1 /* Scheme/Guile language support routines for GDB, the GNU debugger.
3 Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007, 2008, 2009,
4 2010 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"
35 static void scm_ipruk (char *, struct type
*, LONGEST
, struct ui_file
*);
36 static void scm_scmval_print (struct type
*, LONGEST
, struct ui_file
*,
37 int, const struct value_print_options
*);
38 static void scm_scmlist_print (struct type
*, LONGEST
, struct ui_file
*,
39 int, const struct value_print_options
*);
40 static int scm_inferior_print (struct type
*, LONGEST
, struct ui_file
*,
41 int, const struct value_print_options
*);
43 /* Prints the SCM value VALUE by invoking the inferior, if appropraite.
44 Returns >= 0 on success; return -1 if the inferior cannot/should not
48 scm_inferior_print (struct type
*type
, LONGEST value
, struct ui_file
*stream
,
49 int recurse
, const struct value_print_options
*options
)
51 struct value
*func
, *arg
, *result
;
52 struct symbol
*gdb_output_sym
, *gdb_output_len_sym
;
56 func
= find_function_in_inferior ("gdb_print", NULL
);
57 arg
= value_from_longest (type
, value
);
59 result
= call_function_by_hand (func
, 1, &arg
);
60 ret
= (int) value_as_long (result
);
63 /* XXX: Should we cache these symbols? */
65 lookup_symbol_global ("gdb_output", NULL
, VAR_DOMAIN
);
67 lookup_symbol_global ("gdb_output_length", NULL
, VAR_DOMAIN
);
69 if ((gdb_output_sym
== NULL
) || (gdb_output_len_sym
== NULL
))
73 struct value
*remote_buffer
;
75 read_memory (SYMBOL_VALUE_ADDRESS (gdb_output_len_sym
),
76 (char *) &output_len
, sizeof (output_len
));
78 output
= (char *) alloca (output_len
);
79 remote_buffer
= value_at (type
,
80 SYMBOL_VALUE_ADDRESS (gdb_output_sym
));
81 read_memory (value_as_address (remote_buffer
),
84 ui_file_write (stream
, output
, output_len
);
91 /* {Names of immediate symbols}
92 * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/
94 static char *scm_isymnames
[] =
96 /* This table must agree with the declarations */
112 "literal-variable-ref",
113 "literal-variable-set!",
116 "call-with-current-continuation",
118 /* user visible ISYMS */
131 scm_scmlist_print (struct type
*type
, LONGEST svalue
,
132 struct ui_file
*stream
, int recurse
,
133 const struct value_print_options
*options
)
135 #define SCM_SIZE (TYPE_LENGTH (type))
136 #define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type)))
137 unsigned int more
= options
->print_max
;
141 fputs_filtered ("...", stream
);
144 scm_scmval_print (type
, SCM_CAR (svalue
), stream
, recurse
+ 1, options
);
145 svalue
= SCM_CDR (svalue
);
146 for (; SCM_NIMP (svalue
); svalue
= SCM_CDR (svalue
))
148 if (SCM_NECONSP (svalue
))
150 fputs_filtered (" ", stream
);
153 fputs_filtered ("...", stream
);
156 scm_scmval_print (type
, SCM_CAR (svalue
), stream
, recurse
+ 1, options
);
158 if (SCM_NNULLP (svalue
))
160 fputs_filtered (" . ", stream
);
161 scm_scmval_print (type
, svalue
, stream
, recurse
+ 1, options
);
163 #undef SCM_BYTE_ORDER
168 scm_ipruk (char *hdr
, struct type
*type
, LONGEST ptr
,
169 struct ui_file
*stream
)
171 #define SCM_SIZE (TYPE_LENGTH (type))
172 #define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type)))
173 fprintf_filtered (stream
, "#<unknown-%s", hdr
);
175 fprintf_filtered (stream
, " (0x%lx . 0x%lx) @",
176 (long) SCM_CAR (ptr
), (long) SCM_CDR (ptr
));
177 fprintf_filtered (stream
, " 0x%s>", phex_nz (ptr
, SCM_SIZE
));
178 #undef SCM_BYTE_ORDER
183 scm_scmval_print (struct type
*type
, LONGEST svalue
,
184 struct ui_file
*stream
, int recurse
,
185 const struct value_print_options
*options
)
187 struct gdbarch
*gdbarch
= get_type_arch (type
);
189 #define SCM_SIZE (TYPE_LENGTH (type))
190 #define SCM_BYTE_ORDER (gdbarch_byte_order (gdbarch))
192 switch (7 & (int) svalue
)
196 print_longest (stream
,
197 options
->format
? options
->format
: 'd',
201 if (SCM_ICHRP (svalue
))
203 svalue
= SCM_ICHR (svalue
);
204 scm_printchar (svalue
, builtin_type (gdbarch
)->builtin_char
,
208 else if (SCM_IFLAGP (svalue
)
209 && (SCM_ISYMNUM (svalue
)
210 < (sizeof scm_isymnames
/ sizeof (char *))))
212 fputs_filtered (SCM_ISYMCHARS (svalue
), stream
);
215 else if (SCM_ILOCP (svalue
))
217 fprintf_filtered (stream
, "#@%ld%c%ld",
