Commit | Line | Data |
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d4310edb LC |
1 | /* Scheme/Guile language support routines for GDB, the GNU debugger. |
2 | ||
4c38e0a4 JB |
3 | Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2005, 2007, 2008, 2009, |
4 | 2010 Free Software Foundation, Inc. | |
d4310edb LC |
5 | |
6 | This file is part of GDB. | |
7 | ||
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
d4310edb LC |
11 | (at your option) any later version. |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
d4310edb LC |
20 | |
21 | #include "defs.h" | |
22 | #include "symtab.h" | |
23 | #include "gdbtypes.h" | |
24 | #include "expression.h" | |
25 | #include "parser-defs.h" | |
26 | #include "language.h" | |
27 | #include "value.h" | |
28 | #include "scm-lang.h" | |
29 | #include "valprint.h" | |
30 | #include "gdbcore.h" | |
31 | #include "c-lang.h" | |
32 | #include "infcall.h" | |
3e3b026f | 33 | #include "objfiles.h" |
d4310edb | 34 | |
6ceaaae5 UW |
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 *); | |
d4310edb LC |
42 | |
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 | |
45 | print VALUE. */ | |
46 | ||
47 | static int | |
6ceaaae5 | 48 | scm_inferior_print (struct type *type, LONGEST value, struct ui_file *stream, |
79a45b7d | 49 | int recurse, const struct value_print_options *options) |
d4310edb LC |
50 | { |
51 | struct value *func, *arg, *result; | |
52 | struct symbol *gdb_output_sym, *gdb_output_len_sym; | |
53 | char *output; | |
54 | int ret, output_len; | |
55 | ||
6ceaaae5 UW |
56 | func = find_function_in_inferior ("gdb_print", NULL); |
57 | arg = value_from_longest (type, value); | |
d4310edb LC |
58 | |
59 | result = call_function_by_hand (func, 1, &arg); | |
60 | ret = (int) value_as_long (result); | |
61 | if (ret == 0) | |
62 | { | |
63 | /* XXX: Should we cache these symbols? */ | |
64 | gdb_output_sym = | |
94af9270 | 65 | lookup_symbol_global ("gdb_output", NULL, VAR_DOMAIN); |
d4310edb | 66 | gdb_output_len_sym = |
94af9270 | 67 | lookup_symbol_global ("gdb_output_length", NULL, VAR_DOMAIN); |
d4310edb LC |
68 | |
69 | if ((gdb_output_sym == NULL) || (gdb_output_len_sym == NULL)) | |
70 | ret = -1; | |
71 | else | |
72 | { | |
73 | struct value *remote_buffer; | |
74 | ||
75 | read_memory (SYMBOL_VALUE_ADDRESS (gdb_output_len_sym), | |
76 | (char *) &output_len, sizeof (output_len)); | |
77 | ||
78 | output = (char *) alloca (output_len); | |
6ceaaae5 | 79 | remote_buffer = value_at (type, |
d4310edb LC |
80 | SYMBOL_VALUE_ADDRESS (gdb_output_sym)); |
81 | read_memory (value_as_address (remote_buffer), | |
82 | output, output_len); | |
83 | ||
84 | ui_file_write (stream, output, output_len); | |
85 | } | |
86 | } | |
87 | ||
88 | return ret; | |
89 | } | |
90 | ||
91 | /* {Names of immediate symbols} | |
92 | * This table must agree with the declarations in scm.h: {Immediate Symbols}.*/ | |
93 | ||
94 | static char *scm_isymnames[] = | |
