1 /* Scheme/Guile language support routines for GDB, the GNU debugger.
3 Copyright 1995, 1996, 1998, 1999, 2000, 2001, 2005 Free Software
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
26 #include "expression.h"
27 #include "parser-defs.h"
35 static void scm_ipruk (char *, LONGEST, struct ui_file *);
36 static void scm_scmlist_print (LONGEST, struct ui_file *, int, int,
37 int, enum val_prettyprint);
38 static int scm_inferior_print (LONGEST, struct ui_file *, int, int,
39 int, enum val_prettyprint);
41 /* Prints the SCM value VALUE by invoking the inferior, if appropraite.
42 Returns >= 0 on succes; retunr -1 if the inferior cannot/should not
46 scm_inferior_print (LONGEST value, struct ui_file *stream, int format,
47 int deref_ref, int recurse, enum val_prettyprint pretty)
52 /* {Names of immediate symbols}
53 * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/
55 static char *scm_isymnames[] =
57 /* This table must agree with the declarations */
73 "literal-variable-ref",
74 "literal-variable-set!",
77 "call-with-current-continuation",
79 /* user visible ISYMS */
92 scm_scmlist_print (LONGEST svalue, struct ui_file *stream, int format,
93 int deref_ref, int recurse, enum val_prettyprint pretty)
95 unsigned int more = print_max;
98 fputs_filtered ("...", stream);
101 scm_scmval_print (SCM_CAR (svalue), stream, format,
102 deref_ref, recurse + 1, pretty);
103 svalue = SCM_CDR (svalue);
104 for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue))
106 if (SCM_NECONSP (svalue))
108 fputs_filtered (" ", stream);
111 fputs_filtered ("...", stream);
114 scm_scmval_print (SCM_CAR (svalue), stream, format,
115 deref_ref, recurse + 1, pretty);
117 if (SCM_NNULLP (svalue))
119 fputs_filtered (" . ", stream);
120 scm_scmval_print (svalue, stream, format,
121 deref_ref, recurse + 1, pretty);
126 scm_ipruk (char *hdr, LONGEST ptr, struct ui_file *stream)
128 fprintf_filtered (stream, "#<unknown-%s", hdr);
129 #define SCM_SIZE TYPE_LENGTH (builtin_type_scm)
131 fprintf_filtered (stream, " (0x%lx . 0x%lx) @",
132 (long) SCM_CAR (ptr), (long) SCM_CDR (ptr));
133 fprintf_filtered (stream, " 0x%s>", paddr_nz (ptr));
137 scm_scmval_print (LONGEST svalue, struct ui_file *stream, int format,
138 int deref_ref, int recurse, enum val_prettyprint pretty)
141 switch (7 & (int) svalue)
145 print_longest (stream, format ? format : 'd', 1, svalue >> 2);
148 if (SCM_ICHRP (svalue))
150 svalue = SCM_ICHR (svalue);
151 scm_printchar (svalue, stream);
154 else if (SCM_IFLAGP (svalue)
155 && (SCM_ISYMNUM (svalue)
156 < (sizeof scm_isymnames / sizeof (char *))))
158 fputs_filtered (SCM_ISYMCHARS (svalue), stream);
161 else if (SCM_ILOCP (svalue))
163 fprintf_filtered (stream, "#@%ld%c%ld",
164 (long) SCM_IFRAME (svalue),
165 SCM_ICDRP (svalue) ? '-' : '+',
166 (long) SCM_IDIST (svalue));
174 svalue = SCM_CAR (svalue - 1);
178 scm_ipruk ("immediate", svalue, stream);
182 switch (SCM_TYP7 (svalue))
184 case scm_tcs_cons_gloc:
185 if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0)
190 fputs_filtered ("#<latte ", stream);
192 fputs_filtered ("???", stream);
194 name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name];
195 scm_lfwrite (CHARS (name),
196 (sizet) sizeof (char),
197 (sizet) LENGTH (name),