218 (long) SCM_IFRAME (svalue
),
219 SCM_ICDRP (svalue
) ? '-' : '+',
220 (long) SCM_IDIST (svalue
));
228 svalue
= SCM_CAR (svalue
- 1);
232 scm_ipruk ("immediate", type
, svalue
, stream
);
236 switch (SCM_TYP7 (svalue
))
238 case scm_tcs_cons_gloc
:
239 if (SCM_CDR (SCM_CAR (svalue
) - 1L) == 0)
245 fputs_filtered ("#<latte ", stream
);
247 fputs_filtered ("???", stream
);
249 name
= ((SCM n
*) (STRUCT_TYPE (exp
)))[struct_i_name
];
250 scm_lfwrite (CHARS (name
),
251 (sizet
) sizeof (char),
252 (sizet
) LENGTH (name
),
255 fprintf_filtered (stream
, " #X%s>", phex_nz (svalue
, SCM_SIZE
));
258 case scm_tcs_cons_imcar
:
259 case scm_tcs_cons_nimcar
:
260 fputs_filtered ("(", stream
);
261 scm_scmlist_print (type
, svalue
, stream
, recurse
+ 1, options
);
262 fputs_filtered (")", stream
);
264 case scm_tcs_closures
:
265 fputs_filtered ("#<CLOSURE ", stream
);
266 scm_scmlist_print (type
, SCM_CODE (svalue
), stream
,
267 recurse
+ 1, options
);
268 fputs_filtered (">", stream
);
272 int len
= SCM_LENGTH (svalue
);
273 CORE_ADDR addr
= (CORE_ADDR
) SCM_CDR (svalue
);
278 int truncate
= options
->print_max
&& len
> (int) options
->print_max
;
280 len
= options
->print_max
;
281 fputs_filtered ("\"", stream
);
282 for (; done
< len
; done
+= buf_size
)
284 buf_size
= min (len
- done
, 64);
285 read_memory (addr
+ done
, buffer
, buf_size
);
287 for (i
= 0; i
< buf_size
; ++i
)
292 fputs_filtered ("\\", stream
);
294 fprintf_filtered (stream
, "%c", buffer
[i
]);
297 fputs_filtered (truncate
? "...\"" : "\"", stream
);
301 case scm_tcs_symbols
:
303 int len
= SCM_LENGTH (svalue
);
305 char *str
= alloca (len
);
306 read_memory (SCM_CDR (svalue
), (gdb_byte
*) str
, len
+ 1);
307 /* Should handle weird characters FIXME */
309 fputs_filtered (str
, stream
);
314 int len
= SCM_LENGTH (svalue
);
316 LONGEST elements
= SCM_CDR (svalue
);
319 fputs_filtered ("#(", stream
);
320 for (i
= 0; i
< len
; ++i
)
323 fputs_filtered (" ", stream
);
324 val
= scm_get_field (elements
, i
, SCM_SIZE
, SCM_BYTE_ORDER
);
325 scm_scmval_print (type
, val
, stream
, recurse
+ 1, options
);
327 fputs_filtered (")", stream
);
336 hook
= scm_get_lvector_hook (exp
, LV_PRINT_FN
);
339 scm_puts ("#<locked-vector ", port
);
340 scm_intprint (CDR (exp
), 16, port
);
341 scm_puts (">", port
);
347 scm_listify (exp
, port
,
348 (writing
? BOOL_T
: BOOL_F
),
351 if (result
== BOOL_F
)
363 scm_raprin1 (exp
, port
, writing
);
368 int index
= SCM_CAR (svalue
) >> 8;
371 sprintf (str
, "#%d", index
);
373 char *str
= index
? SCM_CHARS (scm_heap_org
+ index
) : "";
374 #define SCM_CHARS(x) ((char *)(SCM_CDR(x)))
375 char *str
= CHARS (SNAME (exp
));
378 fprintf_filtered (stream
, "#<primitive-procedure %s>",
385 scm_puts ("#<compiled-closure ", port
);
386 scm_iprin1 (CCLO_SUBR (exp
), port
, writing
);
387 scm_putc ('>', port
);
391 fprintf_filtered (stream
, "#<continuation %d @ #X%lx >",
393 (long) CHARS (svalue
));
398 && scm_ptobs
[i
].print
399 && (scm_ptobs
[i
].print
) (exp
, port
, writing
))
404 if (i
< scm_numsmob
&& scm_smobs
[i
].print
405 && (scm_smobs
[i
].print
) (exp
, port
, writing
))
413 scm_ipruk ("type", type
, svalue
, stream
);
417 #undef SCM_BYTE_ORDER
422 scm_val_print (struct type
*type
, const gdb_byte
*valaddr
,
423 int embedded_offset
, CORE_ADDR address
,
424 struct ui_file
*stream
, int recurse
,
425 const struct value
*val
,
426 const struct value_print_options
*options
)
428 if (is_scmvalue_type (type
)
429 && value_bits_valid (val
, TARGET_CHAR_BIT
* embedded_offset
,
430 TARGET_CHAR_BIT
* TYPE_LENGTH (type
)))
432 enum bfd_endian byte_order
= gdbarch_byte_order (get_type_arch (type
));
434 = extract_signed_integer (valaddr
, TYPE_LENGTH (type
), byte_order
);
436 if (scm_inferior_print (type
, svalue
, stream
, recurse
, options
) >= 0)
441 scm_scmval_print (type
, svalue
, stream
, recurse
, options
);
449 return c_val_print (type
, valaddr
, 0, address
, stream
, recurse
,
455 scm_value_print (struct value
*val
, struct ui_file
*stream
,
456 const struct value_print_options
*options
)
458 struct value_print_options opts
= *options
;
461 return (common_val_print (val
, stream
, 0, &opts
, current_language
));
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