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, "0x%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, "0x%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,
202 case TYPE_CODE_MEMBER:
204 case TYPE_CODE_UNION:
208 case TYPE_CODE_ERROR:
209 case TYPE_CODE_RANGE:
210 error ("Unimplemented chill_val_print support for type %d",
215 error ("Invalid Chill type code %d in symbol table.", TYPE_CODE (type));
221 /* Mutually recursive subroutines of cplus_print_value and c_val_print to
222 print out a structure's fields: cp_print_value_fields and cplus_print_value.
224 TYPE, VALADDR, STREAM, RECURSE, and PRETTY have the
225 same meanings as in cplus_print_value and c_val_print.
227 DONT_PRINT is an array of baseclass types that we
228 should not print, or zero if called from top level. */
231 chill_print_value_fields (type, valaddr, stream, format, recurse, pretty,
238 enum val_prettyprint pretty;
239 struct type **dont_print;
244 check_stub_type (type);
246 fprintf_filtered (stream, "(");
247 len = TYPE_NFIELDS (type);
250 fprintf_filtered (stream, "<No data fields>");
254 for (i = 0; i < len; i++)
258 fprintf_filtered (stream, ", ");
263 fprintf_filtered (stream, "\n");
264 print_spaces_filtered (2 + 2 * recurse, stream);
268 wrap_here (n_spaces (2 + 2 * recurse));
270 fprintf_symbol_filtered (stream, TYPE_FIELD_NAME (type, i),
271 language_chill, DMGL_NO_OPTS);
272 fputs_filtered (" = ", stream);
273 if (TYPE_FIELD_PACKED (type, i))
277 /* Bitfields require special handling, especially due to byte
279 v = value_from_longest (TYPE_FIELD_TYPE (type, i),
280 unpack_field_as_long (type, valaddr, i));
282 chill_val_print (TYPE_FIELD_TYPE (type, i), VALUE_CONTENTS (v), 0,
283 stream, format, 0, recurse + 1, pretty);
287 chill_val_print (TYPE_FIELD_TYPE (type, i),
288 valaddr + TYPE_FIELD_BITPOS (type, i) / 8,
289 0, stream, format, 0, recurse + 1, pretty);
294 fprintf_filtered (stream, "\n");
295 print_spaces_filtered (2 * recurse, stream);
298 fprintf_filtered (stream, ")");