95 | { | |
96 | /* This table must agree with the declarations */ | |
97 | "and", | |
98 | "begin", | |
99 | "case", | |
100 | "cond", | |
101 | "do", | |
102 | "if", | |
103 | "lambda", | |
104 | "let", | |
105 | "let*", | |
106 | "letrec", | |
107 | "or", | |
108 | "quote", | |
109 | "set!", | |
110 | "define", | |
111 | #if 0 | |
112 | "literal-variable-ref", | |
113 | "literal-variable-set!", | |
114 | #endif | |
115 | "apply", | |
116 | "call-with-current-continuation", | |
117 | ||
118 | /* user visible ISYMS */ | |
119 | /* other keywords */ | |
120 | /* Flags */ | |
121 | ||
122 | "#f", | |
123 | "#t", | |
124 | "#<undefined>", | |
125 | "#<eof>", | |
126 | "()", | |
127 | "#<unspecified>" | |
128 | }; | |
129 | ||
130 | static void | |
6ceaaae5 UW |
131 | scm_scmlist_print (struct type *type, LONGEST svalue, |
132 | struct ui_file *stream, int recurse, | |
79a45b7d | 133 | const struct value_print_options *options) |
d4310edb | 134 | { |
6ceaaae5 | 135 | #define SCM_SIZE (TYPE_LENGTH (type)) |
e17a4113 | 136 | #define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type))) |
79a45b7d | 137 | unsigned int more = options->print_max; |
433759f7 | 138 | |
d4310edb LC |
139 | if (recurse > 6) |
140 | { | |
141 | fputs_filtered ("...", stream); | |
142 | return; | |
143 | } | |
6ceaaae5 | 144 | scm_scmval_print (type, SCM_CAR (svalue), stream, recurse + 1, options); |
d4310edb LC |
145 | svalue = SCM_CDR (svalue); |
146 | for (; SCM_NIMP (svalue); svalue = SCM_CDR (svalue)) | |
147 | { | |
148 | if (SCM_NECONSP (svalue)) | |
149 | break; | |
150 | fputs_filtered (" ", stream); | |
151 | if (--more == 0) | |
152 | { | |
153 | fputs_filtered ("...", stream); | |
154 | return; | |
155 | } | |
6ceaaae5 | 156 | scm_scmval_print (type, SCM_CAR (svalue), stream, recurse + 1, options); |
d4310edb LC |
157 | } |
158 | if (SCM_NNULLP (svalue)) | |
159 | { | |
160 | fputs_filtered (" . ", stream); | |
6ceaaae5 | 161 | scm_scmval_print (type, svalue, stream, recurse + 1, options); |
d4310edb | 162 | } |
e17a4113 | 163 | #undef SCM_BYTE_ORDER |
6ceaaae5 | 164 | #undef SCM_SIZE |
d4310edb LC |
165 | } |
166 | ||
167 | static void | |
6ceaaae5 UW |
168 | scm_ipruk (char *hdr, struct type *type, LONGEST ptr, |
169 | struct ui_file *stream) | |
d4310edb | 170 | { |
6ceaaae5 | 171 | #define SCM_SIZE (TYPE_LENGTH (type)) |
e17a4113 | 172 | #define SCM_BYTE_ORDER (gdbarch_byte_order (get_type_arch (type))) |
d4310edb | 173 | fprintf_filtered (stream, "#<unknown-%s", hdr); |
d4310edb LC |
174 | if (SCM_CELLP (ptr)) |
175 | fprintf_filtered (stream, " (0x%lx . 0x%lx) @", | |
176 | (long) SCM_CAR (ptr), (long) SCM_CDR (ptr)); | |
5af949e3 | 177 | fprintf_filtered (stream, " 0x%s>", phex_nz (ptr, SCM_SIZE)); |
e17a4113 | 178 | #undef SCM_BYTE_ORDER |
6ceaaae5 | 179 | #undef SCM_SIZE |
d4310edb LC |
180 | } |
181 | ||
6ceaaae5 UW |
182 | static void |
183 | scm_scmval_print (struct type *type, LONGEST svalue, | |
