1 /* Scheme/Guile language support routines for GDB, the GNU debugger.
3 Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007, 2008
4 Free Software Foundation, Inc.
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 3 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, see <http://www.gnu.org/licenses/>. */
24 #include "expression.h"
25 #include "parser-defs.h"
34 static void scm_ipruk (char *, LONGEST, struct ui_file *);
35 static void scm_scmlist_print (LONGEST, struct ui_file *, int, int,
36 int, enum val_prettyprint);
37 static int scm_inferior_print (LONGEST, struct ui_file *, int, int,
38 int, enum val_prettyprint);
40 /* Prints the SCM value VALUE by invoking the inferior, if appropraite.
41 Returns >= 0 on success; return -1 if the inferior cannot/should not
45 scm_inferior_print (LONGEST value, struct ui_file *stream, int format,
46 int deref_ref, int recurse, enum val_prettyprint pretty)
48 struct value *func, *arg, *result;
49 struct symbol *gdb_output_sym, *gdb_output_len_sym;
53 func = find_function_in_inferior ("gdb_print");
54 arg = value_from_longest (builtin_type_CORE_ADDR, value);
56 result = call_function_by_hand (func, 1, &arg);
57 ret = (int) value_as_long (result);
60 /* XXX: Should we cache these symbols? */
62 lookup_symbol_global ("gdb_output", NULL, NULL, VAR_DOMAIN);
64 lookup_symbol_global ("gdb_output_length", NULL, NULL, VAR_DOMAIN);
66 if ((gdb_output_sym == NULL) || (gdb_output_len_sym == NULL))
70 struct value *remote_buffer;
72 read_memory (SYMBOL_VALUE_ADDRESS (gdb_output_len_sym),
73 (char *) &output_len, sizeof (output_len));
75 output = (char *) alloca (output_len);
76 remote_buffer = value_at (builtin_type_CORE_ADDR,
77 SYMBOL_VALUE_ADDRESS (gdb_output_sym));
78 read_memory (value_as_address (remote_buffer),
81 ui_file_write (stream, output, output_len);
88 /* {Names of immediate symbols}
89 * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/
91 static char *scm_isymnames[] =
93 /* This table must agree with the declarations */
109 "literal-variable-ref",
110 "literal-variable-set!",
113 "call-with-current-continuation",
115 /* user visible ISYMS */
128 scm_scmlist_print (LONGEST svalue, struct ui_file *stream, int format,
129 int deref_ref, int recurse, enum val_prettyprint pretty)
131 unsigned int more = print_max;
134 fputs_filtered ("...", stream);
137 scm_scmval_print (SCM_CAR (svalue), stream, format,
138 deref_ref, recurse + 1, pretty);
139 svalue = SCM_CDR (svalue);
140 for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue))
142 if (SCM_NECONSP (svalue))
144 fputs_filtered (" ", stream);
147 fputs_filtered ("...", stream);
150 scm_scmval_print (SCM_CAR (svalue), stream, format,
151 deref_ref, recurse + 1, pretty);
153 if (SCM_NNULLP (svalue))
155 fputs_filtered (" . ", stream);
156 scm_scmval_print (svalue, stream, format,
157 deref_ref, recurse + 1, pretty);
162 scm_ipruk (char *hdr, LONGEST ptr, struct ui_file *stream)
164 fprintf_filtered (stream, "#<unknown-%s", hdr);
165 #define SCM_SIZE TYPE_LENGTH (builtin_type_scm)
167 fprintf_filtered (stream, " (0x%lx . 0x%lx) @",
168 (long) SCM_CAR (ptr), (long) SCM_CDR (ptr));
169 fprintf_filtered (stream, " 0x%s>", paddr_nz (ptr));
173 scm_scmval_print (LONGEST svalue, struct ui_file *stream, int format,
174 int deref_ref, int recurse, enum val_prettyprint pretty)
177 switch (7 & (int) svalue)
181 print_longest (stream, format ? format : 'd', 1, svalue >> 2);
184 if (SCM_ICHRP (svalue))
186 svalue = SCM_ICHR (svalue);
187 scm_printchar (svalue, stream);
190 else if (SCM_IFLAGP (svalue)
191 && (SCM_ISYMNUM (svalue)
192 < (sizeof scm_isymnames / sizeof (char *))))
194 fputs_filtered (SCM_ISYMCHARS (svalue), stream);
197 else if (SCM_ILOCP (svalue))
199 fprintf_filtered (stream, "#@%ld%c%ld",