200 fprintf_filtered (stream, " #X%s>", paddr_nz (svalue));
203 case scm_tcs_cons_imcar:
204 case scm_tcs_cons_nimcar:
205 fputs_filtered ("(", stream);
206 scm_scmlist_print (svalue, stream, format,
207 deref_ref, recurse + 1, pretty);
208 fputs_filtered (")", stream);
210 case scm_tcs_closures:
211 fputs_filtered ("#<CLOSURE ", stream);
212 scm_scmlist_print (SCM_CODE (svalue), stream, format,
213 deref_ref, recurse + 1, pretty);
214 fputs_filtered (">", stream);
218 int len = SCM_LENGTH (svalue);
219 CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue);
224 int truncate = print_max && len > (int) print_max;
227 fputs_filtered ("\"", stream);
228 for (; done < len; done += buf_size)
230 buf_size = min (len - done, 64);
231 read_memory (addr + done, buffer, buf_size);
233 for (i = 0; i < buf_size; ++i)
238 fputs_filtered ("\\", stream);
240 fprintf_filtered (stream, "%c", buffer[i]);
243 fputs_filtered (truncate ? "...\"" : "\"", stream);
247 case scm_tcs_symbols:
249 int len = SCM_LENGTH (svalue);
251 char *str = (char *) alloca (len);
252 read_memory (SCM_CDR (svalue), str, len + 1);
253 /* Should handle weird characters FIXME */
255 fputs_filtered (str, stream);
260 int len = SCM_LENGTH (svalue);
262 LONGEST elements = SCM_CDR (svalue);
263 fputs_filtered ("#(", stream);
264 for (i = 0; i < len; ++i)
267 fputs_filtered (" ", stream);
268 scm_scmval_print (scm_get_field (elements, i), stream, format,
269 deref_ref, recurse + 1, pretty);
271 fputs_filtered (")", stream);
279 hook = scm_get_lvector_hook (exp, LV_PRINT_FN);
282 scm_puts ("#<locked-vector ", port);
283 scm_intprint (CDR (exp), 16, port);
284 scm_puts (">", port);
290 scm_listify (exp, port,
291 (writing ? BOOL_T : BOOL_F),
294 if (result == BOOL_F)
306 scm_raprin1 (exp, port, writing);
311 int index = SCM_CAR (svalue) >> 8;
314 sprintf (str, "#%d", index);
316 char *str = index ? SCM_CHARS (scm_heap_org + index) : "";
317 #define SCM_CHARS(x) ((char *)(SCM_CDR(x)))
318 char *str = CHARS (SNAME (exp));
320 fprintf_filtered (stream, "#<primitive-procedure %s>",
327 scm_puts ("#<compiled-closure ", port);
328 scm_iprin1 (CCLO_SUBR (exp), port, writing);
329 scm_putc ('>', port);
333 fprintf_filtered (stream, "#<continuation %d @ #X%lx >",
335 (long) CHARS (svalue));
340 && scm_ptobs[i].print
341 && (scm_ptobs[i].print) (exp, port, writing))
346 if (i < scm_numsmob && scm_smobs[i].print
347 && (scm_smobs[i].print) (exp, port, writing))
355 scm_ipruk ("type", svalue, stream);
362 scm_val_print (struct type *type, const bfd_byte *valaddr,
363 int embedded_offset, CORE_ADDR address,
364 struct ui_file *stream, int format, int deref_ref,
365 int recurse, enum val_prettyprint pretty)
367 if (is_scmvalue_type (type))
369 LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type));
370 if (scm_inferior_print (svalue, stream, format,
371 deref_ref, recurse, pretty) >= 0)
376 scm_scmval_print (svalue, stream, format,
377 deref_ref, recurse, pretty);
385 return c_val_print (type, valaddr, 0, address, stream, format,
386 deref_ref, recurse, pretty);
391 scm_value_print (struct value *val, struct ui_file *stream, int format,
392 enum val_prettyprint pretty)
394 return (common_val_print (val, stream, format, 1, 0, pretty));