1 /* Support for printing Chill values for GDB, the GNU debugger.
2 Copyright 1986, 1988, 1989, 1991 Free Software Foundation, Inc.
4 This file is part of GDB.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
25 #include "expression.h"
31 chill_print_value_fields
PARAMS ((struct type
*, char *, FILE *, int, int,
32 enum val_prettyprint
, struct type
**));
35 /* Print data of type TYPE located at VALADDR (within GDB), which came from
36 the inferior at address ADDRESS, onto stdio stream STREAM according to
37 FORMAT (a letter or 0 for natural format). The data at VALADDR is in
40 If the data are a string pointer, returns the number of string characters
43 If DEREF_REF is nonzero, then dereference references, otherwise just print
46 The PRETTY parameter controls prettyprinting. */
49 chill_val_print (type
, valaddr
, address
, stream
, format
, deref_ref
, recurse
,
58 enum val_prettyprint pretty
;
61 unsigned int i
= 0; /* Number of characters printed. */
66 switch (TYPE_CODE (type
))
69 if (TYPE_LENGTH (type
) > 0 && TYPE_LENGTH (TYPE_TARGET_TYPE (type
)) > 0)
71 if (prettyprint_arrays
)
73 print_spaces_filtered (2 + 2 * recurse
, stream
);
75 fprintf_filtered (stream
, "[");
76 val_print_array_elements (type
, valaddr
, address
, stream
, format
,
77 deref_ref
, recurse
, pretty
, 0);
78 fprintf_filtered (stream
, "]");
82 error ("unimplemented in chill_val_print; unspecified array length");
87 format
= format
? format
: output_format
;
90 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
94 val_print_type_code_int (type
, valaddr
, stream
);
99 format
= format
? format
: output_format
;
102 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
106 LA_PRINT_CHAR ((unsigned char) unpack_long (type
, valaddr
),
114 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
118 print_floating (valaddr
, type
, stream
);
123 format
= format
? format
: output_format
;
126 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
130 val
= unpack_long (builtin_type_chill_bool
, valaddr
);
131 fprintf_filtered (stream
, val
? "TRUE" : "FALSE");
135 case TYPE_CODE_UNDEF
:
136 /* This happens (without TYPE_FLAG_STUB set) on systems which don't use
137 dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
138 and no complete type for struct foo in that file. */
139 fprintf_filtered (stream
, "<incomplete type>");
143 if (format
&& format
!= 's')
145 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
148 addr
= unpack_pointer (type
, valaddr
);
149 elttype
= TYPE_TARGET_TYPE (type
);
151 if (TYPE_CODE (elttype
) == TYPE_CODE_FUNC
)
153 /* Try to print what function it points to. */
154 print_address_demangle (addr
, stream
, demangle
);
155 /* Return value is irrelevant except for string pointers. */
158 if (addressprint
&& format
!= 's')
160 fprintf_filtered (stream
, "H'%x", addr
);
163 /* For a pointer to char or unsigned char, also print the string
164 pointed to, unless pointer is null. */
165 if (TYPE_LENGTH (elttype
) == 1
166 && TYPE_CODE (elttype
) == TYPE_CODE_CHAR
167 && (format
== 0 || format
== 's')
169 && /* If print_max is UINT_MAX, the alloca below will fail.
170 In that case don't try to print the string. */
171 print_max
< UINT_MAX
)
173 i
= val_print_string (addr
, 0, stream
);
175 /* Return number of characters printed, plus one for the
176 terminating null if we have "reached the end". */
177 return (i
+ (print_max
&& i
!= print_max
));
180 case TYPE_CODE_STRING
:
181 if (format
&& format
!= 's')
183 print_scalar_formatted (valaddr
, type
, format
, 0, stream
);
186 if (addressprint
&& format
!= 's')
188 fprintf_filtered (stream
, "H'%x ", addr
);
190 i
= TYPE_LENGTH (type
);
191 LA_PRINT_STRING (stream
, valaddr
, i
, 0);
192 /* Return number of characters printed, plus one for the terminating
193 null if we have "reached the end". */
194 return (i
+ (print_max
&& i
!= print_max
));
197 case TYPE_CODE_STRUCT
:
198 chill_print_value_fields (type
, valaddr
, stream
, format
, recurse
, pretty
,
205 fprintf_filtered (stream
, "LOC(H'%lx)",
206 unpack_long (builtin_type_int
, valaddr
));
208 fputs_filtered (": ", stream
);
210 /* De-reference the reference. */
213 if (TYPE_CODE (TYPE_TARGET_TYPE (type
)) != TYPE_CODE_UNDEF
)
217 (TYPE_TARGET_TYPE (type
),
218 unpack_pointer (lookup_pointer_type (builtin_type_void
),
220 val_print (VALUE_TYPE (deref_val
),
221 VALUE_CONTENTS (deref_val
),
222 VALUE_ADDRESS (deref_val
), stream
, format
,
223 deref_ref
, recurse
+ 1, pretty
);
226 fputs_filtered ("???", stream
);
231 c_val_print (type
, valaddr
, address
, stream
, format
,
232 deref_ref
, recurse
, pretty
);
235 case TYPE_CODE_MEMBER
:
236 case TYPE_CODE_UNION
:
239 case TYPE_CODE_ERROR
:
240 case TYPE_CODE_RANGE
:
242 /* Let's derfer printing to the C printer, rather than
243 print an error message. FIXME! */
244 c_val_print (type
, valaddr
, address
, stream
, format
,
245 deref_ref
, recurse
, pretty
);
251 /* Mutually recursive subroutines of cplus_print_value and c_val_print to
252 print out a structure's fields: cp_print_value_fields and cplus_print_value.
254 TYPE, VALADDR, STREAM, RECURSE, and PRETTY have the
255 same meanings as in cplus_print_value and c_val_print.
257 DONT_PRINT is an array of baseclass types that we
258 should not print, or zero if called from top level. */
261 chill_print_value_fields (type
, valaddr
, stream
, format
, recurse
, pretty
,
268 enum val_prettyprint pretty
;
269 struct type
**dont_print
;
274 check_stub_type (type
);
276 fprintf_filtered (stream
, "[");
277 len
= TYPE_NFIELDS (type
);
280 fprintf_filtered (stream
, "<No data fields>");
284 for (i
= 0; i
< len
; i
++)
288 fprintf_filtered (stream
, ", ");
293 fprintf_filtered (stream
, "\n");
294 print_spaces_filtered (2 + 2 * recurse
, stream
);
298 wrap_here (n_spaces (2 + 2 * recurse
));
300 fputs_filtered (".", stream
);
301 fprintf_symbol_filtered (stream
, TYPE_FIELD_NAME (type
, i
),
302 language_chill
, DMGL_NO_OPTS
);
303 fputs_filtered (": ", stream
);
304 if (TYPE_FIELD_PACKED (type
, i
))
308 /* Bitfields require special handling, especially due to byte
310 v
= value_from_longest (TYPE_FIELD_TYPE (type
, i
),
311 unpack_field_as_long (type
, valaddr
, i
));
313 chill_val_print (TYPE_FIELD_TYPE (type
, i
), VALUE_CONTENTS (v
), 0,
314 stream
, format
, 0, recurse
+ 1, pretty
);
318 chill_val_print (TYPE_FIELD_TYPE (type
, i
),
319 valaddr
+ TYPE_FIELD_BITPOS (type
, i
) / 8,
320 0, stream
, format
, 0, recurse
+ 1, pretty
);
325 fprintf_filtered (stream
, "\n");
326 print_spaces_filtered (2 * recurse
, stream
);
329 fprintf_filtered (stream
, "]");
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