184 | struct ui_file *stream, int recurse, | |
185 | const struct value_print_options *options) | |
d4310edb | 186 | { |
50810684 UW |
187 | struct gdbarch *gdbarch = get_type_arch (type); |
188 | ||
6ceaaae5 | 189 | #define SCM_SIZE (TYPE_LENGTH (type)) |
e17a4113 | 190 | #define SCM_BYTE_ORDER (gdbarch_byte_order (gdbarch)) |
d4310edb LC |
191 | taloop: |
192 | switch (7 & (int) svalue) | |
193 | { | |
194 | case 2: | |
195 | case 6: | |
79a45b7d TT |
196 | print_longest (stream, |
197 | options->format ? options->format : 'd', | |
198 | 1, svalue >> 2); | |
d4310edb LC |
199 | break; |
200 | case 4: | |
201 | if (SCM_ICHRP (svalue)) | |
202 | { | |
203 | svalue = SCM_ICHR (svalue); | |
50810684 | 204 | scm_printchar (svalue, builtin_type (gdbarch)->builtin_char, |
6c7a06a3 | 205 | stream); |
d4310edb LC |
206 | break; |
207 | } | |
208 | else if (SCM_IFLAGP (svalue) | |
209 | && (SCM_ISYMNUM (svalue) | |
210 | < (sizeof scm_isymnames / sizeof (char *)))) | |
211 | { | |
212 | fputs_filtered (SCM_ISYMCHARS (svalue), stream); | |
213 | break; | |
214 | } | |
215 | else if (SCM_ILOCP (svalue)) | |
216 | { | |
217 | fprintf_filtered (stream, "#@%ld%c%ld", | |
218 | (long) SCM_IFRAME (svalue), | |
219 | SCM_ICDRP (svalue) ? '-' : '+', | |
220 | (long) SCM_IDIST (svalue)); | |
221 | break; | |
222 | } | |
223 | else | |
224 | goto idef; | |
225 | break; | |
226 | case 1: | |
227 | /* gloc */ | |
228 | svalue = SCM_CAR (svalue - 1); | |
229 | goto taloop; | |
230 | default: | |
231 | idef: | |
6ceaaae5 | 232 | scm_ipruk ("immediate", type, svalue, stream); |
d4310edb LC |
233 | break; |
234 | case 0: | |
235 | ||
236 | switch (SCM_TYP7 (svalue)) | |
237 | { | |
238 | case scm_tcs_cons_gloc: | |
239 | if (SCM_CDR (SCM_CAR (svalue) - 1L) == 0) | |
240 | { | |
241 | #if 0 | |
242 | SCM name; | |
243 | #endif | |
433759f7 | 244 | |
d4310edb LC |
245 | fputs_filtered ("#<latte ", stream); |
246 | #if 1 | |
247 | fputs_filtered ("???", stream); | |
248 | #else | |
249 | name = ((SCM n *) (STRUCT_TYPE (exp)))[struct_i_name]; | |
250 | scm_lfwrite (CHARS (name), | |
251 | (sizet) sizeof (char), | |
252 | (sizet) LENGTH (name), | |
253 | port); | |
254 | #endif | |
5af949e3 | 255 | fprintf_filtered (stream, " #X%s>", phex_nz (svalue, SCM_SIZE)); |
d4310edb LC |
256 | break; |
257 | } | |
258 | case scm_tcs_cons_imcar: | |
259 | case scm_tcs_cons_nimcar: | |
260 | fputs_filtered ("(", stream); | |
6ceaaae5 | 261 | scm_scmlist_print (type, svalue, stream, recurse + 1, options); |
d4310edb LC |
262 | fputs_filtered (")", stream); |
263 | break; | |
264 | case scm_tcs_closures: | |
265 | fputs_filtered ("#<CLOSURE ", stream); | |
6ceaaae5 UW |
266 | scm_scmlist_print (type, SCM_CODE (svalue), stream, |
267 | recurse + 1, options); | |
d4310edb LC |
268 | fputs_filtered (">", stream); |
269 | break; | |
270 | case scm_tc7_string: | |
271 | { | |
272 | int len = SCM_LENGTH (svalue); | |