200 (long) SCM_IFRAME (svalue),
201 SCM_ICDRP (svalue) ? '-' : '+',
202 (long) SCM_IDIST (svalue));
210 svalue = SCM_CAR (svalue - 1);
214 scm_ipruk ("immediate", svalue, stream);
218 switch (SCM_TYP7 (svalue))
220 case scm_tcs_cons_gloc:
221 if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0)
226 fputs_filtered ("#<latte ", stream);
228 fputs_filtered ("???", stream);
230 name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name];
231 scm_lfwrite (CHARS (name),
232 (sizet) sizeof (char),
233 (sizet) LENGTH (name),
236 fprintf_filtered (stream, " #X%s>", paddr_nz (svalue));
239 case scm_tcs_cons_imcar:
240 case scm_tcs_cons_nimcar:
241 fputs_filtered ("(", stream);
242 scm_scmlist_print (svalue, stream, format,
243 deref_ref, recurse + 1, pretty);
244 fputs_filtered (")", stream);
246 case scm_tcs_closures:
247 fputs_filtered ("#<CLOSURE ", stream);
248 scm_scmlist_print (SCM_CODE (svalue), stream, format,
249 deref_ref, recurse + 1, pretty);
250 fputs_filtered (">", stream);
254 int len = SCM_LENGTH (svalue);
255 CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue);
260 int truncate = print_max && len > (int) print_max;
263 fputs_filtered ("\"", stream);
264 for (; done < len; done += buf_size)
266 buf_size = min (len - done, 64);
267 read_memory (addr + done, buffer, buf_size);
269 for (i = 0; i < buf_size; ++i)
274 fputs_filtered ("\\", stream);
276 fprintf_filtered (stream, "%c", buffer[i]);
279 fputs_filtered (truncate ? "...\"" : "\"", stream);
283 case scm_tcs_symbols:
285 int len = SCM_LENGTH (svalue);
287 char *str = alloca (len);
288 read_memory (SCM_CDR (svalue), (gdb_byte *) str, len + 1);
289 /* Should handle weird characters FIXME */
291 fputs_filtered (str, stream);
296 int len = SCM_LENGTH (svalue);
298 LONGEST elements = SCM_CDR (svalue);
299 fputs_filtered ("#(", stream);
300 for (i = 0; i < len; ++i)
303 fputs_filtered (" ", stream);
304 scm_scmval_print (scm_get_field (elements, i), stream, format,
305 deref_ref, recurse + 1, pretty);
307 fputs_filtered (")", stream);
315 hook = scm_get_lvector_hook (exp, LV_PRINT_FN);
318 scm_puts ("#<locked-vector ", port);
319 scm_intprint (CDR (exp), 16, port);
320 scm_puts (">", port);
326 scm_listify (exp, port,
327 (writing ? BOOL_T : BOOL_F),
330 if (result == BOOL_F)
342 scm_raprin1 (exp, port, writing);
347 int index = SCM_CAR (svalue) >> 8;
350 sprintf (str, "#%d", index);
352 char *str = index ? SCM_CHARS (scm_heap_org + index) : "";
353 #define SCM_CHARS(x) ((char *)(SCM_CDR(x)))
354 char *str = CHARS (SNAME (exp));
356 fprintf_filtered (stream, "#<primitive-procedure %s>",
363 scm_puts ("#<compiled-closure ", port);
364 scm_iprin1 (CCLO_SUBR (exp), port, writing);
365 scm_putc ('>', port);
369 fprintf_filtered (stream, "#<continuation %d @ #X%lx >",
371 (long) CHARS (svalue));
376 && scm_ptobs[i].print
377 && (scm_ptobs[i].print) (exp, port, writing))
382 if (i < scm_numsmob && scm_smobs[i].print
383 && (scm_smobs[i].print) (exp, port, writing))
391 scm_ipruk ("type", svalue, stream);
398 scm_val_print (struct type *type, const gdb_byte *valaddr,
399 int embedded_offset, CORE_ADDR address,
400 struct ui_file *stream, int format, int deref_ref,
401 int recurse, enum val_prettyprint pretty)
403 if (is_scmvalue_type (type))
405 LONGEST svalue = extract_signed_integer (valaddr, TYPE_LENGTH (type));
407 if (scm_inferior_print (svalue, stream, format,
408 deref_ref, recurse, pretty) >= 0)
413 scm_scmval_print (svalue, stream, format,
414 deref_ref, recurse, pretty);
422 return c_val_print (type, valaddr, 0, address, stream, format,
423 deref_ref, recurse, pretty);
428 scm_value_print (struct value *val, struct ui_file *stream, int format,
429 enum val_prettyprint pretty)
431 return (common_val_print (val, stream, format, 1, 0, pretty,