the current language (VAR = EXP or VAR := EXP for\n\
2427 example). VAR may be a debugger \"convenience\" variable (names starting\n\
2428 with $), a register (a few standard names starting with $), or an actual\n\
2429 variable in the program being debugged. EXP is any valid expression.\n\
2430 This may usually be abbreviated to simply \"set\"."),
2433 c
= add_com ("print", class_vars
, print_command
, _("\
2434 Print value of expression EXP.\n\
2435 Variables accessible are those of the lexical environment of the selected\n\
2436 stack frame, plus all those whose scope is global or an entire file.\n\
2438 $NUM gets previous value number NUM. $ and $$ are the last two values.\n\
2439 $$NUM refers to NUM'th value back from the last one.\n\
2440 Names starting with $ refer to registers (with the values they would have\n\
2441 if the program were to return to the stack frame now selected, restoring\n\
2442 all registers saved by frames farther in) or else to debugger\n\
2443 \"convenience\" variables (any such name not a known register).\n\
2444 Use assignment expressions to give values to convenience variables.\n\
2446 {TYPE}ADREXP refers to a datum of data type TYPE, located at address ADREXP.\n\
2447 @ is a binary operator for treating consecutive data objects\n\
2448 anywhere in memory as an array. FOO@NUM gives an array whose first\n\
2449 element is FOO, whose second element is stored in the space following\n\
2450 where FOO is stored, etc. FOO must be an expression whose value\n\
2451 resides in memory.\n\
2453 EXP may be preceded with /FMT, where FMT is a format letter\n\
2454 but no count or size letter (see \"x\" command)."));
2455 set_cmd_completer (c
, location_completer
);
2456 add_com_alias ("p", "print", class_vars
, 1);
2458 c
= add_com ("inspect", class_vars
, inspect_command
, _("\
2459 Same as \"print\" command, except that if you are running in the epoch\n\
2460 environment, the value is printed in its own window."));
2461 set_cmd_completer (c
, location_completer
);
2463 add_setshow_uinteger_cmd ("max-symbolic-offset", no_class
,
2464 &max_symbolic_offset
, _("\
2465 Set the largest offset that will be printed in <symbol+1234> form."), _("\
2466 Show the largest offset that will be printed in <symbol+1234> form."), NULL
,
2468 show_max_symbolic_offset
,
2469 &setprintlist
, &showprintlist
);
2470 add_setshow_boolean_cmd ("symbol-filename", no_class
,
2471 &print_symbol_filename
, _("\
2472 Set printing of source filename and line number with <symbol>."), _("\
2473 Show printing of source filename and line number with <symbol>."), NULL
,
2475 show_print_symbol_filename
,
2476 &setprintlist
, &showprintlist
);
2478 /* For examine/instruction a single byte quantity is specified as
2479 the data. This avoids problems with value_at_lazy() requiring a
2480 valid data type (and rejecting VOID). */
2481 examine_i_type
= init_type (TYPE_CODE_INT
, 1, 0, "examine_i_type", NULL
);
2483 examine_b_type
= init_type (TYPE_CODE_INT
, 1, 0, "examine_b_type", NULL
);
2484 examine_h_type
= init_type (TYPE_CODE_INT
, 2, 0, "examine_h_type", NULL
);
2485 examine_w_type
= init_type (TYPE_CODE_INT
, 4, 0, "examine_w_type", NULL
);
2486 examine_g_type
= init_type (TYPE_CODE_INT
, 8, 0, "examine_g_type", NULL
);