273 | CORE_ADDR addr = (CORE_ADDR) SCM_CDR (svalue); | |
274 | int i; | |
275 | int done = 0; | |
276 | int buf_size; | |
277 | gdb_byte buffer[64]; | |
79a45b7d | 278 | int truncate = options->print_max && len > (int) options->print_max; |
d4310edb | 279 | if (truncate) |
79a45b7d | 280 | len = options->print_max; |
d4310edb LC |
281 | fputs_filtered ("\"", stream); |
282 | for (; done < len; done += buf_size) | |
283 | { | |
284 | buf_size = min (len - done, 64); | |
285 | read_memory (addr + done, buffer, buf_size); | |
286 | ||
287 | for (i = 0; i < buf_size; ++i) | |
288 | switch (buffer[i]) | |
289 | { | |
290 | case '\"': | |
291 | case '\\': | |
292 | fputs_filtered ("\\", stream); | |
293 | default: | |
294 | fprintf_filtered (stream, "%c", buffer[i]); | |
295 | } | |
296 | } | |
297 | fputs_filtered (truncate ? "...\"" : "\"", stream); | |
298 | break; | |
299 | } | |
300 | break; | |
301 | case scm_tcs_symbols: | |
302 | { | |
303 | int len = SCM_LENGTH (svalue); | |
304 | ||
305 | char *str = alloca (len); | |
306 | read_memory (SCM_CDR (svalue), (gdb_byte *) str, len + 1); | |
307 | /* Should handle weird characters FIXME */ | |
308 | str[len] = '\0'; | |
309 | fputs_filtered (str, stream); | |
310 | break; | |
311 | } | |
312 | case scm_tc7_vector: | |
313 | { | |
314 | int len = SCM_LENGTH (svalue); | |
315 | int i; | |
316 | LONGEST elements = SCM_CDR (svalue); | |
e17a4113 | 317 | LONGEST val; |
433759f7 | 318 | |
d4310edb LC |
319 | fputs_filtered ("#(", stream); |
320 | for (i = 0; i < len; ++i) | |
321 | { | |
322 | if (i > 0) | |
323 | fputs_filtered (" ", stream); | |
e17a4113 UW |
324 | val = scm_get_field (elements, i, SCM_SIZE, SCM_BYTE_ORDER); |
325 | scm_scmval_print (type, val, stream, recurse + 1, options); | |
d4310edb LC |
326 | } |
327 | fputs_filtered (")", stream); | |
328 | } | |
329 | break; | |
330 | #if 0 | |
331 | case tc7_lvector: | |
332 | { | |
333 | SCM result; | |
334 | SCM hook; | |
433759f7 | 335 | |
d4310edb LC |
336 | hook = scm_get_lvector_hook (exp, LV_PRINT_FN); |
337 | if (hook == BOOL_F) | |
338 | { | |
339 | scm_puts ("#<locked-vector ", port); | |
340 | scm_intprint (CDR (exp), 16, port); | |
341 | scm_puts (">", port); | |
342 | } | |
343 | else | |
344 | { | |
345 | result | |
346 | = scm_apply (hook, | |
347 | scm_listify (exp, port, | |
348 | (writing ? BOOL_T : BOOL_F), | |
349 | SCM_UNDEFINED), | |
350 | EOL); | |
351 | if (result == BOOL_F) | |
352 | goto punk; | |
353 | } | |
354 | break; | |
355 | } | |
356 | break; | |
357 | case tc7_bvect: | |
358 | case tc7_ivect: | |
359 | case tc7_uvect: | |
360 | case tc7_fvect: | |
361 | case tc7_dvect: | |
362 | case tc7_cvect: | |
363 | scm_raprin1 (exp, port, writing); | |
364 | break; | |
365 | #endif | |
366 | case scm_tcs_subrs: | |
367 | { | |
368 | int index = SCM_CAR (svalue) >> 8; | |
369 | #if 1 | |
370 | char str[20]; | |
371 | sprintf (str, "#%d", index); | |
372 | #else | |
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)); | |
376 | #endif | |
433759f7 | 377 | |
d4310edb LC |
378 | fprintf_filtered (stream, "#<primitive-procedure %s>", |
379 | str); | |
380 | } | |
381 | break; | |
382 | #if 0 | |
383 | #ifdef CCLO | |
384 | case tc7_cclo: | |
385 | scm_puts ("#<compiled-closure ", port); | |
386 | scm_iprin1 (CCLO_SUBR (exp), port, writing); | |
387 | scm_putc ('>', port); | |
388 | break; | |
389 | #endif | |
390 | case tc7_contin: | |
391 | fprintf_filtered (stream, "#<continuation %d @ #X%lx >", | |
392 | LENGTH (svalue), | |
393 | (long) CHARS (svalue)); | |
394 | break; | |
395 | case tc7_port: | |
396 | i = PTOBNUM (exp); | |
397 | if (i < scm_numptob | |
398 | && scm_ptobs[i].print | |
399 | && (scm_ptobs[i].print) (exp, port, writing)) | |
400 | break; | |
401 | goto punk; | |
402 | case tc7_smob: | |
403 | i = SMOBNUM (exp); | |
404 | if (i < scm_numsmob && scm_smobs[i].print | |
405 | && (scm_smobs[i].print) (exp, port, writing)) | |
406 | break; | |
407 | goto punk; | |
408 | #endif | |
409 | default: | |
410 | #if 0 | |
411 | punk: | |
412 | #endif | |
6ceaaae5 | 413 | scm_ipruk ("type", type, svalue, stream); |
d4310edb LC |
414 | } |
415 | break; | |
416 | } | |
e17a4113 | 417 | #undef SCM_BYTE_ORDER |
6ceaaae5 | 418 | #undef SCM_SIZE |
d4310edb LC |
419 | } |
420 | ||
421 | int | |
422 | scm_val_print (struct type *type, const gdb_byte *valaddr, | |
423 | int embedded_offset, CORE_ADDR address, | |
79a45b7d | 424 | struct ui_file *stream, int recurse, |
0e03807e | 425 | const struct value *val, |
79a45b7d | 426 | const struct value_print_options *options) |
d4310edb | 427 | { |
0e03807e TT |
428 | if (is_scmvalue_type (type) |
429 | && value_bits_valid (val, TARGET_CHAR_BIT * embedded_offset, | |
430 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
d4310edb | 431 | { |
e17a4113 UW |
432 | enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type)); |
433 | LONGEST svalue | |
434 | = extract_signed_integer (valaddr, TYPE_LENGTH (type), byte_order); | |
d4310edb | 435 | |
6ceaaae5 | 436 | if (scm_inferior_print (type, svalue, stream, recurse, options) >= 0) |
d4310edb LC |
437 | { |
438 | } | |
439 | else | |
440 | { | |
6ceaaae5 | 441 | scm_scmval_print (type, svalue, stream, recurse, options); |
d4310edb LC |
442 | } |
443 | ||
444 | gdb_flush (stream); | |
445 | return (0); | |
446 | } | |
447 | else | |
448 | { | |
0e03807e TT |
449 | return c_val_print (type, valaddr, 0, address, stream, recurse, |
450 | val, options); | |
d4310edb LC |
451 | } |
452 | } | |
453 | ||
454 | int | |
79a45b7d TT |
455 | scm_value_print (struct value *val, struct ui_file *stream, |
456 | const struct value_print_options *options) | |
d4310edb | 457 | { |
79a45b7d | 458 | struct value_print_options opts = *options; |
433759f7 | 459 | |
79a45b7d TT |
460 | opts.deref_ref = 1; |
461 | return (common_val_print (val, stream, 0, &opts, current_language)); | |
d4310edb | 462 | } |